CN114251691A

CN114251691A - Range hood, control method thereof and computer-readable storage medium

Info

Publication number: CN114251691A
Application number: CN202011007270.7A
Authority: CN
Inventors: 刘智; 梁泽锋; 冯聪; 曲绍鹤
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2022-03-29
Anticipated expiration: 2040-09-22
Also published as: CN114251691B

Abstract

The invention discloses a range hood, a control method thereof and a computer readable storage medium, wherein the range hood comprises: a cigarette machine main body; 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 controller is electrically connected with the cigarette machine main body and the air purification device respectively; the controller is used for controlling the working state of the purifying fan according to the working parameters of the cigarette machine main body. According to the technical scheme, the working state of the purification fan can be controlled according to the working parameters, so that the working state of the air purification device is matched with the range hood main body, the air quantity of the air purification device and the air speed at the air outlet are changed, the conditions of smoke leakage and the like of the range hood main body are avoided, and the smoke absorption effect of the range hood main body is improved.

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. The air purification device has a certain air volume, and if the working state of the air purification device is not matched with the current state of the cigarette machine main body, the smoke leakage and other conditions of the cigarette machine main body can be caused, and the oil smoke absorption efficiency of the cigarette machine main body is low.

In order to realize the kitchen environment space purification function, the large-circulation air supply mode is adopted; the 3D surrounding air circulation purification system can effectively collect, filter, purify and circulate pollutants such as waste gas, oil smoke, peculiar smell and the like in a kitchen, and improve the original air quality in the kitchen; no matter in order to achieve the above purpose, the range hood provided by the 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 controller is electrically connected with the cigarette machine main body and the air purification device respectively;

the controller is used for controlling the working state of the purifying fan according to the working parameters of the cigarette machine main body.

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 working state of the purifying fan is controlled according to the working parameters so that the working state of the air purifying device is matched with the range hood main body, thereby changing the air volume of the air purifying device and the air speed at the air outlet, realizing that the efficiency of the range hood for absorbing the oil smoke is not influenced when the air purifying device is in different circulation modes and blowing air supply modes, avoiding the conditions of smoke leakage and the like of the range hood main body, and improving the effect of the range hood main body for absorbing the oil smoke.

Optionally, the working parameters include air volume information of the cigarette machine main body, and when the air purification device is started, the controller acquires the air volume information of the cigarette machine main body and controls the working state of the purification fan based on the air volume information.

The working state of the purifying fan is controlled through the air volume information so as to accurately control the purifying fan, avoid the conditions of smoke leakage and the like of the cigarette machine main body and improve the effect of absorbing the oil smoke of the cigarette machine main body.

Optionally, the air volume information includes current gear information of the cigarette machine main body, and the controller controls the working state of the purification fan based on the current gear information.

The working state of the purification fan is controlled through the current gear information of the cigarette machine main body, so that the purification fan is accurately controlled, the conditions of smoke leakage and the like of the cigarette machine main body are avoided, and the effect of absorbing oil smoke of the cigarette machine main body is improved.

Optionally, the controller determines a target starting rotation speed of the purification fan based on a mapping relation between preset gear information and a rotation speed and the current gear information, and controls the purification fan based on the target starting rotation speed.

The starting rotating speed of the purifying fan is controlled through the current gear information of the cigarette machine main body, so that the purifying fan is accurately controlled, the conditions of smoke leakage and the like of the cigarette machine main body are avoided, and the effect of absorbing oil smoke of the cigarette machine main body is improved.

Optionally, the cigarette machine main part includes decorates the cover and locates decorate the collection petticoat pipe of cover below, be equipped with the range hood in decorating the cover and inhale the oil smoke wind channel.

The air purification device is hidden in the decorative cover, so that the appearance of the range hood is simpler.

Optionally, the purification air duct is arranged in the decoration cover and is not communicated with the oil smoke suction air duct.

Optionally, the air inlet is arranged on the side surface of the decorative cover; alternatively, the first and second electrodes may be,

the air inlet is arranged at the upper part of the front side of the decorative cover; alternatively, the first and second electrodes may be,

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

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; alternatively, the first and second electrodes may be,

the air outlet is arranged on the side surface of the decorative cover; alternatively, the first and second electrodes may be,

the air outlet is formed in the top of the cigarette machine main body; alternatively, the first and second electrodes may be,

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

The air outlet is arranged on the side surface of the decoration cover or the bottom of the cigarette machine main body, so that purified air can be discharged.

Optionally, the decorative cover is provided with a filter mounting opening, and the filter element is detachably arranged on the purification air duct through the filter mounting opening.

Thus, the filter element can be conveniently detached, cleaned or replaced.

Optionally, the air purification device further comprises a purification housing arranged in the decoration cover, the purification air duct is at least partially defined by the purification housing, and the purification housing is provided with an air inlet through opening communicated with the air inlet and an air outlet through opening communicated with the air outlet;

purify the casing and correspond it is equipped with the installation mouth to strain a mounting hole, it passes through to filter the piece mounting hole with the installation mouth with purify the casing and can dismantle the connection.

It can be understood that the independent purification shell is arranged, the purification air channel can be more accurately limited, and therefore the trend of the purified air flow is accurately guided, and the purification efficiency is improved.

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

when the air purification device is started, the working parameters of the cigarette machine main body are obtained by the device; and

and controlling the working state of the purification fan based on the working parameters.

Optionally, the working parameter includes air volume information of the cigarette machine main body, and the step of controlling the working state of the purification fan based on the working parameter includes:

and controlling the working state of the purification fan based on the air volume information.

Optionally, the air volume information includes current gear information of the cigarette machine main body, and the step of controlling the working state of the purification fan based on the air volume information includes:

and controlling the working state of the purification fan based on the current gear information.

Optionally, the step of controlling the working state of the purification fan based on the current gear information includes:

determining a target starting rotating speed of the purifying fan based on a mapping relation between preset gear information and rotating speed and the current gear information; and

and controlling the purification fan based on the target starting rotating speed.

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 duct, and a small part of oil smoke can escape to other spaces in a kitchen, and can be further removed through the purification air duct, 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 working state of the purifying fan is controlled according to the working parameters so that the working state of the air purifying device is matched with the range hood main body, thereby changing the air volume of the air purifying device and the air speed at the air outlet, realizing that the efficiency of the range hood for absorbing the oil smoke is not influenced when the air purifying device is in different circulation modes and blowing air supply modes, avoiding the conditions of smoke leakage and the like of the range hood main body, and improving the effect of the range hood main body for absorbing the oil smoke.

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 view of a partial cross-sectional structure 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:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Cigarette machine main body	11	Decorative cover
12	Exhaust fume collecting hood	13	Fan cover
				111	Air inlet	112	Air outlet
113	Filter element mounting port	100	Air guide vane
				2	Air purifying device	21	Purifying shell
22	Filter element	23	Purifying fan
				24	Filter cover	211	Air inlet
212	Air outlet	213	Mounting through opening
				214	Centrifugal volute	215	Wind guide section
216	Guide rail	221	HEPA filter screen
				222	Active carbon filter screen	3	Controller
4	Control switch

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 meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes 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 controller 3 is respectively and electrically connected with the cigarette machine main body 1 and the air purification device 2;

the controller 3 is used for controlling the working state of the purifying fan 23 according to the working parameters of the cigarette machine main body 1.

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 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, when the air purification device 2 is started, the controller 3 obtains the operating parameters of the cigarette maker main body 1, and controls the operating state of the purification fan 23 according to the operating parameters, so that the operating state of the air purification device 2 is matched with the cigarette maker main body 1, thereby avoiding the occurrence of the conditions of smoke leakage and the like of the cigarette maker main body 1, and improving the effect of oil smoke absorption of the cigarette maker main body 1. Specifically, the air volume of the air purification device 2 and the air speed at the air outlet can be changed by controlling the rotating speed of the purification fan 23, so that the efficiency of the range hood for absorbing oil smoke of the main range hood is not affected when the air purification device 2 is in different circulation modes and blowing air supply modes, and the effect of the range hood body 1 for absorbing oil smoke is improved.

Optionally, the working parameters include air volume information of the cigarette machine main body 1, and when the air purification device 2 is started, the controller 3 acquires the air volume information of the cigarette machine main body 1, and controls the working state of the purification fan 23 based on the air volume information.

Wherein, the amount of wind information of cigarette machine main part 1 can be the amount of wind information of the air intake of cigarette machine main part 1 or the amount of wind information of air outlet, through the operating condition of amount of wind information control purification fan 23, for example control purification fan's rotational speed to the amount of wind when controlling air purification device 2's start-up, so that the operating condition of air purification device 2 matches with cigarette machine main part 1, and then avoids appearing the condition such as cigarette machine main part 1 hourglass cigarette, improves the effect that cigarette machine main part 1 inhales the oil smoke. Specifically, the air volume information of the cigarette machine main body 1 can be detected through the air volume sensor, or the corresponding air volume information can be determined through the current gear information of the cigarette machine main body 1.

Optionally, in an embodiment, the air volume information includes current gear information of the cigarette maker body 1, and the controller 2 controls the operating state of the purifying fan 23 based on the current gear information.

In this embodiment, when the air purification device 2 is started, the controller 3 acquires the current gear information of the cigarette machine main body 1, and controls the working state of the purification fan 23 based on the current gear information, so as to accurately control the purification fan according to the current gear information, avoid the conditions of smoke leakage and the like of the cigarette machine main body 1, and further improve the effect of oil smoke absorption of the cigarette machine main body 1.

However, the design is not limited thereto, and in other embodiments, the controller 3 determines a target starting rotation speed of the cleaning fan 23 based on a mapping relationship between preset gear information and a rotation speed and the current gear information, and controls the cleaning fan 23 based on the target starting rotation speed.

In this embodiment, the range hood prestores a mapping relationship between preset gear information and a rotation speed, when the air purification device 2 is started, the controller 3 acquires current gear information of the range hood main body 1 and the mapping relationship, determines a target starting rotation speed of the purification fan 23 according to the current gear information and the mapping relationship, and controls the purification fan 23 based on the target starting rotation speed, so as to improve accuracy of rotation speed control on the purification fan 23, change an air volume of the air purification device 2 and an air speed at an air outlet, achieve that the efficiency of oil smoke absorption of the main hood is not affected when the air purification device 2 is in different circulation modes and blowing air supply modes, and further improve an oil smoke absorption effect of the range hood main body 1.

For example, the preset gear information of the cigarette maker body 1 may include 1 gear, 2 gears, 3 gears, stir-fry gears, and the like. The maximum rotation speed of the air cleaning device 2 is V, and the corresponding maximum air volume is X.

If the current gear information is 0, the cigarette making machine main body 1 is in a stop state at the moment, and the air purification device 2 does not affect the cigarette making machine main body 1, so that the corresponding target starting rotating speed can be V, and after the purification fan 23 is controlled based on the target starting rotating speed, the air volume of the air purification device 2 is the maximum air volume X, so that air circulation in a kitchen can be performed as soon as possible, and the air quality in the kitchen can be improved.

If the current gear information is 1, the cigarette maker body 1 is in a low gear operation state at this time, so that the corresponding target starting rotation speed may be yV, and after the purification fan 23 is controlled based on the target starting rotation speed, the air volume of the air purification device 2 is yX.

If the current gear information is 2, the cigarette maker body 1 is in the middle gear operation state at this time, so that the corresponding target starting rotation speed may be 2yV, and after the purification fan 23 is controlled based on the target starting rotation speed, the air volume of the air purification device 2 is 2 yX.

If the current gear information is 3, the cigarette maker body 1 is in a high-gear operation state at this time, and therefore, the corresponding target start-up rotation speed may be 3yV, and after the purification fan 23 is controlled based on the target start-up rotation speed, the air volume of the air purification device 2 is 3 yX.

If the current gear information is the stir-fry gear, at this time, the corresponding target starting rotation speed may be 4yV, and after the purification fan 23 is controlled based on the target starting rotation speed, the air volume of the air purification device 2 is 4 yX.

Wherein y is a constant, y can be set to 0.15-0.22 to make 4y less than 1, and the maximum air volume X can be set to 0-1000 m³The purified air volume is preferably 100-500 m³H purified air volume;

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.

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 ventilator of the smoke machine main body 1 and the purification ventilator of the air purification device 2 in a wireless manner, and particularly, in the technical scheme that the air purification device 2 is movable relative to the smoke machine main body 1, the controller 3 is usually in wireless communication connection with the purification ventilator of the air purification device 2.

Optionally, referring to fig. 2, the first soot sensor 4 is disposed at the air inlet 111 of the air purification apparatus 2, so that the first soot sensor 4 is used to monitor the soot concentration of the air purification apparatus 2 before filtering, thereby facilitating sensing of escaping diffusion of cooking soot by the first soot sensor 4 and timely determining whether the filter of the air purification apparatus 2 is out of service.

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 a dual-burner kitchen range is used below the range hood, 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 the two 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 4 is further included, the control switch 4 is used for controlling a purifying fan 23 of the air purifying device 2, and the control switch 4 is usually arranged on the smoke collecting 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 4 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; therefore, the air outlet direction can be changed to meet more air outlet requirements of the air outlet 112 for users, for example, the requirements of users with different heights for direct blowing or non-direct blowing are met.

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 guiding wind, 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 guiding wind; 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 wind resistance generated by the wind guide vane 100 is larger as the included angle between the wind guide vane 100 and the horizontal plane is closer to-90 ° or 90 °.

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 221 (high efficiency air filter) and an activated carbon filter 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 can be 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 port 113 is connected to the purge 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 provided in the purification housing 21 in a drawable manner; it will be appreciated that removal cleaning or replacement of the filter element 22 can be more easily performed by means of pulling. 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 housing 21 being 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 wind guiding section 215 away from the centrifugal volute 214 is provided with the wind 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, when the air purification device is started, the working parameters of the cigarette machine main body are obtained; and

and S120, controlling the working state of the purification fan based on the working parameters.

In this embodiment, when the air purification device starts, the operating parameters of the range hood main body are obtained through the controller, and the operating state of the purification fan is controlled according to the operating parameters, so that the operating state of the air purification device is matched with the range hood main body, the conditions of smoke leakage and the like of the range hood main body are avoided, and the effect of absorbing oil smoke by the range hood main body is improved. Specifically, the rotating speed of the purifying fan can be controlled, so that the air quantity of the air purifying device and the air speed at the air outlet are changed, the efficiency of oil smoke suction of the main range hood is not influenced when the air purifying device is in different circulation modes and blowing air supply modes, and the oil smoke suction effect of the range hood main body is improved.

Optionally, in an embodiment, the operating parameter includes air volume information of the cigarette maker main body, and the step S120 includes:

and S101, controlling the working state of the purification fan based on the air volume information.

In this embodiment, the amount of wind information of cigarette machine main part can be the amount of wind information of the air intake of cigarette machine main part or the amount of wind information of air outlet, after obtaining the amount of wind information, through the operating condition of amount of wind information control purification fan, for example, control purification fan's rotational speed, with the amount of wind when controlling air purification device's start, thereby change air purification device's the amount of wind and the wind speed of air outlet department, so that air purification device's operating condition and cigarette machine main part match, and then avoid the condition such as cigarette machine main part hourglass cigarette appearing, improve the effect of the oil absorption cigarette of cigarette machine main part. Specifically, the air volume information of the cigarette machine main body can be detected through the air volume sensor, or the corresponding air volume information can be determined through the current gear information of the cigarette machine main body.

Optionally, in another embodiment, the air volume information includes current gear information of the cigarette maker main body, and S101 includes:

and S102, controlling the working state of the purification fan based on the current gear information.

In this embodiment, when air purification device starts, the current gear information of cigarette machine main part is acquireed to the controller, and based on current gear information control purification fan's operating condition to accurately control purification fan according to current gear information, thereby change air purification device's the amount of wind and the wind speed of air outlet department, so that air purification device's the amount of wind and the wind speed of air outlet department and the operating condition looks adaptation of cigarette machine main part avoid appearing the condition such as cigarette machine main part leaks the cigarette, further improve the effect of cigarette machine main part oil absorption cigarette.

It can be understood that the corresponding relationship between the gear information and the air volume information may be stored in advance, the air volume information corresponding to the current gear information is determined according to the corresponding relationship, and the purification fan is controlled according to the air volume information.

Optionally, in another embodiment, S102 includes:

s201, determining a target starting rotating speed of the purifying fan based on a mapping relation between preset gear information and rotating speed and the current gear information; and

and S202, controlling the purification fan based on the target starting rotating speed.

In this embodiment, the range hood may pre-store a mapping relationship between preset gear information and a rotation speed, when the air purification device is started, obtain current gear information of the range hood main body and the mapping relationship, determine a target starting rotation speed of the purification fan corresponding to the mapping relationship according to the current gear information, and control the purification fan based on the target starting rotation speed, so as to improve accuracy of performing rotation speed control on the purification fan, thereby changing an air volume of the air purification device and an air speed at the air outlet, so that the air volume of the air purification device and the air speed at the air outlet are adapted to a working state of the range hood main body, so as to achieve that the efficiency of oil smoke absorption of the main range hood is not affected when the air purification device is in different circulation modes and blowing modes, and further improve an oil smoke absorption effect of the range hood main body.

According to the control method of the range hood provided by the embodiment, when the air purification device is started, the working parameters of the range hood main body are acquired; and then controlling the working state of the purifying fan based on the working parameters so as to enable the working state of the air purifying device to be matched with the range hood main body, thereby changing the air quantity of the air purifying device and the air speed at the air outlet, realizing that the efficiency of the range hood for absorbing oil smoke is not influenced when the air purifying device is in different circulation modes and blowing air supply modes, avoiding the conditions of smoke leakage and the like of the range hood main body, and improving the effect of the range hood main body for absorbing oil smoke.

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 the operating parameters include air volume information of the range hood body, and when the air purification device is started, the controller acquires the air volume information of the range hood body and controls the operating state of the purification fan based on the air volume information.

3. The range hood according to claim 2, wherein the air volume information includes current gear information of the range hood body, and the controller controls the operating state of the purification fan based on the current gear information.

4. The range hood of claim 3, wherein the controller determines a target start-up rotation speed of the purge fan based on a mapping relationship between preset gear information and rotation speed and the current gear information, and controls the purge fan based on the target start-up rotation speed.

5. The range hood according to any one of claims 1 to 4, wherein the range hood main body comprises a decorative cover and a smoke collecting cover arranged below the decorative cover, and a range hood duct is arranged in the decorative cover.

6. The range hood of claim 5 wherein the purge air channel is disposed within the trim cover and is not in communication with the range hood air channel.

7. The range hood of claim 5, wherein the air inlet is disposed on a side of the decorative cover; alternatively, the first and second electrodes may be,

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

8. The range hood of claim 5, wherein the air outlet is disposed on the front surface of the decorative cover; alternatively, the first and second electrodes may be,

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

9. The range hood of claim 5 wherein the trim cover defines a filter mounting opening, and wherein the filter is removably disposed in the clean air duct through the filter mounting opening.

10. The range hood of claim 9, wherein the air purification device further comprises a purification housing disposed within the trim cover, the purification air duct being at least partially defined by the purification housing, the purification housing having an air inlet opening in communication with the air inlet and an air outlet opening in communication with the air outlet;

11. A control method of a range hood, which is applied to the range hood of any one of claims 1 to 12, the control method of the range hood comprising the steps of:

12. The control method of the range hood according to claim 11, wherein the operating parameter includes air volume information of the range hood body, and the step of controlling the operating state of the purification fan based on the operating parameter includes:

13. The control method of the range hood according to claim 12, wherein the air volume information includes current gear information of the range hood body, and the step of controlling the operating state of the purification fan based on the air volume information includes:

14. The control method of the range hood according to claim 13, wherein the step of controlling the operating state of the purification fan based on the current gear information includes:

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 11 to 14.