CN114263947A

CN114263947A - Range hood, control method thereof and computer-readable storage medium

Info

Publication number: CN114263947A
Application number: CN202010977932.7A
Authority: CN
Inventors: 刘智; 梁泽锋; 苏剑权; 何雄明; 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: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-04-01
Anticipated expiration: 2040-09-16
Also published as: CN114263947B

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 arranged on the cigarette machine main body and is provided with a purification air channel and an air outlet communicated with the purification air channel; the direction acquiring device is used for acquiring the air outlet direction of the air outlet; the temperature acquisition device is used for acquiring the ambient temperature of the range hood; and the controller is electrically connected with the direction acquisition device and the temperature acquisition device and is used for controlling the air output of the air purification device according to the air output direction and the ambient temperature. The technical scheme of the invention can realize different functions of the air purification device and meet different requirements of users.

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.

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 air purification device has a single function, and is difficult to meet different requirements of customers.

Disclosure of Invention

The invention mainly aims to provide a range hood, which aims to realize different functions of an air purification device and meet different requirements of users.

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

a cigarette machine main body;

the air purification device is arranged on the cigarette machine main body and is provided with a purification air channel and an air outlet communicated with the purification air channel;

the direction acquiring device is used for acquiring the air outlet direction of the air outlet;

the temperature acquisition device is used for acquiring the ambient temperature of the range hood; and

and the controller is electrically connected with the direction acquisition device and the temperature acquisition device and is used for controlling the air output of the air purification device according to the air outlet direction and the ambient temperature.

The air outlet quantity of the air purification device is controlled through the controller according to the air outlet direction and the ambient temperature, different functions of the air purification device can be achieved, and then different requirements of users are met.

Optionally, the air outlet is located on the front side of the air purification device, the air outlet is rotatably provided with a wind guide blade extending in the transverse direction, and the direction acquisition device includes a position sensor for detecting a rotation position of the wind guide blade;

the controller is electrically connected with the position sensor to acquire the air outlet direction through the rotating position.

Therefore, the range hood has the function of acquiring the ambient temperature, the air outlet direction can be automatically acquired, and the intelligence of the range hood is improved.

Optionally, the direction obtaining device includes a direction input device disposed in the range hood, and the direction input device is used for a user to input the air outlet direction.

And protecting the other mode of obtaining the air outlet direction.

Optionally, the temperature acquiring device includes a temperature sensor disposed on the range hood, and the controller acquires the ambient temperature through the temperature sensor.

Therefore, the range hood has the function of acquiring the ambient temperature.

Optionally, the temperature obtaining device includes a communication receiver disposed on the range hood, and the controller is in communication connection with an external temperature detection terminal through the communication receiver to receive the ambient temperature sent by the external temperature detection terminal.

Therefore, a temperature sensor is not required to be arranged on the range hood, and the cost of the range hood is reduced.

Optionally, it is determined that the air outlet direction is forward or downward in an inclined manner, and the controller controls the air outlet amount of the air purification device according to the ambient temperature.

The air output quantity of the air purification device is controlled by the controller according to the ambient temperature, so that the air output quantity can meet the requirement of a user at the corresponding ambient temperature, and the user feels more comfortable.

Optionally, when the air outlet direction is forward or downward in an inclined manner, it is determined that the ambient temperature increases, and the controller controls the air outlet amount of the air purification device to increase.

When the increase of the ambient temperature makes the user feel untimely because of overheating, the air output of the air purification device is increased, the user feels cooler, and the user obtains more comfortable body feeling.

Optionally, the air purifying device is provided with a purifying fan for driving the air in the purifying air duct to flow to the air outlet;

the controller controls the rotating speed of the purifying fan to increase so as to increase the air output of the air purifying device; alternatively, the first and second electrodes may be,

the purification fan is equipped with a plurality ofly, the controller is through control purification fan's start-up quantity increases to the increase air purification device's air output.

Two modes of protecting and increasing the air output of the air purification device are provided.

Optionally, when the air outlet direction is forward or inclined downward, the temperature interval where the ambient temperature is located is determined, and the controller controls the air purification device to outlet air at the corresponding air volume gear.

Therefore, the air output change times of the air purification device can be reduced, and the control process of the air output of the air purification device is simpler.

Optionally, it is determined that the air outlet direction is upward or obliquely upward, and the controller controls the air purification device to outlet air with the maximum air volume.

So, air purification device is upwards or the slope wind-out wind-force that faces upwards is stronger, and the air supply distance is far away to can promote the downward flow with the oil smoke of the first half in kitchen space, come in order to incorporate air cycle purification, and then can further reduce the oil smoke in the kitchen, be favorable to the improvement of the whole air quality in kitchen space.

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

acquiring the air outlet direction of an air purification device of a range hood and the ambient temperature of the range hood;

and controlling the air output of the air purification device according to the air output direction and the ambient temperature.

So, can realize the different functions of air purification device, and then satisfy user's different demands.

Optionally, the step of controlling the air output of the air purification device according to the air output direction and the ambient temperature includes:

determining that the air outlet direction is forward or downward in an inclined mode;

and controlling the air output of the air purification device according to the ambient temperature.

So, can make air output can accord with the demand of user under corresponding ambient temperature to make user's body feel more comfortable.

Optionally, the step of controlling the air output of the air purification device according to the ambient temperature includes:

determining that the ambient temperature is increasing;

and controlling the air output of the air purification device to increase.

Optionally, the air purification device has a plurality of air volume gears, and different air volume gears correspond to different temperature intervals;

the step of controlling the air output of the air purification device according to the ambient temperature specifically comprises:

determining a temperature interval in which the environment temperature is;

and controlling the air purification device to exhaust air at the corresponding air quantity gear.

determining that the air outlet direction is upward or obliquely upward;

and controlling the air purification device to exhaust air with the maximum air quantity.

The invention further provides a computer-readable storage medium, which is characterized in that 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 a processor.

According to the technical scheme, the air outlet direction of the air outlet can be acquired through the direction acquisition device, the environment temperature of the range hood can be acquired through the temperature acquisition device, and meanwhile the air outlet quantity of the air purification device is adjustable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram 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 diagram showing the connection of some functional components of the range hood of FIG. 1;

fig. 6 is a schematic structural view of the air cleaning device of the range hood in fig. 1, in which the air guide blade is in a state of being inclined and extended forward and upward;

FIG. 7 is an enlarged schematic view at B of FIG. 6;

fig. 8 is a schematic structural view between the wind guide blade and the rotating wheel of the air purification apparatus of fig. 6;

fig. 9 is a schematic structural view of the air purifying device in fig. 1, wherein the air guiding blades are in a forward and downward inclined extending state;

fig. 10 is a flowchart illustrating steps of a control method of a range hood according to an 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 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 5, in an embodiment of the present invention, the range hood includes:

a cigarette machine main body 1;

the air purification device 2 is arranged on the cigarette machine main body 1 and is provided with a purification air channel and an air outlet 202 communicated with the purification air channel;

a direction obtaining device 5, configured to obtain an air outlet direction of the air outlet 202;

the temperature acquisition device 4 is used for acquiring the ambient temperature of the range hood; and

and the controller 3 is electrically connected with the direction acquisition device 5 and the temperature acquisition device 4 and is used for controlling the air output of the air purification device 2 according to the air outlet direction and the ambient temperature.

It can be understood that the smoke exhaust duct is arranged in the smoke exhaust machine main body 1, the smoke inlet of the smoke exhaust duct is communicated with the indoor and is usually suspended above the kitchen range so as to suck the smoke into the smoke exhaust 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.

For the air purification device 2, the purification air channel and the oil smoke absorption air channel are independent, of course, an air inlet 201 communicated with the purification air channel is further arranged, and a filtering piece 22 is arranged in the purification air channel. The air cleaning device 2 further has a cleaning fan 21 for driving the air in the cleaning air duct to flow to the air outlet 202. The air intake 201 with the air outlet 202 all communicates indoorly, air intake 201 is used for inhaling the indoor air in kitchen, filters 22 and is used for filtering the purification to the air of inhaling, air outlet 202 is used for discharging back the kitchen indoor air after filtering the purification.

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 addition, according to the technical scheme of the invention, the air outlet direction of the air outlet 202 can be acquired through the direction acquisition device 5, the environment temperature of the range hood can be acquired through the temperature acquisition device 4, and meanwhile, the air outlet quantity of the air purification device 2 can be adjusted, so that when the air outlet direction of the air outlet 202 is different, the functions of the air outlet are different, and meanwhile, a user has different air outlet quantity requirements on the air purification device 2 at different environment temperatures, therefore, the air outlet quantity of the air purification device 2 is controlled through the controller 3 according to the air outlet direction and the environment temperature, so that different functions of the air purification device 2 can be realized, and further different requirements of the user are met.

Alternatively, the cigarette maker body 1 and the air cleaning device 2 may share one controller 3, the controller 3 being typically 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 typically in communication with the air cleaning device 2 by wire; of course, the controller 3 may also be in communication with the air purification apparatus 2 in a wireless manner. However, the design is not limited thereto, and in other embodiments, an independent controller 3 may be provided corresponding to the cigarette maker body 1, and another independent controller 3 may be provided corresponding to the air purifying device 2, so that the controller 3 for controlling the air purifying device 2 is installed on the air purifying device 2.

Further, in the process that the controller 3 controls the air output of the air purification device 2 according to the air output direction and the ambient temperature, when the air output direction is upward or inclined upward, the controller 3 controls the air purification device 2 to output air with the maximum air output; therefore, the upward or inclined upward air outlet wind power of the air purification device 2 is stronger, and the air supply distance is longer, so that the oil smoke at the upper half part of the kitchen space can be pushed to flow downwards to be brought into the air circulation purification, the oil smoke in the kitchen can be further reduced, and the improvement of the whole air quality of the kitchen space is facilitated; in particular, the upper half of the kitchen space is often subject to soot accumulation due to the thermal plume action of the soot.

Further, in the process that the controller 3 controls the air output of the air purification device 2 according to the air output direction and the ambient temperature, when the air output direction is forward or inclined downward, the controller 3 controls the air output of the air purification device 2 according to the ambient temperature. It can be understood that air-out direction is when down forward or slope, and air purification device 2's air-out mainly acts on the user, and the user has different air output demands to air purification device 2 under different ambient temperature, so, according to through controller 3 ambient temperature controls air purification device 2's air output, can make the air output can accord with the user demand under corresponding ambient temperature to make user's body feel more comfortable.

Further, when the air-out direction is forward or when inclining downwards, in the process of controlling the air output of the air purification device 2 at the controller 3 according to the ambient temperature, when the ambient temperature increases, the air output of the air purification device 2 is controlled to increase by the controller 3.

It will be appreciated that the range hood is typically exposed to an increasing ambient temperature during cooking. In particular, in summer, the increase in the ambient temperature makes the user feel uncomfortable due to overheating, and at this time, the increase in the air output amount of the air purification apparatus 2 makes the user feel cooler, thereby providing a more comfortable feeling to the user.

However, the design is not limited to this, in other embodiments, when the air purification device 2 is further provided with an electric auxiliary device to generate warm air, for winter, the ambient temperature is very low at the beginning of cooking, at this time, the user needs the air purification device 2 to provide a larger amount of warm air, and the ambient temperature is continuously increased along with the progress of the cooking activity, so that the user's demand for the amount of warm air is reduced, and at this time, the controller 3 can control the amount of air output of the air purification device 2 to be reduced, so as to save energy.

Further, the rotation speed of the purification fan 21 is adjustable, and it can be understood that the larger the rotation speed of the purification fan 21 is, the larger the air volume that can be generated by the purification fan is. Therefore, the controller 3 can increase the air output of the air cleaning device 2 by controlling the rotation speed of the cleaning fan 21 to increase. In particular, the increase in the rotation speed of the purification fan 21 not only increases the air output but also increases the air outlet speed of the air purification apparatus 2, so that the user experiences a cooler feeling.

However, the design is not limited to this, in some other embodiments, when there are a plurality of purification fans 21, the controller 3 may also increase the air output of the air purification device 2 by controlling the starting number of the purification fans 21 to increase; it can be understood that, no matter whether the plurality of purification fans 21 are arranged side by side or sequentially arranged in the extending direction of the purification air duct, the larger the number of the purification fans 21 is started, the larger the amount of air generated by the purification fans can be; of course, the change of the air output can be relatively more continuously adjustable by changing the air output through the rotation speed adjustment of the purification fan 21.

In addition, in other embodiments, a plurality of purification fans 21 with adjustable rotation speed may be further disposed in the purification air duct, and the controller 3 changes the air output of the air purification device 2 by simultaneously changing the number of the purification fans 21 and the rotation speed of the purification fans 21.

Further, the air purification device 2 has a plurality of air volume gears (it can be understood that different air volume gears correspond to different air volumes), and different air volume gears correspond to different temperature intervals. When the air outlet direction is forward or downward in an inclined manner, in the process that the controller 3 controls the air outlet quantity of the air purification device 2 according to the ambient temperature, the controller 3 firstly determines the temperature range of the ambient temperature and then controls the air purification device 2 to outlet air at the corresponding air quantity gear; therefore, the air output change times of the air purification device 2 can be reduced, and the control process of the air output of the air purification device 2 is simpler. Optionally, different air volume gears correspond to different rotating speeds of the purification fan 21; or, different air volume gears correspond to different starting numbers of the purification fans 21. Of course, the air volume gear corresponding to the higher temperature interval has a larger rotation speed of the corresponding purification fan 21, or the number of the purification fans 21 started is larger.

In one embodiment, when the ambient temperature is within a temperature range [24 ℃, 28 ℃), the corresponding air volume gear is the first gear, and the first gear air volume is 0.5 times of the maximum air volume; when the ambient temperature is in a temperature range of [28 ℃, 30 ℃), the corresponding air quantity gear is a second gear, and the second gear air quantity is 0.8 times of the maximum air quantity; and when the ambient temperature is in a temperature range of [30 ℃ and + ∞ ], the corresponding air quantity gear is third gear, and the third gear air quantity is the maximum air quantity.

Further, the temperature obtaining device 4 includes a temperature sensor 41 disposed on the range hood and electrically connected to the controller 3, and the controller 3 obtains the ambient temperature through the temperature sensor 41; that is, the range hood itself has a function of acquiring the ambient temperature, so that even if the network signal is lacked, the controller 3 can also acquire the ambient temperature in real time, thereby controlling the air output of the air purification device 2 according to the ambient temperature. Alternatively, the temperature sensor 41 is provided in the body of the cigarette maker, and the cigarette maker main body 1 is generally larger in volume and has more and more convenient locations and spaces for installing the temperature sensor 41 than the air cleaning device 2; of course, in other embodiments, the temperature sensor 41 may also be disposed on the air purification apparatus 2.

However, the design is not limited to this, in other embodiments, the temperature obtaining device 4 may further include a communication receiver disposed on the range hood, and the controller 3 is in communication connection with the external temperature detection terminal through the communication receiver to receive the ambient temperature sent by the external temperature detection terminal, so that the controller 3 can also obtain the ambient temperature. In this embodiment, the external temperature detection terminal may be an intelligent thermometer with a communication function, may also be a mobile terminal (for example, but not limited to, a mobile phone, a tablet computer, etc.) integrated with a temperature sensor, and may also be other household appliances (for example, but not limited to, a disinfection cabinet, a refrigerator, etc.) with a communication function and integrated with an external temperature sensor. Optionally, the communication receiver is a wireless communication receiver, which may be but not limited to be in communication connection with an external temperature detection terminal in a WIFI, bluetooth, or other manners.

Further, the air outlet 202 is located on the front surface of the air purification apparatus 2. It can be understood that a user usually stands in front of the range, that is, stands in front of the range hood for cooking, and the air outlet 202 is disposed on the front surface of the air purification device 2, so that the outlet air of the air purification device 2 can be directly applied to the user when the air outlet 202 is inclined forward or downward to provide the outlet air. Of course, in other embodiments, the air outlet 202 may be located at other positions of the air purification apparatus 2, such as a top surface or a side surface, and it is understood that in this case, although the outlet air of the air purification apparatus 2 is difficult to directly act on the user, the outlet air can also act on the user to a certain extent in consideration of the diffusivity of the outlet air.

For the technical solution that the air outlet 202 is located on the front surface of the air purification apparatus 2, optionally, the air outlet 202 may be rotatably provided with a wind guide blade 23 extending along the transverse direction, so that the air outlet direction of the air outlet 202 is adjustable, and thus, when the air needs to be directly applied to the user, the air outlet is rotated to a position extending obliquely forward and downward or horizontally forward (see fig. 9); when the air in the kitchen needs to be circularly purified, the air guide blades 23 are rotated to the position extending obliquely forward and upward (see fig. 6) so that the air outlet 202 obliquely blows air forward and upward, and therefore, the oil smoke at the upper half part of the kitchen space can be pushed to flow downward to be brought into the air circulation purification, the oil smoke in the kitchen can be further reduced, and the improvement of the whole air quality of the kitchen space is facilitated; in particular, the upper half of the kitchen space is often subject to soot accumulation due to the thermal plume action of the soot.

Further, the direction acquisition device 5 includes a position sensor for detecting the rotational position of the air guide blade 23; the controller 3 is electrically connected with the position sensor to acquire the air outlet direction through the rotating position, so that the range hood has the function of acquiring the ambient temperature and can automatically acquire the air outlet direction, and the intelligence of the range hood is improved. It can be understood that the air guiding blade 23 can have different air outlet directions when in different rotation positions. Specifically, when the air guide vane 23 extends obliquely forward and upward, the air outlet 202 outputs air obliquely forward and upward; when the air guide blade 23 extends obliquely forward and downward or horizontally forward, the air outlet 202 discharges air obliquely forward and downward or horizontally forward. Optionally, the position sensor is a hall sensor, and the hall sensor can acquire any rotating position of the air guide blade 23; however, the design is not limited thereto, and in other embodiments, the position sensor may be a tact switch or a laser position sensor.

However, the design is not limited thereto, in other embodiments, the direction obtaining device 5 further includes a direction input device disposed in the range hood, and the direction input device is used for a user to input the air outlet direction; thus, the air outlet direction can be obtained; it can be understood that, in this case, the user is required to judge the air outlet direction, and the air outlet direction obtained by the judgment is input through the direction input device, and the input mode may be a selection mode, that is, the direction input device provides a specific possible input direction for the user to select, and of course, the input mode may also be a direct writing mode. Alternatively, the direction input device is configured as an input key, a touch screen, a voice input device, or the like.

Optionally, referring to fig. 7, an upper limiting member 235 located on the upper side of the wind-guiding blade 23 is disposed on the wind outlet 202, and the wind-guiding blade 23 rotates upward to abut against the upper limiting member 235. It will be appreciated that the upper limiting member 235 is provided to limit the infinite rotation of the air guiding blade 23 upward, for example, when the upper limiting member 235 is located obliquely upward on the inner side of the rotation axis of the air guiding blade 23, it can limit the maximum inclination angle of the air guiding blade 23 extending obliquely downward forward, and when the upper limiting member is located obliquely upward on the outer side of the rotation axis of the air guiding blade 23, it can limit the maximum inclination angle of the air guiding blade 23 extending obliquely upward forward. In this embodiment, the upper limiting member 235 may be configured as a limiting column; in other embodiments, the upper limiting member 235 may be configured as a limiting bump or other shapes as long as it can interfere with the rotation path of the wind guiding blade 23 to limit the rotation of the wind guiding blade 23. Similarly, the air outlet 202202 is further provided with a lower stopper 236 located below the air guiding vane 23, and the air guiding vane 23 rotates downward to abut against the lower stopper 236. It will be appreciated that the lower limiting member 236 is provided to limit the infinite downward rotation of the inducer 23, for example, when the lower limiting member 236 is positioned obliquely below the inner side of the axis of rotation of the inducer 23, it limits the maximum angle of inclination of the inducer 23 extending obliquely upward and, when the lower limiting member is positioned obliquely below the outer side of the axis of rotation of the inducer 23, it limits the maximum angle of inclination of the inducer 23 extending obliquely downward and forward. Of course, in some other embodiments, the air outlet 202 may be provided with only one of the upper stopper 235 and the lower stopper 236. According to the technical scheme, the upper limiting piece 235 and/or the lower limiting piece 236 are arranged, so that the air outlet can be prevented from being influenced by the fact that the air guide blades 23 are touched by mistake and rotate upwards or downwards to close the air outlet 202 in the air guide process.

Optionally, a plurality of wind guide blades 23 are arranged at intervals in the vertical direction, the plurality of wind guide blades 23 include a driving blade 231 and at least one driven blade 232, and the driven blades 232 are connected to the driving blade 231 through the same connecting rod 233, so that when the driving blade 231 is driven to rotate, all the driven blades 232 can be driven to rotate through the connecting rod 233, so that on one hand, each wind guide blade 23 does not need to be driven, on the other hand, all the wind guide blades 23 can be synchronously rotated, and the wind outlet directions of all the positions of the wind outlet 202 are consistent. Generally, the driving blade 231 and the driven blade 232 are pivotally connected to the air outlet 202 on the same side, and are pivotally connected to the connecting rod 233 on the opposite side. For the solution provided with the connecting rod 233, the upper limiting member 235 and the lower limiting member 236 may be correspondingly disposed on only the upper and lower sides of one wind-guiding blade 23, for example, only the upper and lower sides of the active blade 231, so as to make the structure of the product simpler.

Alternatively, referring to fig. 7 and 8, the driving blade 231 is provided with a rotating shaft rotatably penetrating through the air outlet 202, and a rotating wheel 234 is fixedly arranged on the rotating shaft, so that the driving blade 231 can be driven to rotate by manually rotating the rotating wheel 234. It is understood that the rotating wheel 234 and the rotating shaft do not rotate relatively, but the two can be connected by a spline structure, or a section of the rotating shaft engaged with the rotating wheel 234 is configured as a flat shaft, etc. However, the design is not limited thereto, and in other embodiments, a driving motor may be further provided to actively drive the driving blade 231 to rotate, and particularly, a stepping motor may be provided to drive the driving blade 231 to rotate, so that the rotation angle of the driving blade 231 can be precisely controlled by the stepping motor, and the rotation position of the driving blade 231 can be precisely controlled.

For the solution of providing the rotating wheel 234 to manually drive the driving blade 231, in order to facilitate manual rotation of the rotating wheel 234, optionally, an anti-slip structure is provided on the outer circumference of the rotating wheel 234, and the anti-slip structure may include, but is not limited to, a plurality of anti-slip ribs provided on the outer circumferential surface of the rotating wheel 234 at intervals along the circumferential direction thereof, or anti-slip patterns provided on the outer circumferential surface of the rotating wheel. Optionally, the position sensor is provided on the rotating wheel 234; it will be appreciated that the rotating wheel 234 is typically thicker than the mouth wall of the outlet 202, thereby providing a more stable mounting attachment for the position sensor.

In the present embodiment, referring to fig. 1 to 4, the range hood main body 1 includes a trim cover 11 and a smoke collecting hood 12 provided below the trim cover 11, and the range hood duct is provided inside the trim cover 11. Further, the air purification device 2 is arranged in the decoration cover 11, so that the air purification device 2 is hidden in the decoration cover 11, and the appearance of the range hood is simpler. Without loss of generality, the air outlet 202 is exposed to the front surface of the decoration cover 11, so that the clean air purified by the air purification device 2 can be sent out to the kitchen space. However, the design is not limited thereto, and in other embodiments, the air purification apparatus 2 may also be externally disposed on the decorative cover 11, for example, it may be disposed on the front side of the decorative cover 11 and above the smoke collecting hood 12; the air purification device 2 is arranged outside the decoration cover 11, so that the internal devices (such as the filter piece 22, the purification fan 21 and the like) can be conveniently maintained and disassembled; it can be understood that the air cleaning device 2 disposed outside the decoration cover 11 does not need to be disassembled and assembled to the decoration cover 11 in the process of disassembling the internal components thereof.

Optionally, the temperature sensor 41 is disposed on a side surface of the smoke collecting hood 12 to obtain an ambient temperature of the range hood.

For the technical solution that the air purification device 2 is disposed in the decoration cover 11, optionally, the air outlet 202 is disposed at the lower portion of the decoration cover 11; it can be appreciated that the lower portion of the trim cover 11 is closer to the cook, which is more advantageous for delivering purified clean air to the cook.

Optionally, the air inlet 201 communicated with the purification air duct is exposed at the side surface of the decoration cover 11, so that the oil smoke escaping to the side of the range hood is favorably sucked into the purification air duct to reduce the oil smoke at the side of the range hood; particularly, when a dual-burner kitchen range is used below the range hood, the oil smoke generated during cooking easily escapes from the side of the range hood, and the air inlet 201 exposed at the side of the decorative cover 11 is more beneficial to sucking the oil smoke.

Optionally, two opposite side surfaces of the decorative cover 11 are respectively provided with one air inlet 201, so as to reduce oil smoke on two sides of the range hood. Of course, the air inlet 201 may be provided on only one of the two sides of the trim cover 11. Optionally, an air inlet grille is arranged on the air inlet 201 to prevent hands and other foreign matters from extending into the decoration cover 11.

It is understood that, in this embodiment, the decoration cover 11 is provided with an air return opening 111 corresponding to the air inlet 201, and an air supply opening 112 corresponding to the air outlet 202.

Optionally, two filter elements 22 are provided, and each filter element 22 is disposed near one of the air inlets 201; 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 202, so as to purify and discharge the oil smoke in the air.

Optionally, 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, and needs to be replaced after its life is reached, in order to ensure a good purification capacity of the air purification apparatus 2, and moreover, it is advantageous to remove it for cleaning or washing, either periodically or not, in order to prolong its life.

Optionally, a filter cover 25 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 25 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 comprises a purifying housing 24 disposed in the decorative cover 11, the purifying air duct is at least partially defined by the purifying housing 24, and the air inlet 201 is formed with the purifying housing 24. It can be understood that the provision of the independent purifying housing 24 can more accurately limit the purifying air duct, so as to accurately guide the trend of the purifying air flow and improve the purifying efficiency, and in addition, the purifying housing 24 can more conveniently provide the filter element 22 and the purifying fan 21 with attachment; 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 24 is provided with a mounting opening 203 corresponding to the filter mounting opening 113, and the filter element 22 is detachably connected with the purifying housing 24 through the filter mounting opening 113 and the mounting opening 203.

In this embodiment, the filter cover 25 provided in the filter attachment port 113 is connected to the purge case 24. However, the design is not limited thereto, and in other embodiments, the filter cover 25 may be connected to the decorative cover 11. In addition, in this embodiment, optionally, one side of the filter cover 25 is rotatably connected to the purifying housing 24, and the other side is detachably connected to the purifying housing 24; in this manner, after the filter cover 25 is opened, the filter cover 25 remains attached to the purge housing 24, and the filter cover 25 is prevented from being lost. Further alternatively, the other side of the filter cover 25 can be, but is not limited to, connected to the purification housing 24 by a push-type snap-on switch assembly, so that the filter cover 25 can be conveniently opened and closed by pressing, and the operation is convenient.

Optionally, the filter element 22 is provided in a removable manner in the purification housing 24; it will be appreciated that removal cleaning or replacement of the filter element 22 can be more easily performed by means of pulling.

Optionally, the purification fan 21 is a centrifugal fan, on one hand, the centrifugal fan has large air volume and low noise, so that far air supply can be realized at 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 26 for installing a centrifugal fan is arranged in the purifying housing 24, an air outlet side of the centrifugal volute 26 faces downward and is bent forward to extend an air guiding section 27, and the air outlet 202 is formed at a free end of the air guiding section 27. In this embodiment, the air guide section 27 extending by bending can supply air forward when the axial direction of the centrifugal fan is perpendicular or nearly perpendicular to the fan cover, and at this time, the installation space in the front-back 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, the required front-to-back installation space for the centrifugal fan is large, since the diameter of the centrifugal fan is typically larger than the axial thickness of the centrifugal fan. Optionally, the centrifugal volute 26 includes a volute body and a volute cover that are joined to facilitate installation of the centrifugal fan into the centrifugal volute 26.

The invention also provides a control method of the range hood. The range hood comprises a range hood main body and an air purification device; when the air purification device and the smoke machine main body work in a cooperative mode, most of oil smoke generated in the cooking process is discharged to the outside through an oil smoke suction air channel in the smoke machine main body, 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 purification air channels in the purification modules, 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.

Referring to fig. 10, in an embodiment, the method for controlling a range hood includes the following steps:

s1, acquiring the air outlet direction of an air purification device of the range hood and the ambient temperature of the range hood;

and S2, controlling the air output of the air purification device according to the air output direction and the environment temperature.

According to the technical scheme, the air outlet direction of the air outlet can be acquired, the environment temperature of the range hood is acquired, and the air outlet quantity of the air purification device is adjustable.

Further, the step S2 includes:

step S21, determining that the air outlet direction is upward or obliquely upward;

and step S22, controlling the air purification device to exhaust air with the maximum air volume.

Therefore, the upward or inclined upward air outlet wind power of the air purification device is stronger, and the air supply distance is longer, so that the oil smoke at the upper half part of the kitchen space can be pushed to flow downwards to be brought into the air circulation purification, the oil smoke in the kitchen can be further reduced, and the improvement of the whole air quality of the kitchen space is facilitated; in particular, the upper half of the kitchen space is often subject to soot accumulation due to the thermal plume action of the soot.

Further, the step S2 further includes:

step S23, determining that the air outlet direction is forward or downward in an inclined way;

and step S24, controlling the air output of the air purification device according to the ambient temperature.

It can be understood that air-out direction is when down forward or slope, and air purification device's air-out mainly acts on the user, and the user has different air output demands to air purification device under the ambient temperature of difference, so, according to ambient temperature, control air purification device's air output can make the air output can accord with the user demand under corresponding ambient temperature to make user's body feel more comfortable.

It should be noted that, there is no precedence relationship between the step S21 and the step S23, and the result is determined according to the acquired air outlet direction.

Further, the step S24 includes:

step S241, determining that the ambient temperature increases;

and step S242, controlling the air output of the air purification device to increase.

It will be appreciated that the range hood is typically exposed to an increasing ambient temperature during cooking. In particular, in summer, the increase in the ambient temperature may cause the user to feel uncomfortable due to overheating, and at this time, the increase in the air output amount of the air purification apparatus may cause the user to feel cooler, thereby providing a more comfortable feeling to the user.

However, the design is not limited to this, in other embodiments, when the air purification device is further provided with an electric auxiliary heating device to generate warm air, for winter, the ambient temperature is very low at the beginning of cooking, at this time, the user needs the air purification device to provide a large amount of warm air, and the ambient temperature is continuously increased along with the progress of the cooking activity, so that the user's demand for the amount of warm air is reduced, and at this time, the controller can control the amount of air output of the air purification device to be reduced, so as to save energy.

In one embodiment, the air purification device is provided with a plurality of air volume gears, and different air volume gears correspond to different temperature intervals;

the step S24 specifically includes:

step S2401, determining a temperature interval where the environment temperature is located;

and S2402, controlling the air purifying device to exhaust air at a corresponding air quantity gear.

Therefore, the air output change times of the air purification device can be reduced, and the control process of the air output of the air purification device is simpler. Optionally, different air volume gears correspond to different rotating speeds of the purification fan; or, different air quantity gears correspond to different starting numbers of the purification fans. Of course, the air volume gear corresponding to the higher temperature interval has a larger rotating speed of the corresponding purification fan, or the number of the purification fans started is larger.

For example, when the ambient temperature is in a temperature range [24 ℃, 28 ℃), the corresponding air volume gear is the first gear, and the first gear air volume is 0.5 times of the maximum air volume; when the ambient temperature is in a temperature range of [28 ℃, 30 ℃), the corresponding air quantity gear is a second gear, and the second gear air quantity is 0.8 times of the maximum air quantity; and when the ambient temperature is in a temperature range of [30 ℃ and + ∞ ], the corresponding air quantity gear is third gear, and the third gear air quantity is the maximum air quantity.

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.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A range hood, comprising:

a cigarette machine main body;

2. The range hood according to claim 1, wherein the air outlet is located on a front surface of the air cleaning device, the air outlet is rotatably provided with a wind guiding blade extending in a transverse direction, and the direction acquiring device comprises a position sensor for detecting a rotational position of the wind guiding blade;

3. The range hood of claim 1, wherein the direction obtaining device comprises a direction input device disposed on the range hood, and the direction input device is used for a user to input the air outlet direction.

4. The range hood of claim 1, wherein the temperature acquisition device comprises a temperature sensor disposed on the range hood, and the controller acquires the ambient temperature via the temperature sensor; alternatively, the first and second electrodes may be,

the temperature acquisition device comprises a communication receiver arranged on the range hood, and the controller is in communication connection with an external temperature detection terminal through the communication receiver so as to receive the ambient temperature sent by the external temperature detection terminal.

5. The range hood according to claim 1, wherein the air outlet direction is determined to be forward or downward inclined, and the controller controls the air outlet amount of the air purification device according to the ambient temperature.

6. The range hood according to claim 5, wherein when the air outlet direction is forward or downward inclined, the ambient temperature is determined to increase, and the controller controls the air outlet amount of the air purification device to increase.

7. The range hood of claim 6, wherein the air cleaning device has a cleaning fan for driving the air in the cleaning air duct to flow to the air outlet;

8. The range hood according to claim 6, wherein when the air-out direction is forward or downward inclined, the temperature range of the ambient temperature is determined, and the controller controls the air-out device to output air at a corresponding air volume gear.

9. The range hood according to any one of claims 1 to 8, wherein the controller controls the air purifying device to output air with a maximum air volume when the air output direction is determined to be upward or obliquely upward.

10. A control method of a range hood is characterized by comprising the following steps:

11. The control method of the range hood according to claim 10, wherein the step of controlling the air output of the air purifying device according to the air output direction and the ambient temperature comprises:

12. The control method of the range hood according to claim 11, wherein the step of controlling the air output of the air purifying device according to the ambient temperature comprises:

determining that the ambient temperature is increasing;

and controlling the air output of the air purification device to increase.

13. The control method of the range hood according to claim 12, wherein the air purifying device has a plurality of air volume gears, and different air volume gears correspond to different temperature ranges;

determining a temperature interval in which the environment temperature is;

14. The control method of the range hood according to any one of claims 10 to 13, wherein the step of controlling the air output of the air purifying device according to the air output direction and the ambient temperature comprises:

determining that the air outlet direction is upward or obliquely upward;

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.