CN117387112B

CN117387112B - Filter control system and method for smoke exhaust ventilator, electronic equipment and storage medium

Info

Publication number: CN117387112B
Application number: CN202311689943.5A
Authority: CN
Inventors: 任勇; 岑振宙; 李�杰; 覃粤
Original assignee: Foshan Jingwei Technology Co ltd
Current assignee: Foshan Jingwei Technology Co ltd
Priority date: 2023-12-11
Filing date: 2023-12-11
Publication date: 2024-02-13
Anticipated expiration: 2043-12-11
Also published as: CN117387112A

Abstract

The application provides a filtration control system, a filtration control method, electronic equipment and a storage medium of a smoke ventilator, which relate to the technical field of smoke ventilators and are characterized in that: the sensor is contacted with the filter screen and is used for detecting stress distribution information of the filter screen in a second direction which is perpendicular to the first direction in the horizontal direction; the wind direction regulator is arranged between the filter screen and the fan and covers the filter screen, at least two rotation regulating parts are arranged along the second direction, each rotation regulating part at least comprises a rotating shaft and fan blades which are arranged along the first direction in an extending way, and the fan blades are arranged on two sides of the rotating shaft; a controller, comprising: the acquisition module is used for acquiring stress distribution information; and the generating module is used for generating rotation angle information corresponding to the rotation adjusting parts respectively according to the stress distribution information. The filtering control system and method for the smoke exhaust ventilator, the electronic equipment and the storage medium have the advantages of improving the smoke filtering capacity and prolonging the cleaning period.

Description

Filter control system and method for smoke exhaust ventilator, electronic equipment and storage medium

Technical Field

The application relates to the technical field of range hoods, in particular to a filtering control system and method of a range hood, electronic equipment and a storage medium.

Background

During cooking, the food material and oil will evaporate at high temperature and then condense in air to form soot, which is generally a mixed particulate matter of liquid-solid phase, with particle size generally between 0.01 and 10 microns, strong adhesion, generally not easily dissolved in water, and low polarity. The inhalation of a large amount of oil smoke or the inhalation of oil smoke for a long time can cause harm to human health.

To this, generally, the smoke ventilator is arranged in the cooking place to be used for sucking the oil smoke, generally, the smoke ventilator generally mainly comprises a fan, an air inlet, an air outlet and a filter screen, the fan forms a negative pressure area after being started, the oil smoke is sucked into the smoke ventilator from the air inlet, the filter screen is arranged between the air inlet and the fan, and the oil smoke is attached to the filter screen after entering from the air inlet, so that the effect of filtering the oil smoke in the air is achieved, and the air after being filtered is discharged from the air outlet under the action of the fan.

In the prior art, the oil smoke can adhere to the filter screen to form oil dirt, and the filtering performance of the oil smoke can be gradually influenced along with the continuous accumulation of the oil dirt, for example, after the oil dirt blocks the through holes of the filter screen, the air suction capacity of the fan in the working process can be reduced, so that the suction capacity of the oil smoke is influenced, therefore, the filter screen is often required to be detached and cleaned regularly in the prior art, however, in the process, a user does not know when the filter screen needs to be cleaned at all, and along with the development of intelligent automation technology, a plurality of intelligent control schemes for the range hood gradually appear.

In the chinese patent application No. 201310141797.2, a range hood and a method for controlling a range hood are disclosed, and specifically, a weight detection device is used to detect the weight of the range hood and/or the weight of at least one member of the range hood, and the operation of a self-cleaning system is controlled according to the comparison result of the detected weight and a threshold value.

In the chinese patent application No. 201811097782, a control method of a range hood and a range hood are disclosed, specifically, a pre-divided area is disclosed, then the oil scale amount of the oil smoke attached to a corresponding area of the oil smoke contact area generated in each cooking process is calculated based on the relation between the oil smoke size, the oil smoke direction and the generated oil scale amount in the cooking process by image analysis, and when the cleaning condition is reached, an oil pollution distribution map is sent or displayed to a user, so that the user is reminded to perform key cleaning and general cleaning according to the dirt degree.

However, in the above prior art, although a scheme of cleaning by detecting the weight of the range hood or the range hood member for cleaning control and by distributing the oil dirt is proposed, the influence of the distribution of the oil dirt on the filter screen is neglected, and in general, in the range hood, the oil dirt is mainly concentrated on the filter screen, however, the distribution of the oil dirt on the filter screen may have uneven conditions, if cleaning control is performed only by means of the weight detection and the detection of the oil dirt increment of each area in the above prior art, the condition of uneven distribution of the oil dirt on the filter screen may occur after the weight reaches a set value or the oil dirt amount in a preset area reaches a set value, and in the cleaning process, the condition of the oil dirt is mainly concentrated on a certain area is found, which causes that the oil dirt amount concentrated on the filter screen is large, the cleaning is difficult, and the condition of the oil dirt amount in other areas is small, the frequency of cleaning is increased due to the filtering performance of the filter screen is influenced by the excessive concentration of the oil dirt, and the cleaning is required, and the automatic cleaning of the filter screen is difficult to perform for the user, however, the current cleaning scheme has a high cost and high user experience.

In view of the above problems, the present application proposes a new solution.

Disclosure of Invention

The application aims to provide a filtering control system and method of a smoke exhaust ventilator, electronic equipment and a storage medium, and the filtering control system and method have the advantages of improving the smoke filtering capability and prolonging the cleaning period.

In a first aspect, the present application provides a filtration control system of a range hood, where the technical scheme is as follows:

the smoke exhaust ventilator comprises a smoke exhaust ventilator, wherein a fan is arranged in the smoke exhaust ventilator, an air inlet extending along a horizontal first direction is formed in the smoke exhaust ventilator, an air channel is arranged between the air inlet and the fan, and a filter screen for covering the air channel is arranged in the air channel;

further comprises:

the sensor is contacted with the filter screen and is used for detecting stress distribution information of the filter screen in a second direction which is perpendicular to the first direction in the horizontal direction;

the wind direction regulator is arranged between the filter screen and the fan, covers the filter screen, and is provided with at least two rotation regulating parts along the second direction, wherein the rotation regulating parts at least comprise fan blades and rotating shafts extending along the first direction, and the fan blades are arranged on two sides of the rotating shafts;

a controller, comprising:

The acquisition module is used for acquiring the stress distribution information;

and the generation module is used for generating rotation angle information corresponding to each rotation adjusting part according to the stress distribution information so as to enable the rotation adjusting parts to rotate according to the corresponding rotation angle information.

Through setting up sensor and filter screen contact to acquire the atress distribution information on the filter screen, then be provided with wind direction regulator between filter screen and fan, generate rotation angle information of rotation regulation portion in the wind direction regulator according to the atress distribution information, thereby change the wind-force flow direction in the wind channel according to the atress distribution information, and then change the adhesion position of oil smoke on the filter screen, make the oil smoke can evenly distributed adhere to the filter screen, avoid the oil dirt to excessively concentrate on the filter screen, thereby cause frequent cleaning, or clean difficult problem, because the distribution of oil dirt on the filter screen is more even, consequently have the beneficial effect that improves oil smoke filtering capability, extension cleaning cycle.

Further, in the present application, the generating module includes:

and the first generation unit is used for generating the rotation angle information of the rotation adjusting part corresponding to the area with large stress on the filter screen according to the stress distribution information when the stress difference value in the stress distribution information is larger than a preset value, so that the rotation adjusting part rotates to the area with large stress on the filter screen according to the corresponding rotation angle information.

Further, in the present application, the first generating unit includes:

the judging element is used for obtaining a corresponding stress distribution type according to the stress distribution information, and the stress distribution type at least comprises a first side close to the wall body, a second side far away from the wall body and equal stress of the first side and the second side;

the first generating element is used for generating at least the rotation angle information of the rotation adjusting part close to the first side edge when the stress distribution type is that the first side edge is stressed greatly, so that the rotation adjusting part close to the first side edge rotates to the fan blade to be in a horizontal state according to the corresponding rotation angle information to cover a region of the filter screen where the stress is large;

the second generating element is used for generating at least the rotation angle information of the rotation adjusting part close to the second side edge when the stress distribution type is that the second side edge is stressed greatly, so that the rotation adjusting part close to the second side edge rotates to the fan blade to be in a horizontal state according to the corresponding rotation angle information to cover a region stressed greatly on the filter screen;

And the third generating element is used for generating rotation angle information corresponding to each rotation adjusting part when the stress distribution type is that the stress of the first side edge and the stress of the second side edge are equal, so that the rotation adjusting parts rotate to the fan blade to be in a vertical state according to the corresponding rotation angle information.

Further, in this application, the wind channel is equipped with first spacing portion in the one side that is close to the wall body, is equipped with the second spacing portion in the one side that keeps away from the wall body, the filter screen level is placed first spacing portion with on the second spacing portion, be provided with first check point and second check point along the second direction interval on the first spacing portion, first check point is close to wall body one side, second check point is kept away from wall body one side, be provided with third check point and fourth check point along the second direction interval on the second spacing portion, the third check point is close to wall body one side, the fourth check point is kept away from wall body one side, first check point the second check point the third check point and fourth check point all are provided with the sensor with the filter screen contact.

Further, in the present application, the stress distribution type further includes a stress of the middle area;

the third generating element includes:

and the first execution sub-element is used for judging whether the stress distribution type is large in stress of the middle area when the stress distribution type is equal to the stress of the first side edge and the stress of the second side edge, and generating rotation angle information corresponding to the rotation adjusting parts respectively when the stress distribution type is not large in stress of the middle area so that the rotation adjusting parts rotate to the fan blade in a vertical state according to the corresponding rotation angle information.

Further, in the present application, the third generating element further includes:

and the second execution sub-element is used for generating rotation angle information corresponding to each rotation adjusting part when the stress distribution type is that the stress of the middle area is large, so that the rotation adjusting parts rotate to at least two fan blades to cover the middle area according to the corresponding rotation angle information.

Further, in the present application, the dimensions of the outward extension of the fan blades at two sides of the rotating shaft are not equal.

In a second aspect, the application also provides a filtering control method of the smoke exhaust ventilator, which is applied to a filtering control system of the smoke exhaust ventilator, the system comprises the smoke exhaust ventilator, a fan is arranged in the smoke exhaust ventilator, an air inlet extending along a horizontal first direction is formed in the smoke exhaust ventilator, an air channel is arranged between the air inlet and the fan, and a filter screen for covering the air channel is arranged in the air channel;

Further comprises:

the wind direction regulator is arranged between the filter screen and the fan, covers the filter screen, and is provided with at least two rotation regulating parts along the second direction, wherein the rotation regulating parts at least comprise a rotating shaft and fan blades which are arranged along the first direction in an extending way, and the fan blades are arranged on two sides of the rotating shaft;

the method comprises the following steps:

acquiring the stress distribution information;

and generating rotation angle information corresponding to each rotation adjusting part according to the stress distribution information so that the rotation adjusting parts rotate according to the corresponding rotation angle information.

In a third aspect, the present application also provides an electronic device comprising a processor and a memory storing computer readable instructions which, when executed by the processor, perform the steps of the above method.

In a fourth aspect, the present application also provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above method.

According to the filtering control system, the method, the electronic equipment and the storage medium of the smoke ventilator, the sensor is arranged to be in contact with the filter screen so as to acquire stress distribution information on the filter screen, then the wind direction regulator is arranged between the filter screen and the fan, rotation angle information of the rotation regulating part is generated according to the stress distribution information, so that wind power flowing direction in the air duct is changed according to the stress distribution information, and then the attachment position of oil smoke on the filter screen is changed, the oil smoke can be uniformly distributed and attached on the filter screen, the problem that oil dirt is excessively concentrated on the filter screen, and frequent cleaning or difficult cleaning is caused is avoided.

Drawings

Fig. 1 is a cross-sectional view of a range hood provided herein.

Fig. 2 is a front view of a range hood provided herein.

Fig. 3 is a schematic diagram illustrating the arrangement of the filter screen provided in the present application.

Fig. 4 is a schematic structural view of a wind direction regulator provided in the present application.

Fig. 5 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 6 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 7 is a schematic view of another structure of the wind direction regulator provided in the present application.

Fig. 8 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 9 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 10 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 11 is a schematic view of one of the working states of the wind direction regulator provided in the present application.

Fig. 12 is a flowchart of a filtering control method of a range hood provided by the application.

Fig. 13 is a schematic structural diagram of an electronic device provided in the present application.

Fig. 14 is a schematic structural diagram of a controller provided in the present application

In the figure: 100. fume extractor; 110. a blower; 120. an air inlet; 130. an air duct; 140. a filter screen; 150. a wind direction regulator; 160. a first limit part; 170. a second limit part; 151. a rotating shaft; 152. a fan blade; 153. a rotation adjusting part; 154. a mounting frame; 155. an internal opening; 161. a first detection point; 162. a second detection point; 171. a third detection point; 172. a fourth detection point; 200. a controller; 210. an acquisition module; 220. a generating module; 310. a processor; 320. a memory.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The components of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

In the cooking process, the concentration of the oil smoke and the size of the oil smoke particles generated by different food materials and oil discharge are different, and after the oil smoke is sucked into the oil smoke extraction interior, the oil smoke particles are contacted with the filter screen under the action of wind power so as to be attached to the filter screen, in some cases, if the size of the oil smoke particles is kept in a small fluctuation range for a long time, the power of the starting fan is kept consistent, the oil smoke particles can be attached to a certain area of the filter screen in a concentrated manner after entering the interior of the oil smoke extraction machine, so that the oil dirt amount in the area is obviously concentrated, after the oil dirt amount is accumulated to a certain extent, the screen opening of the filter screen is blocked, the oil smoke filtering capacity is further affected, and therefore the filter screen needs to be cleaned.

In this regard, referring to fig. 1 to 14, the present application provides a filtration control system for a range hood, which has the following technical scheme:

the range hood comprises a range hood 100, wherein a fan 110 is arranged in the range hood 100, an air inlet 120 extending along a horizontal first direction is formed in the range hood, an air duct 130 is arranged between the air inlet 120 and the fan 110, and a filter screen 140 covering the air duct 130 is arranged in the air duct 130;

further comprises:

the sensor is contacted with the filter screen 140 and is used for detecting stress distribution information of the filter screen 140 in a second direction which is horizontally perpendicular to the first direction;

a wind direction regulator 150 disposed between the filter screen 140 and the fan 110 and covering the filter screen 140, at least two rotation regulating parts 153 disposed along the second direction, the rotation regulating parts 153 including at least fan blades 152 and a rotation shaft 151 extending along the first direction, the fan blades 152 being disposed at both sides of the rotation shaft 151;

a controller 200 comprising:

an acquisition module 210, configured to acquire stress distribution information;

the generating module 220 is configured to generate rotation angle information corresponding to each of the rotation adjusting parts 153 according to the stress distribution information, so that the rotation adjusting parts 153 rotate according to the corresponding rotation angle information.

Referring to fig. 1 and 2, an air inlet 120 extending along a horizontal first direction is formed on a range hood 100, so that the air inlet 120 is in a strip shape, the exhaust speed can be increased, and further the oil smoke sucking capability is improved, specifically, an inclined panel is disposed on the front surface of the range hood 100, an air inlet 120 extending along the first direction is disposed in the middle of the panel, a fan 110 is disposed above the air inlet 120, a filter screen 140 is disposed between the fan 110 and the air inlet 120, and is horizontally disposed, the arrangement mode can cause the oil smoke to have a distribution difference mainly in a second direction, the oil smoke is sucked into the air duct 130 from the air inlet 120 on the inclined panel under the action of the suction force, and then the movement direction is changed under the action of wind force generated by the fan 110 due to the fact that the oil smoke particles are sucked into the air duct 130, when the oil smoke particles are subjected to an external force substantially consistent, the oil smoke particles are concentrated and adhere to a certain area of the filter screen 140, and the height difference between the filter screen 140 and the air inlet 120 is not large, so that the attachment position of the oil smoke particles is greatly influenced by the initial speed of the oil smoke particles and the oil dirt distribution difference in the second direction.

Wherein, the air duct 130 is funnel-shaped, an oil receiving disc can be arranged below the filter screen 140, an oil drop port is arranged on the oil receiving disc, an oil cup is arranged below the oil receiving disc, liquid oil dirt attached to the filter screen 140 can fall into the oil receiving disc, then falls into the oil cup from the oil drop port of the oil receiving disc, and the oil cup is detachably arranged.

The panel with the air inlet 120 may have an oil guiding structure with a middle high and two ends low above the air inlet 120, so as to prevent liquid oil dirt falling from the filter screen from flowing out of the air inlet, but flow the liquid oil dirt to two sides, and then flow into the oil receiving disc.

The fan 110 may be a centrifugal fan or an axial fan, and the fan 110 may be disposed directly above the filter screen 140 or obliquely above the filter screen 140.

The sensor may specifically be a pressure sensor, which is disposed at two ends of the filter screen 140 in the second direction, so as to detect the pressure applied by the two ends of the filter screen 140 in the second direction, and further obtain the stress distribution information.

The sensor may further use a camera to detect the distribution of oil dirt on the filter screen 140, however, in the range hood, oil dirt is easily attached to the oil dirt, which may affect the imaging of the camera, so that the camera is not the preferred mode.

Wherein, the both ends that the sensor set up specifically are the one end that is close to the wall body and the one end that keeps away from the wall body, and the pressure that the sensor of wherein one end detected is greater than other one end, then indicates that the oil dirt distributes unevenly on filter screen 140, and at this moment, if the oil dirt continues to accumulate in one side that the volume is many, can produce the excessive concentration of oil dirt, influences the oil smoke filter effect, need clean, can bring clean cycle weak point from this, clean troublesome scheduling problem.

To this, the application then proposes to set up wind direction regulator 150 between filter screen 140 and fan 110, changes the motion track of oil smoke through wind direction regulator 150 to change the attached position of oil smoke granule on filter screen 140, avoid the oil smoke granule to continue to remove towards the concentrated region of oil dirt and attach, thereby make the distribution of oil dirt on filter screen 140 more even, avoid the excessive concentration of oil dirt, thereby improved oil smoke filtration capacity, reduced clean cycle.

Due to the above arrangement, the oil dirt mainly exhibits a distribution difference in the second direction, so that the wind direction regulator 150 according to the present application is specifically provided with at least two rotation regulating portions 153 along the second direction, the rotation regulating portions 153 at least include a rotation shaft 151 extending along the first direction and fan blades 152, and the fan blades 152 are disposed on the outer circumferential side surface of the rotation shaft 151.

The initial state of the fan 152 may be a vertical state, at this time, the fan 152 may not change the moving direction of the oil smoke, as shown in fig. 5, when the pressure at one end of the filter screen 140 is greater than the pressure at the other end and exceeds a certain value, this indicates that the problem of uneven distribution of the oil dirt occurs, at this time, rotation angle information may be generated to enable the rotating shaft 151 to drive the fan 152 to rotate, where the rotation angle information may include a rotation angle and a rotation direction, specifically, the rotation angle may be 90 °, that is, the fan 152 that becomes the horizontal state may block a part of the area covering the filter screen 140, as shown in fig. 6 and 8, at this time, wind generated by the fan 110 cannot act on the blocked area, that is, the area covered by the fan 152 cannot be acted by wind force, so that the oil dirt does not move to the blocked area, thereby achieving the purpose of changing the attachment position of the oil dirt particles on the filter screen 140, and finally, the oil dirt may be uniformly distributed on the filter screen 140.

Referring to fig. 5, 6 and 8, arrows in the drawing indicate movement of the soot, and when the fan blades 152 cover a part of the area, the soot located at a position below the filter screen 140 is concentrated to move to the other side, and the arrows in the drawing are only one kind of illustration.

Through setting up the sensor and contacting with filter screen 140 to acquire the atress distribution information on filter screen 140, then be provided with wind direction regulator 150 between filter screen 140 and fan 110, rotation angle information that rotates adjustment part 153 in the wind direction regulator 150 is generated according to the atress distribution information, thereby change the wind-force flow direction in the wind channel 130 according to the atress distribution information, and then change the attached position of oil smoke on filter screen 140, make the oil smoke can evenly distributed adhere to filter screen 140, avoid the oil dirt excessively to concentrate on filter screen 140, thereby cause frequent cleaning, or clean difficult problem, because the distribution of oil dirt on filter screen 140 is more even, consequently have the beneficial effect that improves oil smoke filtering capability, extension clean cycle.

Specifically, in some of these embodiments, the generation module 220 includes:

the first generating unit is configured to generate rotation angle information of the rotation adjusting portion 153 corresponding to the area with large stress on the filter screen 140 according to the stress distribution information when the stress difference in the stress distribution information is greater than a preset value, so that the rotation adjusting portion 153 rotates to the fan blade 152 to cover the area with large stress on the filter screen 140 according to the corresponding rotation angle information.

The preset value may be preset, where the preset value is a stress difference value between two ends of the allowed filter screen 140 in the second direction, when the stress difference value between two ends exceeds the preset value, it indicates that the uneven distribution degree of the oil dirt on the filter screen 140 reaches a certain degree, at this time, rotation angle information of the rotation adjusting portion 153 corresponding to the area with large stress on the filter screen 140 is generated according to the stress distribution information, so that the corresponding rotation adjusting portion 153 rotates to enable the fan blade 152 to cover the area with large stress on the filter screen 140.

The generating module 220 may include a control unit for controlling the rotation of the rotation adjusting portion 153, and at this time, the rotating shaft 151 of the rotation adjusting portion 153 may be connected with a power portion, which may be a small-sized motor, a motor, or the like.

In addition, the rotation adjusting portion 153 may be manually rotated, at this time, the rotating shaft 151 may extend through the side wall of the range hood 100 along the first direction to the outside, and be provided with a corresponding switch button, when the stress difference is greater than a preset value, the rotation angle information of the rotation adjusting portion 153 is generated, and then prompt information may be sent to the mobile intelligent terminal of the user, so that the user manually operates the switch button to complete the rotation of the rotation adjusting portion 153, and a corresponding indicator light may be further provided on the range hood 100 to remind the user to perform an operation.

In general, the fan 152 may be disposed in two states, one is a vertical state and the other is a horizontal state, where the two states differ by 90 °, and when the fan 152 is in the horizontal state, a part of the area on the filter screen 140 is blocked.

The fan 152 may be specifically provided with two fan blades on the rotating shaft 151, and the positions of the fan blades are symmetrical, so that the area covered by the fan blades 152 when the fan blades shelter the filter screen 140 is the largest.

Referring to fig. 4 to 6, in some preferred embodiments, the rotation adjusting part 153 is provided with two, the wind direction adjuster 150 further includes a mounting frame 154, the mounting frame 154 is a hollow structure with top and bottom openings, the rotating shafts 151 are rotatably provided on the mounting frame 154, and the size of the inner opening 155 of the mounting frame 154 in the second direction is H, so that the distance between the rotation center of one rotating shaft 151 and the inner wall of the mounting frame 154 on the side close to the wall is H/4, the distance between the rotation center of the other rotating shaft 151 and the inner wall of the mounting frame 154 on the side far from the wall is H/4, the size of the two rotation adjusting parts 153 is the same, and the distance between the outwardly extending ends of the fan blades 152 and the rotation center of the rotating shaft 151 is H/4, i.e., when the fan blades 152 on the two rotating shafts 151 are both rotated to the horizontal state, the inner opening 155 of the entire mounting frame 154 can be covered, and the entire filter screen 140 can be covered.

When the stress difference in the stress distribution information is greater than a preset value, rotation angle information corresponding to the rotation adjustment portion 153 is generated, for example, stress on one side close to the wall is large, rotation angle information of the rotation adjustment portion 153 on one side close to the wall is generated, specifically, the rotation adjustment portion 153 is rotated 90 degrees clockwise or anticlockwise, then the rotation adjustment portion 153 is controlled to rotate 90 degrees automatically or manually, the fan blades 152 rotate from an initial vertical state to a horizontal state, the area, close to the wall, of the filter screen 140 is shielded, and in the process, only rotation angle information of one rotation adjustment portion 153 is generated.

Specifically, in some of these embodiments, the first generation unit includes:

the judging element is used for obtaining a corresponding stress distribution type according to the stress distribution information, wherein the stress distribution type at least comprises that the stress of a first side close to the wall is large, the stress of a second side far away from the wall is large, and the stress of the first side and the stress of the second side are equal;

the first generating element is configured to generate at least rotation angle information of the rotation adjusting portion 153 near the first side when the stress distribution type is that the first side is stressed, so that the rotation adjusting portion 153 near the first side rotates to a horizontal state of the fan blade 152 according to the corresponding rotation angle information to cover a region of the filter screen 140 where the stress is large;

The second generating element is configured to generate at least rotation angle information of the rotation adjusting portion 153 near the second side when the stress distribution type is that the second side is stressed, so that the rotation adjusting portion 153 near the second side rotates to a horizontal state of the fan blade 152 according to the corresponding rotation angle information to cover a region on the filter screen 140 where the stress is large;

and a third generating element, configured to generate rotation angle information corresponding to each of the rotation adjusting portions 153 when the stress distribution types are equal to the stress of the first side and the stress of the second side, so that the rotation adjusting portions 153 rotate to the fan blades 152 in a vertical state according to the corresponding rotation angle information.

In some embodiments described above, it is proposed that when the stress difference in the stress distribution information is greater than a preset value, the rotation angle information corresponding to the rotation adjustment portion 153 is generated, then the corresponding rotation adjustment portion 153 is rotated, and the area with large stress on the filter screen 140 is shielded by the fan blade 152, so as to change the moving direction of the oil smoke, thereby avoiding the excessive concentration of the oil smoke particles in a certain area, so that the oil dirt on the filter screen 140 is uniformly distributed, after a period of time, the stress difference at two ends of the filter screen 140 is gradually reduced, and when the stress difference is reduced to a certain extent, the stress of the first side and the second side on the filter screen 140 is equal, at this moment, the rotation angle information corresponding to the rotation adjustment portion 153 is generated, so that the rotation adjustment portion 153 is rotated, and the fan blade 152 is rotated from a horizontal state to a vertical state, so that the filter screen 140 is not shielded.

Specifically, referring to fig. 3, in some embodiments, the air duct 130 is provided with a first limiting portion 160 on a side close to the wall, a second limiting portion 170 on a side far from the wall, the filter screen 140 is horizontally disposed on the first limiting portion 160 and the second limiting portion 170, the first limiting portion 160 is provided with a first detection point 161 and a second detection point 162 at intervals along a second direction, the first detection point 161 is close to the wall, the second detection point 162 is far from the wall, the second limiting portion 170 is provided with a third detection point 171 and a fourth detection point 172 at intervals along the second direction, the third detection point 171 is close to the wall, the fourth detection point 172 is far from the wall, and the first detection point 161, the second detection point 162, the third detection point 171 and the fourth detection point 172 are all provided with sensors in contact with the filter screen 140.

The pressure detected by the first detection point 161 is the first pressure, the pressure detected by the second detection point 162 is the second pressure, the pressure detected by the third detection point 171 is the third pressure, and the pressure detected by the fourth detection point 172 is the fourth pressure.

In some embodiments described above, it is proposed that by determining the stress distribution of the filter screen 140 in the second direction, the corresponding rotation adjusting portion 153 rotates to cover the corresponding area, so as to change the moving direction of the oil smoke, and change the attachment position of the oil smoke particles on the filter screen 140, so as to make the oil dirt distribution on the filter screen 140 more uniform, however, in the above scheme, the filter screen 140 can only be divided into two left and right areas, the two areas occupy larger sizes, and the oil smoke may still have uneven distribution in the left and right areas.

In this regard, the present embodiment proposes to provide the first detection point 161, the second detection point 162, the third detection point 171, and the fourth detection point 172, and by providing four detection points, the filter screen 140 is divided into three areas of left, middle, and right, so that the uniformity of the distribution of the oil dirt on the filter screen 140 can be further improved.

Specifically, when the first pressure and the second pressure are both greater than the third pressure and the fourth pressure, it means that the oil dirt on the filter screen 140 is mainly concentrated in the area close to the wall body, i.e. the left area, i.e. the stress distribution type is that the stress of the first side is large;

when the third pressure and the fourth pressure are both greater than the first pressure and the second pressure, the oil dirt on the filter screen 140 is mainly concentrated in the area far away from the wall body, namely, the right area, namely, the stress distribution type is that the stress of the second side edge is large;

when the second pressure is equal to the third pressure, namely the difference value is smaller than the first set value, the first pressure is equal to the fourth pressure, namely the difference value is smaller than the second set value, namely the stress distribution type is that the stress of the first side edge and the stress of the second side edge are equal.

When the second pressure is equal to the third pressure, that is, the difference is smaller than the first set value, the first pressure is equal to the fourth pressure, that is, the difference is smaller than the second set value, and the second pressure is larger than the first pressure, and when the third pressure is larger than the fourth pressure, it means that the oil dirt on the filter screen 140 is mainly concentrated in the middle area, but less oil dirt on the two sides, when the oil dirt is concentrated in the middle area, the middle of the filter screen 140 is sunk, and the two ends are raised at the same time, therefore, the second pressure and the third pressure are increased, and the first pressure and the fourth pressure are reduced.

When oil dirt is concentrated in the middle area of the filter screen 140, the middle area needs to be shielded by the fan blades 152, so that the oil smoke moves to two sides.

That is, the stress distribution type further includes a stress distribution type in which the stress in the intermediate region is large, and the stress distribution type in which the stress in the intermediate region is large belongs to one of the stress distribution types in which the stress on the first side and the stress on the second side are equal.

In some embodiments described above, it is proposed that when the stress distribution type is equal to the stress of the first side and the second side, the fan blade 152 is in a vertical state, and by the above-mentioned scheme, after four detection points are set, the filter screen 140 can be divided into three areas, so that when the stress distribution type is equal to the stress of the first side and the second side, it is also necessary to determine whether the stress distribution type is the stress of the middle area is large.

That is, the third generating element includes:

the first actuating sub-element is configured to determine whether the stress distribution type is that the stress of the middle area is large when the stress distribution type is that the stress of the first side and the stress of the second side are equal, and generate rotation angle information corresponding to each of the rotation adjusting portions 153 when the stress distribution type is not that the stress of the middle area is large, so that the rotation adjusting portions 153 rotate to the fan blades 152 to be in a vertical state according to the corresponding rotation angle information.

The second actuating sub-element is configured to generate rotation angle information corresponding to each rotation adjustment portion 153 when the stress distribution type is that the stress in the middle area is large, so that the rotation adjustment portion 153 rotates to at least two fan blades 152 to cover the middle area according to the corresponding rotation angle information.

In some embodiments described above, the dimension of the opening 155 in the mounting frame 154 in the second direction is H, then the distance between the rotation center of one of the rotating shafts 151 and the inner wall of the mounting frame 154 on the side close to the wall is H/4, the distance between the rotation center of the other rotating shaft 151 and the inner wall of the mounting frame 154 on the side far away from the wall is H/4, the dimensions of the two rotation adjusting parts 153 are the same, and the dimension of the distal end of the fan blade 152 extending outwards is H/4, however, this method is only suitable for the case of dividing the filter screen 140 into two left and right areas, but cannot be suitable for the case of dividing the filter screen 140 into three left, middle and right areas, because the fan blade 152 needs to rotate to the horizontal state when the fan blade 152 shields the middle area, and the fan blade 152 at this time covers the inner opening 155 of the entire mounting frame 154.

In this regard, it is further proposed in the present application that the outwardly extending dimension of the fan blades 152 on both sides of the rotation shaft 151 is not equal.

Preferably, the two rotation adjusting portions 153 have the same structure.

Preferably, after the blades 152 of the two rotation adjusting parts 153 are all rotated to a horizontal state, they can just cover the inner opening 155 of the mounting frame 154.

Specifically, referring to fig. 7 to 9, in some embodiments, if the dimension of the inner opening 155 of the mounting frame 154 in the second direction is H, the distance between the rotation center of one of the rotating shafts 151 and the inner wall of the mounting frame 154 on the side close to the wall is H/6, the distance between the rotation center of the other rotating shaft 151 and the inner wall of the mounting frame 154 on the side far from the wall is H/3, the distance between the rotation centers of the two rotating shafts 151 is H/2, the dimension of the two rotation adjusting parts 153 is the same, the fan blade 152 includes a first fan blade and a second fan blade, wherein the distance between the end of the first fan blade extending outward and the rotation center of the rotating shaft 151 is H/3, the distance between the end of the second fan blade extending outward and the rotation center of the rotating shaft 151 is H/6, at this time, when the fan blades 152 on the two rotating shafts 151 are all rotated to the horizontal state, the inner opening 155 of the mounting frame 154 can also be completely covered, the inner opening 155 of the mounting frame 154 is arranged in the order from the side close to the side far from the wall, the fan blade 152 is: the second fan blade-the first fan blade-the second fan blade-the first fan blade.

Through the above arrangement, when the stress distribution type is determined to be large in the middle area, the rotation angle information of the two rotation adjusting parts 153 can be generated, so that the first fan blades of the two rotation adjusting parts 153 rotate to the position between the two rotating shafts 151, and finally the tail ends of the two first fan blades are in contact with each other, thereby completing shielding of the middle area.

The middle region of filter 140 may be a region having a region overlapping with the left and right regions, that is, the left, middle, and right regions of filter 140 do not necessarily mean equally divided regions.

In some embodiments, when the rotation angle information of the two rotation adjusting portions 153 is generated, the first blades of the two rotation adjusting portions 153 are rotated to a position between the two rotating shafts 151, and finally, the two first blades are contacted with each other to block the middle area, the ends of the two first blades are not necessarily contacted with each other, when the middle area of the filter screen 140 is stressed greatly, the stress at the two ends of the filter screen 140 is usually within a certain allowable range, but the stress at the two ends still has a difference value, specifically, the rotation angle of the two rotation adjusting portions 153 may be determined according to the magnitude of the difference value, as shown in fig. 10, when the difference value of the second pressure is greater than the third pressure, the larger the difference value of the second blades of the rotation adjusting portions 153 at the right side is, the larger the second blades of the rotation adjusting portions 153 at the left side are rotated in the clockwise direction, and when the difference value reaches a preset value, the right side 152 can be finally rotated to the horizontal state, as shown in fig. 11, the second blades at the left side are contacted with the second blades at the clockwise side.

Specifically, a table of the relationship between the difference between the second pressure and the third pressure and the rotation angle information of the two rotation shafts 151 may be established in advance through experiments, each difference corresponding to the rotation angle information of the two rotation shafts 151.

Specifically, in some embodiments, the controller 200 may be enabled to operate each time the range hood enters the operating state, that is, when the range hood is in use, the acquiring module 210 acquires the stress distribution information, and the generating module generates the rotation angle information corresponding to each of the rotation adjusting portions 153 according to the stress distribution information, so that the rotation adjusting portions 153 rotate according to the corresponding rotation angle information.

Wherein the rotation angle information includes a rotation angle and a rotation direction.

When the range hood is used each time, the rotation angle information is generated, which means that the rotation adjusting part 153 is only controlled to rotate once when the range hood is just started when the range hood is used, then the sensor and the controller 200 enter a dormant state and can not work until the next time the range hood is started, and the purpose of setting is to avoid continuous work of the sensor and the controller 200, so that the service life can be prolonged and the energy consumption can be reduced. Meanwhile, more importantly, since the soot particles are attached to the filter screen 140, not all soot particles become oil dirt, and there is liquid oily matter which acts on the filter screen 140 to generate pressure, however, the liquid oily matter flows and finally falls into the oil cup at the bottom after a certain time, and in this process, the liquid oily matter flows, so that the stress distribution information of the filter screen 140 in the second direction which is horizontal and perpendicular to the first direction and is detected by the sensor is greatly disturbed, and if the sensor and the controller 200 are in a continuous working state in this process, frequent rotation of the rotation control part 153 may occur.

Thus, as a preferred embodiment, the controller 200 is enabled only each time the range hood is put into operation, and then put into a sleep state until the next time the range hood is put into operation.

In some embodiments, when the rotation angle information is generated, the rotation angle may be calculated according to an absolute angle and an angle of the current fan blade 152, where the absolute angle refers to a presented angle that the fan blade 152 needs to rotate, specifically, when the absolute angle of the second fan blade in the fan blade 152 is considered as 0 ° and 360 ° in the vertical direction, and when the second fan blade rotates in the clockwise direction in one circle to return to the vertical position, the second fan blade corresponds to 0 ° to 360 °, then a corresponding relationship between the stress distribution information and the absolute angle of the fan blade 152 may be established in advance, when the rotation angle information is generated, the rotation angle that the fan blade 152 needs to rotate may be calculated according to a difference between the angle at which the fan blade 152 is currently located and the absolute angle that needs to rotate, and after the required rotation angle is calculated, the rotation direction is generated.

When the required rotation angle is calculated, two rotation angles can be obtained, because the fan blade 152 needs to rotate, it can rotate clockwise or anticlockwise, so that a clockwise rotation angle and an anticlockwise rotation angle can be obtained, and after the two rotation angles are obtained, the one with the smaller rotation angle is selected from the two rotation angles, so that the corresponding rotation direction is obtained.

Wherein in some embodiments, the rotation sequence of the two rotation adjusting parts 153 is determined according to the generated rotation angle information.

Since there are two rotation adjusting portions 153, the fan blades of the two rotation adjusting portions 153 may be affected by the interference of the other during the rotation, and thus, the influence caused by the mutual interference between the two rotation adjusting portions 153 can be avoided by controlling the rotation sequence of the two rotation adjusting portions 153.

It should be noted that, the rotation sequence here does not merely control one of the rotation adjustment portions 153 to rotate to the target angle before controlling the other rotation adjustment portion 153 to rotate to the target angle, but may control one of the rotation adjustment portions 153 to rotate to an intermediate angle, then control the other rotation adjustment portion 153 to rotate, and then control the rotation adjustment portion 153 to rotate to the intermediate angle, so as to avoid interference influence on the rotation of the rotation adjustment portion 153.

In some embodiments, in order to avoid interference influence of the rotation adjusting portion 153 during rotation, the other rotation adjusting portion 153 may be controlled to rotate to avoid, specifically, two rotation angles of the rotation adjusting portion 153, which are a smaller first rotation angle and a larger second rotation angle, are obtained, when interference influence is caused during rotation according to the smaller first rotation angle, a third rotation angle of the other rotation adjusting portion 153, which needs to avoid, is calculated, and when (2×third rotation angle) +the first rotation angle > the third rotation angle, the other rotation adjusting portion 153 is controlled to rotate to avoid.

Through the above-mentioned scheme of this application, make rotation regulation portion 153 developments rotation according to the atress distribution information on the filter screen 140, and then let the oil dirt distribute evenly on the filter screen 140, when weight on filter screen 140 reaches the setting value, then send clear prompt message.

Compared with the Chinese patent application with application numbers of 201310141797.2 and 201811097782.X, the oil dirt can be distributed more uniformly on the filter screen, so that the cleaning difficulty is reduced, the filtering capacity of the filter screen cannot be greatly reduced before the weight reaches the set value, namely, the filter screen has good filtering stability, and meanwhile, the set value can be set larger, so that the cleaning period is prolonged.

In a second aspect, referring to fig. 12, the present application further provides a filtration control method of a smoke exhaust ventilator, which is applied to a filtration control system of a smoke exhaust ventilator, the system includes a smoke exhaust ventilator 100, a fan 110 is arranged in the smoke exhaust ventilator 100, an air inlet 120 extending along a horizontal first direction is formed, an air duct 130 is formed between the air inlet 120 and the fan 110, and a filter screen 140 covering the air duct 130 is arranged in the air duct 130;

further comprises:

A wind direction regulator 150 disposed between the filter screen 140 and the fan 110 and covering the filter screen 140, at least two rotation regulating parts 153 disposed along the second direction, the rotation regulating parts 153 at least including a rotation shaft 151 and fan blades 152 extending along the first direction, the fan blades 152 disposed at both sides of the rotation shaft 151;

the method comprises the following steps:

s110, obtaining stress distribution information;

and S120, generating rotation angle information corresponding to the rotation adjusting parts 153 respectively according to the stress distribution information so as to enable the rotation adjusting parts 153 to rotate according to the corresponding rotation angle information.

Furthermore, in some preferred embodiments, a method for controlling the filtration of the range hood 100 provided in the present application may include the functional steps performed by each module unit in the filtration control system of the range hood 100.

In a third aspect, referring to fig. 13, the present application further provides an electronic device, including a processor 310 and a memory 320, the memory 320 storing computer readable instructions which, when executed by the processor 310, perform the steps of the above method.

Through the foregoing, the processor 310 and the memory 320 are interconnected and communicate with each other through a communication bus and/or other form of connection mechanism (not shown), the memory 320 storing computer readable instructions executable by the processor 310, which when executed by the electronic device, the processor 310 executes the computer readable instructions to perform the method in any of the alternative implementations of the foregoing embodiments to perform the following functions: acquiring stress distribution information; rotation angle information corresponding to each of the rotation adjusting portions 153 is generated based on the force distribution information so that the rotation adjusting portions 153 rotate based on the corresponding rotation angle information.

By the above technical solution, the computer program, when executed by the processor, performs the method in any of the alternative implementations of the above embodiments to implement the following functions: acquiring stress distribution information; rotation angle information corresponding to each of the rotation adjusting portions 153 is generated based on the force distribution information so that the rotation adjusting portions 153 rotate based on the corresponding rotation angle information.

The computer readable storage medium may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM), electrically erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

Further, the units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Furthermore, functional modules in various embodiments of the present application may be integrated together to form a single portion, or each module may exist alone, or two or more modules may be integrated to form a single portion.

The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a filtration control system of smoke ventilator, includes smoke ventilator (100), be equipped with fan (110) in smoke ventilator (100), and set up air intake (120) that extend along horizontal first direction, air intake (120) with be wind channel (130) between fan (110), be equipped with in wind channel (130) and cover filter screen (140) in wind channel (130), its characterized in that:

Further comprises:

the sensor is contacted with the filter screen (140) and is used for detecting stress distribution information of the filter screen (140) in a second direction which is perpendicular to the first direction in the horizontal direction;

a wind direction regulator (150) disposed between the filter screen (140) and the fan (110) and covering the filter screen (140), at least two rotation regulating portions (153) being disposed along the second direction, the rotation regulating portions (153) at least including fan blades (152) and a rotation shaft (151) extending along the first direction, the fan blades (152) being disposed on both sides of the rotation shaft (151);

a controller (200) comprising:

an acquisition module (210) for acquiring the force distribution information;

and the generation module (220) is used for generating rotation angle information corresponding to each rotation adjusting part (153) according to the stress distribution information so as to enable the rotation adjusting part (153) to rotate according to the corresponding rotation angle information.

2. The filter control system of a range hood according to claim 1, wherein the generating module (220) comprises:

and the first generation unit is used for generating the rotation angle information of the rotation adjusting part (153) corresponding to the area with large stress on the filter screen (140) according to the stress distribution information when the stress difference value in the stress distribution information is larger than a preset value, so that the rotation adjusting part (153) rotates to the area with large stress on the filter screen (140) covered by the fan blade (152) according to the corresponding rotation angle information.

3. The filter control system of a range hood according to claim 2, wherein the first generating unit includes:

the first generating element is configured to generate at least the rotation angle information of the rotation adjusting portion (153) near the first side when the stress distribution type is that the first side is stressed, so that the rotation adjusting portion (153) near the first side rotates to the fan blade (152) in a horizontal state according to the corresponding rotation angle information to cover a region of the filter screen (140) where the stress is large;

the second generating element is configured to generate at least the rotation angle information of the rotation adjusting part (153) near the second side when the stress distribution type is that the second side is stressed, so that the rotation adjusting part (153) near the second side rotates to the fan blade (152) in a horizontal state according to the corresponding rotation angle information to cover a region of the filter screen (140) where the stress is large;

And the third generating element is used for generating rotation angle information corresponding to each rotation adjusting part (153) when the stress distribution type is equal to the stress of the first side edge and the stress of the second side edge, so that the rotation adjusting parts (153) rotate to the fan blades (152) to be in a vertical state according to the corresponding rotation angle information.

4. A filtration control system of a range hood according to claim 3, wherein the air duct (130) is provided with a first limit part (160) at a side close to the wall body, a second limit part (170) at a side far away from the wall body, the filter screen (140) is horizontally placed on the first limit part (160) and the second limit part (170), a first detection point (161) and a second detection point (162) are arranged on the first limit part (160) along the second direction at intervals, the first detection point (161) is close to one side of the wall body, the second detection point (162) is far away from one side of the wall body, a third detection point (171) and a fourth detection point (172) are arranged on the second limit part (170) along the second direction at intervals, the third detection point (171) is close to one side of the wall body, and the fourth detection point (172) is far away from one side of the wall body, and the first detection point (161), the second detection point (162), the third detection point (171) and the fourth detection point (172) are all provided with sensors in contact with the filter screen (140).

5. A smoke exhaust ventilator filter control system as defined in claim 3, wherein said stress profile further comprises a stress profile of the intermediate region;

the third generating element includes:

and the first execution sub-element is used for judging whether the stress distribution type is large in stress of the middle area when the stress distribution type is equal to the stress of the first side edge and the stress of the second side edge, and generating rotation angle information corresponding to the rotation adjusting parts (153) respectively when the stress distribution type is not large in stress of the middle area, so that the rotation adjusting parts (153) rotate to the fan blades (152) in a vertical state according to the corresponding rotation angle information.

6. The smoke exhaust ventilator filter control system of claim 5, wherein said third generating element further comprises:

and the second execution sub-element is used for generating rotation angle information corresponding to each rotation adjusting part (153) when the stress distribution type is that the stress of the middle area is large, so that the rotation adjusting parts (153) rotate to at least cover the middle area by two fan blades (152) according to the corresponding rotation angle information.

7. The filtering control system of a range hood according to claim 6, wherein the blades (152) on both sides of the rotating shaft (151) are not equal in size in outward extension.

8. The utility model provides a filtration control method of smoke ventilator, is applied to the filtration control system of smoke ventilator, and this system includes smoke ventilator (100), be equipped with fan (110) in smoke ventilator (100), and set up air intake (120) that extend along horizontal first direction, air intake (120) with be wind channel (130) between fan (110), be equipped with in wind channel (130) and cover filter screen (140) in wind channel (130), its characterized in that:

further comprises:

The method comprises the following steps:

acquiring the stress distribution information;

and generating rotation angle information corresponding to each rotation adjusting part (153) according to the stress distribution information so that the rotation adjusting parts (153) rotate according to the corresponding rotation angle information.

9. An electronic device comprising a processor (310) and a memory (320), the memory (320) storing computer readable instructions which, when executed by the processor (310), perform the steps in the method of claim 8.

10. A storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of claim 8.