CN112393308A - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
- Publication number
- CN112393308A CN112393308A CN202011479421.9A CN202011479421A CN112393308A CN 112393308 A CN112393308 A CN 112393308A CN 202011479421 A CN202011479421 A CN 202011479421A CN 112393308 A CN112393308 A CN 112393308A
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- oil smoke
- fan
- fan assembly
- range hood
- smoke concentration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention provides a range hood and a control method thereof, which relate to the technical field of range hoods and comprise a fan assembly, a driving mechanism and an oil smoke detection device; the oil smoke detection device is arranged at an air inlet at the bottom of the oil smoke machine, the fan assembly and the driving mechanism are both arranged inside a shell of the oil smoke machine, the oil smoke detection device is in communication connection with the driving mechanism, the driving mechanism is connected with the fan assembly, the driving mechanism is used for driving the fan assembly to move to a preset optimal position for oil smoke treatment, and the preset optimal position is determined according to a plurality of oil smoke concentration values of different positions detected by the oil smoke detection device. Determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values of different positions detected by the oil smoke detection device, so that the driving mechanism drives the fan assembly to move to the preset optimal position for oil smoke treatment in the shell, and accurate smoking is realized; the smoking effect can be guaranteed, the performance of the fan component can be maximized, and therefore energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a range hood and a control method thereof.
Background
The fan of present cigarette machine is unmovable, and current cooking utensils have two or more than two kitchen range eyes usually, when single kitchen range eye uses, can appear on one side or the one direction oil smoke concentration height usually, the other side oil smoke concentration is low and form the unbalanced condition of oil smoke concentration above the cooking utensils, and the position of fan is fixed unchangeable, and the oil smoke need rotate certain angle just can pass through the wind channel and discharge, at this in-process, must have some oil smoke to run off before getting into the wind channel, and the smoking effect is not good.
Disclosure of Invention
The invention aims to provide a range hood and a control method thereof, and aims to solve the technical problems that in the prior art, the position of a fan is fixed, when the range hood is used by a single stove eye, oil smoke can be discharged through an air duct only through a certain angle, part of the oil smoke runs off before entering the air duct, and the smoking effect is poor.
The invention provides a range hood, which comprises a fan assembly, a driving mechanism and an oil smoke detection device;
the lampblack detection device is arranged at an air inlet at the bottom of the range hood and used for detecting a plurality of lampblack concentration values at different positions of the air inlet at the bottom of the range hood;
the utility model discloses a lampblack absorber, including the lampblack absorber, fan subassembly, actuating mechanism, drive mechanism and drive mechanism, fan subassembly with actuating mechanism all sets up inside the shell of lampblack absorber, oil smoke detection device with actuating mechanism communication is connected, actuating mechanism with fan subassembly is connected, actuating mechanism is used for the drive fan subassembly is in remove in the shell, so that fan subassembly can remove to the preset optimum position of oil smoke processing, preset optimum position basis a plurality of oil smoke concentration values of the different positions that oil smoke detection device detected are confirmed.
Further, the driving mechanism drives the fan assembly to move in a horizontal plane inside the shell.
Further, the shell comprises a box body and a protective cover, and the lower end of the box body is connected with the upper end of the protective cover; the upper end of fan subassembly through first elastic component with the upper end of box is connected, the lower extreme of fan subassembly through the second elastic component with the lower extreme of safety cover is connected, the second elastic component with the safety cover forms the collection petticoat pipe of lampblack absorber.
Further, the range hood also comprises a filter screen, and the filter screen is arranged at the bottom of the smoke collecting hood;
the oil smoke detection device comprises a plurality of oil smoke concentration sensors which are arranged on the filter screen or the bottom surface of the smoke collecting cover at intervals;
the driving mechanism is used for driving the fan assembly to move in a plane parallel to the filter screen or the bottom surface of the smoke collecting cover.
Furthermore, the filter screen is the rectangle structure, and is a plurality of oil smoke concentration sensor equipartition is in on the filter screen.
Furthermore, the number of the oil smoke concentration sensors is four, and the four oil smoke concentration sensors are respectively arranged at four corners of the filter screen.
Further, the filter screen is of a grid structure.
Further, the fan assembly comprises a fixed cover and a fan;
the driving mechanism comprises a first driving structure and a second driving structure, the fan is arranged inside the fixed cover, one end of the first driving structure is arranged on the inner side wall of the fixed cover, and the other end of the first driving structure is connected with the fan and used for driving the fan to move along a first direction;
one end of the second driving structure is connected with the inner side wall of the shell, and the other end of the second driving structure is connected with the fixed cover and used for driving the fixed cover and the fan to move along a second direction;
the first direction intersects the second direction.
Further, the first driving structure comprises a first push rod motor and a second push rod motor; the first push rod motor is arranged on the inner side wall of one side of the fixed cover, and the second push rod motor is arranged on the inner side wall of the other side of the fixed cover and corresponds to the first push rod motor;
the second driving structure comprises a third push rod motor and a fourth push rod motor; the third push rod motor is arranged on the inner side wall of one side of the shell, and the fourth push rod motor is arranged on the inner side wall of the other side of the shell and corresponds to the third push rod motor.
The invention provides a control method of a range hood, which comprises the following steps:
acquiring a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of an oil smoke machine;
determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values at different positions;
and controlling a driving mechanism to drive the fan assembly to move to the preset optimal position.
Further, the step of determining the preset optimal position for the oil smoke treatment according to the plurality of oil smoke concentration values at different positions comprises:
calculating the added value of any two oil smoke concentration values in the plurality of oil smoke concentration values, and comparing all the added values to obtain the maximum added value;
and controlling the driving mechanism to drive the fan assembly to move to the middle point of a straight line connecting line of the two detection positions corresponding to the maximum addition value or to a set straight line which passes through the middle point of the straight line connecting line of the two detection positions corresponding to the maximum addition value and is perpendicular to the straight line.
Further, the control unit controls the driving mechanism to drive the fan assembly to move to a midpoint of a line connecting straight lines of the two detection positions corresponding to the maximum added value or to a set straight line, wherein the set straight line is performed after the step of passing through the midpoint of the line connecting straight lines of the two detection positions corresponding to the maximum added value and being perpendicular to the straight line:
comparing the oil smoke concentration values of the two detection positions corresponding to the maximum added value;
when the oil smoke concentration values of the two detection positions are equal, the fan assembly does not move;
when the oil smoke concentration value of one detection position is larger than that of the other detection position, the control driving mechanism drives the fan assembly to move a set unit distance to the detection position with the larger oil smoke concentration value.
Further, when the oil smoke concentration value of one of the detection positions is greater than that of the other detection position, the step of controlling the driving mechanism to drive the fan assembly to move to the detection position with the larger oil smoke concentration value by a set unit distance further comprises that when the absolute value of the difference value of the oil smoke concentration values of the two detection positions is smaller than a preset value, the fan assembly does not move.
The invention provides a range hood, which comprises a fan assembly, a driving mechanism and an oil smoke detection device; the lampblack detection device is arranged at an air inlet at the bottom of the lampblack machine and used for detecting a plurality of lampblack concentration values at different positions of the air inlet at the bottom of the lampblack machine; the utility model discloses a lampblack absorber, including the lampblack absorber, fan subassembly, actuating mechanism, drive mechanism and drive mechanism, fan subassembly with actuating mechanism all sets up inside the shell of lampblack absorber, oil smoke detection device with actuating mechanism communication is connected, actuating mechanism with fan subassembly is connected, actuating mechanism is used for the drive fan subassembly is in remove in the shell, so that fan subassembly can remove to the preset optimum position of oil smoke processing, preset optimum position basis a plurality of oil smoke concentration values of the different positions that oil smoke detection device detected are confirmed.
The driving mechanism is connected with the fan assembly and can drive the fan assembly to move in the shell, and when the range hood is used, the preset maximum position for oil smoke treatment is determined according to a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of the range hood, which are detected by the oil smoke detection device, so that the driving mechanism drives the fan assembly to move to the preset optimal position for oil smoke treatment in the shell to realize accurate smoking; the smoking effect can be guaranteed, the performance of the fan component can be maximized, and therefore energy consumption is reduced.
The invention provides a control method of a range hood, which comprises the following steps: acquiring a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of an oil smoke machine; determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values at different positions; and controlling a driving mechanism to drive the fan assembly to move to the preset optimal position.
The oil smoke is quickly sucked into the range hood to achieve the optimal smoking effect by acquiring a plurality of oil smoke concentration values at different positions of an air inlet at the bottom of the range hood, determining the preset optimal position for oil smoke treatment according to the plurality of oil smoke concentration values, and controlling the driving mechanism to drive the fan assembly to move to the preset optimal position to suck the oil smoke.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a structural diagram of a range hood provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a range hood provided by an embodiment of the invention;
fig. 3 is a top view of a range hood provided by an embodiment of the present invention;
fig. 4 is a bottom view of a range hood provided by an embodiment of the present invention;
fig. 5 is a logic control diagram of a control method of a range hood provided by an embodiment of the present invention;
fig. 6 is a schematic diagram of a moving area of a central point of a fan of a range hood according to an embodiment of the present invention.
Icon: 100-a fan assembly; 110-a fan; 120-a stationary shield; 200-a housing; 210-a box body; 220-a protective cover; 300-a first resilient member; 400-a second elastic member; 500-filtering with a filter screen; 610-a first pusher motor; 620-second push rod motor; 630-a third pusher motor; 640-a fourth pusher motor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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.
As shown in fig. 1 to 6, the range hood provided in this embodiment specifically includes a fan assembly 100, a driving mechanism, and a smoke detection device; the lampblack detection device is arranged at an air inlet at the bottom of the range hood and used for detecting a plurality of lampblack concentration values at different positions of the air inlet at the bottom of the range hood; fan subassembly 100 with actuating mechanism all sets up inside the shell of lampblack absorber, oil smoke detection device with actuating mechanism communication is connected, actuating mechanism with fan subassembly 100 is connected, actuating mechanism is used for the drive fan subassembly 100 is in remove in the shell, so that fan subassembly 100 can remove to the predetermined optimum position that the oil smoke was handled, predetermine optimum position basis a plurality of oil smoke concentration values of the different positions that oil smoke detection device detected are confirmed.
Preferably, the drive mechanism drives the fan assembly 100 to move within a horizontal plane inside the housing 200.
In this embodiment, actuating mechanism drive fan subassembly 100 removes in the horizontal plane, the plane of lampblack absorber bottom air inlet department is parallel with the horizontal plane that fan subassembly 100 removed in shell 200, drive assembly can drive fan subassembly 100 and do two-dimensional movement in the horizontal plane, thereby make fan subassembly 100 can remove with the corresponding position in plane of air inlet department in the horizontal plane, such benefit does, so that the air intake of fan subassembly 100 lower extreme can be in the preset optimum position of the oil smoke processing in this horizontal plane all the time.
It should be noted that, the driving mechanism can also drive the fan assembly 100 to move in the vertical plane or in the horizontal plane and the vertical plane, so that the height of the fan assembly 100 in the housing of the range hood can be changed or the height and the horizontal position can be adjusted, and thus the position of the fan assembly 100 in the space of the whole housing can be adjusted, which better adapts to the uneven distribution of the oil smoke, and improves the oil smoke treatment effect.
The oil smoke detection device is in communication connection with the driving mechanism, the driving mechanism is connected with the fan assembly 100 and can drive the fan assembly 100 to move in the shell, and when the device is used, a preset maximum position for oil smoke treatment is determined according to a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of the range hood detected by the oil smoke detection device and the plurality of oil smoke concentration values of the different positions, so that the driving mechanism drives the fan assembly 100 to move to a preset optimal position for oil smoke treatment in the shell, and accurate smoking is realized; not only can the smoking effect be guaranteed, but also the performance of the fan assembly 100 can be maximally used, so that the energy consumption is reduced.
In this embodiment, the preset optimal position may be determined by a method in the following range hood control method.
The preset optimal position may be a position at which the oil smoke concentration value detected by the oil smoke detection device is the maximum.
It should be noted that, the range of the horizontal plane in which the fan assembly 100 in the housing 200 moves corresponds to the area occupied by the plane in which the kitchen range is located, so that the lower port of the fan assembly 100 in the housing 200 can move above the kitchen range, thereby reducing the probability of diffusion and escape of the oil smoke, rapidly sucking up the oil smoke, and improving the smoking effect.
Further, the housing 200 includes a box 210 and a protective cover 220, wherein the lower end of the box 210 is connected with the upper end of the protective cover 220; the upper end of fan subassembly 100 pass through first elastic component 300 with the upper end of box 210 is connected, the lower extreme of fan subassembly 100 pass through second elastic component 400 with the lower extreme of safety cover 220 is connected, second elastic component 400 with the safety cover 220 forms the collection petticoat pipe of lampblack absorber.
Specifically, the first elastic member 300 and the second elastic member 400 may be of a folded structure, or may be made of a flexible material, which is capable of satisfying the movement of the blower assembly 100 in the housing 200, and at the same time, maintaining the seal with the housing 200.
In this embodiment, the lateral surface of second elastic component and the lower extreme circumferential connection of safety cover, the medial surface of second elastic component and the lower extreme circumferential connection of fan subassembly 100, and the lateral surface of second elastic component low rather than the medial surface, and by fan subassembly 100 towards cooking utensils direction, the second elastic component is uncovered, has better cigarette effect of holding together, so second elastic component and safety cover have formed the collection petticoat pipe of this lampblack absorber.
Preferably, the first elastic member 300 and the second elastic member 400 are both flame retardant rubber.
Further, the range hood also comprises a filter screen, and the filter screen is arranged at the bottom of the smoke collecting hood; the oil smoke detection device comprises a plurality of oil smoke concentration sensors which are arranged on the filter screen or the bottom surface of the smoke collecting cover at intervals;
the driving mechanism is used for driving the fan assembly 100 to move in a plane parallel to the bottom surface of the filter screen or the smoke collecting hood.
It should be noted that, when the filter screen is disposed at the outer side of the bottom of the protective cover of the range hood, the plurality of oil smoke concentration sensors are disposed on the filter screen, and when the filter screen is disposed inside the above-mentioned smoke collecting hood, the plurality of oil smoke concentration sensors are disposed on the bottom surface of the smoke collecting hood and are used for detecting the oil smoke concentration values at different positions of the air inlet in the same plane.
Furthermore, the filter screen is the rectangle structure, and is a plurality of oil smoke concentration sensor equipartition is in on the filter screen.
Specifically, the lower extreme of safety cover is equipped with filter screen 500, is provided with oil smoke detection device on the filter screen 500 for detect the oil smoke concentration distribution of cigarette machine bottom air inlet department, and remove fan subassembly 100 to the predetermined optimum position that the oil smoke of confirming was handled, thereby improve the effect of lampblack absorber oil absorption cigarette.
Preferably, a plurality of oil smoke concentration sensors are evenly distributed on the filter screen 500.
It should be noted that, preferably, the range hood of the movable fan 110 may further include a controller, the plurality of oil smoke concentration sensors are respectively connected with the driving mechanism through the controller, the controller may receive the oil smoke concentration values detected by the oil smoke concentration sensors, the controller compares the received oil smoke concentration values, obtains a preset optimal position for oil smoke treatment, and may send control information to the driving mechanism, control the driving mechanism to drive the fan assembly 100 to move to the preset optimal position, and efficiently suck the oil smoke in time.
In this embodiment, the number of oil smoke concentration sensor is four, and sets up respectively in the four corners of filter screen.
Specifically, the filter screen 500 is a rectangular structure, and the number of the oil smoke concentration sensors is four, and the four sensors are respectively arranged at four corners of the filter screen 500.
As shown in fig. 4, A, B, C, D four oil smoke concentration sensors are mounted on the filter screen 500, the oil smoke concentration value detected by the sensor a is a, the oil smoke concentration value detected by the sensor B is B, the oil smoke concentration value detected by the sensor C is C, and the oil smoke concentration value detected by the sensor D is D, when the range hood detects an oil smoke signal, the air volume of the range hood is firstly started, the added values of a + B, B + C, C + D, D + a, a + C and B + D are calculated, the maximum added value of the added values of a + B, B + C, C + D, D + a, a + C and B + D is selected, and the fan assembly 100 moves to a set position (realized by transverse movement and longitudinal movement) between the two oil smoke concentration sensors with the maximum added value; for example, the set position may be a midpoint of a straight line connecting the two soot sensors, or may be another point on a perpendicular line connecting the midpoint and the straight line. Then, comparing the oil smoke concentration values of the two oil smoke concentration sensors in the moving direction of the fan assembly 100, and moving the fan assembly 100 to the direction of the oil smoke concentration sensor corresponding to the larger value of the oil smoke concentration values, for example, when a + c is the largest, the two transverse push rod motors move the fan 110 to the middle point of the straight line connecting line of No. A, C oil smoke concentration sensors; when the transverse push rod motor moves, the oil smoke concentration values of the oil smoke concentration sensors corresponding to the values a and C are compared, when a is larger than C, the longitudinal push rod motors move the fan assembly 100 towards the A oil smoke concentration sensor, and otherwise, the fan assembly moves towards the C oil smoke concentration sensor; when the values of a and c are equal or the absolute value of the difference is less than a certain constant, the two longitudinal push rod motors do not move.
Certainly, the number of the oil smoke concentration sensors can be n, n is a natural number and n is larger than or equal to 3, when n is 3, concentration values obtained by the three oil smoke concentration sensors are x, y and z respectively, when the smoke machine detects an oil smoke signal, firstly, the air volume of the smoke machine is started, the sum of the oil smoke concentration values of x + y, y + z and x + z is calculated, the maximum value of the sum of the oil smoke concentration values of x + y, y + z and x + z is taken, and the fan assembly 100 moves towards the direction with the maximum concentration; then, comparing the concentrations of the two oil smoke concentration sensors in the moving direction of the fan assembly 100, and moving the fan assembly 100 to the direction with high concentration, for example, comparing the oil smoke concentration values of x and y when x + y is the maximum, and moving the fan 110 to the direction of the oil smoke concentration sensor corresponding to x by the push rod motor when x > y, otherwise, moving to the direction of the oil smoke concentration sensor corresponding to y; when the x and y values are equal or the absolute value of the difference is less than a certain constant, the push rod motor does not move.
Further, the filter screen is of a grid structure.
Specifically, in this embodiment, the filter screen is provided with a plurality of strip-shaped through holes to form a grid structure, and no matter how the fan assembly 100 in the housing 200 moves, the inlet of the oil smoke entering the air duct can be ensured to be large enough.
Further, the fan assembly 100 includes a stationary shroud and a fan 110; the driving mechanism comprises a first driving structure and a second driving structure, the fan 110 is arranged inside the fixed cover, one end of the first driving structure is arranged on the inner side wall of the fixed cover, and the other end of the first driving structure is connected with the fan 110 and used for driving the fan 110 to move in the fixed cover along a first direction; one end of the second driving structure is connected with the inner side wall of the housing, and the other end of the second driving structure is connected with the fixed cover and used for driving the fixed cover and the fan 110 to move together along a second direction; the first direction intersects the second direction.
In this embodiment, the first direction is perpendicular to the second direction.
Preferably, the first driving structure includes a first push rod motor 610 and a second push rod motor 620; the first push rod motor 610 is arranged on the inner side wall of one side of the fixed cover 120, and the second push rod motor 620 is arranged on the inner side wall of the other side of the fixed cover 120 and corresponds to the first push rod motor 610; the second driving structure includes a third push rod motor 630 and a fourth push rod motor 640; the third push rod motor 630 is disposed on an inner sidewall of one side of the housing 200, and the fourth push rod motor 640 is disposed on an inner sidewall of the other side of the housing 200, and corresponds to the third push rod motor 630.
In this embodiment, the first direction is a left-right direction, and the second direction is a front-back direction.
As shown in fig. 3, the blower assembly 100 is fixed inside the fixed hood 120 by two horizontal push rod motors (a first push rod motor 610 and a second push rod motor 620) to control the blower 110 to move left and right, and the outer shell 200 of the range hood is spaced from the fixed hood 120 in the longitudinal direction; the fixed cover 120 is fixed on the inner side wall of the housing 200 by two longitudinal push rod motors (a third push rod motor 630 and a fourth push rod motor 640) and can control the fixed cover 120 and the fan 110 to move back and forth. The fixed cover 120 and the housing 200 have a gap in the transverse direction, and can move in the transverse direction and the longitudinal direction simultaneously. The driving mechanism pushes the movable fan 110 to a corresponding position according to the push rod motor in a corresponding direction when the movable fan needs to move according to the oil smoke signal provided by the oil smoke detection device, so that the effect of directly sucking the oil smoke into the flue and rapidly discharging the oil smoke is achieved.
When the oil smoke concentration at the upper left corner of fig. 3 is stronger, the third push rod motor 630 shortens by the distance equal to the extension distance of the fourth push rod motor 640, the first push rod motor 610 shortens by the distance equal to the extension distance of the second push rod motor 620, and the fan 110 is moved to the position where the oil smoke concentration at the upper left corner is denser; when the oil smoke concentration in the upper right corner of fig. 3 is stronger, the shortening distance of the third push rod motor 630 is equal to the lengthening distance of the fourth push rod motor 640, the lengthening distance of the first push rod motor 610 is equal to the shortening distance of the second push rod motor 620, and the fan 110 is moved to the position where the oil smoke concentration in the upper right corner is stronger; when the oil smoke concentration at the lower left corner of fig. 3 is stronger, the extension distance of the third push rod motor 630 is equal to the shortening distance of the fourth push rod motor 640, the shortening distance of the first push rod motor 610 is equal to the extension distance of the second push rod motor 620, and the fan 110 is moved to a position where the oil smoke concentration at the lower left corner is thicker; when the oil smoke concentration in the lower right corner of fig. 3 is stronger, the extension distance of the third push rod motor 630 is equal to the shortening distance of the fourth push rod motor 640, the extension distance of the first push rod motor 610 is equal to the shortening distance of the second push rod motor 620, and the fan 110 is moved to the position where the oil smoke concentration in the lower right corner is thicker.
As shown in fig. 6, in the present embodiment, O is the central position of the fan 110, the outer large rectangle represents the inner contour line of the housing 200, the displacement area of the central point of the fan 110 is the middle shaded portion, the length of the fan 110 is L, the width of the fan 110 is M, and the distances between the small rectangle (shaded portion) and the large rectangle are M1The left and right distances between the small rectangle (shaded part) and the large rectangle are L1. In this example M1Is 0.5M, L1It was 0.5L. The housing 200 may have a circular structure, and the corresponding fan 110 may have a circular shape.
The invention provides a control method of a range hood, which comprises the following steps: acquiring a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of an oil smoke machine; determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values at different positions; and controlling a driving mechanism to drive the fan assembly 100 to move to the preset optimal position.
The oil smoke can be quickly sucked into the range hood to achieve the optimal smoking effect by acquiring a plurality of oil smoke concentration values at different positions of an air inlet at the bottom of the range hood, determining the preset optimal position for oil smoke treatment according to the plurality of oil smoke concentration values, and controlling the driving mechanism to drive the fan assembly 100 to move to the preset optimal position for oil smoke suction.
Further, the step of determining the preset optimal position for the oil smoke treatment according to the plurality of oil smoke concentration values at different positions comprises: and calculating the added value of any two oil smoke concentration values in the plurality of oil smoke concentration values, and comparing all the added values to obtain the maximum added value.
And controlling the driving mechanism to drive the fan assembly 100 to move to the middle point of the straight line connecting line of the two detection positions corresponding to the maximum added value or to move to a set straight line which passes through the middle point of the straight line connecting line of the two detection positions corresponding to the maximum added value and is perpendicular to the straight line.
It should be noted that the driving mechanism may drive the fan assembly 100 to move to the midpoint position of the line connecting the two detection positions, or may move to any point on a set straight line, where the set straight line passes through the midpoint of the line connecting the two detection positions, and a straight line perpendicular to the line connecting the two detection positions is the same, that is, the straight line distance from the position of the fan assembly 100 to the two detection positions is the same.
Further, the step of controlling the driving mechanism to drive the fan assembly 100 to move to the midpoint of the line connecting the two detection positions corresponding to the maximum added value or to a set straight line passing through the midpoint of the line connecting the two detection positions corresponding to the maximum added value and perpendicular to the straight line is performed after the step of: comparing the oil smoke concentration values of the two detection positions corresponding to the maximum added value; when the oil smoke concentration values of the two detection positions are equal, the fan assembly 100 does not move; when the oil smoke concentration value of one detection position is larger than that of the other detection position, the driving mechanism is controlled to drive the fan assembly 100 to move a set unit distance to the detection position with a larger oil smoke concentration value.
Further, when the oil smoke concentration value of one of the detection positions is greater than that of the other detection position, the step of controlling the driving mechanism to drive the fan assembly 100 to move to the detection position with the larger oil smoke concentration value by the set unit distance further includes that when the absolute value of the difference value of the oil smoke concentration values of the two detection positions is smaller than the preset value, the fan assembly 100 does not move.
Specifically, a plurality of oil smoke concentration values at different positions are detected by a plurality of oil smoke concentration sensors arranged at an air inlet at the bottom of the range hood, then any two values from the plurality of oil smoke concentration values are added in pairs, the maximum value added value in the added values is obtained, then the fan assembly 100 is controlled to move to a certain position between two oil smoke concentration sensors corresponding to the maximum added value (which can be the middle point of the linear connecting line of the two oil smoke concentration sensors or pass through the middle point of the linear connecting line of the two detection positions corresponding to the maximum added value and is perpendicular to the straight line), then the two oil smoke concentration values are compared, and when the two values are equal, the fan assembly 100 does not move; when the two values are not equal, the fan assembly 100 moves a set unit distance to the position corresponding to the oil smoke concentration sensor with a large concentration.
It should be noted that, when detecting that the oil smoke concentration drops to a certain value or the user shuts down, the driving mechanism drives the fan assembly 100 to reset, and the position may be any set position in the horizontal plane.
As shown in fig. 5, the logic control of the control method of the range hood provided by this embodiment is as follows:
1) electrifying the smoke machine, and starting the detection probe to work; whether the oil smoke overflows is detected, if not, the previous step is returned.
Specifically, the detection probe can be an infrared sensor/oil smoke concentration sensor, and when the detection probe detects temperature/oil smoke, the range hood is started and the range of the range hood is started.
2) Starting a range of a smoke machine, and monitoring the oil smoke concentration in real time by n oil smoke concentration sensors; selecting any two values from the n oil smoke concentration values; adding two by two to obtain Cn 2Adding the value to obtain Cn 2And if the maximum value is not obtained, returning to the step of starting the range hood, monitoring the oil smoke concentration in real time by the n oil smoke concentration sensors, and if the maximum value is obtained, moving the fan assembly 100 to a preset optimal position.
n oil smoke concentration sensors start to detect oil smoke so as to obtain n oil smoke concentration values (n is a natural number and is more than or equal to 3); the smoke concentration sensor sends n oil smoke concentration values to the controller, any two of the n oil smoke concentration values in the controller are summed in pairs to obtain Cn 2The summed values.
And taking the maximum added value in the summation values to obtain the positions of the two oil smoke sensors corresponding to the maximum value.
The controller sends control information to the push rod motor of the driving mechanism, and the push rod motor starts to operate to move the fan 110 to the preset optimal position between the two oil smoke sensor positions. Of course, the predetermined position may also be an extension of the midpoint.
3) Obtaining two oil smoke concentration sensor positions corresponding to the maximum value and corresponding oil smoke concentration values, for example: the concentration values are A and B, respectively.
4) Comparing and calculating the sizes of A and B; and controlling the driving mechanism to drive the fan assembly 100 to move according to the comparison result.
If A-B is equal to 0, the fan assembly 100 does not act; judging that fan subassembly 100 is located and predetermine the optimum position and carry out the oil absorption cigarette work, can make the oil smoke inhale fast to the lampblack absorber in, and make outside oil smoke concentration keep in good state, fan subassembly 100 keeps current position this moment.
If A-B is larger than 0, the fan assembly 100 moves to the position of the concentration sensor A by a set unit distance, the fan assembly 100 is controlled to move to the direction of the oil smoke concentration sensor with the larger concentration value A, the moving distance is the set unit distance, and the position is used as the latest preset optimal value.
If A-B is less than 0, the fan assembly 100 moves to the position of the concentration sensor B by the set unit distance, the fan assembly 100 is controlled to move to the direction of the oil smoke concentration sensor with the larger concentration value B, and the moving distance is the set unit distance.
5) When the smoke machine closing/oil smoke concentration value is detected to be less than a certain constant, the fan assembly 100 performs reset action.
In summary, the range hood provided by the invention comprises a fan assembly 100, a driving mechanism and an oil smoke detection device; the lampblack detection device is arranged at an air inlet at the bottom of the lampblack machine and used for detecting a plurality of lampblack concentration values at different positions of the air inlet at the bottom of the lampblack machine; fan subassembly 100 with actuating mechanism all sets up inside the shell of lampblack absorber, oil smoke detection device with actuating mechanism communication is connected, actuating mechanism with fan subassembly 100 is connected, actuating mechanism is used for the drive fan subassembly 100 is in remove in the shell, so that fan subassembly 100 can remove to the predetermined optimum position that the oil smoke was handled, predetermine optimum position basis a plurality of oil smoke concentration values of the different positions that oil smoke detection device detected are confirmed. The driving mechanism is connected with the fan assembly 100 and can drive the fan assembly 100 to move in the shell, and when the device is used, the preset maximum position for oil smoke treatment is determined according to a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of the range hood, which are detected by the oil smoke detection device, and the plurality of oil smoke concentration values of the different positions, so that the driving mechanism drives the fan assembly 100 to move to the preset optimal position for oil smoke treatment in the shell to realize accurate smoking; not only can the smoking effect be guaranteed, but also the performance of the fan assembly 100 can be maximally used, so that the energy consumption is reduced.
The invention provides a control method of a range hood, which comprises the following steps: acquiring a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of an oil smoke machine; determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values at different positions; and controlling a driving mechanism to drive the fan assembly 100 to move to the preset optimal position. The oil smoke can be quickly sucked into the range hood to achieve the optimal smoking effect by acquiring a plurality of oil smoke concentration values at different positions of an air inlet at the bottom of the range hood, determining the preset optimal position for oil smoke treatment according to the plurality of oil smoke concentration values, and controlling the driving mechanism to drive the fan assembly 100 to move to the preset optimal position for oil smoke suction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (13)
1. A range hood is characterized by comprising a fan assembly (100), a driving mechanism and an oil smoke detection device;
the lampblack detection device is arranged at an air inlet at the bottom of the range hood and used for detecting a plurality of lampblack concentration values at different positions of the air inlet at the bottom of the range hood;
fan subassembly (100) with actuating mechanism all sets up inside shell (200) of lampblack absorber, oil smoke detection device with actuating mechanism communication is connected, actuating mechanism with fan subassembly (100) are connected, actuating mechanism is used for the drive fan subassembly (100) are in remove in shell (200), so that fan subassembly (100) can remove to the predetermined optimum position that the oil smoke was handled, predetermine optimum position according to a plurality of oil smoke concentration values of the different positions that oil smoke detection device detected are confirmed.
2. A range hood according to claim 1, characterized in that the drive mechanism drives the fan assembly (100) to move in a horizontal plane inside the housing (200).
3. A range hood according to claim 1, characterized in that the housing (200) comprises a box body (210) and a protective cover (220), the lower end of the box body (210) being connected with the upper end of the protective cover (220); the upper end of fan subassembly (100) through first elastic component (300) with the upper end of box (210) is connected, the lower extreme of fan subassembly (100) pass through second elastic component (400) with the lower extreme of safety cover (220) is connected, second elastic component (400) with safety cover (220) form the collection petticoat pipe of lampblack absorber.
4. A range hood according to claim 3, characterized in that it further comprises a filter screen (500), said filter screen (500) being provided at the bottom of said fume collecting hood;
the oil smoke detection device comprises a plurality of oil smoke concentration sensors which are arranged on the filter screen (500) or the bottom surface of the smoke collecting cover at intervals;
the driving mechanism is used for driving the fan assembly (100) to move in a plane parallel to the bottom surface of the filter screen (500) or the smoke collecting hood.
5. A range hood according to claim 4, characterized in that the filter screen (500) is rectangular structure, and a plurality of the oil smoke concentration sensors are uniformly distributed on the filter screen (500).
6. A range hood as claimed in claim 5, characterized in that the number of said smoke concentration sensors is four and arranged at the four corners of said filter screen (500) respectively.
7. A hood according to any of the claims from 4 to 6, characterized in that said screen (500) is of a grid structure.
8. A range hood according to claim 1, characterized in that the fan assembly (100) comprises a stationary hood (120) and a fan (110);
the driving mechanism comprises a first driving structure and a second driving structure, the fan (110) is arranged inside the fixed cover (120), one end of the first driving structure is arranged on the inner side wall of the fixed cover (120), and the other end of the first driving structure is connected with the fan (110) and used for driving the fan (110) to move along a first direction;
one end of the second driving structure is connected with the inner side wall of the shell (200), and the other end of the second driving structure is connected with the fixed cover (120) and used for driving the fixed cover (120) and the fan (110) to move along a second direction;
the first direction intersects the second direction.
9. A range hood, according to claim 8, characterized in that said first driving structure comprises a first push rod motor (610) and a second push rod motor (620); the first push rod motor (610) is arranged on the inner side wall of one side of the fixed cover (120), and the second push rod motor (620) is arranged on the inner side wall of the other side of the fixed cover (120) and corresponds to the first push rod motor (610);
the second driving structure comprises a third push rod motor (630) and a fourth push rod motor (640); the third push rod motor (630) is arranged on the inner side wall of one side of the shell (200), and the fourth push rod motor (640) is arranged on the inner side wall of the other side of the shell (200) and corresponds to the third push rod motor (630).
10. A control method of a range hood is characterized by comprising the following steps:
acquiring a plurality of oil smoke concentration values of different positions at an air inlet at the bottom of an oil smoke machine;
determining a preset optimal position for oil smoke treatment according to a plurality of oil smoke concentration values at different positions;
and controlling a driving mechanism to drive the fan assembly (100) to move to the preset optimal position.
11. The method of controlling a range hood according to claim 10, wherein the step of determining a preset optimal position for soot treatment according to a plurality of soot concentration values at different positions comprises:
calculating the added value of any two oil smoke concentration values in the plurality of oil smoke concentration values, and comparing all the added values to obtain the maximum added value;
and controlling the driving mechanism to drive the fan assembly (100) to move to the middle point of the straight line connecting line of the two detection positions corresponding to the maximum addition value or to move to a set straight line which passes through the middle point of the straight line connecting line of the two detection positions corresponding to the maximum addition value and is perpendicular to the straight line.
12. The control method of a range hood according to claim 11, wherein the controlling the driving mechanism drives the fan assembly (100) to move to a midpoint of a straight line connecting lines of the two detection positions corresponding to the maximum addition value or to a set straight line passing through the midpoint of the straight line connecting lines of the two detection positions corresponding to the maximum addition value and perpendicular to the straight line is performed after the step of:
comparing the oil smoke concentration values of the two detection positions corresponding to the maximum added value;
when the oil smoke concentration values of the two detection positions are equal, the fan assembly (100) does not move;
when the oil smoke concentration value of one detection position is larger than that of the other detection position, the driving mechanism is controlled to drive the fan assembly (100) to move a set unit distance to the detection position with the larger oil smoke concentration value.
13. The method for controlling a range hood according to claim 12, wherein when the soot concentration value of one of the detection positions is greater than that of the other detection position, the step of controlling the driving mechanism to drive the fan assembly (100) to move for the set unit distance to the detection position with the greater soot concentration value further comprises that when the absolute value of the difference value of the soot concentration values of the two detection positions is smaller than a preset value, the fan assembly (100) does not move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479421.9A CN112393308A (en) | 2020-12-15 | 2020-12-15 | Range hood and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479421.9A CN112393308A (en) | 2020-12-15 | 2020-12-15 | Range hood and control method thereof |
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| CN112393308A true CN112393308A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011479421.9A Pending CN112393308A (en) | 2020-12-15 | 2020-12-15 | Range hood and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674022A (en) * | 2022-05-31 | 2022-06-28 | 杭州老板电器股份有限公司 | Fan mechanism for range hood and range hood |
| WO2023159719A1 (en) * | 2022-02-28 | 2023-08-31 | 芜湖美的智能厨电制造有限公司 | Range hood |
-
2020
- 2020-12-15 CN CN202011479421.9A patent/CN112393308A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023159719A1 (en) * | 2022-02-28 | 2023-08-31 | 芜湖美的智能厨电制造有限公司 | Range hood |
| CN114674022A (en) * | 2022-05-31 | 2022-06-28 | 杭州老板电器股份有限公司 | Fan mechanism for range hood and range hood |
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