CN112797462A - Range hood control method - Google Patents
Range hood control method Download PDFInfo
- Publication number
- CN112797462A CN112797462A CN202110061901.1A CN202110061901A CN112797462A CN 112797462 A CN112797462 A CN 112797462A CN 202110061901 A CN202110061901 A CN 202110061901A CN 112797462 A CN112797462 A CN 112797462A
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- flue
- oil smoke
- range hood
- concentration
- value
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000000779 smoke Substances 0.000 claims abstract description 138
- 230000008859 change Effects 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000006233 lamp black Substances 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims description 17
- 238000010411 cooking Methods 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 11
- 230000001174 ascending effect Effects 0.000 description 9
- 238000005070 sampling Methods 0.000 description 5
- 230000000391 smoking effect Effects 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention provides a control method of a range hood, wherein the range hood is provided with a lampblack sensor for sensing the concentration of lampblack and a second flue with an oil filter screen, the second flue is connected with the flue in a liftable mode, and the method comprises the following steps: s1, starting the range hood; s2, detecting the surrounding oil smoke concentration at regular time by an oil smoke sensor; s3, comparing the change values of the two adjacent oil smoke concentrations with a preset concentration difference sensitive value; and S4, controlling the second flue to lift according to the comparison result. By the method, the oil smoke sensor samples the oil smoke concentration detection value at regular time, and the second flue is adjusted in height to ensure that the second flue always aligns the negative pressure region to the highest position of the oil smoke concentration, so that the oil smoke is sucked away from the pot mouth and is prevented from being diffused.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a range hood control method.
Background
In the cooking of people's daily life, the lampblack absorber has played very important effect, and the regulation of its installation back generally can't carry out the height again. If a user replaces cookware or a cooker with different heights, even if relatively large oil smoke is generated during cooking, the oil smoke is likely to escape because the oil smoke is not in the optimal negative pressure area of the range hood.
However, the following defects are generally existed in the prior art:
at present, no range hood capable of intelligently controlling the height of a range hood oil screen according to the concentration of oil smoke so as to adjust the smoking effect exists, and only a case for adjusting the height of a smoke guide plate exists. The height of the common range hood is difficult to adjust again after installation, and if a user replaces a cooker or a cooker, even the oil smoke is too violent during cooking, the oil smoke can escape from a negative pressure area of the range hood. The lampblack absorber of adjustment smoke deflector height in the existing market can only adjust the negative pressure region through adjustment smoke deflector height, not only adjusts a small amount but also can't be suitable for most of the circumstances according to oil smoke concentration intelligent regulation.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a range hood control method, a control algorithm for adjusting the height of the second flue by regularly monitoring the concentration of the oil smoke can adapt to the use conditions of different cookers and cookers of users, and can ensure that the negative pressure area is directly close to the oil smoke generation area to prevent the oil smoke from escaping.
In order to solve the technical problems, the invention adopts the technical scheme that:
a control method of a range hood, the range hood is provided with a lampblack sensor for sensing lampblack concentration and a second flue with an oil filter screen, the second flue is connected with the flue in a liftable mode, and the method comprises the following steps:
s1, starting the range hood;
s2, detecting the surrounding oil smoke concentration at regular time by an oil smoke sensor;
s3, comparing the change values of the two adjacent oil smoke concentrations with a preset concentration difference sensitive value;
and S4, controlling the second flue to lift according to the comparison result.
Further, in step S3, if the variation value is greater than the preset concentration difference sensitivity value, the second flue is driven to move downward by a certain distance;
if the variation value is less than or equal to the preset concentration difference sensitive value and greater than the negative concentration difference sensitive value, maintaining the current height of the second flue;
and if the change value is smaller than the negative preset concentration difference sensitive value, driving the second flue to ascend for a certain distance.
Further, in step S4, the method includes the steps of: and driving the second smoke channel to ascend and descend at equal intervals every time a detection period passes.
Further, in step S4, the method further includes: in the detection process, the second flue continuously rises and does not exceed the highest position of the second flue;
or the second flue continuously descends and does not exceed the lowest position of the second flue.
Further, in step S2, the timing detection includes:
the oil smoke sensor samples once after every interval.
Further, in the process of ascending or descending movement of the second flue, the movement range is the distance between the highest position and the lowest position.
Further, the oil smoke sensor continues to detect the concentration of surrounding oil smoke at certain intervals, and if the change value of the concentration of the adjacent two oil smoke is larger than the preset concentration difference sensitive value, the second flue is driven to move downwards for a certain distance until the second flue descends to a position not exceeding the lowest position.
Further, the oil smoke sensor continues to detect the concentration of surrounding oil smoke at certain intervals, and if the change value of the concentration of the adjacent two oil smoke is smaller than or equal to a preset concentration difference sensitive value and larger than a negative concentration difference sensitive value, the current height of the second flue is continuously maintained.
Further, the oil smoke sensor continues to detect the concentration of surrounding oil smoke at certain intervals, and if the change value is smaller than a negative preset concentration difference sensitive value, the second flue is driven to continuously rise for a certain distance until the second flue rises to a position not exceeding the highest position.
Further, after cooking is finished, when the range hood sensor detects that the current oil smoke concentration is 0, the second flue is driven to ascend to the initial position.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the oil smoke sensor samples the oil smoke concentration detection value at regular time, and the second flue is adjusted in height to ensure that the second flue always aligns the negative pressure region to the highest position of the oil smoke concentration, so that the oil smoke is sucked away from the pot mouth, and the oil smoke is prevented from being diffused.
2. The sampling interval period of the two adjacent oil smoke sensors is second, so that the second flue can be ensured to always align the negative pressure area to the highest position of the oil smoke concentration, the maximum smoking effect is achieved, meanwhile, the highest position of the oil smoke concentration can be judged accurately all the time, and the user experience is improved.
3. According to the individual requirements of users, the sampling interval period of the oil smoke sensor, the lifting precision of the second flue, the lifting of the second flue to the lowest position or the highest position and the concentration difference sensitive value of the oil smoke sensor are all adjustable, so that the oil smoke sensor can be suitable for different range hoods and home users.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without paying any inventive effort. In the drawings:
FIG. 1 is a flow chart diagram of a range hood control method in an embodiment of the invention;
FIG. 2 is a schematic view of an embodiment of the present invention in which the second chimney is lowered to a lowermost position;
FIG. 3 is a schematic diagram of the second chimney that can be lifted to the highest position according to the embodiment of the present invention.
Description of the main elements in the figures: 1. a flue; 2. a second flue; 3. an oil filter screen; 4. a smoke collecting hood; 5. a control panel.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to a specific embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 2 and 3, in the embodiment of the invention, the range hood includes a flue 1, a second flue 2 is installed in the flue 1, the second flue 2 can discharge oil smoke quickly, a slide rail is installed in the flue 1, a driving mechanism is installed at the top end of the slide rail, the driving mechanism can drive the second flue 2 to move up and down along the slide rail, the slide rail is connected with the second flue 2 through a slide block, and the driving mechanism can be a hydraulic telescopic rod or an electric telescopic rod in the actual application process.
An oil filter screen 3 is installed at one end, far away from the driving mechanism, of the second flue 2, the oil filter screen 3 is funnel-shaped and has an oil filtering function, an oil cup is arranged at one end, far away from the second flue 2, of the oil filter screen 3, and oil stains filtered by the oil filter screen 3 can be collected by the oil cup. When the device works, the filtered oil stain enters the flue 1 under the action of gravity and flows into the oil cup from the flue 1 to be collected.
The collection petticoat pipe 4 is installed to the bottom of flue 1, and the shape of collection petticoat pipe 4 is the arc, is provided with control panel 5 on the collection petticoat pipe 4, is equipped with control switch on the control panel 5, control panel 5 sets up in collection petticoat pipe 4 front side, 5 electric connection of control panel in controller is through setting up 5 convenient to use person's operations of control panel, and then is convenient for control range hood's operation.
Specifically, a start button and a second flue automatic lifting function button are arranged on the control panel 5. The starting button is electrically connected with the fan, and the driving mechanism is electrically connected with the second flue and has an automatic lifting function. The fan can be controlled to start by pressing the start button, and the second flue 2 can be controlled to start by pressing the second flue automatic lifting function button.
When the range hood is used, a user can start the range hood through the control panel 5 according to use requirements, the descending height of the second flue 2 is changed through the driving mechanism, the oil filter screen 3 at the bottom end of the second flue 2 has a certain oil filtering function, oil filtered by the oil filter screen 3 can be collected by the oil cup, and the oil cup is in threaded connection with the oil filter screen 3, so that the range hood is convenient for a user to detach and clean. When the range hood works, the fan is started, negative pressure is generated at the air inlet to suck indoor oil smoke, the oil smoke passes through the oil filter screen 3, oil drops or other pollutants contained in the oil smoke can be filtered by the oil filter screen 3, then the oil smoke enters the flue 1, and finally the oil smoke is discharged out of the range hood.
As shown in fig. 1, in the embodiment of the present invention, the range hood includes a range hood and a concentration sensor for detecting gas below the range hood, the range hood includes a smoke collection hood 4, a controller is disposed in the smoke collection hood 4, the controller is electrically connected to the concentration sensor, so that the controller can control the action of the driving mechanism according to data detected by the smoke sensor, and the control method includes the following steps:
s1, starting the range hood;
s2, detecting the surrounding oil smoke concentration at regular time by an oil smoke sensor;
s3, comparing the change values of the two adjacent oil smoke concentrations with a preset concentration difference sensitive value;
and S4, controlling the second flue to lift according to the comparison result.
The working control method of the range hood comprises an opening process and a closing process, wherein the opening process is shown in figure 1, after the range hood is opened for the first time, a concentration value detected for the first time is compared with 0, a lampblack sensor detects whether lampblack is generated around, when the lampblack sensor detects lampblack, a controller controls a driving mechanism, a second flue 2 is controlled to move downwards for a certain distance through the driving mechanism, after an interval period, the lampblack sensor continues sampling, the controller analyzes and compares a change value of the concentration of the lampblack in two adjacent times with a preset concentration difference sensitive value, and if the change value is larger than the preset concentration difference sensitive value, the second flue 2 is driven to move downwards for a certain distance; if the variation value is less than or equal to the preset concentration difference sensitive value and greater than the negative concentration difference sensitive value, maintaining the current height of the second flue 2; and if the change value is smaller than the negative preset concentration difference sensitive value, driving the second flue 2 to ascend for a certain distance.
In the embodiment of the invention, when the user starts the automatic lifting function of the second flue, the concentration difference sensitive value is input into the range hood to meet the individual requirements of different users, the concentration difference sensitive value is P, and the optimal value range is 2mg/m3～10mg/m3And set to integers. In actual use, two adjacent oil smoke concentration change values may be positive numbers or negative numbers, namely, the oil smoke concentration is increased or decreased along with the use time, so that the change range of the concentration difference sensitive value is expanded when the change values of the two adjacent oil smoke concentrations are set to be compared with the preset concentration difference sensitive value. For example, the user sets the concentration difference sensitivity value to 3mg/m3If the variation value is more than 3mg/m3The second flue 2 descends; if it is more than-3 mg/m3Less than or equal to 3mg/m3The second flue 2 maintains the current height, if less than-3 mg/m3And the second flue 2 ascends.
If the variation value of the oil smoke concentration generated by the user in the cooking process fluctuates greatly, the concentration difference sensitive value is set to be smaller, at the moment, the oil smoke sensor is sensitive, the controller can immediately drive the second flue 2 to ascend or descend after the variation of the oil smoke concentration is detected, and the negative pressure area is always aligned to the highest position of the oil smoke concentration and is kept at the optimal smoking position; if the variation value of the oil smoke concentration generated by the user in the cooking process fluctuates little, the concentration difference sensitive value is recommended to be set to be large, and the concentration of the oil smoke sensor is not particularly sensitive at the moment, so that the controller cannot drive the second flue 2 to move up and down even if the oil smoke concentration difference value is generated in the cooking process, and only when the variation value of the oil smoke concentration exceeds the preset concentration difference sensitive value range, the controller can drive the second flue 2 to move up and down.
The user sets the concentration difference sensitive value by self-definition, so that the cooking requirements of different users on different cooking are met, the user experience is improved, and the service life of the range hood is prolonged. If the concentration difference sensitive value is in the sensitive value range for a long time, the service life of the range hood can be shortened.
In the embodiment of the present invention, the user may further set the second flue lifting precision, and in step S4, the method includes the following steps: and driving the second flue 2 to ascend and descend at equal intervals every time of a detection period, wherein the ascending and descending precision of the second flue, namely the ascending and descending distance of each time is X, the unit is centimeter, namely the ascending and descending distance of the second flue 2 controlled by the driving mechanism every time of the detection period, and the ascending and descending distances are equal every time. The smaller the numerical value set by the user is, the shorter the ascending or descending distance of the second flue 2 per one cycle is, if the set numerical value is larger, the longer the ascending or descending distance of the second flue 2 per one cycle is, the larger the numerical value adjustment is if the fluctuation of the change value of the sensitive value of the adjacent oil smoke concentration in the cooking process is large, so that the second flue 2 can be ensured to quickly reach the optimal smoking position after passing through a detection cycle, and the highest position of the oil smoke concentration is aligned to the negative pressure region.
In the embodiment of the invention, a user can set the lowest position H1 and the highest position H2 of the second flue 2, the unit is meter, the lowest position is the position where the negative pressure area is adjusted to the highest oil smoke concentration during the descending process of the second flue 2, and the descending process of the second flue 2 cannot exceed the lowest position H1; the highest position is the position where the negative pressure area is adjusted to the highest position of the oil smoke concentration in the ascending process of the second flue 2, and the ascending process of the second flue 2 cannot exceed the highest position H2. During the detection process, the second flue 2 will continue to rise or fall every time a period passes until the lowest or highest position of the second flue 2 is reached. The lowest position or the highest position of the second flue 2 is arranged on the control panel 5 in advance, so that the negative pressure area can be effectively controlled to be aligned to the highest position of the oil smoke concentration. Simultaneously, after changing the pan, through setting up the second flue 2 minimum or highest position, reach better smoking effect.
Meanwhile, during the up and down movement of the second chimney 2, the moving range of the second chimney 2 is the distance between the highest position and the lowest position, i.e. the difference between H2 and H1.
If the oil smoke sensor detects that the oil smoke concentration at the lower end of the range hood is suddenly increased and breaks through a preset value, the controller can forcibly control the driving mechanism to move downwards to the second flue 2, and the situation that the negative pressure area can be directly aligned to the highest position of the oil smoke concentration is guaranteed.
In another embodiment, the range hood is further provided with a detection module, the detection module detects the shape of a pot below the smoke suction hood, the height of the pot is calculated according to the shape of the pot, and therefore the distance between the smoke collection hood 4 and the pot below the smoke collection hood is calculated, and meanwhile, after the pot is replaced every time, the detection module can detect the distance between the smoke collection hood 4 and the pot below the smoke collection hood again, and therefore a user is reminded to adjust the lowest position and the highest position of the second flue 2 in real time.
When the automatic lifting function of the second flue is started each time, the sampling interval period of the oil smoke sensor, the concentration difference sensitive value, the lifting precision of the second flue, the highest position of the second flue and the lowest position of the second flue need to be preset in advance, so that when the range hood works, the controller can analyze the difference value between the concentration difference sensitive value and the oil smoke concentration sensitive values of two adjacent times, and gradually ascends, descends or maintains the current position through the lifting precision of the second flue, and the second flue 2 is ensured to adjust the negative pressure area to the highest position of the oil smoke concentration at any time. The sampling interval period of the oil smoke sensor is K, the unit is second, if the selected time is shorter, the oil smoke can be absorbed by the second flue 2 more accurately, and meanwhile, the second flue 2 can be kept at the optimal position all the time, so that the oil absorption efficiency can be ensured.
The oil smoke sensor continues to detect the concentration of surrounding oil smoke after a few seconds, and if the change value of the concentration of two adjacent oil smoke is larger than the preset concentration difference sensitive value, the second flue 2 is driven to move downwards for a certain distance until the second flue 2 descends to a position not exceeding the lowest position; if the variation value is less than or equal to the preset concentration difference sensitive value and greater than the negative concentration difference sensitive value, the current height of the second flue 2 is continuously maintained; and if the change value is smaller than the negative preset concentration difference sensitive value, driving the second flue 2 to continuously rise for a certain distance until the second flue 2 rises to a position not exceeding the highest position. Therefore, the second flue 2 can be ensured to be in a dynamic process all the time, and the negative pressure area is adjusted to the highest oil smoke concentration area all the time through dynamic change, so that various requirements of different users are met.
After cooking is finished, if the range hood sensor detects that the current oil smoke concentration is 0, the controller drives the second flue 2 to ascend to the initial position.
When the oil smoke is dense, the oil smoke internal pressure is high, if the second flue 2 is located at a high position, the oil smoke with the high internal pressure can escape from the bottom of the second flue 2, so that the second flue 2 should be located at the lowest position when the oil smoke is dense, and the oil smoke can be prevented from escaping to the greatest extent.
When the concentration of the oil smoke is low, the internal pressure of the oil smoke is low, the temperature of the oil smoke is high, the oil smoke can move upwards automatically, but when the oil smoke moves to a certain height, the temperature of the oil smoke is reduced, the buoyancy of air to the oil smoke is reduced, and the oil smoke begins to have a tendency of diffusing at four places; on the other hand, the air inlet of the range hood and the smoke collecting hood 4 have large volumes, the original aerodynamic characteristics of the oil smoke are damaged, the oil smoke is easy to diffuse at a place close to the air inlet, and therefore the second flue 2 needs to collect and guide the oil smoke at a higher position; if the second flue 2 is located at a lower position, the second flue 2 is far away from the air inlet, so that the airflow emitted by the second flue 2 is difficult to rectify the oil smoke at a higher position when the wind power is small, and the rectification function can be realized when the wind power is large.
The air quantity of the air outlet and the height of the second flue 2 can be combined, and the air quantity and the position are arranged and combined in different ways by utilizing the respective characteristics so as to realize the optimal control effect; for example, when the concentration of the oil smoke is large, the second flue 2 is located at the lowest position and the air volume at the air outlet reaches the maximum.
According to the control method of the range hood, when oil smoke needs to be sucked, the fan starts to operate after the starting signal is acquired, the fan is used for providing power for the flow of the oil smoke, and the oil smoke can conveniently enter the flue from the air inlet. According to the user demand, open second flue automatic rising function for the oil smoke passes through the flue again after the oil cleaner screen 3 filters earlier, and the fan can further pass through the air outlet with the oil smoke of passing through and discharge. Because the oil smoke is filtered by the oil filter 3 before being discharged from the air outlet through the fan, pollutants in the oil smoke are effectively filtered, and the pollution of the oil smoke discharged from the air outlet to the outdoor environment is further reduced. Meanwhile, as the fan absorbs the oil smoke through the second flue 2, the efficiency of sucking the oil smoke can be improved, the oil smoke capturing efficiency is improved, and the pollution of the oil smoke to the kitchen environment is reduced.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiment, it is not intended to limit the present invention, and those skilled in the art can make various changes, substitutions and alterations without departing from the technical scope of the present invention.
Claims (10)
1. A control method of a range hood, the range hood is provided with a lampblack sensor for sensing lampblack concentration and a second flue (2) with an oil filter screen (3), the second flue (2) is connected with the second flue (2) in a liftable mode, and the method is characterized by comprising the following steps:
s1, starting the range hood;
s2, detecting the surrounding oil smoke concentration at regular time by an oil smoke sensor;
s3, comparing the change values of the two adjacent oil smoke concentrations with a preset concentration difference sensitive value;
and S4, controlling the second flue to lift according to the comparison result.
2. The range hood control method according to claim 1, wherein in step S3, if the variation value is greater than a preset concentration difference sensitive value, the second flue (2) is driven to move downwards for a certain distance;
if the variation value is less than or equal to the preset concentration difference sensitive value and greater than the negative concentration difference sensitive value, maintaining the current height of the second flue (2);
if the change value is smaller than the negative preset concentration difference sensitive value, the second flue (2) is driven to rise for a certain distance.
3. A range hood control method according to claim 1, comprising in step S4 the steps of: and driving the second flue (2) to ascend and descend at equal intervals every time a detection period passes.
4. The range hood control method according to claim 1, further comprising, in step S4: in the detection process, the second flue (2) continuously rises and does not exceed the highest position of the second flue (2);
or the second flue (2) continuously descends and does not exceed the lowest position of the second flue (2).
5. A range hood control method according to claim 1, characterized in that in step S2, said timing detection comprises:
the oil smoke sensor samples once after every interval.
6. A range hood control method according to claim 4, characterized in that the range of movement of the second flue (2) during the rising or falling movement is the distance between the highest position and the lowest position.
7. A range hood control method according to any one of claims 1 to 6, characterized in that the smoke sensor continues to detect the surrounding smoke concentration at certain intervals, and if the change value of two adjacent smoke concentrations is still greater than the preset concentration difference sensitive value, the second smoke channel (2) is driven to move downwards for a certain distance until the second smoke channel (2) does not descend more than the lowest position.
8. The range hood control method according to any one of claims 1 to 6, wherein the oil smoke sensor continues to detect the concentration of surrounding oil smoke at certain intervals, and if the change value of two adjacent oil smoke concentrations is less than or equal to a preset concentration difference sensitive value and greater than a negative concentration difference sensitive value, the current height of the second flue (2) continues to be maintained.
9. A range hood control method according to any one of claims 1 to 6, characterized in that the smoke sensor continues to detect the ambient smoke concentration at certain intervals, and if the variation value is still smaller than the negative preset concentration difference sensitive value, the second flue (2) is driven to continue to rise for a certain distance until the second flue (2) rises no more than the highest position.
10. A range hood control method according to any one of claims 1 to 6, characterized in that after cooking is finished, when a range hood sensor detects that the current oil smoke concentration is 0, the second flue (2) is driven to ascend to an initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110061901.1A CN112797462A (en) | 2021-01-18 | 2021-01-18 | Range hood control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110061901.1A CN112797462A (en) | 2021-01-18 | 2021-01-18 | Range hood control method |
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| CN112797462A true CN112797462A (en) | 2021-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823635A (en) * | 2023-02-13 | 2023-03-21 | 杭州老板电器股份有限公司 | Lifting smoke machine and lifting control method thereof |
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2021
- 2021-01-18 CN CN202110061901.1A patent/CN112797462A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823635A (en) * | 2023-02-13 | 2023-03-21 | 杭州老板电器股份有限公司 | Lifting smoke machine and lifting control method thereof |
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