CN113587318A - Air purifier and control method thereof - Google Patents
Air purifier and control method thereof Download PDFInfo
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- CN113587318A CN113587318A CN202110914599.XA CN202110914599A CN113587318A CN 113587318 A CN113587318 A CN 113587318A CN 202110914599 A CN202110914599 A CN 202110914599A CN 113587318 A CN113587318 A CN 113587318A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000010408 sweeping Methods 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000000746 purification Methods 0.000 abstract description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002386 air freshener Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of automatic control, in particular to an air purifier and a control method thereof, comprising the following steps: the filtering unit, the fan unit and the fan unit are sequentially connected from bottom to top; the fan unit is arranged at an air outlet of the fan unit, can adjust a pitching angle and rotate horizontally by 360 degrees, is provided with a pitching distance sensor, is sequentially provided with at least 4 lateral distance sensors around the periphery of the side wall of the air purifier, and has the same distance with the adjacent lateral distance sensors; a control unit connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively. This application is through surveying space around, automatic adjustment air-out angle and direction for indoor air can the maximize flow, with this improvement purification speed and efficiency.
Description
Technical Field
The application relates to the technical field of automatic control, in particular to an air purifier and a control method thereof.
Background
An air purifier is also called as an air cleaner, an air freshener and a purifier, and is a product capable of adsorbing, decomposing or converting various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde and other decoration pollution, bacteria, allergens and the like) and effectively improving the air cleanliness, and is mainly divided into household, commercial, industrial and building products.
Air purifier air-out direction on the existing market is either air-out, or side air-out. When the user puts under different environmental conditions, can't adapt to the environment and provide the most suitable air-out angle and accelerate indoor air cycle and improve purification efficiency.
Disclosure of Invention
In order to solve the problems, the application provides an air purifier and a control method thereof, and solves the technical problem that the air purifier in the related art is low in purification efficiency due to the fact that the air outlet direction is fixed and cannot adapt to the environment.
In a first aspect, the present application provides an air purifier, the air purifier comprising:
the filtering unit, the fan unit and the fan unit are sequentially connected from bottom to top;
the fan unit is arranged at an air outlet of the fan unit, can adjust a pitching angle and rotate horizontally by 360 degrees, is provided with a pitching distance sensor, is sequentially provided with at least 4 lateral distance sensors around the periphery of the side wall of the air purifier, and has the same distance with the adjacent lateral distance sensors;
a control unit connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively.
In some embodiments, the pitch distance sensor is an optical distance sensor or an ultrasonic distance sensor.
In some embodiments, the lateral distance sensor is an optical distance sensor or an ultrasonic distance sensor.
In some embodiments, the filtration unit is a filter screen, a set of filter screens, a filter cartridge, or a set of filter cartridges.
In some embodiments, the pitch distance sensor is configured to measure a distance between the fan unit and an obstacle in the direction of the air outlet, and feed back information of the measured distance to the control unit.
In some embodiments, the lateral distance sensor is configured to measure a distance between the air purifier and an obstacle in a lateral direction, and to feed back information of the measured distance to the control unit.
In some embodiments, the control unit is configured to calculate a maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, and control the fan unit to adjust to the maximum pitch angle and maintain the maximum pitch angle, or control the fan unit to reciprocate between a preset initial position and the maximum pitch angle.
In some embodiments, the control unit is configured to monitor the usage degree of the filtering unit, and remind a user when the usage degree of the filtering unit is monitored to reach a preset threshold.
In some embodiments, the fan unit has a pitch angle ranging from 0 degrees to 90 degrees.
In a second aspect, a control method of an air purifier is applied to the air purifier of the first aspect, and the method includes:
after receiving a starting instruction sent by a user, the control unit controls the fan unit, the pitching distance sensor and the at least 4 lateral distance sensors to start to operate;
the control unit calculates the maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, controls the fan unit to adjust to the maximum pitch angle and keep the maximum pitch angle, or controls the fan unit to reciprocate between a preset initial position and the maximum pitch angle;
the control unit calculates the wind sweeping angle of the fan unit in the horizontal direction according to the distance information fed back by the at least 4 lateral distance sensors, and controls the fan unit to rotate and sweep wind according to the wind sweeping angle.
The application provides an air purifier and a control method thereof, comprising the following steps: the filtering unit, the fan unit and the fan unit are sequentially connected from bottom to top; the fan unit is arranged at an air outlet of the fan unit, can adjust a pitching angle and rotate horizontally by 360 degrees, is provided with a pitching distance sensor, is sequentially provided with at least 4 lateral distance sensors around the periphery of the side wall of the air purifier, and has the same distance with the adjacent lateral distance sensors; a control unit connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively. This application is through surveying space around, automatic adjustment air-out angle and direction for indoor air can the maximize flow, with this improvement purification speed and efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air purifier provided in an embodiment of the present application;
fig. 2 is a schematic view of a placement position of an air purifier provided in an embodiment of the present application;
fig. 3 is a schematic flowchart of another control method of an air purifier according to an embodiment of the present disclosure.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and embodiments, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and various features in the embodiments of the present application can be combined with each other without conflict, and the formed technical solutions are all within the scope of protection of the present application.
Known from the background art, air purifier air-out direction on the current market is either air-out on the top, or side air-out. When the user puts under different environmental conditions, can't adapt to the environment and provide the most suitable air-out angle and accelerate indoor air cycle and improve purification efficiency.
In view of this, the application provides an air purifier and a control method thereof, which solves the technical problem that the air purifier has a fixed air outlet direction and cannot adapt to the environment, so that the purification efficiency is low in the related art.
Example one
Fig. 1 is a schematic structural diagram of an air purifier provided in an embodiment of the present application, as shown in fig. 1, the air purifier includes:
the filtering unit 101, the fan unit 102 and the fan unit 103 are connected in sequence from bottom to top;
the fan unit is arranged at an air outlet of the fan unit, can adjust a pitch angle and rotate horizontally by 360 degrees, is provided with a pitch distance sensor 105, is sequentially provided with at least 4 lateral distance sensors 106 around the side wall of the air purifier in a circle, and has the same distance with the adjacent lateral distance sensors;
a control unit 104 connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively.
It should be noted that, as shown in fig. 1, the fan unit in the present application can adjust the pitch angle in the vertical direction and rotate 360 degrees in the horizontal direction, and can sweep the air in the largest area, so that the indoor air can flow maximally, thereby improving the purification speed and efficiency.
It should be further noted that, the control unit is generally installed on the outer wall of the air purifier and provided with a control button because it needs to receive a control command from a user, in another embodiment of the present application, the control unit is installed at a central position of the fan unit, as shown in a front view of the fan unit in fig. 1, the control unit is installed at a frontal central position of the fan unit, and the pitch distance sensor is also installed at the central position, wherein, in some embodiments, the control unit may be provided with units such as a switch button, a sweep control button, and a display screen, and if the pitch distance sensor is an optical distance sensor, it is necessary to leave a space for the sensor to transmit and receive optical signals at the position of the control unit.
In some embodiments, the pitch distance sensor is an optical distance sensor or an ultrasonic distance sensor.
The pitch distance sensor in the present application includes, but is not limited to, an optical distance sensor or an ultrasonic distance sensor, as long as the distance measurement function required in the present application can be satisfied.
In some embodiments, the lateral distance sensor is an optical distance sensor or an ultrasonic distance sensor.
It should be noted that the lateral distance sensor in the present application includes, but is not limited to, an optical distance sensor or an ultrasonic distance sensor, as long as the distance measurement function required in the present application can be satisfied.
In some embodiments, the filtration unit is a filter screen, a set of filter screens, a filter cartridge, or a set of filter cartridges.
It should be noted that the filter unit in the present application includes, but is not limited to, a filter screen set, a filter element or a filter element set, as long as the air purification function required by the present application can be satisfied.
In some embodiments, the pitch distance sensor is configured to measure a distance between the fan unit and an obstacle in the direction of the air outlet, and feed back information of the measured distance to the control unit.
It should be noted that, in some embodiments, the preset initial position of the fan unit is horizontally placed, the air outlet is vertically upward, the pitch distance sensor measures a distance between an obstacle directly above the fan unit and the fan unit, the measured distance is fed back to the control unit for comparison, when the measured distance of the obstacle is greater than the preset pitch distance, for example, greater than the diameter of the fan unit, the pitch angle adjustment of the fan unit is not affected, and the control unit controls the fan unit to adjust the pitch angle, for example, from the horizontal preset initial position to a vertical 90-degree position.
It should be further noted that, when the fan unit adjusts the pitch angle, the distance angle measured by the pitch distance sensor also changes with the change of the fan unit angle, and at this time, the continuous distance detection is maintained, and once the detected distance is determined to be less than or equal to the preset pitch distance through the comparison of the control unit, the control unit controls the fan unit to adjust to the maximum pitch angle on the premise of not colliding with the obstacle.
In some embodiments, the lateral distance sensor is configured to measure a distance between the air purifier and an obstacle in a lateral direction, and to feed back information of the measured distance to the control unit.
It should be noted that, the lateral distance sensors in the present application are installed on the side wall of the air purifier, surround the air purifier for a circle, and are uniformly arranged, and each lateral distance sensor has the same distance with the adjacent distance sensor, for example, when 4 lateral distance sensors are installed on the side wall of the air sensor, the lateral distance sensors are installed around the air purifier for a circle, and when looking down at the vertical time angle, the 4 lateral distance sensors are seen to have the same distance, and are respectively placed at 0 degree, 90 degrees, 180 degrees, and 270 degrees, and similarly, when other numbers of lateral distance sensors are installed, the lateral distance sensors are also installed in the same manner.
In some embodiments, the control unit is configured to calculate a maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, and control the fan unit to adjust to the maximum pitch angle and maintain the maximum pitch angle, or control the fan unit to reciprocate between a preset initial position and the maximum pitch angle.
It should be noted that the control unit compares the distance measured by the pitch distance sensor with a preset pitch distance, and when there is no obstacle, obtains the maximum pitch angle of the fan unit, which is a preset maximum pitch angle, for example, 90 degrees. If the control unit judges that the distance between the obstacle and the fan unit is smaller than or equal to the preset pitching distance, the control unit calculates the maximum pitching angle of the fan unit under the premise that the fan unit does not collide with the obstacle, and controls the fan unit to adjust to the maximum pitching angle under the premise that the fan unit does not collide with the obstacle.
It should be further noted that the fan unit is kept still at the maximum pitch angle and reciprocates between the preset initial position and the maximum pitch angle, which are two modes of the fan unit and can be selected according to the needs.
In some embodiments, the control unit is configured to monitor the usage degree of the filtering unit, and remind a user when the usage degree of the filtering unit is monitored to reach a preset threshold.
In some embodiments, the fan unit has a pitch angle ranging from 0 degrees to 90 degrees.
It should be noted that 0 degree is a preset initial position of the fan unit in the horizontal position, 90 degrees is a preset maximum pitch angle, and when the distance fed back to the control unit by the pitch distance sensor is greater than the preset pitch distance, the fan unit is adjusted to the preset maximum pitch angle by 90 degrees.
In some embodiments, the control unit is configured to calculate a wind sweeping angle of the fan unit in the horizontal direction according to the distance information fed back by the at least 4 lateral distance sensors, and control the fan unit to rotate to sweep according to the wind sweeping angle.
It should be noted that, the distance measured by the lateral distance sensor is fed back to the control unit, the control unit compares the distance measured by the lateral distance sensor with a preset lateral distance, if the distance measured by the lateral distance sensor is less than or equal to the preset lateral distance, it indicates that the directional obstacle is close, at this time, the efficiency of air replacement flow for sweeping the reverse direction is low, and therefore, the wind sweeping in the direction is abandoned, and if the distance measured by the lateral distance sensor is greater than the preset lateral distance, it indicates that the directional obstacle is far, and it is determined that the wind is swept in the direction.
Specifically, as shown in fig. 2, for a schematic view of a placement position of an air purifier, taking 4 lateral distance sensors as an example, the placement position is a, and when looking down at a vertical time angle, the user can see that the distances between the 4 lateral distance sensors are the same, and the placement positions are respectively placed at 0 degree, 90 degree, 180 degree and 270 degree, if the control unit determines that the distances between 0 degree and 90 degree are smaller than a preset lateral distance according to the distances measured by the lateral distance sensors, the air purifier does not sweep wind in the directions of 0 degree and 90 degree, at this time, the nearest neighboring sensor to the lateral distance sensor that determines not to sweep wind is searched, the nearest neighboring sensor to the lateral distance sensor of 0 degree is the lateral distance sensor of 270 degree, the nearest neighboring sensor to the lateral distance sensor of 90 degree is the lateral distance sensor of 180 degree, and then the angle between 180 degree and 270 degree is taken as the calculated wind sweeping angle, and controlling the fan unit to rotate according to the wind sweeping angle to sweep wind.
It should be noted that, as shown in fig. 2, taking 4 lateral distance sensors as an example, the placement position is B, and when looking down at a vertical time angle, it can be seen that the distances between the 4 lateral distance sensors are the same, and the lateral distance sensors are respectively placed at 0 degree, 90 degrees, 180 degrees and 270 degrees, if the control unit determines that the distances of 90 degrees and 270 degrees are smaller than the preset lateral distance according to the distances measured by the lateral distance sensors, the air purifier does not sweep wind in the directions of 90 degrees and 270 degrees, at this time, the adjacent sensor closest to the lateral distance sensor which determines that no wind is swept is the lateral distance sensor located at 0 degree and 180 degrees is searched, but because the angle range between the lateral distance sensors at 0 degree and 180 degrees is blocked by the lateral sensors which have determined that no wind is 90 degrees and 270 degrees, a coherent wind sweeping angle cannot be formed, at this time, the control unit makes a judgment to determine whether the number of the lateral distance sensors which have determined that no wind is greater than or equal to N-1 lateral distance sensors, and N is the number of the lateral distance sensors and is a positive integer greater than or equal to 4, if so, the wind is not swept, and if not, the wind is swept for 360 degrees. Therefore, the intelligent wind sweeping mode control under the condition that various lateral distance sensors are shielded is realized.
In summary, the embodiment of the present application provides an air purifier, include: the filtering unit, the fan unit and the fan unit are sequentially connected from bottom to top; the fan unit is arranged at an air outlet of the fan unit, can adjust a pitching angle and rotate horizontally by 360 degrees, is provided with a pitching distance sensor, is sequentially provided with at least 4 lateral distance sensors around the periphery of the side wall of the air purifier, and has the same distance with the adjacent lateral distance sensors; a control unit connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively. This application is through surveying space around, automatic adjustment air-out angle and direction for indoor air can the maximize flow, with this improvement purification speed and efficiency.
Example two
Based on the air purifier disclosed in the embodiment of the invention, fig. 3 specifically discloses an air purifier control method applied to the air purifier.
As shown in fig. 3, an embodiment of the present invention discloses a control method for an air purifier, which is applied to the air purifier of the first aspect, and the method includes:
s301, after receiving a starting instruction sent by a user, the control unit controls the fan unit, the pitching distance sensor and the at least 4 lateral distance sensors to start to operate;
s302, the control unit calculates the maximum pitch angle of the fan unit according to distance information fed back by the pitch distance sensor, and controls the fan unit to adjust to the maximum pitch angle and keep the maximum pitch angle, or controls the fan unit to reciprocate between a preset initial position and the maximum pitch angle;
and S303, the control unit calculates the wind sweeping angle of the fan unit in the horizontal direction according to the distance information fed back by the at least 4 lateral distance sensors, and controls the fan unit to rotate and sweep wind according to the wind sweeping angle.
It should be noted that the control unit compares the distance measured by the pitch distance sensor with a preset pitch distance, and when there is no obstacle, obtains the maximum pitch angle of the fan unit, which is a preset maximum pitch angle, for example, 90 degrees. If the control unit judges that the distance between the obstacle and the fan unit is smaller than or equal to the preset pitching distance, the control unit calculates the maximum pitching angle of the fan unit under the premise that the fan unit does not collide with the obstacle, and controls the fan unit to adjust to the maximum pitching angle under the premise that the fan unit does not collide with the obstacle.
It should be further noted that the fan unit is kept still at the maximum pitch angle and reciprocates between the preset initial position and the maximum pitch angle, which are two modes of the fan unit and can be selected according to the needs.
It should be noted that, the distance measured by the lateral distance sensor is fed back to the control unit, the control unit compares the distance measured by the lateral distance sensor with a preset lateral distance, if the distance measured by the lateral distance sensor is less than or equal to the preset lateral distance, it indicates that the directional obstacle is close, at this time, the efficiency of air replacement flow for sweeping the reverse direction is low, and therefore, the wind sweeping in the direction is abandoned, and if the distance measured by the lateral distance sensor is greater than the preset lateral distance, it indicates that the directional obstacle is far, and it is determined that the wind is swept in the direction.
Specifically, as shown in fig. 2, for a schematic view of a placement position of an air purifier, taking 4 lateral distance sensors as an example, the placement position is a, and when looking down at a vertical time angle, the user can see that the distances between the 4 lateral distance sensors are the same, and the placement positions are respectively placed at 0 degree, 90 degree, 180 degree and 270 degree, if the control unit determines that the distances between 0 degree and 90 degree are smaller than a preset lateral distance according to the distances measured by the lateral distance sensors, the air purifier does not sweep wind in the directions of 0 degree and 90 degree, at this time, the nearest neighboring sensor to the lateral distance sensor that determines not to sweep wind is searched, the nearest neighboring sensor to the lateral distance sensor of 0 degree is the lateral distance sensor of 270 degree, the nearest neighboring sensor to the lateral distance sensor of 90 degree is the lateral distance sensor of 180 degree, and then the angle between 180 degree and 270 degree is taken as the calculated wind sweeping angle, and controlling the fan unit to rotate according to the wind sweeping angle to sweep wind.
It should be noted that, as shown in fig. 2, taking 4 lateral distance sensors as an example, the placement position is B, and when looking down at a vertical time angle, it can be seen that the distances between the 4 lateral distance sensors are the same, and the lateral distance sensors are respectively placed at 0 degree, 90 degrees, 180 degrees and 270 degrees, if the control unit determines that the distances of 90 degrees and 270 degrees are smaller than the preset lateral distance according to the distances measured by the lateral distance sensors, the air purifier does not sweep wind in the directions of 90 degrees and 270 degrees, at this time, the adjacent sensor closest to the lateral distance sensor which determines that no wind is swept is the lateral distance sensor located at 0 degree and 180 degrees is searched, but because the angle range between the lateral distance sensors at 0 degree and 180 degrees is blocked by the lateral sensors which have determined that no wind is 90 degrees and 270 degrees, a coherent wind sweeping angle cannot be formed, at this time, the control unit makes a judgment to determine whether the number of the lateral distance sensors which have determined that no wind is greater than or equal to N-1 lateral distance sensors, and N is the number of the lateral distance sensors and is a positive integer greater than or equal to 4, if so, the wind is not swept, and if not, the wind is swept for 360 degrees. Therefore, the intelligent wind sweeping mode control under the condition that various lateral distance sensors are shielded is realized.
In summary, the embodiment of the present application provides a control method of an air purifier, including: after receiving a starting instruction sent by a user, the control unit controls the fan unit, the pitching distance sensor and the at least 4 lateral distance sensors to start to operate; the control unit calculates the maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, controls the fan unit to adjust to the maximum pitch angle and keep the maximum pitch angle, or controls the fan unit to reciprocate between a preset initial position and the maximum pitch angle; the control unit calculates the wind sweeping angle of the fan unit in the horizontal direction according to the distance information fed back by the at least 4 lateral distance sensors, and controls the fan unit to rotate and sweep wind according to the wind sweeping angle. This application is through surveying space around, automatic adjustment air-out angle and direction for indoor air can the maximize flow, with this improvement purification speed and efficiency.
In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways. The above-described method embodiments are merely illustrative.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the embodiments disclosed in the present application are described above, the above descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. An air purifier, characterized in that the air purifier comprises:
the filtering unit, the fan unit and the fan unit are sequentially connected from bottom to top;
the fan unit is arranged at an air outlet of the fan unit, can adjust a pitching angle and rotate horizontally by 360 degrees, is provided with a pitching distance sensor, is sequentially provided with at least 4 lateral distance sensors around the periphery of the side wall of the air purifier, and has the same distance with the adjacent lateral distance sensors;
a control unit connected to the filter unit, the fan unit, the pitch distance sensor and the at least 4 lateral distance sensors, respectively.
2. The air purifier of claim 1, wherein the pitch distance sensor is an optical distance sensor or an ultrasonic distance sensor.
3. The air purifier of claim 1, wherein the lateral distance sensor is an optical distance sensor or an ultrasonic distance sensor.
4. The air purifier of claim 1, wherein the filter unit is a filter screen, a set of filter screens, a filter cartridge, or a set of filter cartridges.
5. The air cleaner of claim 1, wherein the pitch distance sensor is configured to measure a distance between the fan unit and an obstacle in the direction of the air outlet, and to feed back information of the measured distance to the control unit.
6. The air purifier of claim 1, wherein the lateral distance sensor is configured to measure a distance between the air purifier and an obstacle in a lateral direction and to feed back information of the measured distance to the control unit.
7. The air cleaner of claim 1, wherein the control unit is configured to calculate a maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, and control the fan unit to adjust to the maximum pitch angle and maintain the maximum pitch angle, or control the fan unit to reciprocate between a preset initial position and the maximum pitch angle.
8. The air purifier as claimed in claim 1, wherein the control unit is configured to monitor a usage level of the filter unit and remind a user when the usage level of the filter unit reaches a preset threshold.
9. The air cleaner of claim 1, wherein the fan unit has a pitch angle ranging from 0 degrees to 90 degrees.
10. A control method of an air cleaner, applied to the air cleaner of any one of claims 1 to 9, the method comprising:
after receiving a starting instruction sent by a user, the control unit controls the fan unit, the pitching distance sensor and the at least 4 lateral distance sensors to start to operate;
the control unit calculates the maximum pitch angle of the fan unit according to the distance information fed back by the pitch distance sensor, controls the fan unit to adjust to the maximum pitch angle and keep the maximum pitch angle, or controls the fan unit to reciprocate between a preset initial position and the maximum pitch angle;
the control unit calculates the wind sweeping angle of the fan unit in the horizontal direction according to the distance information fed back by the at least 4 lateral distance sensors, and controls the fan unit to rotate and sweep wind according to the wind sweeping angle.
Priority Applications (1)
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