CN111520815B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN111520815B CN111520815B CN202010297603.8A CN202010297603A CN111520815B CN 111520815 B CN111520815 B CN 111520815B CN 202010297603 A CN202010297603 A CN 202010297603A CN 111520815 B CN111520815 B CN 111520815B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 98
- 238000001514 detection method Methods 0.000 claims description 41
- 238000012544 monitoring process Methods 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
-
- 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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
-
- 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
-
- 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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
- F24F2221/225—Cleaning ducts or apparatus using a liquid
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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)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to an air conditioner and a control method thereof. The invention adopts different filter screen cleaning modes relatively aiming at different regional characteristics, is more intelligent and more accurate compared with the traditional treatment mode in the prior art, has good cleaning effect on the filter screen, judges the filth blockage condition of the filter screen by using a plurality of modes in a combined way, correspondingly controls the filter screen cleaning in different grades aiming at different filth blockage degrees, and comprehensively ensures the normal operation of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
The air conditioner outdoor unit in the prior art comprises a scheme for detecting the cleanliness of a filter screen, but the prior art has a single detection means for the filter screen, and does not provide a targeted cleaning scheme for cleaning the filter screen, and the cleaning mode is not intelligent, for example, after the filter screen of the outdoor unit is dirty and blocked, a user is prompted to clean the filter screen, the user needs to disassemble the filter screen personally, a common user cannot implement the cleaning, the cleaning can only wait for a professional technician to clean the filter screen, so that the auxiliary consumption of the air conditioner is high in the use process, and the air conditioner cannot normally run under the condition that the filter screen is seriously dirty and blocked, so that great inconvenience is brought to the user; or can solve filthy stifled through the form of the automatic clearance filter screen of air conditioner in some schemes, but the filter screen uses specific environmental factor is not considered in current automatic clearance mode, for example the region difference with use the influence of season to the filter screen cleanness, lead to the unable effective needs that satisfy of filter screen cleanness mode, and for monitoring the filter screen among the prior art, the detection parameter is single, can not satisfy user's interest of cutting one's body.
Disclosure of Invention
The embodiment of the invention provides an air conditioner and a control method thereof. The technical problem in the prior art is solved.
In order to solve the above technical problems, the present invention proposes the first invention: the utility model provides an air conditioner, the air conditioner has split type indoor set and off-premises station, and the off-premises station includes the casing and is located compressor, condenser, sensor group and the filter screen of casing, the filter screen is including the filter screen of airing exhaust that is located air conditioner off-premises station casing's air intake filter screen and air outlet department, its characterized in that: be equipped with automatically controlled box in the casing, automatically controlled box electric connection current sensor, voltage sensor, amount of wind sensor the detection data of arbitrary sensor appear judging for under the filthy stifled condition of filter screen in current sensor, voltage sensor, the amount of wind sensor testing process, judge for the filthy stifled of filter screen, still include positioning unit, time monitoring unit in the automatically controlled box, electric current comparison unit, fan switching unit, the casing bottom is provided with the water collector, set up clean water pump in the water collector, the water pump outlet side passes through the spray tube and faces the filter screen, corresponds the clean mode of control air condensing units filter screen according to the information that time monitoring unit and positioning unit detected.
Furthermore, a current sensor detects real-time current of the outdoor fan, a voltage sensor detects real-time voltage of the outdoor fan, and an air quantity sensor is arranged on the side edge of the filter screen of the air inlet of the shell.
Further, when parameters detected by the current sensor, the voltage sensor and the air volume sensor indicate that the three detection results are all judged to be that the filter screen is dirty and blocked, the filter screen is cleaned according to the highest gear, if the two detection results are detected, the filter screen is judged to be dirty and blocked, the middle gear is used for cleaning the filter screen, and if only one detection result is detected, the filter screen is judged to be dirty and blocked, and the filter screen is cleaned according to the lowest gear.
Furthermore, water in the water pan comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner or directly receives the condensate water of the outdoor unit of the shell, the condensate water of the indoor unit is drained to the water pan of the outdoor unit through a drain pipe to be stored, and when the outdoor unit is needed, the water pump is used for spraying and cleaning the filter screen.
Furthermore, the positioning unit is communicated with the server in a wireless communication mode and comprises a GPS module for acquiring the altitude, the longitude and the latitude of the place where the air conditioner is located, the time monitoring unit judges the approximate season of the location of the air conditioner by combining the altitude, the latitude and the longitude information, and when the location of the air conditioner is judged to be in a dry/clear season, after the filter screen is judged to be dirty and blocked, the fan switching unit is controlled to switch the rotating direction, so that the fan of the air conditioner outdoor unit rotates reversely, the dust at the filter screen is blown off reversely, thereby realizing the cleaning of the filter screen, when the place where the air conditioner is positioned is judged to be in the wet/rainy season, the electric control box controls the air conditioner to firstly spray and clean water in the water receiving tray, and when the condensed water is insufficient, the outdoor fan runs reversely to clean the filter screen. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the current sensor detects real-time current of the fan of the air conditioner outdoor unit, the current comparison unit in the electric control box is used for comparing the measured value with a current preset value, and when the real-time current drops to 0.7-0.8 times of the preset value, dirty blockage of the filter screen is determined.
Further, the voltage sensor acquires real-time outdoor fan motor voltage; calculating to obtain the real-time power of the motor according to the voltage of the outdoor fan motor and the current of the outdoor fan motor; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is greater than a first threshold value and lasts for a first preset time. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, when the fan of the outdoor unit of the air conditioner rotates reversely to clean the filter screen, the fan rotates reversely for a first preset time according to a preset frequency, and stops for a first preset time at intervals to finish a period, and the period is controlled repeatedly for 2 or 3, wherein reverse gears of the fan comprise a high gear, a middle gear and a low gear, and correspond to different filter screen filth blockage degrees.
Furthermore, in the normal operation process, an air quantity sensor is arranged at the position of the air inlet filter screen, and when the detected air quantity is lower than 80% of the initial air quantity value corresponding to the clean filter screen, dirty blockage is judged to occur.
And further, under the condition that the dirty and blockage needs to be removed by spraying, the water pump is controlled to work, the PWM module is arranged in the electric control box and correspondingly controls the output voltage to control the frequency of the water pump, the highest frequency of the water pump is adopted to continuously output second preset time, the second preset time is intermittently kept for a second preset time interval, a period is completed, and the water pump is stopped after 2 or 3 periods of continuous control, so that the aim of cleaning the filter screen is fulfilled. The second preset time is three gears according to the filth blockage degree of the filter screen, wherein the first gear time is greater than the second gear time and the third gear time. And meanwhile, a water level sensor is also arranged and is positioned in the water receiving tray and electrically connected with the electric control box, when the water level in the water receiving tray is reduced to the water shortage level, the electric control box sends a replacement signal and is replaced by a fan blowing filter screen, so that the cleaning of the filter screen can be practically finished, wherein the gear corresponding to the starting fan is matched with the filth blockage degree of the filter screen under the condition of replacing the cleaning mode.
The invention proposes a second invention: the air conditioner comprises a shell, a compressor, a condenser, an electric control box, a filter screen and a filter screen state detection component, wherein the compressor, the condenser, the electric control box and the filter screen state detection component are positioned in the shell, and the filter screen is positioned at an air inlet and an air outlet of the shell of an outdoor unit of the air conditioner and is characterized in that: the air conditioner control method comprises the following steps of arranging a current comparison unit and a fan switching unit in an electric control box, arranging a water pan at the bottom of a shell, arranging a clean water pump in the water pan, and enabling the outlet side of the water pump to face a filter screen through a spray pipe: the air conditioner is characterized in that a current sensor, a voltage sensor and an air volume sensor which are electrically connected with the electric control box are arranged, the filter screen is judged to be dirty and blocked under the condition that the detection data of any sensor appears and is judged to be dirty and blocked in the detection processes of the current sensor, the voltage sensor and the air volume sensor, and then the using environment condition of the air conditioner is judged by utilizing a positioning unit and a time monitoring unit which are arranged in the electric control box; and correspondingly controlling the cleaning mode of the filter screen of the air conditioner outdoor unit according to the information detected by the time monitoring unit and the positioning unit.
Compared with the prior art, the technical scheme of the invention comprehensively considers the environmental factors corresponding to different regions in the using process of the air conditioner outdoor unit, and correspondingly sets the scheme of cleaning the filter screen for different occasions and degrees of filth blockage of the filter screen, so that the processing mode is more intelligent, more accurate and more energy-saving compared with the traditional processing mode in the prior art, and has important significance for energy conservation and emission reduction.
Drawings
FIG. 1 is a flow chart of a monitoring method for filth blockage of a filter screen of an air conditioner in embodiment 1 of the invention FIG. 2 is a flow chart of a monitoring method for filth blockage of a filter screen of an air conditioner in embodiment 2 of the invention
Detailed Description
Example 1:
the utility model provides an air conditioner, the air conditioner has split type indoor set and off-premises station, and the off-premises station includes the casing and is located compressor, condenser, sensor group and the filter screen of casing, the filter screen is including the filter screen of airing exhaust that is located air conditioner off-premises station casing's air intake filter screen and air outlet department, its characterized in that: be equipped with automatically controlled box in the casing, automatically controlled box electric connection current sensor, voltage sensor, amount of wind sensor the detection data of arbitrary sensor appear judging for under the filthy stifled condition of filter screen in current sensor, voltage sensor, the amount of wind sensor testing process, judge for the filthy stifled of filter screen, still include positioning unit, time monitoring unit in the automatically controlled box, electric current comparison unit, fan switching unit, the casing bottom is provided with the water collector, set up clean water pump in the water collector, the water pump outlet side passes through the spray tube and faces the filter screen, corresponds the clean mode of control air condensing units filter screen according to the information that time monitoring unit and positioning unit detected.
Furthermore, a current sensor detects real-time current of the outdoor fan, a voltage sensor detects real-time voltage of the outdoor fan, and an air quantity sensor is arranged on the side edge of the filter screen of the air inlet of the shell.
Further, when parameters detected by the current sensor, the voltage sensor and the air volume sensor indicate that the three detection results are all judged to be that the filter screen is dirty and blocked, the filter screen is cleaned according to the highest gear, if the two detection results are detected, the filter screen is judged to be dirty and blocked, the middle gear is used for cleaning the filter screen, and if only one detection result is detected, the filter screen is judged to be dirty and blocked, and the filter screen is cleaned according to the lowest gear.
Furthermore, water in the water pan comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner or directly receives the condensate water of the outdoor unit of the shell, the condensate water of the indoor unit is drained to the water pan of the outdoor unit through a drain pipe to be stored, and when the outdoor unit is needed, the water pump is used for spraying and cleaning the filter screen.
Furthermore, the positioning unit is communicated with the server in a wireless communication mode and comprises a GPS module for acquiring the altitude, the longitude and the latitude of the place where the air conditioner is located, the time monitoring unit judges the approximate season of the location of the air conditioner by combining the altitude, the latitude and the longitude information, and when the location of the air conditioner is judged to be in a dry/clear season, after the filter screen is judged to be dirty and blocked, the fan switching unit is controlled to switch the rotating direction, so that the fan of the air conditioner outdoor unit rotates reversely, the dust at the filter screen is blown off reversely, thereby realizing the cleaning of the filter screen, when the place where the air conditioner is positioned is judged to be in the wet/rainy season, the electric control box controls the air conditioner to firstly spray and clean water in the water receiving tray, and when the condensed water is insufficient, the outdoor fan runs reversely to clean the filter screen. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the current sensor detects real-time current of the fan of the air conditioner outdoor unit, the current comparison unit in the electric control box is used for comparing the measured value with a current preset value, and when the real-time current drops to 0.8 times of the preset value, dirty blockage of the filter screen is determined.
Further, the voltage sensor acquires real-time outdoor fan motor voltage; calculating to obtain the real-time power of the motor according to the voltage of the outdoor fan motor and the current of the outdoor fan motor; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is more than 10% and lasts for 10 seconds. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, in the normal operation process, an air quantity sensor is arranged at the position of the air inlet filter screen, and when the detected air quantity is lower than 80% of the initial air quantity value corresponding to the clean filter screen, dirty blockage is judged to occur.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of cleaning the filter screen by reversely rotating the fan of the outdoor unit of the air conditioner, when the three detection results all indicate that the filter screen is dirty and blocked, the rotating speed of the fan is correspondingly controlled to be high, specifically 1500 plus 1800r/minute, and the period of lasting for 5 seconds and then stopping for 10 seconds is taken as a period, and the normal operation is resumed after 2-3 periods are continuously completed. When only one data item is judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is low, specifically 1000 plus 1200r/minute, and when two data items are judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is medium, specifically 1200 plus 1500 r/minute.
Further, when the situation that the dirty blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, when three detection results are all judged that the filter screen is dirty and blocked, the corresponding output time of the water pump is 15 seconds, then the operation is stopped for 5 seconds, a period is completed, and the operation is continuously carried out for 3 periods. And when the two detection results show that the filter screen is dirty and blocked, the output time of the water pump is 10 seconds, then the water pump is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles. When only one detection result is judged that the filter screen is dirty and blocked, the corresponding water pump output time is 5 seconds, then the water pump is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles.
The judgement to the filth stifled filter screen in this embodiment has included the multi-parameter and has judged jointly, satisfying under one of them circumstances, just judge for taking place filth stifled, for prior art's single judgement, the information covers more comprehensively, the adverse effect that air condensing units brought to air conditioning unit under the filth stifled condition has been prevented comprehensively, simultaneously according to the condition of judging the parameter, the severity of filth stifled has effectively been reflected, and implement the clean mode of different grades of filter screen according to the severity, different clearance means have been selected to different regions and seasons simultaneously, the stability of air conditioner operation has been ensured, promote user experience comprehensively. Meanwhile, the water receiving disc is arranged at the bottom of the shell of the outdoor unit, condensed water generated in the running process of the air conditioner is fully utilized, waste recycling is achieved, and the requirements of environmental protection and energy conservation are met.
Example 2:
the air conditioner comprises a shell, a compressor, a condenser, an electric control box, a filter screen and a filter screen state detection component, wherein the compressor, the condenser, the electric control box and the filter screen state detection component are positioned in the shell, and the filter screen is positioned at an air inlet and an air outlet of the shell of an outdoor unit of the air conditioner and is characterized in that: the air conditioner control method comprises the following steps of arranging a current comparison unit and a fan switching unit in an electric control box, arranging a water pan at the bottom of a shell, arranging a clean water pump in the water pan, and enabling the outlet side of the water pump to face a filter screen through a spray pipe: the air conditioner is characterized in that a current sensor, a voltage sensor and an air volume sensor which are electrically connected with the electric control box are arranged, the filter screen is judged to be dirty and blocked under the condition that the detection data of any sensor appears and is judged to be dirty and blocked in the detection processes of the current sensor, the voltage sensor and the air volume sensor, and then the using environment condition of the air conditioner is judged by utilizing a positioning unit and a time monitoring unit which are arranged in the electric control box; and correspondingly controlling the cleaning mode of the filter screen of the air conditioner outdoor unit according to the information detected by the time monitoring unit and the positioning unit.
Furthermore, a current sensor detects real-time current of the outdoor fan, a voltage sensor detects real-time voltage of the outdoor fan, and an air quantity sensor is arranged on the side edge of the filter screen of the air inlet of the shell.
Further, when parameters detected by the current sensor, the voltage sensor and the air volume sensor indicate that the three detection results are all judged to be that the filter screen is dirty and blocked, the filter screen is cleaned according to the highest gear, if the two detection results are detected, the filter screen is judged to be dirty and blocked, the middle gear is used for cleaning the filter screen, and if only one detection result is detected, the filter screen is judged to be dirty and blocked, and the filter screen is cleaned according to the lowest gear.
Furthermore, water in the water pan comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner or directly receives the condensate water of the outdoor unit of the shell, the condensate water of the indoor unit is drained to the water pan of the outdoor unit through a drain pipe to be stored, and when the outdoor unit is needed, the water pump is used for spraying and cleaning the filter screen.
Furthermore, the positioning unit is communicated with the server in a wireless communication mode and comprises a GPS module for acquiring the altitude, the longitude and the latitude of the place where the air conditioner is located, the time monitoring unit judges the approximate season of the location of the air conditioner by combining the altitude, the latitude and the longitude information, and when the location of the air conditioner is judged to be in a dry/clear season, after the filter screen is judged to be dirty and blocked, the fan switching unit is controlled to switch the rotating direction, so that the fan of the air conditioner outdoor unit rotates reversely, the dust at the filter screen is blown off reversely, thereby realizing the cleaning of the filter screen, when the place where the air conditioner is positioned is judged to be in the wet/rainy season, the electric control box controls the air conditioner to firstly spray and clean water in the water receiving tray, and when the condensed water is insufficient, the outdoor fan runs reversely to clean the filter screen. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the current sensor detects real-time current of the fan of the air conditioner outdoor unit, the current comparison unit in the electric control box is used for comparing the measured value with a current preset value, and when the real-time current drops to 0.7 times of the preset value, dirty blockage of the filter screen is determined.
Further, the voltage sensor acquires real-time outdoor fan motor voltage; calculating to obtain the real-time power of the motor according to the voltage of the outdoor fan motor and the current of the outdoor fan motor; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is more than 8% and lasts for 15 seconds. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, in the normal operation process, an air quantity sensor is arranged at the position of the air inlet filter screen, and when the detected air quantity is lower than 80% of the initial air quantity value corresponding to the clean filter screen, dirty blockage is judged to occur.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of cleaning the filter screen by reversely rotating the fan of the outdoor unit of the air conditioner, when the three detection results all indicate that the filter screen is dirty and blocked, the rotating speed of the fan is correspondingly controlled to be high, specifically 1500 plus 1800r/minute, and the period of lasting for 5 seconds and then stopping for 10 seconds is taken as a period, and the normal operation is resumed after 2-3 periods are continuously completed. When only one data item is judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is low, specifically 1000 plus 1200r/minute, and when two data items are judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is medium, specifically 1200 plus 1500 r/minute.
Further, when the situation that the dirty blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, when three detection results are all judged that the filter screen is dirty and blocked, the corresponding output time of the water pump is 15 seconds, then the operation is stopped for 5 seconds, a period is completed, and the operation is continuously carried out for 3 periods. And when the two detection results show that the filter screen is dirty and blocked, the output time of the water pump is 10 seconds, then the water pump is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles. When only one detection result is judged that the filter screen is dirty and blocked, the corresponding water pump output time is 5 seconds, then the water pump is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles.
Further, in the step of rotating the fan of the outdoor unit of the air conditioner reversely, when the three detection results all indicate that the filter screen is dirty, the rotating speed of the fan is correspondingly controlled to be high, specifically 1500-1800r/minute, and the fan is continuously rotated for 5 seconds and then stopped for 10 seconds as a period, and then the normal operation is resumed after 2-3 periods are continuously completed. When only one data item is judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is low, specifically 1000 plus 1200r/minute, and when two data items are judged to be the filter screen is dirty and blocked, the rotating speed of the corresponding control fan is medium, specifically 1200 plus 1500 r/minute.
Further, when the situation that the dirty blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, when three detection results are all judged that the filter screen is dirty and blocked, the output time of the water pump is 12 seconds, then the operation is stopped for 5 seconds, a period is completed, and the operation is continued for 3 periods. When two data are judged to be that the filter screen is dirty and blocked, the corresponding water pump output time is 8 seconds, then the operation is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles. When only one data is judged to be that the filter screen is dirty and blocked, the corresponding water pump output time is 4 seconds, then the operation is stopped for 5 seconds, a cycle is completed, and the operation is continuously carried out for 3 cycles.
This embodiment is directed at the angle of judging whether to take place filth stifled through the electric current, has carried out appropriate down-regulation to the proportion of electric current, is applicable to the good operating mode of outdoor condition, just begins to clear up when the electric current drops to under the condition of 0.7 times default, has practiced thrift the energy consumption, avoids the consumption that excessively clean brought.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and the drawings, or any other related technical fields directly/indirectly under the inventive concept of the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides an air conditioner, the air conditioner has split type indoor set and off-premises station, and the off-premises station includes the casing and is located compressor, condenser, sensor group and the filter screen of casing, the filter screen is including the filter screen of airing exhaust that is located air conditioner off-premises station casing's air intake filter screen and air outlet department, its characterized in that: the cleaning device comprises a shell, and is characterized in that an electric control box is arranged in the shell, the electric control box is electrically connected with a current sensor, a voltage sensor and an air volume sensor, the filter screen is judged to be dirty and blocked under the condition that the detection data of any sensor in the detection processes of the current sensor, the voltage sensor and the air volume sensor is judged to be dirty and blocked, the electric control box also comprises a positioning unit, a time monitoring unit, a current comparison unit and a fan switching unit, the bottom of the shell is provided with a water receiving tray, a cleaning water pump is arranged in the water receiving tray, the outlet side of the water pump faces the filter screen through a spray pipe, and the cleaning mode of the filter screen of the outdoor unit;
the positioning unit is communicated with the server in a wireless communication mode, the positioning unit comprises a GPS module and is used for acquiring the altitude and the longitude and latitude of the place where the air conditioner is located, the time monitoring unit is combined with the altitude and the longitude and latitude information, the outdoor environment is judged according to the approximate season of the place where the air conditioner is located, and when the place where the air conditioner is located is judged to be in a dry/clear season, after the filter screen is judged to be dirty and blocked, the fan switching unit is controlled to switch the rotating direction, so that the fan of the air conditioner outdoor unit rotates reversely, the dust at the filter screen is blown off reversely, thereby realizing the cleaning of the filter screen, when the place where the air conditioner is positioned is judged to be in the wet/rainy season, the electric control box controls the air conditioner to firstly spray and clean water in the water receiving tray, and then the outdoor fan runs reversely to clean the filter screen under the condition of insufficient condensed water; the spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
2. The air conditioner according to claim 1, wherein: the current sensor detects real-time current of the outdoor fan, the voltage sensor detects real-time voltage of the outdoor fan, and the air quantity sensor is arranged on the side edge of the filter screen of the air inlet of the shell.
3. The air conditioner according to claim 1, wherein: when three detection results in detection parameters detected by the current sensor, the voltage sensor and the air volume sensor are all judged to be filthy and blocked, the filter screen is cleaned according to the highest gear, if the two detection results are judged to be filthy and blocked, the middle gear is used for cleaning the filter screen, if only one detection result is judged to be filthy and blocked, the filter screen is cleaned according to the lowest gear, water in the water receiving disc is condensed water from an indoor unit matched with the outdoor unit of the air conditioner or directly receives the condensed water of the outdoor unit of the air conditioner, and the condensed water of the indoor unit is guided to the water receiving disc of the outdoor unit through a drain pipe to be stored.
4. The air conditioner according to claim 1, wherein: the current sensor detects the real-time current of the fan of the air conditioner outdoor unit, the current comparison unit in the electric control box is used for comparing the measured value with the current preset value, and when the real-time current drops to 0.7-0.8 times of the preset value, the filter screen is determined to be dirty and blocked.
5. The air conditioner according to claim 1, wherein: the voltage sensor acquires real-time outdoor fan motor voltage; calculating to obtain the real-time power of the motor according to the voltage of the outdoor fan motor and the current of the outdoor fan motor; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is greater than a first threshold value and lasts for a first preset time.
6. The air conditioner according to claim 1, wherein: the electric control box is internally provided with a pre-storage module which stores corresponding current preset values and preset power, and the electric control box is also provided with a synchronization module which can synchronize the corresponding current preset values and the preset power to the server.
7. The air conditioner according to claim 1, wherein: when a fan of the outdoor unit of the air conditioner reversely rotates to clean the filter screen, the fan reversely rotates for a first preset time according to a preset frequency, the fan stops for the first time at intervals, a period is completed, the period is controlled repeatedly for 2 or 3, and reverse gears of the fan comprise a high gear, a middle gear and a low gear and correspond to different filter screen filth blockage degrees.
8. The air conditioner according to claim 1, wherein: when the situation that the filth and blockage are required to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box, the PWM module correspondingly controls output voltage and is used for controlling the frequency of the water pump, the highest frequency of the water pump is adopted for continuously outputting second preset time, the water pump is stopped at intervals for second preset time, a period is completed, and the water pump is stopped after 2 or 3 periods of continuous control, so that the aim of cleaning the filter screen is fulfilled; the second preset time is three gears according to the filth blockage degree of the filter screen, wherein the first gear time is greater than the second gear time and the third gear time.
9. The air conditioner comprises a shell, a compressor, a condenser, an electric control box, a filter screen and a filter screen state detection component, wherein the compressor, the condenser, the electric control box and the filter screen state detection component are positioned in the shell, and the filter screen is positioned at an air inlet and an air outlet of the shell of an outdoor unit of the air conditioner and is characterized in that: the air conditioner control method comprises the following steps of arranging a current comparison unit and a fan switching unit in an electric control box, arranging a water pan at the bottom of a shell, arranging a clean water pump in the water pan, and enabling the outlet side of the water pump to face a filter screen through a spray pipe: the air conditioner is characterized in that a current sensor, a voltage sensor and an air volume sensor which are electrically connected with the electric control box are arranged, the filter screen is judged to be dirty and blocked under the condition that the detection data of any sensor appears and is judged to be dirty and blocked in the detection processes of the current sensor, the voltage sensor and the air volume sensor, and then the using environment condition of the air conditioner is judged by utilizing a positioning unit and a time monitoring unit which are arranged in the electric control box; and correspondingly controlling the cleaning mode of the filter screen of the air conditioner outdoor unit according to the information detected by the time monitoring unit and the positioning unit.
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| CN111486548B (en) * | 2020-04-22 | 2022-02-01 | 武汉所为不凡能源科技有限公司 | Air conditioner outdoor unit filter screen processing method and device and air conditioner |
| CN111486549B (en) * | 2020-04-22 | 2022-02-08 | 武汉网电盈科科技发展有限公司 | Air conditioner outdoor unit filter screen processing method and device and air conditioner |
| CN111473472A (en) * | 2020-04-22 | 2020-07-31 | 广州珈鹏科技有限公司 | Air conditioner outdoor unit filter screen processing method and device and air conditioner |
| CN112096636B (en) * | 2020-08-26 | 2022-04-29 | 智美康民(珠海)健康科技有限公司 | Smoke filtering efficiency detection method, fan speed regulation method, circuit, moxibustion instrument and medium |
| CN112283874B (en) * | 2020-10-30 | 2022-05-24 | 海信（山东）空调有限公司 | Air conditioner and fresh air pipeline cleaning method |
| CN112524745B (en) * | 2020-11-20 | 2022-08-19 | 青岛海尔空调器有限总公司 | Air conditioner filter screen cleaning reminding device and air conditioner |
| CN112556116A (en) * | 2020-12-10 | 2021-03-26 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
| CN112628928B (en) * | 2020-12-14 | 2022-04-22 | 江苏锐天智能科技股份有限公司 | Ultraviolet air purification equipment with rotary reverse cleaning mechanism |
| CN112664998B (en) * | 2021-01-11 | 2022-04-19 | 青岛海信日立空调系统有限公司 | Multi-connected heat pump water heating system and control method thereof |
| CN113432189B (en) * | 2021-06-24 | 2022-06-10 | 美的集团武汉暖通设备有限公司 | Indoor unit, air conditioner control method, control device, air conditioner and storage medium |
| CN113551360B (en) * | 2021-07-07 | 2022-09-27 | 珠海格力电器股份有限公司 | Self-cleaning control method and device, medium and equipment for air conditioner filter screen |
| CN114251739A (en) * | 2021-11-09 | 2022-03-29 | 青岛海尔空调器有限总公司 | Method and device for cleaning filter screen and air conditioner |
| CN114216179A (en) * | 2021-12-03 | 2022-03-22 | 珠海格力电器股份有限公司 | Dehumidifier and control method |
| CN114534382B (en) * | 2022-02-17 | 2023-05-09 | 东方电气集团东方电机有限公司 | Fault checking method, device, system and computer readable storage medium |
| CN115218419A (en) * | 2022-07-01 | 2022-10-21 | 宁波奥克斯电气股份有限公司 | Fresh air conditioner control method and device and fresh air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001027439A (en) * | 1999-07-13 | 2001-01-30 | Hitachi Ltd | Air conditioner |
| CN202403338U (en) * | 2011-12-14 | 2012-08-29 | 贺春荣 | Self-cleaning and humidifying energy-saving device of split air conditioner |
| CN106500275B (en) * | 2016-11-22 | 2019-06-04 | 广东美的暖通设备有限公司 | The dust removal method and air conditioner of the filter screen of air conditioner |
| CN108286772A (en) * | 2017-12-21 | 2018-07-17 | 珠海格力电器股份有限公司 | Air conditioning control method, device and air-conditioning |
| CN109008801A (en) * | 2018-08-10 | 2018-12-18 | 珠海格力电器股份有限公司 | Electric appliance screen replacing detection method, system, intake calculation method and dust catcher |
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