CN110410925B - Air conditioner device with self-cleaning air conditioner outdoor unit, control method and air conditioner - Google Patents
Air conditioner device with self-cleaning air conditioner outdoor unit, control method and air conditioner Download PDFInfo
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- CN110410925B CN110410925B CN201910666556.7A CN201910666556A CN110410925B CN 110410925 B CN110410925 B CN 110410925B CN 201910666556 A CN201910666556 A CN 201910666556A CN 110410925 B CN110410925 B CN 110410925B
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/42—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
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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
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner device with an air conditioner external unit self-cleaning function, a control method and an air conditioner, which relate to the technical field of air conditioners and comprise the following steps: firstly, judging the operation mode of the air conditioner, when the air conditioner operates in a refrigeration mode, starting a cleaning device, adjusting the frequency of a compressor and the rotating speed of an inner fan in the cleaning process, adjusting the rotating speed of the outer fan according to the operation time, controlling the opening and closing of the outer fan and closing the cleaning device. The air conditioner device, the control method and the air conditioner for self-cleaning the outdoor unit of the air conditioner can automatically judge and control the cleaning of the heat exchanger of the outdoor unit, prevent the problems that the condenser of the outdoor unit is seriously used and ash is collected for a long time and cannot be cleaned or is difficult to clean, improve the cleaning degree of the outdoor unit and have better cleaning effect on the heat exchanger.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner device with an air conditioner external unit self-cleaning function, a control method and an air conditioner.
Background
Most of existing air conditioners are split type and comprise an indoor unit and an outdoor unit, the outdoor unit is installed on the outdoor side, so that dust and sundries are more, and after the air conditioner runs for a long time, more dust and sundries are generated on a heat exchanger (condenser), so that the heat exchange function of the heat exchanger is deteriorated, the pressure is increased, and the like. And the existing users rarely clean the external unit, so that the air conditioner has poor refrigerating and heating effects and poor comfort after long-time operation.
The existing outdoor unit is troublesome to clean, because the outdoor units are all arranged on the outdoor side, the floors on which part of the outdoor units of the air conditioner are arranged are high, and the side of the heat exchanger is close to the wall surface, so that the outdoor unit is extremely difficult to clean manually and is difficult to clean; when some air conditioner external units are installed, a protection device is installed outside the air conditioner body, and the protection device needs to be detached every time cleaning is carried out, so that the operation is troublesome; in addition, the outdoor unit is located outside the room, so that a user cannot directly observe the condition of the heat exchanger, and the outdoor unit is not cleaned when dirty or cleaned when dirty, thereby wasting manpower and material resources.
It can be seen that there is a need for an air conditioner that is capable of self-cleaning.
Disclosure of Invention
The invention solves the problems that the existing air conditioner external unit is inconvenient to clean and cannot carry out self-diagnosis and autonomous control on the air conditioner heat exchanger.
In order to solve the above problems, the present invention provides a self-cleaning control method for an air conditioner outdoor unit, comprising: the method comprises the steps of firstly judging the operation mode of the air conditioner, starting the cleaning device when the air conditioner operates in a refrigeration mode, adjusting the frequency of a compressor and the rotating speed of an inner fan in the cleaning process, adjusting the rotating speed of the outer fan according to the operation time, controlling the opening and closing of the outer fan and closing the cleaning device, and therefore the heat exchanger of the outdoor unit of the air conditioner can be cleaned more effectively, and the cleaning effect is better.
Optionally, when the operation mode of the air conditioner is a heating mode, the operation mode is changed into a cooling mode, then the cleaning device is started, the rotating speed of the inner fan is adjusted in the cleaning process, the rotating speed of the outer fan is adjusted according to the operation time, the opening and closing of the outer fan is controlled, and the cleaning device is closed, so that the outdoor heat exchanger can be effectively cleaned when the air conditioner is operated in the heating mode, and the cleaning water can be prevented from freezing when the outdoor heat exchanger is cleaned.
Optionally, before the cleaning device is turned on, the method further comprises:
recording a first time length t1 of starting operation of the air conditioner or a second time length t2 of the last time of cleaning of the outdoor unit;
and judging whether the air conditioner outdoor unit needs to be cleaned or not according to the first time length t1 or the second time length t2, and controlling a cleaning device to be started if necessary.
Whether cleaning is needed or not is automatically judged, the self-diagnosis function of the air conditioner is achieved, and the situation that the outer unit is too dirty and cannot be cleaned or the outer unit is not dirty and cannot be cleaned is avoided.
Optionally, determining whether the air conditioner outdoor unit needs to be cleaned according to the first time period t1 or the second time period t2, and if so, controlling the cleaning device to be turned on includes:
judging whether the first time length t1 is smaller than a first time value or whether the second time length t2 is smaller than a second time value, if so, judging that the air conditioner outdoor unit does not need to be cleaned; if not, the judgment result is that the air conditioner external unit needs to be cleaned, the cleaning device is controlled to be started, and the judgment is more accurate.
Optionally, the cleaning device is started when an air conditioner closing instruction is received, the operation mode before the air conditioner closing instruction is received is obtained, the air conditioner is closed after cleaning is completed, conflict between the air conditioner cleaning process and the operation process of the air conditioner is prevented, and the temperature adjusting function of the air conditioner cannot violate the setting of a user in the outer unit cleaning process.
Optionally, when the cleaning device is turned on, an outer unit cleaning mark is displayed on the indoor unit display panel, and after the automatic cleaning is completed, an outer unit cleaning completion mark is displayed to inform a user that the air conditioner is operated in the cleaning of the outdoor unit, so that the user is prevented from further controlling the air conditioner due to the fact that the operation process of the air conditioner is not clear, and the cleaning process is turned off.
Optionally, when the operation mode before the air conditioner closing instruction is received is a refrigeration mode, the inner fan operates according to the highest wind level, the compressor operates according to the highest frequency, the outer fan is closed, the cleaning device is started, after the third time period t3, the outer fan is started and operates according to the lowest wind level, after the fourth time period t4, the outer fan operates according to the highest wind level, after the fifth time period t5, the cleaning device is closed, and after the sixth time period t6, the air conditioner is closed.
Optionally, when the operation mode before receiving the air conditioner turn-off instruction is the heating mode, the operation mode is changed into the cooling mode, the inner fan and the outer fan are turned off, the compressor keeps operating, the cleaning device is turned on, the outer fan is turned on and operates according to the highest wind gear after the seventh time period t7, the cleaning device is turned off after the eighth time period t8, and the air conditioner is turned off after the ninth time period t 9.
An apparatus for self-cleaning an outdoor unit of an air conditioner, comprising:
a controller for implementing any of the above-described control methods;
and the cleaning device is used for cleaning the air conditioner outdoor unit.
The outdoor unit heat exchanger can be automatically judged and controlled to be cleaned, the problems that the outdoor unit condenser is seriously used for a long time and the outdoor unit condenser cannot be cleaned or is difficult to clean are solved, and the cleanness degree of the outdoor unit is improved.
Optionally, the cleaning device comprises a water storage tank, a water inlet pipe, a filter, a water outlet pipe, a water pump and a spraying device;
the water inlet pipe is suitable for supplementing cleaning water into the water storage tank, and the filter is arranged at the water outlet of the water inlet pipe;
one end of the water outlet pipe is inserted into the bottom of the water storage tank, the other end of the water outlet pipe is connected with a spraying device, the water pump is arranged on the water outlet pipe, and the spraying device is arranged above the outdoor unit heat exchanger.
Optionally, belt cleaning device still includes level sensor, level sensor is located the storage water tank, prevents to wash the water gauge not enough, can't carry out effectual washing to the heat exchanger, more can prevent the idle running of water pump, protects the water pump quality.
Optionally, the water inlet pipe is connected with a condensation water outlet pipe of the indoor unit and/or the water inlet pipe is connected with a water replenishing pipe, condensed water is collected to be used as cleaning water of the heat exchanger of the outdoor unit, water resources are saved, water can be added manually when the condensed water is insufficient, and sufficient cleaning water is ensured.
Optionally, the inlet tube with through the condensate pipe connection between the condensation outlet pipe, the condensate pipe ring cover is in the refrigerant pipe outside, and the comdenstion water has the cooling effect to the intraductal high temperature high pressure refrigerant of refrigerant, can promote air conditioner refrigeration ability, more energy-concerving and environment-protective.
An air conditioner is provided with any one of the self-cleaning devices for the air conditioner outdoor unit. The air conditioner can judge by oneself and wash the off-premises station heat exchanger, improves the clean degree of air conditioner, prolongs the life of air conditioner.
Drawings
FIG. 1 is a schematic view of a cleaning apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a spray device according to an embodiment of the present invention;
FIG. 3 is a schematic view of the connection of a water inlet pipe according to an embodiment of the present invention;
fig. 4 is a schematic view of a condensate pipe according to an embodiment of the present invention.
Description of reference numerals:
1-cleaning device, 11-water storage tank, 111-overflow port, 12-water inlet pipe, 13-filter, 14-water outlet pipe, 15-water pump, 16-spraying device, 17-water supplementing pipe, 2-indoor unit, 21-condensation water outlet pipe, 22-condensation water pipe and 23-refrigerant pipe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "first", "second", and the like, mentioned in the present embodiment, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include one or more of the features.
In addition, it should be noted that, in the present embodiment, the "outer unit" refers to an air conditioner outdoor unit, the "inner unit" refers to an air conditioner indoor unit, the "outer fan" refers to an outdoor unit fan, and the "inner fan" refers to an indoor unit fan.
The invention provides a self-cleaning control method for an air conditioner outdoor unit, which can be used for automatically cleaning an air conditioner and has better cleaning effect when a heat exchanger of the air conditioner outdoor unit is cleaned, and comprises the following steps:
the method comprises the steps of firstly judging the operation mode of the air conditioner, starting the cleaning device when the air conditioner operates in a refrigeration mode, adjusting the frequency of a compressor and the rotating speed of an inner fan in the cleaning process, adjusting the rotating speed of the outer fan according to the operation time, controlling the opening and closing of the outer fan and closing the cleaning device, and therefore the heat exchanger of the outdoor unit of the air conditioner can be cleaned more effectively, and the cleaning effect is better.
Optionally, when the operation mode of the air conditioner is a heating mode, the operation mode is firstly changed into a refrigeration mode, then the cleaning device is started, the frequency of the compressor and the rotating speed of the inner fan are adjusted in the cleaning process, the rotating speed of the outer fan is adjusted according to the operation time, the opening and closing of the outer fan is controlled, and the cleaning device is closed, so that the outdoor heat exchanger can be effectively cleaned when the air conditioner is operated in the heating mode, and the cleaning water in the cleaning process of the outdoor heat exchanger can be prevented from being frozen.
Preferably, before the cleaning device is started, the first time length t1 of the starting operation of the air conditioner or the second time length t2 from the last time of cleaning of the external unit is recorded, and it should be noted that the second time length t2 does not relate to the starting state of the air conditioner, but only the time length between the current time and the last cleaning time.
Specifically, according to the first time period t1 or the second time period t2, whether the air conditioner outdoor unit needs to be cleaned is judged, and if so, the step of controlling the cleaning device to be opened includes:
judging whether the first time length t1 is smaller than a first time value or whether the second time length t2 is smaller than a second time value, if so, judging that the air conditioner outdoor unit does not need to be cleaned; and if not, judging that the air conditioner external unit needs to be cleaned, and controlling the cleaning device to be started.
Preferably, the first time length t1 is within a range of 480-960 h, the second time length t2 is within a range of 2880-5760 h, the self-cleaning function of the outdoor unit condenser is periodically started, under a general condition, if the accumulated running time of the outdoor unit is longer, or if the air conditioner is not running, the outdoor unit is still placed for a period of time, and the condenser has more dust, so that the period set by the self-cleaning starting of the outdoor unit is that the accumulated running time is greater than the first time length t1 or the distance cleaning time is greater than the second time length t2, and the judgment is more accurate.
And judging whether the outer unit of the air conditioner needs to be cleaned according to the first time period t1 or the second time period t2, controlling a cleaning device to be started if necessary, and controlling whether the air conditioner needs to be cleaned according to the time length, so that the self-diagnosis function of the air conditioner is realized, and the condition that the outer unit is too dirty and cannot be cleaned or the outer unit is not dirty and cleaned can not be caused.
Preferably, the outer unit is judged to be required to be cleaned when the air conditioner runs, the cleaning device is started when a closing instruction of the air conditioner is received, namely, the cleaning device is started when a user closes the air conditioner, the conflict between the cleaning process of the air conditioner and the running process of the air conditioner is prevented, the cleaning process of the outer unit cannot enable the temperature adjusting function of the air conditioner to violate the setting of the user, and the air conditioner is closed after the cleaning is finished.
When the cleaning device is started or before the cleaning device is started, the current running mode of the air conditioner is obtained, and when the air conditioner is in a refrigeration mode, the frequency of a compressor is controlled, the opening and closing of an inner fan is controlled, and the opening and closing and the rotating speed of an outer fan are controlled in the cleaning process; in the heating mode, the on-off of the compressor, the on-off of the inner fan, the on-off and rotating speed of the outer fan and the on-off of the four-way valve are controlled in the cleaning process.
Preferably, when the cleaning device is started, the outer unit cleaning mark is displayed on the display panel of the indoor unit, and the outer unit cleaning completion mark is displayed after the automatic cleaning is completed, so that a user is informed that the air conditioner is operated in the cleaning of the outdoor unit, and the condition that the user further controls the air conditioner due to the fact that the operation process of the air conditioner is not clear is prevented from being closed.
When the air conditioner judges that the air conditioner needs to be cleaned, an air conditioner closing instruction is received, if the operation mode before the air conditioner closing instruction is received is a refrigeration mode, the inner fan operates according to the highest wind level, the compressor operates according to the highest frequency, the outer fan is closed, the cleaning device is started, after the operation is carried out for the third time period t3, the outer fan is started and operates according to the lowest wind level, the outer fan operates according to the highest wind level after the operation is carried out for the fourth time period t4, the cleaning device is closed after the operation is carried out for the fifth time period t5, and the air conditioner is closed after the operation is carried out for the sixth time period t 6; if the operation mode before the air conditioner closing instruction is received is the heating mode, the inner fan, the outer fan and the four-way valve are closed, the compressor keeps operating, the cleaning device is started, the outer fan is started and operates according to the highest wind level after the seventh time period t7, the cleaning device is closed after the eighth time period t8, and the air conditioner is closed after the ninth time period t 9.
Preferably, the third time period t3 is within a range of 0.5-1.5 min, the fourth time period t4 is within a range of 1-3 min, the fifth time period t5 is within a range of 1-3 min, the sixth time period t6 is within a range of 0.5-1.5 min, the seventh time period t7 is within a range of 1.5-4.5 min, the eighth time period t8 is within a range of 1-3 min, and the ninth time period t9 is within a range of 0.5-1.5 min.
Preferably, the detection and judgment are carried out every time the air conditioner is started, if the requirements are met, the user firstly enters the automatic cleaning function to control the operation after the air conditioner is shut down when the operation is finished, meanwhile, the display panel of the inner machine displays the cleaning mark of the outer machine, and the air conditioner is shut down after the automatic cleaning is finished.
Two specific cleaning control procedures are provided below:
firstly, judging to learn that the outdoor unit needs to be cleaned, and learning that the starting state of a user is a refrigeration mode before starting a cleaning function:
firstly, an inner fan runs according to the highest wind gear, a compressor runs according to the highest frequency, an outer fan is closed, and a cleaning device is started; in the step, the inner fan runs according to the highest wind level, the compressor runs according to the highest frequency, and the outer fan is closed, so that the temperature of the condenser is increased, and impurities on the condenser are easy to react and fall off after cleaning water of the cleaning device is sprayed on the condenser;
starting an outer fan after 1min and operating according to the lowest wind gear, and operating the outer fan according to the lowest wind gear for 2min and then operating according to the highest wind gear, wherein in the step, an outer fan compressor operates according to the highest frequency and is in a closed state, if the operating time of the air conditioner is longer according to the state, the exhaust pressure of the compressor is higher, so that the air conditioner stops, the outer fan is started and operates according to the lowest wind gear after the air conditioner operates for 1min, the exhaust pressure is reduced, the air conditioner is prevented from being stopped and protected, a cleaning device is cleaned for about 3min, sundries of an outer fan condenser are basically washed, and the highest wind gear of the outer fan operates after 3min, so that the washed sundries on a condenser are blown away;
and thirdly, the cleaning device is closed after the external fan runs for 2min according to the highest wind level, the air conditioner stops after the external fan runs for 1min, the cleaning of the external fan is finished, sundries are basically blown away from the condenser after the fan blows for 2min according to the highest wind level, so that the cleaning device is closed at the moment, the air conditioner continues to run for 1min, on one hand, the sundries are continuously blown off, on the other hand, residual spray water on the condenser is evaporated, the condenser is kept clean, the whole self-cleaning process is finished, and the air conditioner is shut down.
Secondly, the external unit is judged to be cleaned, and the starting state of a user before the cleaning function is started is known as a heating mode:
the method comprises the following steps that firstly, an inner fan, an outer fan and a four-way valve are closed, the air conditioner is switched to be in a refrigerating operation mode, a compressor continues to operate, a cleaning device is started, and because in a refrigerating mode, a condenser on the outdoor side is in a high-temperature state and is easy to clean after water is sprayed, if the state when a user uses the air conditioner is in a heating mode, the air conditioner is switched to be in the refrigerating operation mode, and in order to prevent the temperature on the indoor side from being reduced, the inner fan is closed in the heating mode, and meanwhile, the compressor is started to operate, so that the condenser is kept at a high temperature;
and secondly, after 3min, the external fan is started to operate for 2min according to the highest rotating speed, the cleaning device is closed, after the cleaning device is closed, the air conditioner continues to operate for 1min, the cleaning is prompted to be completed and the air conditioner is closed, the internal fan is closed, the external fan is closed, after the compressor normally controls to operate for 3min, sundries on the condenser are basically washed completely, at the moment, the external fan is started to operate for 2min according to the highest wind, the sundries on the condenser are blown off, after 2min of high wind, the sundries are basically blown off, at the moment, the cleaning device is closed, the air conditioner continues to operate for 1min, on the one hand, the sundries are continuously blown off, on the other hand, spray water remaining on the condenser is evaporated, the condenser is kept clean, at the moment, the whole self-cleaning process is completed, and the air conditioner is shut down.
The control method of the invention solves the problem that the condenser of the outdoor unit is automatically cleaned after the air conditioner runs for a certain time, and avoids the deterioration of the refrigerating and heating effects after the air conditioner runs for a long time.
The invention also provides a self-cleaning device of the air conditioner outdoor unit, which is shown in a combined figure 1 and comprises a controller and a cleaning device 1, wherein the controller is a control system in the air conditioner and is used for realizing any one of the control methods; the cleaning apparatus 1 is used for cleaning an outdoor unit of an air conditioner.
Specifically, the cleaning device 1 comprises a water storage tank 11, a water inlet pipe 12, a filter 13, a water outlet pipe 14, a water pump 15 and a spraying device 16;
the water inlet pipe 12 is suitable for supplementing cleaning water into the water storage tank 11, the water outlet of the water inlet pipe 12 is provided with the filter 13, the water outlet of the water inlet pipe 12 is arranged in the water storage tank 11, and the water outlet of the water inlet pipe 12 is provided with the filter 13, preferably a filter screen, so that the cleaning water of the water inlet pipe 12 can be filtered, and the cleaning water is prevented from polluting an outdoor heat exchanger;
one end of a water outlet pipe 14 is inserted into the bottom of the water storage tank 11, the other end of the water outlet pipe 14 is connected with a spraying device 16, a water pump 15 is arranged on the water outlet pipe 14, the spraying device 16 is arranged above the outdoor unit heat exchanger, and the water pump 15 is suitable for pumping cleaning water in the water storage tank 11 to the spraying device 16 and giving a certain pressure value, so that the cleaning water sprayed to the outdoor unit evaporator has certain impact force, and the cleaning of the outdoor unit heat exchanger is facilitated.
The shower unit 16 is provided above the outdoor heat exchanger, and as shown in fig. 2, the shower unit 16 extends along the top of the heat exchanger, and can clean the entire heat exchanger.
Preferably, cleaning device 1 is internally provided with a liquid level sensor, the liquid level sensor is arranged in water storage tank 11, and the height of the liquid level sensor in the water storage tank is H1, when the liquid level sensor detects that the height of the liquid level in the water storage tank is greater than or equal to H1, water pump 15 can be controlled to be started and the heat exchanger is cleaned, it should be noted that, in the control method, the time required by the cleaning process and the flow driven by the water pump can be calculated, the water quantity required by cleaning the heat exchanger once can be calculated, the water yield of the space in water storage tank 11 with the height lower than H1 is greater than the water quantity required by cleaning the heat exchanger once, the cleaning water quantity is prevented from being insufficient, the heat exchanger cannot be effectively cleaned, the water pump 15 can be prevented from idling, and the use quality of the water pump 15 is protected.
It should be noted that the top of the storage tank 11 is provided with an overflow opening 111, and when the washing water in the storage tank 11 exceeds the maximum capacity, the washing water can flow out from the overflow opening 111, preferably, when the storage tank 11 is arranged at a position close to the outdoor unit, the water flowing out from the overflow opening 111 can flow into the chassis of the outdoor unit and then be discharged through the water discharge opening, and when the storage tank 11 is arranged at another position, the overflow opening 111 can be externally connected with a water discharge pipe for discharging water.
Specifically, as shown in fig. 3 and 4, the water inlet pipe 12 is connected to the condensation water outlet pipe 21 of the indoor unit 3, the indoor unit 3 can generate condensed water during the operation in the cooling mode, and the condensed water can flow into the water inlet pipe 12 through the water receiving tray and finally reach the water storage tank 11 for cleaning the outdoor unit heat exchanger, so as to recycle the water, preferably, the water inlet pipe 12 is connected to the condensation water outlet pipe 21 through the condensed water pipe 22, the condensed water pipe 22 is sleeved outside the refrigerant pipe 23, because the low-temperature condenser water of the indoor unit flows into the water storage tank 11 through the condensed water pipe 2, the condensed water has a cooling effect on the high-temperature and high-pressure refrigerant in the refrigerant pipe 23, so that the cooling capacity of the air conditioner can be improved, and the air conditioner is more energy-saving and environment-friendly.
Preferably, the inlet pipe 12 is still connected with moisturizing pipe 17, and moisturizing pipe 17 includes water pipe, the artifical watered moisturizing pipe 17 or accepts the moisturizing pipe 17 etc. of rainwater, does not produce the moisturizing pipe 17 of comdenstion water through receiving the air conditioner promptly, prevents that the air conditioner from operating in the heating mode or the condition appearance that can't effectively wash by the comdenstion water of collection alone under other circumstances, and when the moisture in the storage water tank 11 was not enough, user's accessible moisturizing pipe 17 mends water, ensures the normal operating of cleaning process.
The self-cleaning device for the outdoor unit of the air conditioner, provided by the invention, can automatically judge and control the cleaning of the heat exchanger of the outdoor unit, prevent the problems that the condenser of the outdoor unit is seriously used for a long time and cannot be cleaned or is difficult to clean, and improve the cleaning degree of the outdoor unit.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A self-cleaning control method for an air conditioner outdoor unit is characterized by comprising the following steps:
firstly, judging the operation mode of the air conditioner, when the air conditioner operates in a refrigeration mode, starting a cleaning device, adjusting the frequency of a compressor and the rotating speed of an inner fan in the cleaning process, controlling the frequency of the compressor to be increased to the maximum, controlling the inner fan to operate at the highest rotating speed, controlling an outer fan to be closed, and then adjusting the rotating speed of the outer fan, controlling the outer fan to be opened and closed and closing the cleaning device according to the operation time.
2. The self-cleaning control method of an outdoor unit of an air conditioner as claimed in claim 1, wherein when the operation mode of the air conditioner is a heating mode, the operation mode is changed to a cooling mode, the cleaning device is turned on, the rotation speed of the inner fan is adjusted during the cleaning process, and the rotation speed of the outer fan is adjusted according to the operation time, the on/off of the outer fan is controlled, and the cleaning device is turned off.
3. The self-cleaning control method of an outdoor unit of an air conditioner as set forth in claim 1, further comprising, before said determining the operation mode of the air conditioner:
recording a first time length t1 of starting operation of the air conditioner or a second time length t2 of the last time of cleaning of the outdoor unit;
and judging whether the air conditioner outdoor unit needs to be cleaned or not according to the first time length t1 or the second time length t2, and controlling a cleaning device to be started if necessary.
4. The self-cleaning control method for the outdoor unit of an air conditioner as claimed in claim 3, wherein the determining whether the outdoor unit of the air conditioner needs cleaning according to the first time period t1 or the second time period t2, and the controlling the cleaning device to be turned on if necessary comprises:
judging whether the first time length t1 is smaller than a first time value or whether the second time length t2 is smaller than a second time value, if so, judging that the air conditioner outdoor unit does not need to be cleaned; and if not, judging that the air conditioner external unit needs to be cleaned, and controlling the cleaning device to be started.
5. The self-cleaning control method of the outdoor unit of an air conditioner as claimed in any one of claims 1 to 4, wherein the cleaning apparatus is turned on when the air conditioner turn-off command is received, and the operation mode before the air conditioner turn-off command is received is obtained, and the air conditioner is turned off after the cleaning is completed.
6. The self-cleaning control method of an outdoor unit of an air conditioner as claimed in claim 5, wherein an outdoor unit cleaning flag is displayed on the display panel of the indoor unit when the cleaning apparatus is turned on, and an outdoor unit cleaning completion flag is displayed after the automatic cleaning is completed.
7. The self-cleaning control method of the outdoor unit of the air conditioner as claimed in claim 5, wherein when the operation mode before receiving the turn-off command of the air conditioner is the cooling mode, the inner fan is operated at the highest wind level, the compressor is operated at the highest frequency, the outer fan is turned off, the cleaning device is turned on, after the operation is performed for a third time period t3, the outer fan is turned on and operated at the lowest wind level, after the operation is performed for a fourth time period t4, the outer fan is operated at the highest wind level, after the operation is performed for a fifth time period t5, the cleaning device is turned off, and after the operation is performed for a sixth time period t6, the air conditioner is turned off.
8. The self-cleaning control method of the outdoor unit of the air conditioner as claimed in claim 5, wherein when the operation mode before receiving the turn-off command of the air conditioner is the heating mode, the operation is changed to the cooling mode, the inner fan and the outer fan are turned off, the compressor is kept in operation, the cleaning device is turned on, the outer fan is turned on and operated at the highest wind level after the operation is performed for a seventh time period t7, the cleaning device is turned off after the operation is performed for an eighth time period t8, and the air conditioner is turned off after the operation is performed for a ninth time period t 9.
9. An air conditioner outdoor unit self-cleaning device, comprising:
a controller for implementing the control method of any one of claims 1 to 8;
the cleaning device (1) is used for cleaning the air conditioner outdoor unit.
10. The self-cleaning device for the outdoor unit of an air conditioner as claimed in claim 9, wherein the cleaning device (1) comprises a water storage tank (11), a water inlet pipe (12), a filter (13), a water outlet pipe (14), a water pump (15) and a spraying device (16);
the water inlet pipe (12) is suitable for supplementing washing water into the water storage tank (11), and the filter (13) is arranged at the water outlet of the water inlet pipe (12);
one end of the water outlet pipe (14) is inserted into the bottom of the water storage tank (11), the other end of the water outlet pipe (14) is connected with a spraying device (16), the water pump (15) is arranged on the water outlet pipe (14), and the spraying device (16) is arranged above the outdoor unit heat exchanger.
11. The self-cleaning apparatus for an outdoor unit of an air conditioner as defined in claim 10, wherein the cleaning apparatus (1) further comprises a liquid level sensor, and the liquid level sensor is located in the water storage tank.
12. The self-cleaning device for the outdoor unit of an air conditioner as claimed in claim 10, wherein the water inlet pipe (12) is connected to a condensation outlet pipe (21) of the indoor unit (2), and/or the water inlet pipe (12) is connected to a water replenishing pipe (17).
13. The self-cleaning device for the outdoor unit of an air conditioner as claimed in claim 12, wherein the water inlet pipe (12) is connected to the water outlet pipe (21) through a condensed water pipe (22), and the condensed water pipe (22) is sleeved outside the refrigerant pipe (23).
14. An air conditioner characterized in that it has an external self-cleaning apparatus as claimed in any one of claims 9 to 13.
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| CN201910666556.7A CN110410925B (en) | 2019-07-23 | 2019-07-23 | Air conditioner device with self-cleaning air conditioner outdoor unit, control method and air conditioner |
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| CN201910666556.7A CN110410925B (en) | 2019-07-23 | 2019-07-23 | Air conditioner device with self-cleaning air conditioner outdoor unit, control method and air conditioner |
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| CN111102684B (en) * | 2020-01-14 | 2021-03-02 | 珠海格力电器股份有限公司 | Cleaning method and device of air conditioner, storage medium and air conditioner |
| CN112747628B (en) * | 2020-12-25 | 2022-04-22 | 格力电器（武汉）有限公司 | Cleaning device for heat exchanger of air conditioner external unit, air conditioner and control method |
| CN114110961A (en) * | 2021-11-10 | 2022-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Cleaning mechanism for automatically cleaning outdoor heat exchanger and control method |
| CN114165851B (en) * | 2021-11-30 | 2023-04-11 | 青岛海信日立空调系统有限公司 | Air conditioning unit |
| CN114216231B (en) * | 2021-12-06 | 2023-05-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Control method of air conditioner and air conditioner |
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| CN101619884A (en) * | 2009-07-28 | 2010-01-06 | 广东志高空调有限公司 | Air-conditioner condensed water recycling device and air-conditioner refrigerating system |
| JP6382666B2 (en) * | 2014-09-26 | 2018-08-29 | シャープ株式会社 | Air conditioner |
| CN105605742B (en) * | 2016-01-26 | 2019-02-15 | 广东美的制冷设备有限公司 | The clean method of heat exchanger of air conditioner |
| CN106931826A (en) * | 2017-03-31 | 2017-07-07 | 美的集团武汉制冷设备有限公司 | Air-conditioner outdoor unit cleaning device, method, air-conditioner outdoor unit and air-conditioning |
| CN107199994A (en) * | 2017-06-19 | 2017-09-26 | 宋炫樟 | A kind of micro- water cleaning of portable multi-function automobile and aerating device |
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