CN113739351B - Air conditioner and drainage method thereof - Google Patents
Air conditioner and drainage method thereof Download PDFInfo
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- CN113739351B CN113739351B CN202111078111.0A CN202111078111A CN113739351B CN 113739351 B CN113739351 B CN 113739351B CN 202111078111 A CN202111078111 A CN 202111078111A CN 113739351 B CN113739351 B CN 113739351B
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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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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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
- 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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F11/88—Electrical aspects, e.g. 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/228—Treatment of condensate, e.g. sterilising
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a drainage method thereof, wherein the air conditioner comprises a compressor, an outdoor fan, an indoor fan, a water pan, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch; starting operation in response to a heating mode of an air conditioner, and acquiring the position of a low water level switch; when the low water level switch is in a first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start; after the water pump operates for a first time period, judging whether a low water level switch is at a first low water level position; if yes, controlling the water pump to stop; if not, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, the water pumping motor and the outdoor fan are controlled to operate for a second time period, and the water pump is controlled to stop until the low water level switch is detected to be in the first low water level position. By adopting the embodiment of the invention, the problem that the integral air conditioner is difficult to drain water during heating can be solved, and the use comfort of users is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a water drainage method thereof.
Background
When the existing integral air conditioner is used for heating, if an outdoor heat exchanger frosts, a water receiving tray in the machine can generate a lot of water after the defrosting is finished, and the existing drainage technology is to install a drainage pipe at the lowest position of the air conditioner device. Because the drain pipe is installed in air conditioning equipment's minimum, the water receiving device just must be installed in the position that still is low than air conditioning equipment's minimum, and the user need move air conditioning equipment to another place that has the step in actual drainage process just can clean the log raft, or raise refrigerating plant and just guarantee that the water receiving device still is low than air conditioning equipment's minimum just can clean the log raft, and air conditioning drainage is inconvenient, and the user uses the travelling comfort of air conditioner not high.
Disclosure of Invention
The embodiment of the invention aims to provide a cooling and heating integrated air conditioner which can solve the problem that the integral air conditioner is difficult to drain water during heating and improve the use comfort of users.
To achieve the above object, an embodiment of the present invention provides an air conditioner, including:
the temperature control system is used for controlling the operation mode of the air conditioner and at least comprises a compressor, an outdoor fan and an indoor fan;
the drainage device is used for draining water generated by the running of the air conditioner and comprises a water receiving disc, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch;
the controller is configured to include:
responding to the starting operation of a heating mode of an air conditioner, and acquiring the position of the low water level switch;
when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
after the water pump operates for a preset first time period, judging whether the low water level switch is at a preset first low water level position or not;
if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position.
As an improvement of the above, the controller is further configured to:
and after the water fetching motor and the outdoor fan operate for a second time period, if the low water level switch is not at the first low water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate.
As an improvement of the above, after the operation is started in response to the heating mode of the air conditioner, the controller is further configured to:
acquiring the position of the high water level switch;
when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
when the high water level switch is at a preset second high water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate for a preset third time period.
As an improvement of the above, the controller is further configured to:
after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
if so, sending a water full prompt and controlling the air conditioner to be shut down; if not, the position of the low water level switch is obtained.
In order to achieve the above object, an embodiment of the present invention further provides an air conditioner drainage method, which is suitable for an air conditioner, where the air conditioner includes a compressor, an outdoor fan, an indoor fan, a water pan, a water pump, a drain pipe, a water fetching motor, a high water level switch, and a low water level switch; the air conditioner drainage method comprises the following steps:
responding to the heating mode starting operation of the air conditioner, and acquiring the position of the low water level switch;
when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
after the water pump operates for a preset first time period, judging whether the low water level switch is at a preset first low water level position;
if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position.
As an improvement of the above scheme, the air conditioner drainage method further comprises:
after the water fetching motor and the outdoor fan operate for a second time period, if the low water level switch is not at the first low water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate.
As an improvement of the above, after the operation is started in response to the heating mode of the air conditioner, the air conditioner drainage method further includes:
acquiring the position of the high water level switch;
when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
when the high water level switch is at a preset second high water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate for a preset third time period.
As an improvement of the above scheme, the air conditioner drainage method further comprises:
after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
if so, sending a water full prompt and controlling the air conditioner to be shut down; if not, the position of the low water level switch is obtained.
Compared with the prior art, the air conditioner and the water drainage method thereof provided by the embodiment of the invention have the advantages that the high water level switch and the low water level switch are arranged in the water pan to monitor the water level information of the water pan, so that the operation of the water pump is controlled by adopting different control logics according to the detected water level position, the water in the water pan is pumped out by the water pump in time, meanwhile, the operation of the water beating motor and the outdoor fan is controlled by adopting different control logics according to the detected water level position, the water in the water pan is beaten on the heat exchanger by the operation of the water beating motor, and the air flow generated by the operation of the outdoor fan is blown out. The water in the water tray is drained through the two modes, so that the problem that the integral air conditioner is difficult to drain water during heating can be solved, and the use comfort of a user is improved.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an operation of a controller in an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a water level of the water pan according to an embodiment of the present invention;
fig. 4 is a flowchart of an air conditioner drainage method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention, where the air conditioner includes:
the temperature control system 10 is used for controlling the operation mode of the air conditioner and at least comprises a compressor, an outdoor fan and an indoor fan;
and the drainage device 20 is used for draining water generated during the operation of the air conditioner and comprises a water pan, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch.
Furthermore, the temperature control system also comprises an indoor heat exchanger, an outdoor heat exchanger, a four-way valve reversing device and a throttling device.
It should be noted that the drain pipe according to the embodiment of the present invention may be installed at a position higher than the water-receiving tray, the water pump is used to pump the water of the water-receiving tray to the drain pipe, and the pumped water is discharged through the drain pipe; the water fetching motor and the outdoor fan operate simultaneously, the water fetching motor in the water receiving tray can be fetched to the heat exchanger, and part of water on the heat exchanger is blown out through air flow generated by the outdoor fan and is absorbed by air.
It is worth mentioning that the controller works with reference to fig. 2. Referring to fig. 3, the water level diagram of the drip tray includes a second high water level position H2 and a second low water level position L2 corresponding to the high water level switch, and a first high water level position H1 and a first low water level position L1 corresponding to the low water level switch, where H2> L2> H1> L1.
Specifically, when the air conditioner is started, if the user selects the heating mode, the controller is configured to, in response to the starting operation of the heating mode of the air conditioner, during the process:
acquiring the position of the low water level switch;
when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
after the water pump operates for a preset first time period, judging whether the low water level switch is at a preset first low water level position;
if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water pumping motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position;
and after the water fetching motor and the outdoor fan operate for a second time period, if the low water level switch is not at the first low water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate.
Illustratively, the controller 30 detects the position of the low level switch, and when the low level switch is located at the first low level position L1, it indicates that the water level in the drip tray is low and no drainage operation is required, and controls the air conditioner to normally heat and the water pump to stop. When the low level switch is located at the first high level position H1, which indicates that the water level in the drip tray is high, a water pump is required to drain water, and the controller 30 controls the water pump to start and operates the water pump for a first period of time N1 (e.g., 3 minutes). And the water pump pumps out the water in the water receiving tray in the running process and discharges the water through a drainage pipe connected with the water receiving tray.
After the water pump operates for a first time period N1, judging whether the low water level switch is at the first low water level position L1, if the low water level switch is at the first low water level position L1, indicating that a large part of water in the water pan is discharged after the water pump operates, and controlling the air conditioner to normally heat and controlling the water pump to stop when the water pump does not need to continue to discharge water; if the low water level switch is not at the first low water level position L1, indicating that the water in the water pan is still more after the water pump is operated, at this time, a water full prompt (which is eliminated when the water pump is restarted) needs to be sent, and the compressor and the indoor fan are controlled to be stopped, and the water-fetching motor and the outdoor fan are controlled to operate for a second time period N2 (for example, 10 minutes).
After the water pumping motor and the outdoor fan operate for a second time period N2, continuously detecting the position of the low water level switch, and if the low water level switch is lowered to the first low water level position L1, controlling the air conditioner to normally heat and controlling the water pump to stop; if the low water level switch is still not at the first low water level position L1, a water full prompt is sent (the water full prompt is eliminated when the machine is restarted), the compressor and the indoor fan are controlled to stop, the water pumping motor and the outdoor fan are controlled to operate, and finally the machine is waited to be restarted.
Further, in the embodiment of the present invention, before acquiring the position of the low water level switch, the position of the high water level switch needs to be determined, at this time, the controller 30 is further configured to:
acquiring the position of the high water level switch;
when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
when the high water level switch is at a preset second high water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate for a preset third time period;
after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
if so, sending a water full prompt and controlling the air conditioner to be shut down; if not, the position of the low water level switch is obtained.
Illustratively, the controller 30 first detects the position of the high level switch, and when the high level switch is at the second low level position L2, indicating that the water level of the drip tray is not so high, the draining operation is not required for a while, and then further detects the position of the low level switch. When the high water level switch is at the second high water level position H2, the water level of the water pan is high at the moment, the water drainage operation needs to be performed immediately, the water full information is prompted at the moment (the water full information cannot be eliminated when the air conditioner is restarted), the compressor and the indoor fan are controlled to stop, the water beating motor and the outdoor fan are controlled to operate for a third time period N3 (for 10 minutes, for example), the water beating motor drives the water in the water pan to the outdoor heat exchanger, and in combination with the operation of the outdoor fan, a part of water beating the heat exchanger is blown out through the airflow generated by the external fan and is absorbed by the air.
And after the water fetching motor and the outdoor fan operate for a third time period N3, judging whether the high water level switch is lowered to the second low water level position. If the high water level switch is lowered to the second low water level position, the position of the low water level switch is further acquired; if the high water level switch is not lowered to the second low water level position, the air conditioner is controlled to be powered off at the moment, and a water full prompt is sent out (the water full information cannot be eliminated when the air conditioner is restarted), and at the moment, a user needs to manually drain water. And continuously judging whether the high water level switch is lowered to the second low water level position after a period of time, if so, continuing heating operation of the air conditioner, and if not, continuously displaying a water full prompt, so that the water level in the water receiving tray is too high, and the air conditioner cannot operate even after restarting.
Compared with the prior art, the air conditioner provided by the embodiment of the invention has the advantages that the high water level switch and the low water level switch are arranged in the water pan to monitor the water level information of the water pan, so that the operation of the water pump is controlled by adopting different control logics according to the detected water level position, the water in the water pan is pumped out by the water pump in time, meanwhile, the operation of the water beating motor and the outdoor fan is controlled by adopting different control logics according to the detected water level position, the water in the water pan is beaten onto the heat exchanger by the operation of the water beating motor, and the air flow generated by the operation of the outdoor fan is blown out. The water in the water tray is drained through the two modes, so that the problem that the integral air conditioner is difficult to drain water during heating can be solved, and the use comfort of a user is improved.
Referring to fig. 4, fig. 4 is a flowchart of a drainage method of an air conditioner according to an embodiment of the present invention, where the drainage method of the air conditioner is applicable to an air conditioner, and the air conditioner includes a compressor, an outdoor fan, an indoor fan, a water pan, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch; the air conditioner drainage method comprises the following steps:
s11, responding to the heating mode starting operation of the air conditioner, and acquiring the position of the low water level switch;
s12, when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
s13, after the water pump runs for a preset first time period, judging whether the low water level switch is at a preset first low water level position;
s14, if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position.
Further, after the water pumping motor and the outdoor fan are operated for a second time period, the water discharging method further includes step S15:
and S15, if the low water level switch is not at the first low water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop, and controlling the water fetching motor and the outdoor fan to operate.
It should be noted that the drain pipe according to the embodiment of the present invention may be installed at a position higher than the water-receiving tray, the water pump is used to pump the water of the water-receiving tray to the drain pipe, and the pumped water is discharged through the drain pipe; the water fetching motor and the outdoor fan operate simultaneously, the water fetching motor can fetch water from the water receiving tray onto the heat exchanger, and part of water on the heat exchanger is blown out through air flow generated by the outdoor fan and is absorbed by air. Referring to fig. 3, the water level diagram of the water pan may include that the water level line corresponding to the high water level switch includes a second high water level position H2 and a second low water level position L2, and the water level line corresponding to the low water level switch includes a first high water level position H1 and a first low water level position L1, H2> L2> H1> L1.
Illustratively, the position of the low level switch is first detected, and when the low level switch is located at the first low level position L1, it indicates that the water level in the water pan is low at this time, and no water drainage operation is required, and at this time, the air conditioner is controlled to normally heat and the water pump is controlled to stop. When the low water level switch is located at the first high water level position H1, indicating that the water level in the water pan is high at this time, a water pump needs to be used for draining water, the water pump is controlled to start, and the water pump is controlled to operate for a first time period N1 (for example, 3 minutes). And the water pump pumps out the water in the water receiving tray in the running process and discharges the water through a drainage pipe connected with the water receiving tray.
After the water pump operates for a first time period N1, judging whether the low water level switch is at the first low water level position L1, if the low water level switch is at the first low water level position L1, indicating that a large part of water in the water pan is discharged after the water pump operates, and controlling the air conditioner to normally heat and controlling the water pump to stop when the water pump does not need to continue to discharge water; if the low water level switch is not at the first low water level position L1, indicating that the water in the water pan is still more after the water pump is operated, at this time, a water full prompt (which is eliminated when the water pump is restarted) needs to be sent, and the compressor and the indoor fan are controlled to be stopped, and the water-fetching motor and the outdoor fan are controlled to operate for a second time period N2 (for example, 10 minutes).
After the water pumping motor and the outdoor fan operate for a second time period N2, continuously detecting the position of the low water level switch, and if the low water level switch is lowered to the first low water level position L1, controlling the air conditioner to normally heat and controlling the water pump to stop; if the low water level switch is still not at the first low water level position L1, a water full prompt is sent (the water full prompt is eliminated when the machine is restarted), the compressor and the indoor fan are controlled to stop, the water pumping motor and the outdoor fan are controlled to operate, and finally the machine is waited to be restarted.
Further, in the embodiment of the present invention, before obtaining the position of the low water level switch, the position of the high water level switch needs to be determined, and at this time, the air conditioner drainage method further includes:
s21, acquiring the position of the high water level switch;
s22, when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
s23, when the high water level switch is at a preset second high water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset third time period;
s24, after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
s25, if yes, sending a water full prompt and controlling the air conditioner to shut down; if not, the position of the low water level switch is obtained.
Illustratively, the position of the high level switch is detected first, and when the high level switch is at the second low level position L2, which indicates that the water level of the water receiving tray is not so high, the water discharging operation is not needed for a while, and the position of the low level switch is further detected, that is, steps S11-S15 are performed. When the high water level switch is at the second high water level position H2, the water level of the water pan is high at the moment, the water drainage operation needs to be performed immediately, the water full information is prompted at the moment (the water full information cannot be eliminated when the air conditioner is restarted), the compressor and the indoor fan are controlled to stop, the water beating motor and the outdoor fan are controlled to operate for a third time period N3 (for 10 minutes, for example), the water beating motor drives the water in the water pan to the outdoor heat exchanger, and in combination with the operation of the outdoor fan, a part of water beating the heat exchanger is blown out through the airflow generated by the external fan and is absorbed by the air.
And after the water fetching motor and the outdoor fan operate for a third time period N3, judging whether the high water level switch is lowered to the second low water level position. If the high water level switch is lowered to the second low water level position, the position of the low water level switch is further acquired, namely steps S11-S15 are executed; if the high water level switch is not lowered to the second low water level position, the air conditioner is controlled to be powered off at the moment, and a water full prompt is sent out (the water full information cannot be eliminated when the air conditioner is restarted), and at the moment, a user needs to manually drain water. And continuously judging whether the high water level switch is lowered to the second low water level position after a period of time, if so, continuing heating operation of the air conditioner, and if not, continuously displaying a water full prompt, so that the water level in the water receiving tray is too high, and even if the water full fault information cannot be eliminated after restarting, stopping the indoor fan, the water fetching motor and the outdoor fan until the high water level switch is lowered to the second low water level position.
Compared with the prior art, the air conditioner drainage method provided by the embodiment of the invention has the advantages that the high water level switch and the low water level switch are arranged in the water pan to monitor the water level information of the water pan, so that the operation of the water pump is controlled by adopting different control logics according to the detected water level position, the water in the water pan is timely pumped out by the water pump, meanwhile, the operation of the water beating motor and the outdoor fan is controlled by adopting different control logics according to the detected water level position, the water in the water pan is beaten onto the heat exchanger by the operation of the water beating motor, and the air flow generated by the operation of the outdoor fan is blown out. The water in the water tray is drained through the two modes, so that the problem that the integral air conditioner is difficult to drain water during heating can be solved, and the use comfort of a user is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. An air conditioner, characterized in that, the air conditioner is an integral cooling and heating air conditioner, the air conditioner includes:
the temperature control system is used for controlling the operation mode of the air conditioner and at least comprises a compressor, an outdoor fan and an indoor fan;
the drainage device is used for draining water generated by the running of the air conditioner and comprises a water pan, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch;
the controller is configured to include:
responding to the starting operation of a heating mode of an air conditioner, and acquiring the position of the low water level switch;
when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
after the water pump operates for a preset first time period, judging whether the low water level switch is at a preset first low water level position;
if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position.
2. The air conditioner of claim 1, wherein the controller is further configured to:
and after the water fetching motor and the outdoor fan operate for a second time period, if the low water level switch is not at the first low water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate.
3. The air conditioner of claim 1, wherein after initiating operation in response to a heating mode of the air conditioner, the controller is further configured to:
acquiring the position of the high water level switch;
when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
when the high water level switch is at a preset second high water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate for a preset third time period;
wherein the second high water level position is greater than the second low water level position, the second low water level position is greater than the first high water level position, and the first high water level position is greater than the first low water level position.
4. The air conditioner of claim 3, wherein the controller is further configured to:
after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
if so, sending a water full prompt and controlling the air conditioner to be shut down; if not, the position of the low water level switch is obtained.
5. A drainage method of an air conditioner is characterized in that the method is suitable for an integral type cooling and heating air conditioner, wherein the air conditioner comprises a compressor, an outdoor fan, an indoor fan, a water pan, a water pump, a drainage pipe, a water pumping motor, a high water level switch and a low water level switch; the air conditioner drainage method comprises the following steps:
responding to the starting operation of a heating mode of an air conditioner, and acquiring the position of the low water level switch;
when the low water level switch is at a preset first high water level position, controlling the air conditioner to perform a heating mode and controlling the water pump to start;
after the water pump operates for a preset first time period, judging whether the low water level switch is at a preset first low water level position;
if yes, controlling the water pump to stop; if not, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate for a preset second time period, and controlling the water pump to stop until the low water level switch is detected to be at the first low water level position.
6. The air conditioner drainage method as set forth in claim 5, further comprising:
and after the water fetching motor and the outdoor fan operate for a second time period, if the low water level switch is not at the first low water level position, sending a water full prompt, controlling the compressor and the indoor fan to stop and controlling the water fetching motor and the outdoor fan to operate.
7. The air conditioner drainage method as claimed in claim 5, wherein after starting operation in response to a heating mode of an air conditioner, the air conditioner drainage method further comprises:
acquiring the position of the high water level switch;
when the high water level position is at a preset second low water level position, acquiring the position of the low water level switch;
when the high water level switch is at a preset second high water level position, a water full prompt is sent, the compressor and the indoor fan are controlled to stop, and the water fetching motor and the outdoor fan are controlled to operate for a preset third time period;
wherein the second high water level position is greater than the second low water level position, the second low water level position is greater than the first high water level position, and the first high water level position is greater than the first low water level position.
8. The air conditioner drainage method as claimed in claim 7, further comprising:
after the water fetching motor and the outdoor fan operate for a third time period, judging whether the high water level switch is still at the second high water level position;
if so, sending a water full prompt and controlling the air conditioner to be shut down; if not, the position of the low water level switch is obtained.
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