CN111637582A - Air conditioner control method and device, storage medium and air conditioner - Google Patents
Air conditioner control method and device, storage medium and air conditioner Download PDFInfo
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- CN111637582A CN111637582A CN202010441306.6A CN202010441306A CN111637582A CN 111637582 A CN111637582 A CN 111637582A CN 202010441306 A CN202010441306 A CN 202010441306A CN 111637582 A CN111637582 A CN 111637582A
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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
- F24F11/61—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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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Abstract
The invention provides an air conditioner control method, an air conditioner control device, a storage medium and an air conditioner, wherein the method comprises the following steps: the method comprises the following steps: in a refrigeration mode, after the air conditioner is subjected to water full protection, detecting whether the time for the water full protection exceeds a preset time threshold value; if the time of the occurrence of the water full protection does not exceed a preset time threshold, controlling a water pump to operate at a first preset load, and judging the reason of the occurrence of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load; and if the time of occurrence of the water full protection exceeds a preset time threshold, detecting the current indoor environment temperature and humidity so as to judge the reason of occurrence of the water full protection of the air conditioner and/or control the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity. The scheme provided by the invention can intelligently judge the specific reason of water full protection.
Description
Technical Field
The invention relates to the field of control, in particular to an air conditioner control method and device, a storage medium and an air conditioner.
Background
At present, to air conditioners such as raise boring machine (smallpox machine), tuber pipe machine, seat loop wheel machine, it is clean for the drainage, the comdenstion water of avoiding the too much condensate water that leads to of comdenstion water to overflow the water collector simultaneously, all need set up water pump and level switch, but when the user uses, if the water collector water is full of the protection appears, the air conditioner can be shut down, it is too much to avoid the comdenstion water to produce, the water collector leaks, then can lead to the user in the great stage of refrigeration volume demand, the air conditioner does not have the cold volume output condition to appear. In the actual use process, due to the problem of installation angle of an air conditioner internal unit or the fact that indoor humidity is high, the condensate water generation speed is higher than the water pump drainage speed; or the problem of water full protection caused by drain pipe condensate water backflow can cause water full protection in the using process of a user, and user experience is influenced.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provides an air conditioner control method, an air conditioner control device, a storage medium and an air conditioner so as to solve the problem that the air conditioner does not output cold energy at the stage of large refrigerating capacity demand of a user due to the fact that the air conditioner is fully protected and shut down when water is full in the prior art.
One aspect of the present invention provides an air conditioner control method, including: in a refrigeration mode, after the air conditioner is subjected to water full protection, detecting whether the time for the water full protection exceeds a preset time threshold value; if the time of the occurrence of the water full protection does not exceed a preset time threshold, controlling a water pump to operate at a first preset load, and judging the reason of the occurrence of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load; and if the time of occurrence of the water full protection exceeds a preset time threshold, detecting the current indoor environment temperature and humidity so as to judge the reason of occurrence of the water full protection of the air conditioner and/or control the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity.
Optionally, controlling the cooling operation of the air conditioner according to a result of the water pump operating at a first preset load includes: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop; if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation; according to the result that the water pump operates at the preset load, the reason that the air conditioner is protected by water fullness is judged, and the method comprises the following steps: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, judging that the condensate water of the refrigeration operation drain pipe flows back.
Optionally, based on the current indoor environment temperature and humidity, determining a reason for water full protection of the air conditioner and/or controlling the cooling operation of the air conditioner includes: if the current indoor environment temperature is detected to be greater than or equal to a preset temperature threshold value and the indoor environment humidity is detected to be greater than or equal to a preset humidity threshold value corresponding to the current indoor environment temperature, controlling the compressor to operate at a preset frequency; the preset frequency comprises: the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature; judging the reason for water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency; and/or detecting the last refrigerating operation time if the current indoor environment temperature is smaller than the preset temperature threshold and the indoor environment humidity is smaller than the preset humidity threshold corresponding to the current indoor environment temperature; and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time.
Optionally, the determining, according to an operation result of the compressor operating at a preset frequency, a reason for occurrence of water full protection of the air conditioner and/or controlling a cooling operation of the air conditioner includes: if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to run normally; if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode; and/or, judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time, and the method comprises the following steps: if the detected last refrigeration running time reaches the preset running time, controlling the water pump to run at a third preset load and controlling the compressor to run at a preset frequency; if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigeration operation causes the water receiving tray to store water and/or controlling the normal refrigeration operation of the air conditioner; and if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch.
Optionally, whether the reason for the full water protection of the air conditioner occurs and/or the refrigeration operation of the air conditioner is controlled is judged according to whether the output signals of the left liquid level switch and the right liquid level switch are consistent or not, and the method comprises the following steps: if the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and the air conditioner is controlled to normally refrigerate and run; and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and controlling the air conditioner to normally refrigerate and run.
Another aspect of the present invention provides an air conditioning control apparatus, including: the first detection unit is used for detecting whether the time of occurrence of water full protection exceeds a preset time threshold value or not after the air conditioner has the water full protection in a refrigeration mode; the control unit is used for controlling the water pump to operate at a first preset load if the time of occurrence of the water full protection does not exceed a preset time threshold value, so as to judge the reason of occurrence of the water full protection of the air conditioner and/or control the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load; the second detection unit is used for detecting the current indoor environment temperature and humidity if the time of the water full protection exceeds a preset time threshold; the control unit is further configured to: and judging the reason of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity detected by the second detection unit.
Optionally, the determining, by the control unit, a reason for occurrence of water full protection of the air conditioner according to a result of the water pump operating at a preset load includes: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault; if the air conditioner does not have water full protection after the water pump operates for a first preset time at a preset load, judging that the condensate water of the refrigeration operation drain pipe flows back; the control unit controls the cooling operation of the air conditioner according to a result that the water pump operates at a first preset load, including: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation.
Optionally, the determining, by the control unit, a reason for water full protection of the air conditioner and/or controlling the cooling operation of the air conditioner based on the current indoor environment temperature and humidity detected by the second detecting unit includes: if the current indoor environment temperature is detected to be greater than or equal to a preset temperature threshold value and the indoor environment humidity is detected to be greater than or equal to a preset humidity threshold value corresponding to the current indoor environment temperature, controlling the compressor to operate at a preset frequency; the preset frequency comprises: the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature; judging the reason for water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency; and/or detecting the last refrigerating operation time if the current indoor environment temperature is smaller than the preset temperature threshold and the indoor environment humidity is smaller than the preset humidity threshold corresponding to the current indoor environment temperature; and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time.
Optionally, the controlling unit, according to an operation result that the compressor operates at a preset frequency, determines a reason why the air conditioner has water full protection and/or controls a cooling operation of the air conditioner, including: if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to run normally; if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode; and/or, judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time, and the method comprises the following steps: if the detected last refrigeration running time reaches the preset running time, controlling the water pump to run at a third preset load and controlling the compressor to run at a preset frequency; if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigeration operation causes the water receiving tray to store water and/or controlling the normal refrigeration operation of the air conditioner; and if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch.
Optionally, the control unit, whether unanimous reason and/or control that full protection of water appears in the air conditioner according to controlling the liquid level switch output signal about the air conditioner includes: if the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and the air conditioner is controlled to normally refrigerate and run; and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and controlling the air conditioner to normally refrigerate and run.
A further aspect of the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods described above.
Yet another aspect of the present invention provides an air conditioner comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of any of the methods described above when executing the program.
In another aspect, the invention provides an air conditioner, which comprises the air conditioner control device.
According to the technical scheme of the invention, the specific reason of the water full protection is intelligently judged by detecting the occurrence time of the water full protection and adjusting the operation of a water pump or detecting the indoor environment temperature, and the continuous refrigeration operation of the air conditioner can be controlled; according to the technical scheme of the invention, when the water full protection time exceeds the preset time threshold, the specific reason of the water full protection is accurately identified by adjusting the output of the water pump and/or the frequency of the compressor and/or judging the last refrigerating operation time based on the current indoor environment temperature and humidity, and the air conditioner is enabled to normally refrigerate and operate by adopting corresponding control logic.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of an air conditioner control method according to the present invention;
FIG. 2 is a schematic diagram of an embodiment of a method for controlling an air conditioner according to the present invention;
fig. 3 is a block diagram of an embodiment of an air conditioning control apparatus according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic method diagram of an embodiment of an air conditioner control method provided by the present invention.
As shown in fig. 1, according to an embodiment of the present invention, the air conditioner control method includes at least step S110 and step S130.
Step S110, in a refrigeration mode, after the air conditioner is subjected to water full protection, whether the time of the water full protection exceeds a preset time threshold value is detected.
Specifically, in the cooling mode, when the water-full protection occurs for the first time, the occurrence time Tb of the water-full protection is detected, and it is determined whether the occurrence time Tb of the water-full protection exceeds a preset time threshold, for example, whether Tb exceeds 1 minute (preset time threshold).
And step S120, if the time of the occurrence of the water full protection does not exceed a preset time threshold, controlling a water pump to operate at a first preset load for a first preset time, and judging the reason of the occurrence of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load.
The first predetermined load is greater than the rated load of the water pump, for example, 200% of the rated load, for example, the water pump is operated at 200% of the rated speed. Increase water pump running load, can improve water pump displacement, be favorable to solving the full protection of water to start the low-load refrigeration, ensure user experience. For example, the preset time threshold is 1 minute, and if the water full protection time Tb is 1 minute or less, the water pump is controlled to continue operating at 200% load.
If the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, judging that the condensate water of the refrigeration operation drain pipe flows back. Full water protection can be removed when the water pump runs at full load, and the water protection does not appear in early-stage refrigeration, which indicates that the condensed water of the drain pipe flows back to the water pan due to the shutdown of the water pump in a shutdown state. If the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation.
For example, after the 200% load water pump continuously runs for 2min, whether water full protection still exists is judged, if the water full protection still exists, a fault of the water pump is reported, and the air conditioner is stopped; if the water full protection does not appear any more, the condensate water of the refrigeration operation drain pipe is judged to flow back, and the subsequent refrigeration operation can be performed according to the normal refrigeration.
And step S130, if the time of the occurrence of the water full protection exceeds a preset time threshold, detecting the current indoor environment temperature and humidity, and judging the reason of the occurrence of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity.
And if the current indoor environment temperature is detected to be greater than or equal to a preset temperature threshold and the indoor environment humidity is detected to be greater than or equal to a preset humidity threshold corresponding to the current indoor environment temperature, controlling the compressor to operate at a preset frequency, and judging the reason for water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency.
The preset frequency specifically comprises the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature, namely the lower limit frequency, so that the operation of the air conditioner at a low refrigerating capacity is ensured, the refrigerating requirement of a user is ensured, and less condensed water is also ensured. Specifically, if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to normally run in a refrigerating mode; and if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode. The second predetermined load is greater than the rated load of the water pump, for example, 200% of the rated load.
For example, if Tr is more than or equal to 27 ℃, whether the indoor humidity is larger than a preset humidity threshold corresponding to the current environment temperature is judged, if yes, the indoor humidity is judged to be larger, the condensate water generation speed is larger, the compressor operates for 10min (second preset time) according to the lower limit frequency, if the water full protection is still reported, the water pump is controlled to continuously operate for 5min (third preset time) at 200% load, normal refrigeration operation is carried out, and if the water full protection is not reported, the normal refrigeration operation is carried out.
If the current indoor environment temperature is detected to be smaller than the preset temperature threshold and the indoor environment humidity is detected to be smaller than the preset humidity threshold corresponding to the current indoor environment temperature, the last refrigerating operation time is detected; and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time. If the detected last refrigerating operation time reaches the preset operation time, controlling the water pump to operate at a third preset load and controlling the compressor to operate at a preset frequency; and if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigerating operation causes the water receiving tray to store water and/or controlling the air conditioner to normally refrigerate. The third predetermined load is greater than the rated load of the water pump, and preferably, the third predetermined load is less than the first predetermined load, for example, 150% of the rated load.
For example, if Tr is less than 27 ℃, whether the indoor humidity is less than a preset humidity threshold corresponding to the current environment temperature is judged, if yes, the indoor humidity is judged to be low, last starting operation time needs to be detected, whether last refrigerating operation leads to water storage of the water receiving tray is judged, if last refrigerating operation time is more than or equal to 6 hours, the water pump continuously operates for 3min (fourth preset time) at 150% load (third preset load), the compressor operates at a lower limit frequency, and if water full protection is not detected subsequently, it is judged that last refrigerating operation leads to water storage of the water receiving tray, and normal refrigerating operation is performed.
And if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch. Preferably, the internal unit adopts double-liquid level switch, and simultaneously, the liquid level switch and the water pan are slightly lower by 0.5mm relative to the normal unit position, so as to avoid the overflow of the condensed water and leave the space allowance. For example, the normal depth of the water receiving tray is about 45mm, the height of the liquid level switch from the bottom of the water receiving tray is about 40mm under the normal condition, and a margin of 0.5-2mm, for example, a height difference of 38mm, can be used for early warning of water full protection.
If the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and then the air conditioner is controlled to normally refrigerate and operate, namely the condensed water of the inner machine is completely discharged, and then the normal refrigeration operation is carried out; and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and then controlling the air conditioner to normally refrigerate and run.
For example, if the last refrigerating operation time is less than 6 hours, the output signals of the left and right liquid level switches need to be detected, if the output signals are consistent, the compressor stops until the water is full, and the drainage of condensed water in the internal machine is ensured; if the output signals are not consistent, the air conditioner is judged to be installed out of level, a user is reminded, the compressor stops until the water is full, and normal refrigeration is started again.
Optionally, after the reason for the water full protection of the air conditioner is judged, the reason is output, for example, the reason for the water full protection is displayed, for example, a code or a character is displayed.
For clearly explaining the technical solution of the present invention, the following describes an execution flow of the air conditioner control method provided by the present invention with a specific embodiment.
Fig. 2 is a schematic method diagram of an embodiment of an air conditioner control method according to the present invention.
Under a refrigeration mode, full water protection occurs for the first time, occurrence time Tb of full water protection is detected, if Tb is less than or equal to 1 minute (preset time threshold), after a water pump is controlled to continuously run for 2 minutes (first preset time) at a load of 200% (first preset load), whether full water protection still exists is judged, and if full water protection still exists, a water pump fault is reported; if the water full protection does not appear any more, the condensate water of the refrigeration operation drain pipe is judged to flow back, and the subsequent refrigeration operation is carried out normally.
If Tb is more than 1 minute, firstly detecting indoor environment temperature Tr, if Tr is more than or equal to 27 ℃ (preset temperature threshold), judging that indoor humidity is high and condensate water generation speed is high, controlling a compressor to operate for 10min (second preset time) at a lower limit frequency, if water full protection is still reported in detection, controlling a water pump to continuously operate for 5min (third preset time) at a load of 200% (second preset load) and then normally operate, and if water full protection is not reported in detection, normally operating. If Tr is less than 27 ℃, judging that the indoor humidity is low, detecting the last starting operation time, and judging whether the last refrigerating operation causes water storage of the water pan, specifically, if the last refrigerating operation time is more than or equal to 6h (preset operation time), controlling the water pump to continuously operate for 3min (third preset time) at a load of 150% (third preset load), operating the compressor at a lower limit frequency, and subsequently, if full protection of water is not detected, judging that the last refrigerating operation causes water storage of the water pan according to normal refrigerating operation. If the last operation time is less than 6h, output signals of the left liquid level switch and the right liquid level switch need to be detected, if the output signals are consistent, the compressor stops until the water full protection is finished, and the drainage of condensed water of the inner machine is ensured; if the output signals are not consistent, the air conditioner is judged to be installed out of level, a user is reminded, the compressor stops running until the protection is finished when the water is full, and normal refrigeration is carried out again.
Fig. 3 is a block diagram of an embodiment of an air conditioning control apparatus according to the present invention. As shown in fig. 3, the air conditioning control device 100 includes a first detection unit 110, a control unit 120, and a second detection unit 130.
The first detecting unit 110 is configured to detect whether a time of occurrence of water full protection exceeds a preset time threshold after the air conditioner has the water full protection in a cooling mode.
Specifically, in the cooling mode, when the water-full protection occurs for the first time, the occurrence time Tb of the water-full protection is detected, and it is determined whether the occurrence time Tb of the water-full protection exceeds a preset time threshold, for example, whether Tb exceeds 1 minute (preset time threshold).
The control unit 120 is configured to, if the time when the water full protection occurs does not exceed a preset time threshold, control the water pump to operate at a first preset load for a first preset time, so as to determine a reason why the water full protection occurs in the air conditioner and/or control the cooling operation of the air conditioner according to a result that the water pump operates at the first preset load.
The first predetermined load is greater than the rated load of the water pump, for example, 200% of the rated load, for example, the water pump is operated at 200% of the rated speed. Increase water pump running load, can improve water pump displacement, be favorable to solving the full protection of water to start the low-load refrigeration, ensure user experience. For example, the preset time threshold is 1 minute, and if the water full protection time Tb is 1 minute or less, the water pump is controlled to continue operating at 200% load.
The control unit judges the reason of the full water protection of the air conditioner according to the result of the operation of the water pump with the preset load, and comprises the following steps: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, judging that the condensate water of the refrigeration operation drain pipe flows back. Full water protection can be removed when the water pump runs at full load, and the water protection does not appear in early-stage refrigeration, which indicates that the condensed water of the drain pipe flows back to the water pan due to the shutdown of the water pump in a shutdown state. The control unit controls the cooling operation of the air conditioner according to a result that the water pump operates at a first preset load, including: if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop; and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation.
For example, after the 200% load water pump continuously runs for 2min, whether water full protection still exists is judged, if the water full protection still exists, a fault of the water pump is reported, and the air conditioner is stopped; if the water full protection does not appear any more, the condensate water of the refrigeration operation drain pipe is judged to flow back, and the subsequent refrigeration operation can be performed according to the normal refrigeration.
The second detecting unit 130 is configured to detect a current indoor environment temperature and humidity if the time for the water full protection exceeds a preset time threshold; the control unit 120 is further configured to: and judging the reason for the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity.
If the second detection unit 130 detects that the current indoor environment temperature is greater than or equal to the preset temperature threshold and the indoor environment humidity is greater than or equal to the preset humidity threshold corresponding to the current indoor environment temperature, the compressor is controlled to operate at the preset frequency, and according to an operation result that the compressor operates at the preset frequency, the reason for water full protection of the air conditioner is judged and/or the refrigeration operation of the air conditioner is controlled.
The preset frequency specifically comprises the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature, namely the lower limit frequency, so that the operation of the air conditioner at a low refrigerating capacity is ensured, the refrigerating requirement of a user is ensured, and less condensed water is also ensured. According to the operation result of the compressor operating at the preset frequency, the reason for the occurrence of water full protection of the air conditioner is judged and/or the refrigeration operation of the air conditioner is controlled, and the method specifically includes: if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to run normally; and if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode. The second predetermined load is greater than the rated load of the water pump, for example, 200% of the rated load.
For example, if Tr is more than or equal to 27 ℃, whether the indoor humidity is larger than a preset humidity threshold corresponding to the current environment temperature is judged, if yes, the indoor humidity is judged to be larger, the condensate water generation speed is larger, the compressor operates for 10min (second preset time) according to the lower limit frequency, if the water full protection is still reported, the water pump is controlled to continuously operate for 5min (third preset time) at 200% load, normal refrigeration operation is carried out, and if the water full protection is not reported, the normal refrigeration operation is carried out.
If the second detection unit 130 detects that the current indoor environment temperature is less than the preset temperature threshold and the indoor environment humidity is less than the preset humidity threshold corresponding to the current indoor environment temperature, detecting the last refrigeration operation time; and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time. If the detected last refrigerating operation time reaches the preset operation time, controlling the water pump to operate at a third preset load and controlling the compressor to operate at a preset frequency; and if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigerating operation causes the water receiving tray to store water and/or controlling the air conditioner to normally refrigerate. The third predetermined load is greater than the rated load of the water pump, and preferably, the third predetermined load is less than the first predetermined load, for example, 150% of the rated load.
For example, if Tr is less than 27 ℃, whether the indoor humidity is less than a preset humidity threshold corresponding to the current environment temperature is judged, if yes, the indoor humidity is judged to be low, last starting operation time needs to be detected, whether last refrigerating operation leads to water storage of the water receiving tray is judged, if last refrigerating operation time is more than or equal to 6 hours, the water pump continuously operates for 3min (fourth preset time) at 150% load (third preset load), the compressor operates at a lower limit frequency, and if water full protection is not detected subsequently, it is judged that last refrigerating operation leads to water storage of the water receiving tray, and normal refrigerating operation is performed.
And if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch. Preferably, the internal unit adopts double-liquid level switch, and simultaneously, the liquid level switch and the water pan are slightly lower by 0.5mm relative to the normal unit position, so as to avoid the overflow of the condensed water and leave the space allowance. For example, the normal depth of the water receiving tray is about 45mm, the height of the liquid level switch from the bottom of the water receiving tray is about 40mm under the normal condition, and a margin of 0.5-2mm, for example, a height difference of 38mm, can be used for early warning of water full protection.
The determining, by the control unit 120, whether the output signals of the left and right liquid level switches are consistent with each other may include: if the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and then the air conditioner is controlled to normally refrigerate and operate, namely the condensed water of the inner machine is completely discharged, and then the normal refrigeration operation is carried out; and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and then controlling the air conditioner to normally refrigerate and run.
For example, if the last refrigerating operation time is less than 6 hours, the output signals of the left and right liquid level switches need to be detected, if the output signals are consistent, the compressor stops until the water is full, and the drainage of condensed water in the internal machine is ensured; if the output signals are not consistent, the air conditioner is judged to be installed out of level, a user is reminded, the compressor stops until the water is full, and normal refrigeration is started again.
Optionally, the output unit is configured to output the reason, for example, display the reason of the water full protection, such as display a code or a character, after determining the reason of the water full protection of the air conditioner.
The invention also provides a storage medium corresponding to the air conditioner control method, and a computer program is stored on the storage medium, and when the program is executed by a processor, the program realizes the steps of any one of the methods.
The invention also provides an air conditioner corresponding to the air conditioner control method, which comprises a processor, a memory and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps of any one of the methods when executing the program.
The invention also provides an air conditioner corresponding to the air conditioner control device, which comprises the air conditioner control device.
According to the scheme provided by the invention, the specific reason of the water full protection is intelligently judged by detecting the occurrence time of the water full protection and adjusting the operation of the water pump or detecting the indoor environment temperature, and the continuous refrigeration operation of the air conditioner can be controlled; according to the technical scheme of the invention, when the water full protection time exceeds the preset time threshold, the specific reason of the water full protection is accurately identified by adjusting the output of the water pump and/or the frequency of the compressor and/or judging the last refrigerating operation time based on the current indoor environment temperature and humidity, and the air conditioner is enabled to normally refrigerate and operate by adopting corresponding control logic.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (12)
1. An air conditioner control method, comprising:
in a refrigeration mode, after the air conditioner is subjected to water full protection, detecting whether the time for the water full protection exceeds a preset time threshold value;
if the time of the occurrence of the water full protection does not exceed a preset time threshold, controlling a water pump to operate at a first preset load, and judging the reason of the occurrence of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load;
and if the time of occurrence of the water full protection exceeds a preset time threshold, detecting the current indoor environment temperature and humidity so as to judge the reason of occurrence of the water full protection of the air conditioner and/or control the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity.
2. The method of claim 1,
controlling a cooling operation of the air conditioner according to a result of the water pump operating at a first preset load, including:
if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop;
if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation;
according to the result that the water pump operates at the preset load, the reason that the air conditioner is protected by water fullness is judged, and the method comprises the following steps:
if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault;
and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, judging that the condensate water of the refrigeration operation drain pipe flows back.
3. The method as claimed in claim 1 or 2, wherein the determining the reason for the occurrence of the water full protection of the air conditioner and/or controlling the cooling operation of the air conditioner based on the current indoor ambient temperature and humidity comprises:
if the current indoor environment temperature is detected to be greater than or equal to a preset temperature threshold value and the indoor environment humidity is detected to be greater than or equal to a preset humidity threshold value corresponding to the current indoor environment temperature, controlling the compressor to operate at a preset frequency; the preset frequency comprises: the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature;
judging the reason for water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency;
and/or the presence of a gas in the gas,
if the current indoor environment temperature is detected to be smaller than the preset temperature threshold and the indoor environment humidity is detected to be smaller than the preset humidity threshold corresponding to the current indoor environment temperature, the last refrigerating operation time is detected;
and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time.
4. The method of claim 3,
according to the operation result that the compressor operates at the preset frequency, the reason for the occurrence of water full protection of the air conditioner is judged and/or the refrigeration operation of the air conditioner is controlled, and the method comprises the following steps:
if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to run normally;
if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode;
and/or the presence of a gas in the gas,
judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time, and the method comprises the following steps:
if the detected last refrigeration running time reaches the preset running time, controlling the water pump to run at a third preset load and controlling the compressor to run at a preset frequency;
if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigeration operation causes the water receiving tray to store water and/or controlling the normal refrigeration operation of the air conditioner;
and if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch.
5. The method as claimed in claim 4, wherein judging the reason for the occurrence of the water full protection of the air conditioner and/or controlling the cooling operation of the air conditioner according to the consistency of the output signals of the left and right liquid level switches comprises:
if the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and the air conditioner is controlled to normally refrigerate and run;
and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and controlling the air conditioner to normally refrigerate and run.
6. An air conditioning control device, characterized by comprising:
the first detection unit is used for detecting whether the time of occurrence of water full protection exceeds a preset time threshold value or not after the air conditioner has the water full protection in a refrigeration mode;
the control unit is used for controlling the water pump to operate at a first preset load if the time of occurrence of the water full protection does not exceed a preset time threshold value, so as to judge the reason of occurrence of the water full protection of the air conditioner and/or control the refrigeration operation of the air conditioner according to the result of the operation of the water pump at the first preset load;
the second detection unit is used for detecting the current indoor environment temperature and humidity if the time of the water full protection exceeds a preset time threshold;
the control unit is further configured to: and judging the reason of the water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner based on the current indoor environment temperature and humidity detected by the second detection unit.
7. The apparatus of claim 6,
the control unit judges the reason of the full water protection of the air conditioner according to the result of the operation of the water pump with the preset load, and comprises the following steps:
if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, judging that the water pump has a fault;
if the air conditioner does not have water full protection after the water pump operates for a first preset time at a preset load, judging that the condensate water of the refrigeration operation drain pipe flows back;
the control unit controls the cooling operation of the air conditioner according to a result that the water pump operates at a first preset load, including:
if the air conditioner still has water full protection after the water pump operates for a first preset time at a preset load, controlling the air conditioner to stop;
and if the air conditioner does not have water full protection after the water pump operates for the first preset time at the preset load, controlling the air conditioner to continue normal refrigeration operation.
8. The apparatus according to claim 6 or 7, wherein the control unit determines the reason for the occurrence of the water full protection of the air conditioner and/or controls the cooling operation of the air conditioner based on the current indoor environment temperature and humidity detected by the second detection unit, and comprises:
if the current indoor environment temperature is detected to be greater than or equal to a preset temperature threshold value and the indoor environment humidity is detected to be greater than or equal to a preset humidity threshold value corresponding to the current indoor environment temperature, controlling the compressor to operate at a preset frequency; the preset frequency comprises: the lowest operation frequency allowed by the air conditioner at the current indoor environment temperature;
judging the reason for water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency;
and/or the presence of a gas in the gas,
if the current indoor environment temperature is detected to be smaller than the preset temperature threshold and the indoor environment humidity is detected to be smaller than the preset humidity threshold corresponding to the current indoor environment temperature, the last refrigerating operation time is detected;
and judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time.
9. The apparatus of claim 8,
the control unit judges the reason for water full protection of the air conditioner and/or controls the refrigeration operation of the air conditioner according to the operation result of the compressor operating at the preset frequency, and comprises the following steps:
if the compressor still has water full protection after running at the preset frequency for the second preset time, controlling the water pump to run at the second preset load for the third preset time, and then controlling the air conditioner to run normally;
if the compressor does not have water full protection after running at the preset frequency for the second preset time, controlling the air conditioner to normally run in a refrigerating mode;
and/or the presence of a gas in the gas,
judging the reason of the occurrence of water full protection of the air conditioner and/or controlling the refrigeration operation of the air conditioner according to the detected last refrigeration operation time, and the method comprises the following steps:
if the detected last refrigeration running time reaches the preset running time, controlling the water pump to run at a third preset load and controlling the compressor to run at a preset frequency;
if the water pump operates at a third preset load and the water full protection does not occur after the compressor operates at a preset frequency for a fourth preset time, judging that the last refrigeration operation causes the water receiving tray to store water and/or controlling the normal refrigeration operation of the air conditioner;
and if the detected last refrigerating operation time does not reach the preset operation time, judging the reason for the water full protection of the air conditioner and/or controlling the refrigerating operation of the air conditioner according to the consistency of output signals of the left liquid level switch and the right liquid level switch.
10. The device of claim 9, wherein the control unit determines the reason for the water full protection of the air conditioner and/or controls the cooling operation of the air conditioner according to whether the output signals of the left and right liquid level switches are consistent, and the control unit comprises:
if the output signals of the left liquid level switch and the right liquid level switch are consistent, the compressor is controlled to stop until the water full protection is finished, and the air conditioner is controlled to normally refrigerate and run;
and if the output signals of the left liquid level switch and the right liquid level switch are not consistent, judging that the air conditioner is not installed horizontally and/or controlling the compressor to stop until the water full protection is finished, and controlling the air conditioner to normally refrigerate and run.
11. A storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
12. An air conditioner comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor implementing the steps of the method of any one of claims 1 to 5 when executing the program, or comprising the air conditioning control apparatus of any one of claims 6 to 10.
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