CN110425699B - Air conditioning system, control method thereof, control device thereof, and computer-readable storage medium - Google Patents

Air conditioning system, control method thereof, control device thereof, and computer-readable storage medium Download PDF

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Publication number
CN110425699B
CN110425699B CN201910768137.4A CN201910768137A CN110425699B CN 110425699 B CN110425699 B CN 110425699B CN 201910768137 A CN201910768137 A CN 201910768137A CN 110425699 B CN110425699 B CN 110425699B
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Prior art keywords
water
indoor unit
indoor
water pump
condensed water
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CN110425699A (en
Inventor
王茹翰
许永锋
李宏伟
吴孔祥
王威
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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

Abstract

The invention provides a control method, a control device, an air conditioning system and a computer readable storage medium, wherein the air conditioning system comprises an indoor unit, the indoor unit comprises a water pan and a water pump matched with the water pan, and the water pump is used for discharging condensed water in the water pan, and the control method comprises the following steps: and after the power on of the indoor unit is detected, starting the water pump and continuing for a first time threshold. According to the invention, after the power of the indoor unit is connected, the water pump is controlled to operate for the first time threshold value to discharge the condensed water stored in the water receiving tray, so that the amount of the condensed water in the water receiving tray is controlled, and the amount of the condensed water in the water receiving tray is maintained within a preset safety range, thereby preventing the excessive amount of the condensed water in the water receiving tray, avoiding the phenomenon of dripping, and improving the use comfort and user experience of the product.

Description

Air conditioning system, control method thereof, control device thereof, and computer-readable storage medium
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to an air conditioning system, a control method and a control device thereof and a computer readable storage medium.
Background
At present, an indoor unit of an air conditioner serves as an indoor temperature and humidity adjusting device, due to the working principle and the liquefaction principle of the indoor unit, condensed water is generated inevitably during operation, the condensed water can directly drip from the indoor unit when the amount of the condensed water is large, the dripping phenomenon is generated, and the use comfort and the user experience of a product are influenced.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a control method suitable for an air conditioning system.
Another object of the present invention is to provide a control device suitable for an air conditioning system.
It is yet another object of the present invention to provide an air conditioning system.
It is still another object of the present invention to provide a computer-readable storage medium.
In order to achieve the above object, a technical solution of a first aspect of the present invention provides a control method, which is applied to an air conditioning system, where the air conditioning system includes an indoor unit, the indoor unit includes a water pan and a water pump matched with the water pan, and the water pump is used to drain condensed water in the water pan, and the control method includes: and after the indoor unit is detected to be powered on, starting the water pump and continuing for a first time threshold.
According to the control method provided by the technical scheme of the first aspect of the invention, after the power on of the indoor unit is detected, the water pump is controlled to operate for the first time threshold value to discharge the condensed water stored in the water pan, so that the amount of the condensed water in the water pan is controlled to be maintained within a preset safety range, the excessive amount of the condensed water in the water pan is prevented, the water dripping phenomenon is avoided, and the use comfort and the user experience of the product are improved.
Particularly, because during the shut down, there is the residual comdenstion water of indoor heat exchanger's fin to get into the possibility of water collector or the water that has other reasons to cause gets into the water collector, if do not reach the condition that the water pump was opened this moment, can lead to the water collector to deposit water, like this indoor set power-on operation back, if the change process that the internal temperature risees and reduces again appears in the indoor set because heating or other reasons, the comdenstion water in the water collector can have the risk of other structures condensation then dripping of evaporating back at the indoor set, the phenomenon that the indoor set drips appears promptly. Therefore, after the indoor unit is powered on, no matter what state the indoor unit is in, the water pump is firstly powered on to operate for the first time threshold value, condensed water accumulated in the water pan during the shutdown can be discharged, the amount of the condensed water in the water pan is maintained within a preset safety range, the situation that the indoor unit drips due to water stored in the water pan during the shutdown can be prevented from occurring, and the use comfort and the user experience of products are improved.
In addition, the control method in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the control method further includes: and controlling the water pump to maintain the starting state when the indoor unit is detected to run in a cooling mode and/or a dehumidifying mode.
When the indoor unit operates in the refrigeration mode and/or the dehumidification mode, more condensed water is generated by the indoor heat exchanger (namely the evaporator), and the amount of the condensed water in the water pan can be increased, so that when the indoor unit is detected to operate in the refrigeration mode and/or the dehumidification mode, the water pump is controlled to be kept in an open state to continuously discharge the condensed water in the water pan, the condensed water in the water pan is prevented from being accumulated too much, and the amount of the condensed water in the water pan is kept in a preset safety range.
In the above technical solution, the control method further includes: and after a shutdown instruction is received, controlling the water pump to continuously operate for a second time threshold and then closing the water pump.
In the process of indoor machine cooling operation and/or dehumidifying operation, when a shutdown instruction is received, the temperature of the indoor heat exchanger may be kept at the temperature of an operating state, so that after shutdown, the indoor heat exchanger may continue to produce condensed water, which increases the amount of the condensed water in the water pan, and thus, the risk that the condensed water in the water pan condenses and then drips down in other structures of the indoor machine after evaporating when the indoor machine operates again, namely, the phenomenon of dripping water of the indoor machine occurs. Therefore, when the shutdown instruction is received, the water pump is controlled to continuously operate for the second time threshold value and then is closed, and the condensed water in the water pan can be continuously discharged, so that excessive condensed water accumulation in the water pan caused by continuous generation of the condensed water by the indoor heat exchanger (namely the evaporator) after the indoor unit is shutdown is prevented, and the amount of the condensed water in the water pan is kept within the preset safety range.
In the above technical solution, the number of the indoor units is plural, and the control method further includes: detecting that the current indoor unit is shut down under a set working condition, and judging whether all other indoor units are in a shut-down state; judging that all the other indoor units are in a shutdown state, and controlling a water pump of the current indoor unit to continuously operate for a second time threshold and then closing the water pump; and judging whether all the other indoor units are in a shutdown state, and controlling the current water pump of the indoor unit to continuously maintain the startup state.
For the case that the number of the indoor units is multiple, for example, the air conditioning system is a multi-split air conditioner, the states and the operation modes of the multiple indoor units may be different, for example: some indoor units are in an operating state, and some indoor units are in a shutdown state; some indoor units are in cooling operation, and some indoor units are in heating operation. Because a plurality of indoor units share the outdoor unit, when the current indoor unit is shut down under a set working condition and other indoor units are not in a shutdown state, the compressor may still be in a working state; in addition, when the current indoor unit is stopped when reaching a set working condition (for example, when the current indoor unit is stopped when reaching a set temperature), the operation is restarted when reaching a non-set working condition after a period of time, and therefore the indoor unit is stopped only intermittently.
Therefore, under the condition that the current indoor unit is shut down under the set working condition and other indoor units are not in the shutdown state (namely the current indoor unit is not the last indoor unit which is shut down), the refrigerant discharged by the compressor can still enter the indoor heat exchanger of the current indoor unit, so that the current indoor unit is still in the current operation mode, the water pump is continuously kept in the open state, and the continuous increase of the condensed water in the water pan is prevented. And for the condition that the current indoor unit is shut down under the set working condition and all other indoor units are in the shutdown state, the compressor is also in the stop state at the moment, and the current indoor unit is equivalent to the indoor unit which is in the shutdown state and is finally shut down, so that the water pump is shut down after delaying the second time threshold at the moment, and the condensate water amount in the water receiving tray can be ensured to be maintained in the preset safety range.
In the above technical solution, the control method further includes: detecting that the indoor unit operates in a heating mode and/or an air supply mode, and turning off the water pump; judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value or not; judging that the amount of the condensed water is smaller than a set threshold value, and controlling the water pump to maintain a closed state; and judging that the condensed water amount is greater than or equal to a set threshold value, starting the water pump, and continuing for a third time threshold value.
When the indoor unit operates in a heating mode and/or an air supply mode, the temperature of the indoor heat exchanger is high, the probability of generating condensed water is extremely low, and therefore the water pump is turned off, electric energy is saved, operation noise is reduced, and dry pumping of the water pump can be prevented. In the operation process, the amount of condensed water in the water receiving tray is detected in real time, whether the amount of the condensed water is smaller than a set threshold value or not is judged, if the amount of the condensed water is smaller than the set threshold value, the amount of the condensed water in the water receiving tray is less, and the phenomenon of dripping is avoided, so that the water pump is kept in a closed state; if the amount of the condensed water is larger than or equal to the set threshold, the fact that the amount of the condensed water in the water receiving tray is more indicates that the risk of dripping exists, so that the water pump is started, the third time threshold of the power-on operation is set, the condensed water in the water receiving tray is discharged in a sufficient amount, the amount of the condensed water in the water receiving tray is maintained in the preset safety range, and the phenomenon of dripping is prevented.
In the above technical solution, after the water pump is started and the third duration threshold continues, the method further includes: judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value or not; judging that the amount of the condensed water is smaller than a set threshold value, and closing the water pump; and judging that the amount of the condensed water is greater than or equal to a set threshold value, and sending an alarm signal.
After the water pump operates for the third time threshold, the amount of the condensed water in the water receiving tray should be lower than the set threshold theoretically, and if the judgment result shows that the amount of the condensed water in the water receiving tray is still larger than or equal to the set threshold, the system component is indicated to be possibly broken down, so that an alarm signal is sent to prompt a user, and the user can conveniently and timely overhaul; if the judgment result shows that the amount of the condensed water is less than the set threshold, the water-receiving tray can not drip the condensed water, and the water pump can be normally closed.
In any of the above technical solutions, the indoor unit includes an indoor fan and an air guide strip located at an air outlet of the indoor unit; the control method further comprises the following steps: receiving a shutdown signal or detecting the fault shutdown of the indoor unit; and controlling the indoor fan to reduce to a preset rotating speed, continuously operating a fourth time length threshold value, controlling the air guide strips to reduce to a preset opening degree, and continuously operating a fifth time length threshold value.
In the prior art, when the indoor unit is stopped, the indoor fan stops rotating, so that the indoor heat exchanger may be kept at the operating temperature and slowly rises or falls within a period of time when the indoor unit is stopped. Therefore, the risk of generating condensed water still exists after the indoor unit is refrigerated and stopped, and the condensed water in the water pan is increased; after the indoor unit is heated and stopped, if water exists in the water pan, the indoor heat exchanger with high temperature can raise the temperature inside the indoor unit, so that condensed water in the water pan is evaporated and condensed at other structures (such as metal plates) of the indoor unit, and further a water dripping risk is generated.
Therefore, after the indoor unit receives a stop signal or reports a fault and stops the machine, the indoor fan does not stop running immediately, but continues running at the preset rotating speed and continues running for the fourth time threshold, so that the indoor heat exchanger can be prevented from continuing to be heated or cooled, and the risk of dripping caused by the fact that the indoor heat exchanger continues to produce condensed water after refrigeration and stop or the condensed water evaporates and condenses after heating and stop is prevented. Meanwhile, the air guide strips keep the preset opening degree and last for the fifth time threshold value, so that the indoor unit can be enabled to normally circulate with the external environment air, and the indoor heat exchanger can be enabled to reach the room temperature quickly.
In the above technical scheme, controlling the indoor fan to continue to operate at the preset rotation speed for the fourth time threshold specifically comprises: controlling the indoor fan to reduce to the preset rotating speed and continue for the fourth time threshold; and/or controlling the air guide strips to keep a preset opening degree and last for a fifth time threshold, specifically: and controlling the air guide strips to be reduced to the preset opening degree and continuing for the fifth time length threshold value.
After the indoor unit is shut down, the indoor fan operates at a reduced speed, the opening degree of the air guide strips is reduced, operation noise can be reduced, exhaust air flow can be prevented from blowing towards a user directly, and therefore the use comfort level of a product is improved.
In the above technical scheme, the preset rotation speed is the minimum rotation speed of the indoor fan; the preset opening is the minimum opening of the air guide strips; the fourth duration threshold is less than the fifth duration threshold.
The preset rotating speed is the minimum rotating speed of the indoor fan, so that the running noise can be further reduced.
The preset opening is the minimum opening of the air guide strip, so that the risk of blowing air to a user can be further reduced, and the use experience of the user is further improved.
The fourth time threshold is smaller than the fifth time threshold, so that the indoor unit can flow with the outside air, and the indoor heat exchanger can reach the room temperature as soon as possible.
In any of the above technical solutions, the indoor unit includes an indoor fan and an air guide strip located at an air outlet of the indoor unit; the control method further comprises the following steps: and controlling the indoor fan and the air guide strip to maintain the current running state when the condensed water amount in the water receiving tray is detected to be larger than or equal to a set threshold value.
When the amount of the condensed water in the water receiving tray is larger than or equal to the set threshold value, the fact that the amount of the condensed water in the water receiving tray is too much indicates that a large dripping risk exists, and at the moment, the indoor fan and the air guide strip are controlled to maintain the current running state, so that the air flow in the indoor unit can be promoted, and new condensed water is prevented from being generated.
An aspect of a second aspect of the present invention provides a control device for an air conditioning system, comprising a processor configured to implement the steps of the control method according to any one of the aspects of the first aspect when executing a computer program stored in a memory.
An aspect of the third aspect of the present invention provides an air conditioning system including the control device according to the second aspect.
An aspect of the fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method according to any one of the aspects of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart of a control method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method according to an embodiment of the present invention;
FIG. 3 is a partial flow diagram of a control method according to an embodiment of the invention;
FIG. 4 is a partial flow diagram of a control method according to an embodiment of the invention;
fig. 5 is a schematic block diagram of a control device according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
An air conditioning system, a control method thereof, a control apparatus thereof, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 5.
Example one
As shown in fig. 1, a control method provided in an embodiment of a first aspect of the present invention is applicable to an air conditioning system, where the air conditioning system includes an indoor unit, the indoor unit includes a water pan and a water pump matched with the water pan, and the water pump is used to discharge condensed water in the water pan, and the control method includes:
step S1042: and after the power on of the indoor unit is detected, starting the water pump and continuing for a first time threshold.
In the control method provided by the embodiment of the first aspect of the invention, after the power on of the indoor unit is detected, the water pump is controlled to operate for the first time threshold value to discharge the condensed water stored in the water pan, so that the amount of the condensed water in the water pan is controlled to be maintained within the preset safety range, the excessive amount of the condensed water in the water pan is prevented, the water dripping phenomenon is avoided, and the use comfort and the user experience of the product are improved.
The amount of condensed water in the water pan can be the weight of the condensed water, and the amount of the condensed water is detected by a weighing sensor; the level of the condensed water may be detected by a level sensor or a level switch.
Particularly, because during the shut down, there is the residual comdenstion water of indoor heat exchanger's fin to get into the possibility of water collector or the water that has other reasons to cause gets into the water collector, if do not reach the condition that the water pump was opened this moment, can lead to the water collector to deposit water, like this indoor set power-on operation back, if the change process that the internal temperature risees and reduces again appears in the indoor set because heating or other reasons, the comdenstion water in the water collector can have the risk of other structures condensation then dripping of evaporating back at the indoor set, the phenomenon that the indoor set drips appears promptly.
Therefore, after the indoor unit is powered on, no matter what state the indoor unit is in, the water pump is firstly powered on to operate for the first time threshold value, condensed water accumulated in the water pan during the shutdown can be discharged, the amount of the condensed water in the water pan is maintained within a preset safety range, the situation that the indoor unit drips due to water stored in the water pan during the shutdown can be prevented from occurring, and the use comfort and the user experience of products are improved.
The specific size of the first duration threshold is not limited, and may be, for example, within 1 minute (e.g., 15 seconds, 30 seconds, etc.), 1 minute to 5 minutes, or other durations.
Example two
The difference from the first embodiment is that: on the basis of the first embodiment, as shown in fig. 2, the control method further includes:
step S1044: and controlling the water pump to maintain the opening state when the indoor unit is detected to run in a cooling mode and/or a dehumidifying mode.
When the indoor unit operates in the refrigeration mode and/or the dehumidification mode, more condensed water is generated by the indoor heat exchanger (namely the evaporator), and the amount of the condensed water in the water pan can be increased, so that when the indoor unit is detected to operate in the refrigeration mode and/or the dehumidification mode, the water pump is controlled to be kept in an open state to continuously discharge the condensed water in the water pan, the condensed water in the water pan is prevented from being accumulated too much, and the amount of the condensed water in the water pan is kept in a preset safety range.
Further, as shown in fig. 2, the control method further includes:
step S1046: and after a shutdown instruction is received, controlling the water pump to continuously operate for a second time threshold and then closing the water pump.
In the process of indoor machine cooling operation and/or dehumidifying operation, when a shutdown instruction is received, the temperature of the indoor heat exchanger may be kept at the temperature of an operating state, so that after shutdown, the indoor heat exchanger may continue to produce condensed water, which increases the amount of the condensed water in the water pan, and thus, the risk that the condensed water in the water pan condenses and then drips down in other structures of the indoor machine after evaporating when the indoor machine operates again, namely, the phenomenon of dripping water of the indoor machine occurs.
Therefore, when the shutdown instruction is received, the water pump is controlled to continuously operate for the second time threshold value and then is closed, and the condensed water in the water pan can be continuously discharged, so that excessive condensed water accumulation in the water pan caused by continuous generation of the condensed water by the indoor heat exchanger (namely the evaporator) after the indoor unit is shutdown is prevented, and the amount of the condensed water in the water pan is kept within the preset safety range.
The specific size of the second duration threshold is not limited, and may be, for example, within 1 minute (e.g., 15 seconds, 30 seconds, etc.), 1 minute to 5 minutes, or other durations.
Further, the number of the indoor units is multiple, as shown in fig. 2, the control method further includes:
step S1048: detecting that the current indoor unit is shut down under a set working condition, judging whether other indoor units are all in a shutdown state, if so, executing a step S1050, and if not, executing a step S1052;
step S1050: controlling a water pump of the current indoor unit to continuously operate for a second time threshold and then closing the water pump;
step S1052: and controlling the water pump of the current indoor unit to continuously maintain the opening state.
For the case that the number of the indoor units is multiple, for example, the air conditioning system is a multi-split air conditioner, the states and the operation modes of the multiple indoor units may be different, for example: some indoor units are in an operating state, and some indoor units are in a shutdown state; some indoor units are in cooling operation, and some indoor units are in heating operation. Because a plurality of indoor units share the outdoor unit, when the current indoor unit is shut down under a set working condition and other indoor units are not in a shutdown state, the compressor may still be in a working state; in addition, when the current indoor unit is stopped when reaching a set working condition (for example, when the current indoor unit is stopped when reaching a set temperature), the operation is restarted when reaching a non-set working condition after a period of time, and therefore the indoor unit is stopped only intermittently.
Therefore, under the condition that the current indoor unit is shut down under the set working condition and other indoor units are not in the shutdown state (namely the current indoor unit is not the last indoor unit which is shut down), the refrigerant discharged by the compressor can still enter the indoor heat exchanger of the current indoor unit, so that the current indoor unit is still in the current operation mode, the water pump is continuously kept in the open state, and the continuous increase of the condensed water in the water pan is prevented. And for the condition that the current indoor unit is shut down under the set working condition and all other indoor units are in the shutdown state, the compressor is also in the stop state at the moment, and the current indoor unit is equivalent to the indoor unit which is in the shutdown state and is finally shut down, so that the water pump is shut down after delaying the second time threshold at the moment, and the condensate water amount in the water receiving tray can be ensured to be maintained in the preset safety range.
EXAMPLE III
The difference from the first embodiment or the second embodiment is that: on the basis of the first embodiment or the second embodiment, as shown in fig. 2, the control method further includes:
step S1054: detecting that the indoor unit runs in a heating mode and/or an air supply mode, and turning off the water pump;
step S1056: judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value, if so, executing step S1058, and if not, executing step S1060;
step S1058: controlling the water pump to maintain a closed state;
step S1060: and starting the water pump and continuing for a third time length threshold value.
When the indoor unit operates in a heating mode and/or an air supply mode, the temperature of the indoor heat exchanger is high, the probability of generating condensed water is extremely low, and therefore the water pump is turned off, electric energy is saved, operation noise is reduced, and dry pumping of the water pump can be prevented. In the operation process, the amount of condensed water in the water receiving tray is detected in real time, whether the amount of the condensed water is smaller than a set threshold value or not is judged, if the amount of the condensed water is smaller than the set threshold value, the amount of the condensed water in the water receiving tray is less, and the phenomenon of dripping is avoided, so that the water pump is kept in a closed state; if the amount of the condensed water is larger than or equal to the set threshold, the fact that the amount of the condensed water in the water receiving tray is more indicates that the risk of dripping exists, so that the water pump is started, the third time threshold of the power-on operation is set, the condensed water in the water receiving tray is discharged in a sufficient amount, the amount of the condensed water in the water receiving tray is maintained in the preset safety range, and the phenomenon of dripping is prevented.
And in the process of the third time length threshold value of the water pump powered-on operation, no matter whether the amount of the condensed water in the water receiving tray is lower than the set threshold value, the water pump powered-on operation is ensured to be fully performed for the third time length threshold value, so that the condensed water can be reduced to be within the preset safety range.
The water level switch can be used for detecting the amount of condensed water in the water pan, and is switched off when the amount of the condensed water reaches or exceeds a set value of the water level switch; when the amount of the condensed water is lower than the set value of the water level switch, the water level switch is closed.
The specific size of the third duration threshold is not limited, and may be, for example, within 1 minute (e.g., 15 seconds, 30 seconds, etc.), 1 minute to 5 minutes, or other durations.
Further, as shown in fig. 2, after step S1060, the method further includes:
step S1062: judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value again, if so, executing a step S1064, and if not, executing a step S1066;
step S1064: the water pump is shut down;
step S1066: and sending out an alarm signal.
After the water pump operates for the third time threshold, the amount of the condensed water in the water receiving tray should be lower than the set threshold theoretically, and if the judgment result shows that the amount of the condensed water in the water receiving tray is still larger than or equal to the set threshold, the system component is indicated to be possibly broken down, so that an alarm signal is sent to prompt a user, and the user can conveniently and timely overhaul; if the judgment result shows that the amount of the condensed water is less than the set threshold, the water-receiving tray can not drip the condensed water, and the water pump can be normally closed.
Wherein, the alarm signal can be sent out through a water level switch, and can also be sent out through other alarm devices (such as a buzzer, a prompt lamp and the like).
Example four
The indoor unit comprises an indoor fan and an air guide strip positioned at an air outlet of the indoor unit; the control method comprises the following steps:
receiving a shutdown signal;
and controlling the indoor fan to reduce to a preset rotating speed, continuously operating the fourth time length threshold value, controlling the air guide strips to reduce to a preset opening degree, and continuously operating the fifth time length threshold value.
EXAMPLE five
The difference from the fourth embodiment is that: the contents of the fourth embodiment are combined with the contents of any one of the first to third embodiments.
EXAMPLE six
The indoor unit comprises an indoor fan and an air guide strip positioned at an air outlet of the indoor unit; the control method comprises the following steps:
detecting the failure and the shutdown of the indoor unit;
and controlling the indoor fan to reduce to a preset rotating speed, continuously operating the fourth time length threshold value, controlling the air guide strips to reduce to a preset opening degree, and continuously operating the fifth time length threshold value.
EXAMPLE seven
The difference from the sixth embodiment is that: the contents of the sixth embodiment are combined with the contents of any one of the first to fifth embodiments.
In the prior art, when the indoor unit is stopped, the indoor fan stops rotating, so that the indoor heat exchanger may be kept at the operating temperature and slowly rises or falls within a period of time when the indoor unit is stopped. Therefore, the risk of generating condensed water still exists after the indoor unit is refrigerated and stopped, and the condensed water in the water pan is increased; after the indoor unit is heated and stopped, if water exists in the water pan, the indoor heat exchanger with high temperature can raise the temperature inside the indoor unit, so that condensed water in the water pan is evaporated and condensed at other structures (such as metal plates) of the indoor unit, and further a water dripping risk is generated.
Therefore, for the fourth to seventh embodiments, after the indoor unit receives the shutdown signal (the shutdown may be performed under the set working condition, or the shutdown is performed after receiving the shutdown instruction) or the shutdown is reported, the indoor fan does not immediately stop operating, but continuously operates at the preset rotation speed, and continuously operates the fourth time threshold, so that the indoor heat exchanger is prevented from continuously increasing the temperature or continuously decreasing the temperature, and the risk of dripping caused by the fact that the indoor heat exchanger continuously generates condensed water after the refrigeration shutdown or the condensed water after the heating shutdown evaporates is prevented. Meanwhile, the air guide strips keep the preset opening degree and last for the fifth time threshold value, so that the indoor unit can be enabled to normally circulate with the external environment air, and the indoor heat exchanger can be enabled to reach the room temperature quickly.
Wherein, the fourth time length threshold value of fan with the rotational speed that predetermines in the control room continues to operate specifically is: and controlling the indoor fan to reduce to a preset rotating speed and continue for a fourth time threshold.
Controlling the air guide strip to keep a preset opening degree and last for a fifth time threshold, specifically: and controlling the air guide strips to reduce to a preset opening degree and continuing for a fifth time threshold.
After the indoor unit is shut down, the indoor fan operates at a reduced speed, the opening degree of the air guide strips is reduced, operation noise can be reduced, exhaust air flow can be prevented from blowing towards a user directly, and therefore the use comfort level of a product is improved.
Optionally, the preset rotation speed is a minimum rotation speed of the indoor fan.
Optionally, the preset opening is a minimum opening of the air guide strip.
Optionally, the fourth duration threshold is less than the fifth duration threshold.
The preset rotating speed is the minimum rotating speed of the indoor fan, so that the running noise can be further reduced. Of course, the preset rotation speed can also be the current rotation speed of the fan in the front chamber when the indoor unit is stopped or other rotation speeds.
The preset opening is the minimum opening of the air guide strip, so that the risk of blowing air to a user can be further reduced, and the use experience of the user is further improved. Of course, the preset opening degree may also be the current opening degree or other opening degrees of the air guide bars before the indoor unit is stopped.
The fourth time threshold is smaller than the fifth time threshold, so that the indoor unit can flow with the outside air, and the indoor heat exchanger can reach the room temperature as soon as possible.
The specific size of the fourth duration threshold and the fifth duration threshold is not limited, and may be, for example, within 1 minute (e.g., 15 seconds, 30 seconds, etc.), 1 minute to 5 minutes, or other durations.
Example eight
The control component comprises an indoor fan and an air guide strip positioned at an air outlet of the indoor unit; the control method comprises the following steps:
and controlling the indoor fan and the air guide strip to maintain the current running state when detecting that the amount of the condensed water in the water receiving disc is larger than or equal to a set threshold value.
Example nine
The difference from example eight is that: the contents of the eighth embodiment are combined with any one of the first to seventh embodiments.
For the eighth embodiment and the ninth embodiment, when the amount of the condensed water in the water receiving tray is greater than or equal to the set threshold, it indicates that the amount of the condensed water in the water receiving tray is too much, and a large risk of dripping exists, and at this time, the indoor fan and the air guide strip are controlled to maintain the current operation state, so that the air flow in the indoor unit can be promoted, and new condensed water is prevented from being generated.
The control method provided in the present application is described in detail below with reference to a specific embodiment, and compared with the prior art.
The indoor unit of the air conditioner serves as an indoor temperature and humidity adjusting device, due to the working principle and the liquefaction principle of the indoor unit, condensed water is inevitably generated during operation of the indoor unit, the condensed water generated by the indoor unit needs to be treated in a reasonable mode, and the condensed water is prevented from directly dripping from the indoor unit, so that the use comfort and the user experience of a user are influenced.
The existing condensed water treatment mode is as follows: the indoor heat exchanger is arranged on the water pan, condensed water produced on the indoor heat exchanger directly flows into the water pan, the water pan is provided with a water pump, and the condensed water in the water pan is discharged out of the indoor unit through a connected drainage pipeline by the water pump. If more water is stored in the water pan of the indoor unit, condensed water can be changed into vapor in the change process that the temperature in the indoor unit is increased and then reduced due to heating and other reasons, then the vapor is condensed on other structures of the indoor unit to generate condensed water, and the condensed water directly drips from the indoor unit, so that the on-off of the water pump needs to be reasonably controlled, the condensed water on the water pan is in a safe range under any condition, and the condition that the indoor unit drips due to the condition cannot occur.
The existing fan control mode is characterized in that the indoor unit is shut down, and the fan stops rotating, so that a risk exists: the indoor heat exchanger may also maintain the temperature of the operation state, slowly rising or falling, when the indoor unit is just stopped. Therefore, during refrigeration, condensed water is generated after the refrigerator is shut down, and the risk of water dripping is caused; after the machine is shut down in heating, if there is water in the water collector, the heat exchanger of high temperature can make the inside temperature of indoor set rise, and the moisture evaporation is in other panel beating departments condensation of machine including, has the risk of dripping.
Therefore, the invention aims to provide a water pump of an indoor unit of an air conditioner, a fan of the indoor unit and a control method of an air guide strip, which can ensure that condensed water of a water pan of the indoor unit is kept in a safe range under various conditions and the risk of dripping water of the indoor unit is avoided.
Wherein, the water pump control key point lies in:
after the indoor unit is powered on (namely, the power supply is switched on), no matter what state the indoor unit is in, the water pump is powered on for an operating time A (namely, a first time length threshold).
And in the refrigeration running state, the water pump of the indoor unit is normally opened, and after the refrigeration receives a stop signal, the water pump is closed after the running time B (namely the second duration threshold) continues.
And after the water level switch of the indoor unit is disconnected, judging whether the water level switch is closed or not after the water pump running time C (namely a third time threshold), and if the water level switch is still disconnected, reporting a water level alarm. And in the time of running less than the full C, the full C time is run regardless of whether the water level switch is closed or other conditions.
The fan and the wind guide strip control key points are as follows:
after the indoor unit receives the stop signal, the fan of the indoor unit is delayed to be shut down, and the air guide strips keep the minimum opening degree in the period, so that people are prevented from being blown, and the comfort is prevented from being influenced.
Specifically, the control flow of the water pump is shown in fig. 3, and includes the following steps:
step S110: and powering on the indoor unit. That is, the indoor unit is powered on.
Step S112: and the water pump is started to operate for A time. That is, after the indoor unit is powered on, the water pump is immediately turned on and operates for time a.
Step S114: the indoor unit is turned on to have an operation mode, and when cooling or dehumidifying, step S116 is executed, and when heating or blowing, step S124 is executed. That is, the indoor unit is turned on and operates in a mode designated by the user.
Step S116: the water pump is normally opened and always operated, and when the water pump is stopped at the set temperature, step S118 is executed, and when the water pump is manually stopped, step S120 is executed.
Step S118: and judging whether the internal machine is the last internal machine to be turned off, if so, executing the step S120, and if not, executing the step S122.
Step S120: the water pump is turned off for a delay time B.
Step S122: the water pump is continuously opened and always runs.
Step S124: and (4) judging whether the water level switch is opened or closed when the water pump is not opened, executing step (S126) if the water level switch is closed, and executing step (S128) if the water level switch is opened.
Step S126: the water pump is not started.
Step S128: the water pump is started to run for the full C time, and the water pump is not stopped because the water level switch is closed.
Step S130: after the operation is performed for the time C, it is determined whether the water level switch is turned on or off again, if the water level switch is turned off, step S132 is performed, and if the water level switch is turned on, step S134 is performed.
Step S132: reporting the fault of the water level switch.
Step S134: the water pump stops running.
The control principle is as follows:
after the indoor unit is electrified, no matter what state the indoor unit is in, the water pump is electrified for an operating time A, and the control function is as follows: prevent because the water that the evaporimeter fin remained the comdenstion water or other reasons lead to gets into the water collector during the shut down, and not reach the condition that the water pump was opened, lead to the water collector to deposit water, indoor set drip appears because the reason of evaporation condensation in the remaining comdenstion water in the water collector appears.
Secondly, under the refrigeration and dehumidification running state, the indoor unit water pump is normally open, after the refrigeration receives the shutdown signal, the water pump is closed after continuing the running time B, and the control has the following functions: the evaporator is prevented from being in a low-temperature state in a short time after the shutdown, or condensed water is generated and enters the water pan to cause water to be stored in the water pan, and the water of the indoor unit is prevented from dripping due to the reason of evaporation and condensation of the condensed water remained in the water pan.
And thirdly, after the water level switch of the indoor unit is disconnected, judging whether the water level switch is closed or not after the water pump runs for C time and C time, and if the water level switch is still disconnected, reporting the water level to alarm. In the time of running less than C, whether the water level switch is closed or not or other conditions, the time of running full C is required, and the control functions as follows: the water level switch gives an alarm to indicate that the water quantity in the water receiving tray reaches a certain value, and the water pump needs to be started to drain water. Only the operation C time under this water yield state, just can ensure that the water collector internal water has reduced to the safety range, in being short in C time, it is the possibility that the water yield does not reduce to below the safe water level, so even water level switch removes the warning in C time, in order to continue to operate full C time, guarantee can not have the condition such as water level switch erroneous judgement, lead to the water collector internal water yield not to fall the risk that just stops the drainage of safe water yield water pump, and then lead to the water collector to deposit water, indoor set drip appears owing to the reason of evaporation condensation in the residual comdenstion water appearing the water collector.
Therefore, the invention provides a more reliable water pump control method, which ensures that condensed water on the water pan of the indoor unit is in a safe range, and avoids the phenomenon of water dripping of the indoor unit caused by water stored in the water pan.
The control flow of the fan and the air guide strips is shown in fig. 4, and comprises the following steps:
step S140: the indoor unit operates normally, and when the stop signal is received, step S142 is executed, when the trouble is reported, step S144 is executed, and when the water level switch is turned off, step S146 is executed.
Step S142: and the fan is closed after rotating to low wind and continuously operating for A time, and the air guide strips are closed after rotating to the minimum angle and continuously operating for B time.
Step S144: and the fan is turned to a low wind speed and is closed after continuously running for A time, and the air guide strip is turned to a minimum angle and is closed after continuously running for B time.
Step S146: the fan and the air guide strip keep the current running state.
The control principle is as follows:
in the refrigerating operation, the indoor unit receives a stop signal, the indoor fan rotates to low wind, the indoor fan stops after the operation for A time, the air guide strip is closed after the air guide strip keeps the minimum opening degree for B time, and B is greater than A.
And secondly, in the heating operation, the indoor unit receives a stop signal, the indoor fan rotates to low wind, the indoor fan stops after the operation for A time, the air guide strip is closed after the air guide strip keeps the minimum opening degree for B time, and B is greater than A.
And thirdly, the indoor unit is shut down when a fault is reported, the indoor fan rotates to low wind, the indoor fan stops after running for A time, the air guide strip is closed after keeping the minimum opening degree for B time, and B is greater than A.
And fourthly, in any mode, the water level switch is switched off, and the fan and the air guide strip keep the current state and continue to operate.
Therefore, the invention provides a more reliable control method for the fan and the air guide strip of the indoor unit, which ensures that the heat exchanger of the indoor unit cannot generate condensed water after the indoor unit is shut down and reduces the risk of water dripping of the indoor unit.
As shown in fig. 5, the control device 20 of an air conditioning system according to an embodiment of the second aspect of the present invention includes a processor 202, where the processor 202 is configured to implement the steps of the control method according to any one of the embodiments of the first aspect when executing a computer program stored in a memory 204, so that all the advantages of any one of the embodiments described above are achieved, and are not described herein again.
In the above embodiment, the air conditioning system includes an indoor unit, the indoor unit includes a water pan and a control component for controlling the amount of condensed water in the water pan, and the processor 202 is specifically configured to: controlling the indoor unit to be powered on; and controlling the control assembly according to the running state of the indoor unit to maintain the amount of the condensed water in the water pan within a preset safety range.
The control assembly is reasonably regulated and controlled according to the running state of the indoor unit, so that the amount of condensation water in the water pan is controlled, the amount of condensation water in the water pan is maintained within a preset safety range, excessive condensation water in the water pan is prevented, the phenomenon of water dripping is avoided, and the use comfort and the user experience of products are improved.
In the above embodiment, the control assembly includes a water pump engaged with the water-receiving tray, the water pump being configured to drain condensed water from the water-receiving tray; the processor 202 is specifically configured to: and after the indoor unit is detected to be electrified, starting the water pump, and continuing the first time threshold.
Because during shutting down, the remaining comdenstion water of fin that has indoor heat exchanger gets into the possibility that the water collector or the water that has other reasons to cause got into the water collector, if do not reach the condition that the water pump was opened this moment, can lead to the water collector to deposit water, like this indoor set electricity operation back, if the change process that the internal temperature risees and reduces again appears in the indoor set because heating or other reasons, the comdenstion water in the water collector can have the risk of other structures condensation then dripping of evaporation back at the indoor set, the phenomenon that the indoor set drips appears promptly. Therefore, after the indoor unit is powered on, no matter what state the indoor unit is in, the water pump is firstly powered on to operate for the first time threshold value, condensed water accumulated in the water pan during the shutdown can be discharged, the amount of the condensed water in the water pan is maintained within a preset safety range, the situation that the indoor unit drips due to water stored in the water pan during the shutdown can be prevented from occurring, and the use comfort and the user experience of products are improved.
In the foregoing embodiment, the processor 202 is specifically further configured to: and controlling the water pump to maintain the opening state when the indoor unit is detected to run in a cooling mode and/or a dehumidifying mode.
When the indoor unit operates in the refrigeration mode and/or the dehumidification mode, more condensed water is generated by the indoor heat exchanger (namely the evaporator), and the amount of the condensed water in the water pan can be increased, so that when the indoor unit is detected to operate in the refrigeration mode and/or the dehumidification mode, the water pump is controlled to be kept in an open state to continuously discharge the condensed water in the water pan, the condensed water in the water pan is prevented from being accumulated too much, and the amount of the condensed water in the water pan is kept in a preset safety range.
In the foregoing embodiment, the processor 202 is specifically further configured to: and after a shutdown instruction is received, controlling the water pump to continuously operate for a second time threshold and then closing the water pump.
In the process of indoor machine cooling operation and/or dehumidifying operation, when a shutdown instruction is received, the temperature of the indoor heat exchanger may be kept at the temperature of an operating state, so that after shutdown, the indoor heat exchanger may continue to produce condensed water, which increases the amount of the condensed water in the water pan, and thus, the risk that the condensed water in the water pan condenses and then drips down in other structures of the indoor machine after evaporating when the indoor machine operates again, namely, the phenomenon of dripping water of the indoor machine occurs. Therefore, when the shutdown instruction is received, the water pump is controlled to continuously operate for the second time threshold value and then is closed, and the condensed water in the water pan can be continuously discharged, so that excessive condensed water accumulation in the water pan caused by continuous generation of the condensed water by the indoor heat exchanger (namely the evaporator) after the indoor unit is shutdown is prevented, and the amount of the condensed water in the water pan is kept within the preset safety range.
In the above embodiment, the number of the indoor units is multiple, the control component is controlled according to the operation state of the indoor units, and the processor 202 is specifically further configured to: detecting that the current indoor unit is shut down under a set working condition, and judging whether other indoor units are all in a shut-down state or not; judging that all other indoor units are in a shutdown state, and controlling a water pump of the current indoor unit to continuously operate for a second time threshold and then closing the water pump; and judging whether all the other indoor units are in the power-off state, and controlling the water pump of the current indoor unit to continuously maintain the on state.
For the case that the number of the indoor units is multiple, for example, the air conditioning system is a multi-split air conditioner, the states and the operation modes of the multiple indoor units may be different, for example: some indoor units are in an operating state, and some indoor units are in a shutdown state; some indoor units are in cooling operation, and some indoor units are in heating operation. Because a plurality of indoor units share the outdoor unit, when the current indoor unit is shut down under a set working condition and other indoor units are not in a shutdown state, the compressor may still be in a working state; in addition, when the current indoor unit is stopped when reaching a set working condition (for example, when the current indoor unit is stopped when reaching a set temperature), the operation is restarted when reaching a non-set working condition after a period of time, and therefore the indoor unit is stopped only intermittently.
Therefore, under the condition that the current indoor unit is shut down under the set working condition and other indoor units are not in the shutdown state (namely the current indoor unit is not the last indoor unit which is shut down), the refrigerant discharged by the compressor can still enter the indoor heat exchanger of the current indoor unit, so that the current indoor unit is still in the current operation mode, the water pump is continuously kept in the open state, and the continuous increase of the condensed water in the water pan is prevented. And for the condition that the current indoor unit is shut down under the set working condition and all other indoor units are in the shutdown state, the compressor is also in the stop state at the moment, and the current indoor unit is equivalent to the indoor unit which is in the shutdown state and is finally shut down, so that the water pump is shut down after delaying the second time threshold at the moment, and the condensate water amount in the water receiving tray can be ensured to be maintained in the preset safety range.
In the foregoing embodiment, the processor 202 is specifically further configured to: detecting that the indoor unit runs in a heating mode and/or an air supply mode, and turning off the water pump; judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value or not; judging that the amount of the condensed water is less than a set threshold value, and controlling the water pump to maintain a closed state; and judging that the amount of the condensed water is greater than or equal to a set threshold value, starting the water pump, and continuing for a third time threshold value.
When the indoor unit operates in a heating mode and/or an air supply mode, the temperature of the indoor heat exchanger is high, the probability of generating condensed water is extremely low, and therefore the water pump is turned off, electric energy is saved, operation noise is reduced, and dry pumping of the water pump can be prevented. In the operation process, the amount of condensed water in the water receiving tray is detected in real time, whether the amount of the condensed water is smaller than a set threshold value or not is judged, if the amount of the condensed water is smaller than the set threshold value, the amount of the condensed water in the water receiving tray is less, and the phenomenon of dripping is avoided, so that the water pump is kept in a closed state; if the amount of the condensed water is larger than or equal to the set threshold, the fact that the amount of the condensed water in the water receiving tray is more indicates that the risk of dripping exists, so that the water pump is started, the third time threshold of the power-on operation is set, the condensed water in the water receiving tray is discharged in a sufficient amount, the amount of the condensed water in the water receiving tray is maintained in the preset safety range, and the phenomenon of dripping is prevented.
In the foregoing embodiment, the processor 202 is specifically further configured to: after the water pump is started and the third time length threshold value is continued, whether the amount of the condensed water in the water receiving disc is smaller than the set threshold value is judged again; judging that the amount of the condensed water is smaller than a set threshold value, and closing the water pump; and judging that the amount of the condensed water is greater than or equal to a set threshold value, and sending an alarm signal.
After the water pump operates for the third time threshold, the amount of the condensed water in the water receiving tray should be lower than the set threshold theoretically, and if the judgment result shows that the amount of the condensed water in the water receiving tray is still larger than or equal to the set threshold, the system component is indicated to be possibly broken down, so that an alarm signal is sent to prompt a user, and the user can conveniently and timely overhaul; if the judgment result shows that the amount of the condensed water is less than the set threshold, the water-receiving tray can not drip the condensed water, and the water pump can be normally closed.
In any of the above embodiments, the control assembly includes an indoor fan and an air guide strip located at an air outlet of the indoor unit; the processor 202 is specifically configured to: receiving a shutdown signal or detecting the fault shutdown of the indoor unit; and controlling the indoor fan to reduce to a preset rotating speed, continuously operating the fourth time length threshold value, controlling the air guide strips to reduce to a preset opening degree, and continuously operating the fifth time length threshold value.
In the prior art, when the indoor unit is stopped, the indoor fan stops rotating, so that the indoor heat exchanger may be kept at the operating temperature and slowly rises or falls within a period of time when the indoor unit is stopped. Therefore, the risk of generating condensed water still exists after the indoor unit is refrigerated and stopped, and the condensed water in the water pan is increased; after the indoor unit is heated and stopped, if water exists in the water pan, the indoor heat exchanger with high temperature can raise the temperature inside the indoor unit, so that condensed water in the water pan is evaporated and condensed at other structures (such as metal plates) of the indoor unit, and further a water dripping risk is generated.
Therefore, after the indoor unit receives a stop signal or reports a fault and stops the machine, the indoor fan does not stop running immediately, but continues running at the preset rotating speed and continues running for the fourth time threshold, so that the indoor heat exchanger can be prevented from continuing to be heated or cooled, and the risk of dripping caused by the fact that the indoor heat exchanger continues to produce condensed water after refrigeration and stop or the condensed water evaporates and condenses after heating and stop is prevented. Meanwhile, the air guide strips keep the preset opening degree and last for the fifth time threshold value, so that the indoor unit can be enabled to normally circulate with the external environment air, and the indoor heat exchanger can be enabled to reach the room temperature quickly.
In the above embodiment, controlling the indoor fan to continue to operate at the preset rotation speed for the fourth time threshold specifically includes: controlling the indoor fan to reduce to a preset rotating speed and continuing for a fourth time threshold; controlling the air guide strip to keep a preset opening degree and last for a fifth time threshold, specifically: and controlling the air guide strips to reduce to a preset opening degree and continuing for a fifth time threshold.
After the indoor unit is shut down, the indoor fan operates at a reduced speed, the opening degree of the air guide strips is reduced, operation noise can be reduced, exhaust air flow can be prevented from blowing towards a user directly, and therefore the use comfort level of a product is improved.
In the above embodiment, the preset rotation speed is the minimum rotation speed of the indoor fan; the preset opening is the minimum opening of the air guide strips; the fourth duration threshold is less than the fifth duration threshold.
The preset rotating speed is the minimum rotating speed of the indoor fan, so that the running noise can be further reduced.
The preset opening is the minimum opening of the air guide strip, so that the risk of blowing air to a user can be further reduced, and the use experience of the user is further improved.
The fourth time threshold is smaller than the fifth time threshold, so that the indoor unit can flow with the outside air, and the indoor heat exchanger can reach the room temperature as soon as possible.
In any of the above embodiments, the control assembly includes an indoor fan and an air guide strip located at an air outlet of the indoor unit; the processor 202 is further specifically configured to: and controlling the indoor fan and the air guide strip to maintain the current running state when detecting that the amount of the condensed water in the water receiving disc is larger than or equal to a set threshold value.
When the amount of the condensed water in the water receiving tray is larger than or equal to the set threshold value, the fact that the amount of the condensed water in the water receiving tray is too much indicates that a large dripping risk exists, and at the moment, the indoor fan and the air guide strip are controlled to maintain the current running state, so that the air flow in the indoor unit can be promoted, and new condensed water is prevented from being generated.
An embodiment of the third aspect of the present invention provides an air conditioning system, which includes the control device 20 according to the embodiment of the second aspect, so that all the advantages of any of the above embodiments are provided, and are not described herein again.
An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor 202, implements the steps of the control method according to any one of the embodiments of the first aspect, so that all the advantages of any one of the embodiments described above are achieved, and are not described herein again.
In summary, the control method, the control device 20, the air conditioning system and the computer readable storage medium provided by the present invention reasonably regulate and control the control component according to the operation state of the indoor unit, so as to control the amount of the condensed water in the water-receiving tray, so as to maintain the amount of the condensed water in the water-receiving tray within a preset safety range, thereby preventing the amount of the condensed water in the water-receiving tray from being too much, avoiding the phenomenon of water dripping, and improving the use comfort and the user experience of the product.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage 204, CD-ROM, optical storage 204, etc.) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor 202 of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor 202 of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory 204 that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory 204 produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims and their equivalents, and it is intended that the invention encompass such changes and modifications as well.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A control method is suitable for an air conditioning system and is characterized in that the air conditioning system comprises an indoor unit, the indoor unit comprises a water pan and a water pump matched with the water pan, the water pump is used for discharging condensed water in the water pan, and the control method comprises the following steps:
after the indoor unit is detected to be powered on, starting the water pump, and continuing for a first time threshold;
detecting that the indoor unit operates in a heating mode and/or an air supply mode, and turning off the water pump;
judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value or not;
judging that the amount of the condensed water is smaller than a set threshold value, and controlling the water pump to maintain a closed state;
judging that the amount of the condensed water is greater than or equal to a set threshold value, starting the water pump, and continuing for a third time threshold value;
the indoor unit comprises an indoor fan and an air guide strip positioned at an air outlet of the indoor unit;
the control method further comprises the following steps:
receiving a shutdown signal or detecting the fault shutdown of the indoor unit;
controlling the indoor fan to continuously operate at a preset rotating speed for a fourth time length threshold value, and controlling the air guide strips to keep a preset opening degree and continue for a fifth time length threshold value;
the preset rotating speed is the minimum rotating speed of the indoor fan;
the preset opening is the minimum opening of the air guide strips;
the fourth duration threshold is less than the fifth duration threshold.
2. The control method according to claim 1, characterized by further comprising:
and controlling the water pump to maintain the starting state when the indoor unit is detected to run in a cooling mode and/or a dehumidifying mode.
3. The control method according to claim 2, characterized by further comprising:
and after a shutdown instruction is received, controlling the water pump to continuously operate for a second time threshold and then closing the water pump.
4. The control method according to claim 2, wherein the number of the indoor units is plural, the control method further comprising:
detecting that the current indoor unit is shut down under a set working condition, and judging whether all other indoor units are in a shut-down state;
judging that all the other indoor units are in a shutdown state, and controlling a water pump of the current indoor unit to continuously operate for a second time threshold and then closing the water pump;
and judging whether all the other indoor units are in a shutdown state, and controlling the current water pump of the indoor unit to continuously maintain the startup state.
5. The control method of claim 1, further comprising, after turning on the water pump for a third time threshold:
judging whether the amount of the condensed water in the water receiving tray is smaller than a set threshold value or not;
judging that the amount of the condensed water is smaller than a set threshold value, and closing the water pump;
and judging that the amount of the condensed water is greater than or equal to a set threshold value, and sending an alarm signal.
6. The control method according to claim 5,
controlling the indoor fan to continuously operate at a preset rotating speed for a fourth time threshold, specifically: controlling the indoor fan to reduce to the preset rotating speed and continue for the fourth time threshold; and/or
Controlling the air guide strips to keep a preset opening degree and last for a fifth time threshold, specifically: and controlling the air guide strips to be reduced to the preset opening degree and continuing for the fifth time length threshold value.
7. The control method according to any one of claims 1 to 5, wherein the indoor unit includes an indoor fan and a wind guide strip at an air outlet of the indoor unit;
the control method further comprises the following steps:
and controlling the indoor fan and the air guide strip to maintain the current running state when the condensed water amount in the water receiving tray is detected to be larger than or equal to a set threshold value.
8. A control device of an air conditioning system, characterized by comprising a processor for implementing the steps of the control method according to any one of claims 1 to 7 when executing a computer program stored in a memory.
9. An air conditioning system, characterized by comprising a control device according to claim 8.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 1 to 7.
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