CN114811870B - Air conditioner and attenuation compensation control method of water pump thereof - Google Patents

Air conditioner and attenuation compensation control method of water pump thereof Download PDF

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Publication number
CN114811870B
CN114811870B CN202210341780.0A CN202210341780A CN114811870B CN 114811870 B CN114811870 B CN 114811870B CN 202210341780 A CN202210341780 A CN 202210341780A CN 114811870 B CN114811870 B CN 114811870B
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Prior art keywords
water
water pump
controlling
preset time
air conditioner
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CN114811870A (en
Inventor
张书铭
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Hisense Guangdong Air Conditioning Co Ltd
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Hisense Guangdong Air Conditioning 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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner and a damping compensation control method of a water pump thereof, wherein the air conditioner comprises the following components: the device comprises a refrigerant circulation loop, a compressor, a water tank, a water pump, a water pumping motor, a high water level switch and a controller. The controller is configured to: after the air conditioner is started to operate, determining that a high water level switch is closed, controlling the water pump to operate, controlling the water pumping motor to operate every first preset time length, controlling the water pump to stop operating when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, acquiring the first operating time length of the water pump, judging whether the water pump is mechanically attenuated according to the first operating time length and the second preset time length, if so, updating the second preset time length according to the first operating time length and the second preset time length to carry out attenuation compensation on the operating process of the water pump, otherwise, controlling the water pumping motor to stop operating, and controlling the water pump to stop operating after the second preset time length before the operation update of the water pump so as to improve the water pumping effect of the water pump and the water draining effect of the air conditioner.

Description

Air conditioner and attenuation compensation control method of water pump thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to an attenuation compensation control method for an air conditioner and a water pump thereof.
Background
In the air conditioner industry, mobile air conditioners use a water pump and a water pump motor to drain water. In the running process of the whole mobile air conditioner, a large amount of condensed water can be generated by the lower condenser and finally gathered into the water tank at the bottom. When condensed water gathered in the water tank is more, if the condensed water is not drained in time, the condensed water can flow to the ground to bring loss to users. At the moment, the operation of the water pump can be controlled, and condensed water is pumped out of the machine body, so that the whole machine can be ensured to continuously operate for a long time.
After the water pump runs for a long time, mechanical abrasion can occur in the pump body, intermittent idle running of the rotary vane occurs, and water pumping is not smooth. On the other hand, more impurities and scale can be generated in the pump, so that the rotation of the motor shaft is blocked. At present, the water draining direction of an intelligent water pump is mainly controlled in the industry, the problem of poor water draining effect caused by attenuation of the water pump after the water pump runs for a long time is not concerned, and a mature and effective set of control method is not formulated for the problem.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention aims to provide an air conditioner and a damping compensation control method of a water pump of the air conditioner.
The invention provides an air conditioner, comprising: a refrigerant circulation loop for circulating the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer; the compressor is used for compressing the low-temperature low-pressure refrigerant gas into high-temperature high-pressure refrigerant gas and discharging the high-temperature high-pressure refrigerant gas to the condenser; a water tank for collecting condensed water generated by the operation of the condenser; the water pump is arranged at the bottom of the water tank and is used for pumping out condensed water in the water tank during operation; the water spraying motor is used for spraying condensed water in the water tank onto the condenser; the high water level switch is arranged in the water tank and is used for being closed when the water level of the condensed water reaches a water level threshold value for representing the high water level, or is opened when the water level of the condensed water does not reach the water level threshold value; the controller is configured to: after the air conditioner is started to operate, determining that the high water level switch is closed, controlling the water pump to operate, controlling the water pumping motor to operate at intervals of a first preset time length, controlling the water pump to stop operating when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, acquiring the first operating time length of the water pump, judging whether the water pump mechanically attenuates according to the first operating time length and a second preset time length, if so, updating the second preset time length according to the first operating time length and the second preset time length to compensate attenuation in the operation process of the water pump, otherwise, controlling the water pumping motor to stop operating, and controlling the water pump to stop operating after the second preset time length before the operation update of the water pump; wherein the first preset time period is longer than the second preset time period.
In addition, the air conditioner according to the embodiment of the invention can also have the following additional technical characteristics:
further, the controller is specifically configured to: and if the first operation duration exceeds the second preset duration, determining that the mechanical attenuation occurs to the water pump, otherwise, determining that the mechanical attenuation does not occur to the water pump.
Further, the controller is specifically configured to: after determining that the mechanical attenuation occurs to the water pump, calculating a difference value between the first operation duration and the second preset duration; and taking the sum of the difference value and the second preset time length as an updated second preset time length to carry out attenuation compensation on the running process of the water pump.
Further, the controller is configured to: and when the high water level switch is disconnected, controlling the water pump to stop running.
Further, the controller is configured to: and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
According to the air conditioner provided by the embodiment of the invention, when the high water level switch is closed, the water pump is controlled to operate, the water pumping motor is controlled to operate at intervals of a first preset time length, when the rotating speed of the water pumping motor exceeds the idling rotating speed threshold value, the water pump is controlled to stop operating, the first operating time length of the water pump is obtained, whether the water pump is mechanically attenuated or not is judged according to the first operating time length and a second preset time length, if yes, the second preset time length is updated according to the first operating time length and the second preset time length, so that attenuation compensation is carried out on the operating process of the water pump, otherwise, the water pumping motor is controlled to stop operating, the second preset time length before the operation of the water pump is controlled to stop operating, and finally, condensed water is completely pumped out, namely, the operating time of the water pump is controlled to achieve the purpose of attenuation compensation through introducing the idling rotating speed threshold value of the water pumping motor and the second preset time length, and therefore the water pumping effect of the water pump and the water draining effect of the air conditioner are improved, and the user experience is further improved.
The present invention also provides a method for controlling attenuation compensation of a water pump of an air conditioner, for the air conditioner according to any of the embodiments, the method comprising: after the air conditioner is started and operated, determining that the high water level switch is closed, and controlling the water pump to operate; controlling the running of the water-spraying motor every a first preset time length; when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, controlling the water pump to stop running, and acquiring a first running time of the water pump; judging whether the water pump is mechanically attenuated or not according to the first operation time length and the second preset time length, if so, updating the second preset time length according to the first operation time length and the second preset time length to compensate attenuation in the operation process of the water pump, otherwise, controlling the water pumping motor to stop operation, and controlling the water pump to stop operation after the second preset time length before the operation of the water pump is updated; wherein the first preset time period is longer than the second preset time period.
In addition, the attenuation compensation control method of the water pump of the air conditioner according to the embodiment of the invention can also have the following additional technical characteristics:
further, judging whether the water pump is mechanically attenuated according to the first operation duration and the second preset duration, including: and if the first operation duration exceeds the second preset duration, determining that the mechanical attenuation occurs to the water pump, otherwise, determining that the mechanical attenuation does not occur to the water pump.
Further, updating the second preset duration according to the first running duration and the second preset duration to perform attenuation compensation on the running process of the water pump, including: after determining that the mechanical attenuation occurs to the water pump, calculating a difference value between the first operation duration and the second preset duration; and taking the sum of the difference value and the second preset time length as an updated second preset time length to carry out attenuation compensation on the running process of the water pump.
Further, the method further comprises: and when the high water level switch is disconnected, controlling the water pump to stop running.
Further, the method further comprises: and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
According to the attenuation compensation control method for the water pump of the air conditioner, when the high water level switch is closed, the water pump is controlled to operate, the water pumping motor is controlled to operate every first preset time period, when the rotating speed of the water pumping motor exceeds the idle rotating speed threshold value, the water pump is controlled to stop operating, the first operating time period of the water pump is obtained, whether the water pump is mechanically attenuated or not is judged according to the first operating time period and the second preset time period, if yes, the second preset time period is updated according to the first operating time period and the second preset time period, so that attenuation compensation is carried out on the operation process of the water pump, otherwise, the water pumping motor is controlled to stop operating, the operation is controlled to be stopped after the second preset time period before the operation of the water pump is updated, and finally condensed water is completely pumped out, namely, the operation time of the water pump is controlled to achieve the attenuation compensation purpose through the idle rotating speed threshold value and the second preset time period which are introduced into the water pumping motor, the reliability of the water pump is effectively improved, the water pumping effect of the water pump and the water draining effect of the air conditioner are improved, and user experience is further improved.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a structure of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart of determining whether mechanical damping of a water pump has occurred in accordance with one embodiment of the present invention;
FIG. 3 is a flow chart of attenuation compensation for the operation of a water pump according to one embodiment of the invention;
FIG. 4 is a flow chart of controlling a water pump according to one embodiment of the invention;
FIG. 5 is a flow chart of attenuation compensation for the operation of a water pump according to another embodiment of the present invention;
fig. 6 is a flowchart of a damping compensation control method of a water pump of an air conditioner according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The air conditioner of the present invention performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.
An outdoor unit of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.
An attenuation compensation control method of an air conditioner and a water pump thereof according to an embodiment of the present invention will be described with reference to fig. 1 to 6.
Fig. 1 is a schematic view of a structure of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, an air conditioner includes: the refrigerant circulation circuit 10, the compressor 20, the water tank 30, the water pumping motor 40, the water pump 50, the high water level switch 60 and the controller 70. The refrigerant circulation loop 10 circulates a refrigerant in a loop formed by the compressor 20, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer; the compressor 20 is used for compressing low-temperature low-pressure refrigerant gas into high-temperature high-pressure refrigerant gas and discharging the high-temperature high-pressure refrigerant gas to the condenser; the water tank 30 is used for collecting condensed water generated by the operation of the condenser; the water spraying motor 40 is used for spraying condensed water in the water tank 30 onto the condenser; the water pump 50 is arranged at the bottom of the water tank 30 and is used for pumping out condensed water in the water tank 30 during operation; a high water level switch 60 is disposed within the water tank for closing when the level of the condensed water reaches a water level threshold value for characterizing the high water level, or opening when the level of the condensed water does not reach the water level threshold value; the controller 70 is configured to: after the air conditioner is started to operate, determining that the high water level switch 60 is closed, controlling the water pump 50 to operate, controlling the water pumping motor 40 to operate at intervals of a first preset time period, controlling the water pump 50 to stop operating when the rotating speed of the water pumping motor 40 exceeds an idle rotating speed threshold value, acquiring the first operating time period of the water pump 50, judging whether the water pump 50 is mechanically attenuated according to the first operating time period and a second preset time period, if so, updating the second preset time period according to the first operating time period and the second preset time period to carry out attenuation compensation on the operating process of the water pump 50, otherwise, controlling the water pumping motor 40 to stop operating, and controlling the water pump 50 to stop operating after the second preset time period before the updating; wherein the first preset time period is longer than the second preset time period.
Specifically, when the water level reaches the water level threshold of the high water level when the condensed water in the water tank 30 is large, the high water level switch 60 is closed, and the water pump 50 is controlled to operate to pump water. The first preset duration refers to an accumulated running time of the water pump 50, when the accumulated running time of the water pump reaches the first preset duration, the water pump 50 is considered to have run for a long time, abrasion is very easy to occur, mechanical attenuation occurs, whether the water pump 50 really has the mechanical attenuation needs to be determined, if the mechanical attenuation occurs, attenuation compensation needs to be performed on the running process of the water pump 50, if the mechanical attenuation does not occur, the attenuation compensation does not need to be performed, the accumulated running time of the water pump 50 is cleared, and when the accumulated running time reaches the first preset duration again, whether the mechanical attenuation occurs to the water pump 50 is determined again. The second preset time period refers to an operation time of the water pump 50 in the case where the water pump 50 is not mechanically attenuated, when the water level in the water tank 30 is lowered from the water level threshold of the high water level to zero. The first operation period refers to an actual operation time of the water pump 50 when the water level in the water tank 30 drops from the water level threshold of the high water level to zero. If the water pump 50 is mechanically attenuated, the first operation period is longer than the second preset period, so that it can be determined whether the water pump 50 is mechanically attenuated by the actual operation time of the water pump 50.
In a specific embodiment, when the water level in the water tank 30 reaches a water level threshold of a high water level, that is, the high level switch 60 is closed, and the accumulated operation time of the water pump 50 reaches a first preset time period, the water pumping motor 40 and the water pump 50 are controlled to operate, when the rotation speed of the water pumping motor 40 exceeds the idle rotation speed threshold, at this time, the condensed water in the water tank 30 is pumped out completely, that is, the water level in the water tank 30 has fallen from the water level threshold of the high water level to zero, at this time, the water pump 50 is controlled to stop operating, and a first operation time period of the water pump 50 is obtained, which corresponds to the actual operation time of the water pump 50 when the water level in the water tank 30 falls from the water level threshold of the high water level to zero, and then whether the water pump 50 is mechanically attenuated is judged according to the first operation time period and a second preset time period.
Specifically, if the water pump 50 mechanically attenuates, the water level in the water tank 30 decreases from the water level threshold of the high water level to zero, and the running time of the water pump 50 becomes longer than the running time of the water pump 50 without mechanical attenuation, so that the second preset time length needs to be updated to compensate for the attenuation of the running process of the water pump 50, so as to effectively improve the reliability of the operation of the water pump 50, thereby improving the water pumping effect of the water pump 50 and the water draining effect of the air conditioner, and further improving the user experience; if the water pump 50 does not mechanically attenuate, the second preset time period is not required to be updated, the water pumping motor 40 is controlled to stop running, and the condensed water in the water tank 30 can be pumped out completely by only controlling the water pump 50 to stop running after the second preset time period before the updating, so that the whole water pumping process is completed.
In one embodiment of the invention, as shown in fig. 2, the controller is specifically configured to: if the first operation duration exceeds the second preset duration, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
Specifically, the first operation duration corresponds to the actual operation time of the water pump when the water level in the water tank drops from the water level threshold of the high water level to zero, the second preset duration refers to the operation time of the water pump when the water level in the water tank drops from the water level threshold of the high water level to zero under the condition that no mechanical attenuation occurs, and if the water pump is mechanically attenuated, the first operation duration is longer than the second preset duration, therefore, if the first operation duration exceeds the second preset duration, the mechanical attenuation of the water pump is determined, and otherwise, the mechanical attenuation of the water pump is determined not to occur.
In a specific embodiment, in case the water pump is not mechanically attenuated, the water level drops from the water level threshold of the high water level to zero, and the running time of the water pump, i.e. the second preset time period, is for example TH. When the high-level switch is closed (i.e. the water level reaches the water level threshold of the high water level), and the accumulated running time of the water pump reaches a first preset duration, for example, 50 hours, the water pumping motor and the water pump are controlled to run, when the rotating speed of the water pumping motor exceeds the idle rotating speed threshold, the water pump is controlled to stop running (i.e. the condensed water in the water tank is pumped out completely, the water level is zero), namely, the water level is reduced to zero from the water level threshold of the high water level, the actual running time of the water pump is the first running duration, for example, tem, if TH < Tem, the water pump is determined to have mechanical attenuation, otherwise, the water pump is determined to have no mechanical attenuation.
In one embodiment of the invention, as shown in fig. 3, the controller is specifically configured to: after determining that the mechanical attenuation of the water pump occurs, calculating a difference value between the first operation time length and the second preset time length; and taking the sum of the difference value and the second preset time period as the updated second preset time period to carry out attenuation compensation on the running process of the water pump.
Specifically, after mechanical attenuation of the water pump is determined, that is, when the first running time period when the water level in the water tank is reduced from the water level threshold of the high water level to zero is longer than the second preset time period, calculating a difference value between the first running time period and the second preset time period, taking the difference value as compensation time for attenuation compensation of the water pump, and taking the sum of the difference value and the second preset time period as updated second preset time period. When the high water level switch is closed again and the accumulated running time of the water pump does not reach the first preset duration, the running of the water pump is stopped after the second preset duration is controlled to be updated, the whole water pumping process is completed, the running process of the water pump is subjected to attenuation compensation, the working reliability of the water pump is effectively improved, the water pumping effect of the water pump and the water draining effect of the air conditioner are improved, and user experience is further improved.
In a specific embodiment, when the water pump is not mechanically attenuated, the water level is reduced from the water level threshold of the high water level to zero, for example, TH, and when the high-level switch is closed (i.e., the water level reaches the water level threshold of the high water level) and it is determined that the water pump is mechanically attenuated, the actual running time of the water pump, for example, tem, is the actual running time of the water pump, for example, the first running time is the first running time, and the difference value Tem-TH between the first running time and the second preset time is, for example, tca, and the sum of the difference values tca and TH is used as the updated second preset time to compensate for the attenuation of the running process of the water pump.
In one embodiment of the invention, as shown in fig. 4, the controller is configured to: when the high water level switch is turned off, the water pump is controlled to stop running.
Specifically, when the water level of the condensed water in the water tank does not reach the water level threshold value of the high water level, the high water level switch is in an off state, and at the moment, the condensed water in the water tank is not too much, the whole air conditioner is controlled to operate according to a preset mode, and the water pump is not required to be controlled to operate to pump the condensed water in the water tank, namely the water pump is controlled to stop operating.
In one embodiment of the invention, the controller is configured to: and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
Specifically, when the high water level switch is closed and the accumulated running time of the water pump reaches a first preset time length, the water pump is controlled to run, the water pumping motor is controlled to run, when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, the water pump is controlled to stop running, the first running time length of the water pump is obtained, whether the water pump is mechanically attenuated or not is judged according to the first running time length and a second preset time length, if yes, the second preset time length is updated according to the first running time length and the second preset time length, so that attenuation compensation is carried out on the running process of the water pump, and after the attenuation compensation is carried out on the running process of the water pump, the water pumping motor is controlled to stop running, and the accumulated running time of the water pump is cleared. When the high water level switch is closed and the accumulated running time of the water pump reaches the first preset time again, controlling the water pump to run and controlling the water pumping motor to run again.
Next, referring to fig. 5, the damping compensation control of the water pump of the air conditioner according to the embodiment of the present invention is illustrated, and as shown in fig. 5, a flowchart of the damping compensation control of the water pump of the air conditioner according to a specific embodiment of the present invention is illustrated.
Step S10, the air conditioner is started and operated.
And S20, controlling the water-beating motor to stop running.
Step S30, judging whether the high water level switch is closed, if yes, executing step S40, otherwise, executing step S31.
And S31, controlling the water pump to stop running.
And S40, controlling the water pump to operate.
Step S50, judging that the accumulated running time of the water pump reaches a first preset duration, if yes, executing step S60, otherwise, executing step S51.
And S51, controlling the water pumping motor to stop running, and controlling the water pump to stop running after a second preset time period before running update.
And step S60, controlling the operation of the water spraying motor.
Step S70, judging whether the rotating speed of the water-fetching motor exceeds an idle rotating speed threshold, if yes, executing step S80, otherwise, executing step S70.
And S80, controlling the water pump to stop running.
Step S90, obtaining a first operation duration of the water pump.
Step S100, judging whether the first operation duration exceeds the second preset duration, if so, executing step S110, otherwise, executing step S130.
Step S110, calculating a difference value between the first operation duration and the second preset duration.
And step S120, taking the sum of the difference value and the second preset time length as the updated second preset time length to carry out attenuation compensation on the running process of the water pump.
Step S130, the accumulated running time of the water pump is cleared, and the step S20 is executed.
According to the air conditioner provided by the embodiment of the invention, when the high water level switch is closed, the water pump is controlled to operate, the water pumping motor is controlled to operate at intervals of a first preset time length, when the rotating speed of the water pumping motor exceeds the idling rotating speed threshold value, the water pump is controlled to stop operating, the first operating time length of the water pump is obtained, whether the water pump is mechanically attenuated or not is judged according to the first operating time length and a second preset time length, if yes, the second preset time length is updated according to the first operating time length and the second preset time length, so that attenuation compensation is carried out on the operating process of the water pump, otherwise, the water pumping motor is controlled to stop operating, the second preset time length before the operation of the water pump is controlled to stop operating, and finally, condensed water is completely pumped out, namely, the operating time of the water pump is controlled to achieve the purpose of attenuation compensation through introducing the idling rotating speed threshold value of the water pumping motor and the second preset time length, and therefore the water pumping effect of the water pump and the water draining effect of the air conditioner are improved, and the user experience is further improved.
The further embodiment of the invention also discloses a damping compensation control method of the water pump of the air conditioner, which is used for the air conditioner in any embodiment. Fig. 6 is a flowchart of a damping compensation control method of a water pump of an air conditioner according to an embodiment of the present invention, as shown in fig. 6, the method comprising the steps of:
and S1, after the air conditioner is started and operated, determining that a high water level switch is closed, and controlling a water pump to operate.
And S2, controlling the operation of the water spraying motor every a first preset time period.
And step S3, when the rotating speed of the water pumping motor exceeds the idling rotating speed threshold value, controlling the water pump to stop running, and acquiring a first running duration of the water pump.
And S4, judging whether the mechanical attenuation of the water pump occurs or not according to the first operation time length and the second preset time length.
And S5, if the water pump is mechanically attenuated, updating the second preset time length according to the first operation time length and the second preset time length so as to compensate the attenuation of the operation process of the water pump.
Step S6, if the water pump does not mechanically attenuate, controlling the water pumping motor to stop running, and controlling the water pump to stop running after a second preset time period before running and updating; wherein the first preset time period is longer than the second preset time period.
In one embodiment of the present invention, determining whether the mechanical damping of the water pump occurs according to the first operation duration and the second preset duration includes: if the first operation duration exceeds the second preset duration, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
In one embodiment of the present invention, updating the second preset time period according to the first operation time period and the second preset time period to perform attenuation compensation on the operation process of the water pump includes: after determining that the mechanical attenuation of the water pump occurs, calculating a difference value between the first operation time length and the second preset time length; and taking the sum of the difference value and the second preset time period as the updated second preset time period to carry out attenuation compensation on the running process of the water pump.
In one embodiment of the invention, the method further comprises: when the high water level switch is turned off, the water pump is controlled to stop running.
In one embodiment of the invention, the method further comprises: and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
It should be noted that, when the attenuation compensation control method for the water pump of the air conditioner according to the embodiment of the present invention performs the attenuation compensation control for the water pump, the specific implementation manner of the method is similar to that of the controller of the air conditioner according to the embodiment of the present invention, and specific reference is made to the description of the air conditioner section, so that redundancy is reduced and no redundant description is given here.
According to the attenuation compensation control method for the water pump of the air conditioner, when the high water level switch is closed, the water pump is controlled to operate, the water pumping motor is controlled to operate every first preset time period, when the rotating speed of the water pumping motor exceeds the idle rotating speed threshold value, the water pump is controlled to stop operating, the first operating time period of the water pump is obtained, whether the water pump is mechanically attenuated or not is judged according to the first operating time period and the second preset time period, if yes, the second preset time period is updated according to the first operating time period and the second preset time period, so that attenuation compensation is carried out on the operation process of the water pump, otherwise, the water pumping motor is controlled to stop operating, the operation is controlled to be stopped after the second preset time period before the operation of the water pump is updated, and finally condensed water is completely pumped out, namely, the operation time of the water pump is controlled to achieve the attenuation compensation purpose through the idle rotating speed threshold value and the second preset time period which are introduced into the water pumping motor, the reliability of the water pump is effectively improved, the water pumping effect of the water pump and the water draining effect of the air conditioner are improved, and user experience is further improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. An air conditioner, comprising:
a refrigerant circulation loop for circulating the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing the low-temperature low-pressure refrigerant gas into high-temperature high-pressure refrigerant gas and discharging the high-temperature high-pressure refrigerant gas to the condenser;
a water tank for collecting condensed water generated by the operation of the condenser;
the water pump is arranged at the bottom of the water tank and is used for pumping out condensed water in the water tank during operation;
the water spraying motor is used for spraying condensed water in the water tank onto the condenser;
the high water level switch is arranged in the water tank and is used for being closed when the water level of the condensed water reaches a water level threshold value for representing the high water level, or is opened when the water level of the condensed water does not reach the water level threshold value;
the controller is configured to: after the air conditioner is started to operate, determining that the high water level switch is closed, controlling the water pump to operate, controlling the water pumping motor to operate at intervals of a first preset duration, controlling the water pump to stop operating when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, acquiring the first operation duration of the water pump, if the first operation duration exceeds a second preset duration, calculating a difference value between the first operation duration and the second preset duration, and taking the sum of the difference value and the second preset duration as an updated second preset duration to carry out attenuation compensation on the operation process of the water pump; if the first operation duration does not exceed the second preset duration, controlling the water pumping motor to stop operating, and controlling the water pump to stop operating after the second preset duration before operation updating; wherein the first preset time period is longer than the second preset time period.
2. The air conditioner of claim 1, wherein the controller is configured to:
and when the high water level switch is disconnected, controlling the water pump to stop running.
3. The air conditioner of claim 1, wherein the controller is configured to:
and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
4. A method of controlling attenuation compensation of a water pump of an air conditioner, for an air conditioner according to any one of claims 1 to 3, comprising:
after the air conditioner is started and operated, determining that the high water level switch is closed, and controlling the water pump to operate;
controlling the running of the water-spraying motor every a first preset time length;
when the rotating speed of the water pumping motor exceeds an idle rotating speed threshold value, controlling the water pump to stop running, and acquiring a first running time of the water pump;
if the first operation time length exceeds the second preset time length, calculating a difference value between the first operation time length and the second preset time length, and taking the sum of the difference value and the second preset time length as an updated second preset time length to carry out attenuation compensation on the operation process of the water pump; if the first operation duration does not exceed the second preset duration, controlling the water pumping motor to stop operating, and controlling the water pump to stop operating after the second preset duration before operation updating; wherein the first preset time period is longer than the second preset time period.
5. The attenuation compensation control method of a water pump of an air conditioner according to claim 4, further comprising:
and when the high water level switch is disconnected, controlling the water pump to stop running.
6. The attenuation compensation control method of a water pump of an air conditioner according to claim 4, further comprising:
and after the attenuation compensation is carried out on the operation process of the water pump, controlling the water pumping motor to stop operation.
CN202210341780.0A 2022-04-02 2022-04-02 Air conditioner and attenuation compensation control method of water pump thereof Active CN114811870B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08226662A (en) * 1995-02-20 1996-09-03 Matsushita Electric Ind Co Ltd Drain pump controller and controlling method for air conditioner
JP2021050652A (en) * 2019-09-25 2021-04-01 東芝キヤリア株式会社 Air conditioning device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08226662A (en) * 1995-02-20 1996-09-03 Matsushita Electric Ind Co Ltd Drain pump controller and controlling method for air conditioner
JP2021050652A (en) * 2019-09-25 2021-04-01 東芝キヤリア株式会社 Air conditioning device

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