CN114811872B - 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 PDFInfo
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- CN114811872B CN114811872B CN202210342018.4A CN202210342018A CN114811872B CN 114811872 B CN114811872 B CN 114811872B CN 202210342018 A CN202210342018 A CN 202210342018A CN 114811872 B CN114811872 B CN 114811872B
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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 refrigerant circulation circuit, compressor, basin, water pump, high water level switch, low water level switch and controller, the controller is configured to: after the air conditioner is started and operated, the compensation zone bit of the water pump is set to 0, the high water level switch is determined to be closed, the water pump is controlled to operate according to a preset rated voltage value, the current working current value of the water pump is obtained, when the low water level switch is closed, whether the water pump is mechanically attenuated or not is judged according to the current working current value and the compensation zone bit, if yes, the compensation zone bit is set to 1, the current environment temperature is obtained, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, and if not, the water pump is controlled to operate according to the rated voltage value, so that the pumping effect of the water pump and the drainage effect of the air conditioner are improved.
Description
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 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 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 first 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 first water level threshold value; a low water level switch arranged in the water tank and used for being closed when the water level of the condensed water reaches a second water level threshold value used for representing the low water level, or being opened when the water level of the condensed water does not reach the second water level threshold value; the controller is configured to: after the air conditioner is started to operate, a compensation zone bit of the water pump is set to 0, the high water level switch is determined to be closed, the water pump is controlled to operate according to a preset rated voltage value, a current working current value of the water pump is obtained, when the low water level switch is closed, whether the water pump mechanically attenuates or not is judged according to the current working current value and the compensation zone bit, if yes, the compensation zone bit is set to 1, the current environment temperature is obtained, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, so that attenuation compensation is carried out on the operation process of the water pump, otherwise, the water pump is controlled to operate according to the rated voltage value until the low water level switch is opened, the water pump is controlled to stop operating, and the compensation zone bit is set to 0.
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 current working current value is larger than the rated current value and the compensation zone bit is 0, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
Further, the controller is specifically configured to: calculating a difference between the present operating current value and the nominal current value after determining that the mechanical decay of the water pump has occurred; and adjusting the driving voltage of the water pump according to the difference value, the rated current value and the current ambient temperature so as to carry out attenuation compensation on the running process of the water pump.
Further, the controller is specifically configured to: when the ratio of the difference value to the rated current value does not exceed a first preset ratio, taking the product of the rated voltage value and a first numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the first preset proportion and the second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and a third preset proportion, taking the product of the rated voltage value and a third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and a fourth numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is greater than the preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, and the third numerical value is larger than the second numerical value and smaller than the fourth numerical value.
Further, the controller is configured to: and when the high water level switch is disconnected, controlling the water pump to stop running, and setting the compensation zone bit to 0.
According to the air conditioner provided by the embodiment of the invention, when the low water level switch is closed, whether the water pump is mechanically attenuated is judged through the current working current value of the water pump, if the water pump is mechanically attenuated, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, so that attenuation compensation is carried out on the running process of the water pump, the water pumping effect of the water pump and the water draining effect of the air conditioner can be improved, and further the user experience is improved. Meanwhile, by introducing a water pump protection mechanism of the mobile air conditioner, when the driving voltage of the water pump is adjusted, the rated current value and the current environment temperature of the water pump are taken into consideration, so that the pump body is prevented from being damaged, and the working reliability of the water pump is 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, the compensation zone bit of the water pump is set to 0; determining that a high water level switch is closed; controlling the water pump to operate according to a preset rated voltage value, and obtaining a current working current value of the water pump; when the low water level switch is closed, judging whether mechanical attenuation occurs to the water pump according to the current working current value and the compensation zone bit, if so, setting the compensation zone bit to be 1, acquiring the current environment temperature, adjusting the driving voltage of the water pump according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump so as to carry out attenuation compensation on the running process of the water pump, otherwise, controlling the water pump to run according to the rated voltage value until the low water level switch is disconnected, controlling the water pump to stop running, and setting the compensation zone bit to be 0.
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 current working current value and the compensation zone bit, including: and if the current working current value is larger than the rated current value and the compensation zone bit is 0, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
Further, adjusting the driving voltage of the water pump according to the current ambient temperature, the current working current value of the water pump and the rated current value of the water pump so as to perform attenuation compensation on the running process of the water pump, including: calculating a difference between the present operating current value and the nominal current value after determining that the mechanical decay of the water pump has occurred; and adjusting the driving voltage of the water pump according to the difference value, the rated current value and the current ambient temperature so as to carry out attenuation compensation on the running process of the water pump.
Further, adjusting the driving voltage of the water pump according to the difference value, the rated current value and the ambient temperature to perform the attenuation compensation on the operation process of the water pump, including: when the ratio of the difference value to the rated current value does not exceed a first preset ratio, taking the product of the rated voltage value and a first numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the first preset proportion and the second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and a third preset proportion, taking the product of the rated voltage value and a third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and a fourth numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is greater than the preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, and the third numerical value is larger than the second numerical value and smaller than the fourth numerical value.
Further, the method further comprises: and when the high water level switch is disconnected, controlling the water pump to stop running, and setting the compensation zone bit to 0.
According to the attenuation compensation control method for the water pump of the air conditioner, when the low water level switch is closed, whether the water pump is mechanically attenuated or not is judged through the current working current value of the water pump, if the water pump is mechanically attenuated, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, so that attenuation compensation is carried out on the running process of the water pump, the water pumping effect of the water pump and the water draining effect of the air conditioner can be improved, and user experience is further improved. Meanwhile, by introducing a water pump protection mechanism of the mobile air conditioner, when the driving voltage of the water pump is adjusted, the rated current value and the current environment temperature of the water pump are taken into consideration, so that the pump body is prevented from being damaged, and the working reliability of the water pump is 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 pump attenuation compensation according to one embodiment of the present invention;
FIG. 3 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. 4 is a flow chart of pump attenuation compensation according to another embodiment of the present invention;
FIG. 5 is a flow chart of pump attenuation compensation according to another embodiment of the present invention;
fig. 6 is a flowchart of attenuation compensation control of a water pump of an air conditioner according to an embodiment of the present invention;
fig. 7 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 7.
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 pump 40, the high water level switch 50, the low 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 pump 40 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 50 is disposed within the water tank 30 for closing when the level of the condensed water reaches a first water level threshold value for characterizing the high water level, or opening when the level of the condensed water does not reach the first water level threshold value; a low water level switch 60 is disposed within the water tank 30 for closing when the level of the condensed water reaches a second water level threshold value indicative of a low water level, or opening when the level of the condensed water does not reach the second water level threshold value; the controller 70 is configured to: after the air conditioner is started to operate, the compensation zone bit of the water pump 40 is set to 0, the high water level switch 50 is determined to be closed, the water pump 40 is controlled to operate according to a preset rated voltage value, and a current operating current value of the water pump 40 is obtained, when the low water level switch is closed 60, whether the water pump 40 mechanically attenuates is judged according to the current operating current value and the compensation zone bit, if yes, the compensation zone bit is set to 1, and a current environment temperature is obtained, the driving voltage of the water pump 40 is adjusted according to the current environment temperature, the current operating current value of the water pump 40 and the rated current value of the water pump 40, so that attenuation compensation is carried out on the operation process of the water pump 40, and then the current operating current of the water pump 40 is continuously detected.
Specifically, when the compensation flag bit of the water pump 40 is 0, it indicates that the running process of the water pump 40 is not subjected to attenuation compensation; when the compensation flag of the water pump 40 is 1, it indicates that the operation of the water pump 40 has been subjected to the attenuation compensation. In the process of controlling the operation of the water pump 40, if it is determined that the mechanical damping of the water pump 40 occurs, that is, damping compensation needs to be performed on the operation process of the water pump 40, at this time, a compensation flag bit of the water pump 40 is set to 1. When the controller 70 detects that the compensation flag bit of the water pump 40 is 1 before the low water level switch 60 is turned off, i.e., before the water pump 40 is controlled to stop running, the damping compensation is not performed on the running process of the water pump 40, i.e., after it is determined that the mechanical damping occurs on the water pump 40 during each running process of the water pump 40, the damping compensation is performed only once. That is, during one operation of the water pump 40, if the water pump 40 is mechanically attenuated, the driving voltage of the water pump 40 is adjusted only once according to the current ambient temperature, the current operating current value of the water pump 40 and the rated current value of the water pump 40 until the water pump 40 stops operating, the compensation flag bit of the water pump 40 is set to 0, and when the water pump 40 meets the operating condition again, if the water pump 40 is mechanically attenuated, the attenuation compensation is performed for the second time.
In a specific embodiment, as shown in fig. 2, after the air conditioner is started and operated, the compensation flag bit of the water pump 40 is set to 0, the controller 70 firstly detects whether the water level switch 50 is closed, if the water level switch 50 is closed, which indicates that the condensed water in the water tank 30 is more, the water pump 40 needs to be controlled to operate according to a preset rated voltage value to pump out the condensed water in the water tank 30, and it should be noted that the rated voltage value is the optimal voltage when the water pump 40 works normally; if the high water level switch 50 is turned off, the driving voltage of the water pump 40 is controlled to be 0, i.e., the water pump 40 is controlled to stop running. In the water pumping process of the water pump 40, if the low water level switch 60 is closed, the water pump 40 is still in a water pumping state, at the moment, whether the water pump 40 is mechanically attenuated is judged according to the current working current value and the compensation zone bit, if the water pump 40 is mechanically attenuated, the driving voltage of the water pump 40 is adjusted according to the current environment temperature, the current working current value of the water pump 40 and the rated current value of the water pump 40, so that attenuation compensation is carried out on the running process of the water pump 40, the compensation zone bit is set to be 1, and otherwise, the running process of the water pump 40 is not carried out on attenuation compensation; when the low water level switch 60 is turned off, which indicates that condensed water has been pumped out cleanly, the water pump 40 is controlled to stop operating, and the compensation flag bit is set to 0.
In one embodiment of the invention, as shown in fig. 3, the controller is specifically configured to: in the water pumping process of the water pump, if the current working current value is larger than the rated current value and the compensation flag bit is 0, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
Specifically, in the water pumping process of the water pump, if the low water level switch is closed, the current working current value of the water pump is larger than the rated current value and the compensation zone bit is 0, the water pump is mechanically attenuated due to the influence of mechanical abrasion, in the running process, attenuation compensation is not performed, so that the pumping amount in the same time is reduced, the water draining effect of the air conditioner is poor, the user experience is poor, the running process of the water pump is required to be attenuated and compensated, otherwise, the water pump is not influenced by the mechanical abrasion, mechanical attenuation is not generated, the water pump can be driven to continue running under the current rated voltage until condensed water is pumped out completely, and the low water level switch is opened.
In one embodiment of the invention, as shown in fig. 4, the controller is specifically configured to: after determining that the mechanical attenuation of the water pump occurs, calculating the difference value between the current working current value and the rated current value; and adjusting the driving voltage of the water pump according to the difference value, the rated current value and the current ambient temperature so as to carry out attenuation compensation on the running process of the water pump.
Specifically, after the mechanical attenuation of the water pump occurs, the current working current value of the water pump becomes larger, intermittent idle running of the rotating vane occurs, and the larger the difference value between the current working current value and the rated current value is, the more serious the mechanical attenuation is. Thus, after mechanical damping of the water pump, the difference between the current operating current value and the nominal current value of the water pump may be used as a factor for damping compensation during operation of the water pump. Meanwhile, a water pump protection mechanism of the mobile air conditioner is introduced, and when the water pump is subjected to attenuation compensation, namely, when the driving voltage of the water pump is adjusted, the rated current value and the current environment temperature of the water pump are taken into consideration, so that the pump body is prevented from being damaged, and the working reliability of the water pump is improved.
In one embodiment of the invention, the controller is specifically configured to: after the mechanical attenuation of the water pump is determined, when the ratio of the difference value between the current working current value and the rated current value of the water pump and the rated current value does not exceed a first preset proportion, taking the product of the rated voltage value and the first value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between a first preset proportion and a second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and the third preset proportion, taking the product of the rated voltage value and the third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds a third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and a fourth value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds a third preset ratio and the ambient temperature is greater than a preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, and the third numerical value is larger than the second numerical value and smaller than the fourth numerical value.
Specifically, the larger the difference value between the current working current value and the rated current value of the water pump is, the more serious the mechanical attenuation is, so that the difference value between the current working current value and the rated current value of the water pump is divided into a plurality of different sections, and each section adopts different attenuation compensation control strategies so as to furthest improve the pumping effect of the water pump and the drainage effect of the air conditioner and further improve the user experience. In addition, when the ambient temperature is high, that is, the current ambient temperature is greater than the preset temperature, in order to improve the reliability of the water pump, the driving voltage of the water pump is not increased any more, and the rated voltage of the water pump is used as the driving voltage of the water pump.
In a specific embodiment, as shown in fig. 5, after determining that the mechanical attenuation occurs in the water pump, the difference between the current operating current value and the rated current value of the water pump is, for example, icha, the rated current value of the water pump is, for example, ie, the ambient temperature is, for example, tem, the first preset ratio is, for example, 0.05, the second preset ratio is, for example, 0.15, the third preset ratio is, for example, 0.2, the first value is, for example, 1.05, the second value is, for example, 1.1, the third value is, for example, 1.15, the fourth value is, for example, 1.2, and the preset temperature is, for example, 35 ℃, the driving voltage of the water pump is adjusted according to the difference Icha, the rated current value Ie, and the ambient temperature Tem to compensate for the attenuation during the operation of the water pump, including: when Icha/Ie <0.05, adjusting the driving voltage of the water pump to 1.05 xe; when 0.05< icha/Ie <0.15, adjusting the driving voltage of the water pump to 1.1 x Ie; when 0.15< icha/Ie <0.2, adjusting the driving voltage of the water pump to 1.15 x Ie; when Icha/Ie >0.2 and Tem <35 ℃, adjusting the driving voltage of the water pump to 1.2 xe; when Icha/Ie >0.2 and Tem > =35 ℃, the driving voltage of the water pump is adjusted to Ie.
In one embodiment of the invention, the controller is configured to: when the high water level switch is turned off, the water pump is controlled to stop running, and the compensation flag bit is set to 0.
In a specific embodiment, after the air conditioner is started and operated, when the high water level switch is turned off, the condensed water in the water tank is not much, and the operation of the water pump is not required to be controlled, and at the moment, the driving voltage of the water pump is controlled to be 0V, namely, the water pump is controlled to stop operating.
Next, referring to fig. 6, 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. 6, 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.
Step S20, setting the compensation flag bit of the water pump to be 0.
Step S30, judging whether the high water level switch is closed, if yes, executing step S32, otherwise, executing step S31.
And S31, controlling the water pump to stop running, and setting the compensation flag bit to 0.
And S32, controlling the water pump to operate according to a preset rated voltage value.
Step S40, obtaining the current working current value of the water pump.
Step S50, judging whether the low water level switch is closed, if yes, executing step S60, otherwise, executing step S31.
Step S60, judging whether the current working current value of the water pump is larger than rated current and the compensation flag bit is 0, if yes, executing step S70, otherwise, executing step S40.
In step S70, the compensation flag bit is set to 1, and the current ambient temperature is obtained.
Step S80, calculating the difference between the current working current value and the rated current value.
Step S90, when the ratio of the difference value to the rated current value does not exceed the first preset ratio, step S91 is executed.
In step S91, the product of the rated voltage value and the first value is used as the driving voltage of the water pump.
Step S100, when the ratio of the difference value to the rated current value is between the first preset ratio and the second preset ratio, step S101 is performed.
Step S101, taking the product of the rated voltage value and the second value as the driving voltage of the water pump.
Step S110, when the ratio of the difference value to the rated current value is between the second preset ratio and the third preset ratio, step S111 is performed.
In step S111, the product of the rated voltage value and the third value is used as the driving voltage of the water pump.
Step S120, when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is less than the preset temperature, step S121 is performed.
In step S121, the product of the rated voltage value and the fourth value is used as the driving voltage of the water pump.
Step S130, when the ratio of the difference value to the rated current value exceeds a third preset ratio and the ambient temperature exceeds a preset temperature, step S131 is performed.
Step S131, the rated voltage value is used as the driving voltage of the water pump.
According to the air conditioner provided by the embodiment of the invention, when the low water level switch is closed, whether the water pump is mechanically attenuated is judged through the current working current value of the water pump, if the water pump is mechanically attenuated, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, so that attenuation compensation is carried out on the running process of the water pump, the water pumping effect of the water pump and the water draining effect of the air conditioner can be improved, and further the user experience is improved. Meanwhile, by introducing a water pump protection mechanism of the mobile air conditioner, when the driving voltage of the water pump is adjusted, the rated current value and the current environment temperature of the water pump are taken into consideration, so that the pump body is prevented from being damaged, and the working reliability of the water pump is 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. 7 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. 7, the method comprising the steps of:
and S1, after the air conditioner is started and operated, setting the compensation zone bit of the water pump to 0.
And S2, determining that the high water level switch is closed.
And step S3, controlling the water pump to operate according to a preset rated voltage value, and obtaining the current working current value of the water pump.
And S4, judging whether the water pump is mechanically attenuated or not according to the current working current value and the compensation zone bit when the low water level switch is closed.
And S5, if the water pump is mechanically attenuated, setting the compensation zone bit to be 1, acquiring the current environment temperature, and adjusting the driving voltage of the water pump according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump so as to carry out attenuation compensation on the running process of the water pump.
And S6, if the water pump does not mechanically attenuate, controlling the water pump to operate according to the rated voltage value, controlling the water pump to stop operating until the low water level switch is disconnected, and setting the compensation flag bit to be 0.
In one embodiment of the present invention, determining whether mechanical damping of the water pump occurs according to the current operating current value and the compensation flag comprises: if the current working current value is larger than the rated current value and the compensation flag bit is 0, determining that the water pump is mechanically attenuated, otherwise, determining that the water pump is not mechanically attenuated.
In one embodiment of the present invention, adjusting a driving voltage of a water pump according to a current ambient temperature, a current operation current value of the water pump, and a rated current value of the water pump to perform attenuation compensation for an operation process of the water pump includes: after determining that the mechanical attenuation of the water pump occurs, calculating the difference value between the current working current value and the rated current value; and adjusting the driving voltage of the water pump according to the difference value, the rated current value and the current ambient temperature so as to carry out attenuation compensation on the running process of the water pump.
In one embodiment of the present invention, adjusting the driving voltage of the water pump according to the difference, the rated current value and the ambient temperature to compensate for the attenuation of the operation process of the water pump comprises: when the ratio of the difference value to the rated current value does not exceed a first preset ratio, taking the product of the rated voltage value and the first value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the first preset proportion and the second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and the third preset proportion, taking the product of the rated voltage value and the third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds a third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and the fourth value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds a third preset ratio and the ambient temperature is greater than the preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, and the third numerical value is larger than the second numerical value and smaller than the fourth numerical value.
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, and the compensation flag bit is set to 0.
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 low water level switch is closed, whether the water pump is mechanically attenuated or not is judged through the current working current value of the water pump, if the water pump is mechanically attenuated, the driving voltage of the water pump is adjusted according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, so that attenuation compensation is carried out on the running process of the water pump, the water pumping effect of the water pump and the water draining effect of the air conditioner can be improved, and user experience is further improved. Meanwhile, by introducing a water pump protection mechanism of the mobile air conditioner, when the driving voltage of the water pump is adjusted, the rated current value and the current environment temperature of the water pump are taken into consideration, so that the pump body is prevented from being damaged, and the working reliability of the water pump is 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 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 first 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 first water level threshold value;
a low water level switch arranged in the water tank and used for being closed when the water level of the condensed water reaches a second water level threshold value used for representing the low water level, or being opened when the water level of the condensed water does not reach the second water level threshold value;
the controller is configured to: after the air conditioner is started and operated, setting a compensation zone bit of the water pump to be 0, determining that the high water level switch is closed, controlling the water pump to operate according to a preset rated voltage value, acquiring a current working current value of the water pump, judging whether the water pump is mechanically attenuated according to the current working current value and the compensation zone bit when the low water level switch is closed, setting the compensation zone bit to be 1 if the water pump is mechanically attenuated, acquiring a current environment temperature, calculating a difference value between the current working current value and the rated current value, and taking a product of the rated voltage value and a first value as a driving voltage of the water pump when the ratio of the difference value to the rated current value does not exceed a first preset ratio; when the ratio of the difference value to the rated current value is between the first preset proportion and the second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and a third preset proportion, taking the product of the rated voltage value and a third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and a fourth numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is greater than the preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, the third numerical value is larger than the second numerical value and smaller than the fourth numerical value, so that attenuation compensation is conducted on the running process of the water pump, otherwise, the water pump is controlled to run according to the rated voltage value until the low water level switch is turned off, the water pump is controlled to stop running, and the compensation flag bit is set to be 0.
2. The air conditioner according to claim 1, wherein the controller is specifically configured to:
and if the current working current value is larger than the rated current value and the compensation zone bit is 0, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
3. 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, and setting the compensation zone bit to 0.
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, the compensation zone bit of the water pump is set to 0;
determining that a high water level switch is closed;
controlling the water pump to operate according to a preset rated voltage value, and obtaining a current working current value of the water pump;
when a low water level switch is closed, judging whether mechanical attenuation occurs to the water pump according to the current working current value and the compensation zone bit, if so, setting the compensation zone bit to be 1, acquiring the current environment temperature, calculating the difference value between the current working current value and the rated current value, and taking the product of the rated voltage value and a first value as the driving voltage of the water pump when the ratio of the difference value to the rated current value does not exceed a first preset ratio; when the ratio of the difference value to the rated current value is between the first preset proportion and the second preset proportion, taking the product of the rated voltage value and the second numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value is between the second preset proportion and a third preset proportion, taking the product of the rated voltage value and a third numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is smaller than the preset temperature, taking the product of the rated voltage value and a fourth numerical value as the driving voltage of the water pump; when the ratio of the difference value to the rated current value exceeds the third preset ratio and the ambient temperature is greater than the preset temperature, taking the rated voltage value as the driving voltage of the water pump; the second preset proportion is larger than the first preset proportion and smaller than the third preset proportion, the second numerical value is larger than the first numerical value and smaller than the third numerical value, the third numerical value is larger than the second numerical value and smaller than the fourth numerical value, so that attenuation compensation is conducted on the running process of the water pump, otherwise, the water pump is controlled to run according to the rated voltage value until the low water level switch is turned off, the water pump is controlled to stop running, and the compensation flag bit is set to be 0.
5. The method of claim 4, wherein determining whether mechanical damping of the water pump occurs according to the current operating current value and the compensation flag comprises:
and if the current working current value is larger than the rated current value and the compensation zone bit is 0, determining that the mechanical attenuation of the water pump occurs, otherwise, determining that the mechanical attenuation of the water pump does not occur.
6. 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, and setting the compensation zone bit to 0.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010054164A (en) * | 2008-08-29 | 2010-03-11 | Mitsubishi Electric Corp | Air conditioner and operation method of the air conditioner |
| CN105588180A (en) * | 2014-10-22 | 2016-05-18 | Tcl空调器(中山)有限公司 | Drainage control method for dehumidifier and dehumidifier |
| JP2018096553A (en) * | 2016-12-08 | 2018-06-21 | 株式会社Ｎｔｔファシリティーズ | Cold water circulation system |
| CN111426049A (en) * | 2020-04-13 | 2020-07-17 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN114110922A (en) * | 2020-08-31 | 2022-03-01 | 佛山市万物互联科技有限公司 | Drainage fault control method of air conditioner and air conditioner |
| CN114234359A (en) * | 2021-11-09 | 2022-03-25 | 海信（广东）空调有限公司 | Air conditioner and refrigerant leakage detection method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7735333B2 (en) * | 2005-07-01 | 2010-06-15 | Ming-Li Tso | Thermal compensation system and device there of in heat pump and refrigeration system |
-
2022
- 2022-04-02 CN CN202210342018.4A patent/CN114811872B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010054164A (en) * | 2008-08-29 | 2010-03-11 | Mitsubishi Electric Corp | Air conditioner and operation method of the air conditioner |
| CN105588180A (en) * | 2014-10-22 | 2016-05-18 | Tcl空调器(中山)有限公司 | Drainage control method for dehumidifier and dehumidifier |
| JP2018096553A (en) * | 2016-12-08 | 2018-06-21 | 株式会社Ｎｔｔファシリティーズ | Cold water circulation system |
| CN111426049A (en) * | 2020-04-13 | 2020-07-17 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN114110922A (en) * | 2020-08-31 | 2022-03-01 | 佛山市万物互联科技有限公司 | Drainage fault control method of air conditioner and air conditioner |
| CN114234359A (en) * | 2021-11-09 | 2022-03-25 | 海信（广东）空调有限公司 | Air conditioner and refrigerant leakage detection method thereof |
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