CN114576794A - Air conditioner and heating intelligent control method thereof - Google Patents

Air conditioner and heating intelligent control method thereof Download PDF

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Publication number
CN114576794A
CN114576794A CN202210205345.5A CN202210205345A CN114576794A CN 114576794 A CN114576794 A CN 114576794A CN 202210205345 A CN202210205345 A CN 202210205345A CN 114576794 A CN114576794 A CN 114576794A
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China
Prior art keywords
temperature
air conditioner
indoor environment
compressor
preset
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Granted
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CN202210205345.5A
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Chinese (zh)
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CN114576794B (en
Inventor
张书铭
袁兴建
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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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/37—Resuming operation, e.g. after power outages; Emergency starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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

Abstract

The invention discloses an air conditioner and a heating intelligent control method thereof, wherein the air conditioner comprises: the refrigeration system is used for exchanging the positions of the air suction and exhaust pipes in the refrigeration cycle system so as to heat indoor air by utilizing the evaporator, and comprises a compressor, wherein the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; an indoor environment temperature sensor for detecting an indoor environment temperature; the coil temperature sensor is used for detecting the temperature of the coil of the evaporator; the upper fan is used for adjusting the temperature of the evaporator; the controller is configured to: confirm that the air conditioner heats the operation and the compressor reaches when warm shutdown, acquire the coil pipe temperature and the indoor ambient temperature of evaporimeter, according to coil pipe temperature, indoor ambient temperature and prestore at least one operation in temperature control fan and the compressor in advance to solve under the heating mode compressor because of receiving the unable quick influence of dissipating of the inside heat of box and the problem of unable start-up for a long time.

Description

Air conditioner and heating intelligent control method thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and an intelligent heating control method thereof.
Background
In the air conditioner industry, most air conditioners have a heating function, and users can set the air conditioners to be in a heating mode for heating when the air conditioners are cold, namely, the air conditioners are heated by a heat pump of a compressor and quickly blow hot air. A common split air conditioner heats a copper pipe and transfers the heated copper pipe to an indoor unit through an outdoor unit hung outdoors to blow out hot air, but a mobile air conditioner is equivalent to integrating the split indoor unit and the split outdoor unit into a structural box body for carrying out related loads.
When the heating mode is operated, if the compressor is stopped when reaching the temperature (the ambient temperature is higher than the set temperature), the upper fan is also stopped, so that the originally gathered heat in the box body cannot be dissipated in a short time, the ambient temperature is higher than the set temperature of the air conditioner for a long time, and the condition that the compressor is restarted cannot be met, so that the condition that the compressor cannot be started within a period of time is easy to occur. At present, no mature control method is applied in the industry aiming at the problem so as to solve the problem that the compressor cannot be started for a long time under the heating mode because the compressor cannot be quickly dissipated by the heat in the box body.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide an air conditioner and a heating intelligent control method thereof.
The invention provides an air conditioner, comprising: the refrigeration system is used for exchanging the positions of a suction pipe and an exhaust pipe in the refrigeration cycle system so as to heat indoor air by using an evaporator to realize the heating operation of the air conditioner, and comprises a compressor which is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to a condenser; an indoor environment temperature sensor for detecting an indoor environment temperature; the coil temperature sensor is used for detecting the coil temperature of the evaporator; the upper fan is used for adjusting the temperature of the evaporator; the controller is configured to: and determining that the air conditioner is in heating operation and the compressor is in warm shutdown, acquiring the coil temperature of the evaporator and the indoor environment temperature, and controlling the upper fan and at least one of the compressors to operate according to the coil temperature, the indoor environment temperature and the pre-stored temperature.
In addition, the air conditioner according to the embodiment of the invention may further have the following additional technical features:
further, the controller is configured to: after the compressor is determined to be shut down when the temperature of the coil of the evaporator is judged to be lower than a first preset temperature, controlling the upper fan to be shut down; when the fact that the shutdown time of the upper fan reaches a first preset time is determined, executing an obtaining step, wherein the obtaining step comprises the following steps: acquiring the current indoor environment temperature and the current coil temperature of the evaporator; and controlling the operation of the upper fan and the compressor according to the current difference value between the indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator.
Further, the controller is further configured to: and after the compressor is determined to be stopped when the temperature of the coil of the evaporator is determined to be higher than or equal to the first preset temperature, controlling the upper fan to continuously operate.
Further, the controller is configured to: when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate; and when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the coil temperature of the evaporator is less than the difference between the set temperature of the air conditioner and the preset correction value, controlling the compressor and the upper fan to operate.
Further, when the indoor ambient temperature with the difference of prestoring the temperature is less than the second and predetermines the temperature, just the indoor ambient temperature is greater than or equal to the air conditioner and sets for the temperature and predetermines the difference of revised value when, or, works as the indoor ambient temperature with the difference of prestoring the temperature is greater than the second is predetermine the temperature, and is less than the third and predetermines the temperature, just the indoor ambient temperature is greater than or equal to the air conditioner set for the temperature with when predetermineeing the sum of revised value, perhaps, works as the indoor ambient temperature with the difference of prestoring the temperature is greater than the third is predetermine the temperature, and is current the coil pipe temperature of evaporimeter is greater than or equal to the air conditioner set for the temperature with when predetermineeing the difference of revised value, return the execution the step of obtaining.
Further, the pre-stored temperature is the corresponding indoor environment temperature when the shutdown time of the upper fan reaches a second preset time, and the second preset time is less than the first preset time.
Further, the controller is configured to: and when the indoor environment temperature is greater than the sum of the set temperature of the air conditioner and a preset correction value, determining that the compressor is stopped at a temperature.
According to the air conditioner provided by the embodiment of the invention, when the air conditioner is determined to be in heating operation and the compressor is in warm stop, the coil temperature of the evaporator and the indoor environment temperature are respectively obtained by utilizing the indoor environment temperature sensor and the coil temperature sensor, and at least one of the upper fan and the compressor is controlled to operate according to the coil temperature, the indoor environment temperature and the prestored temperature. Wherein, prestore the temperature can be the ambient temperature after a period of time in the box, from this, the coil pipe temperature is considered comprehensively, three kinds of factors of indoor ambient temperature and temperature of prestoring, make the heat dissipation condition to in the box judge more accurately, and then do benefit to and carry out more accurate control to the start-up of compressor, the heat that can furthest reduce the internal gathering of air conditioner box is to current indoor ambient temperature's influence, make after the compressor appears reaching the warm shutdown, when indoor ambient temperature is less than the air conditioner and sets for the temperature and predetermines the revised value, the compressor of air conditioner can normally start, the problem that the compressor can't start for a long time because of the influence that receives the unable quick dissipation of the inside heat of box under the mode of heating is solved.
Aiming at the existing problems, the invention also provides a heating intelligent control method of the air conditioner, which comprises the following steps: when the air conditioner is determined to be in heating operation and the compressor is stopped when the temperature reaches the temperature, acquiring the coil temperature of an evaporator and the indoor environment temperature; and controlling at least one of the upper fan and the compressor to operate according to the coil temperature, the indoor environment temperature and the pre-stored temperature.
In addition, the intelligent heating control method of the air conditioner according to the embodiment of the invention may further have the following additional technical features:
further, controlling at least one of the upper fan and the compressor to operate according to the coil temperature, the indoor ambient temperature and the pre-stored temperature, including: after the compressor is determined to be stopped when the temperature of the compressor reaches the temperature, when the temperature of a coil pipe of the evaporator is judged to be lower than a first preset temperature, the upper fan is controlled to be stopped; when the fact that the shutdown time of the upper fan reaches a first preset time is determined, executing an obtaining step, wherein the obtaining step comprises the following steps: acquiring the current indoor environment temperature and the current coil temperature of the evaporator; controlling the operation of the upper fan and the compressor according to the difference value between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator; and after the compressor is determined to be stopped when the temperature of the coil of the evaporator is determined to be higher than or equal to the first preset temperature, controlling the upper fan to continuously operate.
Further, controlling the operation of the upper air blower and the compressor according to the difference between the current indoor environment temperature and the pre-stored temperature, including: when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is larger than or equal to the difference value between the air conditioner set temperature and a preset correction value, returning to execute the acquiring step; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is greater than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to execute the acquiring step; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the temperature of the coil of the evaporator is less than the difference value between the set temperature of the air conditioner and the preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the current coil temperature of the evaporator is larger than or equal to the difference value between the set temperature of the air conditioner and the preset correction value, the heating intelligent control method of the air conditioner returns to execute the acquiring step. Wherein, prestore the temperature can be the ambient temperature after a period of time in the box, therefore, the coil pipe temperature is taken into comprehensive consideration, three kinds of factors of indoor ambient temperature and prestore temperature, make the heat dissipation condition to in the box judge more accurately, and then do benefit to and carry out more accurate control to the start-up of compressor, the heat that can furthest reduce the internal gathering of air conditioner box is to current indoor ambient temperature's influence, make after the compressor appears reaching the warm shutdown, when indoor ambient temperature is less than the air conditioner and sets for the temperature and predetermines the revised value, the compressor of air conditioner can normal start, in order to solve under the mode of heating the compressor because of receiving the unable quick start-up's of the influence of the inside heat of box problem for a long time.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart for intelligently controlling heating of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a heating intelligent control method of an air conditioner according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The air conditioner of the present invention performs a refrigeration 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 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 can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the 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 serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
In the air conditioner of the present invention, during heating operation, a high-temperature and high-pressure refrigerant discharged from a compressor flows into a condenser. In this case, the condenser functions as a radiator. Therefore, the refrigerant heats the indoor air by heat exchange with the indoor air as it flows through the condenser, and is cooled by heat dissipation itself. The low-temperature high-pressure refrigerant deprived of the temperature by the condenser is decompressed by the expansion valve and changes into a low-temperature low-pressure refrigerant. The refrigerant flowing into the evaporator through the expansion valve is heated by heat exchange with outdoor air. Then, the gas refrigerant, which is mainly low in temperature, is drawn from the evaporator into the compressor via the accumulator.
An air conditioner and a heating intelligent control method thereof according to an embodiment of the present invention will be described with reference to fig. 1 to 3.
Fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, an air conditioner includes: a refrigeration system 10, an indoor ambient temperature sensor 20, a coil temperature sensor 30, an upper fan 40, and a controller 50. The refrigeration system 10 is used to change the positions of the air intake and exhaust pipes in the refrigeration cycle system, so as to heat the indoor air by the evaporator, thereby implementing the heating operation of the air conditioner. Specifically, the refrigeration system 10 includes a compressor 101, and the compressor 101 is configured to perform an operation of compressing a low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharging the refrigerant gas to a condenser. The indoor environment temperature sensor 20 is used for detecting the indoor environment temperature; the coil temperature sensor 30 is used for detecting the coil temperature of the evaporator; the upper fan 40 is used for adjusting the temperature of the evaporator; the controller 50 is configured to: when the air conditioner is determined to be in heating operation and the compressor 101 is in warm-stop state, the coil temperature of the evaporator and the indoor environment temperature are respectively obtained by using the indoor environment temperature sensor 20 and the coil temperature sensor 30, so that at least one of the upper fan and the compressor is controlled to operate according to the coil temperature, the indoor environment temperature and the prestored temperature.
Specifically, it is determined that the air conditioner operates in the heating mode, the indoor ambient temperature gradually increases, and when the indoor ambient temperature is greater than the set temperature of the air conditioner and a preset correction value, for example, 1 ℃, the compressor 101 may be in a warm stop state, otherwise, the compressor 101 operates and the upper fan 40 operates. When the compressor 101 is stopped at a temperature, the coil temperature of the evaporator and the indoor environment temperature are obtained, and at least one of the upper fan 40 and the compressor 101 is controlled to operate according to the coil temperature and the indoor environment temperature. Wherein, prestore the temperature can be the interior ambient temperature after a period of time of box, therefore, the coil pipe temperature is taken into comprehensive consideration, indoor ambient temperature and three kinds of factors of the temperature of prestoring, make the heat dissipation condition to in the box judge more accurately, and then do benefit to the start-up to the compressor and carry out more accurate control, make to appear reaching the temperature shutdown back at compressor 101, the heat of originally gathering in the air conditioner box gives off in the short time, when indoor ambient temperature is less than the air conditioner and sets for the temperature and predetermines the corrective value, the compressor 101 of air conditioner can normal start, in order to solve under the heating mode compressor because of the unable quick dissipation's of box inside heat influence and the problem that can't start for a long time.
In one embodiment of the invention, the control appliance is configured to: after the compressor is determined to be stopped when the temperature of the compressor reaches the preset temperature, judging whether the temperature of a coil of an evaporator is lower than a first preset temperature or not, if so, controlling the upper fan to stop, and acquiring the current indoor environment temperature and the current temperature of the coil of the evaporator when the stop time of the upper fan is determined to reach the first preset time; and controlling the operation of the upper fan and the compressor according to the difference value between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator. Otherwise, controlling the upper fan to continuously operate until the temperature of the coil of the evaporator is lower than a first preset temperature. Specifically, the first preset time can be obtained by timing with a timer, that is, after the upper fan is stopped, the timer is controlled to start timing, and when the timing time reaches the first preset time, the difference between the current indoor environment temperature and the pre-stored temperature is obtained; and controlling the operation of the upper fan and the compressor according to the difference value of the current indoor environment temperature and the pre-stored temperature.
Particularly, when the coil pipe temperature of evaporimeter was less than first when predetermineeing the temperature, the fan was shut down in the control, can prevent that the temperature of evaporimeter from crossing excessively and blowing out cold wind, promotes user experience. When the machine halt of last fan is long to reach first preset time after, think that the heat of the original gathering has fully distributed in the air conditioner box, at this moment, can be according to the operation of fan and compressor in the difference control of current indoor ambient temperature and the temperature of prestoring, in order furthest to reduce the influence of the heat of gathering in the air conditioner box to current indoor ambient temperature, make after the compressor appears reaching the warm machine halt, when indoor ambient temperature is less than air conditioner settlement temperature and preset the revised value, the compressor of air conditioner can normal start, in order to solve under the heating mode compressor because of receiving the unable quick dissipation's of the inside heat of box influence and the problem that can't start for a long time.
In a specific embodiment, the first preset temperature is 28 ℃ for example, the first preset time is 150s for example, after the compressor is determined to be stopped when reaching the temperature, the upper fan is controlled to be stopped until the temperature of the coil of the evaporator is less than 28 ℃, and when the stop time of the upper fan is determined to reach 150s, the difference value between the current indoor environment temperature and the pre-stored temperature is obtained; and controlling the operation of the upper fan and the compressor according to the difference value of the current indoor environment temperature and the pre-stored temperature.
In one embodiment of the invention, the control appliance is configured to: and determining that the compressor is stopped when reaching the temperature and the temperature of a coil of the evaporator is lower than a first preset temperature, namely controlling the upper fan to stop, and controlling the operation of the upper fan and the compressor to comprise three conditions according to the difference value of the indoor environment temperature and the pre-stored temperature. The first condition is that when the difference value of the indoor environment temperature and the pre-stored temperature is less than a second preset temperature and the indoor environment temperature is less than the difference between the set temperature of the air conditioner and a preset correction value, the compressor and the upper fan are controlled to operate, or when the difference value of the indoor environment temperature and the pre-stored temperature is less than the second preset temperature and the indoor environment temperature is greater than or equal to the difference between the set temperature of the air conditioner and the preset correction value, the current indoor environment temperature and the coil temperature of the evaporator are obtained again, and the upper fan and the compressor are controlled to operate according to the difference value of the current indoor environment temperature and the pre-stored temperature; the second situation is that when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than the third preset temperature and the indoor environment temperature is less than the sum of the set temperature of the air conditioner and the preset correction value, the compressor and the upper fan are controlled to operate, or when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than the third preset temperature and the indoor environment temperature is greater than or equal to the sum of the set temperature of the air conditioner and the preset correction value, the current indoor environment temperature and the coil temperature of the evaporator are obtained again, and the upper fan and the compressor are controlled to operate according to the difference value between the current indoor environment temperature and the pre-stored temperature; and in the third situation, when the difference value between the indoor environment temperature and the pre-stored temperature is greater than a third preset temperature and the temperature of the coil of the evaporator is less than the difference between the set temperature of the air conditioner and the preset correction value, the compressor and the upper fan are controlled to operate, or when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the temperature of the coil of the evaporator is greater than or equal to the difference between the set temperature of the air conditioner and the preset correction value, the current indoor environment temperature and the temperature of the coil of the evaporator are obtained again, and the operation of the upper fan and the compressor is controlled according to the difference value between the current indoor environment temperature and the pre-stored temperature.
Specifically, when the difference between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature, the fact that the heat dissipation condition of the air conditioner box is good is indicated, the indoor environment temperature collected by the indoor environment temperature sensor is not affected by the heat of the air conditioner box, the indoor environment temperature is continuously monitored until the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and the preset correction value, the compressor and the upper fan are controlled to operate, and the problem that the compressor cannot be started for a long time due to the fact that the compressor cannot be quickly dissipated by the heat in the box in the heating mode is solved. When the difference between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and is less than the third preset temperature, the fact that the heat of the air conditioner box body is not completely dissipated is explained, the indoor environment temperature collected by the indoor environment temperature sensor is influenced by the heat of the air conditioner box body, the running conditions of the compressor and the upper fan need to be reduced, the influence of the heat of the air conditioner box body on the indoor environment temperature is compensated, namely, the indoor environment temperature is continuously monitored, and when the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, the compressor and the upper fan are controlled to run, so that the problem that the compressor cannot be started for a long time due to the influence of the heat inside the box body cannot be dissipated quickly in the heating mode is solved. When the difference between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature, the heat of the air conditioner box body is more, the short time is difficult to completely dissipate, the indoor environment temperature collected by the indoor environment temperature sensor is greatly influenced by the heat of the air conditioner box body, the compressor and the upper fan are required to be controlled according to the evaporator temperature at the moment, the evaporator temperature is continuously monitored, the operation of the compressor and the upper fan is controlled until the coil temperature of the evaporator is less than the difference between the air conditioner set temperature and the preset correction value, and the problem that the compressor cannot be started for a long time due to the influence of the heat inside the box body cannot be quickly dissipated in the heating mode is solved.
In an embodiment, the second preset temperature is, for example, 0 ℃, the third preset temperature is, for example, 2 ℃, the preset correction value is, for example, 1 ℃, it is determined that the compressor is shut down when the temperature of the coil of the evaporator is less than 28 ℃, and when the difference between the indoor ambient temperature and the pre-stored temperature is less than 0 ℃ and the indoor ambient temperature is less than the difference between the air conditioner set temperature and 1 ℃, the compressor and the upper fan are controlled to operate; when the difference between the indoor environment temperature and the pre-stored temperature is more than 0 ℃ and less than 2 ℃, and the indoor environment temperature is less than the sum of the set temperature of the air conditioner and 1 ℃, controlling the compressor and the upper fan to operate; and when the difference value between the indoor environment temperature and the pre-stored temperature is more than 2 ℃, and the temperature of the coil of the evaporator is less than the difference between the set temperature of the air conditioner and 1 ℃, controlling the compressor and the upper fan to operate.
In an embodiment of the invention, the pre-stored temperature is an indoor environment temperature corresponding to the time when the shutdown time of the air supply fan reaches the second preset time. And the second preset time is less than the first preset time.
Specifically, it is determined that the compressor is stopped when the temperature is reached, the temperature of the coil of the evaporator is lower than a first preset temperature, the upper fan is controlled to stop, the current indoor environment temperature is obtained when the stop time of the upper fan reaches a second preset time, and the indoor environment temperature is stored as a pre-stored temperature. Specifically, the second preset time can be obtained by timing with a timer, that is, after the upper fan is stopped, the timer is controlled to start timing, when the timing time reaches a second preset time, the current indoor environment temperature is acquired and stored as a pre-stored temperature, so that when the shutdown time of the air supply fan reaches a first preset time, the operation of the upper fan and the compressor can be controlled according to the difference value between the current indoor environment temperature and the pre-stored temperature, the influence of the heat accumulated in the air conditioner box body on the current indoor environment temperature is reduced to the maximum extent, so that after the compressor is shut down when reaching the temperature, when the indoor environment temperature is lower than the set temperature and preset correction value of the air conditioner, the compressor of the air conditioner can be started normally, the problem that the compressor cannot be started for a long time due to the fact that the compressor cannot be quickly dissipated by heat inside the box body in the heating mode is solved.
In a specific embodiment, the second preset time is, for example, 2s, it is determined that the compressor is shut down when the temperature of the coil of the evaporator is lower than the first preset temperature, for example, 28 ℃, that is, after the upper air blower is controlled to be shut down, when the shutdown duration of the upper air blower reaches 2s, the current indoor ambient temperature is obtained, and the indoor ambient temperature is stored as the pre-stored temperature.
In one embodiment of the invention, the control appliance is configured to: and when the indoor environment temperature is greater than the sum of the set temperature of the air conditioner and the preset correction value, determining that the compressor is stopped when the temperature is reached.
In a specific embodiment, the air conditioner set temperature can be set by a user through a remote controller or a mobile terminal APP, and when the indoor environment temperature is greater than the sum of the air conditioner set temperature and a preset correction value, it is determined that the compressor is stopped at a warm state. For example, if the set temperature is 20 ℃ for example and the preset correction value is 1 ℃ for example, it is determined that the compressor is in warm stop when the indoor ambient temperature is greater than 21 ℃. When the compressor is stopped when the temperature reaches the set temperature, the controller respectively acquires the coil temperature of the evaporator and the indoor environment temperature by using the indoor environment temperature sensor and the coil temperature sensor, so that at least one of the upper fan and the compressor is controlled to operate according to the coil temperature and the indoor environment temperature.
Fig. 2 is a flowchart illustrating intelligent heating control of an air conditioner according to an embodiment of the present invention, and is a flowchart illustrating intelligent heating control of an air conditioner according to an embodiment of the present invention.
In step S10, the air conditioner operates in the heating mode.
And step S20, judging whether the indoor environment temperature is larger than the sum of the set temperature and the preset correction value, if so, executing step S30, otherwise, executing step S21.
And step S21, controlling the operation of the upper fan and the compressor.
And step S30, controlling the compressor to stop.
Step S40, determining whether the coil temperature of the evaporator is less than a first preset temperature, if yes, performing step S50, otherwise, performing step S40.
And step S50, controlling the upper fan to stop.
And step S60, judging whether the shutdown time of the air supply fan reaches a second preset time, if so, executing step S70, otherwise, executing step S60.
And step S70, acquiring and saving the indoor environment temperature as a pre-stored temperature.
And step S80, judging whether the shutdown time of the upper fan reaches a first preset time, if so, executing step S90, otherwise, executing step S80.
Step S90, acquiring the current indoor ambient temperature and the coil temperature of the evaporator.
And S100, controlling the operation of the upper fan and the compressor according to the difference value between the current indoor environment temperature and the pre-stored temperature.
Step S110, determining whether the difference between the indoor ambient temperature and the pre-stored temperature is less than a second preset temperature, and executing step S111.
Step S111, determining whether the indoor ambient temperature is less than the difference between the air conditioner set temperature and the preset correction value, if so, performing step S140, otherwise, performing step S90.
In step S120, the difference between the indoor ambient temperature and the pre-stored temperature is greater than the second preset temperature and less than the third preset temperature, and step S121 is executed.
And step S121, judging whether the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, if so, executing step S140, otherwise, executing step S90.
In step S130, the difference between the indoor ambient temperature and the pre-stored temperature is greater than a third preset temperature, and step S131 is performed.
Step S131, judging whether the temperature of the coil of the evaporator is smaller than the difference between the set temperature of the air conditioner and a preset correction value, if so, executing step S140, otherwise, executing step S90.
According to the air conditioner implemented by the invention, when the air conditioner is determined to be in heating operation and the compressor is in warm shutdown, the coil temperature of the evaporator and the indoor environment temperature are respectively obtained by using the indoor environment temperature sensor and the coil temperature sensor, and at least one of the upper fan and the compressor is controlled to operate according to the coil temperature and the indoor environment temperature, so that the influence of heat accumulated in the box body of the air conditioner on the current indoor environment temperature can be reduced to the maximum extent, after the compressor is in warm shutdown, when the indoor environment temperature is lower than the set temperature and the preset correction value of the air conditioner, the compressor of the air conditioner can be normally started, and the problem that the compressor cannot be started for a long time due to the influence of the heat in the box body, which cannot be quickly dissipated, in a heating mode is solved.
A further embodiment of the present invention also discloses a heating intelligent control method of an air conditioner, and fig. 3 is a flowchart of the heating intelligent control method of the air conditioner according to an embodiment of the present invention. As shown in fig. 3, an intelligent control method for heating of an air conditioner includes the following steps:
and step S1, acquiring the coil temperature of the evaporator and the indoor environment temperature when the air conditioner is determined to be in heating operation and the compressor is stopped when reaching the temperature.
And S2, controlling at least one of the upper fan and the compressor to operate according to the temperature of the coil pipe, the indoor environment temperature and the prestored temperature.
In one embodiment of the present invention, controlling at least one of the upper fan and the compressor to operate according to the coil temperature, the indoor ambient temperature, and the pre-stored temperature includes: after the compressor is determined to be stopped when the temperature of the coil of the evaporator is judged to be lower than a first preset temperature, controlling the upper fan to stop; when the shutdown time of the upper fan is determined to reach a first preset time, acquiring a difference value between the current indoor environment temperature and the current coil temperature of the evaporator; controlling the operation of an upper fan and a compressor according to the difference value between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator; and after the compressor is determined to be stopped when the temperature of the coil of the evaporator is determined to be higher than or equal to the first preset temperature, controlling the upper fan to continuously operate.
In an embodiment of the present invention, the method for intelligently controlling heating of an air conditioner further includes: and after the compressor is determined to be stopped when reaching the temperature, when the temperature of the coil pipe of the evaporator is judged to be greater than or equal to a first preset temperature, controlling the upper fan to continuously operate.
In one embodiment of the present invention, controlling the operation of the upper fan and the compressor according to the difference between the current indoor ambient temperature and the pre-stored temperature comprises: when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is larger than or equal to the difference value between the air conditioner set temperature and a preset correction value, returning to execute the acquiring step; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than a second preset temperature and less than a third preset temperature, and the indoor environment temperature is less than the sum of the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is greater than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to execute the acquiring step; when the difference value between the indoor environment temperature and the pre-stored temperature is greater than a third preset temperature, and the temperature of the coil of the evaporator is less than the difference value between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate; and when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the current coil temperature of the evaporator is greater than or equal to the difference between the set temperature of the air conditioner and the preset correction value, returning to execute the acquiring step.
In an embodiment of the present invention, the pre-stored temperature is an indoor environment temperature corresponding to a second preset time when the shutdown time of the air supply blower reaches the second preset time, and the second preset time is less than the first preset time.
In one embodiment of the invention, the control appliance is configured to: and when the indoor environment temperature is greater than the sum of the set temperature of the air conditioner and the preset correction value, determining that the compressor is stopped when reaching the temperature.
It should be noted that, when the heating control is performed by the intelligent heating control method for an air conditioner according to the embodiment of the present invention, a specific implementation manner of the intelligent heating control method for an air conditioner is similar to a specific implementation manner of the control method for a controller of an air conditioner according to the above embodiment of the present invention, and please refer to the description of the air conditioner part specifically, and details are not repeated here in order to reduce redundancy.
According to the intelligent heating control method of the air conditioner, when the air conditioner is determined to be in heating operation and the compressor is in warm shutdown, the coil temperature and the indoor environment temperature of the evaporator are respectively obtained by the indoor environment temperature sensor and the coil temperature sensor, and at least one of the upper fan and the compressor is controlled to operate according to the coil temperature and the indoor environment temperature, so that the influence of heat accumulated in the box body of the air conditioner on the current indoor environment temperature can be reduced to the maximum extent, after the compressor is in warm shutdown, when the indoor environment temperature is lower than the set temperature and the preset correction value of the air conditioner, the compressor of the air conditioner can be normally started, and the problem that the compressor cannot be started for a long time due to the influence of the heat in the box body, under the heating mode, is solved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air conditioner, comprising:
the refrigeration system is used for exchanging the positions of a suction pipe and an exhaust pipe in the refrigeration cycle system so as to heat indoor air by using an evaporator to realize the heating operation of the air conditioner, and comprises a compressor which is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to a condenser;
an indoor environment temperature sensor for detecting an indoor environment temperature;
the coil temperature sensor is used for detecting the coil temperature of the evaporator;
the upper fan is used for adjusting the temperature of the evaporator;
the controller is configured to:
and determining that the air conditioner is in heating operation and the compressor is in warm shutdown, acquiring the coil temperature of the evaporator and the indoor environment temperature, and controlling the upper fan and at least one of the compressors to operate according to the coil temperature, the indoor environment temperature and the pre-stored temperature.
2. The air conditioner according to claim 1, wherein the control appliance body is configured to:
after the compressor is determined to be shut down when the temperature of the coil of the evaporator is judged to be lower than a first preset temperature, controlling the upper fan to be shut down;
when the fact that the shutdown time of the upper fan reaches a first preset time is determined, executing an obtaining step, wherein the obtaining step comprises the following steps: acquiring the current indoor environment temperature and the current coil temperature of the evaporator;
and controlling the operation of the upper fan and the compressor according to the current difference value between the indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator.
3. The air conditioner of claim 2, wherein the controller is further configured to:
and after the compressor is determined to be stopped when the temperature of the coil of the evaporator is determined to be higher than or equal to the first preset temperature, controlling the upper fan to continuously operate.
4. The air conditioner according to claim 2, wherein the control appliance body is configured to:
when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate;
when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate;
and when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the coil temperature of the evaporator is less than the difference between the set temperature of the air conditioner and the preset correction value, controlling the compressor and the upper fan to operate.
5. The air conditioner according to claim 2, wherein the control appliance body is configured to:
when the indoor environment temperature with the difference of prestoring the temperature is less than the second and predetermines the temperature, just the indoor environment temperature is more than or equal to the air conditioner and sets for the difference of temperature and predetermineeing the correction value, perhaps, works as the indoor environment temperature with the difference of prestoring the temperature is greater than the second is predetermine the temperature, and is less than the third and predetermines the temperature, just the indoor environment temperature is more than or equal to the air conditioner set for the temperature with predetermine the sum of correction value, perhaps, works as the indoor environment temperature with the difference of prestoring the temperature is greater than the third is predetermine the temperature, and is current the coil pipe temperature of evaporimeter is greater than or equal to the air conditioner set for the temperature with when predetermineeing the difference of correction value, return the execution the step of acquireing.
6. The air conditioner according to any one of claims 1 to 5, wherein the pre-stored temperature is an indoor ambient temperature corresponding to a second preset time when the shutdown time of the upper fan reaches, and the second preset time is less than the first preset time.
7. The air conditioner according to claim 1, wherein the control appliance body is configured to: and when the indoor environment temperature is greater than the sum of the set temperature of the air conditioner and a preset correction value, determining that the compressor is stopped at a temperature.
8. An intelligent control method for heating of an air conditioner is characterized by comprising the following steps:
when the air conditioner is determined to be in heating operation and the compressor is stopped when reaching the temperature, acquiring the coil temperature of the evaporator and the indoor environment temperature;
and controlling at least one of the upper fan and the compressor to operate according to the coil temperature, the indoor environment temperature and the pre-stored temperature.
9. The intelligent control method for heating of an air conditioner according to claim 8, wherein controlling at least one of an upper fan and a compressor to operate according to the coil temperature, the indoor environment temperature and a pre-stored temperature comprises:
after the compressor is determined to be shut down when the temperature of the coil of the evaporator is judged to be lower than a first preset temperature, controlling the upper fan to be shut down;
when the fact that the shutdown time of the upper fan reaches a first preset time is determined, executing an obtaining step, wherein the obtaining step comprises the following steps: acquiring the current indoor environment temperature and the current coil temperature of the evaporator;
controlling the operation of the upper fan and the compressor according to the current difference value between the indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator;
and after the compressor is determined to be stopped when the temperature of the coil of the evaporator is determined to be higher than or equal to the first preset temperature, controlling the upper fan to continuously operate.
10. The intelligent control method for heating of an air conditioner according to claim 8,
according to the present difference control of indoor ambient temperature with the temperature of prestoring go up the fan with the operation of compressor includes:
when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and a preset correction value, controlling the compressor and the upper fan to operate;
when the difference value between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is larger than or equal to the difference between the air conditioner set temperature and a preset correction value, returning to execute the acquiring step;
when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate;
when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and less than a third preset temperature, and the indoor environment temperature is greater than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to execute the acquiring step;
when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the temperature of the coil of the evaporator is less than the difference value between the set temperature of the air conditioner and the preset correction value, controlling the compressor and the upper fan to operate;
and when the difference value between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature and the current coil temperature of the evaporator is greater than or equal to the difference between the set temperature of the air conditioner and the preset correction value, returning to execute the acquiring step.
CN202210205345.5A 2022-03-02 2022-03-02 Air conditioner and heating intelligent control method thereof Active CN114576794B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016014525A (en) * 2015-10-26 2016-01-28 ダイキン工業株式会社 Air conditioner
CN113137694A (en) * 2021-04-14 2021-07-20 宁波奥克斯电气股份有限公司 Heating control method and device of air conditioner and air conditioner
CN113203167A (en) * 2021-04-27 2021-08-03 宁波奥克斯电气股份有限公司 Air conditioner control method and device and air conditioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016014525A (en) * 2015-10-26 2016-01-28 ダイキン工業株式会社 Air conditioner
CN113137694A (en) * 2021-04-14 2021-07-20 宁波奥克斯电气股份有限公司 Heating control method and device of air conditioner and air conditioner
CN113203167A (en) * 2021-04-27 2021-08-03 宁波奥克斯电气股份有限公司 Air conditioner control method and device and air conditioner

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