CN114576794B - 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
CN114576794B
CN114576794B CN202210205345.5A CN202210205345A CN114576794B CN 114576794 B CN114576794 B CN 114576794B CN 202210205345 A CN202210205345 A CN 202210205345A CN 114576794 B CN114576794 B CN 114576794B
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China
Prior art keywords
temperature
indoor environment
preset
air conditioner
compressor
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CN202210205345.5A
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Chinese (zh)
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CN114576794A (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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Priority to CN202210205345.5A priority Critical patent/CN114576794B/en
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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

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

Abstract

The invention discloses an air conditioner and a heating intelligent control method thereof, wherein the air conditioner comprises the following components: the refrigerating system is used for exchanging the positions of the air suction pipe and the exhaust pipe in the refrigerating circulation system so as to heat indoor air by utilizing the evaporator and comprises a compressor, wherein 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; an indoor environment temperature sensor for detecting an indoor environment temperature; a coil temperature sensor for detecting a coil temperature of the evaporator; the upper fan is used for adjusting the temperature of the evaporator; the controller is configured to: when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator are obtained, 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 pre-stored temperature, so that the problem that the compressor cannot be started for a long time due to the influence that the heat in the box body cannot be rapidly dissipated in a heating mode is solved.

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 a heating intelligent control method thereof.
Background
In the air conditioner industry, most air conditioners have heating functions, and users can set the air conditioners into a heating mode for heating when the air conditioner is cold, namely, the air conditioners heat through a heat pump of a compressor, and hot air is blown out rapidly. The conventional split air conditioner heats the copper pipe through the outdoor unit hung outside and transmits the copper pipe to the indoor unit so as to blow out hot air, but the mobile air conditioner is equivalent to integrating the split indoor unit and the outdoor unit into a structural box for carrying out related loads.
When the heating mode is operated, if the compressor is stopped when reaching the temperature (the ambient temperature is greater than the set temperature), the upper fan is also stopped, so that the originally accumulated heat in the box body cannot be emitted 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, and therefore the condition that the compressor cannot be started in a period of time easily occurs. At present, a set of mature control method is not applied to solve the problem that the compressor cannot be started for a long time under the heating mode because the compressor cannot be rapidly dissipated by the heat in the box body.
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 heating intelligent control method thereof.
The invention provides an air conditioner, comprising: the refrigerating system is used for exchanging the positions of the air suction pipe and the air discharge pipe in the refrigerating circulation system so as to heat indoor air by utilizing the evaporator to realize heating operation of the air conditioner, and comprises a compressor 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; an indoor environment temperature sensor for detecting an indoor environment temperature; a coil temperature sensor for detecting a coil temperature of the evaporator; the upper fan is used for adjusting the temperature of the evaporator; the controller is configured to: and when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, 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.
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: after the temperature reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be smaller than a first preset temperature, the upper fan is controlled to stop; when the downtime of the upper fan reaches a first preset time, executing an acquisition step, wherein the acquisition 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 difference between the current 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 temperature-reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be greater than or equal to the first preset temperature, the upper fan is controlled to continuously run.
Further, the controller is specifically configured to: when the difference 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 air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan; and when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan.
Further, when the difference between the indoor environment temperature and the pre-stored temperature is smaller than a second preset temperature and the indoor environment temperature is greater than or equal to the difference between the air conditioner set temperature and the preset correction value, or when the difference between the indoor environment temperature and the pre-stored temperature is greater than the second preset temperature and smaller 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, or when the difference 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 air conditioner set temperature and the preset correction value, the acquiring step is performed back.
Further, the pre-stored temperature is an indoor environment temperature corresponding to the time when the shutdown time of the upper fan reaches a second preset time, and the second preset time is smaller than the first preset time.
Further, the controller is specifically configured to: and when the indoor environment temperature is greater than the sum of the air conditioner set temperature and the preset correction value, determining that the compressor reaches Wen Tingji.
According to the air conditioner provided by the embodiment of the invention, when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator are respectively acquired 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, the indoor environment temperature and the pre-stored temperature. The temperature pre-stored can be the ambient temperature after a period of time in the box body, thereby, three factors of coil pipe temperature, indoor ambient temperature and pre-stored temperature are comprehensively considered, the heat dissipation condition in the box body is judged more accurately, and then more accurate control is carried out on the start-up of the compressor, the influence of the heat gathered in the air conditioner box body on the current indoor ambient temperature can be reduced to the greatest extent, after the compressor stops when the temperature of the air conditioner is reached, when the indoor ambient temperature is smaller than the air conditioner set temperature and the preset correction value, the compressor of the air conditioner can be started normally, and the problem that the compressor cannot be started for a long time due to the influence that the heat in the box body cannot be dissipated rapidly in a heating mode is solved.
The invention also provides an intelligent heating control method of the air conditioner, aiming at the problems, comprising the following steps: when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator are obtained; 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 heating intelligent control method of the air conditioner according to the embodiment of the invention can also have the following additional technical characteristics:
further, controlling operation of at least one of the upper fan and the compressor according to the coil temperature, the indoor ambient temperature and a pre-stored temperature, comprising: after the temperature reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be smaller than a first preset temperature, the upper fan is controlled to stop; when the downtime of the upper fan reaches a first preset time, executing an acquisition step, wherein the acquisition 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 between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator; and after the temperature-reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be greater than or equal to the first preset temperature, the upper fan is controlled to continuously run.
Further, controlling the operation of the upper blower and the compressor according to the difference between the current indoor environment temperature and the pre-stored temperature, including: when the difference 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 air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate; when the difference 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 the preset correction value, returning to execute the acquisition step; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is larger than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to the step of acquiring; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate; when the difference 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 air conditioner set temperature and the preset correction value, returning to execute the obtaining step according to the heating intelligent control method of the air conditioner, and when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, respectively obtaining the coil temperature and the indoor environment temperature of the evaporator by using an indoor environment temperature sensor and a coil temperature sensor, and controlling at least one of the upper fan and the compressor to operate according to the coil temperature and the indoor environment temperature. The temperature pre-stored can be the ambient temperature after a period of time in the box body, thereby, three factors of coil pipe temperature, indoor ambient temperature and pre-stored temperature are comprehensively considered, the heat dissipation condition in the box body is judged more accurately, and then more accurate control is carried out on the start-up of the compressor, the influence of the heat gathered in the air conditioner box body on the current indoor ambient temperature can be reduced to the greatest extent, after the compressor stops when the temperature of the air conditioner is reached, when the indoor ambient temperature is smaller than the air conditioner set temperature and the preset correction value, the compressor of the air conditioner can be started normally, and the problem that the compressor cannot be started for a long time due to the influence that the heat in the box body cannot be dissipated rapidly in a heating mode is solved.
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 a heating intelligent control 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 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.
In the present invention, during heating operation, 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 flows through the condenser to heat the indoor air by heat exchange with the indoor air, and is cooled by self-heat radiation. The low-temperature high-pressure refrigerant whose temperature is removed by the condenser is depressurized by the expansion valve to be changed into a low-temperature low-pressure refrigerant. The refrigerant flowing into the evaporator through the expansion valve is heated by heat exchange with the outdoor air. The primarily low temperature gaseous refrigerant is then 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 are described below with reference to fig. 1 to 3.
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: a refrigeration system 10, an indoor ambient temperature sensor 20, a coil temperature sensor 30, an upper blower 40, and a controller 50. The refrigeration system 10 is used for exchanging the positions of the air suction pipe and the air discharge pipe in the refrigeration cycle system so as to heat indoor air by using the evaporator, thereby realizing 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 low-pressure refrigerant gas into a high-temperature high-pressure refrigerant gas and discharging the high-pressure refrigerant gas to a condenser. The indoor environment temperature sensor 20 is for detecting an indoor environment temperature; the coil temperature sensor 30 is used to detect the coil temperature of the evaporator; the upper blower 40 is used for adjusting the temperature of the evaporator; the controller 50 is configured to: when the heating operation of the air conditioner is determined and the compressor 101 reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator 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 pre-stored temperature.
Specifically, it is determined that the air conditioner is operated in the heating mode, the indoor environment temperature is gradually increased, and when the indoor environment temperature is greater than the air conditioner set temperature and a preset correction value, for example, 1 ℃, the compressor 101 is operated up to Wen Tingji, whereas the compressor 101 is operated and the upper fan 40 is operated. When the compressor 101 is present up to Wen Tingji, the coil temperature of the evaporator and the indoor ambient temperature are obtained, and at least one of the upper blower 40 and the compressor 101 is controlled to operate according to the coil temperature and the indoor ambient temperature. Wherein, prestore the temperature and can be the environment temperature after a period in the box, from this, three kinds of factors of coil pipe temperature, indoor environment temperature and prestore the temperature are taken into account comprehensively for judge more accurate to the heat dissipation condition in the box, and then do benefit to the start-up to the compressor and carry out more accurate control, make appear reaching the temperature and shut down the back at compressor 101, the heat of gathering originally in the air conditioner box gives off in the short time, when indoor environment temperature is less than air conditioner settlement temperature and presets the correction value, the compressor 101 of air conditioner can normally start, in order to solve the problem that the compressor can't start for a long time because of the influence that can't dispel fast by the heat in the box under the heating mode.
In one embodiment of the invention, the controller is specifically configured to: after determining that the temperature reaching stop occurs to the compressor, judging whether the coil temperature of the evaporator is smaller than a first preset temperature, if so, controlling the upper fan to stop, and acquiring the current indoor environment temperature and the current coil temperature of the evaporator when the stop time of the upper fan reaches the first preset time; and controlling the operation of the upper fan and the compressor according to the difference between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator. Otherwise, the upper fan is controlled to continuously run until the temperature of the coil pipe of the evaporator is less than the first preset temperature. Specifically, the first preset time can be obtained by timing by a timer, namely, 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 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 between the current indoor environment temperature and the pre-stored temperature.
Specifically, when the coil temperature of the evaporator is smaller than the first preset temperature, the upper fan is controlled to stop, so that cold air can be prevented from being blown out due to the fact that the temperature of the evaporator is too low, and user experience is improved. When the shutdown time of the upper fan reaches the first preset time, the originally gathered heat in the air conditioner box body is considered to be fully dissipated, at the moment, the operation of the upper fan and the compressor can be controlled according to the difference between the current indoor environment temperature and the pre-stored temperature, so that the influence of the gathered heat in the air conditioner box body on the current indoor environment temperature is reduced to the maximum extent, after the compressor is stopped when the temperature is reached, the compressor of the air conditioner can be normally started when the indoor environment temperature is smaller than 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 that the heat in the box body cannot be quickly dissipated in a heating mode is solved.
In a specific embodiment, the first preset temperature is 28 ℃, the first preset time is 150 seconds, after the compressor is determined to be stopped when reaching the temperature, the upper fan is continuously operated until the coil temperature of the evaporator is less than 28 ℃, the upper fan is controlled to stop, and when the stopping time of the upper fan is determined to be 150 seconds, the current difference value between the 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 between the current indoor environment temperature and the pre-stored temperature.
In one embodiment of the invention, the controller is specifically configured to: determining that the temperature reaching stop occurs to the compressor, and controlling the operation of the upper fan and the compressor according to the difference value between the indoor environment temperature and the pre-stored temperature after the coil temperature of the evaporator is smaller than the first preset temperature, namely controlling the upper fan to stop. The first condition is that when the difference between the indoor environment temperature and the pre-stored temperature is smaller than the second preset temperature and the indoor environment temperature is smaller than the difference between the air conditioner set temperature and the preset correction value, the operation of the compressor and the upper fan is controlled, or when the difference between the indoor environment temperature and the pre-stored temperature is smaller than the second preset temperature and the indoor environment temperature is larger than or equal to the difference between the air conditioner set temperature and the preset correction value, the current indoor environment temperature and the coil temperature of the evaporator are acquired again, and the operation of the upper fan and the compressor is controlled according to the current difference between the indoor environment temperature and the pre-stored temperature; the second condition is that when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, the operation of the compressor and the upper fan is controlled, or when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature and the indoor environment temperature is larger than or equal to the sum of the air conditioner set temperature and the preset correction value, the current indoor environment temperature and the coil temperature of the evaporator are acquired again, and the operation of the upper fan and the compressor is controlled according to the difference between the current indoor environment temperature and the pre-stored temperature; and in the third case, when the difference between the indoor environment temperature and the pre-stored temperature is greater than a third preset temperature and the coil temperature of the evaporator is less than the difference between the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan, or when the difference 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 greater than or equal to the difference between the air conditioner set temperature and the preset correction value, acquiring the current indoor environment temperature and the coil temperature of the evaporator again, and controlling the operation of the upper fan and the compressor according to the difference 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 the second preset temperature, the air conditioner box body is better in heat dissipation condition, the indoor environment temperature collected by the indoor environment temperature sensor is not influenced by the heat of the air conditioner box body, the indoor environment temperature is continuously monitored until the indoor environment temperature is smaller than the difference between the air conditioner set temperature and the preset correction value, and the operation of the compressor and the upper fan is controlled, so that the problem that the compressor cannot be started for a long time due to the fact that the heat in the box body cannot be rapidly dissipated in a heating mode is solved. When the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, the fact that the heat of the air conditioner box body is not completely emitted is explained, the indoor environment temperature collected by the indoor environment temperature sensor is affected by the heat of the air conditioner box body, the running conditions of the compressor and the upper fan are required to be reduced to compensate the influence of the heat of the air conditioner box body on the indoor environment temperature, namely, the indoor environment temperature is continuously monitored, and when the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, the operation of the compressor and the upper fan is controlled, so that the problem that the compressor cannot be started for a long time due to the fact that the heat in the box body cannot be rapidly dissipated in a heating mode is solved. When the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature, the heat of the air conditioner box body is more, the heat is difficult to be completely dispersed in a short time, the indoor environment temperature collected by the indoor environment temperature sensor is greatly influenced by the heat of the air conditioner box body, the operation of the compressor and the upper fan is required to be controlled according to the temperature of the evaporator, namely, the temperature of the evaporator is continuously monitored until the coil temperature of the evaporator is smaller than the difference between the set temperature of the air conditioner and the preset correction value, and the operation of the compressor and the upper fan is controlled, so that the problem that the compressor cannot be started for a long time due to the influence that the heat in the box body cannot be rapidly dispersed in a heating mode is solved.
In a specific 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 ℃, then it is determined that the compressor is stopped when reaching the temperature, and after the coil temperature of the evaporator is less than 28 ℃, when the difference between the indoor environment temperature and the pre-stored temperature is less than 0 ℃, and the indoor environment temperature is less than the difference between the air conditioner set temperature and 1 ℃, the operation of the compressor and the upper fan is controlled; 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 operation of the compressor and the upper fan; when the difference between the indoor environment temperature and the pre-stored temperature is more than 2 ℃ and the coil temperature of the evaporator is less than the difference between the set temperature of the air conditioner and 1 ℃, the operation of the compressor and the upper fan is controlled.
In one embodiment of the present invention, the pre-stored temperature is an indoor ambient temperature corresponding to when the downtime of the upper blower reaches the second preset time. The second preset time is smaller than the first preset time.
Specifically, it is determined that a temperature-reaching shutdown occurs in the compressor, the coil temperature of the evaporator is smaller than a first preset temperature, namely, after the upper fan is controlled to be stopped, when the stopping time of the upper fan reaches a second preset time, the current indoor environment temperature is obtained, and the indoor environment temperature is stored as a pre-stored temperature. Specifically, the second preset time can be obtained by timer timing, namely after the upper fan is stopped, the timer is controlled to start timing, when the timing time reaches the second preset time, the current indoor environment temperature is obtained, the indoor environment temperature is stored as the pre-stored temperature, so that when the stopping time of the upper fan reaches the first preset time, the operation of the upper fan and the compressor can be controlled according to the difference value of the current indoor environment temperature and the pre-stored temperature, the influence of the heat accumulated in the box body of the air conditioner on the current indoor environment temperature is reduced to the greatest extent, and when the temperature of the compressor is lower than the air conditioner set temperature and the preset correction value after the temperature of the compressor is stopped, the compressor of the air conditioner can be started normally, so that the problem that the compressor cannot be started for a long time due to the influence of incapacity of fast dissipation of the heat in the box body in a heating mode is solved.
In a specific embodiment, the second preset time is, for example, 2s, it is determined that a temperature-reaching shutdown of the compressor occurs, and when the coil temperature of the evaporator is less than the first preset temperature, for example, 28 ℃, that is, after the upper fan is controlled to shutdown, when the shutdown time of the upper fan reaches 2s, the current indoor environment temperature is obtained, and the indoor environment temperature is stored as a pre-stored temperature.
In one embodiment of the invention, the controller is specifically configured to: when the indoor environment temperature is greater than the sum of the air conditioner set temperature and the preset correction value, the compressor is determined to be Wen Tingji.
In a specific embodiment, the air conditioner set temperature may 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 the preset correction value, the compressor is determined to be Wen Tingji. For example, the set temperature is 20 ℃, for example, the preset correction value is 1 ℃, and when the indoor environment temperature is greater than 21 ℃, the compressor is determined to be Wen Tingji. When the compressor stops when reaching the temperature, the controller respectively acquires the coil temperature and the indoor environment temperature of the evaporator 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.
The following illustrates the intelligent control of heating of an air conditioner according to an embodiment of the present invention with reference to fig. 2, and as shown in fig. 2, a flowchart of the intelligent control of heating of an air conditioner according to an embodiment of the present invention is shown.
Step S10, the air conditioner is operated in a heating mode.
Step S20, judging whether the indoor environment temperature is greater than the sum of the set temperature and the preset correction value, if yes, executing step S30, otherwise, executing step S21.
And S21, controlling the upper fan and the compressor to operate.
And step S30, controlling the compressor to stop.
Step S40, judging whether the coil temperature of the evaporator is smaller than a first preset temperature, if yes, executing step S50, otherwise, executing step S40.
And S50, controlling the upper fan to stop.
Step S60, judging whether the shutdown time of the upper fan reaches a second preset time, if so, executing step S70, otherwise, executing step S60.
Step S70, acquiring and storing the indoor environment temperature as a pre-stored temperature.
Step S80, judging whether the downtime of the upper fan reaches a first preset time, if so, executing step S90, otherwise, executing step S80.
Step S90, obtaining the current indoor environment temperature and the coil temperature of the evaporator.
And step S100, controlling the operation of the upper fan and the compressor according to the difference between the current indoor environment temperature and the pre-stored temperature.
Step S110, judging whether the difference between the indoor environment temperature and the pre-stored temperature is smaller than the second preset temperature, and executing step S111.
Step S111, determining whether the indoor environment temperature is less than the difference between the air conditioner set temperature and the preset correction value, if yes, executing step S140, otherwise, executing step S90.
Step S120, the difference 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 step S121 is performed.
Step S121, determining whether the indoor environment temperature is less than the sum of the air conditioner set temperature and the preset correction value, if yes, executing step S140, otherwise, executing step S90.
Step S130, the difference between the indoor environment temperature and the pre-stored temperature is greater than the third preset temperature, and step S131 is performed.
Step S131, judging whether the coil temperature of the evaporator is less than the difference between the air conditioner set temperature and the preset correction value, if yes, executing step S140, otherwise, executing step S90.
According to the air conditioner provided by the embodiment of the invention, when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator 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 and the indoor environment temperature, so that the influence of heat accumulated in the air conditioner box body on the current indoor environment temperature can be reduced to the greatest extent, and after the compressor stops when the temperature reaches the temperature, the compressor of the air conditioner can be normally started when the indoor environment temperature is smaller than the air conditioner set temperature and the preset correction value, so that the problem that the compressor cannot be started for a long time due to the influence that the heat in the heating box body cannot be rapidly dissipated is solved.
Further embodiments of the present invention also disclose a heating intelligent control method of an air conditioner, and fig. 3 is a flowchart of a heating intelligent control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, a heating intelligent control method of an air conditioner includes the following steps:
and S1, when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, acquiring the coil temperature of the evaporator and the indoor environment temperature.
And S2, 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 one embodiment of the present invention, controlling operation of at least one of the upper blower and the compressor based on the coil temperature, the indoor ambient temperature, and the pre-stored temperature comprises: after determining that the temperature of the compressor is reached and stopping, when judging that the temperature of the coil pipe of the evaporator is smaller than a first preset temperature, controlling the upper fan to stop; when the downtime of the upper fan reaches the 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 between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator; and after the temperature-reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be greater than or equal to the first preset temperature, the upper fan is controlled to continuously run.
In one embodiment of the present invention, the intelligent control method for heating of an air conditioner further includes: after the compressor is stopped when the temperature of the coil pipe of the evaporator is determined to be higher than or equal to a first preset temperature, the upper fan is controlled to continuously run.
In one embodiment of the present invention, controlling the operation of the upper blower and the compressor according to the difference between the current indoor ambient temperature and the pre-stored temperature includes: when the difference between the indoor environment temperature and the pre-stored temperature is smaller than the second preset temperature and the indoor environment temperature is smaller than the difference between the set temperature of the air conditioner and the preset correction value, controlling the operation of the compressor and the upper fan; when the difference 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 the preset correction value, returning to execute the acquisition step; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is larger than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to the step of acquiring; when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the set temperature of the air conditioner and the preset correction value, controlling the operation of the compressor and the upper fan; and when the difference 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 air conditioner set temperature and the preset correction value, returning to execute the acquisition step.
In one embodiment of the invention, the pre-stored temperature is an indoor environment temperature corresponding to when the downtime of the upper fan reaches a second preset time, and the second preset time is smaller than the first preset time.
In one embodiment of the invention, the controller is specifically configured to: when the indoor environment temperature is greater than the sum of the air conditioner set temperature and the preset correction value, the compressor is determined to be Wen Tingji.
It should be noted that, when the heating control is performed by the heating intelligent control method of the air conditioner according to the embodiment of the present invention, the specific implementation manner is similar to that of the control method of the controller of the air conditioner according to the above embodiment of the present invention, and specific please refer to the description of the air conditioner section, so that redundancy is reduced and no redundant description is provided herein.
According to the intelligent heating control method of the air conditioner, when the heating operation of the air conditioner is determined and the compressor reaches Wen Tingji, the coil temperature and the indoor environment temperature of the evaporator 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 and the indoor environment temperature, so that the influence of heat accumulated in the air conditioner box body on the current indoor environment temperature can be reduced to the greatest extent, and after the compressor stops when the temperature reaches, the compressor can be normally started when the indoor environment temperature is smaller than the air conditioner set temperature and the preset correction value, so that the problem that the compressor cannot be started for a long time due to the influence that the heat in the heating box body cannot be rapidly dissipated in a heating mode is solved.
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 (8)

1. An air conditioner, comprising:
the refrigerating system is used for exchanging the positions of the air suction pipe and the air discharge pipe in the refrigerating circulation system so as to heat indoor air by utilizing the evaporator to realize heating operation of the air conditioner, and comprises a compressor 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;
an indoor environment temperature sensor for detecting an indoor environment temperature;
a coil temperature sensor for detecting a coil temperature of the evaporator;
the upper fan is used for adjusting the temperature of the evaporator;
the controller is specifically configured to:
after the heating operation of the air conditioner and the temperature-reaching shutdown of the compressor are determined, when the coil temperature of the evaporator is judged to be smaller than a first preset temperature, controlling the upper fan to shut down;
when the downtime of the upper fan reaches a first preset time, executing an acquisition step, wherein the acquisition step comprises the following steps: acquiring the current indoor environment temperature and the current coil temperature of the evaporator;
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 value between the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan;
when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan;
and when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan.
2. The air conditioner of claim 1, wherein the controller is further configured to:
and after the temperature-reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be greater than or equal to the first preset temperature, the upper fan is controlled to continuously run.
3. The air conditioner according to claim 1, wherein the controller is specifically configured to:
and returning to the step of acquiring when the difference 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 the preset correction value, or when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than a third preset temperature and the indoor environment temperature is larger than or equal to the sum of the air conditioner set temperature and the preset correction value, or when the difference 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 between the air conditioner set temperature and the preset correction value.
4. An air conditioner according to any one of claims 1 to 3, wherein the pre-stored temperature is an indoor environment temperature corresponding to a time when a stop time of the upper blower reaches a second preset time, and the second preset time is smaller than the first preset time.
5. The air conditioner according to claim 1, wherein the controller is specifically configured to: and when the indoor environment temperature is greater than the sum of the air conditioner set temperature and the preset correction value, determining that the compressor reaches Wen Tingji.
6. An intelligent control method for heating of an air conditioner is characterized by comprising the following steps:
after the heating operation of the air conditioner is determined and the compressor is stopped when reaching the temperature, when the coil temperature of the evaporator is judged to be smaller than a first preset temperature, controlling an upper fan to stop, wherein the upper fan is used for adjusting the temperature of the evaporator;
when the downtime of the upper fan reaches a first preset time, executing an acquisition step, wherein the acquisition 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 between the current indoor environment temperature and the pre-stored temperature and the current coil temperature of the evaporator;
when the difference 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 air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate;
when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan;
and when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan.
7. The intelligent control method for heating an air conditioner according to claim 6, wherein controlling the operation of the upper blower and the compressor according to the difference between the current indoor ambient temperature and the pre-stored temperature and the current coil temperature of the evaporator comprises: and after the temperature-reaching stop of the compressor is determined, when the coil temperature of the evaporator is judged to be greater than or equal to the first preset temperature, the upper fan is controlled to continuously run.
8. The intelligent control method for heating of air conditioner according to claim 6, wherein,
controlling the operation of the upper fan and the compressor according to the difference between the current indoor environment temperature and the pre-stored temperature, comprising:
when the difference 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 air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate;
when the difference 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 the preset correction value, returning to execute the acquisition step;
when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is smaller than the sum of the air conditioner set temperature and the preset correction value, controlling the operation of the compressor and the upper fan;
when the difference between the indoor environment temperature and the pre-stored temperature is larger than the second preset temperature and smaller than the third preset temperature, and the indoor environment temperature is larger than or equal to the sum of the air conditioner set temperature and the preset correction value, returning to the step of acquiring;
when the difference between the indoor environment temperature and the pre-stored temperature is larger than the third preset temperature and the coil temperature of the evaporator is smaller than the difference between the air conditioner set temperature and the preset correction value, controlling the compressor and the upper fan to operate;
and when the difference 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 air conditioner set temperature and the preset correction value, returning to execute the acquisition step.
CN202210205345.5A 2022-03-02 2022-03-02 Air conditioner and heating intelligent control method thereof Active CN114576794B (en)

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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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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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