CN114754460B - Air conditioner control method and device, air conditioner and storage medium - Google Patents

Air conditioner control method and device, air conditioner and storage medium Download PDF

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Publication number
CN114754460B
CN114754460B CN202210373443.XA CN202210373443A CN114754460B CN 114754460 B CN114754460 B CN 114754460B CN 202210373443 A CN202210373443 A CN 202210373443A CN 114754460 B CN114754460 B CN 114754460B
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China
Prior art keywords
air conditioner
temperature
valve
initial
current
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Chinese (zh)
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CN114754460A (en
Inventor
李晓群
陈国强
王现林
吴巨锋
杨为标
黄俊斌
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202210373443.XA priority Critical patent/CN114754460B/en
Publication of CN114754460A publication Critical patent/CN114754460A/en
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Classifications

    • 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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method and device of an air conditioner, the air conditioner and a storage medium, wherein the method comprises the following steps: under the condition that the air conditioner operates after being started, acquiring the operation parameters of the air conditioner; according to initial operation parameters of the air conditioner, determining whether an operating mode of opening the air conditioner is matched with an environment to which the air conditioner belongs, and determining whether the air conditioner is started for the first time after power-on; under the condition that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs and the starting-up of the air conditioner is the first starting-up after power-up, determining whether a big valve and a small valve of an outdoor unit of the air conditioner are in the unopened condition according to the current operation parameters of the air conditioner; if the valve of the air conditioner is not opened, controlling the air conditioner to stop and sending out a reminding message that the valve of the air conditioner is not opened. According to the scheme, the air conditioner is controlled to be protected and stopped when the valve of the external machine of the air conditioner is abnormal, so that the framework is prevented from being burned due to the fact that the compressor is continuously at high temperature.

Description

Air conditioner control method and device, air conditioner and storage medium
Technical Field
The invention belongs to the technical field of air conditioners, in particular relates to a control method and device of an air conditioner, the air conditioner and a storage medium, and particularly relates to an implementation method and device for quickly judging a logic function of a valve plug of an external unit of the air conditioner, the air conditioner and the storage medium.
Background
For air conditioning equipment (i.e., air conditioning), there is often after-market feedback of the burning of the high temperature skeleton of the compressor, wherein this problem occurs without lack of new air conditioning equipment, most of which are caused by the fact that after-market installation, i.e., installation, the external machine valves are not opened in time (generally forgetting to open all are not opened). The problem of burning and thawing of the high-temperature framework of the compressor is solved, the investigation is not easy, the maintenance cost is high, and the compressor can only be replaced again; and the application replacement period for replacing the new compressor is long, and the complaint of the user is large. Meanwhile, the big and small valves of the external machine are not opened in time, so that a refrigerant circulation system of the air conditioner is blocked, if an exhaust protection mechanism of the compressor cannot respond in time, the compressor can be caused to continuously heat at a high temperature to burn and melt a framework, and irreversible damage is caused.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention aims to provide a control method, a device, an air conditioner and a storage medium of an air conditioner, which are used for solving the problems that when a large valve and a small valve of an air conditioner are not opened in time, a refrigerant circulation system of the air conditioner is blocked, and a framework is burned and fused due to continuous high temperature of a compressor, and achieving the effects of protecting and stopping the air conditioner when the large valve and the small valve of the air conditioner are abnormal and avoiding the framework burned and fused due to continuous high temperature of the compressor by judging whether the large valve and the small valve of the air conditioner are not opened or not when the air conditioner is started and operated.
The invention provides a control method of an air conditioner, comprising the following steps: under the condition that the air conditioner operates after being started, acquiring the operation parameters of the air conditioner; the operation parameters of the air conditioner comprise: the initial operation parameters of the air conditioner and the current operation parameters of the air conditioner; according to the initial operation parameters of the air conditioner, determining whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs, and determining whether the air conditioner is started for the first time after being electrified; under the condition that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs and the starting-up of the air conditioner is the first starting-up after power-up, determining whether a big valve and a small valve of an outdoor unit of the air conditioner are in the unopened condition according to the current operation parameters of the air conditioner; and if the valve of the outdoor unit of the air conditioner is not opened, controlling the air conditioner to stop and sending out a reminding message that the valve of the outdoor unit of the air conditioner is not opened.
In some embodiments, the initial operating parameters of the air conditioner include: the method comprises the steps of enabling an initial outdoor environment temperature of the air conditioner, an initial indoor environment temperature of the air conditioner, an initial outdoor heat exchanger tube temperature of the air conditioner and an initial indoor heat exchanger tube temperature of the air conditioner to be equal to each other; according to the initial operation parameters of the air conditioner, determining whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs comprises the following steps: determining whether an initial outdoor environment temperature of the air conditioner and an initial indoor environment temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature; if the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature, determining that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs; and/or, determining whether the air conditioner is started for the first time after power-on according to the initial operation parameters of the air conditioner, including: determining whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor ambient temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor ambient temperature of the air conditioner is less than or equal to a second set temperature threshold value; and if the absolute value of the difference between the initial indoor heat exchanger tube temperature of the air conditioner and the initial indoor environment temperature of the air conditioner is smaller than or equal to a first set temperature threshold value, and the absolute value of the difference between the initial outdoor heat exchanger tube temperature of the air conditioner and the initial outdoor environment temperature of the air conditioner is smaller than or equal to a second set temperature threshold value, the starting-up of the air conditioner is the first starting-up after power-on.
In some embodiments, the current operating parameters of the air conditioner include: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner; the first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner; according to the current operation parameters of the air conditioner, determining whether the valve of the outdoor unit of the air conditioner is in the unopened condition comprises the following steps: determining whether the current operation time length of the air conditioner reaches a set valve blocking time length or not, and determining whether the current operation frequency of a compressor of the air conditioner is greater than or equal to the set valve blocking frequency or not; if the current operation time length of the air conditioner reaches the set valve blocking time length and the current operation frequency of the compressor of the air conditioner is larger than or equal to the set valve blocking frequency, determining whether the valve of the outdoor unit of the air conditioner is unopened or not according to the first operation parameter of the air conditioner and the second operation parameter of the air conditioner.
In some embodiments, the second operating parameter of the air conditioner comprises: the method comprises the steps of enabling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner to be equal to each other; combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner, determining whether the valve of the outdoor unit of the air conditioner is in the unopened condition, comprising: determining whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is smaller than a first set valve blocking temperature; if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than the first set valve blocking temperature, determining whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature; if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature, controlling the indoor fan rotating speed of the air conditioner to keep the current indoor fan rotating speed to operate, controlling the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and controlling the outdoor fan rotating speed of the air conditioner to be adjusted from the current outdoor fan rotating speed to the first operating rotating speed; and after controlling the air conditioner to run for a set period of time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, determining whether an outdoor unit big valve and a small valve of the air conditioner are in an unopened condition according to the current indoor heat exchanger tube temperature of the air conditioner.
In some embodiments, determining whether an outdoor unit size valve of the air conditioner is in an unopened condition in combination with a current indoor heat exchanger tube temperature of the air conditioner includes: before the air conditioner runs for a set time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a first indoor heat exchange tube temperature; after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a second indoor heat exchanger tube temperature; determining whether an absolute value of a difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature; and if the absolute value of the difference between the second indoor unit tube temperature and the first indoor unit tube temperature is smaller than or equal to the third set valve blocking temperature, determining that the valve of the outdoor unit of the air conditioner is not opened.
In accordance with another aspect of the present invention, there is provided a control apparatus for an air conditioner, including: the acquisition unit is configured to acquire the operation parameters of the air conditioner under the condition that the air conditioner operates after being started; the operation parameters of the air conditioner comprise: the initial operation parameters of the air conditioner and the current operation parameters of the air conditioner; the control unit is configured to determine whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs according to the initial operation parameters of the air conditioner, and determine whether the air conditioner is started for the first time after power-on; the control unit is further configured to determine whether a big valve and a small valve of an outdoor unit of the air conditioner are in an unopened condition according to current operation parameters of the air conditioner when an operation mode of opening the air conditioner is matched with an environment to which the air conditioner belongs and the air conditioner is started for the first time after power-on; and the control unit is further configured to control the air conditioner to stop and send out a reminding message that the valve of the outdoor unit of the air conditioner is not opened if the valve of the outdoor unit of the air conditioner is not opened.
In some embodiments, the initial operating parameters of the air conditioner include: the method comprises the steps of enabling an initial outdoor environment temperature of the air conditioner, an initial indoor environment temperature of the air conditioner, an initial outdoor heat exchanger tube temperature of the air conditioner and an initial indoor heat exchanger tube temperature of the air conditioner to be equal to each other; the control unit determines whether the working mode of the air conditioner started is matched with the environment to which the air conditioner belongs according to the initial operation parameters of the air conditioner, and comprises the following steps: determining whether an initial outdoor environment temperature of the air conditioner and an initial indoor environment temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature; if the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature, determining that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs; and/or, the control unit determines whether the air conditioner is started for the first time after being electrified according to the initial operation parameters of the air conditioner, including: determining whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor ambient temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor ambient temperature of the air conditioner is less than or equal to a second set temperature threshold value; and if the absolute value of the difference between the initial indoor heat exchanger tube temperature of the air conditioner and the initial indoor environment temperature of the air conditioner is smaller than or equal to a first set temperature threshold value, and the absolute value of the difference between the initial outdoor heat exchanger tube temperature of the air conditioner and the initial outdoor environment temperature of the air conditioner is smaller than or equal to a second set temperature threshold value, the starting-up of the air conditioner is the first starting-up after power-on.
In some embodiments, the current operating parameters of the air conditioner include: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner; the first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner; the control unit determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition according to the current operation parameters of the air conditioner, and comprises the following steps: determining whether the current operation time length of the air conditioner reaches a set valve blocking time length or not, and determining whether the current operation frequency of a compressor of the air conditioner is greater than or equal to the set valve blocking frequency or not; if the current operation time length of the air conditioner reaches the set valve blocking time length and the current operation frequency of the compressor of the air conditioner is larger than or equal to the set valve blocking frequency, determining whether the valve of the outdoor unit of the air conditioner is unopened or not according to the first operation parameter of the air conditioner and the second operation parameter of the air conditioner.
In some embodiments, the second operating parameter of the air conditioner comprises: the method comprises the steps of enabling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner to be equal to each other; the control unit, in combination with the first operation parameter of the air conditioner and the second operation parameter of the air conditioner, determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition, including: determining whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is smaller than a first set valve blocking temperature; if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than the first set valve blocking temperature, determining whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature; if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature, controlling the indoor fan rotating speed of the air conditioner to keep the current indoor fan rotating speed to operate, controlling the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and controlling the outdoor fan rotating speed of the air conditioner to be adjusted from the current outdoor fan rotating speed to the first operating rotating speed; and after controlling the air conditioner to run for a set period of time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, determining whether an outdoor unit big valve and a small valve of the air conditioner are in an unopened condition according to the current indoor heat exchanger tube temperature of the air conditioner.
In some embodiments, the control unit, in combination with the current indoor heat exchanger tube temperature of the air conditioner, determines whether an outdoor unit size valve of the air conditioner is in an unopened condition, including: before the air conditioner runs for a set time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a first indoor heat exchange tube temperature; after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a second indoor heat exchanger tube temperature; determining whether an absolute value of a difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature; and if the absolute value of the difference between the second indoor unit tube temperature and the first indoor unit tube temperature is smaller than or equal to the third set valve blocking temperature, determining that the valve of the outdoor unit of the air conditioner is not opened.
In accordance with another aspect of the present invention, there is provided an air conditioner including: the control device of the air conditioner.
In accordance with the above method, a further aspect of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, the device where the storage medium is controlled to execute the control method of the air conditioner described above.
According to the scheme, when the air conditioner is started and operated, corresponding parameters of the air conditioner during the startup and operation are obtained, whether the corresponding parameters are in a set threshold range or not is judged, so that whether the large valve and the small valve of the air conditioner are not opened or not is judged, and if the large valve and the small valve of the air conditioner are not opened, the shutdown protection of the air conditioner is controlled; therefore, whether the big valve and the small valve of the air conditioner are not opened or not is judged when the air conditioner is started and operated, so that the air conditioner is controlled to be protected and stopped when the big valve and the small valve of the air conditioner are abnormal, and the framework is prevented from being burned due to continuous high temperature of the compressor.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow chart of an embodiment of a control method of an air conditioner according to the present invention;
FIG. 2 is a flow chart of an embodiment of determining whether the operation mode of the air conditioner is matched with the environment of the air conditioner in the method of the present invention;
FIG. 3 is a flowchart of an embodiment of determining whether the air conditioner is first powered on after power-up in the method of the present invention;
FIG. 4 is a flow chart of an embodiment of the method according to the present operation parameters of the air conditioner for determining whether the valve of the outdoor unit of the air conditioner is unopened;
FIG. 5 is a flow chart of an embodiment of the method of the present invention for determining whether the valve of the outdoor unit of the air conditioner is unopened by combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner;
FIG. 6 is a flow chart of an embodiment of the method of the present invention for determining whether the valve of the outdoor unit of the air conditioner is unopened in combination with the current indoor heat exchanger tube temperature of the air conditioner;
FIG. 7 is a schematic view of a control device of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a flow chart of an embodiment of a method for implementing a quick determination of a valve blocking logic function of an air conditioner outdoor unit;
Fig. 9 is a schematic structural view of an embodiment of a valve of an outdoor unit of an air conditioner.
In the embodiment of the present invention, reference numerals are as follows, in combination with the accompanying drawings:
102-an acquisition unit; 104-a control unit; 1-a small valve; 2-big valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. 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.
The air conditioner is characterized in that the air conditioner is generally provided with an inner machine and an outer machine, before the refrigerant is installed, the refrigerant is arranged on the outer machine, the outer machine is provided with a large valve and a small valve, when the air conditioner is installed after sales, the inner machine and the outer machine are connected through connecting pipes, the connecting pipes are connected with corresponding valves, after vacuumizing, the valves are generally required to be opened, the inner machine and the outer machine are enabled to flow, and refrigeration and heating are carried out through refrigerant circulation. That is, after the inner and outer units are connected, the valve of the outer unit is not opened, and the refrigerant system cannot circulate normally, so that the blockage occurs.
The problems of demagnetization of the compressor or after-sale of the high-temperature framework are solved, most of after-sale revisions are caused by that an installer does not open a valve, the refrigerant of the whole machine is not circulated after the valve is blocked, and the compressor runs in an idle state for a long time. Although the compressor power and current are relatively low at this time, the compressor is operated at a high pressure ratio for a long time, the compressor bearings are worn out greatly, and the internal temperature of the compressor is continuously increased. Meanwhile, as the refrigerant is not circulated, the temperature of the exhaust pipe is conducted by the heat of the compressor, although the temperature of the middle part of the compressor reaches 180 ℃ (the temperature of the winding of the compressor is about 200 ℃), the monitored exhaust temperature is only 105-112 ℃, the power of the whole machine is lower, any unrecoverable protection function is not triggered, and the air bubble deformation begins to appear along with the rise of the internal temperature of the compressor, or the demagnetization phenomenon of the electromagnetic winding begins to appear.
The general processing mode is 2, the compressor is added with hardware protection such as overload protection devices, but the cost is increased, and the other mode is added with logic function judgment: if the valve is blocked, the refrigerant is not circulated, which is equivalent to the fact that the air conditioner cannot operate, namely cannot perform refrigeration and heating.
In some schemes, by utilizing the running characteristics of the valve plug, the valve plug is judged through parameter comparison, and under the condition of no need of newly increasing cost, the new addition of functions is realized, and a certain protection effect is achieved. However, in order to avoid erroneous protection or erroneous judgment, these schemes require multiple judgment and repeated judgment, which results in a large number of times of judgment of abnormality of the air conditioning system and a long time. In view of this, the invention proposes an implementation scheme for rapidly judging the logic function of the valve plug of the air conditioner external unit and an air conditioner.
According to an embodiment of the present invention, there is provided a control method of an air conditioner, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The control method of the air conditioner may include: step S110 to step S140.
At step S110, in the case that the air conditioner is operated after being turned on, an operation parameter of the air conditioner is obtained. The operation parameters of the air conditioner comprise: the initial operating parameters of the air conditioner and the current operating parameters of the air conditioner.
At step S120, according to the initial operation parameters of the air conditioner, it is determined whether the operation mode of the air conditioner for opening is matched with the environment to which the air conditioner belongs, and whether the air conditioner is started for the first time after power-on is determined. The working mode comprises the following steps: either a cooling mode or a heating mode.
In some embodiments, the initial operating parameters of the air conditioner include: the method comprises the steps of initial outdoor environment temperature of the air conditioner, initial indoor environment temperature of the air conditioner, initial outdoor heat exchanger tube temperature of the air conditioner and initial indoor heat exchanger tube temperature of the air conditioner. Initial outdoor environment temperature of the air conditioner, such as room at starting time of the air conditionerExternal ambient temperature T Outer ring 0 The initial indoor environment temperature of the air conditioner is the indoor environment temperature T at the starting time of the air conditioner Inner ring 0 The initial outdoor heat exchanger tube temperature of the air conditioner is equal to the outdoor heat exchanger tube temperature T at the starting time of the air conditioner Outer tube 0 And the initial indoor heat exchanger tube temperature of the air conditioner is equal to the indoor heat exchanger tube temperature T of the air conditioner at the starting time Inner tube 0 。
In step S120, according to the initial operation parameters of the air conditioner, it is determined whether the operation mode of the air conditioner when turned on matches with the environment to which the air conditioner belongs, and whether the air conditioner is turned on for the first time after power-on, and according to the initial operation parameters of the air conditioner, it is determined whether the operation mode of the air conditioner when turned on matches with the environment to which the air conditioner belongs, which will be described in the following exemplary embodiments.
In the following, a flowchart of an embodiment of determining whether the operation mode of the air conditioner is matched with the environment to which the air conditioner belongs in the method of the present invention shown in fig. 2 is further described, where the specific process of determining whether the operation mode of the air conditioner is matched with the environment to which the air conditioner belongs in step S120 includes: step S210 and step S220.
Step S210, determining whether the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature.
Step S220, if the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature, determining that the operating mode of the air conditioner when turned on matches with the environment to which the air conditioner belongs.
Fig. 8 is a flowchart of an embodiment of a method for quickly determining a logic function of a valve plug of an air conditioner outdoor unit. As shown in fig. 8, the implementation method for quickly judging the logic function of the valve plug of the air conditioner external unit comprises the following steps:
and step S10, controlling the air conditioner to enter the large and small valve blocking protection logic of the air conditioner external unit under the condition that the refrigerant circulation system of the air conditioner meets the following conditions, otherwise, controlling the air conditioner to normally operate. When the refrigerant circulation system of the air conditioner does not circulate the refrigerant, the air conditioner cannot operate, namely cannot perform refrigeration and heating, namely the tube temperature of the evaporator or the condenser of the air conditioner has no difference value with the environmental working condition.
Specifically, in the case of the air conditioner being turned on, such as in the case of the air conditioner being turned on in the cooling mode, the air conditioner parameters are obtained, such as the indoor environment temperature T at the time of the air conditioner being turned on Inner ring 0 Outdoor environment temperature T at starting time of air conditioner Outer ring 0 Tube temperature T of indoor heat exchanger at starting time of air conditioner Inner tube 0 Outdoor heat exchanger tube temperature T at starting time of air conditioner Outer tube 0 Etc., after which step S20 is performed.
Step S20, judging whether the air conditioner parameters meet the following conditions: first set temperature T 1 Indoor environment temperature T is less than or equal to Inner ring 0 The second set temperature T is less than or equal to 2 And a first set temperature T 1 Outdoor environment temperature T is less than or equal to Outer ring 0 The second set temperature T is less than or equal to 2 . If yes, go to step S30. Otherwise, it continues to wait at step S20.
For example: judging the indoor environment temperature T at 16 ℃ or less Inner ring 0 Outdoor ambient temperature T Outer ring 0 If the temperature is less than or equal to 43 ℃, the judging condition is mainly to determine whether the starting refrigeration mode is matched, because the set temperature of a general air conditioner remote controller is 16-30 ℃, if the difference between the indoor temperature and the outdoor temperature is 12 ℃, the set refrigeration mode is assumed, and the set target is 16 ℃, because the temperature point meets the set temperature and is obviously lower than the set temperature, the compressor does not operate for refrigeration. In addition, under the heating mode, the indoor environment temperature T is judged to be less than or equal to 4 DEG C Inner ring 0 Outdoor ambient temperature T Outer ring 0 Whether the temperature is less than or equal to 20 ℃ or not is met or not, and the judging condition mainly is to determine whether the opening heating mode is matched or not.
If the indoor environment temperature T is not more than 16 DEG C Inner ring 0 Outdoor ambient temperature T Outer ring 0 The temperature of the air conditioner which can be set according to the refrigeration of the air conditioner remote controller is 16-30 ℃ and is lower than 16 ℃ generally does not need to start the air conditioner, or the compressor is not started when the air conditioner is started and is set at 16 ℃, and the machine considers that the air conditioner is not needed because the air conditioner is setThe fixed temperature point has reached the set temperature. As for the outdoor ambient temperature T Outer ring 0 At 43 ℃ it is indicated that the function may fail at higher temperatures, mainly because: first, outdoor ambient temperature T Outer ring 0 The temperature is too high, the refrigeration mode may not be ideal because the ambient temperature is too high, and the tube temperature may not be different from the ambient temperature, that is, may be misjudged. Second, the valve is forgotten to open, and the valve is installed and tested for the first time, and the outdoor environment temperature T Outer ring 0 Above 43 ℃, the installation difficulty is too great, and the operation can only be started from the test machine operation.
And/or, in some embodiments, in step S120, according to the initial operation parameters of the air conditioner, it is determined whether the operation mode of opening the air conditioner matches with the environment to which the air conditioner belongs, and it is determined whether the air conditioner is in the first power-on after power-up, and according to the initial operation parameters of the air conditioner, it is determined whether the air conditioner is a specific process of first power-on after power-up, see the following exemplary description.
In the following, referring to fig. 3, a flowchart of an embodiment of determining whether the air conditioner is first powered on after power-up in the method of the present invention is further described, where the specific process of determining whether the air conditioner is first powered on after power-up in step S120 includes: step S310 and step S320.
Step S310, determining whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor environment temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor environment temperature of the air conditioner is less than or equal to a second set temperature threshold value. The first set temperature threshold and the second set temperature threshold may be the same, for example, 1 ℃.
In step S320, if the absolute value of the difference between the initial indoor heat exchanger tube temperature of the air conditioner and the initial indoor environment temperature of the air conditioner is less than or equal to the first set temperature threshold, and the absolute value of the difference between the initial outdoor heat exchanger tube temperature of the air conditioner and the initial outdoor environment temperature of the air conditioner is less than or equal to the second set temperature threshold, the start-up of the air conditioner is the first start-up after power-up.
As shown in fig. 8, the implementation method for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises the following steps:
step S30, judging the tube temperature T of the indoor heat exchanger Inner tube 0 -indoor ambient temperature T Inner ring 0 Setting temperature threshold T Setting up Whether the pipe temperature T of the indoor heat exchanger is satisfied or not and judge Outer tube 0 -outdoor ambient temperature T Outer ring 0 Setting temperature threshold T Setting up Whether or not it satisfies: if yes, go to step S40. Otherwise, it continues to wait at step S30.
Wherein, the temperature threshold T is set Setting up Can be 0.5-1.5 ℃, and the temperature threshold T is set Setting up Preferably, it may be 1 ℃.
For example: judging tube temperature T of indoor heat exchanger Inner tube 0 -indoor ambient temperature T Inner ring 0 The temperature is less than or equal to 1 ℃ and the tube temperature T of the outdoor heat exchanger is judged Outer tube 0 -outdoor ambient temperature T Outer ring 0 Whether the temperature is less than or equal to 1 ℃ is met or not, and mainly determining whether the machine is started for the first time, such as the first time of machine installation and machine test, and the tube temperature T of the indoor heat exchanger is not operated before Inner tube 0 Indoor environment temperature T Inner ring 0 Theoretically no temperature difference exists, and the tube temperature T of the external heat exchanger Outer tube 0 With the outdoor ambient temperature T Outer ring 0 And the same is true. The main significance of the logic is that the installation test machine or the movement machine is used for judging or timely finding whether the after-sale installation is abnormal or whether the valve is opened timely. The first power-on may refer to first power-on after power-off.
In step S130, if the operating mode of the air conditioner is matched with the environment to which the air conditioner belongs and the startup of the air conditioner is the first startup after power-up, it is determined whether the valve of the outdoor unit of the air conditioner is not opened according to the current operating parameters of the air conditioner.
The valve of the outdoor unit of the air conditioner is a valve used for cutting off or opening the refrigerant circulation of the indoor and outdoor units on the split type air conditioner, and is divided into a gas distribution pipe and a liquid pipe according to the refrigeration cycle direction, and the size and the pipe diameter of the gas distribution pipe are different, so the gas distribution pipe is also called as a large valve. Fig. 9 is a schematic structural view of an embodiment of a valve of an outdoor unit of an air conditioner. The big and small valves of the outdoor unit of the air conditioner can be a small valve 1 and a big valve 2 as shown in fig. 9.
In some embodiments, the current operating parameters of the air conditioner include: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner. The first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner. The current operation time of the air conditioner is as long as the operation time t of the air conditioner i Current operating frequency of compressor of said air conditioner, e.g. compressor operating frequency F i The current indoor environment temperature of the air conditioner is as the current indoor environment temperature T Inner ring i And the current indoor heat exchanger tube temperature of the air conditioner is as the current indoor heat exchanger tube temperature T Inner tube i 。
In step S130, according to the current operation parameters of the air conditioner, a specific process of determining whether the valve of the outdoor unit of the air conditioner is not opened is described in the following exemplary description.
In the following, referring to fig. 4, a flowchart of an embodiment of determining whether the valve of the outdoor unit of the air conditioner is unopened according to the current operation parameters of the air conditioner in the method of the present invention is further described, where the specific process of determining whether the valve of the outdoor unit of the air conditioner is unopened in step S130 includes: step S310 and step S320.
Step S310, determining whether the current operation duration of the air conditioner reaches the set valve blocking duration, and determining whether the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency. Setting valve blocking time length such as refrigerating valve blocking time length in a refrigerating mode, heating valve blocking time length in a heating mode and the like, and setting valve blocking frequency such as refrigerating valve blocking frequency in the refrigerating mode, heating valve blocking frequency in the heating mode and the like.
Step S320, if the current operation duration of the air conditioner reaches the set valve blocking duration and the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency, determining whether the valve of the outdoor unit of the air conditioner is unopened according to the first operation parameter of the air conditioner and the second operation parameter of the air conditioner.
As shown in fig. 8, the implementation method for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises the following steps:
step S40, after the air conditioner is started for the first time, the running time t of the air conditioner i When the set refrigerating valve blockage judging time is reached, the step S50 is executed, otherwise, the waiting is continued in the step S40. The judging time of the blockage of the refrigerating valve generally refers to the time when the compressor is operated to the target operating frequency after the air conditioner is started, for example, 3min.
Step S50, next, judging the compressor operation frequency F i Whether the frequency of the refrigeration valve plug is more than or equal to: if yes, go to step S60. Otherwise, it continues to wait at step S50.
The frequency of the refrigeration valve is as low as 30Hz. If the frequency is lower than the judgment frequency due to the blockage of the refrigerant circulation system of the air conditioner, such as the running time t of the air conditioner i When the determination time of the refrigeration valve blockage is=the target frequency of the compressor is not lower than the refrigeration valve blockage frequency, the determination is not performed for the following reasons: under the condition that the first valve is blocked and the non-valve is blocked, if the operation frequency of the compressor is too low, the tube temperature of the indoor heat exchanger under refrigeration is possibly high, the gap cannot be opened from the indoor environment temperature, the later judgment condition is affected, and error protection is easy to enter. Under the condition of second and valve blockage, abnormality may be caused by blockage of a refrigerant circulation system, but the compressor is not damaged due to lower operation frequency of the compressor, so that the operation frequency F of the compressor is as follows i And if the frequency of the refrigeration valve blockage is less than the frequency of the refrigeration valve blockage, the next condition judgment is not carried out, otherwise, the next condition judgment is carried out.
In some embodiments, the second operating parameter of the air conditioner comprises: the method comprises the steps of controlling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner.
In the following, in conjunction with the first operation parameter of the air conditioner and the second operation parameter of the air conditioner in the method of the present invention shown in fig. 5, a flowchart of an embodiment of determining whether the outdoor unit size valve of the air conditioner is in an unopened condition is further described, where in step S320, the specific process of determining whether the outdoor unit size valve of the air conditioner is in an unopened condition by combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner is further described, and the method includes: step S510 to step S540.
Step S510, determining whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is smaller than a first set valve blocking temperature. First setting of valve blocking temperature, e.g. T Refrigerating valve blockage judging condition 1 。
Step S520, if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than the first set valve blocking temperature, determining whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature. Second setting of valve blocking temperature, e.g. T Condition 2 for judging blockage of refrigeration valve 。
And step S530, if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature, controlling the indoor fan rotating speed of the air conditioner to keep the current indoor fan rotating speed to operate, controlling the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and controlling the outdoor fan rotating speed of the air conditioner to be adjusted from the current outdoor fan rotating speed to the first operating rotating speed. Current operating frequency of compressor, e.g. current operating frequency F i First operating frequency, e.g. first operating frequency F i+t . The current running speed of the outdoor fan is as the current speed W i First operating speed, e.g. first speed W i+t 。
Step S540, after controlling the air conditioner to operate for a set period according to the current indoor fan rotation speed, the first operation frequency and the first operation rotation speed, determining whether the valve of the outdoor unit of the air conditioner is not opened according to the current indoor heat exchanger tube temperature of the air conditioner.
As shown in fig. 8, the implementation method for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises the following steps:
step S60, judging the I delta T Inner ring |＜T Refrigerating valve blockage judging condition 1 Whether or not it satisfies: if so, step S70 is performed. Otherwise, the waiting continues at step S60.
Step S70, judging the current indoor heat exchanger tube temperature T Inner tube i Current indoor ambient temperature T Inner ring i |≤T Condition 2 for judging blockage of refrigeration valve Whether or not it satisfies: if so, step S80 is performed. Otherwise, it continues to wait at step S70.
Wherein DeltaT Inner ring Indoor ambient temperature T at start-up time Inner ring 0 Current indoor ambient temperature T Inner ring i Let T be Refrigerating valve blockage judging condition 1 ＝1℃、T Condition 2 for judging blockage of refrigeration valve Because the refrigerant circulation system is blocked, the indoor unit is not operated by refrigerant under refrigeration, and the indoor unit is not output by cold, so the indoor environment temperature and the indoor heat exchanger tube temperature are not changed theoretically, which is also a key judging condition for judging the valve blocking.
Of course, in step S60 and step S70, the condition of determining the valve blocking may be determined by detecting the power of the compressor (the refrigerant circulation system is blocked, no refrigerant is circulated, the power of the compressor is lower than the normal power at the same frequency), or detecting the temperature of the exhaust gas, the temperature of the exhaust gas blocked by the refrigerant circulation system is lower (lighter than normal), or the temperature difference between the outer tube and the outer ring.
Step S80, after that, keeping the rotation speed of the indoor fan unchanged, and the operation frequency of the compressor is changed from the current operation frequency F i Adjusted to a first operating frequency F i+t At the same time, the rotating speed of the external fan is changed from the current rotating speed W i Is adjusted to a first rotation speed W i+t And run for a set time t. Step S90 is then performed. Thus, by controlling the compressor frequency and the indoor fan rotational speed, the disturbance effect on the indoor heat exchanger inner tube temperature can be reduced.
Here, the set time t=2min of operation is assumed.Current operating frequency F i Adjusted to a first operating frequency F i+t Let us assume an adjustment from 30Hz to 40Hz. The rotating speed of the external fan is changed from the current rotating speed W i Is adjusted to a first rotation speed W i+t Let 700r adjust to 850r. Here, the principle is that the compressor frequency is increased and the outer fan rotation speed is decreased simultaneously. That is, the output of the outdoor unit is regulated to regulate the refrigerating capacity of the indoor unit to control the temperature of the indoor heat exchanger. In some schemes, the valve is stopped, and the protection before the valve is repeatedly determined for a plurality of times is needed, so that the abnormality of the valve blocking system can be finally determined.
In some embodiments, in conjunction with the flow chart of an example of determining whether the valve of the outdoor unit of the air conditioner is unopened by combining the current indoor heat exchanger tube temperature of the air conditioner in the method of the present invention shown in fig. 6, a specific process of determining whether the valve of the outdoor unit of the air conditioner is unopened by combining the current indoor heat exchanger tube temperature of the air conditioner in step S540 is further described, including: step S610 to step S630.
Step S610, before the air conditioner runs for a set period of time according to the current indoor fan rotation speed, the first running frequency and the first running rotation speed, recording the current indoor heat exchanger tube temperature of the air conditioner as a first indoor heat exchange tube temperature. And after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, recording the current indoor heat exchanger tube temperature of the air conditioner as a second indoor heat exchanger tube temperature.
Step S620, determining whether the absolute value of the difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature. Third setting of valve blocking temperature, e.g. T Condition 3 for judging blockage of refrigeration valve 。
Step S630, if the absolute value of the difference between the second indoor unit tube temperature and the first indoor unit tube temperature is less than or equal to the third set valve blocking temperature, determining that the outdoor unit size valve of the air conditioner is not opened.
As shown in fig. 8, the implementation method for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises the following steps:
step S90, judging the tube temperature T of the indoor heat exchanger after the time T of the I operation Inner tube i+t -indoor heat exchanger tube temperature T before operating T time Inner tube i |≤T Condition 3 for judging blockage of refrigeration valve Whether or not the condition is satisfied is determined by determining whether or not the condition is satisfied, assuming T Condition 3 for judging blockage of refrigeration valve =1 ℃, if satisfied, the data is abnormal. If the data is not satisfied, the data is normal and normal operation is carried out.
Of course, in the same manner as in the heating mode, reference may be made to the description related to the cooling mode, which will not be repeated here.
At step S140, if the outdoor unit size valve of the air conditioner is not opened, the air conditioner is controlled to stop, and a warning message that the outdoor unit size valve of the air conditioner is not opened is sent. Of course, if the valve of the outdoor unit of the air conditioner is not opened, the air conditioner is controlled to normally operate.
According to the implementation scheme of the valve blocking logic function of the external machine of the air conditioner, when the air conditioner is started to operate, the air conditioner automatically enters the valve blocking logic judgment, whether the external machine valve is not opened or not is judged and determined by reading corresponding parameters, if the external machine valve is truly judged in time due to abnormal valve blocking, the internal machine is protected and automatically stopped, faults can be rapidly determined, and after-sales personnel can maintain conveniently.
According to the scheme of the invention, after preliminary judgment such as pipe temperature and the like, repeated detection is not needed by stopping, and the running conditions (change disturbance) are changed during the preliminary judgment, so that the output result is timely judged, and timely protection and reminding are provided for the air conditioner, so that the after-sale troubleshooting efficiency is effectively improved, the after-sale faults are reduced, and the user experience is improved. The blocking rule of the refrigerant circulation system of the air conditioner is that the air conditioner cannot operate, namely cannot refrigerate and heat according to the condition that the large valve and the small valve of the air conditioner are blocked and no refrigerant circulation exists. In addition, the new function of the scheme of the invention does not need to be added with new cost. In addition, the method can ensure the guarantee promise for years, such as up to 10 years, improve the enterprise image, improve the after-sale problem checking efficiency and reduce the after-sale fault maintenance.
By adopting the technical scheme of the embodiment, the corresponding parameters of the air conditioner during the startup operation are obtained when the air conditioner is started, whether the corresponding parameters are in the set threshold range is judged, so that whether the big or small valve of the air conditioner is not opened is judged, and if the big or small valve of the air conditioner is not opened, the shutdown protection of the air conditioner is controlled. Therefore, whether the big valve and the small valve of the air conditioner are not opened or not is judged when the air conditioner is started and operated, so that the air conditioner is controlled to be protected and stopped when the big valve and the small valve of the air conditioner are abnormal, and the framework is prevented from being burned due to continuous high temperature of the compressor.
According to an embodiment of the present invention, there is also provided a control apparatus of an air conditioner corresponding to a control method of an air conditioner. Referring to fig. 7, a schematic view of an embodiment of the apparatus of the present invention is shown. The control device of the air conditioner may include: an acquisition unit 102 and a control unit 104.
Wherein, the obtaining unit 102 is configured to obtain the operation parameters of the air conditioner when the air conditioner is operated after being started. The operation parameters of the air conditioner comprise: the initial operating parameters of the air conditioner and the current operating parameters of the air conditioner. The specific function and process of the acquisition unit 102 refer to step S110.
The control unit 104 is configured to determine, according to the initial operation parameters of the air conditioner, whether the operation mode of opening the air conditioner matches with the environment to which the air conditioner belongs, and determine whether the air conditioner is started for the first time after power-on. The working mode comprises the following steps: either a cooling mode or a heating mode. The specific function and process of the control unit 104 refer to step S120.
In some embodiments, the initial operating parameters of the air conditioner include: the method comprises the steps of initial outdoor environment temperature of the air conditioner, initial indoor environment temperature of the air conditioner, initial outdoor heat exchanger tube temperature of the air conditioner and initial indoor heat exchanger tube temperature of the air conditioner. The initial outdoor environment temperature of the air conditioner is the outdoor environment temperature T at the starting time of the air conditioner Outer ring 0 The initial indoor environment temperature of the air conditioner is the indoor environment temperature T at the starting time of the air conditioner Inner ring 0 The initial outdoor heat exchanger tube temperature of the air conditioner is equal to the outdoor heat exchanger tube temperature T at the starting time of the air conditioner Outer tube 0 And the initial indoor heat exchanger tube temperature of the air conditioner is equal to the indoor heat exchanger tube temperature T of the air conditioner at the starting time Inner tube 0 。
The control unit 104 determines, according to the initial operation parameter of the air conditioner, whether an operation mode of opening the air conditioner matches with an environment to which the air conditioner belongs, and determines whether the air conditioner is started for the first time after power-on, and determines, according to the initial operation parameter of the air conditioner, whether the operation mode of opening the air conditioner matches with the environment to which the air conditioner belongs, including:
the control unit 104 is specifically further configured to determine whether the initial outdoor ambient temperature of the air conditioner and the initial indoor ambient temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature. The specific function and process of the control unit 104 also refer to step S210.
The control unit 104 is specifically further configured to determine that the working mode of opening the air conditioner matches with the environment to which the air conditioner belongs if the initial outdoor environmental temperature of the air conditioner and the initial indoor environmental temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature. The specific function and process of the control unit 104 is also referred to as step S220.
Fig. 8 is a schematic flow chart of an embodiment of an implementation device for quickly determining a logic function of a valve plug of an air conditioner outdoor unit. As shown in fig. 8, the implementation device for quickly determining the logic function of the valve plug of the air conditioner external unit comprises:
and step S10, controlling the air conditioner to enter the large and small valve blocking protection logic of the air conditioner external unit under the condition that the refrigerant circulation system of the air conditioner meets the following conditions, otherwise, controlling the air conditioner to normally operate. When the refrigerant circulation system of the air conditioner does not circulate the refrigerant, the air conditioner cannot operate, namely cannot perform refrigeration and heating, namely the tube temperature of the evaporator or the condenser of the air conditioner has no difference value with the environmental working condition.
Specifically, in the case of the air conditioner being turned on, such as in the case of the air conditioner being turned on in the cooling mode, the air conditioner parameters are obtained, such as the indoor environment temperature T at the time of the air conditioner being turned on Inner ring 0 Outdoor environment temperature T at starting time of air conditioner Outer ring 0 Tube temperature T of indoor heat exchanger at starting time of air conditioner Inner tube 0 Outdoor heat exchanger tube temperature T at starting time of air conditioner Outer tube 0 Etc., after which step S20 is performed.
Step S20, judging whether the air conditioner parameters meet the following conditions: first set temperature T 1 Indoor environment temperature T is less than or equal to Inner ring 0 The second set temperature T is less than or equal to 2 And a first set temperature T 1 Outdoor environment temperature T is less than or equal to Outer ring 0 The second set temperature T is less than or equal to 2 . If yes, go to step S30. Otherwise, it continues to wait at step S20.
For example: judging the indoor environment temperature T at 16 ℃ or less Inner ring 0 Outdoor ambient temperature T Outer ring 0 If the temperature is less than or equal to 43 ℃, the judging condition is mainly to determine whether the starting refrigeration mode is matched, because the set temperature of a general air conditioner remote controller is 16-30 ℃, if the difference between the indoor temperature and the outdoor temperature is 12 ℃, the set refrigeration mode is assumed, and the set target is 16 ℃, because the temperature point meets the set temperature and is obviously lower than the set temperature, the compressor does not operate for refrigeration.
If the indoor environment temperature T is not more than 16 DEG C Inner ring 0 Outdoor ambient temperature T Outer ring 0 The temperature of the air conditioner which can be set according to the refrigeration of the air conditioner remote controller is 16-30 ℃, the air conditioner is not required to be started when the temperature is lower than 16 ℃, or the compressor is not started when the air conditioner is started to set the temperature of 16 ℃, and the machine considers that the air conditioner is not required because the set temperature point has reached the set temperature. As for the outdoor ambient temperature T Outer ring 0 At 43 ℃ it is indicated that the function may fail at higher temperatures, mainly because: first, outdoor ambient temperature T Outer ring 0 Too high a temperature, the refrigeration mode may not be ideal due to too high an ambient temperature, and the tube temperature may be similar to the loopThe ambient temperature is not separated, i.e. erroneous judgment is possible. Second, the valve is forgotten to open, and the valve is installed and tested for the first time, and the outdoor environment temperature T Outer ring 0 Above 43 ℃, the installation difficulty is too great, and the operation can only be started from the test machine operation.
And/or, in some embodiments, the control unit 104 determines, according to the initial operation parameter of the air conditioner, whether the working mode of opening the air conditioner matches with the environment to which the air conditioner belongs, and determines whether the air conditioner is first started after power-up, and determines, according to the initial operation parameter of the air conditioner, whether the air conditioner is first started after power-up, including:
the control unit 104 is specifically further configured to determine whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor ambient temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor ambient temperature of the air conditioner is less than or equal to a second set temperature threshold value. The first set temperature threshold and the second set temperature threshold may be the same, for example, 1 ℃. The specific function and process of the control unit 104 also refer to step S310.
The control unit 104 is specifically further configured to start the air conditioner for the first time after power-on if an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor environment temperature of the air conditioner is less than or equal to a first set temperature threshold value, and an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor environment temperature of the air conditioner is less than or equal to a second set temperature threshold value. The specific function and process of the control unit 104 also refer to step S320.
As shown in fig. 8, the implementation device for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises:
step S30, judging the tube temperature T of the indoor heat exchanger Inner tube 0 -indoor ambient temperature T Inner ring 0 Setting temperature threshold T Setting up Whether the pipe temperature T of the indoor heat exchanger is satisfied or not and judge Outer tube 0 -outdoor ambient temperature T Outer ring0 Setting temperature threshold T Setting up Whether or not it satisfies: if yes, go to step S40. Otherwise, it continues to wait at step S30.
Wherein, the temperature threshold T is set Setting up Can be 0.5-1.5 ℃, and the temperature threshold T is set Setting up Preferably, it may be 1 ℃.
For example: judging tube temperature T of indoor heat exchanger Inner tube 0 -indoor ambient temperature T Inner ring 0 The temperature is less than or equal to 1 ℃ and the tube temperature T of the outdoor heat exchanger is judged Outer tube 0 -outdoor ambient temperature T Outer ring 0 Whether the temperature is less than or equal to 1 ℃ is met or not, and mainly determining whether the machine is started for the first time, such as the first time of machine installation and machine test, and the tube temperature T of the indoor heat exchanger is not operated before Inner tube 0 Indoor environment temperature T Inner ring 0 Theoretically no temperature difference exists, and the tube temperature T of the external heat exchanger Outer tube 0 With the outdoor ambient temperature T Outer ring 0 And the same is true. The main significance of the logic is that the installation test machine or the movement machine is used for judging or timely finding whether the after-sale installation is abnormal or whether the valve is opened timely. The first power-on may refer to first power-on after power-off.
The control unit 104 is further configured to determine, according to the current operation parameter of the air conditioner, whether the valve of the outdoor unit of the air conditioner is not opened when the working mode of opening the air conditioner matches with the environment to which the air conditioner belongs and the start-up of the air conditioner is the first start-up after power-up. The specific function and processing of the control unit 104 is also referred to in step S130.
In some embodiments, the current operating parameters of the air conditioner include: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner. The first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner. The current operation time of the air conditioner is as long as the operation time t of the air conditioner i Current operating frequency of compressor of said air conditioner, e.g. compressor operating frequency F i The current indoor environment temperature of the air conditioner is as the current indoor environment temperature T Inner ring i And the current indoor heat exchanger tube temperature of the air conditioner such as the current roomTube temperature T of inner heat exchanger Inner tube i 。
The control unit 104 determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition according to the current operation parameters of the air conditioner, including:
the control unit 104 is specifically further configured to determine whether the current operation duration of the air conditioner reaches the set valve blocking duration, and determine whether the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency. Setting valve blocking time length such as refrigerating valve blocking time length in a refrigerating mode, heating valve blocking time length in a heating mode and the like, and setting valve blocking frequency such as refrigerating valve blocking frequency in the refrigerating mode, heating valve blocking frequency in the heating mode and the like. The specific function and process of the control unit 104 also refer to step S410.
The control unit 104 is specifically further configured to determine whether the valve of the outdoor unit of the air conditioner is not opened according to the first operation parameter of the air conditioner and the second operation parameter of the air conditioner if the current operation duration of the air conditioner reaches the set valve blocking duration and the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency. The specific function and process of the control unit 104 also refer to step S420.
As shown in fig. 8, the implementation device for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises:
step S40, after the air conditioner is started for the first time, the running time t of the air conditioner i When the set refrigerating valve blockage judging time is reached, the step S50 is executed, otherwise, the waiting is continued in the step S40. The judging time of the blockage of the refrigerating valve generally refers to the time when the compressor is operated to the target operating frequency after the air conditioner is started, for example, 3min.
Step S50, next, judging the compressor operation frequency F i Whether the frequency of the refrigeration valve plug is more than or equal to: if yes, go to step S60. Otherwise, it continues to wait at step S50.
The frequency of the refrigeration valve is as low as 30Hz. If the frequency is lower than the judgment frequency due to the blockage of the refrigerant circulation system of the air conditioner, such as the running time t of the air conditioner i When the determination time of the refrigeration valve blockage is=the target frequency of the compressor is not lower than the refrigeration valve blockage frequency, the determination is not performed for the following reasons: under the condition that the first valve is blocked and the non-valve is blocked, if the operation frequency of the compressor is too low, the tube temperature of the indoor heat exchanger under refrigeration is possibly high, the gap cannot be opened from the indoor environment temperature, the later judgment condition is affected, and error protection is easy to enter. Under the condition of second and valve blockage, abnormality may be caused by blockage of a refrigerant circulation system, but the compressor is not damaged due to lower operation frequency of the compressor, so that the operation frequency F of the compressor is as follows i And if the frequency of the refrigeration valve blockage is less than the frequency of the refrigeration valve blockage, the next condition judgment is not carried out, otherwise, the next condition judgment is carried out.
In some embodiments, the second operating parameter of the air conditioner comprises: the method comprises the steps of controlling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner.
The control unit 104, in combination with the first operation parameter of the air conditioner and the second operation parameter of the air conditioner, determines whether the outdoor unit size valve of the air conditioner is in an unopened condition, including:
the control unit 104 is specifically further configured to determine whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is less than a first set valve blocking temperature. First setting of valve blocking temperature, e.g. T Refrigerating valve blockage judging condition 1 . The specific function and process of the control unit 104 also refer to step S510.
The control unit 104 is specifically further configured to determine whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is less than or equal to the second set valve blocking temperature if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is less than the first set valve blocking temperature. Second setting of valve blocking temperature, e.g. T Condition 2 for judging blockage of refrigeration valve . The specific function and process of the control unit 104 also refer to step S520.
The control unit 104 is specifically further configured to control the indoor fan speed of the air conditioner to keep the current indoor fan speed to operate if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is less than or equal to the second set valve blocking temperature, control the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and control the outdoor fan speed of the air conditioner to be adjusted from the current outdoor fan speed to the first operating speed. Current operating frequency of compressor, e.g. current operating frequency F i First operating frequency, e.g. first operating frequency F i+t . The current running speed of the outdoor fan is as the current speed W i First operating speed, e.g. first speed W i+t . The specific function and processing of the control unit 104 is also referred to in step S530.
The control unit 104 is specifically further configured to determine, according to the current indoor heat exchanger tube temperature of the air conditioner, whether the valve of the outdoor unit of the air conditioner is unopened after the air conditioner is controlled to operate according to the current indoor fan rotation speed, the first operation frequency and the first operation rotation speed for a set period of time. The specific function and process of the control unit 104 also refer to step S540.
As shown in fig. 8, the implementation device for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises:
as shown in fig. 8, the implementation method for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises the following steps:
step S60, judging the I delta T Inner ring |＜T Refrigerating valve blockage judging condition 1 Whether or not it satisfies: if so, step S70 is performed. Otherwise, the waiting continues at step S60.
Step S70, judging the current indoor heat exchanger tube temperature T Inner tube i Current indoor ambient temperature T Inner ring i |≤T Condition 2 for judging blockage of refrigeration valve Whether or not it satisfies: if so, step S80 is performed. Otherwise, it continues to wait at step S70.
Wherein DeltaT Inner ring Indoor ambient temperature T at start-up time Inner ring 0 Current indoor ambient temperature T Inner ring i Let T be Refrigerating valve blockage judging condition 1 ＝1℃、T Condition 2 for judging blockage of refrigeration valve Because the refrigerant circulation system is blocked, the indoor unit is not operated by refrigerant under refrigeration, and the indoor unit is not output by cold, so the indoor environment temperature and the indoor heat exchanger tube temperature are not changed theoretically, which is also a key judging condition for judging the valve blocking.
Of course, in step S60 and step S70, the condition of determining the valve blocking may be determined by detecting the power of the compressor (the refrigerant circulation system is blocked, no refrigerant is circulated, the power of the compressor is lower than the normal power at the same frequency), or detecting the temperature of the exhaust gas, the temperature of the exhaust gas blocked by the refrigerant circulation system is lower (lighter than normal), or the temperature difference between the outer tube and the outer ring.
Step S80, after that, keeping the rotation speed of the indoor fan unchanged, and the operation frequency of the compressor is changed from the current operation frequency F i Adjusted to a first operating frequency F i+t At the same time, the rotating speed of the external fan is changed from the current rotating speed W i Is adjusted to a first rotation speed W i+t And run for a set time t. Step S90 is then performed.
Here, the set time t=2min of operation is assumed. Current operating frequency F i Adjusted to a first operating frequency F i+t Let us assume an adjustment from 30Hz to 40Hz. The rotating speed of the external fan is changed from the current rotating speed W i Is adjusted to a first rotation speed W i+t Let 700r adjust to 850r. Here, the principle is that the compressor frequency is increased and the outer fan rotation speed is decreased simultaneously. That is, the output of the outdoor unit is regulated to regulate the refrigerating capacity of the indoor unit to control the temperature of the indoor heat exchanger. In some schemes, the valve is stopped, and the protection before the valve is repeatedly determined for a plurality of times is needed, so that the abnormality of the valve blocking system can be finally determined.
In some embodiments, the control unit 104, in combination with the current indoor heat exchanger tube temperature of the air conditioner, determines whether the outdoor unit size valve of the air conditioner is in an unopened condition, including:
The control unit 104 is specifically further configured to record the current indoor heat exchanger tube temperature of the air conditioner as a first indoor heat exchanger tube temperature before the air conditioner is operated for a set period of time according to the current indoor fan rotation speed, the first operation frequency and the first operation rotation speed. And after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, recording the current indoor heat exchanger tube temperature of the air conditioner as a second indoor heat exchanger tube temperature. The specific function and process of the control unit 104 also refer to step S610.
The control unit 104 is specifically further configured to determine whether an absolute value of a difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature. Third setting of valve blocking temperature, e.g. T Condition 3 for judging blockage of refrigeration valve . The specific function and processing of the control unit 104 is also referred to in step S620.
The control unit 104 is specifically further configured to determine that the valve of the outdoor unit of the air conditioner is not opened if the absolute value of the difference between the second indoor unit tube temperature and the first indoor unit tube temperature is less than or equal to a third set valve blocking temperature. The specific function and processing of the control unit 104 is also referred to in step S630.
As shown in fig. 8, the implementation device for quickly determining the logic function of the valve plug of the air conditioner outdoor unit further comprises:
step S90, judging the tube temperature T of the indoor heat exchanger after the time T of the I operation Inner tube i+t -indoor heat exchanger tube temperature T before operating T time Inner tube i |≤T Condition 3 for judging blockage of refrigeration valve Whether or not the condition is satisfied is determined by determining whether or not the condition is satisfied, assuming T Condition 3 for judging blockage of refrigeration valve =1 ℃, if satisfied, the data is abnormal. If the data is not satisfied, the data is normal and normal operation is carried out.
Of course, in the same manner as in the heating mode, reference may be made to the description related to the cooling mode, which will not be repeated here.
The control unit 104 is further configured to control the air conditioner to stop and send a reminding message that the outdoor unit size valve of the air conditioner is not opened if the outdoor unit size valve of the air conditioner is not opened. Of course, if the valve of the outdoor unit of the air conditioner is not opened, the air conditioner is controlled to normally operate. The specific function and process of the control unit 104 also refer to step S140.
According to the implementation scheme of the valve blocking logic function of the external machine of the air conditioner, when the air conditioner is started to operate, the air conditioner automatically enters the valve blocking logic judgment, whether the external machine valve is not opened or not is judged and determined by reading corresponding parameters, if the external machine valve is truly judged in time due to abnormal valve blocking, the internal machine is protected and automatically stopped, faults can be rapidly determined, and after-sales personnel can maintain conveniently.
According to the scheme of the invention, after preliminary judgment such as pipe temperature and the like, repeated detection is not needed by stopping, and the running conditions (change disturbance) are changed during the preliminary judgment, so that the output result is timely judged, and timely protection and reminding are provided for the air conditioner, so that the after-sale troubleshooting efficiency is effectively improved, the after-sale faults are reduced, and the user experience is improved. The blocking rule of the refrigerant circulation system of the air conditioner is that the air conditioner cannot operate, namely cannot refrigerate and heat according to the condition that the large valve and the small valve of the air conditioner are blocked and no refrigerant circulation exists. In addition, the new function of the scheme of the invention does not need to be added with new cost. In addition, the method can ensure the guarantee promise for years, such as up to 10 years, improve the enterprise image, improve the after-sale problem checking efficiency and reduce the after-sale fault maintenance.
Since the processes and functions implemented by the apparatus of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the embodiments are not exhaustive, and reference may be made to the descriptions of the foregoing embodiments and their descriptions are omitted herein.
By adopting the technical scheme, the corresponding parameters of the air conditioner during the starting operation are obtained when the air conditioner is started, whether the corresponding parameters are in the set threshold range is judged, so that whether the large valve and the small valve of the air conditioner are not opened is judged, if the large valve and the small valve of the air conditioner are not opened, the air conditioner is controlled to stop for protection, the fault can be rapidly determined, and the maintenance of after-sales personnel is facilitated.
According to an embodiment of the present invention, there is also provided an air conditioner corresponding to the control device of the air conditioner. The air conditioner may include: the control device of the air conditioner.
Since the processes and functions implemented by the air conditioner of the present embodiment basically correspond to the embodiments, principles and examples of the foregoing apparatus, the description of the present embodiment is not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.
By adopting the technical scheme, the corresponding parameters of the air conditioner during the starting operation are acquired during the starting operation of the air conditioner, whether the corresponding parameters are in the set threshold range is judged, so that whether the big or small valve of the air conditioner is unopened is judged, if the big or small valve of the air conditioner is determined not to be opened, the shutdown protection of the air conditioner is controlled, the after-sale problem checking efficiency is improved, and the after-sale fault maintenance is reduced.
According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of an air conditioner, the storage medium including a stored program, wherein an apparatus in which the storage medium is controlled to execute the control method of the air conditioner described above when the program runs.
Since the processes and functions implemented by the storage medium of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the present embodiment are not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.
By adopting the technical scheme, the corresponding parameters of the air conditioner during the starting operation are acquired during the starting operation of the air conditioner, whether the corresponding parameters are in the set threshold range is judged, so that whether the big or small valve of the air conditioner external unit is not opened is judged, if the big or small valve of the air conditioner external unit is determined not to be opened, the shutdown protection of the air conditioner is controlled, the after-sale inspection efficiency is effectively improved, the after-sale faults are reduced, and the user experience is improved.
In summary, it is readily understood by those skilled in the art that the above-described advantageous ways can be freely combined and superimposed without conflict.
The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. A control method of an air conditioner, comprising:
under the condition that the air conditioner operates after being started, acquiring the operation parameters of the air conditioner; the operation parameters of the air conditioner comprise: the initial operation parameters of the air conditioner and the current operation parameters of the air conditioner; the current operation parameters of the air conditioner comprise: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner; the first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner; the second operation parameters of the air conditioner comprise: the method comprises the steps of enabling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner to be equal to each other;
According to the initial operation parameters of the air conditioner, determining whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs, and determining whether the air conditioner is started for the first time after being electrified;
under the condition that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs and the starting-up of the air conditioner is the first starting-up after power-up, determining whether a big valve and a small valve of an outdoor unit of the air conditioner are in the unopened condition according to the current operation parameters of the air conditioner; according to the current operation parameters of the air conditioner, determining whether the valve of the outdoor unit of the air conditioner is in the unopened state includes: determining whether the current operation time length of the air conditioner reaches a set valve blocking time length or not, and determining whether the current operation frequency of a compressor of the air conditioner is greater than or equal to the set valve blocking frequency or not; if the current operation time length of the air conditioner reaches the set valve blocking time length and the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency, determining whether a big valve and a small valve of an outdoor unit of the air conditioner are in an unopened condition by combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner; combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner, determining whether the valve of the outdoor unit of the air conditioner is in the unopened condition, comprising: determining whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is smaller than a first set valve blocking temperature; if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than the first set valve blocking temperature, determining whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature; if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature, controlling the indoor fan rotating speed of the air conditioner to keep the current indoor fan rotating speed to operate, controlling the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and controlling the outdoor fan rotating speed of the air conditioner to be adjusted from the current outdoor fan rotating speed to the first operating rotating speed; after controlling the air conditioner to run for a set period of time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, determining whether an outdoor unit big valve and a small valve of the air conditioner are in an unopened condition according to the current indoor heat exchanger tube temperature of the air conditioner; combining the current indoor heat exchanger tube temperature of the air conditioner, determining whether an outdoor unit size valve of the air conditioner is in an unopened condition, comprising: before the air conditioner runs for a set time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a first indoor heat exchange tube temperature; after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a second indoor heat exchanger tube temperature; determining whether an absolute value of a difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature; if the absolute value of the difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is smaller than or equal to the third set valve blocking temperature, determining that the valve of the outdoor unit of the air conditioner is not opened;
And if the valve of the outdoor unit of the air conditioner is not opened, controlling the air conditioner to stop and sending out a reminding message that the valve of the outdoor unit of the air conditioner is not opened.
2. The control method of an air conditioner according to claim 1, wherein the initial operation parameters of the air conditioner include: the method comprises the steps of enabling an initial outdoor environment temperature of the air conditioner, an initial indoor environment temperature of the air conditioner, an initial outdoor heat exchanger tube temperature of the air conditioner and an initial indoor heat exchanger tube temperature of the air conditioner to be equal to each other;
wherein,,
according to the initial operation parameters of the air conditioner, determining whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs comprises the following steps:
determining whether an initial outdoor environment temperature of the air conditioner and an initial indoor environment temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature;
if the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature, determining that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs;
And/or the number of the groups of groups,
according to the initial operation parameters of the air conditioner, determining whether the air conditioner is started for the first time after being electrified comprises the following steps:
determining whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor ambient temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor ambient temperature of the air conditioner is less than or equal to a second set temperature threshold value;
and if the absolute value of the difference between the initial indoor heat exchanger tube temperature of the air conditioner and the initial indoor environment temperature of the air conditioner is smaller than or equal to a first set temperature threshold value, and the absolute value of the difference between the initial outdoor heat exchanger tube temperature of the air conditioner and the initial outdoor environment temperature of the air conditioner is smaller than or equal to a second set temperature threshold value, the starting-up of the air conditioner is the first starting-up after power-on.
3. A control device of an air conditioner, comprising:
the acquisition unit is configured to acquire the operation parameters of the air conditioner under the condition that the air conditioner operates after being started; the operation parameters of the air conditioner comprise: the initial operation parameters of the air conditioner and the current operation parameters of the air conditioner; the current operation parameters of the air conditioner comprise: a first operating parameter of the air conditioner and a second operating parameter of the air conditioner; the first operation parameters of the air conditioner comprise: the current operation time of the air conditioner and the current operation frequency of the compressor of the air conditioner; the second operation parameters of the air conditioner comprise: the method comprises the steps of enabling the current indoor environment temperature of the air conditioner, the current indoor heat exchanger tube temperature of the air conditioner, the current indoor fan rotating speed of the air conditioner and the current outdoor fan rotating speed of the air conditioner to be equal to each other;
The control unit is configured to determine whether the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs according to the initial operation parameters of the air conditioner, and determine whether the air conditioner is started for the first time after power-on;
the control unit is further configured to determine whether a big valve and a small valve of an outdoor unit of the air conditioner are in an unopened condition according to current operation parameters of the air conditioner when an operation mode of opening the air conditioner is matched with an environment to which the air conditioner belongs and the air conditioner is started for the first time after power-on; the control unit determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition according to the current operation parameters of the air conditioner, and the control unit comprises: determining whether the current operation time length of the air conditioner reaches a set valve blocking time length or not, and determining whether the current operation frequency of a compressor of the air conditioner is greater than or equal to the set valve blocking frequency or not; if the current operation time length of the air conditioner reaches the set valve blocking time length and the current operation frequency of the compressor of the air conditioner is greater than or equal to the set valve blocking frequency, determining whether a big valve and a small valve of an outdoor unit of the air conditioner are in an unopened condition by combining the first operation parameter of the air conditioner and the second operation parameter of the air conditioner; the control unit, in combination with the first operation parameter of the air conditioner and the second operation parameter of the air conditioner, determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition, including: determining whether an absolute value of a difference between an initial indoor environment temperature of the air conditioner and a current indoor environment temperature of the air conditioner is smaller than a first set valve blocking temperature; if the absolute value of the difference between the initial indoor environment temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than the first set valve blocking temperature, determining whether the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature; if the absolute value of the difference between the current indoor heat exchanger tube temperature of the air conditioner and the current indoor environment temperature of the air conditioner is smaller than or equal to the second set valve blocking temperature, controlling the indoor fan rotating speed of the air conditioner to keep the current indoor fan rotating speed to operate, controlling the compressor frequency of the air conditioner to be adjusted from the current operating frequency to the first operating frequency, and controlling the outdoor fan rotating speed of the air conditioner to be adjusted from the current outdoor fan rotating speed to the first operating rotating speed; after controlling the air conditioner to run for a set period of time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, determining whether an outdoor unit big valve and a small valve of the air conditioner are in an unopened condition according to the current indoor heat exchanger tube temperature of the air conditioner; the control unit, in combination with the current indoor heat exchanger tube temperature of the air conditioner, determines whether the valve of the outdoor unit of the air conditioner is in the unopened condition, including: before the air conditioner runs for a set time according to the current indoor fan rotating speed, the first running frequency and the first running rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a first indoor heat exchange tube temperature; after the air conditioner operates for a set period of time according to the current indoor fan rotating speed, the first operating frequency and the first operating rotating speed, the current indoor heat exchanger tube temperature of the air conditioner is recorded as a second indoor heat exchanger tube temperature; determining whether an absolute value of a difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is less than or equal to a third set valve blocking temperature; if the absolute value of the difference between the second indoor unit pipe temperature and the first indoor unit pipe temperature is smaller than or equal to the third set valve blocking temperature, determining that the valve of the outdoor unit of the air conditioner is not opened;
And the control unit is further configured to control the air conditioner to stop and send out a reminding message that the valve of the outdoor unit of the air conditioner is not opened if the valve of the outdoor unit of the air conditioner is not opened.
4. A control device of an air conditioner according to claim 3, wherein the initial operation parameters of the air conditioner include: the method comprises the steps of enabling an initial outdoor environment temperature of the air conditioner, an initial indoor environment temperature of the air conditioner, an initial outdoor heat exchanger tube temperature of the air conditioner and an initial indoor heat exchanger tube temperature of the air conditioner to be equal to each other;
wherein,,
the control unit determines whether the working mode of the air conditioner started is matched with the environment to which the air conditioner belongs according to the initial operation parameters of the air conditioner, and comprises the following steps:
determining whether an initial outdoor environment temperature of the air conditioner and an initial indoor environment temperature of the air conditioner are both greater than or equal to a first set temperature and less than or equal to a second set temperature;
if the initial outdoor environment temperature of the air conditioner and the initial indoor environment temperature of the air conditioner are both greater than or equal to the first set temperature and less than or equal to the second set temperature, determining that the working mode of opening the air conditioner is matched with the environment to which the air conditioner belongs;
And/or the number of the groups of groups,
the control unit determines whether the air conditioner is started for the first time after power-on according to the initial operation parameters of the air conditioner, and comprises the following steps:
determining whether an absolute value of a difference between an initial indoor heat exchanger tube temperature of the air conditioner and an initial indoor ambient temperature of the air conditioner is less than or equal to a first set temperature threshold value, and whether an absolute value of a difference between an initial outdoor heat exchanger tube temperature of the air conditioner and an initial outdoor ambient temperature of the air conditioner is less than or equal to a second set temperature threshold value;
and if the absolute value of the difference between the initial indoor heat exchanger tube temperature of the air conditioner and the initial indoor environment temperature of the air conditioner is smaller than or equal to a first set temperature threshold value, and the absolute value of the difference between the initial outdoor heat exchanger tube temperature of the air conditioner and the initial outdoor environment temperature of the air conditioner is smaller than or equal to a second set temperature threshold value, the starting-up of the air conditioner is the first starting-up after power-on.
5. An air conditioner, comprising: the control device of an air conditioner according to any one of claims 3 to 4.
6. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to perform the control method of the air conditioner of any one of claims 1 to 2.
CN202210373443.XA 2022-04-11 2022-04-11 Air conditioner control method and device, air conditioner and storage medium Active CN114754460B (en)

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CN202210373443.XA CN114754460B (en) 2022-04-11 2022-04-11 Air conditioner control method and device, air conditioner and storage medium

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Application Number Priority Date Filing Date Title
CN202210373443.XA CN114754460B (en) 2022-04-11 2022-04-11 Air conditioner control method and device, air conditioner and storage medium

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CN115789911B (en) * 2022-11-17 2024-05-03 中国联合网络通信集团有限公司 Air conditioner control method and device, electronic equipment and storage medium
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