CN113124539A - Automatic protection control method and device for unopened air conditioner valve and air conditioner - Google Patents

Automatic protection control method and device for unopened air conditioner valve and air conditioner Download PDF

Info

Publication number
CN113124539A
CN113124539A CN202110529554.0A CN202110529554A CN113124539A CN 113124539 A CN113124539 A CN 113124539A CN 202110529554 A CN202110529554 A CN 202110529554A CN 113124539 A CN113124539 A CN 113124539A
Authority
CN
China
Prior art keywords
air conditioner
current
temperature
compressor
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110529554.0A
Other languages
Chinese (zh)
Inventor
李朝政
彭子影
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Original Assignee
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aux Air Conditioning Co Ltd, Ningbo Aux Electric Co Ltd filed Critical Aux Air Conditioning Co Ltd
Priority to CN202110529554.0A priority Critical patent/CN113124539A/en
Publication of CN113124539A publication Critical patent/CN113124539A/en
Pending legal-status Critical Current

Links

Images

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
    • F24F11/70—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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • 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
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

Landscapes

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

Abstract

The invention provides an automatic protection control method and device for unopened air conditioner valve and an air conditioner, and relates to the field of air conditioners. The method comprises the following steps: when a compressor of the air conditioner is started, acquiring the initial outer disc temperature and the initial inner disc temperature of the air conditioner; when the compressor runs for a preset time, acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor of the air conditioner; judging whether a valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value; and if the valve of the air conditioner is not opened, controlling the compressor to stop. The embodiment of the invention can process the abnormal condition that the valve is not opened, and avoid or reduce the damage of the compressor, thereby being beneficial to improving the reliability of the air conditioning system.

Description

Automatic protection control method and device for unopened air conditioner valve and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an automatic protection control method and device for unopened air conditioner valves and an air conditioner.
Background
The split air conditioner is a refrigeration loop system formed by connecting indoor and outdoor equipment through pipelines, valves are arranged at gas and liquid connecting pipes of an outdoor unit, and the valves are in a closed state before the air conditioner is installed so as to prevent refrigerant from leaking. After the air conditioner is installed, the valve needs to be manually opened, so that the air conditioner refrigerating system keeps indoor and outdoor communication and circulation. In some abnormal conditions, the valve is not opened after the air conditioner is installed (for example, the installation is not standardized, etc.), but the air conditioner cannot detect the opening state of the valve, the refrigeration cycle is blocked because the valve is not opened, so that the compressor runs for a long time to generate heat, the temperature of a coil of the compressor is continuously increased, and finally the compressor can be damaged.
Disclosure of Invention
The invention solves the problem that the compressor is abnormal or damaged due to the fact that the air conditioner valve is not opened.
In order to solve the above problems, embodiments of the present invention provide an automatic protection control method and apparatus for an unopened air conditioner valve, and an air conditioner, which can handle an abnormal condition that the valve is not opened, and avoid or reduce damage to a compressor, thereby improving reliability of an air conditioning system.
In a first aspect, the present invention provides an automatic protection control method for an air conditioner valve which is not opened, wherein the method comprises:
when a compressor of the air conditioner is started, acquiring the initial outer disc temperature and the initial inner disc temperature of the air conditioner;
when the compressor runs for a preset time, acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor of the air conditioner;
judging whether a valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value;
and if the valve of the air conditioner is not opened, controlling the compressor to stop.
The embodiment of the invention provides an automatic protection control method for unopened air conditioner valves, which comprises the following steps: the method comprises the steps of judging whether a valve is opened or not by obtaining the initial outer disc temperature and the initial inner disc temperature of the air conditioner, the current inner disc temperature, the current outer ring temperature of the air conditioner and the current value of the compressor, and controlling the compressor to stop when the valve is opened. In order to solve the problem of compressor failure caused by non-opening of the valve due to non-standard installation, the embodiment of the invention starts from the aspect of control, and indirectly judges the abnormal condition of the non-opening of the valve by detecting the parameters such as the temperature change condition of the coil pipe, the current value of the compressor and the like, thereby avoiding the irreparable damage of the air-conditioning compressor, improving the reliability of an air-conditioning system and being beneficial to ensuring the use experience of a user.
In an optional embodiment, the step of determining whether a valve of the air conditioner is open according to the initial outer disc temperature, the initial inner disc temperature, the current inner environment temperature, the current outer disc temperature, the current outer ring temperature, and the current value includes:
judging whether the following judgment conditions are simultaneously satisfied:
the current inner disc temperature and the current inner ring temperature meet a first judgment condition;
the current inner disc temperature and the initial inner disc temperature meet a second judgment condition;
the current value meets a third judgment condition;
the current outer disc temperature and the current outer ring temperature meet a fourth judgment condition;
the current outer disc temperature and the initial outer disc temperature meet a fifth judgment condition;
and if the judgment conditions are simultaneously satisfied, judging that the valve of the air conditioner is not opened.
In an alternative embodiment, the first determination condition includes that an absolute value of a difference between the current inner disc temperature and the current inner ring temperature is less than or equal to a first determination parameter;
the second judgment condition comprises that the absolute value of the difference between the current inner disc temperature and the initial inner disc temperature is less than or equal to a second judgment parameter;
the third judgment condition comprises that the current value is less than or equal to a third judgment parameter;
the fourth judgment condition comprises that the absolute value of the difference between the current outer disc temperature and the current outer ring temperature is less than or equal to a fourth judgment parameter;
the fifth judgment condition includes that an absolute value of a difference between the current outer disc temperature and the initial outer disc temperature is less than or equal to a fifth judgment parameter.
In an alternative embodiment, the method further comprises:
acquiring the current operating frequency of the compressor;
judging whether the current operating frequency meets a sixth judgment condition;
and if the first judgment condition, the second judgment condition, the third judgment condition, the fourth judgment condition, the fifth judgment condition and the sixth judgment condition are all satisfied, judging that the compressor is not started.
In an alternative embodiment, the sixth determination condition includes that the current operating frequency is greater than or equal to a sixth determination parameter.
In an alternative embodiment, after the step of controlling the compressor to stop if the valve of the air conditioner is not opened, the method further includes:
and controlling the compressor to start after the compressor stops for a set time.
In an alternative embodiment, the method further comprises:
and if the valve of the air conditioner is not opened, under the condition that the step of controlling the compressor to stop is continuously executed twice, judging that the air conditioner is in a failure that the valve is not opened, and/or generating and sending failure prompt information.
In an optional embodiment, before the step of determining whether a valve of the air conditioner is open according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature, and the current value, the method further includes:
acquiring initial inner ring temperature when the compressor is started;
judging whether an internal and external machine sensor of the air conditioner fails or not according to the initial inner ring temperature and the initial inner disc temperature;
and if the internal and external machine sensors of the air conditioner have no fault, executing the step of judging whether the valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current outer ring temperature and the current value.
In a second aspect, the present invention provides an automatic protection control device for an air conditioner valve which is not opened, the device comprising:
a first obtaining module: the air conditioner temperature control method comprises the steps of obtaining an initial outer disc temperature and an initial inner disc temperature of the air conditioner when a compressor of the air conditioner is started;
a second obtaining module: the air conditioner is used for acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor when the compressor runs for a preset time;
a judging module: the controller is used for judging whether a valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value;
a control module: and if the valve of the air conditioner is not opened, controlling the compressor to stop.
The embodiment of the invention provides an automatic protection control device for an unopened air conditioner valve, which comprises the following steps: the method comprises the steps of judging whether a valve is opened or not by obtaining the initial outer disc temperature and the initial inner disc temperature of the air conditioner, the current inner disc temperature, the current outer ring temperature of the air conditioner and the current value of the compressor, and controlling the compressor to stop when the valve is opened. In order to solve the problem of compressor failure caused by non-opening of the valve due to non-standard installation, the embodiment of the invention starts from the aspect of control, and indirectly judges the abnormal condition of the non-opening of the valve by detecting the parameters such as the temperature change condition of the coil pipe, the current value of the compressor and the like, thereby avoiding the irreparable damage of the air-conditioning compressor, improving the reliability of an air-conditioning system and being beneficial to ensuring the use experience of a user.
In a third aspect, the present invention provides an air conditioner comprising a controller having stored thereon an executable control program which, when read and executed, implements a method as set forth in any one of the preceding embodiments.
The air conditioner provided by the embodiment of the invention can indirectly judge the abnormal condition that the valve is not opened, thereby avoiding the irreparable damage of an air conditioner compressor, improving the reliability of an air conditioning system and being beneficial to ensuring the use experience of a user.
Drawings
Fig. 1 is a block diagram schematically illustrating a structure of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a flow chart of a control method provided by an embodiment of the present invention;
fig. 3 is a block diagram schematically illustrating the structure of the control device in fig. 1.
Icon: 100-an air conditioner; 10-a control device; 11-a first acquisition module; 12-a second acquisition module; 13-a judgment module; 14-a control module; and 20, a controller.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an embodiment of the present invention provides an automatic protection control device 10 for an air conditioner with an unopened air conditioner valve, which is applied to an air conditioner 100. The air conditioner 100 includes an automatic protection control device 10 and a controller 20. The automatic protection control device 10 in which the air conditioner valve is not opened includes at least one software function module which may be stored in the controller 20 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of a server. The controller 20 is used for executing executable modules stored therein, such as software functional modules and computer programs included in the automatic protection control device 10 when the air conditioner valve is not opened.
The controller 20 may be an integrated circuit chip having signal processing capabilities. The controller 20 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor. The controller 20 may also be any conventional processor or the like.
The controller 20 is programmed with an automatic protection control method and device for the air conditioner valve which is not opened and a control program of the air conditioner 100, and when the controller 20 receives an execution instruction, the automatic protection control method for the air conditioner valve which is not opened is executed.
Referring to fig. 2, the method and apparatus for controlling automatic protection of an unopened air conditioner valve and the method for controlling the air conditioner 100 according to the embodiment of the present invention include the following steps.
Step S100: when a compressor of the air conditioner 100 is turned on, an initial outer tray temperature and an initial inner tray temperature of the air conditioner 100 are acquired.
It should be noted that when the compressor is turned on, the initial outer panel temperature of the air conditioner 100 refers to the coil temperature of the outdoor unit when the compressor is not in operation, and the initial inner panel temperature of the air conditioner 100 refers to the coil temperature of the indoor unit when the compressor is not in operation. The initial outer panel temperature and the initial inner panel temperature of the air conditioner 100 acquired in step S100 are used to represent the temperatures of the inner and outer coil pipes when the compressor is not in operation; after the compressor of the air conditioner 100 is started and operates for a period of time, if the air conditioner valve is opened, the refrigeration pipeline is normal, and the temperature of the inner coil and the temperature of the outer coil are changed due to the change of the physical state of the refrigerant; if the air conditioner valve is not opened, the refrigerant does not flow in the pipeline, and the temperature of the inner coil pipe and the temperature of the outer coil pipe are almost the same as the temperature of the inner environment and the temperature of the outer environment. Whether the valve is opened or not can be reflected by the initial outer tray temperature and the initial inner tray temperature of the air conditioner 100.
Meanwhile, it should be noted that whether the temperature of the inner and outer coils changes or not reflects whether the air conditioner valve is opened or not, which may be misjudged, in the embodiment of the present invention, the method further includes step S200.
Step S200: when the compressor operates for a preset time, the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature, and the current value of the compressor of the air conditioner 100 are obtained.
In the embodiment of the present invention, the parameters obtained in step S200 are obtained after the compressor operates for a period of time, and the preset time for the compressor to operate may be flexibly set according to an actual working scenario, for example, the preset time is set to be 2 minutes, 3 minutes, 5 minutes, and the like.
The current inner coil temperature of the air conditioner 100 means an indoor unit coil temperature when the compressor is operated for a preset time; the current inner loop temperature of the air conditioner 100 refers to a temperature of an indoor environment when the compressor operates for a preset time; the current outer panel temperature of the air conditioner 100 means an outdoor unit coil temperature when the compressor is operated for a preset time; the current outer loop temperature of the air conditioner 100 refers to a temperature of an outdoor environment when the compressor is operated for a preset time. The current value of the compressor refers to a current value of a compressor bus bar when the compressor is operated for a preset time.
It should be noted that, after the compressor is operated for a preset time, if the valve is opened, the temperature of the inner and outer coils changes under the action of the refrigerant, which is different from the initial inner coil temperature and the initial outer coil temperature in the initial state, and is also different from the internal and external ambient temperatures at this time. If the valve is not opened, the difference between the current inner disc temperature and the initial inner disc temperature is small, the difference between the current outer disc temperature and the initial outer disc temperature is small, the difference between the current inner disc temperature and the current inner ring temperature is small, and the difference between the current outer disc temperature and the current outer ring temperature is small. In the embodiment of the invention, the current value of the compressor is also referred to so as to reduce misjudgment and ensure the use experience of a user. For the current value of the compressor, the frequency of the compressor is low and the temperature changes of the compressor and the heat exchanger pipe are small under the condition that the air conditioning unit normally operates at a low frequency, and if the temperature changes of the inner coil pipe and the outer coil pipe are judged, the misjudgment that the valve is not opened is likely to occur. That is to say, the embodiment of the invention fully considers various conditions of air conditioner operation, reduces misjudgment, and improves the accuracy of judgment, thereby being beneficial to improving user experience.
Step S300: and judging whether a valve of the air conditioner 100 is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value.
In step S300, it is determined whether there are two types of determination results for determining whether the valve of the air conditioner 100 is opened, and when it is determined that the valve of the air conditioner 100 is opened, the compressor does not need to be stopped, and the air conditioner 100 can continue to operate normally. If it is determined that the valve of the air conditioner 100 is not opened, step S400 is executed: the compressor is controlled to stop to overhaul the air conditioner 100 and the air conditioner valve is manually opened.
In the embodiment of the invention, in order to solve the problem of compressor failure caused by non-opening of the valve due to non-standard installation, the abnormal condition that the valve is not opened is indirectly judged by detecting the temperature change condition of the coil pipe and the current value of the compressor from the aspect of control, so that the irreparable damage of the air-conditioning compressor is avoided, the reliability of an air-conditioning system is improved, and the use experience of a user is also favorably ensured.
In an alternative embodiment, the step S300 may include the following sub-steps.
Substep S310: judging whether the following judgment conditions are simultaneously satisfied:
a. the current inner disc temperature and the current inner ring temperature meet a first judgment condition;
b. the current inner disc temperature and the initial inner disc temperature meet a second judgment condition;
c. the current value meets a third judgment condition;
d. the current outer disc temperature and the current outer ring temperature meet a fourth judgment condition;
e. the current outer disc temperature and the initial outer disc temperature meet a fifth judgment condition;
if the above-mentioned determination conditions a-e are satisfied at the same time, the substep S320 is executed to determine that the valve of the air conditioner 100 is not opened, and the subsequent step S400 is continuously executed.
If the above-mentioned determination conditions a-e cannot be satisfied simultaneously, it is determined that the compressor valve of the air conditioner 100 is opened, and the subsequent step S400 is not executed
It should be noted that, in the embodiment of the present invention, after the air conditioner compressor operates, the compressor compresses the refrigerant to apply work, and the current of the compressor is kept within a reasonable interval. After the refrigerant circulates, in a refrigeration mode, the refrigerant absorbs heat in the evaporator through evaporation and releases heat in the condenser through condensation, so that the temperature of the inner disc is lower than the indoor environment temperature, and the temperature of the outer disc is higher than the outdoor environment temperature; in the heating mode, the refrigerant condenses and releases heat in the evaporator, condenses and evaporates in the condenser and absorbs heat, the temperature of the inner disc is higher than the indoor environment temperature, and the temperature of the outer disc is lower than the outdoor environment temperature. When the valve is not opened, no refrigerant circulates in the system, the compressor does little work, and the current of the compressor is lower than a normal value. And no refrigerant is evaporated or condensed in the heat exchanger, so that the difference between the temperature of the inner disk and the temperature of the outer disk and the ambient temperature is small or almost zero.
As for the first judgment condition described above, it may include: the absolute value of the difference between the current inner disc temperature and the current inner ring temperature is less than or equal to a first judgment parameter; for example, the first determination condition may be expressed as:
|Tinner disc t-TInner ring t|≤A1
In the formula, TInner disc tIndicating the current inner disc temperature, T, at the preset time T of compressor operationInner ring tRepresenting the current inner ring temperature, A, of the compressor at a preset time t of operation1The first judgment parameter is a constant value and can be 0-3.
For the second determination condition described above, it may include: the absolute value of the difference between the current inner disc temperature and the initial inner disc temperature is less than or equal to a second judgment parameter; for example, the second determination condition may be expressed as:
|Tinner disc t-TInner disc 0|≤A2
In the formula, TInner disc tIndicating the current inner disc temperature, T, at the preset time T of compressor operationInner disc 0Denotes the initial inner disc temperature, A2Is a constant value, represents a second judgment parameter, and can take a value of 0-5.
As for the third judgment condition described above, it may include: the current value is less than or equal to a third judgment parameter; for example, the third determination condition may be expressed as:
IAC≤A3
in the formula IACRepresenting the current value, A, of the compressor at the preset time t of operation3The third judgment parameter is a constant value and can be 0-3.
As for the above fourth judgment condition, it may include: the absolute value of the difference between the current outer disc temperature and the current outer ring temperature is less than or equal to a fourth judgment parameter; for example, the fourth determination condition may be expressed as:
|Touter plate t-TOuter ring t|≤A4
In the formula, TOuter plate tIndicating the current outer disc temperature, T, at a preset time T of compressor operationOuter ring tRepresents the current outer ring temperature, A, at the preset time t of compressor operation4Is a constant value, represents a fourth judgment parameter, and takes on a valueAnd may range from 0 to 10.
As for the above-mentioned fifth judgment condition, it may include: the absolute value of the difference between the current outer disc temperature and the initial outer disc temperature is less than or equal to a fifth judgment parameter; for example, the fifth determination condition may be expressed as:
|Touter plate t-TOuter plate 0|≤A5
In the formula, tOuter plate TIndicating the current outer disc temperature, T, at a preset time T of compressor operationOuter plate 0Denotes the initial outer disc temperature, A5The value of the fifth judgment parameter is a constant value and can be 0-10.
In addition, in the case of the inverter air conditioner, the frequency of the compressor thereof varies. At this time, the method may further include:
step S201: the current operating frequency of the compressor is obtained. That is, on the basis of the above-mentioned step S200, the current operating frequency of the compressor, i.e., the frequency of the compressor, is re-acquired as a reference.
Step S301: and judging whether the current running frequency meets a sixth judgment condition.
If the sixth determination condition is satisfied, and the first determination condition, the second determination condition, the third determination condition, the fourth determination condition, and the fifth determination condition are also satisfied, and step S401 is executed: and judging that the compressor is not started.
That is, for the variable frequency air conditioner, the frequency of the compressor is added as a reference, when determining whether the valve is opened, the determination condition of the frequency of the compressor needs to be satisfied, and when all the determination conditions are satisfied, the valve is determined not to be opened, and the compressor is controlled to stop.
The sixth judgment condition may include that the current operation frequency is greater than or equal to a sixth judgment parameter, and the sixth judgment parameter is a constant value and may be 30 to 40.
In an alternative embodiment, after step S400, the method further includes step S500: and controlling the compressor to start after the compressor stops for a set time. In order to reduce the erroneous determination, the air conditioning valve is determined not to be opened for the first time and the compressor is controlled to stop processing, the compressor is controlled to start again after the set time according to the conventional stop processing, and the steps S100, S200 and S300 are executed again after the compressor is started.
In an optional embodiment, the control method further includes: step S600: if the valve of the air conditioner 100 is not opened, the step of controlling the compressor to stop is continuously executed twice, and/or the air conditioner 100 is judged to be in the failure of the valve not opening, and/or failure prompt information is generated and sent.
That is, in the case where the compressor is stopped twice consecutively, it is determined that the valve of the air conditioner 100 is in the unopened failure, and it is necessary to stop and open the valve at this time. Meanwhile, fault prompt information can be generated and can be displayed by a display box of the indoor unit or displayed through mobile phone application.
In addition, it should be noted that, in order to ensure the validity of the data, before the data is acquired, that is, before the step S100, whether the sensor has a fault may be detected and determined, in this case, the control method may further include:
step S001: when the compressor is started, acquiring the initial inner ring temperature;
step S002: whether the internal and external sensors of the air conditioner 100 are out of order is judged according to the initial inner ring temperature and the initial inner disc temperature.
If the indoor/outdoor unit sensor of the air conditioner 100 does not have a failure, step S100, step S200, or step S300 is executed.
It should be noted that the non-opening of the valve usually occurs after the first installation or removal of the air conditioner, i.e., the air conditioner is left standing for a long time. In the execution of the above step S300, it is necessary to eliminate the states of the temperature shutdown and the sensor abnormality: starting the air conditioner after the air conditioner is powered on for the first time or the compressor stops for a period of time (such as 30 minutes) after receiving a shutdown signal, detecting and eliminating the open circuit or short circuit fault of the sensors of the internal machine and the external machine, and eliminating the startup time | T of the compressorInner ring 0-TInner ring 0And | is less than or equal to T, wherein T is a constant value and can be 0-3. Under normal conditions, the temperature of the inner disk and the temperature of the inner ring are equal when the computer is started, and the difference value of the two is 0 theoretically, orAt normal inspection deviations, the differences slightly floated. However, if the floating deviation is too large, it indicates that the sensor is abnormal.
The embodiment of the invention provides an automatic protection control method for unopened air conditioner valves, which comprises the following steps: by obtaining the initial outer disc temperature and the initial inner disc temperature of the air conditioner 100, the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature of the air conditioner 100 and the current value of the compressor, whether the valve is opened or not is judged, and the compressor is controlled to stop when the valve is opened. In order to solve the problem of compressor failure caused by non-opening of the valve due to non-standard installation, the embodiment of the invention starts from the aspect of control, and indirectly judges the abnormal condition of the non-opening of the valve by detecting the parameters such as the temperature change condition of the coil pipe, the current value of the compressor and the like, thereby avoiding the irreparable damage of the air-conditioning compressor, improving the reliability of an air-conditioning system and being beneficial to ensuring the use experience of a user.
Referring to fig. 3, the present invention provides an automatic protection control device 10 for an unopened air conditioner valve, which includes a first obtaining module 11, a second obtaining module 12, a determining module 13 and a control module 14.
The first acquisition module 11: for acquiring an initial outer tray temperature and an initial inner tray temperature of the air conditioner 100 when a compressor of the air conditioner 100 is turned on.
It should be noted that, in the embodiment of the present invention, the above step S100 is executed by the first obtaining module 11.
The second acquisition module 12: the method is used for acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor of the air conditioner 100 when the compressor runs for the preset time.
It should be noted that, in the embodiment of the present invention, the above step S200 is executed by the second obtaining module 12.
The judging module 13: and is configured to determine whether a valve of the air conditioner 100 is opened according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature, and the current value.
It should be noted that, in the embodiment of the present invention, the step S300 is executed by the determining module 13.
The control module 14: if the valve of the air conditioner 100 is not opened, the compressor is controlled to stop.
It should be noted that, in the embodiment of the present invention, the step S400 is executed by the control module 14.
In this embodiment of the present invention, the determining module 13 is further configured to: judging whether the following judgment conditions are simultaneously satisfied:
a. the current inner disc temperature and the current inner ring temperature meet a first judgment condition;
b. the current inner disc temperature and the initial inner disc temperature meet a second judgment condition;
c. the current value meets a third judgment condition;
d. the current outer disc temperature and the current outer ring temperature meet a fourth judgment condition;
e. the current outer disc temperature and the initial outer disc temperature meet a fifth judgment condition;
if the above-mentioned determination conditions are simultaneously satisfied, it is determined that the valve of the air conditioner 100 is not opened.
It should be noted that, in the embodiment of the present invention, the sub-step S310 and the sub-step S320 are executed by the determining module 13.
In the embodiment of the present invention, the control module 14 is further configured to: and controlling the compressor to start after the compressor stops for a set time.
It should be noted that, in the embodiment of the present invention, the step S500 is executed by the control module 14.
In the embodiment of the present invention, the control module 14 is further configured to: if the valve of the air conditioner 100 is not opened, the step of controlling the compressor to stop is continuously executed twice, and/or the air conditioner 100 is judged to be in the failure of the valve not opening, and/or failure prompt information is generated and sent.
It should be noted that, in the embodiment of the present invention, the step S600 is executed by the control module 14.
The embodiment of the invention provides an automatic protection control device 10 for an unopened air conditioner valve, which comprises: by obtaining the initial outer disc temperature and the initial inner disc temperature of the air conditioner 100, the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature of the air conditioner 100 and the current value of the compressor, whether the valve is opened or not is judged, and the compressor is controlled to stop when the valve is opened. In order to solve the problem of compressor failure caused by non-opening of the valve due to non-standard installation, the embodiment of the invention starts from the aspect of control, and indirectly judges the abnormal condition of the non-opening of the valve by detecting the parameters such as the temperature change condition of the coil pipe, the current value of the compressor and the like, thereby avoiding the irreparable damage of the air-conditioning compressor, improving the reliability of an air-conditioning system and being beneficial to ensuring the use experience of a user.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. An automatic protection control method for the unopened of an air conditioner valve is used for an air conditioner, and is characterized by comprising the following steps:
when a compressor of the air conditioner is started, acquiring the initial outer disc temperature and the initial inner disc temperature of the air conditioner;
when the compressor runs for a preset time, acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor of the air conditioner;
judging whether a valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value;
and if the valve of the air conditioner is not opened, controlling the compressor to stop.
2. The method as claimed in claim 1, wherein the step of determining whether the valve of the air conditioner is open according to the initial outer disc temperature, the initial inner disc temperature, the current inner environment temperature, the current outer disc temperature, the current outer ring temperature and the current value comprises:
judging whether the following judgment conditions are simultaneously satisfied:
the current inner disc temperature and the current inner ring temperature meet a first judgment condition;
the current inner disc temperature and the initial inner disc temperature meet a second judgment condition;
the current value meets a third judgment condition;
the current outer disc temperature and the current outer ring temperature meet a fourth judgment condition;
the current outer disc temperature and the initial outer disc temperature meet a fifth judgment condition;
and if the judgment conditions are simultaneously satisfied, judging that the valve of the air conditioner is not opened.
3. The automatic protection control method for the unopened condition of an air conditioner valve according to claim 2, wherein the first judgment condition includes that an absolute value of a difference between the current inner disc temperature and the current inner ring temperature is less than or equal to a first judgment parameter;
the second judgment condition comprises that the absolute value of the difference between the current inner disc temperature and the initial inner disc temperature is less than or equal to a second judgment parameter;
the third judgment condition comprises that the current value is less than or equal to a third judgment parameter;
the fourth judgment condition comprises that the absolute value of the difference between the current outer disc temperature and the current outer ring temperature is less than or equal to a fourth judgment parameter;
the fifth judgment condition includes that an absolute value of a difference between the current outer disc temperature and the initial outer disc temperature is less than or equal to a fifth judgment parameter.
4. The automatic protection control method for the unopened condition of an air conditioner valve according to claim 2 or 3, further comprising:
acquiring the current operating frequency of the compressor;
judging whether the current operating frequency meets a sixth judgment condition;
and if the first judgment condition, the second judgment condition, the third judgment condition, the fourth judgment condition, the fifth judgment condition and the sixth judgment condition are all satisfied, judging that the compressor is not started.
5. The method as claimed in claim 4, wherein the sixth determination condition includes that the current operating frequency is greater than or equal to a sixth determination parameter.
6. The method for controlling automatic protection against non-opening of a valve of an air conditioner according to claim 1, wherein after the step of controlling the compressor to stop if the valve of the air conditioner is not opened, the method further comprises:
and controlling the compressor to start after the compressor stops for a set time.
7. The automatic protection control method for the unopened condition of an air conditioner valve according to claim 1 or 6, further comprising:
and if the valve of the air conditioner is not opened, under the condition that the step of controlling the compressor to stop is continuously executed twice, judging that the air conditioner is in a failure that the valve is not opened, and/or generating and sending failure prompt information.
8. The method of claim 1, wherein before the step of determining whether the valve of the air conditioner is open according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature, and the current value, the method further comprises:
acquiring initial inner ring temperature when the compressor is started;
judging whether an internal and external machine sensor of the air conditioner fails or not according to the initial inner ring temperature and the initial inner disc temperature;
and if the internal and external machine sensors of the air conditioner have no fault, executing the step of judging whether the valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current outer ring temperature and the current value.
9. An automatic protection control device for an unopened air conditioner valve, which is used for an air conditioner, and is characterized in that the control device comprises:
a first obtaining module: the air conditioner temperature control method comprises the steps of obtaining an initial outer disc temperature and an initial inner disc temperature of the air conditioner when a compressor of the air conditioner is started;
a second obtaining module: the air conditioner is used for acquiring the current inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value of the compressor when the compressor runs for a preset time;
a judging module: the controller is used for judging whether a valve of the air conditioner is opened or not according to the initial outer disc temperature, the initial inner disc temperature, the current inner ring temperature, the current outer disc temperature, the current outer ring temperature and the current value;
a control module: and if the valve of the air conditioner is not opened, controlling the compressor to stop.
10. An air conditioner comprising a controller having stored thereon an executable control program that, when read and executed, performs the method of any one of claims 1-8.
CN202110529554.0A 2021-05-14 2021-05-14 Automatic protection control method and device for unopened air conditioner valve and air conditioner Pending CN113124539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110529554.0A CN113124539A (en) 2021-05-14 2021-05-14 Automatic protection control method and device for unopened air conditioner valve and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110529554.0A CN113124539A (en) 2021-05-14 2021-05-14 Automatic protection control method and device for unopened air conditioner valve and air conditioner

Publications (1)

Publication Number Publication Date
CN113124539A true CN113124539A (en) 2021-07-16

Family

ID=76782610

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110529554.0A Pending CN113124539A (en) 2021-05-14 2021-05-14 Automatic protection control method and device for unopened air conditioner valve and air conditioner

Country Status (1)

Country Link
CN (1) CN113124539A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587359A (en) * 2021-07-23 2021-11-02 珠海格力电器股份有限公司 Control method and device for valve cut-off protection, controller and air conditioner
CN115930359A (en) * 2022-12-06 2023-04-07 海信空调有限公司 Air conditioner and stop valve fault detection method thereof
CN115950046A (en) * 2022-12-06 2023-04-11 海信空调有限公司 Air conditioner and stop valve fault detection method thereof
CN115949993A (en) * 2022-12-06 2023-04-11 海信空调有限公司 Air conditioner and stop valve fault detection method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387559A (en) * 2015-10-28 2016-03-09 珠海格力电器股份有限公司 Air conditioner and valve state detection method and device thereof
CN107477773A (en) * 2017-07-25 2017-12-15 广东美的制冷设备有限公司 Air conditioner and its control method and control device
CN109539456A (en) * 2017-09-21 2019-03-29 奥克斯空调股份有限公司 A kind of guard method of air conditioner room unit and device
CN111397090A (en) * 2020-03-26 2020-07-10 广东美的制冷设备有限公司 Air conditioner detection method, air conditioner and computer readable storage medium
CN112556090A (en) * 2020-12-11 2021-03-26 四川长虹空调有限公司 Method for detecting blockage of air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387559A (en) * 2015-10-28 2016-03-09 珠海格力电器股份有限公司 Air conditioner and valve state detection method and device thereof
CN107477773A (en) * 2017-07-25 2017-12-15 广东美的制冷设备有限公司 Air conditioner and its control method and control device
CN109539456A (en) * 2017-09-21 2019-03-29 奥克斯空调股份有限公司 A kind of guard method of air conditioner room unit and device
CN111397090A (en) * 2020-03-26 2020-07-10 广东美的制冷设备有限公司 Air conditioner detection method, air conditioner and computer readable storage medium
CN112556090A (en) * 2020-12-11 2021-03-26 四川长虹空调有限公司 Method for detecting blockage of air conditioning system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587359A (en) * 2021-07-23 2021-11-02 珠海格力电器股份有限公司 Control method and device for valve cut-off protection, controller and air conditioner
CN113587359B (en) * 2021-07-23 2022-06-07 珠海格力电器股份有限公司 Control method and device for valve cut-off protection, controller and air conditioner
CN115930359A (en) * 2022-12-06 2023-04-07 海信空调有限公司 Air conditioner and stop valve fault detection method thereof
CN115950046A (en) * 2022-12-06 2023-04-11 海信空调有限公司 Air conditioner and stop valve fault detection method thereof
CN115949993A (en) * 2022-12-06 2023-04-11 海信空调有限公司 Air conditioner and stop valve fault detection method thereof

Similar Documents

Publication Publication Date Title
CN113124539A (en) Automatic protection control method and device for unopened air conditioner valve and air conditioner
CN113432254B (en) Air conditioner blockage identification method and device, air conditioner and readable storage medium
CN111023429B (en) Control method and system and air conditioner
CN111023424B (en) Control method and system and air conditioner
WO2016063550A1 (en) Control device for air conditioning system, air conditioning system, and method for determining anomaly of air conditioning system
CN115013931A (en) Air conditioner, control method and device thereof, and computer readable storage medium
CN114322200B (en) Air conditioner refrigerant leakage detection method and device, air conditioner and storage medium
US20240142125A1 (en) Air conditioning system, abnormality estimation method for air conditioning system, air conditioner, and abnormality estimation method for air conditioner
JP7231866B1 (en) Anomaly detection device, method and program
CN111503948A (en) Multi-split air conditioning system, method and device for detecting leakage of refrigeration valve of multi-split air conditioning system and storage medium
WO2022014533A1 (en) Abnormality detection system and refrigerator, abnormality detection method, and abnormality detection program
CN111023418B (en) Pressure sensor abnormity control method and device and air conditioner
CN112710102B (en) Four-way valve air leakage detection method, storage medium and air conditioner
CN111121223B (en) Fluorine-lacking protection method of air conditioner, air conditioner and storage medium
CN113124541A (en) Method and device for judging reverse connection of expansion valve, controller and air conditioner
US11774955B1 (en) Information processing apparatus, information processing method, and program
CN110925948A (en) Detection method and system and air conditioner
CN111425987A (en) Indoor unit of air conditioner, control method, air conditioner and readable storage medium
CN114459119B (en) Air conditioner blockage detection method, device, equipment and storage medium
CN113606739B (en) Control method and device for air conditioner shutdown differential pressure balance and multi-split air conditioner
CN110398035B (en) Air conditioner indoor fan fault detection method and device and readable storage medium
CN113028585B (en) Control protection method, device and system for compressor
CN108444074B (en) Heating control method, device and system for heat recoverer in air conditioner
CN113639399B (en) Refrigerant missing fault determination method and device, air conditioner and computer storage medium
JP7197814B2 (en) Refrigerant leak detection system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210716