CN111578440B - Air conditioner heating high-temperature-prevention control method and device and air conditioner - Google Patents

Air conditioner heating high-temperature-prevention control method and device and air conditioner Download PDF

Info

Publication number
CN111578440B
CN111578440B CN202010390441.2A CN202010390441A CN111578440B CN 111578440 B CN111578440 B CN 111578440B CN 202010390441 A CN202010390441 A CN 202010390441A CN 111578440 B CN111578440 B CN 111578440B
Authority
CN
China
Prior art keywords
temperature
air conditioner
value
dangerous
preset
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.)
Active
Application number
CN202010390441.2A
Other languages
Chinese (zh)
Other versions
CN111578440A (en
Inventor
卢国军
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
Ningbo Aux Electric Co Ltd
Ningbo Aux Intelligent Commercial Air Conditioning Manufacturing 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 Ningbo Aux Electric Co Ltd, Ningbo Aux Intelligent Commercial Air Conditioning Manufacturing Co Ltd filed Critical Ningbo Aux Electric Co Ltd
Priority to CN202010390441.2A priority Critical patent/CN111578440B/en
Publication of CN111578440A publication Critical patent/CN111578440A/en
Application granted granted Critical
Publication of CN111578440B publication Critical patent/CN111578440B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • 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
    • 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)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a heating high-temperature-resistant control method for an air conditioner, which relates to the technical field of air conditioners and comprises the following steps: when the air conditioner operates in a heating mode, acquiring the temperature T of an inner machine pipeInner partThe initial value T of the temperature of the inner machine pipe at the starting time of the heating mode of the air conditioner0According to the initial value T of the temperature of the internal machine tube0Determining dangerous temperature value T of air conditioner entering high temperature protection programdWhen the temperature of the inner tube of the air conditioner is TInner partIncreased to a value greater than or equal to the dangerous temperature TdWhen the air conditioner is started, controlling the air conditioner to enter a high-temperature-resistant protection program; wherein, the initial value T of the internal pipe temperature0The larger the dangerous temperature value TdThe larger. According to the invention, different high-temperature-resistant judging conditions are formulated according to different internal machine pipe temperature initial values in the heating starting stage of the air conditioner by adding detection and judgment of the internal machine pipe temperature initial values, so that the situation that the judgment is wrong due to the fact that the pressure value is increased too high and is not stable before the air conditioner is started in a heating mode can be effectively avoided, the occurrence of pressure protection or compressor built-in overload protection is prevented, and the judgment accuracy is improved.

Description

Air conditioner heating high-temperature-prevention control method and device and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heating high-temperature-resistant control method and device for an air conditioner and the air conditioner.
Background
The air conditioner operates in the heating mode, resulting in the compressor discharge pressure and discharge temperature rising to a high level. At this time, load reduction processing needs to be performed on the air conditioning system to reduce the exhaust pressure and the exhaust temperature of the compressor and ensure the reliability of the air conditioner. The temperature of the inner machine pipe temperature is detected during heating, the outer fan is closed when the detected inner machine pipe temperature is larger than a dangerous temperature value, the unit enters high-temperature protection, the outer fan is started when the inner machine pipe temperature is reduced to be smaller than a safe temperature value, and the unit exits from the high-temperature protection.
However, in the conventional high temperature prevention control method of the air conditioner, the temperature of the indoor unit tube reacts slower than the exhaust pressure, and the change of the temperature of the indoor unit tube takes longer time than the change of the exhaust pressure. When the initial value of the temperature of the inner machine pipe is low, long time is needed for reaching the high temperature prevention protection, and the high temperature prevention is possibly invalid, so that the pressure protection or the compressor built-in overload protection is caused.
Disclosure of Invention
The invention solves the problem that the existing air conditioner has inaccurate high temperature prevention protection process, which is easy to cause high temperature failure to cause pressure protection or compressor built-in overload protection.
In order to solve the above problems, the present invention provides a heating high temperature prevention control method for an air conditioner, comprising:
when the air conditioner operates in a heating mode, acquiring the temperature T of an inner machine pipeInner partSaid internal machine pipe temperature TInner partInternal machine pipe temperature initial value T including starting time of heating mode of air conditioner0According to the initial value T of the temperature of the internal machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the air conditioner is started, controlling the air conditioner to enter a high-temperature-resistant protection program; wherein the initial value T of the temperature of the inner machine pipe0The larger the value of said dangerous temperature TdThe larger.
According to the invention, different high-temperature-resistant judging conditions are formulated according to different internal machine pipe temperature initial values in the heating starting stage of the air conditioner by adding detection and judgment of the internal machine pipe temperature initial values, so that the situation that the judgment is wrong due to the fact that the pressure value is increased too high and is not stable before the air conditioner is started in a heating mode can be effectively avoided, the occurrence of pressure protection or compressor built-in overload protection is prevented, and the judgment accuracy is improved.
Optionally, the method further comprises:
acquiring the continuous operation time t of the heating mode of the air conditionerrJudging the continuous operation time trWhether it is longer than a first preset time t1If said continuous operation duration trIs longer than the first preset time t1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1(ii) a If the continuous operation time length trIs less than or equal to the first preset time t1According to the initial value T of the temperature of the inner machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programd. After the air conditioner is heated for a period of time, the temperature increase condition of the coil pipe of the internal machine is basically the same as the exhaust pressure increase condition, and the dangerous temperature value T is saved through simple judgment of timedThe determination process of (2) simplifies the control method.
Optionally, the method further comprises: when the air conditioner runs in a heating mode, acquiring the frequency F of the air conditioner entering a high-temperature-resistant protection program, and if the frequency F is equal to 0, obtaining the initial value T of the temperature of the inner machine pipe according to the initial value T of the temperature of the inner machine pipe0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programd(ii) a If the frequency F is greater than 0, the dangerous temperature value TdValue a first preset dangerous temperature value Td1. When the air conditioner enters the high-temperature-prevention protection program for the second time, the temperature increase condition of the coil pipe of the internal machine is basically the same as the exhaust pressure increase condition, and the dangerous temperature value T is saved through simple judgment of timesdThe determination process of (2) simplifies the control method.
Optionally, when entering the high temperature protection program, the temperature T of the internal machine pipe is continuously obtainedInner partWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partReduced to less than or equal to a safe temperature value Td4And when the temperature is higher than the preset temperature, the high-temperature protection program is exited.
Optionally, the high temperature protection procedure includes turning off the outer fan and keeping the compressor and the inner fan running.
Optionally, the initial value T is set according to the temperature of the internal machine pipe0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdThe method comprises the following steps:
judging the initial value T of the temperature of the inner machine pipe0Whether it is greater than or equal to a first preset temperature value T1If the initial value T of the temperature of the inner machine pipe is0Greater than or equal to the first preset temperature value T1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1；
If the initial value T of the temperature of the inner machine pipe is0Is less than the first preset temperature value T1If so, continuing to judge the initial value T of the temperature of the internal machine tube0Whether it is greater than or equal to a second preset temperature value T2If the initial value T of the temperature of the inner machine pipe is0Greater than or equal to the second preset temperature value T2Then the dangerous temperature value TdValue of a second preset dangerous temperature value Td2(ii) a If the initial value T of the temperature of the inner machine pipe is0Is less than the second preset temperature value T2Then the dangerous temperature value TdValue of a third preset dangerous temperature value Td3. The smaller the initial value of the temperature of the inner machine pipe is, the smaller the value of the dangerous temperature value is, so that the time for entering the high-temperature-prevention protection program can be avoided, the judgment error caused by the fact that the pressure value is increased too high due to instability before the heating mode is started can be effectively avoided, the occurrence of pressure protection or compressor built-in overload protection is prevented, and the judgment accuracy is improved.
Optionally, the first preset dangerous temperature value Td1Is greater than the second preset dangerous temperature value Td2Is greater than the third preset dangerous temperature value Td3(ii) a The first preset temperature value T1Is greater than the second preset temperature value T2。
The invention also provides a heating high-temperature-resistant control device of the air conditioner, which comprises:
an acquisition unit for acquiring the temperature T of the air conditioner internal unit pipeInner partSaid internal machine pipe temperature TInner partIncluding the initial value T of the temperature of the inner machine tube0；
A control unit for acquiring the starting time of the heating mode of the air conditionerInitial value T of temperature of the inner machine pipe0According to the initial value T of the temperature of the internal machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdObtaining the temperature T of the inner machine pipeInner partWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the temperature of the air conditioner is higher than the preset temperature, the air conditioner is controlled to enter a high-temperature-prevention protection program, and the initial value T of the temperature of the inner machine pipe is0The larger the value of said dangerous temperature TdThe larger.
The invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and executed by a processor, the method realizes the heating and high temperature prevention control method of the air conditioner.
The invention also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the heating and high temperature prevention control method of the air conditioner.
Compared with the prior art, the beneficial effects of the air conditioner heating high temperature prevention control device, the computer readable storage medium and the air conditioner of the invention are the same as the beneficial effects of the air conditioner heating high temperature prevention control method compared with the prior art, and are not repeated herein.
Drawings
FIG. 1 is a schematic diagram of protection time when the temperature of an internal machine tube reaches a high temperature in the prior art;
FIG. 2 is a first schematic view of a high temperature prevention control method according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram of a high temperature prevention control method according to an embodiment of the present invention;
FIG. 4 is a third schematic view of a high temperature prevention control method according to an embodiment of the present invention;
FIG. 5 is a fourth schematic view of the high temperature prevention control method according to the embodiment of the present invention;
fig. 6 is a schematic diagram of step S3 according to the embodiment of the present invention.
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.
As shown in fig. 1, when the air conditioner is started to heat or defrosts, the air conditioner starts to operate from the heating mode until the temperature of the internal machine reaches a dangerous temperature value, and the time for the air conditioner to enter the high temperature protection is related to the initial value of the temperature of the internal machine. In the prior art, the dangerous temperature value in the high-temperature prevention control method of the air conditioner is the same, and under the same heating condition, the lower the temperature value of the initial internal machine pipe temperature is, the longer the time for increasing the internal machine pipe temperature to the dangerous temperature value is. Due to the fact that the time for increasing the temperature of the inner machine tube to the dangerous temperature value is different, particularly for the situation that the time is longer, the pressure protection or the compressor built-in overload protection is possibly caused due to the fact that the pressure is increased too high.
The embodiment provides a high temperature prevention control method for an air conditioner, which is used for acquiring an initial value T of an internal machine pipe temperature at the starting moment of a heating mode of the air conditioner when the air conditioner operates in the heating mode0According to the initial value T of the temperature of the internal machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdObtaining the temperature T of the inner machine tubeInner partWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the air conditioner is started, controlling the air conditioner to enter a high-temperature-resistant protection program; initial value T of temperature of the inner machine pipe0The larger the value of said dangerous temperature TdThe larger.
Specifically, as shown in fig. 2, the method includes the following steps:
step S1, operating the air conditioner in a heating mode, specifically, operating the air conditioner in a conventional heating mode, and operating the air conditioner in heating modes such as heating defrosting and the like;
step S2, obtaining an initial value T of the temperature of the internal machine pipe at the starting time of the heating mode of the air conditioner0；
Step S3, according to the initial value T of the temperature of the internal machine pipe0Determining dangerous temperature value T of air conditioner entering high temperature protection programdSpecifically, the initial value of the internal tube temperature T0The greater the critical temperatureValue TdThe larger;
step S4, air conditioner internal unit temperature TInner partWherein the internal machine temperature T can be obtained in real timeInner partAnd the temperature T of the internal machine can be passed when neededInner partObtaining the temperature T of the internal machine during judgmentInner part(ii) a Judging the temperature T of the internal machineInner partWhether it is greater than or equal to dangerous temperature value TdAt this time, a dangerous temperature value TdThe value is already according to the initial value T of the temperature of the internal machine tube0Determining if the internal machine temperature TInner partGreater than or equal to dangerous temperature value TdControlling the air conditioner to enter a high-temperature-resistant protection program; if the temperature T of the internal machineInner partLess than dangerous temperature value TdReturning to obtain new internal machine temperature T again after a period of timeInner partAnd the air conditioner enters a high-temperature protection program or exits a heating mode.
In the embodiment of the invention, different high temperature prevention judgment conditions (dangerous temperature value T) are formulated according to different internal machine pipe temperature initial values in the heating starting stage of the air conditioner by adding the detection and judgment of the internal machine pipe temperature initial valued) The method can effectively avoid the judgment error caused by unstable pressure value increase over high before the heating mode is started, prevent the occurrence of pressure protection or compressor built-in overload protection, and improve the judgment accuracy.
The embodiment also provides another specific implementation manner of the high temperature prevention control method, which is shown in fig. 3 and includes the following steps:
step S1, operating the air conditioner in a heating mode, specifically, operating the air conditioner in a conventional heating mode, and operating the air conditioner in heating modes such as heating defrosting and the like;
step S11, obtaining the continuous operation time t of the heating mode of the air conditionerrJudging the continuous operation time trWhether it is longer than a first preset time t1If said continuous operation duration trIs longer than the first preset time t1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1And directly entering step S4 for high temperature prevention judgment; if the continuous operation time length trIs less than or equal to the first preset timeLength t1Then, go to step S2; specifically, the first preset time period t1In the range of 2 to 5 minutes;
step S2, obtaining an initial value T of the temperature of the internal machine pipe at the starting time of the heating mode of the air conditioner0；
Step S3, according to the initial value T of the temperature of the internal machine pipe0Determining dangerous temperature value T of air conditioner entering high temperature protection programdSpecifically, the initial value of the internal tube temperature T0The larger the value of said dangerous temperature TdThe larger;
step S4, air conditioner internal unit temperature TInner partWherein the internal machine temperature T can be obtained in real timeInner partAnd the temperature T of the internal machine can be passed when neededInner partObtaining the temperature T of the internal machine during judgmentInner part(ii) a Judging the temperature T of the internal machineInner partWhether it is greater than or equal to dangerous temperature value TdAt this time, a dangerous temperature value TdThe value is already according to the initial value T of the temperature of the internal machine tube0Determining if the internal machine temperature TInner partGreater than or equal to dangerous temperature value TdControlling the air conditioner to enter a high-temperature-resistant protection program; if the temperature T of the internal machineInner partLess than dangerous temperature value TdThen, after a while, the process returns to step S11 to obtain a new continuous operation time t againrAnd the air conditioner enters a high-temperature protection program or exits a heating mode.
In the embodiment, the continuous operation time of the heating mode of the air conditioner is firstly judged, and the air conditioner operates for the first preset time t1Rear, inner machine tube temperature TInner partAfter the temperature is increased to a certain temperature value, if the high temperature phenomenon does not occur at the moment, the temperature does not need to be increased again through the internal machine tube temperature initial value T0Determining dangerous temperature value T of air conditioner entering high temperature protection programdPassing through a first preset dangerous temperature value Td1Temperature T of inner machine pipeInner partThe judgment can be carried out on the high temperature prevention of the air conditioner accurately, and the problem of overhigh pressure can not be caused. And, after the judgment result shows that the high temperature condition does not occur (the internal machine temperature T)Inner partLess than dangerous temperature value Td) Judging the continuous operation time again and carrying out a new round of judgment。
Preferably, this embodiment further provides another specific implementation of the high temperature prevention control method, which is shown in fig. 4 and includes the following steps:
step S1, operating the air conditioner in a heating mode, specifically, operating the air conditioner in a conventional heating mode, and operating the air conditioner in heating modes such as heating defrosting and the like;
step S12, obtaining the times F of the air conditioner entering the high temperature protection program, judging whether the times F is equal to 0, if the times F is equal to 0, entering step S2; if the frequency F is greater than 0, the dangerous temperature value TdValue a first preset dangerous temperature value Td1And directly entering step S4 for high temperature prevention judgment;
step S2, obtaining an initial value T of the temperature of the internal machine pipe at the starting time of the heating mode of the air conditioner0；
Step S3, according to the initial value T of the temperature of the internal machine pipe0Determining dangerous temperature value T of air conditioner entering high temperature protection programdSpecifically, the initial value of the internal tube temperature T0The larger the value of said dangerous temperature TdThe larger;
step S4, air conditioner internal unit temperature TInner partWherein the internal machine temperature T can be obtained in real timeInner partAnd the temperature T of the internal machine can be passed when neededInner partObtaining the temperature T of the internal machine during judgmentInner part(ii) a Judging the temperature T of the internal machineInner partWhether it is greater than or equal to dangerous temperature value TdAt this time, a dangerous temperature value TdThe value is already according to the initial value T of the temperature of the internal machine tube0Determining if the internal machine temperature TInner partGreater than or equal to dangerous temperature value TdControlling the air conditioner to enter a high-temperature-resistant protection program; if the temperature T of the internal machineInner partLess than dangerous temperature value TdThen, after a while, the process returns to step S11 to obtain a new continuous operation time t againrAnd the air conditioner enters a high-temperature protection program or exits a heating mode.
In the embodiment, the number of times of the high-temperature protection program of the air conditioner is judged, and the initial value T of the temperature of the pipe passing through the inner machine before the air conditioner enters the high-temperature protection program for the first time is only judged0Determining dangerous temperature value T of air conditioner entering high temperature protection programdAfter the first time (i.e. the times are more than 0), the initial value T of the temperature of the internal machine is not passed any more0Determining dangerous temperature value T of air conditioner entering high temperature protection programdPassing through a first preset dangerous temperature value Td1Temperature T of inner machine pipeInner partThe judgment can be carried out on the high temperature prevention of the air conditioner accurately, and the problem of overhigh pressure can not be caused.
Preferably, as shown in fig. 5, this embodiment further provides another specific implementation manner of the high temperature prevention control method, including the following steps:
step S1, operating the air conditioner in a heating mode, specifically, operating the air conditioner in a conventional heating mode, and operating the air conditioner in heating modes such as heating defrosting and the like;
step S13, obtaining the continuous operation time t of the air conditionerrAnd the times F of the air conditioner entering the high-temperature protection program are judged whether the times F are more than 0 or the continuous operation time trWhether it is longer than a first preset time t1If yes, the dangerous temperature value T is obtaineddValue a first preset dangerous temperature value Td1And directly entering step S4 for high temperature prevention judgment; if not, go to step S2;
step S2, obtaining an initial value T of the temperature of the internal machine pipe at the starting time of the heating mode of the air conditioner0；
Step S3, according to the initial value T of the temperature of the internal machine pipe0Determining dangerous temperature value T of air conditioner entering high temperature protection programdSpecifically, the initial value of the internal tube temperature T0The larger the value of said dangerous temperature TdThe larger;
step S4, air conditioner internal unit temperature TInner partWherein the internal machine temperature T can be obtained in real timeInner partAnd the temperature T of the internal machine can be passed when neededInner partObtaining the temperature T of the internal machine during judgmentInner part(ii) a Judging the temperature T of the internal machineInner partWhether it is greater than or equal to dangerous temperature value TdAt this time, a dangerous temperature value TdThe value is already according to the initial value T of the temperature of the internal machine tube0Determining if the internal machine temperature TInner partIs greater thanOr equal to dangerous temperature value TdControlling the air conditioner to enter a high-temperature-resistant protection program; if the temperature T of the internal machineInner partLess than dangerous temperature value TdThen, after a while, the process returns to step S11 to obtain a new continuous operation time t againrAnd the air conditioner enters a high-temperature protection program or exits a heating mode.
The embodiment judges the continuous operation time of the heating mode of the air conditioner through the times of the high-temperature-resistant protection program of the air conditioner and the continuous operation time of the heating mode of the air conditioner at the same time, and the temperature T of the inner machine pipe cannot occurInner partHeating to dangerous temperature TdOn the basis of needing longer time, the initial value T of the temperature of the inner machine pipe is not passed0Determining dangerous temperature value T of air conditioner entering high temperature protection programdAnd the control process is simplified.
Preferably, as shown in fig. 2, the high temperature protection procedure described in this embodiment includes turning off the outer fan and keeping the compressor and the inner fan running. In this embodiment, when entering the high temperature protection program, the temperature T of the internal machine tube is continuously obtainedInner partWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partReduced to less than or equal to a safe temperature value Td4And when the temperature is high, the high-temperature protection program is withdrawn, and the outer fan is restarted to ensure the normal operation of heating.
Specifically, referring to fig. 6, the initial value T according to the temperature of the internal machine according to the embodiment0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdThe method comprises the following steps:
step S3, judging the initial value T of the temperature of the internal machine pipe0Whether it is greater than or equal to a first preset temperature value T1If the initial value T of the temperature of the inner machine pipe is0Greater than or equal to the first preset temperature value T1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1And proceeds to step S4;
if the initial value T of the temperature of the inner machine pipe is0Is less than the first preset temperature value T1If so, continuing to judge the initial value T of the temperature of the internal machine tube0Whether it is greater than or equal to a second preset temperature value T2If saidInitial value T of inner machine pipe temperature0Greater than or equal to the second preset temperature value T2Then the dangerous temperature value TdValue of a second preset dangerous temperature value Td2And proceeds to step S4; if the initial value T of the temperature of the inner machine pipe is0Is less than the second preset temperature value T2Then the dangerous temperature value TdValue of a third preset dangerous temperature value Td3And proceeds to step S4.
Preferably, in this embodiment, the first preset temperature value T1In the range of 10 to 20 ℃; a second preset temperature value T2In the range of 0 to 10 ℃; the first preset dangerous temperature value Td1Is greater than the second preset dangerous temperature value Td2Is greater than the third preset dangerous temperature value Td3Greater than the safety temperature value Td4。
In addition to the above embodiments, the present embodiment further provides a heating and high temperature prevention control device for an air conditioner, including:
an acquisition unit for acquiring the temperature T of the air conditioner internal unit pipeInner partSaid internal machine pipe temperature TInner partIncluding the initial value T of the temperature of the inner machine tube0；
A control unit for obtaining the initial value T of the temperature of the inner machine pipe at the starting time of the heating mode of the air conditioner0According to the initial value T of the temperature of the internal machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdObtaining the temperature T of the inner machine pipeInner partWhen the temperature T of the inner machine pipe of the air conditioner is lowerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the temperature of the air conditioner is higher than the preset temperature, the air conditioner is controlled to enter a high-temperature-prevention protection program, and the initial value T of the temperature of the inner machine pipe is0The larger the value of said dangerous temperature TdThe larger.
Preferably, the present embodiment further provides a computer-readable storage medium, which stores a computer program, and when the computer program is read and executed by a processor, the method for controlling heating and high temperature protection of an air conditioner according to any one of the above embodiments is implemented.
The embodiment also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs to realize the heating and high temperature prevention control method of the air conditioner.
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. A heating high-temperature-resistant control method of an air conditioner is characterized by comprising the following steps:
when the air conditioner operates in a heating mode, acquiring the temperature T of an inner machine pipeInner partSaid internal machine pipe temperature TInner partInternal machine pipe temperature initial value T including starting time of heating mode of air conditioner0；
According to the initial value T of the temperature of the inner machine pipe0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programd；
When the temperature T of the inner machine pipe of the air conditionerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the air conditioner is started, controlling the air conditioner to enter a high-temperature-resistant protection program; wherein the initial value T of the temperature of the inner machine pipe0The larger the value of said dangerous temperature TdThe larger.
2. The heating and high temperature prevention control method of an air conditioner as set forth in claim 1, further comprising:
acquiring the continuous operation time t of the heating mode of the air conditionerrJudging the continuous operation time trWhether it is longer than a first preset time t1；
If the continuous operation time length trIs longer than the first preset time t1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1；
If the continuous operation time length trIs less than or equal to the firstA preset time duration t1According to the initial value T of the temperature of the inner machine tube0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programd。
3. The heating and high temperature prevention control method of an air conditioner as set forth in claim 1, further comprising:
when the air conditioner operates in a heating mode, acquiring the frequency F of the air conditioner entering a high-temperature-resistant protection program;
if the frequency F is equal to 0, according to the initial value T of the temperature of the inner machine pipe0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programd；
If the frequency F is greater than 0, the dangerous temperature value TdValue a first preset dangerous temperature value Td1。
4. The heating and high temperature prevention control method of an air conditioner as set forth in claim 1, further comprising:
when entering the high-temperature protection program, continuously acquiring the temperature T of the inner machine pipeInner part；
When the temperature T of the inner machine pipe of the air conditionerInner partReduced to less than or equal to a safe temperature value Td4And when the temperature is higher than the preset temperature, the high-temperature protection program is exited.
5. The heating and high temperature prevention control method of an air conditioner according to claim 1, wherein the high temperature prevention protection program includes turning off an outer fan and keeping a compressor and an inner fan operating.
6. The heating and high temperature prevention control method of air conditioner according to any one of claims 1 to 5, wherein the initial value T is based on the temperature of the inner unit0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdThe method comprises the following steps:
judging the initial value T of the temperature of the inner machine pipe0Whether it is greater than or equal to a first preset temperature value T1If the initial value T of the temperature of the inner machine pipe is0Greater than or equal to the first preset temperature value T1Then the dangerous temperature value TdValue a first preset dangerous temperature value Td1；
If the initial value T of the temperature of the inner machine pipe is0Is less than the first preset temperature value T1If so, continuing to judge the initial value T of the temperature of the internal machine tube0Whether it is greater than or equal to a second preset temperature value T2If the initial value T of the temperature of the inner machine pipe is0Greater than or equal to the second preset temperature value T2Then the dangerous temperature value TdValue of a second preset dangerous temperature value Td2；
If the initial value T of the temperature of the inner machine pipe is0Is less than the second preset temperature value T2Then the dangerous temperature value TdValue of a third preset dangerous temperature value Td3。
7. The heating and high temperature prevention control method of air conditioner according to claim 6, wherein the first preset dangerous temperature value Td1Is greater than the second preset dangerous temperature value Td2The second preset dangerous temperature value Td2Is greater than the third preset dangerous temperature value Td3(ii) a The first preset temperature value T1Is greater than the second preset temperature value T2。
8. The utility model provides an air conditioner heats and prevents high temperature controlling means which characterized in that includes:
an acquisition unit for acquiring the temperature T of the air conditioner internal unit pipeInner partSaid internal machine pipe temperature TInner partIncluding the initial value T of the temperature of the inner machine tube0；
A control unit for controlling the temperature of the inner machine tube according to the initial value T0Determining dangerous temperature value T of the air conditioner entering into high temperature protection programdAnd when the internal unit tube temperature T of the air conditionerInner partIncreasing to a value greater than or equal to said dangerous temperature TdWhen the temperature of the air conditioner is higher than the preset temperature, the air conditioner is controlled to enter a high-temperature-prevention protection program, and the initial value T of the temperature of the inner machine pipe is0The greater the critical temperatureValue TdThe larger.
9. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which is read and executed by a processor, and implements the heating high temperature prevention control method of an air conditioner according to any one of claims 1 to 7.
10. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the heating high temperature prevention control method of the air conditioner according to any one of claims 1 to 7.
CN202010390441.2A 2020-05-09 2020-05-09 Air conditioner heating high-temperature-prevention control method and device and air conditioner Active CN111578440B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010390441.2A CN111578440B (en) 2020-05-09 2020-05-09 Air conditioner heating high-temperature-prevention control method and device and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010390441.2A CN111578440B (en) 2020-05-09 2020-05-09 Air conditioner heating high-temperature-prevention control method and device and air conditioner

Publications (2)

Publication Number Publication Date
CN111578440A CN111578440A (en) 2020-08-25
CN111578440B true CN111578440B (en) 2021-10-15

Family

ID=72118795

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010390441.2A Active CN111578440B (en) 2020-05-09 2020-05-09 Air conditioner heating high-temperature-prevention control method and device and air conditioner

Country Status (1)

Country Link
CN (1) CN111578440B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2850523B2 (en) * 1990-10-31 1999-01-27 株式会社富士通ゼネラル Air conditioner
JPH08285356A (en) * 1995-04-10 1996-11-01 Fujitsu General Ltd Air conditioner
CN106152382B (en) * 2015-04-01 2019-05-31 青岛海尔空调器有限总公司 A kind of control method and system for preventing frequency of air condition compressor to fluctuate
CN105180359B (en) * 2015-09-02 2018-04-20 珠海格力电器股份有限公司 A kind of high temperature-proof control method, device and air conditioner
CN105698337B (en) * 2016-02-02 2019-07-09 珠海格力电器股份有限公司 A kind of air-conditioning start-up phase compress control method and device
CN110645671A (en) * 2019-10-24 2020-01-03 宁波奥克斯电气股份有限公司 Air conditioner high temperature prevention control method and device and air conditioner
CN111023409A (en) * 2019-11-25 2020-04-17 宁波奥克斯电气股份有限公司 High-temperature-prevention control method and system, storage medium and air conditioner

Also Published As

Publication number Publication date
CN111578440A (en) 2020-08-25

Similar Documents

Publication Publication Date Title
CN113137694B (en) Heating control method and device of air conditioner and air conditioner
CN110553365B (en) Control method of air conditioner, air conditioner and storage medium
CN113701307B (en) Refrigerant shortage protection control method for variable frequency air conditioner and air conditioner
CN112032935A (en) Control method for fluorine-lacking protection of air conditioner, air conditioner and storage medium
WO2019148972A1 (en) Method and device for controlling formation of condensate water, and computer storage medium
CN114001446B (en) Air conditioner control method, air conditioner and computer readable storage medium
WO2021036872A1 (en) Air conditioning heating control method, device, air conditioner, and storage medium
CN111023420A (en) Compressor quick start control method and device, air conditioner and storage medium
CN112963941A (en) Air conditioner, control method thereof and defrosting control device
CN113483450B (en) Control method, device and equipment of air conditioner and storage medium
CN111043708A (en) Air conditioner control method and device, air conditioner and computer readable storage medium
CN108151232B (en) Operation control method, operation control device, air conditioner and computer readable storage medium
CN111023423B (en) Control method and device for electronic expansion valve of air conditioner, medium and air conditioner
CN111578440B (en) Air conditioner heating high-temperature-prevention control method and device and air conditioner
CN111397142A (en) Control method and device for electronic expansion valve of air conditioner, air conditioner and storage medium
CN114234383A (en) Air conditioner control method and device
CN110887178A (en) Control method for heating shutdown of multi-split air conditioner, computer readable storage medium and air conditioner
CN110686355B (en) Air conditioner heating control method and device, air conditioner and computer readable storage medium
CN110017580B (en) Fan coil and cold and heat source equipment mode interlocking control method and device and air conditioner
CN109028453B (en) Air conditioner and air conditioner control method
CN113465114B (en) Control method and device for preventing low-voltage error protection and air conditioner
CN113375273B (en) Compressor frequency control method and device and air conditioner
CN115200163A (en) Air conditioner control method and device and air conditioner
CN112032930B (en) Compressor protection method and device, storage medium and electronic equipment
CN107084509B (en) Air conditioner additional refrigerant control method and device and air conditioner

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
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20221020

Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District

Patentee after: NINGBO AUX ELECTRIC Co.,Ltd.

Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd.

Address before: 315000 No.1166 Mingguang North Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province

Patentee before: NINGBO AUX ELECTRIC Co.,Ltd.

Patentee before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd.