CN117128631A - Air conditioner control method and device, air conditioner and storage medium - Google Patents

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

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Publication number
CN117128631A
CN117128631A CN202210545861.2A CN202210545861A CN117128631A CN 117128631 A CN117128631 A CN 117128631A CN 202210545861 A CN202210545861 A CN 202210545861A CN 117128631 A CN117128631 A CN 117128631A
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CN
China
Prior art keywords
air conditioner
temperature
preset
fan
rotating speed
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Pending
Application number
CN202210545861.2A
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Chinese (zh)
Inventor
王金锋
谢李高
王晓宇
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.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Publication date
Application filed by Midea Group Co Ltd, GD Midea Air Conditioning Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN202210545861.2A priority Critical patent/CN117128631A/en
Priority to PCT/CN2022/101637 priority patent/WO2023221247A1/en
Publication of CN117128631A publication Critical patent/CN117128631A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • 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
    • F24F2140/50—Load
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention discloses an air conditioner control method, an air conditioner control device, an air conditioner and a storage medium, and belongs to the technical field of air conditioners, wherein the method comprises the following steps: determining a temperature difference value according to the current indoor environment temperature and the user set temperature; determining a maintenance time according to the temperature difference value; when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed; and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time. According to the invention, the maintenance time is calculated according to the temperature difference value, and the fan rotating speed of the indoor fan is regulated by combining the maintenance time, so that the condition that the load of the system is increased due to short circuit of return air to Wen Tingji or the evaporator is stopped at a high temperature is avoided, frequent stopping is avoided, and the stability and the use comfort of the system are improved.

Description

Air conditioner control method and device, air conditioner and storage medium
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a method and apparatus for controlling an air conditioner, and a storage medium.
Background
In the automatic wind mode, the rotation speed of the indoor fan is reduced to 1% at the lowest along with the rise of the room temperature, and at the moment, the system load is large, and the load can be adjusted by reducing the frequency and the rotation speed of the outdoor unit through the T2 pipe temperature judgment.
However, in the overload heating working condition, the frequency of the working condition is reduced to be too low, so that abnormal shutdown is easily caused by compressor stall, in the automatic wind mode, the wind speed is reduced along with the rising of the room temperature, the lowest wind speed is reduced to 1%, hot gas floats upwards, so that return air is short-circuited, the system load is increased, wen Tingji is achieved, or the evaporator is prevented from being high Wen Tingji, and the use comfort of consumers is affected by frequent shutdown.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, an air conditioner control device, an air conditioner and a storage medium, and aims to solve the technical problem of avoiding shutdown caused by return air short circuit.
In order to achieve the above object, the present invention provides an air conditioner control method, the air conditioner including an evaporator and an indoor fan, the evaporator being disposed outdoors, the indoor fan being disposed indoors, the air conditioner control method comprising:
determining a temperature difference value according to the current indoor environment temperature and the user set temperature;
determining a maintenance time according to the temperature difference value;
when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed;
and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
Optionally, the controlling the operation of the air conditioner according to the adjusted fan rotation speed and the maintenance time includes:
when the running time of the air conditioner running at the adjusted fan rotating speed reaches the maintaining time, judging whether the current evaporator tube temperature is larger than the first preset temperature threshold value or not;
and when the current evaporator tube temperature is smaller than or equal to the first preset temperature threshold value, returning to execute the step of adjusting the fan rotating speed of the indoor fan according to the first preset coefficient.
Optionally, after the determining whether the current evaporator tube temperature is greater than the first preset temperature threshold, the method further includes:
and when the current evaporator tube temperature is greater than the first preset temperature threshold, returning to execute the step of determining the maintenance time according to the temperature difference value.
Optionally, after the maintaining time is determined according to the temperature difference value, the method further includes:
judging whether the current evaporator tube temperature is larger than a second preset temperature threshold value or not when the current evaporator tube temperature is larger than or equal to the first preset temperature threshold value, wherein the second preset temperature threshold value is larger than the first preset temperature threshold value;
when the current evaporator tube temperature is larger than the second preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a second preset coefficient to obtain an adjusted fan rotating speed;
when the running time of the air conditioner running at the adjusted fan rotating speed reaches the maintaining time, judging whether the current evaporator tube temperature is smaller than the second preset temperature threshold value or not;
and when the current evaporator tube temperature is greater than or equal to the second preset temperature threshold, returning to the step of adjusting the fan rotating speed of the indoor fan according to the second preset coefficient.
Optionally, after the determining whether the current evaporator tube temperature is less than the second preset temperature threshold, the method further includes:
and when the current evaporator tube temperature is smaller than the second preset temperature threshold value, returning to execute the step of determining the maintenance time according to the temperature difference value.
Optionally, the air conditioner further comprises a compressor, and the compressor is arranged outdoors;
after determining the temperature difference according to the current indoor environment temperature and the user set temperature, the method further comprises the following steps:
and adjusting the compressor frequency of the compressor according to the temperature difference value so that the current evaporator tube temperature of the evaporator changes along with the change of the compressor frequency.
Optionally, the determining the maintenance time according to the temperature difference value includes:
searching a target temperature range corresponding to the temperature difference value;
acquiring a time value corresponding to the target temperature range;
and determining the maintenance time according to the time value.
In addition, in order to achieve the above object, the present invention also provides an air conditioner control device, including:
the information acquisition module is used for determining a temperature difference value according to the current indoor environment temperature and the user-set temperature;
a time determining module for determining a maintenance time according to the temperature difference value;
the fan adjusting module is used for adjusting the fan rotating speed of the indoor fan according to a first preset coefficient when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold value, so as to obtain the adjusted fan rotating speed;
and the air conditioner control module is used for controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
In addition, in order to achieve the above object, the present invention also provides an air conditioner including an evaporator and an indoor fan, the evaporator being disposed outdoors, the indoor fan being disposed indoors, the air conditioner further comprising: the air conditioner control system comprises a memory, a processor and an air conditioner control program which is stored in the memory and can run on the processor, wherein the air conditioner control program realizes the air conditioner control method when being executed by the processor.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon an air conditioner control program which, when executed by a processor, implements the air conditioner control method as described above.
In the air conditioner control method provided by the invention, a temperature difference value is determined according to the current indoor environment temperature and the user set temperature; determining a maintenance time according to the temperature difference value; when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed; and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time. According to the invention, the maintenance time is calculated according to the temperature difference value, and the fan rotating speed of the indoor fan is regulated by combining the maintenance time, so that the condition that the load of the system is increased due to short circuit of return air to Wen Tingji or the evaporator is stopped at a high temperature is avoided, frequent stopping is avoided, and the stability and the use comfort of the system are improved.
Drawings
FIG. 1 is a schematic diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of an air conditioner control method according to the present invention;
FIG. 3 is a schematic diagram of a system device according to an embodiment of the air conditioner control method of the present invention;
FIG. 4 is a schematic diagram of a control logic of an embodiment of a control method of an air conditioner according to the present invention;
FIG. 5 is a flowchart of a second embodiment of an air conditioner control method according to the present invention;
fig. 6 is a schematic functional block diagram of a first embodiment of an air conditioner control device according to the present invention.
Reference numerals illustrate:
reference numerals Name of the name Reference numerals Name of the name
100 Compressor 200 Four-way valve
300 Condenser 400 Evaporator
500 Indoor fan 600 Outdoor fan
700 Electronic expansion valve
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner includes an evaporator and an indoor fan, the evaporator is disposed outdoors, the indoor fan is disposed indoors, and the air conditioner may further include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as keys, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., wi-Fi interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the apparatus structure shown in fig. 1 is not limiting of the air conditioner and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and an air conditioner control program may be included in the memory 1005 as one type of storage medium.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting to an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting user equipment and communicating data with the user equipment; the apparatus of the present invention calls the air conditioner control program stored in the memory 1005 through the processor 1001 and executes the air conditioner control method provided by the embodiment of the present invention.
Based on the hardware structure, the embodiment of the air conditioner control method is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present invention.
In a first embodiment, the air conditioner includes an evaporator and an indoor fan, the evaporator is disposed outdoors, the indoor fan is disposed indoors, and the air conditioner control method includes:
and step S10, determining a temperature difference value according to the current indoor environment temperature and the user set temperature.
It should be noted that, the execution body of the present embodiment may be a control device of an air conditioner, or may be other devices that can implement the same or similar functions, and this embodiment is not limited thereto.
It should be noted that, the air conditioner in this embodiment may include, but is not limited to, an on-hook air conditioner, a cabinet air conditioner, a central air conditioner, and other air conditioners of various types or models, which are not limited in this embodiment. The user set temperature in this embodiment may be a required temperature set by a user on the air conditioner, and the user may adjust the user set temperature by using an air conditioner remote controller or an air conditioner control panel in the process of using the air conditioner, which is not limited in this embodiment.
It should be understood that, as shown in fig. 3, fig. 3 is a schematic diagram of a system device, and the air conditioner in this embodiment may include an indoor unit and an outdoor unit, where the indoor unit is disposed indoors and the outdoor unit is disposed outdoors. Wherein, indoor set includes: the indoor fan 500 and the condenser 300, and the outdoor unit includes: the compressor 100, the four-way valve 200, the evaporator 400, the outdoor fan 600, and the electronic expansion valve 700, and the air conditioner in the present embodiment may include other components in addition to those shown in fig. 3, which is not limited thereto.
It should be noted that the present embodiment is mainly applied to the heating mode and the automatic air mode, so the control logic in the present embodiment is executed when the air conditioner is operated in the automatic air heating mode, as shown in fig. 4, and fig. 4 is a schematic diagram of the control logic.
It can be understood that when the air conditioner is detected to be operated in the automatic air mode on-machine heating mode, the current indoor environment temperature T1, the current evaporator tube temperature T2, the fan rotation speed L of the indoor fan and the compressor operation frequency f can be read in real time.
It should be appreciated that after the current indoor environment temperature T1 and the latest user-set temperature Ttg are obtained, the temperature difference C may be calculated from the current indoor environment temperature T1 and the user-set temperature Ttg. For example, in a specific implementation, the difference between the current indoor ambient temperature T1 and the user set temperature Ttg may be calculated by means of c=ttg-T1 to determine the temperature difference C.
It should be appreciated that after the temperature difference C is obtained, the compressor operating frequency f may be adjusted based on the temperature difference C to vary the compressor operating frequency f and vary the current evaporator tube temperature T2 year old compressor frequency.
In a specific implementation, the frequency adjustment rule in this embodiment may be consistent with the existing rule, that is, as the temperature difference C decreases, the compressor operating frequency f decreases, which is not limited in this embodiment.
And step S20, determining the maintenance time according to the temperature difference value.
It should be noted that, in order to achieve a better control effect, the maintenance time may be recalculated according to the temperature difference during each cycle in this embodiment. The corresponding time values may be set for different temperature ranges in advance, and after the current temperature difference is determined, the corresponding time value may be found according to the target temperature range corresponding to the current temperature difference to determine the maintenance time.
And step S30, when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain the adjusted fan rotating speed.
The evaporator tube temperature in this embodiment may be the coil temperature of the evaporator, which is not limited in this embodiment.
It should be noted that, the first preset temperature threshold K1 and the second preset temperature threshold K2 may be preset according to actual situations, where the second preset temperature threshold K2 is greater than the first preset temperature threshold K1, and the first preset temperature thresholds K1 and K2 may be adjusted according to different models, and in this embodiment, K1 is 40 and K2 is 48 for example.
In a specific implementation, in addition to the fixed first preset temperature threshold K1 and the second preset temperature threshold K2, the settings of K1 and K2 may be adjusted according to the difference of the current indoor environment temperature T1, for example, a first value N1 and a second value N2 may be set, so that k1=t1+n1, k2=t1+n2, so that the first preset temperature threshold K1 is dynamically determined by the first value N1 and the current indoor environment temperature T1, and the second preset temperature threshold K2 is dynamically determined by the second value N2 and the current indoor environment temperature T2, which is not limited in this embodiment.
It should be appreciated that as the temperature differential C decreases, the compressor operating frequency f decreases gradually, so does the evaporator tube temperature T2, and as T2 decreases to K1, the indoor fan speed is adjusted.
It will be appreciated that the current evaporator tube temperature T2 may be compared with the first preset temperature threshold K1 to determine whether the current evaporator tube temperature T2 is less than the first preset temperature threshold K1, and the indoor fan speed is adjusted according to the first preset coefficient when the current evaporator tube temperature T2 is less than the first preset temperature threshold K1.
It should be noted that, in the present embodiment, the first preset coefficient may be adjustable according to the difference of the maximum rotational speeds of different models, and in the present embodiment, the maximum value of L is 1100rpm, so the first preset coefficient may be set to 0.9, which is not limited in the present embodiment.
It will be appreciated that the fan speed may be adjusted by multiplying the first preset coefficient by the fan speed of the indoor fan, for example, the fan speed may be adjusted by l=0.9×l, that is, the adjusted speed is the speed before adjustment×0.9.
And step S40, controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
It should be noted that, the operation of the air conditioner may be controlled according to the adjusted fan rotation speed, and the operation time of the air conditioner operating at the adjusted fan rotation speed is recorded, when the operation time reaches the maintenance time, it is determined whether the current evaporator tube temperature T2 is greater than the first preset temperature threshold K1, if T2 is greater than K1, the rotation speed is not adjusted at present, and the step of determining the maintenance time according to the temperature difference is performed again until the next time T2 is less than K1, and the rotation speed is adjusted again. If T2 is less than or equal to K1, returning to the step of adjusting the fan rotation speed of the indoor fan according to the first preset coefficient, and continuously adjusting the rotation speed in a mode of l=0.9xl.
It should be appreciated that in the automatic wind mode, when the indoor load increases due to the change in the ambient temperature, the evaporator tube temperature T2 also increases, and when T2 increases to K2, that is, if the current evaporator tube temperature T2 is equal to or greater than the first preset temperature threshold K1, it may also be determined whether the current evaporator tube temperature T2 is greater than the second preset temperature threshold K2, and if the current evaporator tube temperature T2 is greater than K2, the indoor fan speed is adjusted according to the second preset coefficient.
It should be noted that, in the present embodiment, the second preset coefficient may be adjustable according to the difference of the maximum rotational speeds of different models, and in the present embodiment, the maximum value of L is 1100rpm, so the second preset coefficient may be set to 100, which is not limited in this embodiment.
It will be appreciated that the fan speed may be adjusted by adding the second preset coefficient to the fan speed of the indoor fan, for example, the fan speed may be adjusted by l=l+100, that is, the adjusted speed is the pre-adjustment speed+100.
It should be noted that, the operation of the air conditioner may be controlled according to the adjusted fan rotation speed, and the operation time of the air conditioner operating at the adjusted fan rotation speed is recorded, when the operation time reaches the maintenance time, it is determined whether the current evaporator tube temperature T2 is less than the second preset temperature threshold K2, if T2 is less than K2, the rotation speed is not adjusted currently, and the step of determining the maintenance time according to the temperature difference is performed again until the next time T2 is less than K1, and the rotation speed is adjusted again. If T2 is more than or equal to K2, returning to the step of adjusting the fan rotating speed of the indoor fan according to the second preset coefficient, and continuously adjusting the rotating speed in a mode of L=L+100.
It should be understood that if the current evaporator tube temperature T2 is greater than or equal to the first preset temperature threshold K1 and less than or equal to the second preset temperature threshold K2, the step of determining the maintenance time according to the temperature difference is performed again, and the step of comparing the temperatures is continued until the situation that T2 < K1 or T2 > K2 occurs, and different rotational speed control strategies are performed, respectively.
It can be understood that the technical scheme defect of the technical scheme under the existing automatic wind heating mode is improved, and the following beneficial effects can be realized through the control logic of the scheme: 1. under the automatic wind mode, the evaporator runs at the highest wind level before the tube temperature T2 of the evaporator is reduced to K1, so that indoor air is fully stirred, the uniformity of the room temperature is improved, the difference between the air outlet temperature and the surrounding room temperature is reduced, and the hot-air heating effect is improved. 2. The indoor fan speed is regulated by multiplying by a coefficient in the regulation in the process of reducing the indoor fan speed, the regulation mode can be quickly regulated in the initial stage, the regulation amplitude is reduced along with the approach of the room temperature and the set temperature, the regulation stability is facilitated, the wind gear is reduced only when the evaporator tube temperature T2 is smaller than K1, the indoor evaporator is favorably subjected to full heat exchange, the energy-saving effect is improved, meanwhile, the system load is kept at a proper level during the low-frequency operation of the compressor, the high-temperature shutdown protection/compressor stall of the evaporator caused by the overhigh load is favorably prevented, and the system operation stability is improved.
In the embodiment, a temperature difference value is determined according to the current indoor environment temperature and the user-set temperature; determining a maintenance time according to the temperature difference value; when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed; and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time. According to the scheme, the maintenance time is calculated according to the temperature difference value, the fan rotating speed of the indoor fan is regulated by combining the maintenance time, the system load rising caused by the short circuit of return air can be avoided, the condition that the evaporator stops at a high temperature is caused to Wen Tingji, the frequent stop is avoided, and the system stability and the use comfort are improved.
In an embodiment, as shown in fig. 5, a second embodiment of the air conditioner control method of the present invention is proposed based on the first embodiment, the air conditioner further including a compressor, the compressor being disposed outdoors;
the step S20 includes:
step S201, searching a target temperature range corresponding to the temperature difference.
TABLE 1 temperature Range vs. time correspondence Table
C＝Ttg-T1 Tc
C＜1.5 150
1.5≤C＜3 120
C≥3 90
It should be noted that, table 1 is a table of correspondence between temperature ranges and time, corresponding temperature ranges may be set for different temperature differences in advance, for example, the first temperature range may be set to C < 1.5, the second temperature range may be set to 1.5C < 3, and the third temperature range may be set to C > 3.
It should be noted that, after the temperature ranges are set, corresponding time values may also be set for each temperature range, for example, the time value corresponding to the first time range is set to 150, the time value corresponding to the second time range is set to 120, and the time value corresponding to the third time range is set to 90.
It will be appreciated that after determining the current temperature difference, the target temperature range corresponding to the temperature difference may be found through table 1, for example, if the current temperature difference is 2, it may be determined that the target temperature range corresponding to the current temperature difference is the second temperature range according to table 1.
Step S202, obtaining a time value corresponding to the target temperature range.
It should be appreciated that after the target temperature range is determined in the above manner, the time value corresponding to the target temperature range may also be found according to table 1, for example, if the target temperature range is the second temperature range, the time value corresponding to the target temperature range is 120.
Step S203, determining the maintenance time according to the time value.
It should be understood that in this embodiment, the maintenance time may be determined according to the time value corresponding to the target temperature range, so that under the condition of different temperature differences, an appropriate maintenance time may be selected to perform subsequent adjustment of the indoor fan rotation speed, so as to achieve a better adjustment effect.
In this embodiment, the target temperature range corresponding to the temperature difference is searched, the time value corresponding to the target temperature range is obtained, and the maintenance time is determined according to the time value, so that the maintenance time can be accurately determined according to the target temperature range corresponding to the temperature difference, and the speed adjusting effect of the indoor fan is improved.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores an air conditioner control program, and the air conditioner control program realizes the steps of the air conditioner control method when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
In addition, referring to fig. 6, an embodiment of the present invention further provides an air conditioner control device, where the air conditioner control device includes:
the information acquisition module 10 is used for determining a temperature difference value according to the current indoor environment temperature and the user set temperature.
It should be noted that, the air conditioner in this embodiment may include, but is not limited to, an on-hook air conditioner, a cabinet air conditioner, a central air conditioner, and other air conditioners of various types or models, which are not limited in this embodiment. The user set temperature in this embodiment may be a required temperature set by a user on the air conditioner, and the user may adjust the user set temperature by using an air conditioner remote controller or an air conditioner control panel in the process of using the air conditioner, which is not limited in this embodiment.
It should be understood that, as shown in fig. 3, fig. 3 is a schematic diagram of a system device, and the air conditioner in this embodiment may include an indoor unit and an outdoor unit, where the indoor unit is disposed indoors and the outdoor unit is disposed outdoors. Wherein, indoor set includes: the indoor fan 500 and the condenser 300, and the outdoor unit includes: the compressor 100, the four-way valve 200, the evaporator 400, the outdoor fan 600, and the electronic expansion valve 700, and the air conditioner in the present embodiment may include other components in addition to those shown in fig. 3, which is not limited thereto.
It should be noted that the present embodiment is mainly applied to the heating mode and the automatic air mode, so the control logic in the present embodiment is executed when the air conditioner is operated in the automatic air heating mode, as shown in fig. 4, and fig. 4 is a schematic diagram of the control logic.
It can be understood that when the air conditioner is detected to be operated in the automatic air mode on-machine heating mode, the current indoor environment temperature T1, the current evaporator tube temperature T2, the fan rotation speed L of the indoor fan and the compressor operation frequency f can be read in real time.
It should be appreciated that after the current indoor environment temperature T1 and the latest user-set temperature Ttg are obtained, the temperature difference C may be calculated from the current indoor environment temperature T1 and the user-set temperature Ttg. For example, in a specific implementation, the difference between the current indoor ambient temperature T1 and the user set temperature Ttg may be calculated by means of c=ttg-T1 to determine the temperature difference C.
It should be appreciated that after the temperature difference C is obtained, the compressor operating frequency f may be adjusted based on the temperature difference C to vary the compressor operating frequency f and vary the current evaporator tube temperature T2 year old compressor frequency.
In a specific implementation, the frequency adjustment rule in this embodiment may be consistent with the existing rule, that is, as the temperature difference C decreases, the compressor operating frequency f decreases, which is not limited in this embodiment.
A time determination module 20 for determining a maintenance time according to the temperature difference.
It should be noted that, in order to achieve a better control effect, the maintenance time may be recalculated according to the temperature difference during each cycle in this embodiment. The corresponding time values may be set for different temperature ranges in advance, and after the current temperature difference is determined, the corresponding time value may be found according to the target temperature range corresponding to the current temperature difference to determine the maintenance time.
The fan adjusting module 30 is configured to adjust a fan rotation speed of the indoor fan according to a first preset coefficient when a current evaporator tube temperature of the evaporator is less than a first preset temperature threshold value, so as to obtain an adjusted fan rotation speed.
The evaporator tube temperature in this embodiment may be the coil temperature of the evaporator, which is not limited in this embodiment.
It should be noted that, the first preset temperature threshold K1 and the second preset temperature threshold K2 may be preset according to actual situations, where the second preset temperature threshold K2 is greater than the first preset temperature threshold K1, and the first preset temperature thresholds K1 and K2 may be adjusted according to different models, and in this embodiment, K1 is 40 and K2 is 48 for example.
In a specific implementation, in addition to the fixed first preset temperature threshold K1 and the second preset temperature threshold K2, the settings of K1 and K2 may be adjusted according to the difference of the current indoor environment temperature T1, for example, a first value N1 and a second value N2 may be set, so that k1=t1+n1, k2=t1+n2, so that the first preset temperature threshold K1 is dynamically determined by the first value N1 and the current indoor environment temperature T1, and the second preset temperature threshold K2 is dynamically determined by the second value N2 and the current indoor environment temperature T2, which is not limited in this embodiment.
It should be appreciated that as the temperature differential C decreases, the compressor operating frequency f decreases gradually, so does the evaporator tube temperature T2, and as T2 decreases to K1, the indoor fan speed is adjusted.
It will be appreciated that the current evaporator tube temperature T2 may be compared with the first preset temperature threshold K1 to determine whether the current evaporator tube temperature T2 is less than the first preset temperature threshold K1, and the indoor fan speed is adjusted according to the first preset coefficient when the current evaporator tube temperature T2 is less than the first preset temperature threshold K1.
It should be noted that, in the present embodiment, the first preset coefficient may be adjustable according to the difference of the maximum rotational speeds of different models, and in the present embodiment, the maximum value of L is 1100rpm, so the first preset coefficient may be set to 0.9, which is not limited in the present embodiment.
It will be appreciated that the fan speed may be adjusted by multiplying the first preset coefficient by the fan speed of the indoor fan, for example, the fan speed may be adjusted by l=0.9×l, that is, the adjusted speed is the speed before adjustment×0.9.
And the air conditioner control module 40 is used for controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
It should be noted that, the operation of the air conditioner may be controlled according to the adjusted fan rotation speed, and the operation time of the air conditioner operating at the adjusted fan rotation speed is recorded, when the operation time reaches the maintenance time, it is determined whether the current evaporator tube temperature T2 is greater than the first preset temperature threshold K1, if T2 is greater than K1, the rotation speed is not adjusted at present, and the step of determining the maintenance time according to the temperature difference is performed again until the next time T2 is less than K1, and the rotation speed is adjusted again. If T2 is less than or equal to K1, returning to the step of adjusting the fan rotation speed of the indoor fan according to the first preset coefficient, and continuously adjusting the rotation speed in a mode of l=0.9xl.
It should be appreciated that in the automatic wind mode, when the indoor load increases due to the change in the ambient temperature, the evaporator tube temperature T2 also increases, and when T2 increases to K2, that is, if the current evaporator tube temperature T2 is equal to or greater than the first preset temperature threshold K1, it may also be determined whether the current evaporator tube temperature T2 is greater than the second preset temperature threshold K2, and if the current evaporator tube temperature T2 is greater than K2, the indoor fan speed is adjusted according to the second preset coefficient.
It should be noted that, in the present embodiment, the second preset coefficient may be adjustable according to the difference of the maximum rotational speeds of different models, and in the present embodiment, the maximum value of L is 1100rpm, so the second preset coefficient may be set to 100, which is not limited in this embodiment.
It will be appreciated that the fan speed may be adjusted by adding the second preset coefficient to the fan speed of the indoor fan, for example, the fan speed may be adjusted by l=l+100, that is, the adjusted speed is the pre-adjustment speed+100.
It should be noted that, the operation of the air conditioner may be controlled according to the adjusted fan rotation speed, and the operation time of the air conditioner operating at the adjusted fan rotation speed is recorded, when the operation time reaches the maintenance time, it is determined whether the current evaporator tube temperature T2 is less than the second preset temperature threshold K2, if T2 is less than K2, the rotation speed is not adjusted currently, and the step of determining the maintenance time according to the temperature difference is performed again until the next time T2 is less than K1, and the rotation speed is adjusted again. If T2 is more than or equal to K2, returning to the step of adjusting the fan rotating speed of the indoor fan according to the second preset coefficient, and continuously adjusting the rotating speed in a mode of L=L+100.
It should be understood that if the current evaporator tube temperature T2 is greater than or equal to the first preset temperature threshold K1 and less than or equal to the second preset temperature threshold K2, the step of determining the maintenance time according to the temperature difference is performed again, and the step of comparing the temperatures is continued until the situation that T2 < K1 or T2 > K2 occurs, and different rotational speed control strategies are performed, respectively.
It can be understood that the technical scheme defect of the technical scheme under the existing automatic wind heating mode is improved, and the following beneficial effects can be realized through the control logic of the scheme: 1. under the automatic wind mode, the evaporator runs at the highest wind level before the tube temperature T2 of the evaporator is reduced to K1, so that indoor air is fully stirred, the uniformity of the room temperature is improved, the difference between the air outlet temperature and the surrounding room temperature is reduced, and the hot-air heating effect is improved. 2. The indoor fan speed is regulated by multiplying by a coefficient in the regulation in the process of reducing the indoor fan speed, the regulation mode can be quickly regulated in the initial stage, the regulation amplitude is reduced along with the approach of the room temperature and the set temperature, the regulation stability is facilitated, the wind gear is reduced only when the evaporator tube temperature T2 is smaller than K1, the indoor evaporator is favorably subjected to full heat exchange, the energy-saving effect is improved, meanwhile, the system load is kept at a proper level during the low-frequency operation of the compressor, the high-temperature shutdown protection/compressor stall of the evaporator caused by the overhigh load is favorably prevented, and the system operation stability is improved.
In the embodiment, a temperature difference value is determined according to the current indoor environment temperature and the user-set temperature; determining a maintenance time according to the temperature difference value; when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed; and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time. According to the scheme, the maintenance time is calculated according to the temperature difference value, the fan rotating speed of the indoor fan is regulated by combining the maintenance time, the system load rising caused by the short circuit of return air can be avoided, the condition that the evaporator stops at a high temperature is caused to Wen Tingji, the frequent stop is avoided, and the system stability and the use comfort are improved.
Other embodiments or specific implementation methods of the air conditioner control device according to the present invention may refer to the above method embodiments, and are not described herein.
It should be noted that, in this document, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in an estimator readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a smart device (which may be a mobile phone, estimator, air conditioner, or network air conditioner, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. An air conditioner control method, characterized in that the air conditioner includes an evaporator and an indoor fan, the evaporator is disposed outdoors, the indoor fan is disposed indoors, the air conditioner control method includes:
determining a temperature difference value according to the current indoor environment temperature and the user set temperature;
determining a maintenance time according to the temperature difference value;
when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a first preset coefficient to obtain an adjusted fan rotating speed; and
and controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
2. The air conditioner control method as set forth in claim 1, wherein said controlling the operation of the air conditioner according to the adjusted fan speed and the maintenance time includes:
when the running time of the air conditioner running at the adjusted fan rotating speed reaches the maintaining time, judging whether the current evaporator tube temperature is larger than the first preset temperature threshold value or not; and
and when the current evaporator tube temperature is smaller than or equal to the first preset temperature threshold value, returning to execute the step of adjusting the fan rotating speed of the indoor fan according to the first preset coefficient.
3. The air conditioner control method according to claim 2, wherein after said determining whether the current evaporator tube temperature is greater than the first preset temperature threshold value, further comprising:
and when the current evaporator tube temperature is greater than the first preset temperature threshold, returning to execute the step of determining the maintenance time according to the temperature difference value.
4. The air conditioner control method as set forth in claim 1, wherein after said determining a maintenance time according to said temperature difference value, further comprising:
judging whether the current evaporator tube temperature is larger than a second preset temperature threshold value or not when the current evaporator tube temperature is larger than or equal to the first preset temperature threshold value, wherein the second preset temperature threshold value is larger than the first preset temperature threshold value;
when the current evaporator tube temperature is larger than the second preset temperature threshold, adjusting the fan rotating speed of the indoor fan according to a second preset coefficient to obtain an adjusted fan rotating speed;
when the running time of the air conditioner running at the adjusted fan rotating speed reaches the maintaining time, judging whether the current evaporator tube temperature is smaller than the second preset temperature threshold value or not; and
and when the current evaporator tube temperature is greater than or equal to the second preset temperature threshold, returning to the step of adjusting the fan rotating speed of the indoor fan according to the second preset coefficient.
5. The air conditioner control method as set forth in claim 4, wherein after said determining whether said current evaporator tube temperature is less than said second preset temperature threshold, further comprising:
and when the current evaporator tube temperature is smaller than the second preset temperature threshold value, returning to execute the step of determining the maintenance time according to the temperature difference value.
6. The air conditioner control method as set forth in claim 1, wherein the air conditioner further comprises a compressor, the compressor being disposed outdoors;
after determining the temperature difference according to the current indoor environment temperature and the user set temperature, the method further comprises the following steps:
and adjusting the compressor frequency of the compressor according to the temperature difference value so that the current evaporator tube temperature of the evaporator changes along with the change of the compressor frequency.
7. The air conditioner control method as set forth in any one of claims 1 to 6, wherein said determining a maintenance time according to said temperature difference value includes:
searching a target temperature range corresponding to the temperature difference value;
acquiring a time value corresponding to the target temperature range; and
and determining the maintenance time according to the time value.
8. An air conditioner control device, characterized by comprising:
the information acquisition module is used for determining a temperature difference value according to the current indoor environment temperature and the user-set temperature;
a time determining module for determining a maintenance time according to the temperature difference value;
the fan adjusting module is used for adjusting the fan rotating speed of the indoor fan according to a first preset coefficient when the current evaporator tube temperature of the evaporator is smaller than a first preset temperature threshold value, so as to obtain the adjusted fan rotating speed; and
and the air conditioner control module is used for controlling the operation of the air conditioner according to the adjusted fan rotating speed and the maintenance time.
9. An air conditioner, characterized in that, the air conditioner includes evaporimeter and indoor fan, the evaporimeter sets up outdoors, indoor fan sets up indoors, the air conditioner still includes: a memory, a processor, and an air conditioner control program stored on the memory and operable on the processor, which when executed by the processor, implements the air conditioner control method according to any one of claims 1 to 7.
10. A storage medium having stored thereon an air conditioner control program which, when executed by a processor, implements the air conditioner control method according to any one of claims 1 to 7.
CN202210545861.2A 2022-05-19 2022-05-19 Air conditioner control method and device, air conditioner and storage medium Pending CN117128631A (en)

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JP2006138580A (en) * 2004-11-15 2006-06-01 Matsushita Electric Ind Co Ltd Air conditioner
CN106225183B (en) * 2016-09-14 2019-04-19 广东美的制冷设备有限公司 It is a kind of to reach warm halt control method and air conditioner suitable for air conditioner
CN111397126B (en) * 2020-03-27 2021-12-14 美的集团武汉暖通设备有限公司 Control method and device of air conditioner, air conditioner and medium
CN111442473A (en) * 2020-03-30 2020-07-24 青岛海尔空调器有限总公司 Control method of air conditioner
CN112880125A (en) * 2021-01-22 2021-06-01 珠海格力电器股份有限公司 Air conditioner control method and device, storage medium and air conditioner
CN113324325B (en) * 2021-05-12 2023-02-17 Tcl空调器(中山)有限公司 Accurate temperature control method and device of air conditioner and air conditioner
CN113280463B (en) * 2021-06-10 2022-04-22 宁波奥克斯电气股份有限公司 Air conditioner control method for improving indoor comfort, air conditioner and storage medium
CN113865005B (en) * 2021-10-28 2022-11-22 珠海格力电器股份有限公司 Defrosting shunting method
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