CN113124533B - Air conditioner refrigeration control method and device and air conditioner - Google Patents

Air conditioner refrigeration control method and device and air conditioner Download PDF

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Publication number
CN113124533B
CN113124533B CN202110360012.5A CN202110360012A CN113124533B CN 113124533 B CN113124533 B CN 113124533B CN 202110360012 A CN202110360012 A CN 202110360012A CN 113124533 B CN113124533 B CN 113124533B
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temperature
air conditioner
frequency
target
preset
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CN113124533A (en
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朱晨辉
魏华锋
秦宪
乐航
肖世虎
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention discloses an air conditioner refrigeration control method, an air conditioner refrigeration control device and an air conditioner, wherein the air conditioner refrigeration control method comprises the following steps: detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner; when the refrigerating operation time reaches a first preset time, monitoring the outdoor environment temperature, and judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not; if so, monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner, determining the target frequency of the compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency. The invention can adjust the running frequency of the compressor in time according to the running load of the target air conditioner, so as to ensure the refrigerating effect of the indoor environment and the running stability of the target air conditioner and improve the refrigerating comfort of the target air conditioner.

Description

Air conditioner refrigeration control method and device and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner refrigeration control method and device and an air conditioner.
Background
With the wider application of air conditioners, the comfort requirement of people on the air conditioners is higher and higher. At present, the air conditioner is in the refrigeration operation process, and the compressor frequency can reduce along with outdoor ambient temperature's rising gradually, however the air conditioner is because outdoor ambient temperature is higher in the refrigeration operation process in summer, if control compressor frequency risees and leads to the air conditioner to burn out easily, if control compressor operation frequency reduces to lead to the air conditioner refrigeration volume under the high temperature operating mode not enough easily, refrigeration effect is relatively poor, the refrigeration operation stability of air conditioner is lower, and then has reduced the refrigeration travelling comfort of air conditioner.
Disclosure of Invention
In order to solve the problems, the invention provides an air conditioner refrigeration control method, an air conditioner refrigeration control device and an air conditioner, which can adjust the operation frequency of a compressor in time according to the operation load of a target air conditioner so as to ensure the refrigeration effect of an indoor environment and the stability of the operation of the target air conditioner and improve the refrigeration comfort of the target air conditioner.
According to an embodiment of the present invention, in one aspect, there is provided an air conditioner refrigeration control method, including: detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner; when the refrigerating operation time reaches a first preset time, monitoring the outdoor environment temperature, and judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not; if so, monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner, determining the target frequency of the compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency.
Through adopting above-mentioned technical scheme, when the air conditioner got into stable high temperature refrigeration operation process, monitoring indoor environment temperature and target air conditioner's outer dish temperature can realize the monitoring to target air conditioner running load, through the running frequency of the running load according to target air conditioner in time adjusting the compressor to guarantee the refrigeration effect of indoor environment and the stability of target air conditioner operation, and then promote the refrigeration travelling comfort of air conditioner.
Preferably, the step of determining the target frequency of the compressor of the target air conditioner according to the indoor ambient temperature and the outer panel temperature includes: when the temperature of the outer disc is greater than or equal to a second preset temperature and less than a third preset temperature, judging whether the indoor environment temperature is less than a fourth preset temperature, if so, acquiring the current temperature of the outer disc to obtain a first outer disc temperature, and acquiring the temperature of the outer disc before a second preset time to obtain a second outer disc temperature; and calculating a temperature difference value between the first outer disc temperature and the second outer disc temperature, and determining a target frequency of a compressor of the target air conditioner according to the temperature difference value.
By adopting the technical scheme, the temperature difference value between the current outer disc temperature and the outer disc temperature before the second preset time is calculated, the frequency of the compressor can be controlled according to the historical change condition of the outer disc temperature, the frequency lag control on the compressor is avoided, the monitoring on the load change condition of the target air conditioner can be realized, the frequency of the compressor of the target air conditioner is controlled according to the temperature difference value of the outer disc, and the stability of the air conditioner caused by the overlarge fluctuation of the air conditioner load on the operation can be avoided.
Preferably, the step of determining a target frequency of a compressor of the target air conditioner according to the temperature difference value includes: acquiring the current compressor frequency of the target air conditioner; when the temperature difference is greater than or equal to a fifth preset temperature, reducing the current compressor frequency by a first preset frequency to obtain the target frequency; and when the temperature difference value is smaller than the fifth preset temperature, increasing the current compressor frequency by a second preset frequency to obtain the target frequency.
By adopting the technical scheme, when the temperature of the outer disc is greatly increased, the compressor of the target air conditioner is controlled to reduce the first preset frequency, so that the situation that air conditioner devices are burnt due to overhigh temperature of the outer disc can be avoided, and the running reliability of the air conditioning unit is improved; when the temperature of the outer disc increases in a small range, the frequency of the compressor of the target air conditioner is controlled to increase the second preset frequency, so that the refrigeration effect of the target air conditioner can be further improved, and the comfort of air conditioner refrigeration is further improved.
Preferably, the air-conditioning refrigeration control method further includes: and when the indoor environment temperature is greater than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by a third preset frequency to obtain the target frequency.
By adopting the technical scheme, when the indoor environment temperature is greater than or equal to the fourth preset temperature, the frequency of the compressor of the target air conditioner is controlled to be reduced, the air conditioner device can be prevented from being damaged due to overhigh air conditioner load, the refrigeration load of the target air conditioner is reduced, and the refrigeration running stability of the target air conditioner is improved.
Preferably, the air-conditioning refrigeration control method further includes: when the temperature of the outer disc is lower than the second preset temperature and the indoor environment temperature is higher than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and taking the current compressor frequency as the target frequency; and when the temperature of the outer disc is smaller than the second preset temperature and the indoor environment temperature is smaller than the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and increasing the current compressor frequency by the fourth preset frequency to obtain the target frequency.
By adopting the technical scheme, when the temperature of the outer disc is lower, the refrigerating load state of the air conditioning unit is further judged by judging the indoor environment temperature, and when the indoor environment temperature is greater than or equal to the fourth preset temperature, the target air conditioning compressor is controlled to maintain the current frequency operation, so that the refrigerating operation stability of the target air conditioning can be improved; when the indoor environment temperature is lower than the fourth preset temperature, the frequency of the compressor of the target air conditioner is controlled to be increased, the refrigerating effect can be improved as much as possible on the basis of ensuring the stability of air-conditioning refrigeration operation, the refrigerating effect is optimal, and therefore refrigerating experience of a user is improved.
Preferably, the air-conditioning refrigeration control method further includes: and when the temperature of the outer disc is greater than or equal to the third preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by a fifth preset frequency to obtain the target frequency.
By adopting the technical scheme, when the temperature of the outer disc of the target air conditioner is higher, the frequency of the compressor of the target air conditioner is controlled to reduce the fifth preset frequency, so that internal devices of the target air conditioner can be prevented from being burnt, and the reliability of the target air conditioner is improved.
Preferably, the air-conditioning refrigeration control method further includes: and when the compressor of the target air conditioner runs for a third preset time at the target frequency, returning to execute the step of judging whether the outdoor environment temperature is greater than or equal to the first preset temperature.
By adopting the technical scheme, after the compressor of the target air conditioner is subjected to frequency increasing, frequency reducing or frequency maintaining operation for a period of time, whether the target air conditioner is high-temperature refrigeration or not is judged, so that the phenomenon that the unit is unstable in operation due to repeated frequency increasing or frequency reducing of the compressor of the target air conditioner can be avoided, and the stability of high-temperature refrigeration control of the target air conditioner is improved.
According to an embodiment of the present invention, in another aspect, there is provided an air conditioner refrigeration control device, including: the first detection module is used for detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner; the second detection module is used for monitoring the outdoor environment temperature when the refrigerating operation time reaches a first preset time, and judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not; and the control module is used for monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner when the outdoor environment temperature is more than or equal to a first preset temperature, determining the target frequency of a compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency.
According to an embodiment of the present invention, in another aspect, there is provided an air conditioner including a computer readable storage medium storing a computer program and a processor, the computer program being read by the processor and when executed, implementing the method according to any one of the first aspect.
According to an embodiment of the present invention, in another aspect, a computer-readable storage medium is provided, which stores a computer program, which when read and executed by a processor, implements the method according to any one of the first aspect.
The invention has the following beneficial effects: the refrigerating operation time of the air conditioner reaches the first preset time, the outdoor environment temperature reaches the first preset temperature, namely when the air conditioner enters the stable high-temperature refrigerating operation process, the indoor environment temperature and the outer plate temperature of the target air conditioner are monitored, the monitoring of the operation load of the target air conditioner can be realized, the operation frequency of the compressor is controlled according to the indoor environment temperature and the outer plate temperature, the operation frequency of the compressor can be adjusted in time according to the operation load of the target air conditioner, the refrigerating effect of the indoor environment and the stability of the operation of the target air conditioner are guaranteed, and the refrigerating comfort of the air conditioner is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a flow chart of a method for controlling refrigeration of an air conditioner according to the present invention;
FIG. 2 is a logic diagram of a high-temperature refrigeration control of an air conditioner according to the present invention;
fig. 3 is a schematic structural diagram of an air conditioner refrigeration control device provided by the invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
the present embodiment provides an air conditioner refrigeration control method, which may be applied to a controller of a target air conditioner, referring to a flowchart of the air conditioner refrigeration control method shown in fig. 1, and the method mainly includes the following steps S102 to S106:
step S102: and detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner.
The above-mentioned target air conditioner may be any air conditioner that needs cooling comfort control. When the target air conditioner enters a cooling mode, such as when a cooling mode entering signal input by a user is received, the target air conditioner is controlled to start cooling, timing is started based on a timer, timing time of the timer is acquired in real time or at preset time intervals, and cooling running time of the target air conditioner is obtained based on the timing time.
Step S104: and when the refrigerating operation time reaches a first preset time, monitoring the outdoor environment temperature, and judging whether the outdoor environment temperature is greater than or equal to the first preset temperature.
The first preset time can be determined according to the rated operation power of the target air conditioner, and the first preset time is a time period which can enable the target air conditioner to reach a stable refrigeration state after the target air conditioner starts refrigeration operation and ensure that the air conditioner is not damaged by high temperature, such as a value range of the first preset time can be 5-10 min, and a preferred value is 5 min. The first preset temperature may be a temperature value that has a large influence on the air conditioning cooling effect, such as any value between 40 and 48 degrees, and a preferred value is 43 degrees.
When the timing time of the timer reaches a first preset time, the refrigerating operation of the target air conditioner tends to be stable, the outdoor environment temperature is detected in real time based on a temperature sensor in the target air conditioner outdoor unit, the outdoor environment temperature currently detected by the temperature sensor is obtained, and the magnitude relation between the outdoor environment temperature and the first preset temperature is judged so as to judge whether the target air conditioner is in a high-temperature refrigerating state or not.
Step S106: if yes, monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner, determining the target frequency of a compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency.
When the outdoor environment temperature is higher than the first preset temperature, the target air conditioner is determined to be in a high-temperature refrigeration state, high-temperature refrigeration control over the target air conditioner is started, the indoor environment temperature of a room where the target air conditioner is located is monitored based on a temperature sensor in an indoor unit, the temperature of an outer plate of the target air conditioner is detected based on a temperature sensor arranged on a coil pipe of an outdoor unit of the target air conditioner, the indoor environment temperature and the outer plate temperature detected by the temperature sensor are obtained in real time, and the frequency of a compressor of the target air conditioner is controlled according to the change conditions of the indoor environment temperature and the outer plate temperature, so that the target air conditioner can meet the indoor refrigeration requirement, and the air conditioner cannot run down due to the fact that the refrigeration load of the air conditioner is large due to the fact that the outdoor temperature is high.
According to the air conditioner refrigeration control method provided by the embodiment, the refrigeration operation time of the air conditioner reaches the first preset time, and the outdoor environment temperature reaches the first preset temperature, namely when the air conditioner enters a stable high-temperature refrigeration operation process, the indoor environment temperature and the outer disc temperature of the target air conditioner are monitored, the operation load of the target air conditioner can be monitored, the operation frequency of the compressor of the target air conditioner is controlled according to the indoor environment temperature and the outer disc temperature, the operation frequency of the compressor can be timely adjusted according to the operation load of the target air conditioner, the refrigeration effect of the indoor environment and the operation stability of the target air conditioner are guaranteed, and the refrigeration comfort of the air conditioner is further improved.
In order to improve the stability of the target air conditioner operation, in this embodiment, an embodiment is provided for determining the target frequency of the compressor of the target air conditioner according to the indoor ambient temperature and the outer disk temperature, in this embodiment, first, a temperature interval in which the outer disk temperature is located is determined, and the compressor frequency is controlled according to the temperature interval in which the outer disk temperature is located, which may be specifically executed with reference to the following first to third embodiments:
the first implementation mode comprises the following steps: in this embodiment, the outer disk temperature is equal to or higher than the second preset temperature and lower than the third preset temperature, and the embodiment of determining the target frequency of the compressor of the target air conditioner may be specifically executed with reference to the following steps (1) to (3):
step (1): and when the temperature of the outer disc is greater than or equal to the second preset temperature and less than the third preset temperature, judging whether the indoor environment temperature is less than the fourth preset temperature, if so, acquiring the current temperature of the outer disc to obtain the temperature of the first outer disc, and acquiring the temperature of the outer disc before the second preset time to obtain the temperature of the second outer disc.
The second preset temperature may have a value ranging from 50 ℃ to 58 ℃, preferably 58 ℃, the third preset temperature may have a value ranging from 59 ℃ to 65 ℃, preferably 60 ℃, and the fourth preset temperature may have a value ranging from 20 ℃ to 32 ℃, preferably 27 ℃. The value range of the second preset time can be 10-60 s, and the preferred value is 20 s.
When the temperature of the outer plate of the target air conditioner is greater than or equal to the second preset temperature B and less than the third preset temperature C, the temperature of the outer plate is higher, if the current indoor environment temperature is lower than the fourth preset temperature D, which indicates that the current indoor environment temperature is lower, the target air conditioner plays a certain role in refrigeration, in order to further improve the refrigeration effect, the current outer disc temperature is obtained, the current outer disc temperature is taken as the first outer disc temperature, the outer disc temperature value before the second preset time is obtained from the historical detection result of the outer disc temperature, the outer disc temperature before the second preset time is taken as the second outer disc temperature, such as the outer disc temperature is more than or equal to the second preset temperature and less than the third preset temperature, and the moment when the indoor environment temperature is lower than the fourth preset temperature is taken as 0s moment, the outer disc temperature at 0s moment is taken as the first outer disc temperature, and the outer disc temperature before 20s is taken as the second outer disc temperature.
Step (2): and calculating a temperature difference value between the first outer disc temperature and the second outer disc temperature, and determining a target frequency of a compressor of the target air conditioner according to the temperature difference value.
The temperature difference value is equal to the first outer disc temperature and the second outer disc temperature, the compressor frequency can be controlled according to the historical change situation of the outer disc temperature by calculating the temperature difference value between the current outer disc temperature and the outer disc temperature before the second preset time, the frequency lag control of the compressor is avoided, the load change situation of the target air conditioner can be monitored, the compressor frequency of the target air conditioner is controlled according to the outer disc temperature difference value, and the stability of the air conditioner caused by the overlarge fluctuation of the air conditioner load on operation can be avoided.
In order to determine the target frequency of the compressor of the target air conditioner according to the temperature difference, in a specific embodiment, when the temperature difference between the first outer disc temperature and the second outer disc temperature is calculated, the current compressor frequency of the target air conditioner is obtained.
When the temperature difference is greater than or equal to the fifth preset temperature, reducing the current compressor frequency by the first preset frequency to obtain the target frequency, namely, the target frequency is equal to the current compressor frequency-the first preset frequency. When the temperature difference value of the outer disc temperature in the second preset time is larger than or equal to the fifth preset temperature E, the rising speed of the outer disc temperature is high, the operation frequency of the air conditioner is at a high level, in order to guarantee the operation reliability of the air conditioning unit, the situation that the air conditioner devices are burnt down due to the overhigh outer disc temperature is avoided, and the compressor of the target air conditioner is controlled to reduce the first preset frequency so as to improve the operation reliability of the air conditioning unit. Meanwhile, in order to avoid the influence on the refrigeration effect of the target air conditioner caused by the large reduction of the compressor of the target air conditioner, the value range of the first preset frequency can be 1-5 Hz, and the preferred value is 2 Hz. The value range of the fifth preset temperature can be 0-5 ℃, and the preferred value is 2 ℃.
And when the temperature difference value is smaller than a fifth preset temperature, increasing the current compressor frequency by a second preset frequency to obtain a target frequency, namely the target frequency is equal to the current compressor frequency plus the second preset frequency. When the temperature difference value of the outer disc temperature in the second preset time is smaller than the fifth preset temperature E, the rising speed of the outer disc temperature is relatively slow, the target air conditioner still has refrigerating allowance, and in order to improve the refrigerating effect of the target air conditioner, the frequency of a compressor of the target air conditioner is controlled to be increased by the second preset frequency, so that the target air conditioner achieves the optimal refrigerating effect, and the refrigerating comfort of the air conditioner is improved. Meanwhile, in order to avoid that the temperature of the outer disc is too high due to the large increase of the frequency of the compressor of the target air conditioner, the value range of the second preset frequency can be 1-5 Hz, and the preferred value is 2 Hz.
And (3) when the indoor environment temperature is greater than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by the third preset frequency to obtain the target frequency.
The value range of the fourth preset temperature D may be 20 to 32 degrees, and the preferred value is 27 degrees. When the temperature of the outer plate is greater than or equal to the second preset temperature and less than the third preset temperature, if the indoor environment temperature is detected to be greater than or equal to the fourth preset temperature D, the situation that the unit is under a high refrigeration load is shown, the indoor environment temperature is still not effectively reduced, and the situation that the refrigeration capacity of the air conditioning unit is insufficient may exist. In order to avoid the influence on the refrigeration effect of the target air conditioner caused by the excessive reduction of the frequency of the compressor, the value range of the third preset frequency can be 1-5 Hz, and the preferred value is 2 Hz.
The second embodiment: in this embodiment, the outer disk temperature is lower than the second preset temperature, and the embodiment of determining the target frequency of the compressor of the target air conditioner may be specifically executed with reference to the following steps 1 to 2:
step 1: and when the temperature of the outer disc is less than the second preset temperature and the indoor environment temperature is greater than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and taking the current compressor frequency as the target frequency.
If the temperature of the outer disc of the target air conditioner is lower than the second preset temperature, whether the indoor environment temperature is higher than or equal to the fourth preset temperature or not is judged, when the indoor environment temperature is higher than or equal to the fourth preset temperature, the fact that the indoor environment temperature is not effectively reduced when the unit operates in a normal refrigeration mode is shown, the refrigeration capacity of the air conditioning unit is possibly lower, and the refrigeration requirement of a large room cannot be met.
And 2, step: and when the temperature of the outer disc is lower than the second preset temperature and the indoor environment temperature is lower than the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and increasing the current compressor frequency by the fourth preset frequency to obtain the target frequency.
When the temperature of the outer plate is lower than the second preset temperature and the indoor environment temperature is lower than the fourth preset temperature, the indoor environment temperature is lower, the cooling operation of the air conditioning unit generates a cooling effect on the indoor environment temperature, the coil temperature of the target air conditioning outdoor unit is lower, the cooling load of the air conditioning unit is smaller, namely the air conditioning unit does not reach the optimal cooling state, the air conditioning unit also has a cooling allowance, the fourth preset frequency is increased by controlling the frequency of the compressor of the target air conditioner, the cooling effect is improved as much as possible on the basis of ensuring the stability of the air conditioning operation, the cooling effect is optimal, and the cooling experience of a user is improved. The value range of the fourth preset frequency can be 1-5 Hz, and the preferred value is 2 Hz.
The third embodiment is as follows: and when the temperature of the outer disc is greater than or equal to the third preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by a fifth preset frequency to obtain the target frequency.
When the temperature of the outer disc is greater than or equal to the third preset temperature, it is indicated that the temperature of the outer disc of the target air conditioner is high, the target air conditioner is in a high-load refrigeration operation state, and in order to ensure the reliability of the target air conditioner and prevent internal devices of the target air conditioner from being burnt, a frequency value obtained by reducing the frequency of the current compressor by a fifth preset frequency is used as the target frequency, namely the frequency of the compressor of the target air conditioner is controlled to reduce the fifth preset frequency, so that the reliability of the target air conditioner is improved. In order to control the compressor of the target air conditioner to rapidly reduce the frequency, the value range of the fifth preset frequency may be 5 to 10Hz, and the preferred value is 5 Hz.
In a specific implementation manner, the air-conditioning refrigeration control method provided in this embodiment further includes: and when the compressor of the target air conditioner runs for a third preset time at the target frequency, returning to execute the step of judging whether the outdoor environment temperature is greater than or equal to the first preset temperature.
After the compressor of the target air conditioner is controlled to run at the new target frequency according to the indoor environment temperature and the outer disk temperature, the running time of the target air conditioner at the target frequency is monitored based on the timer, in order to avoid unstable running of the unit caused by repeated frequency increase or frequency reduction of the compressor of the target air conditioner, when the running time of the compressor of the target air conditioner at the target frequency reaches a third preset time, namely after the compressor of the target air conditioner is subjected to frequency increase, frequency reduction or frequency maintaining running for a period of time, the high-temperature refrigeration judging step of the target air conditioner is carried out, namely the step S104 is returned to be executed to judge whether the outdoor environment temperature is greater than or equal to the first preset temperature, and therefore the high-temperature refrigeration cycle control of the target air conditioner is achieved. The value range of the third preset time can be 1-10 min, and the preferred value is 2min or 1 min.
The air conditioner refrigeration control method provided by the embodiment monitors the outdoor environment temperature, the outer disc temperature and the indoor environment temperature in the refrigeration process of the target air conditioner, can automatically and periodically enter high-temperature refrigeration control on the target air conditioner when the outdoor environment temperature is high, the intelligence of refrigeration operation of the target air conditioner is improved, the compressor frequency is periodically adjusted according to the outer disc temperature and the indoor environment temperature in the high-temperature refrigeration process of the target air conditioner, the accurate control on the compressor frequency can be realized, and the comfort level of a user brought by refrigeration of the target air conditioner is improved.
Example two:
corresponding to the air conditioner refrigeration control method provided by the first embodiment, an embodiment of the present invention provides an example of performing high-temperature refrigeration control on an air conditioner by using the air conditioner refrigeration control method, referring to a logic diagram of air conditioner high-temperature refrigeration control shown in fig. 2, and specifically referring to the following steps 1) to 6):
step 1): when the air conditioner enters a refrigeration mode and stably operates for 5 minutes, detecting the outdoor environment temperature TOuter ring。
Step 2): judgment of TOuter ringWhether or not T is satisfiedOuter ringAnd the temperature is more than or equal to A ℃, if so, the air conditioner is controlled to enter a high-temperature refrigeration control step.
If T isOuter ringNot satisfying TOuter ringAnd controlling the air conditioner to enter a normal refrigeration mode to operate at the temperature of more than or equal to A ℃.
Step 3): detecting outer disc temperature T of air conditionerOuter plateJudgment of TOuter plateWhether or not T is satisfiedOuter plateMore than or equal to B ℃, if so, further judging the temperature T of the outer discOuter plateWhether or not T is satisfiedOuter plate≥C℃。
Step 4): when the temperature of the outer disk TOuter plateSatisfy TOuter plateAnd when the temperature is more than or equal to C ℃, controlling the compressor of the air conditioner to quickly reduce the frequency of MHz, and returning to execute the step of detecting the outdoor environment temperature after the air conditioner operates for 1 minute.
Step 5): when the temperature of the outer disk TOuter plateMeet the requirement of C DEG C>TOuter plateDetecting the indoor ambient temperature T at the temperature of not less than B DEG CInner ringJudging whether the indoor environment temperature satisfies TInner ring<D℃。
When T isInner ring<Detecting the temperature difference T between the current outer disk temperature and the outer disk temperature before 20s at the temperature of D DEG C0 s-first 20sJudging the temperature difference T0 s-first 20sWhether or not T is satisfied0 s-first 20sAt not less than E ℃, if T0 s-first 20sControlling the compressor to reduce the frequency of Q Hz at the temperature of more than or equal to E ℃; if T is0 s-first 20s<E ℃, controlling the compressor to boost the frequency J Hz. And after the compressor is stably operated for 2 minutes in an up-conversion or down-conversion mode, returning to the step of detecting the outdoor environment temperature.
When T isInner ringAnd when the temperature is more than or equal to D ℃, controlling the compressor to reduce the frequency of the N Hz, and returning to execute the step of detecting the outdoor environment temperature after the compressor stably operates for 2 minutes.
Step 6): when the temperature of the outer disk TOuter plateSatisfy TOuter plate<At B deg.C, detecting indoor ambient temperature TInner ringJudging whether the indoor environment temperature satisfies TInner ring<D℃。
When T isInner ring<And D ℃, controlling the compressor to increase the frequency to G Hz, and returning to execute the step of detecting the outdoor environment temperature after the compressor stably operates for 2 minutes after increasing the frequency.
When T isInner ringAnd when the temperature is more than or equal to D ℃, controlling the compressor to maintain the stable operation of the current frequency for 2 minutes, and returning to execute the step of detecting the outdoor environment temperature.
Wherein, the value range of the A can be 40-48 ℃, and the preferred value is 43 ℃; the value range of the B can be 50-58 ℃, and the preferred value is 58 ℃; the value range of the C can be 59-65 ℃, and the preferred value is 60 ℃; the value range of the D can be 20-32 ℃, and the preferred value is 27 ℃; the value range of the E can be 0-5 ℃, and the preferred value is 2 ℃; the value range of M can be 5 Hz-10 Hz, and the preferred value is 43 Hz; the value range of the G can be 1 Hz-5 Hz, and the preferred value is 2 Hz; the value range of the N can be 1 Hz-5 Hz, and the preferred value is 2 Hz; the value range of Q can be 1 Hz-5 Hz, and the preferred value is 2 Hz; the value range of J can be 1 Hz-5 Hz, and the preferred value is 2 Hz.
Example three:
corresponding to the air-conditioning refrigeration control method provided by the first embodiment, an embodiment of the present invention provides an air-conditioning refrigeration control device, which can be applied to a controller of a target air conditioner, and referring to a schematic structural diagram of the air-conditioning refrigeration control device shown in fig. 3, the device includes the following modules:
the first detection module 31 is configured to detect a cooling operation time of the target air conditioner during a cooling process of the target air conditioner.
The second detection module 32 is configured to monitor the outdoor environment temperature when the cooling operation time reaches the first preset time, and determine whether the outdoor environment temperature is greater than or equal to the first preset temperature.
And the control module 33 is configured to monitor the indoor ambient temperature and the outer disc temperature of the target air conditioner when the outdoor ambient temperature is greater than or equal to a first preset temperature, determine a target frequency of a compressor of the target air conditioner according to the indoor ambient temperature and the outer disc temperature, and control the compressor of the target air conditioner to operate at the target frequency.
The above-mentioned air conditioner refrigeration controlling means that this embodiment provided, reach first default time through the refrigeration operating duration at the air conditioner, and when outdoor ambient temperature reached first default temperature, when the air conditioner got into stable high temperature refrigeration operation process promptly, monitor indoor ambient temperature and target air conditioner's outer temperature of twining, can realize the monitoring to target air conditioner running load, through the compressor running frequency according to indoor ambient temperature and outer temperature control target air conditioner, can in time adjust the running frequency of compressor according to the running load of target air conditioner, with the stability of guaranteeing indoor environment's refrigeration effect and target air conditioner operation, and then promote the refrigeration travelling comfort of air conditioner.
In an embodiment, the control module 33 is further configured to determine whether the indoor environment temperature is less than a fourth preset temperature when the outer panel temperature is greater than or equal to a second preset temperature and less than a third preset temperature, and if so, obtain the current outer panel temperature to obtain a first outer panel temperature, obtain the outer panel temperature before a second preset time to obtain a second outer panel temperature; and calculating a temperature difference value between the first outer disc temperature and the second outer disc temperature, and determining a target frequency of a compressor of the target air conditioner according to the temperature difference value.
In an embodiment, the control module 33 is further configured to obtain a current compressor frequency of the target air conditioner; when the temperature difference is greater than or equal to a fifth preset temperature, reducing the current compressor frequency by a first preset frequency to obtain a target frequency; and when the temperature difference value is smaller than the fifth preset temperature, increasing the current compressor frequency by a second preset frequency to obtain the target frequency.
In an embodiment, the control module 33 is further configured to, when the indoor ambient temperature is greater than or equal to a fourth preset temperature, obtain a current compressor frequency of the target air conditioner, and reduce the current compressor frequency by a third preset frequency to obtain the target frequency.
In an embodiment, the control module 33 is further configured to obtain a current compressor frequency of the target air conditioner when the temperature of the outer disc is less than a second preset temperature and the indoor environment temperature is greater than or equal to a fourth preset temperature, and use the current compressor frequency as the target frequency; and when the temperature of the outer disc is lower than the second preset temperature and the indoor environment temperature is lower than the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and increasing the current compressor frequency by the fourth preset frequency to obtain the target frequency.
In an embodiment, the control module 33 is further configured to, when the temperature of the outer disc is greater than or equal to a third preset temperature, obtain a current compressor frequency of the target air conditioner, and reduce the current compressor frequency by a fifth preset frequency to obtain the target frequency.
In an embodiment, the control module 33 is further configured to return to the step of determining whether the outdoor environment temperature is greater than or equal to the first preset temperature after the compressor of the target air conditioner operates at the target frequency for a third preset time.
The above-mentioned air conditioner refrigeration controlling means that this embodiment provided, through the refrigeration process at the target air conditioner, monitor outdoor ambient temperature, outer temperature and indoor ambient temperature, can be when outdoor ambient temperature is higher automatic periodic entering high temperature refrigeration control to the target air conditioner, the intelligence of target air conditioner refrigeration operation has been promoted, through in the high temperature refrigeration process to the target air conditioner, according to outer temperature and the periodic adjustment compressor frequency of indoor ambient temperature, can realize the accurate control to the compressor frequency, the user's comfort level that target air conditioner refrigeration brought has been promoted.
Example four:
corresponding to the air-conditioning refrigeration control method provided by the first embodiment, the present embodiment provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, and when the computer program is read and executed by the processor, the air-conditioning refrigeration control method provided by the first embodiment is implemented.
Example five:
the present embodiment further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the air-conditioning refrigeration control method embodiment, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Of course, those skilled in the art will understand that all or part of the processes in the methods of the above embodiments may be implemented by instructing the control device to perform operations through a computer, and the programs may be stored in a computer-readable storage medium, and when executed, the programs may include the processes of the above method embodiments, where the storage medium may be a memory, a magnetic disk, an optical disk, and the like.
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.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The air conditioner refrigeration control device and the air conditioner disclosed by the embodiment correspond to the air conditioner refrigeration control method disclosed by the embodiment, so that the description is relatively simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. An air conditioner refrigeration control method is characterized by comprising the following steps:
detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner;
when the refrigerating operation time reaches a first preset time, monitoring the outdoor environment temperature, and judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not;
if so, monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner, determining the target frequency of a compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency;
the step of determining a target frequency of a compressor of the target air conditioner according to the indoor ambient temperature and the outer disc temperature includes:
and when the temperature of the outer disc is greater than or equal to a second preset temperature and less than a third preset temperature, judging whether the indoor environment temperature is less than a fourth preset temperature, and if so, determining the target frequency of the compressor of the target air conditioner according to the historical change value of the temperature of the outer disc.
2. The air conditioner refrigeration control method as claimed in claim 1, wherein the step of determining the target frequency of the compressor of the target air conditioner according to the historical variation value of the outer panel temperature comprises:
acquiring the current outer disc temperature to obtain a first outer disc temperature, and acquiring the outer disc temperature before a second preset time to obtain a second outer disc temperature;
and calculating a temperature difference value between the first outer disc temperature and the second outer disc temperature, and determining a target frequency of a compressor of the target air conditioner according to the temperature difference value.
3. The air conditioner refrigeration control method as claimed in claim 2, wherein the step of determining the target frequency of the compressor of the target air conditioner according to the temperature difference value comprises:
acquiring the current compressor frequency of the target air conditioner;
when the temperature difference is greater than or equal to a fifth preset temperature, reducing the current compressor frequency by a first preset frequency to obtain the target frequency;
and when the temperature difference value is smaller than the fifth preset temperature, increasing the current compressor frequency by a second preset frequency to obtain the target frequency.
4. The air conditioning refrigeration control method as claimed in claim 2, further comprising:
and when the indoor environment temperature is greater than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by a third preset frequency to obtain the target frequency.
5. The air conditioning refrigeration control method as claimed in claim 2, further comprising:
when the temperature of the outer disc is lower than the second preset temperature and the indoor environment temperature is higher than or equal to the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and taking the current compressor frequency as the target frequency;
and when the temperature of the outer disc is lower than the second preset temperature and the indoor environment temperature is lower than the fourth preset temperature, acquiring the current compressor frequency of the target air conditioner, and increasing the current compressor frequency by the fourth preset frequency to obtain the target frequency.
6. The air conditioning refrigeration control method as claimed in claim 2, further comprising:
and when the temperature of the outer disc is greater than or equal to the third preset temperature, acquiring the current compressor frequency of the target air conditioner, and reducing the current compressor frequency by a fifth preset frequency to obtain the target frequency.
7. The air conditioner refrigeration control method as claimed in any one of claims 1-6, further comprising:
and when the compressor of the target air conditioner runs for a third preset time at the target frequency, returning to execute the step of judging whether the outdoor environment temperature is greater than or equal to the first preset temperature.
8. An air conditioner refrigeration control device, characterized by comprising:
the first detection module is used for detecting the refrigerating operation time of the target air conditioner in the refrigerating process of the target air conditioner;
the second detection module is used for monitoring the outdoor environment temperature when the refrigerating operation time reaches a first preset time, and judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not;
the control module is used for monitoring the indoor environment temperature and the outer disc temperature of the target air conditioner when the outdoor environment temperature is greater than or equal to a first preset temperature, determining the target frequency of the compressor of the target air conditioner according to the indoor environment temperature and the outer disc temperature, and controlling the compressor of the target air conditioner to operate at the target frequency;
and the control module is further used for judging whether the indoor environment temperature is lower than a fourth preset temperature or not when the outer disc temperature is greater than or equal to a second preset temperature and lower than a third preset temperature, and if so, determining the target frequency of the compressor of the target air conditioner according to the historical change value of the outer disc temperature.
9. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the method according to any one of claims 1-7.
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