CN108870652B - 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
CN108870652B
CN108870652B CN201810786554.7A CN201810786554A CN108870652B CN 108870652 B CN108870652 B CN 108870652B CN 201810786554 A CN201810786554 A CN 201810786554A CN 108870652 B CN108870652 B CN 108870652B
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Prior art keywords
temperature
air conditioner
frequency
refrigeration
ring
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CN108870652A (en
Inventor
方宁
陈冬
吴小毛
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Aux Air Conditioning Co Ltd
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Aux Air Conditioning Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F2013/221Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/10Weather information or forecasts

Abstract

The invention provides an air conditioner refrigeration control method and device and an air conditioner. The air conditioner refrigeration control method comprises the following steps: acquiring relative humidity information of a region from a meteorological server; when the acquired relative humidity information is smaller than a first humidity threshold value, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature and outer ring temperature; when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold, judging whether to enter an ultra-strong refrigeration mode or not according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor running time and compressor running frequency; and if the air conditioner enters the super-strong refrigeration mode from the conventional refrigeration mode, increasing the running frequency of the compressor to the super-strong refrigeration frequency or the highest refrigeration frequency of the compressor. The accuracy of judging the environment humidity is improved, and the refrigeration effect of the air conditioner is improved while the generation of condensation is avoided.

Description

Air conditioner refrigeration control method and device and air conditioner
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air conditioner refrigeration control method and device and an air conditioner.
Background
The dew point temperature of indoor air is higher in summer, and when the air supply temperature of the air conditioner is lower than the dew point temperature of the air in a room, condensation water can be condensed and dripped from an air outlet and an air duct of the air conditioner, particularly in a period of time when the air conditioner is just started. In fact, the presence of condensation is also a normal phenomenon. However, the occurrence of condensation can pollute the floor and furniture of users, which is not good for environmental sanitation and has poor user experience.
In order to improve the condensation phenomenon of the down-conversion air conditioner in the high-temperature and high-humidity environment, the down-conversion air conditioner in the related technology adopts a lower compressor operation frequency to refrigerate. However, the low operation frequency of the compressor makes the cooling effect of the air conditioner poor. Meanwhile, the air conditioner can not distinguish the ambient humidity, so that the compressor can still run at a lower frequency even under the high-temperature low-humidity working condition, and the air conditioner can serve users with a poorer refrigeration effect under an unnecessary condition. If a humidity sensor is added to the variable frequency air conditioner, although the humidity of the refrigeration running environment can be distinguished, the cost of the whole machine is increased.
Disclosure of Invention
In view of the above, the present invention is directed to a method for controlling refrigeration of an air conditioner, so as to improve the refrigeration effect while avoiding the generation of condensation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner refrigeration control method is applied to an air conditioner, the air conditioner is in communication connection with a meteorological server, and the air conditioner refrigeration control method comprises the following steps: acquiring relative humidity information of the region from the meteorological server; when the acquired relative humidity information is smaller than a first humidity threshold value, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature and outer ring temperature; when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor running time and compressor running frequency; wherein the second humidity threshold is greater than the first humidity threshold; and if the air conditioner enters the ultra-strong refrigeration mode from the conventional refrigeration mode, increasing the running frequency of the compressor to the ultra-strong refrigeration frequency generated based on the conventional running frequency corresponding to the conventional refrigeration mode or the highest refrigeration frequency of the compressor.
Further, the mode of judging whether to enter the super-strong refrigeration mode according to the collected inner disc temperature, the collected inner ring temperature and the collected outer ring temperature includes: and when the difference value between the temperature of the inner ring and the temperature of the inner disc exceeds a preset first temperature threshold value and the temperature of the outer ring is between a second temperature threshold value and a third temperature threshold value, judging to enter the super-strong refrigeration mode.
Further, the mode of judging whether to enter the super-strong refrigeration mode according to the collected inner disc temperature, the collected inner ring temperature, the collected outer ring temperature, the collected compressor running time and the collected compressor running frequency comprises the following steps: and when the difference between the temperature of the inner ring and the temperature of the inner disc exceeds the first temperature threshold, the difference between the temperature of the inner ring and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor is not lower than a preset time threshold, the running frequency of the compressor reaches the conventional running frequency, and the temperature of the outer ring is between the second temperature threshold and the third temperature threshold, the super-strong refrigeration mode is judged to be entered.
Further, the manner of generating the super strong cooling frequency based on the normal operation frequency corresponding to the normal cooling mode includes: according to the conventional operating frequency and a preset coefficient, using a formula:
F=F1×c,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1Representing the normal operating frequency, c representing the preset coefficient, wherein the preset coefficient is more than 1 and less than 2; or
According to the conventional operating frequency and a preset constant, utilizing a formula:
F=F1+D,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1Representing the normal operation frequency, and D representing the preset constant, wherein the value of the preset constant is less than 30 and greater than 0.
Further, after entering the super strong cooling mode, the air conditioner cooling control method further includes: acquiring the inner ring temperature, the inner disc temperature, the relative humidity information and the outer ring temperature according to a preset time period; when the difference value between the inner ring temperature and the inner disc temperature is smaller than a fifth temperature threshold value, the normal refrigeration mode is recovered; when the relative humidity information is greater than the second humidity threshold value, the normal refrigeration mode is resumed; when the outer ring temperature is smaller than a preset second temperature threshold value or larger than a preset third temperature threshold value, the conventional refrigeration mode is recovered; when the difference value between the inner ring temperature and the set temperature value is smaller than a preset fourth temperature threshold value, the conventional refrigeration mode is recovered; and when a frequency reduction protection instruction generated by the air conditioner is detected, the conventional refrigeration mode is recovered.
Further, the value of the first humidity threshold value is not more than 60%, and the value of the second humidity threshold value is not more than 80%.
Compared with the prior art, the air conditioner refrigeration control method has the following advantages:
the air conditioner refrigeration control method obtains relative humidity information of a region from a meteorological server, judges whether to enter a super-strong refrigeration mode according to the collected inner disc temperature, inner ring temperature and outer ring temperature if the relative humidity information is smaller than a first humidity threshold value, and judges whether to enter the super-strong refrigeration mode according to the collected inner disc temperature, inner ring temperature, outer ring temperature, compressor running time and compressor running frequency if the obtained relative humidity information is smaller than a second humidity threshold value and larger than the first humidity threshold value. Through under the relative humidity condition of difference, adopt the judgement condition of different requirements, improve the accurate judgement to the humidity environment, avoid the mistake to get into super strong refrigeration mode under the operating mode of high temperature and high humidity, and produce the condensation. And after entering the super-strong refrigeration mode, increasing the running frequency of the compressor to the super-strong refrigeration frequency or the highest refrigeration frequency. Therefore, the refrigerating effect of the air conditioner is improved while the generation of condensation is avoided.
Another objective of the present invention is to provide a refrigeration control device for an air conditioner, so as to improve the refrigeration effect while avoiding the generation of condensation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides an air conditioner refrigeration controlling means, is applied to the air conditioner, the air conditioner and meteorological server communication connection, air conditioner refrigeration controlling means includes: the acquisition module is used for acquiring the relative humidity information of the region from the meteorological server; the judgment module is used for judging whether to enter an ultra-strong refrigeration mode or not according to the acquired inner disc temperature, inner ring temperature and outer ring temperature when the acquired relative humidity information is smaller than a first humidity threshold value; the judgment module is further configured to judge whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor running time and compressor running frequency when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold; wherein the second humidity threshold is greater than the first humidity threshold; and the adjusting module is used for increasing the running frequency of the compressor to the super-strong refrigerating frequency generated based on the conventional running frequency corresponding to the conventional refrigerating mode or the highest refrigerating frequency of the compressor if the air conditioner enters the super-strong refrigerating mode from the conventional refrigerating mode.
Further, the determining module is specifically configured to: and when the difference value between the temperature of the inner ring and the temperature of the inner disc exceeds a preset first temperature threshold value and the temperature of the outer ring is between a second temperature threshold value and a third temperature threshold value, judging to enter the super-strong refrigeration mode.
Further, the determining module is specifically configured to: and when the difference between the temperature of the inner ring and the temperature of the inner disc exceeds the first temperature threshold, the difference between the temperature of the inner ring and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor is not lower than a preset time threshold, the running frequency of the compressor reaches the conventional running frequency, and the temperature of the outer ring is between the second temperature threshold and the third temperature threshold, the super-strong refrigeration mode is judged to be entered.
Compared with the prior art, the air-conditioning refrigeration control device and the air-conditioning refrigeration control method have the same advantages, and are not repeated herein.
Another objective of the present invention is to provide an air conditioner to improve the cooling effect while preventing the generation of condensation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner, the air conditioner further comprising: one or more controllers; a memory for storing one or more programs that, when executed by the one or more controllers, cause the one or more controllers to implement the aforementioned air conditioning refrigeration control method.
Compared with the prior art, the air conditioner and the air conditioner refrigeration control method have the same advantages, and are not repeated herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of a circuit structure of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating steps of a refrigeration control method for an air conditioner according to an embodiment of the present invention;
FIG. 3 is another part of a flow chart of steps of a refrigeration control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic diagram of functional modules of an air conditioning refrigeration control device according to an embodiment of the present invention.
Description of reference numerals:
the system comprises an air conditioner 1, a storage 2, a controller 3, an acquisition unit 4, a compressor 5, an air conditioner refrigeration control device 6, an acquisition module 7, a judgment module 8 and an adjustment module 9.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In addition, the weather server mentioned in the embodiment of the present invention refers to a server for distributing regional temperature and humidity information on a network. The relative humidity information mentioned in the embodiment of the present invention refers to the humidity information of the region issued by the weather server, and it is understood that the relative humidity information may not be the humidity information accurately representing the installation environment of the air conditioner. The normal cooling mode mentioned in the embodiment of the present invention refers to a mode in which the air conditioner normally performs cooling. The super-strong cooling mode mentioned in the embodiment of the present invention is an operation mode different from the conventional cooling mode, and specifically, under the same user instruction, the frequency of the compressor corresponding to the super-strong cooling mode is higher than the frequency of the compressor corresponding to the conventional cooling mode. For example, the received user command is to adjust the temperature to 27 ℃, and the air conditioner compressor needs to operate at a first frequency in the normal cooling mode, and at this time, if the super cooling mode is entered, the air conditioner compressor needs to operate at a second frequency higher than the first frequency. In the embodiment of the present invention, the predetermined coefficient refers to a predetermined constant. The preset constant mentioned in the embodiment of the present invention also refers to a preset constant.
Further, the present invention provides an air conditioner 1 for improving the use effect of the air conditioner 1 while preventing the generation of condensation. It should be noted that, in the embodiment of the present invention, the air conditioner 1 may be an inverter air conditioner. Fig. 1 is a block diagram of a circuit structure of an air conditioner 1 according to an embodiment of the present invention.
In an embodiment of the present invention, the air conditioner 1 described above includes: memory 2, controller 3, collection unit 4, compressor 5 and air conditioning refrigeration controlling means 6. The controller 3 is electrically connected with the memory 2, the acquisition unit 4 and the compressor 5. The air conditioning refrigeration control device 6 comprises at least one memory 2 which can be stored in the form of software or firmware (firmware).
The controller 3 is also communicatively connected to a weather server for obtaining data from the weather server.
The memory 2 may be configured to store software programs and units, such as program instruction units corresponding to the air-conditioning refrigeration control device 6 and the method in the embodiment of the present invention, and the controller 3 executes various functional applications and data processing by running the software programs and units of the air-conditioning refrigeration control device 6 and the method stored in the memory 2, such as the air-conditioning refrigeration control method provided in the embodiment of the present invention. Further, the memory 2 may further store therein an intelligent APP program file matched with the weather server, and the controller 3 establishes a communication connection with the weather server by executing the APP program file, so that the weather server provides services to the air conditioner 1.
The Memory 2 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.
The above-mentioned acquisition unit 4 may comprise a plurality of temperature sensors. Among the plurality of temperature sensors, a temperature sensor provided in the casing of the outdoor unit of the air conditioner 1 is used to collect the outer ring temperature corresponding to the air conditioner 1; the temperature sensor is arranged on the outer side of a coil pipe of a condenser of an outdoor unit of the air conditioner 1 and is used for acquiring the temperature of an outer coil corresponding to the air conditioner 1; the temperature sensor is arranged on the outer side of a coil pipe of an evaporator of an indoor unit of the air conditioner 1 and is used for collecting the temperature of an inner plate corresponding to the air conditioner 1; and a temperature sensor arranged on the shell of the indoor unit of the air conditioner 1 and used for collecting the inner ring temperature corresponding to the air conditioner 1.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
First embodiment
Referring to fig. 2, an air conditioner refrigeration control method according to an embodiment of the present invention is applied to the air conditioner 1. As shown in fig. 2, the air-conditioning refrigeration control method may include the following steps:
and step S101, acquiring relative humidity information of the region.
In the embodiment of the present invention, the weather server may be directly connected through the intelligent WiFi, and the positioning information is sent to the weather server, so that the weather server obtains the relative humidity information of the area to which the installation location of the air conditioner 1 belongs according to the positioning information, and feeds the relative humidity information back to the controller 3 of the air conditioner 1. Or logging in the meteorological server by using the intelligent APP to acquire the relative humidity information of the region where the installation position of the air conditioner 1 belongs. For example, an air conditioner 1 installed in the great happy area of beijing may obtain humidity information of the great happy area as relative humidity information from a weather server through a built-in smart APP.
In other embodiments, the air conditioner 1 may acquire corresponding humidity information as the relative humidity from other indoor appliances having the humidity acquisition unit 4 by using the internet of things technology.
It can be understood that the relative humidity information is obtained by the method, and a humidity sensor is not required to be additionally arranged, so that the cost of the air conditioner can be effectively saved.
And S102, when the acquired relative humidity information is smaller than a first humidity threshold value, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, the acquired inner ring temperature and the acquired outer ring temperature.
In the embodiment of the present invention, if the acquired relative humidity information is smaller than the first humidity threshold, the manner of determining whether to enter the super-strong cooling mode according to the acquired inner disc temperature, inner ring temperature, and outer ring temperature may be: and when the difference value between the temperature of the inner ring and the temperature of the inner disc exceeds a preset first temperature threshold value and the temperature of the outer ring is between a second temperature threshold value and a third temperature threshold value, judging to enter the super-strong refrigeration mode. Preferably, the first humidity threshold may be no more than 60%. It should be noted that the relative humidity information is relative humidity information, and cannot accurately represent the humidity condition of the installation environment of the air conditioner 1, and therefore, in this embodiment, when determining whether the super-strong refrigeration mode can be entered, the determination accuracy is improved according to the relative humidity information and by combining the inner disc temperature, the inner ring temperature, and the outer ring temperature, and is not affected by the inaccuracy of the relative humidity information, so as to avoid the occurrence of condensation during the operation process due to the erroneous determination of entering the super-strong refrigeration mode.
And S103, when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor 5 running time and compressor 5 running frequency.
In an embodiment of the invention, the second humidity threshold is greater than the first humidity threshold. If the acquired relative humidity information is smaller than a second humidity threshold and larger than the first humidity threshold, whether the super-strong refrigeration mode is entered or not can be judged according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor 5 running time and compressor 5 running frequency: and when the difference between the temperature of the inner ring and the temperature of the inner disc exceeds a first temperature threshold, the difference between the temperature of the inner ring and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor 5 is not lower than a preset time threshold, the running frequency of the compressor 5 reaches the conventional running frequency, and the temperature of the outer ring is between a second temperature threshold and a third temperature threshold, judging to enter the super-strong refrigeration mode. Preferably, the second humidity threshold may be no more than 80%.
Step S104, if the air conditioner 1 enters the super strong cooling mode from the normal cooling mode, increasing the operating frequency of the compressor 5 to the super strong cooling frequency generated based on the normal operating frequency corresponding to the normal cooling mode or the highest cooling frequency of the compressor 5.
In the embodiment of the present invention, the air conditioner 1 corresponds to a real-time normal operation frequency during the operation of the normal cooling mode.
As an embodiment, when switching from the normal cooling mode to the super strong cooling mode, the corresponding super strong cooling frequency is generated based on the normal operation frequency of the normal cooling mode. Optionally, the manner of generating the corresponding super-strong cooling frequency may include any one of the following:
(1) according to the conventional operating frequency and a preset coefficient, using a formula:
F=F1×c,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1Representing a normal operating frequency, c representing the preset coefficient, wherein the preset coefficient is more than 1 and less than 2; or
(2) According to the conventional operating frequency and a preset constant, utilizing a formula:
F=F1+D,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1And D represents the normal operation frequency, and represents the preset constant, wherein the value of the preset constant is less than 30 and greater than 0.
As an embodiment, when switching from the normal cooling mode to the super cooling mode, the compressor 5 is directly operated at the highest cooling frequency.
Further, as shown in fig. 3, the air-conditioning refrigeration control method provided in the embodiment of the present invention may further include the following steps:
step S201, acquiring the inner ring temperature, the inner disc temperature, the relative humidity information and the outer ring temperature according to a preset time period.
In the embodiment of the present invention, the air conditioner 1 continues to acquire the relative humidity information of the area where the installation location thereof belongs from the weather server every time period. The temperature of the inner ring is collected by a temperature sensor arranged on the shell of the indoor unit in each time period and is fed back to the controller 3 by the temperature sensor; the temperature of the inner coil is collected by a temperature collector of an evaporator coil arranged on the indoor unit in each time period and is fed back to the controller 3 by the temperature sensor, and the temperature of the outer ring is collected by a temperature sensor arranged on the outer shell of the outdoor unit in each time period and is fed back to the controller 3 by the temperature sensor.
And S202, when the difference value between the inner ring temperature and the inner disc temperature is smaller than a fifth temperature threshold value, the normal refrigeration mode is recovered.
And step S203, when the relative humidity information is greater than the second humidity threshold value, the normal refrigeration mode is recovered.
And step S204, when the outer ring temperature is smaller than a preset second temperature threshold value or larger than a preset third temperature threshold value, the normal refrigeration mode is recovered.
In an embodiment of the invention, the second temperature threshold is smaller than the third temperature threshold.
And S205, when the difference value between the inner ring temperature and the set temperature value is smaller than a preset fourth temperature threshold value, restoring the normal refrigeration mode.
Step S206, when the frequency down protection command generated by the air conditioner 1 is detected, the normal cooling mode is resumed.
In the embodiment of the invention, when the air conditioner 1 operates in the ultra-strong refrigeration mode, the system triggers frequency reduction in any way to generate a frequency reduction protection instruction. The air conditioner 1 restores the normal cooling mode according to the down protection instruction.
In the embodiment of the present invention, the sequence from step S202 to step S206 is not necessarily sequential, and all are parallel. That is, it can be understood that when any one of the requirements that the difference between the inner ring temperature and the inner disc temperature is smaller than a fifth temperature threshold, the relative humidity information is greater than the second humidity threshold, the outer ring temperature is smaller than a preset second temperature threshold or greater than a preset third temperature threshold, and the difference between the inner ring temperature and the set temperature value is smaller than a preset fourth temperature threshold or a frequency reduction protection instruction generated by the air conditioner 1 is detected is met, the super-strong cooling mode needs to be exited, and the normal cooling mode is resumed.
Second embodiment
Referring to fig. 4, an embodiment of the invention provides an air conditioner refrigeration control device 6. The air-conditioning refrigeration control device 6 is applied to the air conditioner 1. Optionally, the air-conditioning refrigeration control device 6 includes: the device comprises an acquisition module 7, a judgment module 8 and an adjustment module 9.
And the acquisition module 7 is used for acquiring the relative humidity information of the region from the meteorological server.
And the judging module 8 is used for judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, the inner ring temperature and the outer ring temperature when the acquired relative humidity information is smaller than the first humidity threshold value.
Preferably, the determining module 8 is specifically configured to determine to enter the ultra-strong cooling mode when the difference between the inner ring temperature and the inner disc temperature exceeds a preset first temperature threshold and the outer ring temperature is between a second temperature threshold and a third temperature threshold.
The judgment module 8 is further configured to judge whether to enter the super-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, running time of the compressor 5 and running frequency of the compressor 5 when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold; wherein the second humidity threshold is greater than the first humidity threshold.
Preferably, the determining module 8 is further configured to determine to enter the ultra-strong cooling mode when the difference between the inner ring temperature and the inner disc temperature exceeds the first temperature threshold, the difference between the inner ring temperature and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor 5 is not lower than a preset time threshold, the running frequency of the compressor 5 reaches the normal running frequency, and the outer ring temperature is between the second temperature threshold and the third temperature threshold.
And the adjusting module 9 is configured to increase the operating frequency of the compressor 5 to the super-strong cooling frequency generated based on the conventional operating frequency corresponding to the conventional cooling mode or the highest cooling frequency of the compressor 5 if the air conditioner 1 enters the super-strong cooling mode from the conventional cooling mode.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In summary, the embodiments of the present invention provide an air conditioner refrigeration control method and apparatus, and an air conditioner. The air conditioner refrigeration control method and the air conditioner refrigeration control device can be applied to an air conditioner. The air conditioner is in communication connection with the meteorological server. The air conditioner refrigeration control method comprises the following steps: acquiring relative humidity information of the region from the meteorological server; when the acquired relative humidity information is smaller than a first humidity threshold value, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature and outer ring temperature; when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor running time and compressor running frequency; wherein the second humidity threshold is greater than the first humidity threshold; and if the air conditioner enters the ultra-strong refrigeration mode from the conventional refrigeration mode, increasing the running frequency of the compressor to the ultra-strong refrigeration frequency generated based on the conventional running frequency corresponding to the conventional refrigeration mode or the highest refrigeration frequency of the compressor. The humidity condition of the corresponding environment of the air conditioner is judged more accurately, and the phenomenon that condensation is generated due to the fact that the air conditioner enters the super-strong refrigeration mode by mistake under the working condition of high temperature and high humidity is avoided. And after entering the super-strong refrigeration mode, increasing the running frequency of the compressor to the super-strong refrigeration frequency or the highest refrigeration frequency. Therefore, the refrigerating effect of the air conditioner is improved while the generation of condensation is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. An air conditioner refrigeration control method is applied to an air conditioner (1), and is characterized in that the air conditioner (1) is in communication connection with a meteorological server, and the air conditioner refrigeration control method comprises the following steps:
acquiring relative humidity information of the region from the meteorological server;
when the acquired relative humidity information is smaller than a first humidity threshold value, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature and outer ring temperature;
when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold, judging whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor (5) running time and compressor (5) running frequency; wherein the second humidity threshold is greater than the first humidity threshold;
if the air conditioner (1) enters the super-strong refrigeration mode from a conventional refrigeration mode, increasing the operation frequency of a compressor (5) to the super-strong refrigeration frequency generated based on the conventional operation frequency corresponding to the conventional refrigeration mode or the highest refrigeration frequency of the compressor (5);
after entering the super-strong refrigeration mode, the air conditioner refrigeration control method further comprises the following steps:
acquiring the inner ring temperature, the inner disc temperature, the relative humidity information and the outer ring temperature according to a preset time period;
when the difference value between the inner ring temperature and the inner disc temperature is smaller than a fifth temperature threshold value, the normal refrigeration mode is recovered;
when the relative humidity information is greater than the second humidity threshold value, the normal refrigeration mode is resumed;
when the outer ring temperature is smaller than a preset second temperature threshold value or larger than a preset third temperature threshold value, the conventional refrigeration mode is recovered;
when the difference value between the inner ring temperature and the set temperature value is smaller than a preset fourth temperature threshold value, the conventional refrigeration mode is recovered;
when a frequency reduction protection instruction generated by the air conditioner (1) is detected, the conventional refrigeration mode is recovered; and the normal operation frequency is adopted in the operation process of the normal refrigeration mode.
2. The air conditioner refrigeration control method according to claim 1, wherein the manner of judging whether to enter the super-strong refrigeration mode according to the collected inner disc temperature, inner ring temperature and outer ring temperature comprises:
and when the difference value between the temperature of the inner ring and the temperature of the inner disc exceeds a preset first temperature threshold value and the temperature of the outer ring is between a second temperature threshold value and a third temperature threshold value, judging to enter the super-strong refrigeration mode.
3. The air conditioner refrigeration control method according to claim 1, wherein the manner of judging whether to enter the super-strong refrigeration mode according to the collected inner disc temperature, inner ring temperature, outer ring temperature, compressor (5) operation time and compressor (5) operation frequency comprises:
when the difference between the inner ring temperature and the inner disc temperature exceeds a first temperature threshold, the difference between the inner ring temperature and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor (5) is not lower than a preset time threshold, the running frequency of the compressor (5) reaches the conventional running frequency, and the outer ring temperature is between a second temperature threshold and a third temperature threshold, the super-strong refrigeration mode is judged to enter.
4. The air conditioner refrigeration control method according to claim 2 or 3, wherein the manner of generating the super high refrigeration frequency based on the normal operation frequency corresponding to the normal refrigeration mode comprises:
according to the conventional operating frequency and a preset coefficient, using a formula:
F=F1×c,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1Representing the normal operating frequency, c representing the preset coefficient, wherein the preset coefficient is more than 1 and less than 2; or
According to the conventional operating frequency and a preset constant, utilizing a formula:
F=F1+D,
calculating the super-strong refrigeration frequency, wherein F represents the super-strong refrigeration frequency, and F1Representing the normal operation frequency, and D representing the preset constant, wherein the value of the preset constant is less than 30 and greater than 0.
5. The air conditioner refrigeration control method as claimed in claim 1, wherein the value of the first humidity threshold value is not more than 60%, and the value of the second humidity threshold value is not more than 80%.
6. An air conditioner refrigeration controlling means is applied to air conditioner (1), its characterized in that, air conditioner (1) and meteorological server communication connection, air conditioner refrigeration controlling means (6) include:
the acquisition module (7) is used for acquiring the relative humidity information of the region from the meteorological server;
the judgment module (8) is used for judging whether to enter an ultra-strong refrigeration mode or not according to the acquired inner disc temperature, inner ring temperature and outer ring temperature when the acquired relative humidity information is smaller than a first humidity threshold value;
the judgment module (8) is further configured to judge whether to enter an ultra-strong refrigeration mode according to the acquired inner disc temperature, inner ring temperature, outer ring temperature, compressor (5) running time and compressor (5) running frequency when the acquired relative humidity information is smaller than a second humidity threshold and larger than a first humidity threshold; wherein the second humidity threshold is greater than the first humidity threshold;
the adjusting module (9) is used for increasing the operating frequency of the compressor (5) to the super-strong refrigerating frequency generated based on the conventional operating frequency corresponding to the conventional refrigerating mode or the highest refrigerating frequency of the compressor (5) if the air conditioner (1) enters the super-strong refrigerating mode from the conventional refrigerating mode;
after entering the super-strong refrigeration mode, the air-conditioning refrigeration control device is further configured to: acquiring the inner ring temperature, the inner disc temperature, the relative humidity information and the outer ring temperature according to a preset time period; when the difference value between the inner ring temperature and the inner disc temperature is smaller than a fifth temperature threshold value, the normal refrigeration mode is recovered; when the relative humidity information is greater than the second humidity threshold value, the normal refrigeration mode is resumed; when the outer ring temperature is smaller than a preset second temperature threshold value or larger than a preset third temperature threshold value, the conventional refrigeration mode is recovered; when the difference value between the inner ring temperature and the set temperature value is smaller than a preset fourth temperature threshold value, the conventional refrigeration mode is recovered; when a frequency reduction protection instruction generated by the air conditioner (1) is detected, the conventional refrigeration mode is recovered; and the normal operation frequency is adopted in the operation process of the normal refrigeration mode.
7. The air-conditioning refrigeration control device according to claim 6, wherein the determining module (8) is specifically configured to:
and when the difference value between the temperature of the inner ring and the temperature of the inner disc exceeds a preset first temperature threshold value and the temperature of the outer ring is between a second temperature threshold value and a third temperature threshold value, judging to enter the super-strong refrigeration mode.
8. The air-conditioning refrigeration control device according to claim 6, wherein the determining module (8) is specifically configured to:
when the difference between the inner ring temperature and the inner disc temperature exceeds a first temperature threshold, the difference between the inner ring temperature and the set temperature value exceeds a preset fourth temperature threshold, the running time of the compressor (5) is not lower than a preset time threshold, the running frequency of the compressor (5) reaches the conventional running frequency, and the outer ring temperature is between a second temperature threshold and a third temperature threshold, the super-strong refrigeration mode is judged to enter.
9. An air conditioner, characterized in that the air conditioner (1) further comprises:
one or more controllers (3);
memory (2) for storing one or more programs which, when executed by the one or more controllers (3), cause the one or more controllers (3) to carry out the method according to any one of claims 1-5.
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