CN115682305B - Method and device for controlling refrigeration operation of air conditioner - Google Patents
Method and device for controlling refrigeration operation of air conditioner Download PDFInfo
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- CN115682305B CN115682305B CN202211261955.3A CN202211261955A CN115682305B CN 115682305 B CN115682305 B CN 115682305B CN 202211261955 A CN202211261955 A CN 202211261955A CN 115682305 B CN115682305 B CN 115682305B
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005057 refrigeration Methods 0.000 title claims description 21
- 238000007710 freezing Methods 0.000 claims abstract description 65
- 238000010257 thawing Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 8
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 5
- 230000002528 anti-freeze Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Abstract
The invention provides a method and a device for controlling the refrigerating operation of an air conditioner, which improve the problems that the air outlet temperature and the service life of the compressor are influenced by the frequent start and stop of the compressor caused by the fact that the inner pipe temperature rapidly reaches the anti-freezing protection condition due to the strong refrigerating of certain air conditioners by setting the shortest operation time, and the air outlet temperature is uneven caused by the fact that the conventional low-temperature refrigerating air conditioner or an evaporator of the inner machine is frozen or the inner air outlet requirement cannot be met due to the fact that the anti-freezing protection is frequently entered, and the compressor is damaged.
Description
Technical Field
The present invention relates to the field of automatic control, and more particularly, to a method and apparatus for controlling a cooling operation of an air conditioner, and a non-transitory computer readable medium.
Background
With the improvement of living standard and the development of technology, the application range of the air conditioner and the requirements and application areas of the air conditioner are also enlarged, and at present, the air conditioner is not limited to the installation and application of the air conditioner in a household room and a living room, and has certain application value in certain industries with short-time special requirements on refrigeration. For example, fresh seafood, vegetables and fruits have requirements on storage temperature in order to ensure the taste of the real objects, the space of a refrigerator is limited, and the freezing and refrigerating cabinet is limited to occasions for use, and the fresh-keeping temperature requirement can be met as an air conditioner with a low-temperature refrigerating function.
However, at present, although a low-temperature refrigeration air conditioner exists, the air conditioner operates at a low-temperature refrigeration working condition for a long time at a high frequency, and after frosting of an evaporator, the air conditioner does not enter anti-freezing protection in time, so that the change of a wind field of an indoor unit causes the icing of the evaporator to influence the refrigeration effect; and the air conditioner is operated under low temperature, frequently enters anti-freezing protection, has poor refrigerating effect, can not meet the requirement of users on the temperature of air outlet, and simultaneously frequently enters protection, and the compressor is frequently started and stopped, so that the service life of the compressor is influenced.
Disclosure of Invention
The invention provides a method and a device for controlling the refrigeration operation of an air conditioner, which can solve the hidden danger of freezing of an evaporator under low-temperature refrigeration and ensure stable and uniform cold air output; the refrigerating effect is improved, and the service life of the compressor is prolonged.
According to a first aspect of the present invention, there is provided a method of controlling a cooling operation of an air conditioner, the method comprising:
detecting the continuous running time of a compressor of the air conditioner which is started at one time;
collecting the real-time tube temperature of an evaporator of an indoor unit of the air conditioner;
And judging whether anti-freezing protection is carried out or not according to the real-time tube temperature of the evaporator and the continuous running time of the compressor.
Optionally, before the determining whether to perform the anti-freezing protection by combining the real-time tube temperature of the evaporator and the continuous operation time of the compressor, the method further comprises:
Acquiring preset shortest running time of the compressor; the shortest running time of the compressor is the shortest running time of the whole machine entering the anti-freezing protection process after the air conditioner enters the low-temperature refrigeration working condition;
Acquiring a preset evaporator temperature threshold, wherein the evaporator temperature threshold is a temperature threshold when the evaporator is required to be subjected to anti-freezing protection;
the step of judging whether to perform anti-freezing protection according to the real-time pipe temperature of the evaporator and the continuous running time of the compressor comprises the following steps:
and judging whether the air conditioner is controlled to enter anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the temperature threshold value of the evaporator.
Optionally, the judging whether the air conditioner is controlled to enter the anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the evaporator temperature threshold value comprises:
And if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold of the evaporator and the continuous running time of the compressor is smaller than the shortest running time of the compressor, controlling the air conditioner to run in a down-frequency mode until the continuous running time of the compressor is larger than or equal to the shortest running time of the compressor, and enabling the air conditioner to enter anti-freezing protection and defrosting of the evaporator.
Optionally, determining whether to control the air conditioner to enter the anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the evaporator temperature threshold value comprises:
And if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold of the evaporator and the running time of the compressor is larger than or equal to the shortest running time of the compressor, controlling the air conditioner to enter anti-freezing protection, and executing defrosting action on the evaporator.
Optionally, the judging whether the air conditioner is controlled to enter the anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the evaporator temperature threshold value comprises:
if the evaporator real-time pipe Wen Dayu is the evaporator temperature threshold and the continuous operation time of the compressor is greater than or equal to the shortest operation time of the compressor, re-recording the operation time of the compressor, and recording the operation time as the new operation time of the compressor; controlling the operation of the air conditioner by combining the new compressor operation time and the evaporator real-time tube temperature;
And if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold of the evaporator and the running time of the compressor is larger than or equal to the shortest running time of the compressor, controlling the air conditioner to enter anti-freezing protection, and executing defrosting action on the evaporator.
Optionally, the judging whether the air conditioner is controlled to enter the anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the evaporator temperature threshold value further comprises:
Acquiring preset compensation running time of the compressor;
When the running time of the new compressor reaches the compensation running time, the air conditioner automatically enters into anti-freezing protection, and the evaporator starts defrosting;
the compensation operation time is set for the compensation time when the temperature of the evaporator tube does not reach the set evaporator temperature threshold after the minimum operation time condition of the compressor is met.
Optionally, if the new compressor running time does not reach the compensation running time and the real-time tube temperature of the evaporator is smaller than the evaporator temperature threshold, controlling the air conditioner to enter anti-freezing protection, and starting defrosting of the evaporator.
According to a second aspect of the present invention there is provided an apparatus for controlling the cooling operation of an air conditioner comprising one or more processors and a non-transitory computer readable storage medium storing program instructions which, when executed by the one or more processors, are operable to implement a method according to any one of the first aspects.
According to a third aspect of the present invention there is provided a non-transitory computer readable storage medium having stored thereon program instructions which, when executed by one or more processors, are adapted to carry out the method according to any of the first aspects.
According to a fourth aspect of the present invention there is provided an air conditioner employing the method of any one of the first aspects, or comprising the apparatus of the second aspect, or having a non-transitory computer readable storage medium according to the third aspect.
The invention provides a method and a device for controlling refrigeration operation of an air conditioner, which are characterized in that the continuous operation time of a compressor of the air conditioner and the real-time tube temperature of an evaporator of an indoor unit are obtained, wherein whether frequent start and stop of the compressor are caused by the fact that the compressor enters anti-freezing protection due to rapid refrigeration can be determined through the continuous operation time of the compressor, whether the anti-freezing protection condition is met or not can be monitored through the real-time tube temperature of the evaporator, and then the operation of the air conditioner is reasonably controlled based on the continuous operation time of the compressor and the real-time tube temperature of the evaporator of the indoor unit, so that the problem that the air outlet temperature is uneven due to the fact that the conventional low-temperature refrigeration air conditioner or the evaporator of the indoor unit is frozen, or the problem that the internal air outlet requirement cannot be met and the compressor is damaged due to the fact that the anti-freezing protection is frequently entered can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling a cooling operation of an air conditioner according to an embodiment of the present invention;
Fig. 2 is a method of controlling a cooling operation of an air conditioner according to another embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
As used herein, the terms "first," "second," and the like may be used to describe elements in exemplary embodiments of the present invention. These terms are only used to distinguish one element from another element, and the inherent feature or sequence of the corresponding element, etc. is not limited by the terms. Unless defined otherwise, all terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Those skilled in the art will understand that the devices and methods of the present invention described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, detailed descriptions of related known functions or configurations are omitted so as not to unnecessarily obscure the technical gist of the present invention. In addition, throughout the description, the same reference numerals denote the same circuits, modules or units, and repetitive descriptions of the same circuits, modules or units are omitted for brevity.
Furthermore, it should be understood that one or more of the following methods or aspects thereof may be performed by at least one control system, control unit, or controller. The terms "control unit", "controller", "control module" or "master control module" may refer to hardware devices including a memory and a processor, and the term "air conditioner" may refer to devices similar to heating and cooling devices. The memory or computer-readable storage medium is configured to store program instructions, and the processor is specifically configured to execute the program instructions to perform one or more processes that will be described further below. Moreover, it should be appreciated that the following methods may be performed by including a processor in combination with one or more other components, as will be appreciated by those of ordinary skill in the art.
The embodiment of the invention provides a method for controlling the refrigerating operation of an air conditioner, as shown in fig. 1, the method for controlling the refrigerating operation of the air conditioner at least can comprise the following steps S101 to S103.
S101, detecting the continuous running time of the compressor when the air conditioner is started at one time. The continuous operation time of the compressor may be the operation time of the compressor after the air conditioner is started to operate in a refrigeration mode at one time, that is, the continuous operation time of the air conditioner at one time. In this embodiment, the continuous running time of the compressor after the compressor is started up can be detected by the timer when the air conditioner is started up once.
S102, collecting the real-time tube temperature of an evaporator of an indoor unit of the air conditioner. The real-time tube temperature of the evaporator can be acquired by a temperature sensor.
S103, judging whether the anti-freezing protection is carried out or not according to the real-time pipe temperature of the evaporator and the continuous running time of the compressor.
In this embodiment, through obtaining the compressor continuous operation time of air conditioner and the real-time pipe temperature of indoor set evaporimeter, wherein, whether get into the frequent start-stop of anti-freeze protection and lead to the compressor because of quick refrigeration through compressor continuous operation time, whether can monitor the running condition who satisfies anti-freeze protection process through the real-time pipe temperature of evaporimeter, and then based on the operation of compressor continuous operation time and the real-time pipe temperature rational control air conditioner of indoor set evaporimeter, solve conventional low temperature refrigeration air conditioner or the freezing of indoor set evaporimeter and lead to the air-out temperature uneven problem, or frequently get into anti-freeze protection and lead to unable satisfying interior air-out demand and compressor loss problem. The anti-freezing protection process of the embodiment is a related process for performing anti-freezing protection on the internal machine evaporator, and after entering the anti-freezing protection process, the internal machine evaporator performs defrosting action.
In the embodiment of the present invention, the step S103 may further include executing the following steps A1 to A2 before determining whether to enter the anti-freezing protection according to the real-time pipe temperature of the evaporator and the continuous operation time of the compressor.
A1, acquiring preset shortest running time of a compressor; the shortest running time of the compressor is the shortest running time of the whole machine entering the anti-freezing protection after the air conditioner enters the low-temperature refrigeration working condition. The control program of the air conditioner is provided with the shortest running time T0 of the compressor, wherein the shortest running time T0 is the shortest running time of the whole machine entering the anti-freezing protection process after entering the low-temperature refrigeration working condition, namely the primary condition of the air conditioner entering the anti-freezing protection process. The anti-freezing protection process of the air conditioner is a working process of anti-freezing protection for defrosting an evaporator in the air conditioner when the air conditioner operates in a refrigerating mode, for example, a gaseous refrigerant discharged by a control compressor periodically enters the evaporator; the defrosting action of the evaporator is realized under the non-stop state, and the reliability of the compressor is improved. By setting the shortest running time, the problem that the compressor is frequently started and stopped due to the fact that the inner pipe temperature rapidly reaches the protection condition of entering the freezing prevention is solved, and therefore the air outlet temperature and the service life of the compressor are affected. The shortest running time T0 of the compressor is the shortest running time of the air conditioner reaching the required temperature range; wherein, the shortest running time T0 of the compressor of the air conditioner with the speed of 7k/9k is preferably 18-24min; the minimum operation time T0 of the compressor of the air conditioner with 12k-18k is preferably 12-18min, and the minimum operation time T0 of the compressor of the air conditioner with more than 24k is preferably 9-15min.
A2, acquiring a preset evaporator temperature threshold, wherein the evaporator temperature threshold is a temperature threshold when the evaporator is required to be subjected to anti-freezing protection. The evaporator temperature threshold in this example is noted as t0, and is sufficient to protect the evaporator temperature from freezing. When the air conditioner operates in low-temperature refrigeration, the temperature of the evaporator becomes low, frosting starts when the temperature is lower than 0 ℃, and when the detected temperature of the inner tube temperature is less than t0 (the set value of the inner tube temperature when the freezing prevention protection is entered), the frosting action of the evaporator is carried out; the preferred range of values for t0 is: -5 to-1 ℃.
The shortest operation time T0 of the compressor and the temperature threshold T0 of the evaporator in this embodiment may be set according to different models, different deployment space sizes and different refrigeration requirements, and the specific value of the present embodiment is not limited thereto.
Optionally, in combination with fig. 2, the step S103 of determining whether to enter the anti-freezing protection by combining the real-time tube temperature of the evaporator and the continuous operation time of the compressor may include the following B1.
And B1, judging whether the air conditioner is controlled to enter anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time tube temperature of the evaporator and the temperature threshold value of the evaporator.
Optionally, the above B1 includes:
and B11, if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold value of the evaporator and the continuous operation time of the compressor is smaller than the shortest operation time of the compressor, controlling the air conditioner to perform the down-frequency operation until the continuous operation time of the compressor is larger than or equal to the shortest operation time of the compressor, and enabling the air conditioner to enter the anti-freezing protection and defrosting of the evaporator.
Specifically, when the continuous running time T of the compressor is less than the shortest running time T0 of the compressor, the real-time tube temperature T of the evaporator is less than or equal to the temperature threshold T0 of the evaporator, which indicates that the running time of the air conditioner is not long, the indoor temperature is likely not meeting the set requirements of customers, the air conditioner is required to continuously run and output cold air to maintain the indoor low-temperature requirement, the variable-frequency air conditioner is in frequency-reducing running through the whole machine, the frosting condition of the evaporator is slowed down until the continuous running time T of the compressor is more than or equal to the shortest running time T0 of the compressor, the air conditioner timely enters the anti-freezing protection, and the frosting of the evaporator is performed.
Optionally, the above B1 further includes:
and B12, if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold value of the evaporator and the running time of the compressor is longer than or equal to the shortest running time of the compressor, controlling the air conditioner to enter anti-freezing protection, and executing defrosting action on the evaporator.
Specifically, when the continuous operation time T of the compressor is more than or equal to the shortest operation time T0 of the compressor, the real-time tube temperature T of the evaporator is less than or equal to the temperature threshold T0 of the evaporator, which indicates that the air conditioner is operated for the shortest time, and the inner tube temperature reaches the condition of entering the anti-freezing protection, the air conditioner enters the anti-freezing protection, and the evaporator enters the defrosting.
Optionally, the above B1 further includes:
B13, if the evaporator temperature threshold of the evaporator real-time pipe Wen Dayu is larger than or equal to the shortest running time of the compressor, the running time of the compressor is re-recorded and is recorded as the running time of the new compressor; and controlling the operation of the air conditioner by combining the new compressor operation time and the evaporator real-time pipe temperature.
When the continuous running time T of the compressor is more than or equal to the shortest running time T0 of the compressor, the real-time tube temperature T of the evaporator is more than the temperature threshold T0 of the evaporator, which indicates that the air conditioner is running for the shortest time, but the inner tube temperature of the evaporator does not meet the condition of entering the anti-freezing protection and can not perform defrosting action, at the moment, a compensation time calculating stage is entered, and the running time T' of the compressor is reckoned to be used as the running time of the new compressor.
Optionally, before the operation of the air conditioner is controlled by combining the new compressor operation time and the evaporator real-time tube temperature, a compensation time DeltaT is acquired; and the compensation time is set for the condition that the evaporator tube temperature t does not reach the entering temperature of the anti-freezing protection process after the shortest running time condition of the compressor is met. By setting the compensation time delta T, the problem that the temperature detected by the evaporator temperature sensing bag is deviated and the evaporator frosts and does not change due to the change of wind field under certain working conditions or places of the air conditioner is solved. In this embodiment, when the continuous operation time of the compressor satisfies the entering anti-freezing protection condition and the real-time tube temperature of the evaporator does not reach the required temperature, the provided operation time needs to be delayed, and the time is set according to the actual requirement; the specific range can be set according to the difference between the required temperature and the actual temperature, and the preferable range is 3-10min.
Optionally, the operation of the air conditioner controlled by combining the new compressor operation time and the evaporator real-time tube temperature in B13 further comprises:
b131, obtaining the compensation running time of the compressor; when the running time of the new compressor reaches the compensation running time, the air conditioner automatically enters into anti-freezing protection, and the evaporator starts defrosting;
the compensation running time is set for the compensation time when the temperature of the evaporator tube does not reach the set evaporator temperature threshold after the shortest running time condition of the compressor is met.
When the running time T' of the new compressor is not less than or equal to DeltaT, namely the running time DeltaT of the whole compressor is up to the compensation time DeltaT, the air conditioner automatically enters the anti-freezing protection and the evaporator starts defrosting even if the temperature of the inner pipe does not reach the anti-freezing protection condition. Therefore, the problem that the temperature of the evaporator temperature sensing bag is deviated due to the change of the wind field under certain working conditions or places of the air conditioner, and the evaporator frosts and does not change is solved.
Optionally, the operation of the air conditioner controlled by combining the new compressor operation time and the evaporator real-time tube temperature in B13 further comprises:
And B132, if the running time of the new compressor does not reach the compensation running time and the real-time tube temperature of the evaporator is smaller than the temperature threshold value of the evaporator, controlling the air conditioner to enter anti-freezing protection, and starting defrosting of the evaporator.
When the running time T' <deltaT of the new compressor is less than or equal to the temperature threshold T0 of the evaporator, the temperature of the inner tube reaches the condition of entering the anti-freezing protection, and the evaporator is defrosted.
There are two general types of defrosting circuits for air conditioners, one is to stop defrosting and make the frost melt by itself, which is not feasible when the temperature is low, and the time for melting the frost is long, and the air conditioner does not generally adopt the method. The other is thermal defrosting, that is, the evaporator inside the room is changed into the condenser by changing the reversing valve, and the defrosting effect can be achieved by considering the meaning of the exchange between the inner and outer machines. The defrosting controller is also an electric switch which uses the temperature control contact to act, and is a special temperature controller for removing the frost layer of the heat exchanger coil of the outdoor unit when the heat pump heats. The defrosting mode is generally reverse circulation ring thermal defrosting, namely, the electromagnetic reversing valve is reversed to achieve defrosting effect through switching on and off of contacts of a defrosting controller switch.
According to the method provided by the embodiment, the shortest running time of the compressor is set, so that the problem that the compressor is frequently started and stopped due to the fact that the inner pipe temperature rapidly reaches the anti-freezing protection condition due to the fact that some air conditioners are subjected to strong refrigeration is solved, and the air outlet temperature and the service life of the compressor are affected; by setting the compensation time, the problem that the temperature of the temperature sensing bag of the evaporator is deviated and the frosting of the evaporator is not caused by the change of the wind field of the air conditioner under certain working conditions or places is solved. And then can prevent frequently entering the protection of freeze-proof when in time entering the protection of freeze-proof after the evaporimeter frosts, satisfy the user and to the air-out temperature requirement, extension compressor life.
According to one or more embodiments of the present invention, there is also provided a non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are adapted to carry out the methods or procedures of the various embodiments of the present invention as shown above. According to an embodiment of the present invention, the rinsing control method of the air conditioner of the present invention is stored as a program in a readable storage medium, and the program for realizing each function may be stored in a recording medium such as a usb disk, a removable hard disk, an optical disk, a hard disk, or the like, in addition to a computer.
According to one or more embodiments of the present invention, there is also provided an apparatus for controlling a cooling operation of an air conditioner, including one or more processors and a non-transitory computer-readable storage medium storing program instructions, which when executed by the one or more processors, are configured to implement the method or flow in the various embodiments of the present invention as shown above.
According to one or more embodiments of the present invention, the present invention also includes an air conditioner employing the above-described method of the present invention, or including the apparatus for controlling a cooling operation of an air conditioner of the present invention, or having the above-described non-transitory computer-readable storage medium.
In accordance with one or more embodiments of the present invention, the method of controlling the cooling operation of an air conditioner of the present invention may implement the processing of the control method as described above of the present invention using encoded instructions (e.g., computer and/or machine readable instructions) stored on a non-transitory computer and/or machine readable medium (e.g., hard disk drive, flash memory, read only memory, optical disk, digital versatile disk, cache, random access memory, and/or any other storage device or storage disk) in which information is stored for any period of time (e.g., for extended periods of time, permanent, transient instances, temporary cache, and/or information cache). As used herein, the term "non-transitory computer-readable medium" is expressly defined to include any type of computer-readable storage device and/or storage disk and to exclude propagating signals and to exclude transmission media.
According to one or more embodiments of the present invention, the control system or control module of the air conditioner may include one or more processors and may also include a non-transitory computer readable medium therein. In particular, in the apparatus for controlling a cooling operation of an air conditioner (a main control system or a control module) of the present invention, a micro controller MCU may be included, which is disposed in the air conditioner, for various operations and various functions of the air conditioner for defrosting time prediction. The processor of the air conditioner having the rinse control function may be, for example, but not limited to, one or more single-core or multi-core processors. The processor(s) may include any combination of general-purpose processors and special-purpose processors (e.g., graphics processors, application processors, etc.). The processor may be coupled to and/or may include a memory/storage device and may be configured to execute instructions stored in the memory/storage device to implement various applications and/or operating systems running on the controller of the present invention.
The figures and detailed description of the invention referred to above as examples of the invention are intended to illustrate the invention, but not to limit the meaning or scope of the invention described in the claims. Accordingly, modifications may be readily made by one skilled in the art from the foregoing description. In addition, one skilled in the art may delete some of the constituent elements described herein without deteriorating the performance, or may add other constituent elements to improve the performance. Furthermore, one skilled in the art may vary the order of the steps of the methods described herein depending on the environment of the process or equipment. Thus, the scope of the invention should be determined not by the embodiments described above, but by the claims and their equivalents.
While the invention has been described in connection with what is presently considered to be practical, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (8)
1. A method of controlling a cooling operation of an air conditioner, the method comprising:
detecting the continuous running time of a compressor of the air conditioner which is started at one time;
collecting the real-time tube temperature of an evaporator of an indoor unit of the air conditioner;
Judging whether anti-freezing protection is carried out or not according to the real-time tube temperature of the evaporator and the continuous running time of the compressor;
The method further comprises, before the determining whether to perform the anti-freezing protection based on the real-time pipe temperature of the evaporator and the continuous operation time of the compressor:
Acquiring preset shortest running time of the compressor; the shortest running time of the compressor is the shortest running time of the whole machine entering the anti-freezing protection process after the air conditioner enters the low-temperature refrigeration working condition;
Acquiring a preset evaporator temperature threshold, wherein the evaporator temperature threshold is a temperature threshold when the evaporator is required to be subjected to anti-freezing protection;
the step of judging whether to perform anti-freezing protection according to the real-time pipe temperature of the evaporator and the continuous running time of the compressor comprises the following steps:
And if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold of the evaporator and the continuous running time of the compressor is smaller than the shortest running time of the compressor, controlling the air conditioner to run in a down-frequency mode until the continuous running time of the compressor is larger than or equal to the shortest running time of the compressor, and enabling the air conditioner to enter anti-freezing protection and defrosting of the evaporator.
2. The method according to claim 1, characterized in that: the judging whether the air conditioner is controlled to enter the anti-freezing protection according to the comparison result of the continuous operation time of the compressor and the shortest operation time of the compressor and the comparison result of the real-time pipe temperature of the evaporator and the temperature threshold value of the evaporator comprises the following steps:
And if the real-time tube temperature of the evaporator is smaller than or equal to the temperature threshold of the evaporator and the running time of the compressor is larger than or equal to the shortest running time of the compressor, controlling the air conditioner to enter anti-freezing protection, and executing defrosting action on the evaporator.
3. The method of claim 1, wherein said determining whether to control the air conditioner to enter anti-freeze protection based on a comparison of the compressor continuous run time and a compressor minimum run time and a comparison of the evaporator real-time tube temperature and an evaporator temperature threshold comprises:
If the evaporator real-time pipe Wen Dayu is the evaporator temperature threshold and the continuous operation time of the compressor is greater than or equal to the shortest operation time of the compressor, re-recording the operation time of the compressor, and recording the operation time as the new operation time of the compressor; and controlling the operation of the air conditioner by combining the new compressor operation time and the evaporator real-time tube temperature.
4. The method of claim 3, wherein said determining whether to control the air conditioner to enter anti-freeze protection based on a comparison of said compressor continuous run time and a compressor minimum run time and a comparison of said evaporator real-time tube temperature and an evaporator temperature threshold further comprises:
Acquiring preset compensation running time of the compressor;
When the running time of the new compressor reaches the compensation running time, the air conditioner automatically enters into anti-freezing protection, and the evaporator starts defrosting;
the compensation operation time is set for the compensation time when the temperature of the evaporator tube does not reach the set evaporator temperature threshold after the minimum operation time condition of the compressor is met.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
And if the running time of the new compressor does not reach the compensation running time and the real-time tube temperature of the evaporator is smaller than the temperature threshold value of the evaporator, controlling the air conditioner to enter anti-freezing protection, and starting defrosting of the evaporator.
6. An apparatus for controlling a cooling operation of an air conditioner, comprising one or more processors and a non-transitory computer readable storage medium storing program instructions which, when executed by the one or more processors, are operable to implement a method according to any one of claims 1-5.
7. A non-transitory computer readable storage medium having stored thereon program instructions which, when executed by one or more processors, are adapted to carry out the method according to any one of claims 1-5.
8. An air conditioner employing the method of any one of claims 1-5, or comprising the apparatus of claim 6, or having the non-transitory computer-readable storage medium of claim 7.
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