CN114484741A - Defrosting control method for air conditioning system and air conditioning system - Google Patents
Defrosting control method for air conditioning system and air conditioning system Download PDFInfo
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- CN114484741A CN114484741A CN202210110760.2A CN202210110760A CN114484741A CN 114484741 A CN114484741 A CN 114484741A CN 202210110760 A CN202210110760 A CN 202210110760A CN 114484741 A CN114484741 A CN 114484741A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The invention discloses a defrosting control method of an air conditioning system and the air conditioning system, when the air conditioning system is started and meets defrosting conditions, the air conditioning system is controlled to execute defrosting according to a set defrosting mode, and whether a subsequent defrosting mode is changed or not is judged according to the following modes: the method comprises the steps of controlling an air conditioning system to continuously execute defrosting of a set number of times according to a set defrosting mode, recording an execution period of each defrosting, judging the number of times of the set number of times of defrosting, wherein the execution period exceeds the number of times of a preset execution period, if the number of times is greater than a first set number of times, adopting an alternate defrosting mode to update the set defrosting mode, if the number of times is less than or equal to the first set number of times, adopting a synchronous defrosting mode to update the set defrosting mode, and when a defrosting condition is met again, adopting the updated set defrosting mode to defrost, so that the air conditioning system can update the defrosting mode timely along with the change of an outdoor environment, the adaptability of defrosting working conditions of the air conditioning system is improved, and the user experience is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to a defrosting control method of an air conditioner system and the air conditioner system.
Background
An air conditioner is an apparatus capable of cooling/heating a room. When the air conditioner is used for heating, water vapor in the air is condensed into frost on the surface of the outdoor heat exchanger, and the frost is thicker and thicker along with the passage of time, so that the air convection heat exchange of the outdoor heat exchanger is blocked, the heating effect of the air conditioner is further influenced, the outdoor heat exchanger needs to be defrosted at the moment, and particularly, under the working condition of high humidity such as heavy fog weather, the frost is fast and thick, and the high-frequency defrosting is more needed.
The defrosting mode of the existing air conditioner is mainly refrigeration defrosting, namely, the high-temperature refrigerant directly enters the outdoor heat exchanger to forcedly defrost through reversing of the four-way valve and countercurrent of the refrigerant, however, during the defrosting of the air conditioner when the air conditioner enters a refrigeration mode through a heating mode, the indoor heat exchanger absorbs heat as an evaporator, the indoor temperature can be reduced, and the use experience of a user is influenced.
Based on the idea of refrigeration and defrosting, in the existing air conditioning system comprising a plurality of air cooling units or the air conditioning system in which a single air cooling unit is jointly controlled by a plurality of independent defrosting systems, the defrosting modes are mainly divided into two modes, one mode is a synchronous defrosting mode, namely when the defrosting condition is met, the whole unit is completely switched into refrigeration and defrosting, the synchronous defrosting mode has the advantage of timely defrosting, but the problem of poor user experience caused by reduction of indoor temperature and large fluctuation of water temperature exists; the other mode is an alternate defrosting mode, namely, a plurality of outdoor heat exchangers are turned on for defrosting in turn, and when a single outdoor heat exchanger is defrosted, other outdoor heat exchangers keep a heating working condition, so that the defrosting mode has the advantages of keeping the indoor temperature not to be reduced and small water temperature fluctuation, but has the problem that low-voltage faults can be caused in the waiting process of the system.
Disclosure of Invention
The invention aims to provide an air conditioning system defrosting control method and an air conditioning system, which can realize that the air conditioning system automatically selects a defrosting mode according to the current working condition, avoid the problem that the user experience is reduced because rapid defrosting is always executed, also avoid the problem that low-voltage faults exist because alternate defrosting is always executed, and record the time point of defrosting mode switching, so that the air conditioning system can accurately select the defrosting mode by depending on recorded data when starting up along with the increase of the service time, thereby enabling the air conditioning system to be more suitable for the local climate environment when executing the defrosting mode, further improving the user experience, and also improving the universality of the air conditioning system in different areas.
The invention is realized by adopting the following technical scheme:
the defrosting control method of the air conditioning system is applied to the air conditioning system comprising a plurality of air cooling units or the air conditioning system of a single air cooling unit with a plurality of independent defrosting system joint controls; the method comprises the following steps:
1) when the defrosting condition is met, controlling the air conditioning system to execute defrosting according to a set defrosting mode;
2) continuously executing the step 1 with set times, and recording the execution period of each defrosting; the execution period is the time from the end of the previous defrosting to the end of the current defrosting;
3) judging the times that the execution period exceeds a preset execution period in the defrosting with set times;
4) when the times are more than the first set times, updating the set defrosting mode by adopting an alternate defrosting mode; when the times are less than or equal to a first set time, updating the set defrosting mode by adopting a synchronous defrosting mode;
5) and returning to the step 1.
Further, the method further comprises: 6) after each set time interval, the defrosting mode which is updated to the set defrosting mode most in the set time interval is judged and recorded.
Further, the method further comprises: if the defrosting mode is started within a set time period after the air conditioning system is installed for the first time, in the step 1, the set defrosting mode is a defrosting mode appointed by the system; if the air conditioning system starts the defrosting mode after a set time period after the air conditioning system is installed for the first time, in the step 1, the set defrosting mode is the defrosting mode with the maximum recording times in the same time period within a set period.
Further, step 3 of the method further comprises: and detecting the current outdoor environment temperature, and determining the preset execution period according to the current outdoor environment temperature.
Further, the method further comprises: the recording in step 6 includes: recording the defrosting mode which is updated to the set defrosting mode most; and, recording time information.
The air conditioning system comprises a plurality of air cooling units or a single air cooling unit which is jointly controlled by a plurality of independent defrosting systems; the method comprises the following steps:
the defrosting control module is used for controlling the air conditioning system to execute defrosting according to a set defrosting mode when the defrosting condition is met;
the defrosting mode determining module is used for controlling the defrosting control module to continuously execute defrosting for a set number of times according to a set defrosting mode and recording the execution period of each defrosting; judging the times that the execution period exceeds the preset execution period in the defrosting with the set times; when the times are more than the first set times, updating the set defrosting mode by adopting an alternate defrosting mode; and when the times are less than or equal to the first set times, updating the set defrosting mode by adopting the synchronous defrosting mode.
Further, the air conditioning system further includes: and the data recording module is used for reading the data of the defrosting mode determining module, judging that the defrosting mode which is updated to the largest set defrosting mode in the set time interval is updated in each set time interval, and recording the defrosting mode.
Further, the air conditioning system further includes: the defrosting mode switching module is used for appointing the set defrosting mode to be the defrosting mode appointed by the system to the defrosting control module when the air conditioning system starts the defrosting mode within the set time period after the air conditioning system is installed for the first time; when the air conditioning system starts a defrosting mode after a set time period after the air conditioning system is installed for the first time, recording data are obtained from the data recording module, and the set defrosting mode is appointed to the defrosting control module to be the defrosting mode with the maximum recording times in the same time period within the preset period.
Further, the defrost determination module is further to: and detecting the current outdoor environment temperature, and determining the preset execution period according to the current outdoor environment temperature.
Further, the data recording module is configured to: the defrost mode updated to the set defrost mode the most and the time information are recorded in the memory.
Compared with the prior art, the invention has the advantages and positive effects that: in the defrosting control method of the air conditioning system and the air conditioning system, when the air conditioning system is started and meets defrosting conditions, the air conditioning system is controlled to execute defrosting according to a set defrosting mode, and whether a subsequent defrosting mode is changed or not is judged according to the following modes: controlling an air conditioning system to continuously execute defrosting of a set number of times according to a set defrosting mode, recording an execution period of each defrosting, judging the number of times that the execution period exceeds the preset execution period in the defrosting of the set number of times, if the number of times is greater than a first set number of times, updating the set defrosting mode by adopting a turn defrosting mode, if the number of times is less than or equal to the first set number of times, updating the set defrosting mode by adopting a synchronous defrosting mode, and when the defrosting condition is met again, defrosting by adopting the updated set defrosting mode; based on the judgment of the defrosting execution period with the set times, if the air-conditioning system operates in an environment with low humidity, the execution periods of the defrosting with the continuously set times are all longer, and the humidity under the current environment condition can be determined not to be large according to the judgment, so that the subsequent defrosting film type can select the alternate defrosting film type aiming at the low humidity environment condition, the defrosting of the outdoor heat exchanger can be ensured, the stability of the indoor temperature can be ensured, if the air-conditioning system operates in an environment with high humidity, the execution periods of the defrosting with the continuously set times are all shorter, and the humidity under the current environment condition can be determined to be larger according to the judgment, so that the subsequent defrosting mode can select the synchronous defrosting mode aiming at the high humidity environment condition, and the timely defrosting of the outdoor heat exchanger is ensured, thereby ensuring the normal heating of the air-conditioning system; by combining with continuous judgment, the air-conditioning system provided by the invention can update the defrosting mode timely along with the change of the outdoor environment, so that the air-conditioning system can automatically select the defrosting mode according to the current working condition, the problem that the user experience is reduced because rapid defrosting is always executed is avoided, the problem that low-voltage faults exist because alternate defrosting is always executed is also avoided, and the adaptability of the defrosting working condition of the air-conditioning system is improved.
Furthermore, the invention records the updating condition of each defrosting mode during the operation of the air-conditioning system, judges the defrosting mode which is updated to the most set defrosting mode in the set time interval after every set time interval, and records the defrosting mode, so that the air-conditioning system can accurately select the defrosting mode by depending on the recorded data when being started along with the increase of the use time, thereby the air-conditioning system is more suitable for the local climate environment when executing the defrosting mode, the user experience is further improved, and the universality of the air-conditioning system in different areas is also improved.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating the steps of a defrosting control method for an air conditioning system according to the present invention;
FIG. 2 is a flowchart of a defrosting control method for an air conditioning system according to a first embodiment of the present invention;
fig. 3 is a system architecture diagram of an air conditioning system according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention aims to provide a defrosting control method of an air conditioning system, which enables the air conditioning system to timely adjust a defrosting mode according to environmental changes, reduces the problem of reducing indoor temperature and reducing user experience when a synchronous defrosting mode is always executed, also avoids the problem of low-voltage fault caused by the fact that an alternate defrosting mode is always executed, improves the regional universality of the air conditioning system, and improves the user experience.
In order to make the technical solution of the present invention clearer, the following concept is explained first.
The defrosting condition is not specifically limited in the application of the present invention, and any setting and application of the existing defrosting condition can be used as the judgment condition in the embodiment of the present invention, but basically, the influence of the outdoor environment humidity on the defrosting condition is not removed, when the outdoor environment humidity is high, the frosting on the outdoor heat exchanger is fast, and when the outdoor environment humidity is low, the frosting on the outdoor heat exchanger is relatively slow.
And in the synchronous defrosting mode, in the air-conditioning system comprising a plurality of air-cooling units or the air-conditioning system of a single air-cooling unit with a plurality of independent defrosting system joint control, the synchronous defrosting refers to that all outdoor heat exchangers simultaneously execute defrosting after the four-way valve switches the refrigeration mode.
In the alternate defrosting mode, in an air conditioning system comprising a plurality of air cooling units or an air conditioning system of a single air cooling unit with a plurality of independent defrosting system joint controls, the alternate defrosting refers to that one part (at least one part) of the outdoor heat exchangers carries out defrosting, and the other part of the outdoor heat exchangers still operate under the heating condition.
The defrosting execution period is the time from the end of the previous defrosting to the end of the current defrosting.
In combination with the above, specifically, as shown in fig. 1, the defrosting control method for an air conditioning system provided by the present invention includes:
step S1: and when the defrosting condition is met, controlling the air conditioning system to execute defrosting according to the set defrosting mode.
After the air conditioning system starts the heating working condition, frost is accumulated on the outdoor heat exchanger along with the increase of the service time until the defrosting condition is met, and the air conditioning system is switched to a defrosting mode to defrost.
In the present application, the defrosting mode includes a synchronous defrosting mode and a rotating defrosting mode, and the defrosting mode is set to be one of the two modes, which may be specified by default for the system, may be set by selection of a user, or may be counted according to an empirical value.
Step S2: and continuously executing the defrosting for the set times according to the set defrosting mode, and recording the execution period of each defrosting.
According to the set defrosting mode, once defrosting is executed when a defrosting condition is met until a set number n of times is met, and in the period of executing once defrosting, the execution period Ti is recorded as 1, 2, … …, n.
Step S3: and judging the times of the execution period exceeding the preset execution period in the defrosting with the set times.
Taking the preset execution period as T0 as an example, the number of times Tn > T0 is determined.
Step S4: when the times are larger than the first set times, the alternate defrosting mode is adopted to update the set defrosting mode, and when the times are smaller than or equal to the first set times, the synchronous defrosting mode is adopted to update the set defrosting mode.
Taking the first set number of times as M for example, when the number of times M of Tn > T0 is greater than M, the set defrost mode in the alternate defrost mode updating step S1 is adopted, and when M is less than or equal to M, the set defrost mode is updated by adopting the synchronous defrost mode.
Returning to step S1, that is, when the defrosting condition is satisfied again, the updated set defrosting mode is used to defrost.
Based on the judgment of the defrosting execution period with the set times, if the air-conditioning system operates in an environment with low humidity, the execution periods of the defrosting with the continuously set times are all longer, and the humidity under the current environment condition can be determined not to be large according to the judgment, so that the subsequent defrosting film type can select the alternate defrosting film type aiming at the low humidity environment condition, the defrosting of the outdoor heat exchanger can be ensured, the stability of the indoor temperature can be ensured, if the air-conditioning system operates in an environment with high humidity, the execution periods of the defrosting with the continuously set times are all shorter, and the humidity under the current environment condition can be determined to be larger according to the judgment, so that the subsequent defrosting mode can select the synchronous defrosting mode aiming at the high humidity environment condition, and the timely defrosting of the outdoor heat exchanger is ensured, thereby ensuring the normal heating of the air-conditioning system; by combining continuous judgment, the air conditioning system provided by the invention can update the defrosting mode timely along with the change of the outdoor environment, so that the air conditioning system can automatically select the defrosting mode according to the current working condition, the problem that the user experience is reduced because quick defrosting is always executed is avoided, the problem that low-voltage faults exist because alternate defrosting is always executed is also avoided, and the adaptability of the defrosting working condition of the air conditioning system is improved.
The following describes in detail a process of applying the defrosting control method of the air conditioning system to perform defrosting in the air conditioning system according to a specific embodiment.
Example one
As shown in fig. 2, the defrosting control method of the air conditioning system according to the present embodiment includes the following steps:
step S21: and when the defrosting condition is met, controlling the air conditioning system to execute defrosting according to the set defrosting mode.
After the air conditioning system starts the heating working condition, frost is accumulated on the outdoor heat exchanger along with the increase of the service time until the defrosting condition is met, and the air conditioning system is switched to a defrosting mode to defrost.
In this embodiment, when the air conditioning system is initially installed, the set defrost mode is designated by default, or is set by the user according to the local environmental conditions after the air conditioning system is initially installed, for example, if the area climate of the air conditioning system installation is humid, the set defrost mode may be set as the synchronous defrost mode, and if the area climate of the air conditioning system installation is dry, the set initial mode may be set as the alternate defrost mode.
Step S22: and continuously executing the defrosting for the set times according to the set defrosting mode, and recording the execution period of each defrosting.
According to the set defrosting mode, once defrosting is performed when the defrosting condition is satisfied until the set number of times 5 is satisfied, and in the period of time, every time defrosting is performed, the execution periods T1, T2, T3, T4 and T5 are recorded.
Step S23: and judging the times of the execution period exceeding the preset execution period in the defrosting with the set times.
Taking the preset execution period as T0 as an example, the number of Tn > T0 is determined.
In this embodiment, the preset execution period T0 is an empirical value or a statistical value recorded in the system, and the corresponding preset execution period T0 is different at different outdoor environment temperatures, and before the air conditioning system determines the current outdoor environment temperature, the current outdoor environment temperature is obtained in the manners of an outdoor temperature sensor, network synchronization information, and the like, and the preset execution period is determined according to the current outdoor environment temperature reading system record value.
Step S24: when the times are larger than the first set times, the alternate defrosting mode is adopted to update the set defrosting mode, and when the times are smaller than or equal to the first set times, the synchronous defrosting mode is adopted to update the set defrosting mode.
Taking the first set number of times as 3 as an example, when the number of times M of Tn > T0 is greater than 3, the set defrost mode in the alternate defrost mode updating step S1 is adopted, and when M is less than or equal to 3, the set defrost mode is updated by adopting the synchronous defrost mode.
Returning to step S21, that is, when the defrosting condition is satisfied again, the updated set defrosting mode is used to defrost.
Step S25: after each set time interval, the defrosting mode which is updated to the set defrosting mode most in the set time interval is judged and recorded.
Based on the loop execution of steps S21 to S24, after every 5 defrosting cycles, the set defrosting mode is updated, under the working condition that the environment is relatively dry, the defrosting execution cycle is relatively long, the defrosting mode updated to the set defrosting mode the most is the alternate defrosting mode, under the working condition that the environment is relatively humid, the outdoor heat exchanger frosts quickly, the defrosting execution cycle is relatively short, and the defrosting mode updated to the set defrosting mode is the synchronous defrosting mode.
In this embodiment, taking the set time interval as 3 hours as an example, every three hours, the defrost mode updated to the set defrost mode with the most number is counted, the defrost mode updated to the set defrost mode with the most number is recorded, and the corresponding time information is recorded, for example, as shown in the following table one:
watch 1
In the actual statistical record, if the air conditioning system is not operated when being shut down, the defrosting mode in the corresponding time period can be synchronized with the information recorded last time before the air conditioning system is shut down, or synchronized with the information recorded first time after the air conditioning system is started.
Step S26: and when the defrosting mode is started after the set time period after the air conditioning system is installed for the first time, reading the recorded data, and selecting the defrosting mode with the maximum recording times in the same time period within the preset period as the set defrosting mode.
For example, in a year, the air conditioning system controls defrosting according to the steps shown in the steps from S21 to S25 within a year after the air conditioning system is initially installed, and after the air conditioning system is installed for a full year, the set defrosting mode when the air conditioning system starts defrosting is not set by default, or manually set by a user, and the defrosting mode with the largest number of records in the same time period in the last year is selected as the set defrosting mode to start defrosting.
According to the technical means, the updating condition formula of each defrosting mode is recorded during the operation of the air conditioning system, the defrosting mode which is updated to the largest set defrosting mode in the set time interval is judged after the set time interval, and the defrosting mode is recorded, so that the air conditioning system can accurately select the defrosting mode by means of the recorded data when the air conditioning system is started along with the increase of the service time, the air conditioning system is more adaptive to the local climate environment when the defrosting mode is executed, the user experience is further improved, and the universality of the air conditioning system in different areas is also improved.
Example two
The embodiment provides an air conditioning system, which is used for supporting the defrosting control method of the air conditioning system provided by the invention and comprises a plurality of air cooling units or a single air cooling unit with a plurality of independent defrosting systems in joint control; as shown in fig. 3, includes:
and the defrosting control module 31 is used for controlling the air conditioning system to execute defrosting according to the set defrosting mode when the defrosting condition is met.
A defrosting mode determining module 32, configured to control the defrosting control module 31 to continuously execute defrosting for a set number of times according to a set defrosting mode, and record an execution period of each defrosting; judging the times that the execution period exceeds the preset execution period in the defrosting with the set times; when the times are more than the first set times, updating the set defrosting mode by adopting an alternate defrosting mode; and when the times are less than or equal to the first set times, updating the set defrosting mode by adopting the synchronous defrosting mode. Further, the defrosting determination module 32 is further configured to detect a current outdoor environment temperature, and determine a preset execution period according to the current outdoor environment temperature.
Further, the air conditioning system further includes:
and a data recording module 33, configured to read the data of the defrosting mode determining module 32, and after each set time interval, determine and record the defrosting mode updated to the largest set defrosting mode in the set time interval.
Further, the air conditioning system further includes:
the defrosting mode switching module 34 is configured to, when the air conditioning system starts a defrosting mode within a set time period after the air conditioning system is installed for the first time, designate a set defrosting mode to the defrosting control module 31 as a system-designated defrosting mode; when the air conditioning system starts the defrosting mode after the set time period after the air conditioning system is installed for the first time, the recording data is acquired from the data recording module 33, and the defrosting mode is set to be the defrosting mode with the maximum recording frequency in the same time period within the preset period.
Further, the data recording module 33 records the defrost mode updated to the set defrost mode the most and the time information in the memory.
It should be noted that, in a specific implementation process, the control part may be implemented by a processor in a hardware form executing a computer execution instruction in a software form stored in a memory, which is not described herein, and all programs corresponding to actions executed by the control part may be stored in a computer readable storage medium of the system in a software form, so that the processor can call and execute operations corresponding to the above modules.
The computer-readable storage media above may include volatile memory, such as random access memory; non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; combinations of the above categories of memory may also be included.
The processor referred to above may also be referred to collectively as a plurality of processing elements. For example, the processor may be a central processing unit, but may also be other general purpose processors, digital signal processors, application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the like. A general-purpose processor may be a microprocessor, or may be any conventional processor or the like, or may be a special-purpose processor.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should also make changes, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. A defrosting control method of an air conditioning system is applied to the air conditioning system comprising a plurality of air cooling units or the air conditioning system of a single air cooling unit with a plurality of independent defrosting system joint controls;
it is characterized by comprising:
1) when the defrosting condition is met, controlling the air conditioning system to execute defrosting according to a set defrosting mode;
2) continuously executing the step 1 with set times, and recording the execution period of each defrosting; the execution period is the time from the end of the previous defrosting to the end of the current defrosting;
3) judging the times that the execution period exceeds the preset execution period in the defrosting with the set times;
4) when the times are more than the first set times, updating the set defrosting mode by adopting an alternate defrosting mode; when the times are less than or equal to a first set time, updating the set defrosting mode by adopting a synchronous defrosting mode;
5) and returning to the step 1.
2. The air conditioning system defrost control method of claim 1, further comprising:
6) after each set time interval, the defrosting mode which is updated to the set defrosting mode most in the set time interval is judged and recorded.
3. The air conditioning system defrost control method of claim 2, further comprising:
if the defrosting mode is started within a set time period after the air conditioning system is installed for the first time, in the step 1, the set defrosting mode is a defrosting mode appointed by the system;
if the air conditioning system starts the defrosting mode after a set time period after the air conditioning system is installed for the first time, in the step 1, the set defrosting mode is the defrosting mode with the maximum recording times in the same time period within a set period.
4. The air conditioning system defrost control method of claim 1, step 3 of the method further comprising:
and detecting the current outdoor environment temperature, and determining the preset execution period according to the current outdoor environment temperature.
5. The air conditioning system defrost control method of claim 2, further comprising:
the recording in step 6 includes: recording the defrosting mode which is updated to the set defrosting mode most; and, recording time information.
6. An air conditioning system comprises a plurality of air cooling units or a single air cooling unit which is jointly controlled by a plurality of independent defrosting systems;
it is characterized by comprising:
the defrosting control module is used for controlling the air conditioning system to execute defrosting according to a set defrosting mode when the defrosting condition is met;
the defrosting mode determining module is used for controlling the defrosting control module to continuously execute defrosting for a set number of times according to a set defrosting mode and recording the execution period of each defrosting; judging the times that the execution period exceeds a preset execution period in the defrosting with set times; when the times are more than the first set times, updating the set defrosting mode by adopting an alternate defrosting mode; and when the times are less than or equal to the first set times, updating the set defrosting mode by adopting the synchronous defrosting mode.
7. The air conditioning system of claim 6, further comprising:
and the data recording module is used for reading the data of the defrosting mode determining module, judging that the defrosting mode which is updated to the largest set defrosting mode in the set time interval is updated in each set time interval, and recording the defrosting mode.
8. The air conditioning system of claim 7, further comprising:
the defrosting mode switching module is used for appointing the set defrosting mode to be the defrosting mode appointed by the system to the defrosting control module when the air conditioning system starts the defrosting mode within the set time period after the air conditioning system is installed for the first time; when the air conditioning system starts a defrosting mode after a set time period after the air conditioning system is installed for the first time, recording data are obtained from the data recording module, and the set defrosting mode is appointed to the defrosting control module to be the defrosting mode with the maximum recording times in the same time period within the preset period.
9. The air conditioning system of claim 6, wherein the defrost determination module is further to:
and detecting the current outdoor environment temperature, and determining the preset execution period according to the current outdoor environment temperature.
10. The air conditioning system of claim 6, wherein the data logging module is configured to:
the defrost mode updated to the set defrost mode the most and the time information are recorded in the memory.
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