CN112696792B - Defrosting control method and device for air conditioner, electronic equipment and storage medium - Google Patents
Defrosting control method and device for air conditioner, electronic equipment and storage medium Download PDFInfo
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- CN112696792B CN112696792B CN202011529818.4A CN202011529818A CN112696792B CN 112696792 B CN112696792 B CN 112696792B CN 202011529818 A CN202011529818 A CN 202011529818A CN 112696792 B CN112696792 B CN 112696792B
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
Abstract
The application relates to a defrosting control method of an air conditioner. The method comprises the following steps: detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode; if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to a first pause time; if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency increasing according to a second pause time; if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third pause time; the compressor runs at the same frequency in the pause time, and the pause time is a first pause time, a second pause time and a third pause time from small to large in sequence. The scheme that this application provided can guarantee that air condition compressor carries out controllable raising frequency, avoids the air conditioner to get into behind the defrosting mode compressor because of raising frequency leads to the unit to appear unusually too fast.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a defrosting control method and device for an air conditioner, electronic equipment and a storage medium.
Background
When the daily air conditioner operates in heating, the condenser of the outer unit continuously absorbs heat, water vapor in the air can be condensed into frost on the condenser fins, when the frost layer reaches a certain thickness, the heat exchange effect of the outer unit can be influenced, and the heating operation can be performed for one time for defrosting.
The defrosting mode commonly used at present is a four-way valve reversing mode, a system is switched to a refrigeration cycle, an internal fan and an external fan are turned off, a high-temperature refrigerant discharged from a compressor directly enters a condenser, and the condenser is defrosted completely through the high-temperature refrigerant.
Spring and autumn in one year are transition seasons, and if the air conditioner is operated for heating for a long time in the transition seasons, the outdoor condenser has certain probability of frost-free defrosting. When the outdoor condenser of the air conditioner enters frostless defrosting, the frequency rising speed of the compressor is high during the effective defrosting of the system, the time of the operation frequency pause point is short, the high-frequency operation time is long, the temperature of the top of the compressor is overhigh, the system is possibly protected frequently, the unit is unstable in long-time operation, inconvenience is brought to users, and the comfort is affected.
Patent publication No. CN106052229A provides an air conditioner defrosting control method and system. The method comprises the following steps: when the air conditioner operates in the heating mode, judging whether the air conditioner meets a defrosting condition; if the air conditioner meets the defrosting condition, detecting the outdoor environment temperature, and judging whether the outdoor environment temperature is less than a first preset temperature; if the outdoor environment temperature is lower than a first preset temperature, detecting the temperature of an external machine pipeline of the air conditioner, and controlling the air conditioner to enter a first defrosting mode when the temperature of the external machine pipeline is lower than or equal to a second preset temperature for a first preset time; and if the outdoor environment temperature is greater than or equal to a first preset temperature, detecting the temperature of an external machine pipeline of the air conditioner, and controlling the air conditioner to enter a second defrosting mode when the temperature of the external machine pipeline is less than or equal to a second preset temperature for a second preset time. The probability of mistaken defrosting of the air conditioner is greatly reduced, and the reliability of the air conditioner is improved.
Patent publication No. CN109737560A provides an air conditioner defrosting control method, an air conditioner defrosting control device and an air conditioner, wherein the air conditioner defrosting control method comprises the following steps: continuously acquiring the temperature of an outer pipe of the air conditioner at preset time intervals; the acquired outer tube temperature data set is compared with the preset temperature, and the air conditioner is controlled to defrost when the acquired outer tube temperature data meet the preset condition, so that the phenomenon that frequent defrosting or frostless defrosting occurs is avoided, and the heating comfort of the air conditioner is influenced. Through acquireing outer tube temperature data group, the observation cycle to the air conditioner is prolonged simultaneously, and the control air conditioner changes the frost when a plurality of outer tube temperature data that acquire satisfy the default condition, avoids appearing frequently changing the frost or the phenomenon that does not have the frost changes the heating travelling comfort of air conditioner, improves the precision that does not have outdoor environment temperature sensing device air conditioner to change the frost.
The existing air conditioner defrosting control method mainly focuses on how to accurately control the air conditioner to enter effective defrosting, avoids the phenomenon of frequent defrosting or no defrosting, does not consider the condition that the air conditioner leads to unit abnormity due to too fast frequency rise of the air conditioner in the defrosting operation process, and influences unit defrosting and user use experience.
Disclosure of Invention
In order to solve the problems in the related art, the air conditioner defrosting control method can be used for performing controllable frequency rising on an air conditioner compressor, and avoids the phenomenon that the compressor generates abnormity due to too fast frequency rising after entering defrosting.
The first aspect of the application provides a defrosting control method of an air conditioner, which comprises the steps of detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode;
if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to the first dwell time;
if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency raising according to a second dwell time;
and if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third dwell time.
In a first possible implementation manner of the first aspect, before the detecting the current compressor frequency after the air conditioner enters the high-temperature defrosting mode, the method further includes:
detecting the outdoor environment temperature;
comparing the outdoor environment temperature with a preset outdoor environment temperature threshold value;
and if the outdoor environment temperature is less than the outdoor environment temperature threshold value, controlling the air conditioner to enter a normal defrosting mode.
With reference to the first possible implementation method of the first aspect, in a second possible implementation method, after the comparing the outdoor environment temperature with the preset outdoor environment temperature threshold, the method further includes:
and if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold value, controlling the air conditioner to enter a high-temperature defrosting mode.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, after the controlling the air conditioner to enter the high-temperature defrosting mode, the method further includes:
continuing to compare the outdoor ambient temperature to the outdoor ambient temperature threshold;
and if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold within the preset time, controlling the air conditioner to keep the high-temperature defrosting mode.
With reference to the third possible implementation method of the first aspect, in a fourth possible implementation method, after the continuously comparing the outdoor environment temperature with the outdoor environment temperature threshold, the method further includes:
and if the outdoor environment temperature smaller than the outdoor environment temperature threshold value appears within the preset time, controlling the air conditioner to enter a heating mode.
With reference to the second possible implementation manner of the first aspect, in a fifth possible implementation manner, before the controlling the compressor to perform the frequency increasing according to the first pause time, the method further includes:
determining the first dwell time according to the following formula one;
the formula I is as follows: y1 ═ B (T1-C)
In the formula: y1 is the first dwell time, B is the slope of the linear equation, T1 is the outdoor ambient temperature before the air conditioner enters into defrosting, and C is a constant value of the linear equation.
With reference to the second possible implementation method of the first aspect, in a sixth possible implementation method, before the controlling the compressor to perform the frequency up-conversion according to the third dwell time, the method includes:
determining the third dwell time according to the following formula two;
the formula II is as follows: y2 ═ B (T1-C) + T2
In the formula: y2 is the third dwell time, B is the slope of the linear equation, T1 is the outdoor ambient temperature before the air conditioner enters the defrosting mode, T2 is the outdoor ambient temperature after the air conditioner enters the defrosting mode, and C is the constant value of the linear equation.
The second aspect of the present application provides a defrosting control device of an air conditioner, comprising a detection unit, a determination unit and an up-conversion unit;
the detection unit is used for detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode;
the judging unit is used for controlling the frequency increasing unit to increase the frequency according to a first pause time if the current compressor frequency is less than or equal to a first compressor frequency; if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the frequency increasing unit to increase the frequency according to a second dwell time; if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the frequency increasing unit to increase the frequency according to a third dwell time; the compressor is operated at the same frequency during the pause time, and the pause time is a first pause time, a second pause time and a third pause time from small to large.
A third aspect of the present application provides an electronic device comprising:
a processor; and
a memory having executable code stored thereon, which when executed by the processor, causes the processor to perform the method as described above.
A fourth aspect of the present application provides a non-transitory machine-readable storage medium having stored thereon executable code, which when executed by a processor of an electronic device, causes the processor to perform a method as described above.
The technical scheme provided by the application can comprise the following beneficial effects:
according to the scheme, the current compressor frequency after the air conditioner enters the high-temperature defrosting mode is detected; then, decision control is performed based on the detected frequency: if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to the first pause time; if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency increasing according to a second pause time; and if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third dwell time. By controlling the pause time of the compression running frequency of the air conditioner after the air conditioner enters the high-temperature defrosting mode, the controllable frequency rising of the air conditioner compressor is ensured, and the phenomenon that the compressor is abnormal due to the fact that the frequency rising is too fast after the air conditioner enters the defrosting mode is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the application.
Fig. 1 is a schematic flow chart illustrating a defrosting control method of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is another schematic flow chart illustrating a defrosting control method of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of a defrosting control device of an air conditioner according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device shown in an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. 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 application, "a plurality" means two or more unless specifically limited otherwise.
The existing air conditioner defrosting control method mainly focuses on how to accurately control the air conditioner to enter effective defrosting, avoids the phenomenon of frequent defrosting or no defrosting, does not consider the condition that the air conditioner leads to unit abnormity due to too fast frequency rise of the air conditioner in the defrosting operation process, and influences unit defrosting and user use experience.
In view of the above problems, the embodiment of the application provides a defrosting control method for an air conditioner, which can ensure that a unit is not abnormal due to too fast frequency rise of a compressor after the air conditioner enters a defrosting mode.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart illustrating a defrosting control method of an air conditioner according to an embodiment of the present application.
Referring to fig. 1, an embodiment of a defrosting control method of an air conditioner in an embodiment of the present application includes:
101. detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode;
the high-temperature defrosting mode is a higher-level air conditioner defrosting mode than the normal defrosting mode, the high-temperature defrosting mode provides more defrosting heat for an air conditioner condenser, and the high-temperature defrosting mode is generally used in transition seasons. The air temperature is lower in spring and autumn, a user can heat through the air conditioner to enable the indoor environment to reach a comfortable temperature, the air conditioner frosts due to heating, the air conditioner needs to defrost, the air conditioner needs to provide enough heat to enable the temperature of the condenser to be higher than the outdoor temperature, and then the outdoor temperature is higher than the outdoor temperature in winter, so that the defrosting heat which needs to be provided is more, and the air conditioner can enter a high-temperature defrosting mode to provide enough heat.
The air conditioner compressor functions to compress a driving refrigerant in an air conditioner refrigerant circuit. An air conditioner compressor is generally installed in an outdoor unit. The air conditioner compressor extracts the refrigerant from a low-pressure area, compresses the refrigerant and sends the compressed refrigerant to a high-pressure area for cooling and condensation, heat is emitted into air through the radiating fins, the refrigerant is changed from a gas state into a liquid state, and the pressure is increased.
The frequency of the compressor of the inverter air conditioner can change according to the actual working requirement of the air conditioner, such as: the air conditioner enters a high-temperature defrosting mode from a normal defrosting mode, and because more heat is needed for defrosting, the frequency of the compressor is increased, and only if the operating frequency is increased, more electric energy can be converted into heat energy within the same working time, so that the working requirement of the air conditioner is met.
In the embodiment of the application, after the air conditioner enters the high-temperature defrosting mode, the running frequency of the compressor during high-temperature defrosting is detected in real time.
102. If the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to a first pause time;
the process that the frequency of the air conditioner compressor changes has frequency pause time, the air conditioner compressor is to be changed from the current frequency to another frequency, the air conditioner runs for a fixed time at the current frequency, and then the frequency change occurs. The fixed time is the frequency pause time of the air conditioner, and the frequency of the compressor is kept unchanged during the frequency pause time. The existing air conditioner is provided with a suitable compressor frequency dwell time, and the compressor is subjected to frequency increasing or frequency reducing according to the actual working requirement and the original preset dwell time under the condition of no special intervention.
The frequency of the first compressor is the minimum value of a preset frequency interval, and the frequency in the preset frequency interval can be increased or decreased according to the preset pause time, so that the normal operation of the air conditioning unit cannot be influenced.
The first dwell time is less than a preset dwell time.
In the embodiment of the application, if the air conditioner enters the high-temperature defrosting mode, the operating frequency of the compressor is less than or equal to the minimum value of the preset frequency interval, which represents that the current compressor is in a low-frequency operating state. The air conditioner enters a high-temperature defrosting mode, which means that the air conditioner actually needs more heat to defrost, the compressor is required to perform frequency raising, and in order to improve the defrosting speed, because the compressor is at a low-frequency level, the frequency raising can be performed by setting a frequency pause time shorter than the originally set frequency pause time for the compressor, so that the frequency raising can be realized in a shorter time, more heat is provided, the defrosting speed is improved, and the heating comfort is improved.
103. If the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency increasing according to a second pause time;
the first compressor frequency is the minimum value of the preset frequency interval, the second compressor frequency is the maximum value of the preset frequency interval, and the second pause time is the compressor frequency pause time originally set by the air conditioner in the step 102 and is greater than the first pause time.
In the embodiment of the application, after the air conditioner enters the high-temperature defrosting mode, the air conditioner needs more heat to defrost on behalf of, namely, the compressor needs to be subjected to frequency raising, the running frequency of the compressor is just in the preset frequency interval, and the air conditioner can be subjected to frequency raising according to the originally set compressor frequency pause time.
104. If the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third pause time;
the third dwell time is greater than the second dwell time in step 103, and the second compressor frequency is the maximum value of the predetermined frequency interval.
In the embodiment of the application, after the air conditioner enters the high-temperature defrosting mode, the operating frequency of the compressor is already greater than or equal to the maximum value of the preset frequency interval, and the air conditioner is in a high-frequency operating state. The air conditioner needs the compressor to further raise the frequency to provide more heat, the compressor is in a high-frequency state, if the frequency is raised according to the preset frequency pause time, the compressor works to bring the heat to the air conditioning unit, enough time is not available for cooling, the heat can be accumulated more and more, and finally the unit is abnormal due to high temperature. Therefore, the air conditioner is required to be subjected to frequency rising according to the pause time longer than the preset pause time, so that the unit is cooled for enough cooling time, and the normal operation of the unit is ensured.
According to the scheme, the current compressor frequency after the air conditioner enters the high-temperature defrosting mode is detected; then, decision control is performed based on the detected frequency: if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to the first pause time; if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency raising according to a second pause time; and if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third dwell time. By controlling the pause time of the compression running frequency of the air conditioner after the air conditioner enters the high-temperature defrosting mode, the controllable frequency rising of the air conditioner compressor is ensured, and the phenomenon that the compressor is abnormal due to the fact that the frequency rising is too fast after the air conditioner enters the defrosting mode is avoided.
For convenience of understanding, an application embodiment of the air conditioner defrosting control method is provided below for explanation, and referring to fig. 2, an embodiment of the air conditioner defrosting control method in the embodiment of the present application includes:
in the embodiment of the application, a defrosting control method of an air conditioner is completely described from the time when the air conditioner enters a defrosting mode to the time when the air conditioner is judged to exit the defrosting mode. In the embodiment of the application, the air conditioner is acquiescently operated from the normal heating mode to the defrosting mode needing to be judged.
201. Detecting the outdoor environment temperature;
when the air conditioner runs to judge whether to enter a defrosting mode, the outdoor environment temperature is detected through an outdoor unit environment temperature sensing bulb arranged on an outdoor unit.
202. Comparing the outdoor environment temperature with a preset outdoor environment temperature threshold value;
the outdoor environment temperature in the embodiment of the application is the outdoor environment temperature of the air conditioner before entering the defrosting mode, the outdoor environment temperature threshold is obtained by performing multiple experiments on specific air conditioner models, and is a judgment basis for the air conditioner to enter different defrosting modes, the value range of the outdoor environment temperature is greater than or equal to 10 ℃ and less than 25 ℃, and the preferred value of the outdoor environment temperature is 15 ℃.
203. Controlling the air conditioner to enter different defrosting modes according to the comparison result;
if the outdoor environment temperature is lower than the outdoor environment temperature threshold value, the air conditioner is controlled to enter a normal defrosting mode, when the outdoor environment temperature before entering the defrosting mode is detected to be lower than 15 ℃, the air conditioner can provide enough heat for a frosted layer dissolved by the condenser fins when performing normal defrosting, and therefore the air conditioner is controlled to enter the normal defrosting mode.
If the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold, the air conditioner is controlled to enter a high-temperature defrosting mode, when the outdoor environment temperature before entering the defrosting mode is detected to be greater than or equal to 15 ℃, the normal defrosting is carried out, and sufficient heat cannot be provided for a condenser fin to dissolve a frosting layer, so that the air conditioner is controlled to enter the high-temperature defrosting mode, and sufficient heat can be provided for defrosting.
204. Comparing the outdoor environment temperature in the high-temperature defrosting mode with the outdoor environment temperature threshold value, and controlling the air conditioner operation mode according to the comparison result;
in the embodiment of the application, after the air conditioner enters the high-temperature defrosting mode, the outdoor environment temperature and the outdoor environment temperature threshold value after the air conditioner enters the high-temperature defrosting mode are continuously compared, if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold value within the preset time, the air conditioner is controlled to keep the high-temperature defrosting mode, and if the outdoor environment temperature less than the outdoor environment temperature threshold value occurs within the preset time, the air conditioner is controlled to enter the heating mode. The preset time is in the range of 8 to 15 minutes, and the preferred value of 10 minutes is selected in the embodiment. The following are exemplary: after the air conditioner enters a high-temperature defrosting mode, if the ambient temperature outside the inner chamber is greater than 15 ℃ for 10 minutes continuously, the air conditioner keeps the high-temperature defrosting mode; when the outdoor environment temperature is detected to be 14 ℃ within 10 minutes after the air conditioner enters the high-temperature defrosting mode, the air conditioner is controlled to exit the high-temperature defrosting mode and enter the heating mode, and the heating comfort is improved.
205. Detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode;
in the embodiment of the present application, the specific content of step 205 is similar to that of step 101 in embodiment 1, and is not described herein again.
206. If the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency increasing according to a first pause time;
in the embodiment of the present application, the value range of the first compressor frequency D is less than or equal to 60hz, in this embodiment, 60hz is selected, the first pause time is linearly changed along with the outdoor environment, and the first pause time is determined according to the formula Y1 ═ B (T1-C), where: y1 is the first dwell time; b is the slope of the linear equation, the value range of which is 4 to 6, and the preferred value of 5 is selected in this embodiment; t1 is the outdoor ambient temperature detected by the outdoor unit ambient temperature bulb before the air conditioner defrosting, which is 16 degrees celsius in this embodiment; c is a constant value of the linear equation and has a value range of 8 to 10, and the preferred value of 9 is selected in this embodiment.
For example, after the air conditioner enters the defrosting mode at high temperature, the running frequency of the compressor is detected to be 50hz and is smaller than the selected 60hz, so that the pause time Y1 of the current frequency is 5 (16-9) to 45.
207. If the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency increasing according to a second pause time;
in the embodiment of the present application, the range of the first compressor frequency D is less than or equal to 60hz, in this embodiment, 60hz is selected, the range of the second compressor frequency E is greater than 60 and less than or equal to 100, in this embodiment, 90hz is selected, and the second dwell time is the preset compressor frequency dwell time, which is 60 in this embodiment.
208. If the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third pause time;
in the embodiment of the present application, the value range of the second compressor frequency E is greater than 60 and less than or equal to 100, in this embodiment, 90hz is selected, the third dwell time changes with the outdoor environment, and the third dwell time is determined according to the formula Y1 ═ B (T1-C) + T2, where: y2 is the third dwell time; b is the slope of the linear equation, the value range of which is 4 to 6, and 5 is selected in this embodiment; t1 is the outdoor ambient temperature detected by the outdoor unit ambient temperature bulb before the air conditioner defrosting, which is 16 degrees celsius in this embodiment; t2 is the outdoor ambient temperature after the air conditioner enters the defrosting mode, and in this embodiment, 16 degrees celsius is selected; c is a constant value of the linear equation and has a value range of 8 to 10, and 9 is selected in this embodiment.
For example, after the air conditioner enters the defrosting mode at high temperature, the running frequency of the compressor is detected to be 100hz, which is greater than the selected 90hz, so that the pause time Y2 of the current frequency is 5 × 5 (16-9) +16 is 61.
209. Controlling the air conditioner to exit the defrosting mode according to the defrosting time and the temperature of the defrosting bulb;
after the air conditioner enters a normal defrosting mode or a high-temperature defrosting mode, the air conditioner is controlled to exit the defrosting mode according to defrosting time and defrosting bulb temperature, and if the defrosting time of the air conditioner is greater than or equal to the preset defrosting time of the air conditioner and the defrosting bulb temperature is greater than or equal to the preset defrosting bulb temperature, the air conditioner is controlled to exit the defrosting mode.
In the embodiment of the application, the value range of the preset defrosting time is 0-6 minutes, the preferred value is 3 minutes, the value range of the preset defrosting temperature sensing bulb temperature is 10-20 ℃, and the preferred value is 15 ℃. Therefore, when the defrosting time is more than or equal to 3 minutes and the temperature of the defrosting bulb is more than or equal to 15 ℃, the air conditioner is controlled to exit the defrosting mode and enter the heating mode.
According to the embodiment of the application, the outdoor environment temperature is detected, the outdoor environment temperature is compared with the preset outdoor environment temperature threshold, and the air conditioner is controlled to enter different defrosting modes according to the comparison result. Determining whether the air conditioner is in the high-temperature defrosting mode continuously according to the change condition of the outdoor environment temperature after the air conditioner enters the high-temperature defrosting mode within the preset time, detecting the current compressor frequency after the air conditioner enters the high-temperature defrosting mode, determining the frequency pause time of the air conditioner compressor by the compressor frequency pause time, and finally controlling the air conditioner to exit the defrosting mode according to the defrosting time and the defrosting bulb temperature. This scheme accessible increases the time of predetermineeing, reduces the condition that the air conditioner got into the frost-free defrosting, and the accessible is when the air conditioner mode of defrosting simultaneously, increases the compressor frequency stop point of defrosting in-process to reduce the rate of raising the frequency of compressor, avoid appearing compressor housing temperature and rise the problem that leads to the protection at the excessive speed.
Corresponding to the embodiment of the application function implementation method, the application also provides a defrosting control device of the air conditioner, electronic equipment and a corresponding embodiment.
Fig. 3 is a schematic structural diagram of a defrosting control device of an air conditioner according to an embodiment of the present application.
Referring to fig. 3, an embodiment of a defrosting control device of an air conditioner in an embodiment of the present application includes:
According to the scheme, the current compressor frequency after the air conditioner enters the high-temperature defrosting mode is detected; then, decision control is performed based on the detected frequency: if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to perform frequency raising according to the first pause time; if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to perform frequency raising according to a second pause time; and if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to perform frequency increasing according to a third dwell time. By controlling the pause time of the compression running frequency of the air conditioner after the air conditioner enters the high-temperature defrosting mode, the controllable frequency rising of the air conditioner compressor is ensured, and the phenomenon that the compressor is abnormal due to the fact that the frequency rising is too fast after the air conditioner enters the defrosting mode is avoided.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a schematic structural diagram of an electronic device shown in an embodiment of the present application.
Referring to fig. 4, an electronic device 401 includes a memory 402 and a processor 403.
The Processor 403 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 402 may include various types of storage units, such as system memory, Read Only Memory (ROM), and permanent storage. Wherein the ROM may store static data or instructions for the processor 403 or other modules of the computer. The persistent storage device may be a read-write storage device. The persistent storage may be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered off. In some embodiments, the persistent storage device employs a mass storage device (e.g., magnetic or optical disk, flash memory) as the persistent storage device. In other embodiments, the permanent storage may be a removable storage device (e.g., floppy disk, optical drive). The system memory may be a read-write memory device or a volatile read-write memory device, such as a dynamic random access memory. The system memory may store instructions and data that some or all of the processors require at runtime. Further, the memory 402 may include any combination of computer-readable storage media, including various types of semiconductor memory chips (DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), magnetic and/or optical disks, may also be employed. In some embodiments, memory 402 may include a removable storage device that is readable and/or writable, such as a Compact Disc (CD), a read-only digital versatile disc (e.g., DVD-ROM, dual layer DVD-ROM), a read-only Blu-ray disc, an ultra-density optical disc, a flash memory card (e.g., SD card, min SD card, Micro-SD card, etc.), a magnetic floppy disk, or the like. Computer-readable storage media do not contain carrier waves or transitory electronic signals transmitted by wireless or wired means.
The memory 402 has stored thereon executable code that, when processed by the processor 403, may cause the processor 403 to perform some or all of the methods described above.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Furthermore, the method according to the present application may also be implemented as a computer program or computer program product comprising computer program code instructions for performing some or all of the steps of the above-described method of the present application.
Alternatively, the present application may also be embodied as a non-transitory machine-readable storage medium (or computer-readable storage medium, or machine-readable storage medium) having stored thereon executable code (or a computer program, or computer instruction code) which, when executed by a processor of an electronic device (or electronic device, server, etc.), causes the processor to perform some or all of the steps of the above-described method according to the present application.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the applications disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (7)
1. A defrosting control method of an air conditioner is characterized by comprising the following steps:
detecting the current compressor frequency after the air conditioner enters a high-temperature defrosting mode;
if the current compressor frequency is less than or equal to the first compressor frequency, controlling the compressor to operate at the current compressor frequency for a first dwell time and then perform frequency boosting;
if the current compressor frequency is greater than the first compressor frequency and less than the second compressor frequency, controlling the compressor to operate at the current compressor frequency for a second dwell time and then increasing the frequency;
if the current compressor frequency is greater than or equal to the second compressor frequency, controlling the compressor to operate at the current compressor frequency for a third dwell time and then performing frequency boosting;
the compressor runs at the same frequency in the pause time, and the pause time is a first pause time, a second pause time and a third pause time from small to large;
detecting the outdoor environment temperature; comparing the outdoor environment temperature with a preset outdoor environment temperature threshold value; if the outdoor environment temperature is smaller than the outdoor environment temperature threshold value, controlling the air conditioner to enter a normal defrosting mode;
before controlling the compressor to perform frequency raising according to the third dwell time, the method further comprises the following steps:
determining the third dwell time according to the following formula two;
the formula II is as follows: y2 ═ B (T1-C) + T2
In the formula: y2 is the third dwell time, B is the slope of the linear equation, T1 is the outdoor ambient temperature before the air conditioner enters the defrosting mode, T2 is the outdoor ambient temperature after the air conditioner enters the defrosting mode, and C is the constant value of the linear equation.
2. The defrosting control method of an air conditioner according to claim 1, further comprising, after comparing the outdoor ambient temperature with a preset outdoor ambient temperature threshold:
and if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold value, controlling the air conditioner to enter a high-temperature defrosting mode.
3. The defrosting control method of an air conditioner according to claim 2, further comprising, after the air conditioner is controlled to enter the high temperature defrosting mode:
continuing to compare the outdoor ambient temperature to the outdoor ambient temperature threshold;
and if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold within the preset time, controlling the air conditioner to keep a high-temperature defrosting mode.
4. The defrosting control method of an air conditioner according to claim 3, further comprising, after the continuously comparing the outdoor ambient temperature with the outdoor ambient temperature threshold value:
and if the outdoor environment temperature smaller than the outdoor environment temperature threshold value exists within the preset time, controlling the air conditioner to enter a heating mode.
5. The defrosting control method of an air conditioner according to claim 1, wherein before controlling the compressor to perform the frequency up-conversion according to the first pause time, the method further comprises:
determining the first dwell time according to the following formula one;
the formula I is as follows: y1 ═ B (T1-C)
In the formula: y1 is the first dwell time, B is the slope of the linear equation, T1 is the outdoor ambient temperature before the air conditioner enters into defrosting, and C is a constant value of the linear equation.
6. An electronic device, comprising:
a processor; and
a memory having executable code stored thereon, which when executed by the processor, causes the processor to perform the method of any one of claims 1-5.
7. A non-transitory machine-readable storage medium having stored thereon executable code, which when executed by a processor of an electronic device, causes the processor to perform the method of any one of claims 1-5.
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| CN202011529818.4A CN112696792B (en) | 2020-12-22 | 2020-12-22 | Defrosting control method and device for air conditioner, electronic equipment and storage medium |
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| CN202011529818.4A CN112696792B (en) | 2020-12-22 | 2020-12-22 | Defrosting control method and device for air conditioner, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010210223A (en) * | 2009-03-12 | 2010-09-24 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| CN102967022A (en) * | 2012-10-23 | 2013-03-13 | 宁波奥克斯电气有限公司 | Control method for starting variable-frequency compressor of multi-connected air conditioning unit |
| CN105202689B (en) * | 2014-06-27 | 2018-04-17 | 青岛海尔空调器有限总公司 | The method and system of compressor target frequency control accuracy after raising air-conditioner defrosting |
| CN106052229A (en) * | 2016-05-30 | 2016-10-26 | 珠海格力电器股份有限公司 | Defrosting control method and system of air conditioner |
| CN106958926B (en) * | 2017-05-10 | 2020-05-29 | 青岛海尔空调器有限总公司 | Air conditioner and defrosting control method thereof |
| CN107560259B (en) * | 2017-09-01 | 2020-03-03 | 广东美的暖通设备有限公司 | Multi-split system and low-temperature starting control method and device of multi-split system |
| CN107576016B (en) * | 2017-09-22 | 2020-04-24 | 青岛海尔空调器有限总公司 | Control method and system of air conditioner |
| CN111023420B (en) * | 2019-12-27 | 2021-08-20 | 宁波奥克斯电气股份有限公司 | Compressor quick start control method and device, air conditioner and storage medium |
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