CN113091267B - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN113091267B CN113091267B CN202110410140.6A CN202110410140A CN113091267B CN 113091267 B CN113091267 B CN 113091267B CN 202110410140 A CN202110410140 A CN 202110410140A CN 113091267 B CN113091267 B CN 113091267B
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a control method of an air conditioner, which comprises the steps of detecting whether the air conditioner is in a heating operation mode or a cooling operation mode; in the heating operation mode, judging whether the current rotating speed of the indoor fan is in a preset heating low-wind interval or not, if not, controlling the compressor to operate at the maximum heating frequency, and if so, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is reduced along with the increase of the indoor environment temperature; and during the refrigeration operation mode, judging whether the current rotating speed of the indoor fan is in a preset refrigeration low-wind interval, if not, controlling the compressor to operate at the maximum refrigeration frequency, and if so, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is increased along with the increase of the indoor environment temperature. The control method of the air conditioner provided by the embodiment of the invention not only can rapidly refrigerate and heat, but also has the advantages of low energy consumption, low noise, long service life and the like.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner.
Background
The related art air conditioner generally includes a compressor, an indoor fan, and an evaporator. When the air conditioner is in a heating operation mode, problems that indoor sound is high in pitch, noise of an outdoor unit is transmitted into a room, and when the compressor operates at a low rotating speed, a load is increased to generate extra noise and the like may occur.
When the air conditioner is in a refrigeration running mode, the phenomenon of liquid impact on the compressor is possibly caused due to insufficient evaporation of the evaporator, when the indoor fan runs at a low wind speed, the compressor can also avoid the phenomenon in a mode of reducing the maximum running frequency of the compressor, but the refrigeration capacity of the air conditioner is limited, rapid refrigeration cannot be realized, and therefore effective dehumidification is difficult to realize, and user experience is influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a control method for an air conditioner, which can not only rapidly cool and heat, but also has the advantages of low energy consumption, low noise, and long service life.
In order to achieve the above object, a control method of an air conditioner according to an embodiment of the present invention includes: detecting whether the air conditioner is in a heating operation mode or a cooling operation mode; if the air conditioner is in a heating operation mode, judging whether the current rotating speed of the indoor fan is in a preset heating high-wind interval or a preset heating low-wind interval, if the current rotating speed of the indoor fan is in the preset heating high-wind interval, controlling the compressor to operate at the maximum heating frequency, and if the current rotating speed of the indoor fan is in the preset heating low-wind interval, controlling the actual operating frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operating frequency of the compressor is reduced along with the increase of the indoor environment temperature; if the air conditioner is in a refrigeration running mode, judging whether the current rotating speed of the indoor fan is in a preset refrigeration high-wind interval or a preset refrigeration low-wind interval, if the current rotating speed of the indoor fan is in the preset refrigeration high-wind interval, controlling the compressor to run at the maximum refrigeration frequency, and if the current rotating speed of the indoor fan is in the preset refrigeration low-wind interval, controlling the actual running frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual running frequency of the compressor is increased along with the increase of the indoor environment temperature.
The control method of the air conditioner provided by the embodiment of the invention not only can quickly refrigerate and heat, but also has the advantages of low energy consumption, low noise, long service life and the like.
According to some specific embodiments of the present invention, the preset heating low wind interval includes a plurality of sub heating low wind intervals, each of the sub heating low wind intervals corresponds to a heating frequency control rule, and the variation range of the actual operating frequency of the compressor by the plurality of heating frequency control rules increases as the sub heating low wind intervals decrease; the preset refrigeration low-wind interval comprises a plurality of sub refrigeration low-wind intervals, each sub refrigeration low-wind interval corresponds to one refrigeration frequency control rule, and the variation amplitude of the actual operation frequency of the compressor by the plurality of refrigeration frequency control rules is increased along with the reduction of the sub refrigeration low-wind intervals.
According to some embodiments of the present invention, the boundary between the preset heating high wind interval and the preset heating low wind interval and the boundaries between the plurality of sub-heating low wind intervals are determined by a product of a maximum rotating speed of an indoor fan and different systems; the boundary between the preset refrigeration high-wind interval and the preset refrigeration low-wind interval and the boundaries between the multiple sub-refrigeration low-wind intervals are determined by the product of the highest rotating speed of the indoor fan and different systems. According to some specific embodiments of the present invention, the current rotation speed of the indoor fan is X, the maximum rotation speed of the indoor fan is H, the preset heating low-wind interval includes two sub-heating low-wind intervals, and the preset cooling low-wind interval includes two sub-cooling low-wind intervals; in the heating operation mode, if X is more than H0.6, the air conditioner is positioned in the preset heating high-wind interval, if H is more than 0.6 and more than X is more than H0.3, the air conditioner is positioned in one sub-heating low-wind interval, and if H is more than 0.3 and more than X, the air conditioner is positioned in the other sub-heating low-wind interval; in the refrigerating operation mode, if X is more than H0.6, the air conditioner is in the preset refrigerating high-wind interval, if H is more than 0.6 and more than X is more than H0.3, the air conditioner is in one sub-refrigerating low-wind interval, and if H is more than 0.3 and more than X, the air conditioner is in the other sub-refrigerating low-wind interval.
According to some embodiments of the present invention, the heating frequency control rule corresponding to each of the sub-heating low wind zones includes: setting a plurality of heating indoor temperature intervals, wherein the actual operation frequency of the compressor in the heating indoor temperature intervals is reduced along with the increase of the heating indoor temperature intervals; the refrigeration frequency control rule corresponding to each sub-refrigeration low-wind area comprises the following steps: and setting a plurality of refrigerating room temperature intervals, wherein the actual operating frequency of the compressor in the refrigerating room temperature intervals is increased along with the increase of the refrigerating room temperature intervals.
According to some embodiments of the present invention, each heating indoor temperature interval corresponds to a heating frequency correction value, a plurality of heating frequency correction values decrease with the increase of the heating indoor temperature interval, and the actual operating frequency of the compressor is the product of the heating frequency correction value corresponding to the heating indoor temperature interval where the indoor environment temperature is located and the maximum heating frequency; each refrigerating indoor temperature interval corresponds to a refrigerating frequency correction value, the plurality of refrigerating frequency correction values are increased along with the increase of the refrigerating indoor temperature interval, and the actual operation frequency of the compressor is the product of the refrigerating frequency correction value corresponding to the refrigerating indoor temperature interval where the indoor environment temperature is located and the maximum refrigerating frequency.
According to some embodiments of the present invention, in each of the sub-heating low-wind sections, the heating frequency correction value corresponding to the smallest heating indoor temperature section is 1; and in each sub-refrigeration low-wind interval, the refrigeration frequency correction value corresponding to the largest refrigeration indoor temperature interval is 1.
According to some specific embodiments of the present invention, the preset heating low wind interval includes two of the sub-heating low wind intervals; five heating indoor temperature intervals are arranged in one sub-heating low-wind interval, and heating frequency correction values corresponding to the five heating indoor temperature intervals are respectively 1, 0.9, 0.8, 0.7 and 0.6; four heating indoor temperature intervals are arranged in the other heating low-wind sub-interval, and heating frequency correction values corresponding to the four heating indoor temperature intervals are 1, 0.95, 0.85 and 0.8 respectively; wherein the one sub-heating low wind interval is smaller than the other sub-heating low wind interval.
According to some embodiments of the invention, the preset refrigeration low-wind interval comprises two sub-refrigeration low-wind intervals; four refrigerating indoor temperature intervals are arranged in one sub-refrigerating low-wind area, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are respectively 0.7, 0.8, 0.9 and 1; four refrigerating indoor temperature intervals are arranged in the other sub-refrigerating low-wind interval, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are respectively 0.8, 0.85, 0.95 and 1; wherein, one sub-refrigeration low-wind interval is smaller than the other sub-refrigeration low-wind interval. According to some embodiments of the present invention, the maximum heating frequency is calculated according to an outdoor ambient temperature in a heating operation mode; the maximum refrigeration frequency is calculated according to the outdoor environment temperature in the refrigeration operation mode.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a flowchart of a heating operation mode of a control method of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a flowchart of a cooling operation mode of a control method of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more, and "several" means one or more.
A control method of an air conditioner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a control method of an air conditioner according to an embodiment of the present invention includes:
detecting whether the air conditioner is in a heating operation mode or a cooling operation mode;
if the air conditioner is in a heating operation mode, judging whether the current rotating speed of the indoor fan is in a preset heating high-wind interval or a preset heating low-wind interval, if the current rotating speed of the indoor fan is in the preset heating high-wind interval, controlling the compressor to operate at the maximum heating frequency A, and if the current rotating speed of the indoor fan is in the preset heating low-wind interval, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is reduced along with the increase of the indoor environment temperature;
if the air conditioner is in a refrigeration operation mode, judging whether the current rotating speed of the indoor fan is in a preset refrigeration high-wind interval or a preset refrigeration low-wind interval, if the current rotating speed of the indoor fan is in the preset refrigeration high-wind interval, controlling the compressor to operate at the maximum refrigeration frequency B, and if the current rotating speed of the indoor fan is in the preset refrigeration low-wind interval, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is increased along with the increase of the indoor environment temperature.
The indoor fan rotating speed in the preset heating high-wind interval is greater than that in the preset heating low-wind interval, and the indoor fan rotating speed in the preset cooling high-wind interval is greater than that in the preset cooling low-wind interval.
According to the control method of the air conditioner, the operation mode of the air conditioner is judged firstly, and the operation mode of the air conditioner needs to be judged to enable the air conditioner to select a proper control mode because the air conditioner is different in response to different indoor environment temperatures when operating in different modes.
And then judging whether the current rotating speed of the indoor fan is in a preset high-wind interval (the preset high-wind interval is a preset heating high-wind interval when the air conditioner operates in a heating mode, and the preset high-wind interval is a preset refrigerating high-wind interval when the air conditioner operates in a refrigerating mode) or in a preset low-wind interval (the preset low-wind interval is a preset heating low-wind interval when the air conditioner operates in a heating mode, and the preset low-wind interval is a preset refrigerating low-wind interval when the air conditioner operates in a refrigerating mode), and when the current rotating speed of the indoor fan is in the preset high-wind interval, the compressor operates at the maximum frequency (the maximum frequency when the air conditioner operates in the heating mode is a maximum heating frequency A, and the maximum frequency when the air conditioner operates in the refrigerating mode is a maximum refrigerating frequency B).
When the user controls the indoor fan to run at a high wind speed, the user has more urgent refrigeration requirements or heating requirements, the current rotating speed of the indoor fan is associated with the actual running frequency of the compressor, the compressor is controlled to run at the maximum running frequency of the compressor, and then indoor rapid refrigeration or heating is carried out to meet the user requirements.
When the current rotating speed of the indoor fan is in a preset low-wind interval, the actual operating frequency of the compressor is related to the indoor environment temperature, because the refrigeration demand or the heating demand of a user is slow, the actual operating frequency of the compressor is adjusted by combining the indoor environment temperature and the current rotating speed of the indoor fan, the actual operating frequency of the compressor can meet the adjusting demand of the user on the indoor environment temperature, meanwhile, the actual operating frequency of the compressor and the current wind speed of the indoor fan are enabled, the indoor environment temperature is more related, the actual operating frequency of the compressor is prevented from being too high, the energy consumption of the compressor is saved, and the noise is reduced.
Specifically, when the air conditioner is in the operation mode of heating, and the current rotational speed of indoor fan is in when predetermineeing the low wind interval of heating, the actual operating frequency of compressor increases along with indoor ambient temperature's increase, it can be understood that, when indoor ambient temperature is higher, then the actual operating frequency of compressor is lower can reach the purpose that improves indoor ambient temperature to satisfy the user demand of heating, otherwise, when indoor ambient temperature is lower, then the actual operating frequency of compressor is higher just can satisfy the user demand of heating.
When the air conditioner is in a refrigeration running mode, and the current rotating speed of the indoor fan is in a preset refrigeration low-wind interval, the actual running frequency of the compressor is reduced along with the increase of the indoor environment temperature, and it can be understood that when the indoor environment temperature is high, the actual running frequency of the compressor needs to be high to achieve the purpose of reducing the indoor environment temperature, so that the refrigeration requirement of a user is met, otherwise, when the indoor environment temperature is low, the actual running frequency of the compressor is low to meet the refrigeration requirement of the user.
So, when the current wind speed of indoor fan is lower, change the actual operating frequency of compressor along with current indoor ambient temperature's change, can further reduce the energy consumption of compressor, make compressor operating frequency satisfy refrigeration demand and heating demand simultaneously to reach the effect of quick refrigeration and heating fast. And, through the actual operating frequency of reasonable control compressor, be favorable to reducing the running noise, extension compressor life.
Therefore, the control method of the air conditioner provided by the embodiment of the invention not only can quickly refrigerate and heat, but also has the advantages of low energy consumption, low noise, long service life and the like.
According to some embodiments of the present invention, as shown in fig. 2 and 3, the preset heating low wind zone includes a plurality of sub-heating low wind zones, each sub-heating low wind zone corresponds to a heating frequency control rule, so that different sub-heating low wind zones have heating frequency control rules suitable for their own temperature ranges, so that the actual operating frequency of the compressor better corresponds to the current indoor environment temperature, and the accuracy of controlling the actual operating frequency of the compressor can be improved, so as to further reduce energy consumption and reduce noise while heating quickly.
The preset refrigeration low-wind interval comprises a plurality of sub refrigeration low-wind intervals, and a plurality of refrigeration frequency control rules are in one-to-one correspondence with the plurality of refrigeration low-wind intervals, so that the refrigeration frequency control rules suitable for the temperature range of the sub refrigeration low-wind intervals are arranged among different sub refrigeration low-wind intervals, the actual operation frequency of the compressor is better corresponding to the current indoor environment temperature, the accuracy of the actual operation frequency control of the compressor can be improved, and the energy consumption and the noise are further reduced while the compressor is rapidly heated.
The variation width of the plurality of heating frequency control rules for the actual operating frequency of the compressor increases as the sub-heating low-wind zone decreases, and the variation width of the plurality of cooling frequency control rules for the actual operating frequency of the compressor increases as the sub-cooling low-wind zone decreases. The reduction of the sub-refrigeration low-wind interval means that the rotating speeds of the indoor fans which are used as two end points of the sub-refrigeration low-wind interval are reduced; the reduction of the sub-heating low wind section means that the rotation speeds of the indoor fans at both end points of the sub-heating low wind section are reduced.
Understandably, when the rotating speed of the indoor fan becomes low, the influence of the air conditioner on the indoor environment temperature becomes low. Therefore, along with the reduction of the current interval of the rotating speed of the indoor fan, the actual operating frequency of the compressor should be increased along with the change range of the rotating speed of the indoor fan so as to improve the compression capacity of the compressor on the refrigerant, thereby improving the heating capacity or the refrigerating capacity of the indoor heat exchanger, and ensuring that the air conditioner can effectively regulate the indoor environment temperature under the condition that the rotating speed of the indoor fan is small.
Specifically, the boundary between the preset heating high-wind interval and the preset heating low-wind interval and the boundary between the plurality of sub-heating low-wind intervals are determined by the product of the maximum rotating speed of the indoor fan and different systems. The boundary of the preset refrigeration high-wind interval and the preset refrigeration low-wind interval and the boundaries of the plurality of sub-refrigeration low-wind intervals are determined by the product of the highest rotating speed of the indoor fan and different systems.
For example, the maximum speed of the indoor fan may be a fixed value when certain conditions (e.g., outdoor ambient temperature) are determined, different systems may be different values or different calculation formulas, the boundary of the adjacent heating section is defined by a plurality of different products in the heating mode, and the boundary of the adjacent cooling section is defined by a plurality of different products in the cooling mode.
In this way, in a preset high-wind interval (the air conditioner is in a heating mode, the preset high-wind interval is a preset heating high-wind interval, the air conditioner is in a cooling mode, the preset high-wind interval is a preset cooling high-wind interval) and a plurality of preset sub-low-wind intervals (the air conditioner is in a heating mode, the preset sub-low-wind interval is a preset sub-heating low-wind interval, and the air conditioner is in a cooling mode, the preset sub-low-wind interval is a preset sub-cooling low-wind interval), when different systems correspond to different numerical values, the current rotating speed of the indoor fan and the current indoor environment temperature can be changed linearly, so that the control difficulty of the air conditioner is reduced; when different systems correspond to different numerical values, the current rotating speed of the indoor fan and the current indoor environment temperature can be in curve change, so that the accuracy of controlling the indoor environment temperature is improved, and the living comfort of a user is improved.
Of course, in some embodiments, some of the different systems may be numerical values and another of the different systems may be computational formulas.
Furthermore, the current rotating speed of the indoor fan is X, the highest rotating speed of the indoor fan is H, the preset heating low-wind interval comprises two sub heating low-wind intervals, and the preset refrigerating low-wind interval comprises two sub refrigerating low-wind intervals. In the heating operation mode, if X is more than H0.6, the heating operation mode is in a preset heating high-wind interval, if H0.6 is more than or equal to X is more than H0.3, the heating operation mode is in one sub-heating low-wind interval, and if H0.3 is more than or equal to X, the heating operation mode is in the other sub-heating low-wind interval. In the refrigeration operation mode, if X is more than H0.6, the air conditioner is in a preset refrigeration high-air interval, if H is more than 0.6 and more than X is more than H0.3, the air conditioner is in a sub-refrigeration low-air interval, and if H is more than 0.3 and more than X, the air conditioner is in another sub-refrigeration low-air interval.
Wherein, 0.6 and 0.3 are the corresponding numerical values of the system. Thus, in both the heating mode and the cooling mode, sixty percent of the maximum rotation speed of the indoor fan is used as a boundary point between a preset high-wind interval (the preset high-wind interval of the air conditioner in the heating mode is a preset heating high-wind interval, the preset high-wind interval of the air conditioner in the cooling mode is a preset cooling high-wind interval) and a preset low-wind interval (the preset low-wind interval of the air conditioner in the heating mode is a preset heating low-wind interval, and the preset low-wind interval of the air conditioner in the cooling mode is a preset cooling low-wind interval), the divided boundary is more definite, it can be appreciated that, when used to adjust the current wind speed of the indoor fan to sixty percent of the maximum wind speed of the indoor fan, the user has had the strong demand of heating or refrigeration, and the influence that noise etc. had reduced to the user this moment, and indoor fan can satisfy indoor heat exchanger's heat transfer demand, even the compressor can not influence its life with the operation of maximum power yet.
And because the division range of the preset low wind interval is larger, and the running frequency of the compressor is more accurately controlled, the preset low wind interval is divided into a plurality of preset sub-low wind intervals, and through the dividing point which is the thirty percent of the highest wind speed of the indoor fan and is the preset sub-low wind interval, the two preset sub-low wind intervals are half of the whole preset low wind interval, so that the number of the preset sub-low wind intervals is small and the control is accurate.
According to some embodiments of the present invention, as shown in fig. 2 and 3, the heating frequency control rule corresponding to each sub-heating low-wind zone includes setting a plurality of heating indoor temperature zones, and the actual operating frequency of the compressor in the heating indoor temperature zones decreases as the heating indoor temperature zones increase.
It can be understood that the rotating speed range of the indoor fan in each sub-heating low-wind interval is fixed, the rotating speed change of the indoor fan in each sub-heating low-wind interval has almost no influence or little influence on the actual operating frequency of the compressor, at the moment, the indoor environment temperature in the same sub-heating low-wind interval has larger influence on the actual operating frequency of the compressor when the indoor temperature ranges are changed in different heating room temperature intervals, namely, the higher the temperature range corresponding to the heating indoor temperature interval is, the lower the heating demand of the air conditioner is, therefore, along with the increase of the heating indoor temperature interval, the actual operating frequency of the compressor is reduced, the heating demand can be met, meanwhile, the energy consumption of the compressor can be reduced, the noise is reduced, and the service life of the compressor is prolonged.
The refrigeration frequency control rule corresponding to each sub-refrigeration low-wind area comprises a plurality of refrigeration indoor temperature areas, and the actual operation frequency of the compressor in the refrigeration indoor temperature areas is increased along with the increase of the refrigeration indoor temperature areas.
It can be understood that the rotating speed range of the indoor fan in each sub-refrigeration low-wind interval is fixed, the rotating speed change of the indoor fan in each sub-refrigeration low-wind interval has almost no influence or extremely small influence on the actual operating frequency of the compressor, at the moment, the indoor environment temperature in the same sub-refrigeration low-wind interval changes in different refrigeration indoor temperature intervals, the influence on the actual operating frequency of the compressor is large, namely, the temperature range corresponding to the refrigeration indoor temperature interval is high, the refrigeration requirement of the air conditioner is high, therefore, along with the reduction of the refrigeration indoor temperature interval, the actual operating frequency of the compressor is reduced, the refrigeration requirement can be met, meanwhile, the energy consumption of the compressor can be reduced, the noise is reduced, and the service life of the compressor is prolonged.
Furthermore, each heating indoor temperature interval corresponds to a heating frequency correction value, the heating frequency correction values are reduced along with the increase of the heating indoor temperature interval, and the actual operation frequency of the compressor is the product of the heating frequency correction value corresponding to the heating indoor temperature interval in which the indoor environment temperature is located and the maximum heating frequency A.
In other words, when the boundary value at the two ends of the heating indoor temperature interval is larger, the indoor environment temperature in the interval is higher, the heating demand of the user on the air conditioner is lower, the maximum heating frequency a is a fixed value when certain conditions (such as outdoor environment temperature) are determined, the smaller the heating frequency correction value is, the smaller the product of the heating frequency correction value corresponding to the heating indoor temperature interval and the maximum heating frequency a is, that is, the lower the actual operation frequency of the compressor is.
Therefore, the actual operation frequency of the compressor can be matched with the indoor environment temperature, the heating is realized quickly, the heating requirement of a user is met, the generation of redundant energy consumption is avoided, and the cost is further saved.
And each refrigerating indoor temperature interval corresponds to a refrigerating frequency correction value, the plurality of refrigerating frequency correction values are increased along with the increase of the refrigerating indoor temperature interval, and the actual operating frequency of the compressor is the product of the refrigerating frequency correction value corresponding to the refrigerating indoor temperature interval in which the indoor environment temperature is located and the maximum refrigerating frequency B.
In other words, when the boundary values at the two ends of the cooling indoor temperature interval are larger, that is, the indoor environment temperature is higher, the heating demand of the user on the air conditioner is higher, the maximum cooling frequency B is a fixed value when certain conditions (for example, the outdoor environment temperature) are determined, the larger the cooling frequency correction value is, the larger the product of the cooling frequency correction value corresponding to the cooling indoor temperature interval and the maximum heating frequency a is, that is, the higher the actual operation frequency of the compressor is.
Therefore, the actual operation frequency of the compressor can be matched with the indoor environment temperature, rapid refrigeration is realized, the refrigeration requirement of a user is met, meanwhile, the compressor is prevented from generating redundant energy consumption, and the cost is further saved.
Optionally, in each sub-heating low-wind interval, the heating frequency correction value corresponding to the minimum heating indoor temperature interval is 1. In each sub-refrigeration low-wind interval, the refrigeration frequency correction value corresponding to the maximum refrigeration indoor temperature interval is 1.
Specifically, the heating frequency correction value is 1, and the product of the heating frequency correction value and the maximum heating frequency a is still the maximum heating frequency a, that is, when the temperature of the heating indoor temperature zone where the current indoor environment temperature is located is the lowest, at this time, the user needs to quickly heat, the actual operation frequency of the compressor does not need to be corrected, and the actual operation frequency of the compressor is operated at the maximum heating frequency a of the compressor, so that quick heating is realized and the heating requirement of the user is met.
Similarly, the refrigeration frequency correction value is 1, and the product of the refrigeration frequency correction value and the maximum refrigeration frequency B is still the maximum refrigeration frequency B, that is, when the temperature of the refrigeration room temperature interval where the current indoor environment temperature is located is the highest, the user needs to quickly heat at this moment, the actual operation frequency of the compressor does not need to be corrected, and the actual operation frequency of the compressor runs at the maximum refrigeration frequency B of the compressor, so that quick refrigeration is realized and the refrigeration requirement of the user is met.
As shown in fig. 2, the preset heating low-wind interval includes two sub-heating low-wind intervals, one sub-heating low-wind interval is provided with five heating indoor temperature intervals, and heating frequency correction values corresponding to the five heating indoor temperature intervals are respectively 1, 0.9, 0.8, 0.7 and 0.6, and the other sub-heating low-wind interval is provided with four heating indoor temperature intervals, and heating frequency correction values corresponding to the four heating indoor temperature intervals are respectively 1, 0.95, 0.85 and 0.8. Wherein, one sub-heating low wind interval is smaller than the other sub-heating low wind interval.
Therefore, the actual running frequency of the compressor is more accurately adjusted, the running reliability and the use comfort of the air conditioner are effectively improved, and the energy consumption can be greatly reduced.
The following illustrates the adjustment of the actual operation frequency of the compressor when the air conditioner operates in the heating mode with reference to fig. 2, where T is the current indoor ambient temperature, and T1, T2, T3 and T4 are sequentially increased temperature values.
Firstly, judging the relation between the current wind speed X of the indoor fan and the maximum wind speed H of the indoor fan:
if the wind speed X of the indoor fan is larger than H multiplied by 0.6, the actual running frequency of the compressor is the maximum running frequency A of the compressor.
If the wind speed X of the indoor fan is less than or equal to H × 0.3 (one of the two sub-heating low wind intervals), the indoor ambient temperature T needs to be obtained, where the five heating indoor temperature intervals are (∞, T1], (T1, T2], (T2, T3], (T3, T4], and (T4, + ∞):
when T is less than or equal to T1, the actual operating frequency of the compressor is the maximum operating frequency A of the compressor;
when T1 is less than T and T is less than or equal to T2, the actual operating frequency of the compressor is 0.9 a;
when T2 is less than T and T is less than or equal to T3, the actual operating frequency of the compressor is 0.8 a;
when T3 is less than T and T is less than or equal to T4, the actual operating frequency of the compressor is 0.7 a;
when T is greater than or equal to T4, the actual compressor operating frequency is 0.6 a.
If the wind speed H × 0.3 < X ≦ H × 0.6 (the other of the two sub-heating low wind intervals) of the indoor fan, the indoor ambient temperature T needs to be obtained, where the four heating indoor temperature intervals are (— ∞, T1], (T1, T2], (T2, T3], (T3, + ∞):
when T is less than or equal to T1, the actual operating frequency of the compressor is A;
when T1 is less than T and T is less than or equal to T2, the actual operating frequency of the compressor is 0.95 aa;
when T2 is less than T and T is less than or equal to T3, the actual operating frequency of the compressor is 0.85 a;
when T is greater than or equal to T3, the actual compressor operating frequency is 0.8 a.
So, the air conditioner can carry out more accurate regulation to compressor actual operating frequency according to indoor ambient temperature, and simultaneously in the lower sub-low wind district that heats of indoor set rotational speed, the air conditioner is great to compressor actual operating frequency's correction range, makes compressor actual operating frequency and indoor fan rotational speed and indoor ambient temperature match better, further reaches the effect of saving energy consumption and heating fast.
As shown in fig. 3, the preset refrigerating low-wind interval includes two sub-refrigerating low-wind intervals, one sub-refrigerating low-wind interval is provided with four refrigerating indoor temperature intervals, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are 0.7, 0.8, 0.9, and 1, and the other sub-refrigerating low-wind interval is provided with four refrigerating indoor temperature intervals, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are 0.8, 0.85, 0.95, and 1, respectively. Wherein, one sub-refrigeration low-wind interval is smaller than the other sub-refrigeration low-wind interval.
Therefore, the actual running frequency of the compressor is more accurately adjusted, the running reliability and the use comfort of the air conditioner are effectively improved, and the energy consumption can be greatly reduced.
The following illustrates the adjustment of the actual operating frequency of the compressor when the air conditioner operates in the heating mode with reference to fig. 3, where t is the current indoor ambient temperature, and t1, t2, t3 and t4 are sequentially increased temperature values.
Firstly, judging the relation between the current wind speed X of the indoor fan and the maximum wind speed H of the indoor fan:
if the wind speed X of the indoor fan is larger than H multiplied by 0.6, the actual running frequency of the compressor is the maximum running frequency B of the compressor.
If the wind speed X of the indoor fan is less than or equal to H × 0.3 (one of the two sub-cooling low wind intervals), the indoor ambient temperature t needs to be obtained, and the four cooling indoor temperature intervals are (— infinity, t1], (t1, t2], (t2, t 3) and (t3, + ∞):
when t is less than or equal to t1, the actual operating frequency of the compressor is 0.7 × B;
when t1 is less than t and t is less than or equal to t2, the actual operating frequency of the compressor is 0.8 × B;
when t2 is less than t and t is less than or equal to t3, the actual operating frequency of the compressor is 0.9 × B;
when t is greater than or equal to t3, the actual compressor operating frequency is B.
If the wind speed H × 0.3 < X ≦ H × 0.6 (the other of the two sub-cooling low wind intervals) of the indoor fan, the indoor ambient temperature t needs to be obtained, where the four cooling indoor temperature intervals are (— ∞, t1], (t1, t2], (t2, t3] and (t3, + ∞):
when t is less than or equal to t1, the actual operating frequency of the compressor is 0.8 × B;
when t1 is less than t and t is less than or equal to t2, the actual operating frequency of the compressor is 0.85 × B;
when t2 is less than t and t is less than or equal to t3, the actual operating frequency of the compressor is 0.95 × B;
when t is greater than or equal to t3, the actual operating frequency of the compressor is B.
So, the air conditioner can carry out more accurate regulation to compressor actual operating frequency according to indoor ambient temperature, and simultaneously in the lower sub-heating low wind district of indoor set rotational speed, the air conditioner is great to compressor actual operating frequency's correction range, makes compressor actual operating frequency and indoor fan rotational speed and indoor ambient temperature match better, further reaches energy saving and quick refrigerated effect.
According to some embodiments of the present invention, as shown in fig. 2 and 3, the maximum heating frequency a is calculated based on the outdoor ambient temperature of the heating operation mode, and the maximum cooling frequency B is calculated based on the outdoor ambient temperature of the cooling operation mode.
The maximum heating frequency a refers to the highest operating frequency of the compressor when the air conditioner is in the heating operation mode. The maximum cooling frequency B refers to the highest operating frequency of the compressor when the air conditioner is in the cooling operation mode.
When the air conditioner is in a heating mode, the outdoor environment temperature is low, the outdoor unit of the air conditioner is in a refrigerating state, and if the maximum operation frequency of the compressor exceeds the allowable range of the current outdoor temperature, the outdoor unit of the air conditioner is easy to frost too much to cause damage or stop operation; when the air conditioner is in a cooling mode, the outdoor environment temperature is high, the outdoor unit of the air conditioner is in a heating state, and if the maximum operation frequency of the compressor exceeds the allowable range of the current outdoor environment temperature, the load of the compressor is too large, so that the conditions of stopping operation or damage and the like are easy to occur. Therefore, the maximum heating frequency A and the maximum refrigerating frequency B are determined according to the outdoor environment temperature, so that the current running frequency of the compressor can be avoided being overlarge, the refrigerating efficiency and the heating efficiency of the air conditioner are guaranteed on one hand, the air conditioner is not easy to damage on the other hand, and the service life of the air conditioner is prolonged.
Other configurations and operations of the air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
The air conditioner in the present application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the ambient environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A method of controlling an air conditioner, comprising:
detecting whether the air conditioner is in a heating operation mode or a cooling operation mode;
if the air conditioner is in a heating operation mode, judging whether the current rotating speed of the indoor fan is in a preset heating high-wind interval or a preset heating low-wind interval, if the current rotating speed of the indoor fan is in the preset heating high-wind interval, controlling the compressor to operate at the maximum heating frequency, and if the current rotating speed of the indoor fan is in the preset heating low-wind interval, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is reduced along with the increase of the indoor environment temperature;
if the air conditioner is in a refrigeration operation mode, judging whether the current rotating speed of the indoor fan is in a preset refrigeration high-wind interval or a preset refrigeration low-wind interval, if the current rotating speed of the indoor fan is in the preset refrigeration high-wind interval, controlling the compressor to operate at the maximum refrigeration frequency, and if the current rotating speed of the indoor fan is in the preset refrigeration low-wind interval, controlling the actual operation frequency of the compressor according to the indoor environment temperature and the current rotating speed of the indoor fan, so that the actual operation frequency of the compressor is increased along with the increase of the indoor environment temperature;
the preset heating low-wind interval comprises a plurality of sub heating low-wind intervals, each sub heating low-wind interval corresponds to one heating frequency control rule, and the change amplitude of the actual operation frequency of the compressor by the plurality of heating frequency control rules is increased along with the reduction of the sub heating low-wind intervals;
the preset refrigeration low-wind interval comprises a plurality of sub refrigeration low-wind intervals, each sub refrigeration low-wind interval corresponds to one refrigeration frequency control rule, and the variation amplitude of the actual operation frequency of the compressor by the plurality of refrigeration frequency control rules is increased along with the reduction of the sub refrigeration low-wind intervals.
2. The control method of an air conditioner according to claim 1, wherein a boundary between the preset heating high wind section and the preset heating low wind section and a boundary between the plurality of sub heating low wind sections are determined by a product of a maximum rotation speed of an indoor fan and different systems;
the boundary between the preset refrigeration high-wind interval and the preset refrigeration low-wind interval and the boundaries between the multiple sub-refrigeration low-wind intervals are determined by the product of the highest rotating speed of the indoor fan and different systems.
3. The control method of an air conditioner according to claim 2, wherein the current rotation speed of the indoor fan is X, the maximum rotation speed of the indoor fan is H, the preset heating low-wind zone includes two of the sub-heating low-wind zones, and the preset cooling low-wind zone includes two of the sub-cooling low-wind zones;
in the heating operation mode, if X is more than H0.6, the air conditioner is positioned in the preset heating high-wind interval, if H is more than 0.6 and more than X is more than H0.3, the air conditioner is positioned in one sub-heating low-wind interval, and if H is more than 0.3 and more than X, the air conditioner is positioned in the other sub-heating low-wind interval;
in the refrigerating operation mode, if X is more than H0.6, the air conditioner is in the preset refrigerating high-wind interval, if H is more than 0.6 and more than X is more than H0.3, the air conditioner is in one sub-refrigerating low-wind interval, and if H is more than 0.3 and more than X, the air conditioner is in the other sub-refrigerating low-wind interval.
4. The method of claim 1, wherein the heating frequency control rule corresponding to each of the sub-heating low wind zones comprises: setting a plurality of heating indoor temperature intervals, wherein the actual operation frequency of the compressor in the heating indoor temperature intervals is reduced along with the increase of the heating indoor temperature intervals;
the refrigeration frequency control rule corresponding to each sub-refrigeration low-wind area comprises the following steps: and setting a plurality of refrigerating room temperature intervals, wherein the actual operating frequency of the compressor in the refrigerating room temperature intervals is increased along with the increase of the refrigerating room temperature intervals.
5. The control method of an air conditioner according to claim 4, wherein each of said heating room temperature sections corresponds to a heating frequency correction value, a plurality of said heating frequency correction values decrease as said heating room temperature sections increase, and an actual operating frequency of the compressor is a product of the heating frequency correction value corresponding to the heating room temperature section in which the indoor ambient temperature is located and said maximum heating frequency;
each refrigerating indoor temperature interval corresponds to a refrigerating frequency correction value, the plurality of refrigerating frequency correction values are increased along with the increase of the refrigerating indoor temperature interval, and the actual operation frequency of the compressor is the product of the refrigerating frequency correction value corresponding to the refrigerating indoor temperature interval where the indoor environment temperature is located and the maximum refrigerating frequency.
6. The control method of an air conditioner according to claim 5, wherein the heating frequency correction value corresponding to the minimum heating indoor temperature zone in each of the sub-heating low wind zones is 1;
and in each sub-refrigeration low-wind interval, the refrigeration frequency correction value corresponding to the largest refrigeration indoor temperature interval is 1.
7. The control method of an air conditioner according to claim 5, wherein the preset heating low wind section includes two of the sub heating low wind sections;
five heating indoor temperature intervals are arranged in one sub-heating low-wind interval, and heating frequency correction values corresponding to the five heating indoor temperature intervals are respectively 1, 0.9, 0.8, 0.7 and 0.6;
four heating indoor temperature intervals are arranged in the other heating low-wind sub-interval, and heating frequency correction values corresponding to the four heating indoor temperature intervals are 1, 0.95, 0.85 and 0.8 respectively;
wherein the one sub-heating low wind interval is smaller than the other sub-heating low wind interval.
8. The control method of an air conditioner according to claim 5, wherein the preset refrigerating low wind zone includes two of the sub-refrigerating low wind zones;
four refrigerating indoor temperature intervals are arranged in one sub-refrigerating low-wind area, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are respectively 0.7, 0.8, 0.9 and 1;
four refrigerating indoor temperature intervals are arranged in the other sub-refrigerating low-wind interval, and the refrigerating frequency correction values corresponding to the four refrigerating indoor temperature intervals are respectively 0.8, 0.85, 0.95 and 1;
wherein, the one sub-refrigeration low-wind interval is smaller than the other sub-refrigeration low-wind interval.
9. The control method of an air conditioner according to any one of claims 1 to 8, wherein the maximum heating frequency is calculated based on an outdoor ambient temperature in a heating operation mode;
the maximum refrigeration frequency is calculated according to the outdoor environment temperature in the refrigeration operation mode.
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| CN115682385A (en) * | 2021-07-30 | 2023-02-03 | 广东美的制冷设备有限公司 | Air conditioner, control method thereof, and computer-readable storage medium |
| US11815280B2 (en) * | 2022-01-31 | 2023-11-14 | Mitsubishi Electric Us, Inc. | System and method for controlling the operation of a fan in an air conditioning system |
| CN114484811A (en) * | 2022-02-09 | 2022-05-13 | 珠海格力电器股份有限公司 | Air conditioner condensation prevention control method and device |
| CN114811835B (en) * | 2022-05-23 | 2023-09-01 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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| JP2019120434A (en) * | 2017-12-28 | 2019-07-22 | 三菱重工サーマルシステムズ株式会社 | Air conditioner and controlling method of the same |
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| CN106322679A (en) * | 2016-08-31 | 2017-01-11 | 广东美的制冷设备有限公司 | Control method for outdoor fan of air conditioner |
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