CN110925959A - Air conditioner energy-saving control method and device, air conditioner and storage medium - Google Patents
Air conditioner energy-saving control method and device, air conditioner and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000004378 air conditioning Methods 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 39
- 238000005057 refrigeration Methods 0.000 description 11
- 238000005265 energy consumption Methods 0.000 description 8
- 238000004134 energy conservation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- F24F11/62—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
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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
- F24F11/88—Electrical aspects, e.g. 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
- 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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- Air Conditioning Control Device (AREA)
Abstract
本发明提供了一种空调节能控制方法、装置、空调器及存储介质，该方法包括：获取室内环境温度和室外环境温度；根据所述室内环境温度和所述室外环境温度，确定空调是否以多级节能模式运行，所述多级节能模式用于分阶段降低压缩机的运行频率。本发明实现了在空调的实际控制过程中，通过获取室内环境温度和室外环境温度，获知空调当前的运行状态，进而自动确定空调是否以多级节能模式运行，从而分阶段降低压缩机的运行频率，最后至以固定低频运行，以免压缩机以固定低频运行的时间过长，达到节电效果，同时满足节能的需求，并避免对空调运行效果的过大影响，以保证用户的舒适体验。
The present invention provides an energy-saving control method, device, air conditioner and storage medium for an air conditioner. The method includes: acquiring an indoor ambient temperature and an outdoor ambient temperature; The multi-stage energy-saving mode is used to reduce the operating frequency of the compressor in stages. The invention realizes that in the actual control process of the air conditioner, the current operating state of the air conditioner is obtained by acquiring the indoor ambient temperature and the outdoor ambient temperature, and then it is automatically determined whether the air conditioner operates in a multi-level energy-saving mode, thereby reducing the operating frequency of the compressor in stages. , and finally run at a fixed low frequency, so as to prevent the compressor from running at a fixed low frequency for too long, achieve the effect of energy saving, and at the same time meet the needs of energy saving, and avoid excessive influence on the operation effect of the air conditioner, so as to ensure the user's comfortable experience.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner energy-saving control method and device, an air conditioner and a storage medium.
Background
With the development of air conditioning technology, inverter air conditioners are becoming more and more choices for consumers. When the variable frequency air conditioner operates, the frequency of the compressor can be automatically adjusted within a certain range according to the cold and heat demand of a room. In order to further realize the power saving function, part of the air conditioners have an energy saving mode, that is, when a user selects the mode through a remote controller, the air conditioners can run at a fixed low frequency under a certain condition to achieve the effect of energy saving. However, this requires the user to manually select this function, and on the other hand, operation at this fixed low frequency also affects the cooling effect of the air conditioner, which affects the user experience.
Disclosure of Invention
The invention solves the problem of meeting the energy-saving requirement at the same time and avoids the overlarge influence on the operation effect of the air conditioner so as to ensure the comfortable experience of users.
In order to solve the above problem, in a first aspect, the present invention provides an energy saving control method for an air conditioner, including the following steps:
acquiring indoor ambient temperature and outdoor ambient temperature;
and determining whether the air conditioner is operated in a multi-stage energy-saving mode according to the indoor ambient temperature and the outdoor ambient temperature, wherein the multi-stage energy-saving mode is used for reducing the operation frequency of the compressor in stages.
In the actual control process of the air conditioner, the current running state of the air conditioner can be known by acquiring the indoor environment temperature and the outdoor environment temperature, and then whether the air conditioner runs in a multistage energy-saving mode or not is automatically determined, so that the running frequency of the compressor is reduced in stages, and finally the compressor runs at a fixed low frequency, so that the compressor is prevented from running at the fixed low frequency for too long time, the electricity-saving effect is achieved, the energy-saving requirement is met, the excessive influence on the running effect of the air conditioner is avoided, and the comfortable experience of a user is ensured.
Further, the multi-stage energy saving mode comprises a one-stage energy saving mode; determining whether the air conditioner operates in a multi-stage energy-saving mode according to the indoor environment temperature and the outdoor environment temperature, specifically comprising:
and when the air conditioner operates in a refrigeration mode and the difference value between the indoor environment temperature and the preset temperature is determined to be less than or equal to a first preset temperature threshold value continuously for a first preset time, controlling the air conditioner to operate in the primary energy-saving mode.
In the actual control process of the air conditioner, because the indoor environment temperature may change in real time when the air conditioner operates, therefore, in order to avoid misjudgment, when the difference value between the indoor environment temperature and the preset temperature is less than or equal to a first preset temperature threshold value within a continuous period of time, the air conditioner can be determined to automatically operate in a first-level energy-saving mode, even if the indoor environment temperature does not reach the preset temperature of a user, the user opens the energy-saving mode of the air conditioner, the time that the compressor operates at a fixed low frequency is not too long, the efficiency of the compressor is improved, the energy consumption is saved, the energy-saving control of the air conditioner can meet the energy-saving requirement, the operation effect of the air conditioner is not influenced, and the comfort.
Further, the controlling the air conditioner to operate in the primary energy saving mode specifically includes:
the operating frequency of the compressor is controlled to be lowered.
In the actual control process of the air conditioner, the running frequency of the compressor is automatically controlled to be reduced from the original higher running frequency to the lower running frequency, so that the running frequency of the compressor is reduced for the first time, the energy-saving effect is achieved, the running effect of the air conditioner is ensured, and the use experience of a user is improved.
Further, the controlling the operating frequency of the compressor to decrease specifically includes:
and obtaining the running frequency of the compressor, and after running for a third preset time at the running frequency of the compressor, reducing the running frequency of the compressor at a preset speed until reaching a preset running frequency threshold value of the compressor.
In the actual control process of air conditioner, through acquireing compressor operating frequency, can learn the current running state of air conditioner, in order to guarantee the reliability of compressor, it is too fast to avoid compressor operating frequency fluctuation from top to bottom, influence user's travelling comfort, need with compressor operating frequency under the current running state after a period of operation, reduce compressor operating frequency again with the speed of predetermineeing automatically, thereby play the effect of energy-conservation, the operational effect of air conditioner has been guaranteed simultaneously, user's comfortable demand has been satisfied.
Further, the preset compressor operation frequency threshold is searched from a corresponding relation between the temperature interval and the preset compressor operation frequency threshold, which is established in advance, according to the temperature interval where the outdoor environment temperature is located;
the temperature intervals include a first temperature interval: [40 ℃ C., + ∞); the preset compressor running frequency threshold corresponding to the first temperature interval is a first preset compressor running frequency threshold;
the temperature intervals include a second temperature interval: (35 ℃, 40 ℃); the preset compressor running frequency threshold corresponding to the second temperature interval is a second preset compressor running frequency threshold;
the temperature intervals include a third temperature interval: the preset compressor running frequency threshold corresponding to the third temperature interval is a third preset compressor running frequency threshold;
the first preset compressor running frequency threshold is smaller than the second preset compressor running frequency threshold, and the second preset compressor running frequency threshold is smaller than the third preset compressor running frequency threshold.
In the actual control process of the air conditioner, according to the temperature interval of the outdoor environment temperature, the preset compressor running frequency threshold value is automatically searched from the corresponding relation between the preset temperature interval and the preset compressor running frequency threshold value, so that the preset compressor running frequency threshold value can automatically adapt to the current working environment of the air conditioner, the running effect of the air conditioner is guaranteed, and the use experience of a user is improved.
Further, the multi-stage energy saving mode also comprises a two-stage energy saving mode; determining whether the air conditioner operates in a multi-stage energy-saving mode according to the indoor environment temperature and the outdoor environment temperature, and specifically further comprising:
and when the outdoor environment temperature is less than or equal to a second preset temperature threshold value, controlling the air conditioner to operate in the secondary energy-saving mode.
In the actual control process of the air conditioner, the current running state of the air conditioner is known by determining the relation between the outdoor environment temperature and the second preset temperature threshold, and then whether the air conditioner runs in the secondary energy-saving mode is automatically determined, so that the compressor runs at the fixed low frequency when a certain condition is met, the time that the compressor runs at the fixed low frequency is shortened, the energy-saving effect is further played, the running effect of the air conditioner is ensured, and the comfort level of a user is improved.
Further, the controlling the air conditioner to operate in the secondary energy saving mode specifically includes:
the compressor is controlled to operate at a preset frequency.
In the actual control process of the air conditioner, the running frequency of the compressor is reduced to a fixed preset frequency to run, namely, the low frequency is fixed, the running frequency of the compressor is reduced for the second time, the further energy-saving effect is achieved, the running effect of the air conditioner is guaranteed, and the use experience of a user is improved.
Further, the determining whether the air conditioner operates in a multi-stage energy saving mode according to the indoor ambient temperature and the outdoor ambient temperature specifically further includes:
and when the difference value between the indoor environment temperature and the preset temperature is greater than a third preset temperature threshold value, controlling the air conditioner to exit the multistage energy-saving mode, wherein the third preset temperature threshold value is greater than the first preset temperature threshold value.
In the actual control process of the air conditioner, the current running state of the air conditioner can be known through the indoor environment temperature, and then whether the difference value between the indoor environment temperature and the preset temperature is larger than a third preset temperature threshold value or not is automatically judged, so that whether the air conditioner keeps running in the current energy-saving mode or not is automatically determined, the running effect of the air conditioner is guaranteed, and meanwhile, the energy-saving requirement of a user can be met.
Further, the air conditioner energy-saving control method further comprises the following steps:
after receiving an energy-saving starting signal from a remote controller, when the difference value between the indoor environment temperature and the preset temperature is determined to be smaller than or equal to a first preset temperature threshold value for a second preset time, and the outdoor environment temperature is smaller than or equal to a second preset temperature threshold value, controlling the air conditioner to operate in a secondary energy-saving mode, wherein the second preset time is longer than the first preset time.
In the actual control process of the air conditioner, because the indoor ambient temperature and the outdoor ambient temperature may change in real time when the air conditioner operates, in order to avoid misjudgment, the conditions are required to be met continuously for a period of time, and then the next operation can be determined to be executed. After receiving an energy-saving starting signal from a remote controller, controlling the air conditioner to directly run in a secondary energy-saving mode when the condition is determined to be met; when the energy-saving starting signal from the remote controller is not received, the air conditioner is controlled according to the air conditioner energy-saving control method if the condition is met, automatic adjustment is carried out, an automatic energy-saving control function is added to the air conditioner on the basis of the original manual control energy-saving function, certain energy consumption is saved when the air conditioner operates in a refrigeration mode, and the operation effect of the air conditioner can be guaranteed. Meanwhile, the first preset time is shorter than the second preset time, so that the time of the compressor running at a fixed frequency under the original manual control energy-saving function is shortened, the efficiency of the compressor is improved, and more energy consumption is saved.
In a second aspect, the present invention further provides an energy saving control device for an air conditioner, including:
an acquisition unit for acquiring an indoor ambient temperature and an outdoor ambient temperature;
a processing unit for determining whether the air conditioner is operated in a multi-stage energy saving mode for reducing an operation frequency of the compressor in stages according to the indoor ambient temperature and the outdoor ambient temperature.
The air-conditioning energy-saving control device is used for realizing the air-conditioning energy-saving control method, so that the air-conditioning energy-saving control device at least has all the technical effects of the air-conditioning energy-saving control method.
In a third aspect, the present invention further provides an air conditioner, including a computer readable storage medium storing a computer program and a processor, wherein when the computer program is read and executed by the processor, the air conditioner energy saving control method is implemented.
The technical scheme of the air conditioner at least comprises all technical schemes of the air conditioner energy-saving control method, so that the air conditioner energy-saving control method at least has all technical effects of the air conditioner energy-saving control method.
In a fourth aspect, the present invention also provides a computer-readable storage medium storing a computer program which, when read and executed by a processor, implements the air conditioner energy saving control method as described above.
Since the technical solution of the computer-readable storage medium at least includes all technical solutions of the air-conditioning energy-saving control method, at least all technical effects of the air-conditioning energy-saving control method are achieved.
Drawings
FIG. 1 is a schematic flow chart of an energy-saving control method for an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of an energy-saving control method for an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of an energy-saving control method for an air conditioner according to an embodiment of the present invention;
fig. 4 is a block diagram of an energy-saving control device of an air conditioner in an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It should be noted that in the following description, suffixes such as "module", "component", or "unit" used to indicate elements are used only for facilitating the description of the present invention, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
If the user turns on the air conditioner and sets a certain cooling temperature, and when the indoor ambient temperature has not reached the temperature set by the user, the user has manually selected the energy saving mode of the air conditioner, and the air conditioner will operate at a fixed low frequency. In this case, in order to make the room temperature reach the temperature set by the user, the compressor needs to be operated for a longer time, which may affect the comfort of the user. In addition, since the actual efficiency of the compressor is related to the operating conditions, and the highest efficiency point of the compressor, which is usually the point where the compressor operates at a higher frequency, is lower than when the compressor operates at a higher frequency under the same technical conditions. If the operation time is too long at the fixed low frequency, more energy consumption may be wasted, and even the energy saving effect cannot be achieved.
As shown in fig. 1, an energy-saving control method for an air conditioner according to an embodiment of the present invention includes the following steps:
s10: acquiring indoor ambient temperature and outdoor ambient temperature;
s20: and determining whether the air conditioner is operated in a multi-stage energy-saving mode according to the indoor ambient temperature and the outdoor ambient temperature, wherein the multi-stage energy-saving mode is used for reducing the operation frequency of the compressor in stages.
It should be noted that the indoor ambient temperature is defined as TIndoor useOutdoor ambient temperature is defined as TOutdoors。
Specifically, an indoor ambient temperature sensor may be disposed on an indoor unit main control panel of the air conditioner, and an outdoor ambient temperature sensor may be disposed on an outdoor unit main control panel of the air conditioner. After the air conditioner is powered on, a user starts a refrigeration mode through an air conditioner remote controller, and the indoor environment temperature sensor is used for acquiring the indoor environment temperature T in real timeIndoor useOutdoor environment temperature sensor for real-time collecting outdoor environment temperature TOutdoors。
Wherein the indoor ambient temperature TIndoor useThe accuracy of the variation of (c) may be 1 ℃, for example: indoor ambient temperature sensor acquisitionCurrent indoor ambient temperature TIndoor useAnd the temperature is 34 ℃, when the indoor environment temperature sensor again obtains that the indoor environment temperature is 34.5 ℃, the indoor environment temperature is still maintained at 34 ℃ in the air-conditioning energy-saving control method, and when the indoor environment temperature sensor again obtains that the indoor environment temperature is 35 ℃, the indoor environment temperature is changed to 35 ℃ in the air-conditioning energy-saving control method.
In addition, the outdoor ambient temperature TOutdoorsThe accuracy of the variation of (c) may be 2 ℃, for example: the outdoor environment temperature sensor acquires the current outdoor environment temperature TOutdoorsAnd 34 deg.c, when the outdoor ambient temperature sensor again acquires that the outdoor ambient temperature is 35 deg.c, the outdoor ambient temperature is still maintained at 34 deg.c in the air-conditioning energy-saving control method, and when the outdoor ambient temperature sensor again acquires that the outdoor ambient temperature is 36 deg.c, the outdoor ambient temperature becomes 36 deg.c in the air-conditioning energy-saving control method.
In this embodiment, in the actual control process of the air conditioner, through obtaining indoor ambient temperature and outdoor ambient temperature, can learn the current running state of the air conditioner, and then whether the air conditioner operates in the multi-stage energy-saving mode is determined automatically, thereby reducing the operating frequency of the compressor stage by stage, and finally operating with fixed low frequency, so as to avoid the compressor from operating with fixed low frequency for too long time, reach the effect of economizing on electricity, satisfy the demand of user's energy saving simultaneously, and avoid the too big influence on the air conditioner operation effect, so as to guarantee the comfortable experience of user.
Optionally, the multi-stage energy saving mode comprises a one-stage energy saving mode; determining whether the air conditioner operates in a multi-stage energy-saving mode according to the indoor environment temperature and the outdoor environment temperature, specifically comprising:
and when the air conditioner operates in a refrigeration mode and the difference value between the indoor environment temperature and the preset temperature is determined to be less than or equal to a first preset temperature threshold value continuously for a first preset time, controlling the air conditioner to operate in the primary energy-saving mode.
It should be noted that the first predetermined time is defined as M, and the predetermined temperature is defined as TPreset ofThe difference between the indoor ambient temperature and the preset temperature is defined as (T)Indoor use-TPreset of) First preliminaryLet the temperature threshold be defined as △ T1。
Specifically, as shown in FIG. 2, when M minutes are continuously determined (T)Indoor use-TPreset of)≤△T1Automatically controlling the air conditioner to run in a primary energy-saving mode; otherwise, the air conditioner does not operate in the first-stage energy-saving mode and keeps the current operation state.
The value range of the first preset time M is 3-5 minutes, preferably 5 minutes, and the indoor environment temperature may change in real time when the air conditioner operates, so that in order to avoid misjudgment, the condition is continuously obtained for a period of time to meet the requirement, and whether the air conditioner operates in the primary energy-saving mode can be determined. In order to ensure the accuracy of the judgment, the first preset time cannot be selected too short, otherwise, misjudgment is caused, too long is not selected, otherwise, the refrigeration and energy-saving effects are influenced, and therefore, judgment is performed by acquiring the satisfied conditions for 5 minutes continuously, so that the obtained judgment result is more accurate.
In addition, the first preset temperature threshold △ T1The value range of the temperature difference is 1.0-2.0 ℃, the preferred value range is 1.0 ℃, and in order to not influence the reliability of the air conditioner energy-saving control method and ensure the timeliness of the air conditioner running in a primary energy-saving mode, a first preset temperature threshold value which is too large cannot be selected, otherwise, the energy-saving control is unreasonable.
In this embodiment, in the actual control process of the air conditioner, because the indoor ambient temperature may change in real time when the air conditioner operates, therefore, in order to avoid misjudgment, when the difference between the indoor ambient temperature and the preset temperature is less than or equal to the first preset temperature threshold value within a continuous period of time, the air conditioner can be automatically determined to operate in the primary energy-saving mode, even if the indoor ambient temperature does not reach the preset temperature of the user, the energy-saving mode of the air conditioner is opened by the user, the time for the compressor to operate at the fixed low frequency is not too long, so that the efficiency of the compressor is improved, the energy consumption is saved, so that the energy-saving control of the air conditioner can meet the energy-saving requirement of the user, and the operating effect of the air conditioner.
Optionally, the controlling the air conditioner to operate in the primary energy saving mode specifically includes:
the operating frequency of the compressor is controlled to be lowered.
Specifically, in the actual control process of the air conditioner, when the air conditioner operates in a primary energy-saving mode, the operating frequency of the compressor is automatically controlled to be reduced from the original higher operating frequency to the lower operating frequency, so that the variable-frequency energy saving is realized, and the energy-saving opening indication icon ECO on the display panel of the air conditioner is controlled to be lightened, so that a user can know the current state of the air conditioner.
In this embodiment, in the actual control process of air conditioner, the operating frequency through the automatic control compressor is reduced to lower operating frequency by original higher operating frequency, has realized reducing the operating frequency of compressor for the first time to light the energy-conserving instruction icon of opening on the panel with the running state of suggestion user's air conditioner this moment, played energy-conserving effect, guaranteed the operation effect of air conditioner simultaneously, promoted user's use and experienced.
Optionally, the controlling the operating frequency of the compressor to decrease specifically includes:
and obtaining the running frequency of the compressor, and after running for a third preset time at the running frequency of the compressor, reducing the running frequency of the compressor at a preset speed until reaching a preset running frequency threshold value of the compressor.
It should be noted that the operating frequency of the compressor is defined as FCH, the third preset time is defined as L, the preset rate is defined as R, and the preset compressor operating frequency threshold is defined as Fx.
Specifically, the compressor operation frequency FCH in the current operation state of the air conditioner is obtained, and after the air conditioner is operated for a period of time, the compressor operation frequency FCH is reduced at a preset rate until a preset compressor operation frequency threshold Fx is reached.
The value range of the third preset time L is 1-2 minutes, preferably 1 minute, and in order to ensure that air-conditioning resources are not wasted, the third preset time L cannot be selected too long, otherwise, the air-conditioning resources are wasted, so that, for example, the compressor is operated for 1 minute at the operating frequency in the current operating state, and then the next operation is performed. Meanwhile, the operation time is also beneficial to acquiring the operation frequency FCH of the compressor after the air conditioner enters the primary energy-saving mode.
In addition, the preferred value of the preset rate is 2Hz/min, in order to ensure the reliability of the compressor and avoid the condition that the operating frequency of the compressor fluctuates too fast up and down, the preset rate should not be selected to be too large, and therefore, for example, the operating frequency FCH of the compressor is reduced at the preset rate of 2 Hz/min.
In this embodiment, in the actual control process of air conditioner, through acquireing compressor operating frequency, can learn the current running state of air conditioner, in order to guarantee the reliability of compressor, it is too fast to avoid compressor operating frequency fluctuation from top to bottom, influence user's travelling comfort, need with compressor operating frequency operation a period under the current running state after, again with the automatic compressor operating frequency that reduces of predetermined speed, thereby play the effect of energy-conservation, the operation effect of air conditioner has been guaranteed simultaneously, user's comfortable demand has been satisfied.
Optionally, the preset compressor operation frequency threshold is searched from a corresponding relationship between the temperature interval and the preset compressor operation frequency threshold, which is established in advance, according to the temperature interval where the outdoor environment temperature is located;
the temperature intervals include a first temperature interval: [40 ℃ C., + ∞); the preset compressor running frequency threshold corresponding to the first temperature interval is a first preset compressor running frequency threshold;
the temperature intervals include a second temperature interval: (35 ℃, 40 ℃); the preset compressor running frequency threshold corresponding to the second temperature interval is a second preset compressor running frequency threshold;
the temperature intervals include a third temperature interval: the preset compressor running frequency threshold corresponding to the third temperature interval is a third preset compressor running frequency threshold;
the first preset compressor running frequency threshold is smaller than the second preset compressor running frequency threshold, and the second preset compressor running frequency threshold is smaller than the third preset compressor running frequency threshold.
In addition, the first step isThe preset compressor operating frequency threshold is defined as F1And a second predetermined compressor operating frequency threshold is defined as F2And a third predetermined compressor operating frequency threshold is defined as F3。
Specifically, the correspondence relationship between the temperature range in which the outdoor ambient temperature is located and the compressor operation frequency is shown in table 1.
TABLE 1
| Temperature interval | Minimum operating frequency of compressor in refrigeration mode | Presetting compressor running frequency threshold |
| [40℃，+∞) | FCL1 | F1＝(FCH+FCL1)*k |
| (35℃，40℃) | FCL2 | F2＝(FCH+FCL2)*k |
| (－∞，35℃] | FCL3 | F3＝(FCH+FCL3)*k |
Wherein, when the air conditioner operates in refrigeration, the minimum operation frequency FCL of the compressor corresponding to the first temperature interval [40 ℃ and + ∞ ]1Is a fixed value set according to the parameters of the outdoor unit of the air conditioner, for example: 26 Hz; second temperatureInterval (35 deg.C, 40 deg.C) corresponding to minimum compressor running frequency FCL2A fixed value is also set according to parameters of the outdoor unit of the air conditioner, for example: 30 Hz; a third temperature range (-infinity, 35 ℃ C.)]Corresponding compressor minimum operating frequency FCL3Also, a fixed value is set according to parameters of the outdoor unit of the air conditioner, for example: 32 Hz.
In addition, the value range of the proportionality coefficient k for calculating the preset compressor operation frequency threshold is (0,1), preferably 0.5, and because the compressor is provided with the minimum operation frequency (for example: 13Hz) in order to ensure the reliability of the compressor, the proportionality coefficient k cannot be selected to be too small; in order to make the air conditioner have better energy-saving effect, the proportionality coefficient k should not be selected to be too large.
In this embodiment, in the actual control process of the air conditioner, according to the temperature interval in which the outdoor environment temperature is located, the preset compressor operation frequency threshold is automatically searched from the correspondence between the preset temperature interval and the preset compressor operation frequency threshold, so that the preset compressor operation frequency threshold can automatically adapt to the current working environment of the air conditioner, the operation effect of the air conditioner is ensured, and the use experience of a user is improved.
Optionally, the multi-stage energy saving mode further includes a secondary energy saving mode; determining whether the air conditioner operates in a multi-stage energy-saving mode according to the indoor environment temperature and the outdoor environment temperature, and specifically further comprising:
and when the outdoor environment temperature is less than or equal to a second preset temperature threshold value, controlling the air conditioner to operate in the secondary energy-saving mode.
It should be noted that the second predetermined temperature threshold is defined as △ T2，△T2Is a fixed temperature, and can be set by the outdoor machine parameters according to different compressors.
Specifically, as shown in FIG. 2, when T isOutdoors≤△T2Automatically controlling the air conditioner to run in a secondary energy-saving mode; when T isOutdoors>△T2And when the air conditioner is in the first-level energy-saving mode, controlling the air conditioner to continuously run in the second-level energy-saving mode.
In the embodiment, in the actual control process of the air conditioner, the current running state of the air conditioner is obtained by judging the relation between the outdoor environment temperature and the second preset temperature threshold, and then whether the air conditioner runs in the secondary energy-saving mode is automatically determined, so that the compressor runs at the fixed low frequency when a certain condition is met, the time for the compressor to run at the fixed low frequency is shortened, the energy-saving effect is further played, the running effect of the air conditioner is ensured, and the comfort level of a user is improved.
Optionally, the controlling the air conditioner to operate in the secondary energy saving mode specifically includes:
the compressor is controlled to operate at a preset frequency.
It should be noted that the preset frequency is a fixed low frequency, and is a fixed operating frequency, and the frequency is within the operating frequency range of the air conditioner compressor, and may be the lowest operating frequency of the air conditioner compressor, for example: 13Hz and the preset frequency is less than a first preset compressor operating frequency threshold.
Specifically, in the actual control process of the air conditioner, when the air conditioner operates in the secondary energy-saving mode, the operating frequency of the compressor is automatically controlled to be reduced to a fixed preset operating frequency, and meanwhile, the energy-saving opening indication icon ECO on the display panel of the air conditioner is controlled to be kept lighted, so that the user is prompted about the current operating state of the air conditioner.
In this embodiment, in the actual control process of air conditioner, the running frequency through the automatic control compressor reduces to a fixed frequency operation of predetermineeing, also is fixed low frequency, has realized the running frequency that reduces the compressor for the second time to the running state of instruction icon in order to indicate user's air conditioner this moment is opened in the energy-conservation on the lighting panel, has played further energy-conserving effect, has guaranteed the operation effect of air conditioner simultaneously, has promoted user's use and has experienced.
Optionally, determining whether the air conditioner operates in a multi-stage energy saving mode according to the indoor ambient temperature and the outdoor ambient temperature, specifically further comprising:
and when the difference value between the indoor environment temperature and the preset temperature is greater than a third preset temperature threshold value, controlling the air conditioner to exit the multistage energy-saving mode, wherein the third preset temperature threshold value is greater than the first preset temperature threshold value.
It should be noted that the third preset temperature threshold is defined as △ T3。
Specifically, as shown in FIG. 2, when (T)Indoor use-TPreset of)>△T3When the energy-saving control device is used, the air conditioner is automatically controlled to exit the energy-saving mode, namely, the air conditioner does not operate in a secondary energy-saving mode or a primary energy-saving mode, the compressor operates according to a conventional state, and the energy-saving starting indication icon on the display panel of the air conditioner is turned off; otherwise, the air conditioner keeps the current secondary energy-saving mode to operate.
In addition, as shown in FIG. 3, when (T)Indoor use-TPreset of)>△T3When the air conditioner is in the first-stage energy-saving mode, the compressor is controlled to run according to the conventional state, and the energy-saving starting indication icon on the display panel of the air conditioner is turned off; otherwise, the air conditioner keeps the current primary energy-saving mode to operate.
Wherein the third preset temperature threshold value △ T3The value range of the temperature difference is 2.0-3.0 ℃, the preferred value range is 2.5 ℃, and as the reliability of the air conditioner energy-saving control method is not influenced, and the timeliness of the air conditioner running in a primary energy-saving mode is ensured, a third preset temperature threshold value which is too large cannot be selected, otherwise, the energy-saving control is unreasonable; in order to ensure the accuracy of judgment, the third preset temperature threshold value cannot be too small, otherwise misjudgment can be carried out, and the comfort of use of a user is influenced.
In this embodiment, in the actual control process of the air conditioner, the current operation state of the air conditioner can be known through the indoor ambient temperature, and then whether the difference between the indoor ambient temperature and the preset temperature is greater than the third preset temperature threshold value or not is automatically judged, so that whether the air conditioner keeps the current energy-saving mode to operate or not is determined automatically, the operation effect of the air conditioner is ensured, and meanwhile, the energy-saving requirement of a user can be met.
Optionally, as shown in fig. 2, the air conditioner energy saving control method further includes the following steps:
after receiving an energy-saving starting signal from a remote controller, when the difference value between the indoor environment temperature and the preset temperature is determined to be smaller than or equal to a first preset temperature threshold value for a second preset time, and the outdoor environment temperature is smaller than or equal to a second preset temperature threshold value, controlling the air conditioner to operate in a secondary energy-saving mode, wherein the second preset time is longer than the first preset time.
It should be noted that the second preset time is defined as N.
Specifically, after the air conditioner is powered on, a user starts a refrigeration mode through an air conditioner remote controller, and the indoor environment temperature sensor acquires the indoor environment temperature T in real timeIndoor useOutdoor environment temperature T is obtained in real time by the outdoor environment temperature sensorOutdoorsAnd then, after receiving the energy-saving starting signal from the remote controller, the (T) is acquired in real time when the N minutes are continuedIndoor use-TPreset of)≤△T3And TOutdoors≤△T2And when the air conditioner is automatically controlled to run in a secondary energy-saving mode, the compressor automatically changes from a higher running frequency to a fixed running at a preset frequency, and an energy-saving starting indication icon on the air conditioner display panel is lightened to prompt a user of the running state of the air conditioner at the moment. If the air conditioner is currently operated in the first-stage energy-saving mode, the energy-saving starting signal from the remote controller is received, and the signal is obtained in real time when the time lasts for N minutes (T)Indoor use-TPreset of)≤△T3And TOutdoors≤△T2And when the air conditioner is automatically controlled to run in a secondary energy-saving mode, the compressor automatically changes from a lower running frequency to a fixed running at a preset frequency, and an energy-saving starting indication icon on the air conditioner display panel is kept lighted to prompt a user of the running state of the air conditioner at the moment. If the air conditioner is currently operated in the secondary energy-saving mode, the energy-saving starting signal from the remote controller is received, and the signal is obtained in real time when the time lasts for N minutes (T)Indoor use-TPreset of)≤△T3And TOutdoors≤△T2And automatically controlling the air conditioner to continuously run in a secondary energy-saving mode. The air conditioner exits the energy-saving mode in an automatic mode, and acquires (T) in real time when N minutes are continuously carried out after receiving an energy-saving starting signal from a remote controllerIndoor use-TPreset of)≤△T3And TOutdoors≤△T2And when the air conditioner is automatically controlled to run in a secondary energy-saving mode, the compressor automatically changes from a higher running frequency to a fixed running at a preset frequency, and an energy-saving starting indication icon on the air conditioner display panel is lightened to prompt a user of the running state of the air conditioner at the moment.
In addition, if the energy-saving turn-on signal from the remote controller is received and then the energy-saving turn-off signal from the remote controller is received, the air conditioner is controlled to exit the energy-saving mode, and the air conditioner can not be controlled according to the air conditioner energy-saving control method. And when the user re-turns on or off the air conditioner and enters the refrigeration mode or enters the refrigeration mode again after switching the mode, controlling the air conditioner according to the energy-saving control method of the air conditioner again.
The value range of the second preset time N is 10-15 minutes, preferably 10 minutes, and the indoor environment temperature may change in real time when the air conditioner operates, so that in order to avoid misjudgment, the condition is continuously obtained for a period of time to meet, and whether the air conditioner operates in the secondary energy-saving mode can be automatically determined. In order to ensure that the air conditioner resources are not wasted, the second preset time which is too long cannot be selected, otherwise, the air conditioner resources are wasted.
Generally, the energy-saving mode of the air conditioner is that the compressor runs for a second preset time M continuously at a fixed low frequency, and the first preset time N is shorter than the second preset time M, so that the time that the compressor runs at the fixed low frequency is shortened, the energy-saving mode that the air conditioner is turned on by a user when the indoor environment temperature does not reach the preset temperature of the user is avoided, the time that the compressor runs at the fixed low frequency is too long, the efficiency of the compressor is reduced, and more energy consumption is wasted.
In this embodiment, in the actual control process of the air conditioner, since the indoor ambient temperature and the outdoor ambient temperature may change in real time when the air conditioner operates, in order to avoid misjudgment, it is necessary to acquire the satisfied condition continuously for a certain period of time, and only then the next operation can be automatically determined to be executed. After receiving an energy-saving starting signal from a remote controller, controlling the air conditioner to directly run in a secondary energy-saving mode when the condition is determined to be met; when the energy-saving starting signal from the remote controller is not received, the air conditioner is controlled according to the air conditioner energy-saving control method if the condition is met, automatic adjustment is carried out, an automatic energy-saving control function is added to the air conditioner on the basis of the original manual control energy-saving function, certain energy consumption is saved when the air conditioner operates in a refrigeration mode, and the operation effect of the air conditioner can be guaranteed. Meanwhile, the first preset time is shorter than the second preset time, so that the time of the compressor running at a fixed frequency under the original manual control energy-saving function is shortened, the efficiency of the compressor is improved, and more energy consumption is saved.
As shown in fig. 4, an energy-saving control device for an air conditioner in another embodiment of the present invention includes:
an acquisition unit for acquiring an indoor ambient temperature and an outdoor ambient temperature;
a processing unit for determining whether the air conditioner is operated in a multi-stage energy saving mode for reducing an operation frequency of the compressor in stages according to the indoor ambient temperature and the outdoor ambient temperature.
In another embodiment of the present invention, an air conditioner includes a computer readable storage medium storing a computer program and a processor, and when the computer program is read and executed by the processor, the air conditioner energy saving control method as described above is implemented.
In another embodiment of the present invention, there is also provided a computer-readable storage medium storing a computer program which, when read and executed by a processor, implements the air conditioner energy saving control method as described above.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
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