CN115628525A - Control method and control device of air conditioner and air conditioner - Google Patents
Control method and control device of air conditioner and air conditioner Download PDFInfo
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- CN115628525A CN115628525A CN202211352112.4A CN202211352112A CN115628525A CN 115628525 A CN115628525 A CN 115628525A CN 202211352112 A CN202211352112 A CN 202211352112A CN 115628525 A CN115628525 A CN 115628525A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000007664 blowing Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 abstract description 6
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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
- F24F11/62—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
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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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
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- Thermal Sciences (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, and provides a control method and a control device of an air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the following steps: acquiring the outdoor environment temperature; and determining that the command for operating the differential air supply mode is received in the indoor heat exchange mode, and adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode. The air conditioner can also efficiently refrigerate or heat in the differential air supply mode, so that the indoor heat exchange efficiency is improved, the indoor air quantity is also improved, meanwhile, the frequency of the compressor synchronously changes according to the outdoor environment temperature and the differential air supply mode, the air temperature blown to a user in the differential air supply process can be kept stable, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a control method and a control device for an air conditioner, and an air conditioner.
Background
The air conditioner can accelerate air flow during air supply, keep indoor air fresh, and simultaneously can quickly change indoor temperature, and mainly plays a role in circulating air. In the related art, the air supply mode of the air conditioner is single, and when the air conditioner meets the requirement of rapid cooling and heating, large air volume compensation cannot be performed in time, so that the requirement of a user is difficult to meet.
Disclosure of Invention
The present invention has been made to solve at least one of the technical problems occurring in the related art. Therefore, the invention provides a control method of an air conditioner, when the air conditioner receives an instruction of operating a differential air supply mode in a heat exchange mode, the operation frequency of a compressor is adjusted to a differential frequency limiting frequency, so that the air quantity of the air conditioner can be adjusted in real time, indoor rapid refrigeration and heating are realized, and the user experience is improved.
The invention also provides a control device of the air conditioner.
The invention also provides an air conditioner.
According to a first aspect of the present invention, there is provided a control method for an air conditioner, including:
acquiring the outdoor environment temperature;
and if the indoor heat exchange mode receives the instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
According to an embodiment of the present invention, the step of determining that the command for operating the differential speed air supply mode is received in the indoor heat exchange mode, and adjusting the operating frequency of the compressor to the differential speed frequency limiting frequency according to the outdoor ambient temperature and the differential speed air supply mode specifically includes:
determining that an instruction for operating a differential air supply mode is received in a refrigeration mode, and adjusting the operating frequency of a compressor to a first differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode;
or determining that the heating mode receives an instruction of operating the differential air supply mode, and adjusting the operating frequency of the compressor to a second differential frequency limiting frequency according to the outdoor ambient temperature and the differential air supply mode.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to a first differential frequency limit frequency based on the outdoor ambient temperature and the differential air supply mode comprises:
acquiring an initial operating frequency of a compressor;
determining a first correction coefficient according to the differential air supply mode, and determining a second correction coefficient according to the outdoor environment temperature and the differential air supply mode;
determining the first differential frequency limiting frequency according to the initial operating frequency, the first correction coefficient and the second correction coefficient; comprises the following steps of;
wherein the first differential frequency limiting frequency is less than or equal to the initial operating frequency.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to a second differential frequency limit frequency based on the outdoor ambient temperature and the differential air supply mode comprises:
acquiring an initial operating frequency of a compressor;
determining a third correction coefficient according to the differential air supply mode, and determining a fourth correction coefficient according to the outdoor environment temperature;
determining the second differential frequency limiting frequency according to the initial operating frequency, the third correction coefficient and the fourth correction coefficient;
wherein the second differential frequency limiting frequency is greater than or equal to the initial operating frequency.
According to an embodiment of the present invention, the step of obtaining the initial operating frequency of the compressor further comprises:
acquiring a first frequency transmitted indoors and an outer loop temperature limiting frequency;
determining a fifth correction factor according to the outdoor environment temperature and/or the differential air supply mode;
and correcting the first frequency through the fifth correction coefficient to obtain a second frequency, and determining the smaller of the second frequency and the outer temperature limiting frequency as the initial operating frequency.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to a second differential frequency limiting frequency according to the outdoor ambient temperature and the differential blowing mode further comprises:
acquiring an initial opening degree of the electronic expansion valve;
determining a target opening degree of the electronic expansion valve according to the initial opening degree, the second differential frequency limiting frequency and the initial operation frequency;
and adjusting the opening degree of the electronic expansion valve to the target opening degree.
According to an embodiment of the present invention, the step of adjusting the opening degree of the electronic expansion valve to the target opening degree further includes:
determining that the outdoor environment temperature is smaller than a first temperature threshold or larger than a second temperature threshold, and determining that the target opening degree is equal to the initial opening degree;
wherein the first temperature threshold is less than the second temperature threshold.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to a differential frequency limit frequency according to the outdoor ambient temperature and the differential blowing mode further includes:
repeating the steps every preset time interval, and re-determining the differential frequency limiting frequency.
According to a second aspect of the present invention, there is provided a control apparatus for an air conditioner, comprising:
the acquisition module is used for acquiring the outdoor environment temperature;
and the control module is used for determining that an instruction for operating a differential air supply mode is received in an indoor heat exchange mode, and adjusting the operating frequency of the compressor to a differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
According to the air conditioner provided by the embodiment of the third aspect of the invention, the air conditioner executes the control method of the air conditioner or comprises the control device of the air conditioner during operation.
One or more technical solutions in the present invention have at least one of the following technical effects:
according to a first aspect of the present invention, there is provided a control method for an air conditioner, including: acquiring the outdoor environment temperature; and if the indoor heat exchange mode receives the instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode. When the air conditioner operates in a cooling mode or a heating mode, if the differential air supply mode is synchronously operated, the indoor air quantity can be improved, and the comfort level of a user is further improved. Meanwhile, the running frequency of the compressor is adjusted to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode, the air conditioner can also efficiently refrigerate or heat in the differential air supply mode, and the indoor heat exchange efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a control device of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Reference numerals are as follows:
400. a receiving module; 401. and a control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings in the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the related art, the air supply mode of the air conditioner is single, and when the air conditioner meets the requirement of rapid cooling and heating, large air volume compensation cannot be performed timely, so that the requirement of a user is difficult to meet.
Referring to fig. 1, a method for controlling an air conditioner according to an embodiment of the present invention includes the following steps:
and S100, acquiring the outdoor environment temperature.
S200, determining that an instruction for operating the differential air supply mode is received in the indoor heat exchange mode, and adjusting the operating frequency of the compressor to be the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
It can be understood that the outdoor unit of the air conditioner is provided with a temperature sensor, and the temperature sensor is in signal connection with the control unit of the indoor unit or the outdoor unit, so that the outdoor environment temperature can be detected in real time. In other cases, a separate temperature sensor or temperature detection device may be provided outdoors, and the temperature sensor or temperature detection device may be in signal connection with the indoor unit or the outdoor unit.
In the correlation technique, the air conditioner is when operation refrigeration mode or heating mode, if the differential air supply mode of synchronous operation, undulant great wind speed can lead to indoor heating effect inhomogeneous, and the user can experience the air blow-through of different temperatures, and indoor heat exchange efficiency is not high, and user's experience is not good.
According to the control method of the air conditioner provided by the embodiment of the invention, when the air conditioner runs in the heat exchange mode and the differential air supply mode, the running frequency of the compressor is adjusted to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode. When the differential air supply mode, the operating frequency of the air conditioner compressor is the differential frequency limiting frequency, so that the air conditioner can efficiently refrigerate or heat, the indoor heat exchange efficiency is improved, the indoor air quantity is also improved, meanwhile, the frequency of the compressor is synchronously changed according to the outdoor environment temperature and the differential air supply mode, the temperature of air blown to a user in the differential air supply process is kept stable, and the user experience is improved.
According to the control method of the air conditioner provided by the embodiment of the invention, the heat exchange mode comprises a cooling mode and a heating mode, the differential air supply mode comprises a low air speed-high air speed mode, a low air speed-medium air speed mode, a mute-high air speed mode and the like, and when the differential air supply mode is operated, the air speed of the air conditioner is periodically switched among different air speeds.
According to one embodiment of the invention, the step of adjusting the operation frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode after determining that the command of operating the differential air supply mode is received in the indoor heat exchange mode specifically comprises the following steps:
s210, determining that an instruction for operating the differential air supply mode is received in the cooling mode, and adjusting the operating frequency of the compressor to a first differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
It can be understood that, in the differential air supply mode of operation under the refrigeration mode, the indoor amount of wind can be improved to the differential air supply, promotes user's experience sense. Meanwhile, the operation frequency of the compressor is changed to the first differential frequency limiting frequency, the indoor refrigerating efficiency is improved, the temperature change of air flow at the air blowing port during differential air supply is reduced as much as possible, and the experience of a user is good.
According to one embodiment of the invention, the step of adjusting the operation frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode after determining that the command of operating the differential air supply mode is received in the indoor heat exchange mode specifically comprises the following steps:
and S220, determining that the heating mode receives an instruction of operating the differential air supply mode, and adjusting the operating frequency of the compressor to a second differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
It can be understood that, in the differential air supply mode of operation under the heating mode, the differential air supply can improve indoor amount of wind, promotes user's experience. Meanwhile, the operation frequency of the compressor is adjusted to the second differential frequency limiting frequency, the indoor heating efficiency is improved, the temperature change of air flow at the air blowing port during differential air supply is reduced as much as possible, and the experience of a user is good.
In some embodiments, the frequency of the compressor can be further determined according to the temperature of indoor air blowing, so that the temperature of the air outlet is not changed during differential air blowing, and a user cannot feel the temperature fluctuation of cold and hot alternation.
According to one embodiment of the present invention, the step of adjusting the operating frequency of the compressor to the first differential frequency limit frequency based on the outdoor ambient temperature and the differential blowing mode comprises:
and S211, acquiring the initial operating frequency of the compressor.
S212, determining a first correction coefficient according to the differential air supply mode, and determining a second correction coefficient according to the outdoor environment temperature and the differential air supply mode.
And S213, determining a first differential frequency limiting frequency according to the initial operation frequency, the first correction coefficient and the second correction coefficient.
And the first differential frequency limiting frequency is less than or equal to the initial running frequency.
The differential speed air supply mode is operated in the refrigeration mode, the operation frequency of the compressor is limited to the first differential speed frequency, the indoor refrigeration efficiency is improved, the temperature change of air flow during differential speed air supply is reduced as far as possible, and the experience feeling of a user is good.
The following examples are given:
assuming that the initial operating frequency of the compressor is Hz1, the first correction coefficient is ac, the second correction coefficient is cc, and the first differential frequency-limiting frequency is mb _ Hz1, the following relationships exist:
mb_Hz1＝Hz1-ac*Hz1+cc
mb _ Hz1= int (mb _ Hz 1), and mb _ Hz1 ≦ Hz1
As can be seen from the above, after the initial operating frequency Hz1, the first correction coefficient ac, and the second correction coefficient cc are determined, the first differential limiting frequency is mb _ Hz1 according to the above formula. Of course, the above formula is only a preferable way to determine the first differential limiting frequency to be mb _ Hz1, and in practice, the first differential limiting frequency mb _ Hz1 may be further adjusted according to the initial operating frequency Hz1, the first correction coefficient ac, and the second correction coefficient cc to improve the comfort of the user.
In steps S211, S212, and S213, the step of adjusting the operating frequency of the compressor to the first differential frequency limit according to the outdoor ambient temperature and the differential blowing mode is mainly described, and after the first differential frequency limit is determined, the operating frequency of the air conditioner compressor is adjusted to the first differential frequency limit.
The step of determining the first correction factor according to the differential blowing mode comprises the following steps:
the differential air supply mode comprises the following steps: a low wind speed-high wind speed mode and a low wind speed-medium wind speed mode; in the low wind speed-high wind speed mode, the first correction coefficient is 0.50; in the low wind speed-medium wind speed mode, the first correction factor is 0.35.
The above-mentioned step of determining the second correction factor according to the outdoor ambient temperature and the differential blowing mode is exemplified as follows:
in the low wind speed-high wind speed mode: when the outdoor environment temperature is less than or equal to 29 ℃, the second correction coefficient is 19; when the outdoor environment temperature is between 29 ℃ and 32 ℃, the second correction coefficient is 24; when the outdoor environment temperature is higher than 32 ℃, the second correction coefficient is 29.
In low-wind-medium wind speed mode: when the outdoor environment temperature is less than or equal to 29 ℃, the second correction coefficient is 11; when the outdoor environment temperature is between 29 ℃ and 32 ℃, the second correction coefficient is 14; when the outdoor environment temperature is higher than 32 ℃, the second correction coefficient is 14.
As can be seen from the above, the first correction factor may be determined according to the differential air supply mode, and the second correction factor may be determined according to the outdoor ambient temperature and the differential air supply mode.
Before step S211, i.e., before the step of acquiring the initial operating frequency of the compressor, it is also necessary to determine the initial operating frequency of the compressor.
According to an embodiment of the present invention, the step of obtaining the initial operating frequency of the compressor further comprises:
acquiring a first frequency transmitted indoors and an outer loop temperature limiting frequency;
determining a fifth correction coefficient according to the outdoor environment temperature and the differential air supply mode;
and correcting the first frequency through a fifth correction coefficient to obtain a second frequency, and determining the smaller of the second frequency and the outer temperature limit frequency as an initial operating frequency.
The step of determining the fifth correction factor according to the outdoor environment temperature and the differential blowing mode includes the following steps:
in the low wind speed-high wind speed mode: when the outdoor environment temperature is less than or equal to 29 ℃, the fifth correction coefficient is 0.55; when the outdoor environment temperature is between 29 ℃ and 32 ℃, the fifth correction coefficient is 0.70; and when the outdoor environment temperature is higher than 32 ℃, the fifth correction coefficient is 1.00.
In low-wind-medium wind speed mode: when the outdoor environment temperature is less than or equal to 29 ℃, the fifth correction coefficient is 0.45; when the outdoor environment temperature is between 29 ℃ and 32 ℃, the fifth correction coefficient is 0.60; and when the outdoor environment temperature is higher than 32 ℃, the fifth correction coefficient is 1.00.
The step of correcting the first frequency by the fifth correction coefficient to obtain the second frequency includes that the fifth correction coefficient is multiplied by the first frequency to obtain the second frequency, or the fifth correction coefficient is added to the first frequency to obtain the second frequency, but the first frequency may be corrected by other manners.
In this embodiment, the second frequency is a product of the first frequency and the fifth correction coefficient, and at this time, the smaller of the second frequency and the outer temperature limit frequency is determined as the initial operating frequency.
The above contents completely describe the control process of operating the differential air supply mode in the refrigeration mode, and the operation frequency of the compressor is changed to the first differential frequency limiting frequency, so that the indoor refrigeration efficiency is improved, the temperature change of the air flow during the differential air supply is reduced as much as possible, and the experience of the user is better.
According to an embodiment of the present invention, the step of determining that the heating mode receives the instruction for operating the differential air supply mode, and adjusting the operating frequency of the compressor to the second differential frequency limiting frequency according to the outdoor ambient temperature and the differential air supply mode specifically includes:
s221, acquiring the initial running frequency of the compressor;
s222, determining a third correction coefficient according to a differential air supply mode, and determining a fourth correction coefficient according to the outdoor environment temperature;
s223, determining a second differential frequency limiting frequency according to the initial running frequency, the third correction coefficient and the fourth correction coefficient;
and the second differential frequency limiting frequency is greater than or equal to the initial running frequency.
And the differential air supply mode is operated in the heating mode, so that the indoor air quantity can be improved through differential air supply, and the experience of a user is improved. Meanwhile, the operation frequency of the compressor is changed to the second differential frequency limiting frequency, the indoor heating efficiency is improved, the temperature change of air flow at the air blowing port during differential air supply is reduced as much as possible, and the experience of a user is good.
The following examples illustrate:
assuming that the initial operating frequency of the compressor is Hz2, the third correction coefficient is ah, the fourth correction coefficient is ch, the second differential frequency-limiting frequency is mb _ Hz2, and the outdoor ambient temperature Tao, the following relationships exist:
mb_Hz2＝Hz2+ah*(Hz2)/2+(5-Tao)*ch；
mb_Hz2＝int(mb_Hz2)，mb_Hz2≧Hz2；
as can be seen from the above, after the initial operating frequency Hz2, the third correction coefficient ah and the fourth correction coefficient ch are determined, the second differential limiting frequency mb _ Hz2 can be calculated according to the above formula. Of course, the above formula is only a preferred way to determine the second differential limiting frequency mb _ Hz2, and in practice, the second differential limiting frequency mb _ Hz2 may be further adjusted according to the initial operating frequency Hz2, the third correction coefficient ah and the fourth correction coefficient ch, so as to improve the comfort of the user.
In steps S221, S222, and S223, the steps of adjusting the operating frequency of the compressor to the second differential frequency limit frequency according to the outdoor ambient temperature and the differential blowing mode are mainly described, and after the second differential frequency limit frequency is determined, the operating frequency of the compressor of the air conditioner is adjusted to the second differential frequency limit frequency.
The step of determining the third correction factor according to the differential blowing mode includes the following steps:
the differential air supply mode comprises the following steps: a low wind speed-high wind speed mode and a mute-high wind speed mode; in the low wind speed-high wind speed mode, the third correction coefficient is 0.54; in the mute-high wind speed mode, the third correction factor is 0.54.
The step of determining the fourth correction coefficient according to the outdoor environment temperature includes the following steps:
when the outdoor environment temperature is less than or equal to 0 ℃, the fourth correction coefficient is 2.0; when the outdoor environment temperature is between 0 ℃ and 5 ℃, the fourth correction coefficient is 1.0; and when the outdoor environment temperature is higher than 5 ℃, the fourth correction coefficient is 0.
As can be seen from the above, the third correction coefficient may be determined according to the differential blowing mode, and the fourth correction coefficient may be determined according to the outdoor ambient temperature.
Before step S221, i.e., before the step of acquiring the initial operating frequency of the compressor, it is also necessary to determine the initial operating frequency of the compressor.
According to an embodiment of the present invention, the step of obtaining the initial operating frequency of the compressor further comprises:
acquiring a first frequency transmitted indoors and an outer loop temperature limiting frequency;
determining a fifth correction coefficient according to the outdoor environment temperature;
and correcting the first frequency through a fifth correction coefficient to obtain a second frequency, and determining the smaller of the second frequency and the outer temperature limit frequency as an initial operating frequency.
The step of determining the fifth correction coefficient according to the outdoor ambient temperature and the differential blowing mode includes the following steps:
when the outdoor environment temperature is less than or equal to 0 ℃, the fifth correction coefficient is 1.00; when the outdoor environment temperature is between 0 ℃ and 5 ℃, the fifth correction coefficient is 0.90; and when the outdoor environment temperature is higher than 5 ℃, the fifth correction coefficient is 0.80.
The step of correcting the first frequency by the fifth correction coefficient to obtain the second frequency includes multiplying the fifth correction coefficient by the first frequency to obtain the second frequency, or adding the fifth correction coefficient to the first frequency to obtain the second frequency, but the first frequency may be corrected by other methods.
In this embodiment, the second frequency is a product of the first frequency and the fifth correction coefficient, and at this time, the smaller of the second frequency and the outer temperature limit frequency is determined as the initial operating frequency.
The above content completely describes the differential air supply mode operating in the heating mode, and the differential air supply can improve the indoor air quantity and improve the experience of users. Meanwhile, the operation frequency of the compressor is changed to the second differential frequency limiting frequency, the indoor heating efficiency is improved, the temperature change of air flow at the air blowing port during differential air supply is reduced as much as possible, and the experience of a user is good.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to the second differential frequency limit frequency according to the outdoor ambient temperature and the differential blowing mode further comprises:
s224, acquiring an initial opening degree of the electronic expansion valve;
s225, determining the target opening degree of the electronic expansion valve according to the initial opening degree, the second differential frequency limiting frequency and the initial running frequency;
and S226, adjusting the electronic expansion valve to the target opening degree.
It can be understood that when the opening degree of the electronic expansion valve is closed, the flow of the refrigerant at the indoor side can be reduced, and the outlet temperature of the evaporator is increased, so that the suction temperature is increased, the system is ensured to have a certain suction superheat (the suction superheat = the suction temperature of the press-the evaporation temperature of the indoor evaporator), and the compressor is ensured not to return liquid seriously; when the opening of the electronic expansion valve is increased, the flow of the refrigerant at the indoor side is increased, the outlet temperature of the evaporator is reduced, the suction superheat degree is not too large, and the refrigeration effect is improved.
The following illustrates the opening adjustment process of the electronic expansion valve:
mb _ PLS is a target opening degree of the electronic expansion valve, PLS is an initial opening degree of the electronic expansion valve, bh is a coefficient (differential control is not determined during the oil return platform operation, PID control is performed, differential frequency is not compensated during the reference opening degree holding period), the following equation exists:
mb_PLS＝PLS+(mb_Hz2–Hz2)*bh
the target opening degree of the electronic expansion valve can be calculated according to the formula, and the dynamic adjustment of the refrigerant flow is combined with the differential air supply mode, so that the heat exchange efficiency is improved.
According to an embodiment of the present invention, the step of adjusting the electronic expansion valve to the target opening degree further comprises:
s2261, determining that the outdoor environment temperature is smaller than a first temperature threshold or larger than a second temperature threshold, and determining that the target opening degree is equal to the initial opening degree;
wherein the first temperature threshold is less than the second temperature threshold.
It is understood that, for the case that the adjustment of the opening degree of the electronic expansion valve is between the first temperature threshold and the second temperature threshold, for example, the first temperature threshold is 5 degrees celsius, the second temperature threshold is 16 degrees celsius, and the outdoor ambient temperature is less than the first temperature threshold or greater than the second temperature threshold, step S2261 is executed, and the opening degree of the electronic expansion valve is not adjusted.
According to an embodiment of the present invention, the step of adjusting the operating frequency of the compressor to the differential frequency limit frequency according to the outdoor ambient temperature and the differential blowing mode further comprises:
and S300, repeating the steps at preset intervals, and re-determining the differential frequency limiting frequency.
It can be understood that the outdoor environment temperature and the differential speed air supply mode may change during operation, and the above steps are repeated at intervals of a preset time, for example, 1min, so that the operation frequency of the compressor can be adjusted in time, and the sensitivity of the air conditioner in a complex working mode is improved.
It should be noted that the time interval between two intrusions before and after the differential blowing control is at least 30 seconds, that is, the time interval between two intrusions into the differential blowing mode is at least 30 seconds, and if the calculation frequency of the differential blowing mode is greater than the calculation frequency of the outdoor environment temperature, the operation is performed according to the calculation frequency of the outdoor environment temperature.
Referring to fig. 2, a control device for an air conditioner according to a second aspect of the present invention includes:
an obtaining module 400 is configured to obtain an outdoor ambient temperature.
And the control module 401 is configured to determine that an instruction for operating the differential air supply mode is received in the indoor heat exchange mode, and adjust the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor ambient temperature and the differential air supply mode.
According to the control device of the air conditioner, provided by the embodiment of the invention, when the air conditioner runs in the heat exchange mode and the differential air supply mode, the running frequency of the compressor is adjusted to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode, the air conditioner can also efficiently refrigerate or heat in the differential air supply mode, the indoor heat exchange efficiency is improved, the indoor air quantity is also improved, meanwhile, the frequency of the compressor synchronously changes according to the outdoor environment temperature and the differential air supply mode, the temperature of air blown to a user in the differential air supply process can be kept stable, and the user experience is improved.
According to the air conditioner provided by the embodiment of the third aspect of the present invention, the air conditioner executes the control method of the air conditioner provided by the embodiment of the first aspect of the present invention when running, or comprises the control device of the air conditioner provided by the embodiment of the second aspect of the present invention.
It can be understood that, when the air conditioner runs in the heat exchange mode and the differential air supply mode, the running frequency of the compressor is adjusted to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode, the air conditioner can also efficiently refrigerate or heat in the differential air supply mode, the indoor heat exchange efficiency is improved, the indoor air quantity is also improved, meanwhile, the frequency of the compressor synchronously changes according to the outdoor environment temperature and the differential air supply mode, the temperature of air blown to a user in the differential air supply process can be kept stable, and the user experience is improved.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include: processor 810 (processor), communication Interface 820 (Communications Interface), memory 830 (memory), and communication bus 840, wherein processor 810, communication Interface 820, and memory 830 communicate with each other via communication bus 840. The processor 810 may call logic instructions in the memory 830 to perform a method of controlling an air conditioner, the method including: acquiring the outdoor environment temperature; and if the indoor heat exchange mode receives an instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
In addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM) 830, a magnetic disk or an optical disk, and other various media capable of storing program codes.
Further, an embodiment of the present invention discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the control method of the air conditioner provided by the above-mentioned method embodiments, the method includes: acquiring the outdoor environment temperature; and if the indoor heat exchange mode receives an instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
In another aspect, embodiments of the present invention also provide a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the control method of an air conditioner provided in the above embodiments, the method including: acquiring the outdoor environment temperature; and if the indoor heat exchange mode receives an instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A method of controlling an air conditioner, comprising:
acquiring the outdoor environment temperature;
and if the indoor heat exchange mode receives an instruction of operating the differential air supply mode, adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
2. The method as claimed in claim 1, wherein the step of determining that the command for operating the differential blowing mode is received in the indoor heat exchange mode, and adjusting the operating frequency of the compressor to the differential frequency limiting frequency according to the outdoor ambient temperature and the differential blowing mode comprises:
determining that an instruction for operating a differential air supply mode is received in a refrigeration mode, and adjusting the operating frequency of a compressor to a first differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode;
or, if the heating mode receives the instruction of operating the differential air supply mode, the operating frequency of the compressor is adjusted to the second differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
3. The method of claim 2, wherein the step of adjusting the operating frequency of the compressor to a first differential frequency limit frequency based on the outdoor ambient temperature and the differential supply air mode comprises:
acquiring an initial operating frequency of a compressor;
determining a first correction coefficient according to the differential air supply mode, and determining a second correction coefficient according to the outdoor environment temperature and the differential air supply mode;
determining the first differential frequency limiting frequency according to the initial operating frequency, the first correction coefficient and the second correction coefficient;
wherein the first differential frequency limiting frequency is less than or equal to the initial operating frequency.
4. The method of claim 2, wherein the step of adjusting the operating frequency of the compressor to a second differential frequency limit frequency based on the outdoor ambient temperature and the differential blowing mode comprises:
acquiring an initial operating frequency of a compressor;
determining a third correction coefficient according to the differential air supply mode, and determining a fourth correction coefficient according to the outdoor environment temperature;
determining the second differential frequency limiting frequency according to the initial operating frequency, the third correction coefficient and the fourth correction coefficient;
wherein the second differential frequency limiting frequency is greater than or equal to the initial operating frequency.
5. The control method of an air conditioner according to claim 3 or 4, wherein the step of obtaining an initial operating frequency of the compressor further comprises:
acquiring a first frequency transmitted indoors and an outer loop temperature limiting frequency;
determining a fifth correction factor according to the outdoor environment temperature and/or the differential air supply mode;
and correcting the first frequency through the fifth correction coefficient to obtain a second frequency, and determining the smaller of the second frequency and the outer temperature limiting frequency as the initial operating frequency.
6. The method of claim 4, wherein said step of adjusting the operating frequency of the compressor to a second differential frequency limit frequency based on said outdoor ambient temperature and said differential blowing mode further comprises:
acquiring an initial opening degree of the electronic expansion valve;
determining a target opening degree of the electronic expansion valve according to the initial opening degree, the second differential frequency limiting frequency and the initial operation frequency;
and adjusting the opening degree of the electronic expansion valve to the target opening degree.
7. The method of claim 6, wherein the step of adjusting the opening degree of the electronic expansion valve to the target opening degree further comprises:
determining that the outdoor environment temperature is smaller than a first temperature threshold or larger than a second temperature threshold, and determining that the target opening degree is equal to the initial opening degree;
wherein the first temperature threshold is less than the second temperature threshold.
8. The method of claim 1, wherein the step of adjusting the operating frequency of the compressor to a differential frequency limit frequency based on the outdoor ambient temperature and the differential blowing mode further comprises:
repeating the steps every preset time interval, and re-determining the differential frequency limiting frequency.
9. A control apparatus of an air conditioner, comprising:
the acquisition module is used for acquiring the outdoor environment temperature;
and the control module is used for determining that an instruction for operating a differential air supply mode is received in an indoor heat exchange mode, and adjusting the operating frequency of the compressor to a differential frequency limiting frequency according to the outdoor environment temperature and the differential air supply mode.
10. An air conditioner characterized in that it operates to perform a control method of the air conditioner as claimed in any one of claims 1 to 8 or comprises a control device of the air conditioner as claimed in claim 9.
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| CN202211352112.4A CN115628525B (en) | 2022-10-31 | 2022-10-31 | Control method and control device of air conditioner and air conditioner |
| PCT/CN2023/094526 WO2024093194A1 (en) | 2022-10-31 | 2023-05-16 | Control method and control apparatus for air conditioner, and air conditioner |
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| WO2024093194A1 (en) * | 2022-10-31 | 2024-05-10 | 青岛海尔空调器有限总公司 | Control method and control apparatus for air conditioner, and air conditioner |
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| CN115628525B (en) | 2024-04-26 |
| WO2024093194A1 (en) | 2024-05-10 |
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