CN110410991B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN110410991B CN110410991B CN201910611200.3A CN201910611200A CN110410991B CN 110410991 B CN110410991 B CN 110410991B CN 201910611200 A CN201910611200 A CN 201910611200A CN 110410991 B CN110410991 B CN 110410991B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000009833 condensation Methods 0.000 claims abstract description 65
- 230000005494 condensation Effects 0.000 claims abstract description 40
- 230000002265 prevention Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005057 refrigeration Methods 0.000 abstract description 10
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241001274961 Rubus repens Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response 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
- F24F11/62—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
- F24F11/72—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
- F24F11/77—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 by controlling the speed of ventilators
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof. The invention aims to solve the problem that the existing anti-condensation control method cannot give consideration to both the anti-condensation effect and the refrigeration effect. To this end, the present invention provides a control method of an air conditioner, the air conditioner includes an indoor unit and an outdoor unit, the control method includes: under the condition that the air conditioner executes the anti-condensation mode, acquiring the outdoor environment temperature of the outdoor unit, the air outlet speed of the indoor unit and the current control frequency of a compressor of the outdoor unit; and adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the running frequency of the compressor in the anti-condensation mode. Compared with the direct frequency limiting mode adopted by the existing anti-condensation mode, the dynamic frequency limiting mode is adopted to give consideration to both the condensation improvement effect and the refrigeration effect.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof.
Background
The air conditioner becomes the essential life electrical apparatus of contemporary life, and in the air conditioner refrigeration process, under the great condition of air relative humidity, the air outlet position produces condensation water droplet because cold wind and hot-blast intersection easily. After dew drops are generated, the dew drops easily drop at the air outlet, the air deflector and other parts or are blown out along with the wind, so that the user experience is influenced.
The method of sweeping wind or reducing the running frequency of the compressor of the air conditioner is generally adopted in the prior art to solve the problem, but the problem of condensation cannot be thoroughly solved by sweeping wind, the frequency reduction is feasible, but the frequency of the compressor is directly reduced to a set value by the conventional frequency reduction mode, so that the condensation prevention effect is ensured, the refrigeration capacity of the air conditioner is suddenly reduced correspondingly, the comfort of a user is sacrificed, and the user experience is influenced.
Therefore, there is a need in the art for an anti-condensation control method that can solve the above-mentioned problems while ensuring the cooling effect.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, the problem that the existing anti-condensation control method cannot give consideration to both the anti-condensation effect and the refrigeration effect, the present invention provides a control method of an air conditioner, the air conditioner comprises an indoor unit and an outdoor unit, the control method comprises: under the condition that an air conditioner executes an anti-condensation mode, acquiring the outdoor environment temperature of the outdoor unit, the air outlet speed of the indoor unit and the current control frequency of a compressor of the outdoor unit; and adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the operating frequency of the compressor in the anti-condensation mode.
In a preferred technical solution of the above control method, "adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the operating frequency of the compressor in the anti-condensation mode" specifically includes: determining a frequency-limiting weight according to the outdoor environment temperature and the air outlet speed; and adjusting the current control frequency of the compressor according to the frequency limiting weight so as to obtain the operating frequency of the compressor in the anti-condensation mode.
In a preferred technical scheme of the control method, the outdoor environment temperature is pre-divided into a plurality of temperature intervals, the air outlet speed is pre-divided into a plurality of wind speed gears, a plurality of weight values are preset for the frequency limiting weight, and each weight value corresponds to a single temperature interval and a single wind speed gear respectively; the "determining the frequency-limiting weight according to the outdoor environment temperature and the air outlet speed" specifically includes: and determining a corresponding weight value according to the temperature interval in which the outdoor environment temperature falls and the wind speed gear in which the wind outlet speed falls.
In a preferred technical solution of the above control method, the outdoor environment temperature is pre-divided into a first temperature interval and a second temperature interval, and the first temperature interval is an interval in which the outdoor environment temperature is greater than a temperature threshold; the second temperature interval is an interval in which the outdoor environment temperature is less than or equal to the temperature threshold; under the condition that the wind speed gears are the same, the frequency limiting weight corresponding to the first temperature interval is smaller than the frequency limiting weight corresponding to the second temperature interval.
In a preferred embodiment of the above control method, the temperature threshold is a temperature division point of a current control frequency of the compressor at the medium and low wind speed gear.
In a preferred technical solution of the above control method, the wind outlet speed is pre-divided into a first gear, a second gear and a third gear in which the wind speed decreases sequentially, wherein the frequency limiting weights corresponding to the first gear, the second gear and the third gear decrease sequentially under the condition that the temperature intervals are the same.
In a preferred embodiment of the above control method, the control method includes: under the condition that the air conditioner meets set conditions, enabling the air conditioner to execute a condensation preventing mode; wherein the setting conditions include: the air conditioner is not in a power mode or a mute mode, and the air guide assembly of the indoor unit is in an extreme angle.
In a preferred embodiment of the control method, the setting conditions include: and the relative humidity of the indoor environment where the indoor unit is located is not less than a preset humidity threshold value.
In a preferred technical solution of the above control method, the preset humidity threshold value ranges from 75% to 85%.
The control method of the air conditioner provided by the invention takes the set conditions as the judgment conditions of the condensation risk, and judges whether the air conditioner has the condensation risk or not by judging whether the air conditioner meets the set conditions or not, so that the reliability and the accuracy of the condensation prevention control can be effectively improved. Under the condition that the air conditioner is judged to have the condensation risk, the air conditioner is enabled to execute the condensation prevention mode so as to effectively avoid the generation of condensation. In the anti-condensation mode, the control method provided by the invention integrates the currently acquired outdoor environment temperature and the air outlet speed as frequency limiting elements to limit the current control frequency of the compressor so as to obtain the operating frequency of the compressor in the anti-condensation mode. Because the current control frequency of the compressor is the compressor frequency calculated by the control unit of the air conditioner according to a plurality of parameters (such as fixed parameters of equipment, current operation parameters and the like) of the current operation state of the air conditioner, the operation state of the air conditioner is different, and the current control frequency of the compressor is also different, the operation frequency of the compressor in the anti-condensation mode of the air conditioner obtained by the frequency limiting mode is not a single fixed value, but a dynamic frequency value corresponding to the current operation state, and the dynamic frequency value can take both the anti-condensation effect and the refrigeration effect into consideration. Compared with the mode of directly reducing the frequency of the compressor to a single set value in the prior art, the control method provided by the invention adopts the dynamic frequency limiting mode, so that the condensation problem is solved, the refrigeration effect can be ensured, and the user experience is improved.
In another aspect, the present invention further provides an air conditioner, which includes a controller for executing the control method of the air conditioner. The air conditioner of the invention has all the technical effects of the control method, and the details are not repeated herein.
Drawings
An air conditioner and a control method thereof of the present invention will be described with reference to the accompanying drawings. In the drawings:
FIG. 1 is a flow chart illustrating a control method of an air conditioner according to the present invention;
fig. 2 is a flowchart illustrating step S30 according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the steps of the method of the present invention are described herein in a particular order, these orders are not limiting, and one skilled in the art may perform the steps in a different order without departing from the underlying principles of the invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, fig. 1 is a flow chart illustrating a control method of an air conditioner according to the present invention. The air conditioner of the present invention includes an indoor unit and an outdoor unit, and as shown in fig. 1, the control method of the present invention mainly includes:
step S10: and under the condition that the air conditioner meets the set conditions, the air conditioner is enabled to execute the condensation preventing mode.
The set condition is a judgment condition for judging whether the air conditioner has a condensation risk, and the air conditioner is judged to have the condensation risk under the condition that the air conditioner meets the set condition, and at the moment, the air conditioner needs to be correspondingly enabled to execute a condensation prevention mode so as to avoid the generation of condensation.
Step S20: under the condition that the air conditioner executes the anti-condensation mode, the outdoor environment temperature of the outdoor unit, the air outlet speed of the indoor unit and the current control frequency of the compressor are obtained.
It should be noted that the current control frequency of the compressor can be interpreted as: the control unit of the air conditioner calculates the compressor frequency according to a plurality of parameters of the air conditioner (such as fixed parameters of equipment, current operation parameters and the like). In different operation states, the parameters of the air conditioner are different, the current control frequency of the compressor calculated by the control unit of the air conditioner is also different, and the operation frequency of the compressor is the current control frequency of the compressor under the condition of no frequency limit condition.
Step S30: and adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the running frequency of the compressor in the anti-condensation mode.
The advantage of above-mentioned setting lies in: the control method accurately judges whether the air conditioner has the condensation risk or not by judging whether the air conditioner meets the set conditions or not, and improves the reliability and the accuracy of the condensation prevention control. And when the air conditioner meets the set condition, namely the air conditioner has the condensation risk currently, the air conditioner is enabled to execute the condensation prevention mode to eliminate the condensation risk. In the anti-condensation mode, the control method provided by the invention adjusts the current control frequency of the compressor by taking the currently acquired outdoor environment temperature and the currently acquired air outlet speed as frequency limiting elements comprehensively so as to obtain the operating frequency of the compressor in the anti-condensation mode. The current control frequency of the compressor is the compressor frequency calculated by the control unit of the air conditioner according to the current running state of the air conditioner, the running states of the air conditioner are different, and the current control frequency of the compressor is also different, so that the running frequency of the compressor in the condensation preventing mode of the air conditioner obtained by the frequency limiting mode is not a single fixed value but a dynamic frequency value corresponding to the current running state, when the compressor of the air conditioner runs at the dynamic frequency value, the air conditioner can ensure the refrigerating effect, the air outlet temperature of the air outlet can be higher than the dew point temperature of the air in the current indoor environment, and the possibility that the air deflector generates condensation is avoided. Compared with the mode of directly reducing the frequency of the compressor to a single set value in the prior art, the control method provided by the invention adopts the dynamic frequency limiting mode, so that the condensation problem is solved, the refrigeration effect can be ensured, and the user experience is improved.
In a preferred embodiment, the setting of the condition includes:
the air conditioner needs to satisfy the following conditions at the same time:
1) the air conditioner is not in the power mode or the mute mode.
2) The air guide assembly of the indoor unit is at an extreme angle.
With respect to condition 1), the existing air conditioner is generally provided with a plurality of operation modes including both a standard mode, such as a general heating/heating mode, a blowing mode, etc., and a special mode in response to a customer's special demand. Common special modes include a power mode or a mute mode. Taking the powerful mode as an example, the output power of the powerful mode is greater than that of the standard mode, the output power represents the refrigerating and heating capacity of the air conditioner or the refrigerating and heating capacity in unit time, and the air conditioner can quickly realize refrigerating or heating in the powerful mode. When the user selects the powerful mode to cool, the first purpose of the user is to quickly reduce the indoor temperature, and at the moment, if the air conditioner enters the condensation prevention mode, the cooling capacity of the air conditioner is reduced, so that the original intention of the user for selecting the powerful mode is violated, and the user experience is influenced. In view of this, since the power mode or the mute mode corresponds to the special requirements of the user, there is no need to consider the problem of condensation in the power mode or the mute mode.
Regarding condition 2), the air guide assembly of the existing indoor unit generally includes a horizontal guide plate and a left/right swinging blade, and taking the indoor unit having the horizontal guide plate and the left/right swinging blade as an example, the air guide assembly at an extreme angle can be understood as: the left/right swinging blade of the indoor unit is at the maximum angle of left/right swinging, and the horizontal guide plate is at the maximum angle of upward swinging or downward swinging. It should be noted here that, for an indoor unit having a horizontal guide plate and left/right swing vanes, as long as one of the left/right swing vanes or the horizontal guide plate is at an extreme angle, it can be regarded as satisfying the condition 2).
It should be noted that the air conditioner of the present invention may be a conventional air conditioner model, such as a wall-mounted air conditioner, or may be other special models. The air supply structure can be different due to different models of air conditioners, the definition of the limit angle is specific to most conventional models, but the air conditioner of the invention at the limit angle can be understood as follows in a broad sense: the air deflector is at the angle with the largest resistance to the wind flow.
Under the condition that the air guide assembly is at an extreme angle, because the resistance of the air guide plate to air outlet is maximum at the moment, according to the adjusting mechanism of the existing air conditioner, the air conditioner can correspondingly reduce the air outlet quantity and increase the frequency of a compressor so as to reduce the air outlet temperature, and the air outlet temperature is too low so that a larger condensation risk exists, so that the air guide plate mainly aims at solving the problem that the air guide plate in an air-conditioning refrigeration mode maintains condensation at the extreme angle for a long time.
Further, for an air conditioner provided with a humidity sensor, the setting conditions are:
the air conditioner needs to satisfy the condition 3) while satisfying the above conditions 1) and 2), wherein the condition 3) is: the indoor relative humidity is higher than the preset humidity threshold value. After long-time research and experiments of the inventor, the ultimate relative humidity of the condensation risk is generally concentrated in a range of 75% to 85% for different machine types, that is, under the condition that the indoor relative humidity is higher than the ultimate humidity, the air guide assembly of the indoor unit of the air conditioner is easy to generate condensation. In view of this, the preset humidity threshold preferably ranges from 75% to 85%.
Referring next to fig. 2, fig. 2 is a flowchart illustrating step S30 according to an embodiment of the present invention. As shown in fig. 2, in a preferred embodiment, step S30 specifically includes:
step S310: and determining the frequency-limiting weight according to the outdoor environment temperature and the air outlet speed.
Step S320: and adjusting the current control frequency of the compressor according to the frequency limiting weight to obtain the operating frequency of the compressor in the anti-condensation mode.
The frequency limiting weight may be determined in various ways, preferably, the outdoor environment temperature is pre-divided into a plurality of temperature intervals, the air outlet speed is pre-divided into a plurality of wind speed gears, the frequency limiting weight is preset with a plurality of weight values, and each weight value corresponds to a single temperature interval and a single wind speed gear respectively. After the outdoor environment temperature and the air outlet speed are obtained, the corresponding weight value is determined according to the temperature interval in which the outdoor environment temperature falls and the wind speed gear in which the wind speed falls.
As a specific example, the outdoor ambient temperature is pre-divided into a first temperature interval and a second temperature interval, wherein the first temperature interval is an interval in which the outdoor ambient temperature is greater than a temperature threshold; the second temperature interval is an interval in which the outdoor environment temperature is less than or equal to the temperature threshold. Preferably, the temperature threshold is a temperature division point of the current control frequency of the compressor at the medium and low wind speed gears, specifically, one temperature division point is pre-stored in the control program of the existing air conditioner, and in the case of calculating the current control frequency of the compressor, the medium and low wind speed gears correspond to different current control frequencies in the case of being higher than the temperature division point or lower than the temperature division point. Therefore, the value of the temperature division point of the current control frequency of the original compressor at the middle and low wind speed gears, which is prestored in the control unit of the air conditioner, can be directly called as the temperature threshold value of the invention. As for most models, the pre-stored temperature cut-off is typically 29 ℃, and in view of this, the temperature threshold may be set to 29 ℃. The air outlet speed is pre-divided into a first gear, a second gear and a third gear, wherein the air speed is reduced in sequence, the first gear is a high-wind gear, the first gear is a medium-wind gear, and the third gear is a low-wind gear. The following table 1 was formed according to the above settings.
TABLE 1
If the detected outdoor environment temperature is 27 ℃ and the air outlet speed of the indoor unit falls into the high wind gear, the frequency limiting weight can be determined to be 0.95 according to the mapping relationship between the outdoor environment temperature and the air outlet gear in the table 1. And then multiplying the control frequency of the compressor calculated from the control system by the frequency limiting weight to obtain the operating frequency of the compressor in the anti-condensation mode.
Considering that the condensation phenomenon of the air outlet of the air conditioner is the result of the comprehensive influence of the wind speed field and the temperature field, when the wind speed is increased, the evaporation speed of the condensed water is increased, and the condensed water is dispersed before the condensation time, so that the phenomenon that the condensed water drops down can be relieved. Therefore, the frequency limiting weight is set according to a rule that the higher the wind speed is, the larger the frequency limiting weight is, and it can be seen by combining table 1 above that, under the condition that the temperature intervals are the same, the values of the frequency limiting weights corresponding to the high wind gear, the medium wind gear and the low wind gear are sequentially reduced. The higher the outdoor environment temperature is, the higher the current control frequency of the compressor calculated by the control unit is, the higher the condensation risk is, that is, the higher the outdoor environment temperature is, the higher the frequency limiting strength of the control frequency of the compressor needs to be, therefore, under the condition that the wind speed gear is the same, the value of the frequency limiting weight corresponding to the first temperature interval is smaller than the value of the frequency limiting weight corresponding to the second temperature interval.
It can be seen that under the condition that the indoor unit has the condensation risk, the invention comprehensively considers the influence of the outdoor environment temperature and the air outlet speed of the indoor unit on the condensation phenomenon of the air guide assembly, determines the frequency limiting weight by taking the outdoor environment temperature and the air outlet speed of the indoor unit as consideration elements, and then reduces the current control frequency of the compressor according to the frequency limiting weight to obtain the operating frequency in the condensation prevention mode, thereby ensuring the refrigeration effect and reducing the condensation risk.
It should be noted that the division of the outdoor environment temperature and the air-out speed is not limited to the above example, and those skilled in the art can reasonably set the mapping relationship between the outdoor environment temperature, the air-out temperature and the frequency-limiting weight according to the actual application scenario. In addition, the method of adjusting the current control frequency of the compressor by the outdoor environment temperature and the air outlet speed is not limited to the above example, and those skilled in the art can reasonably set the adjustment method of the current control frequency of the compressor according to actual requirements.
It will be understood by those skilled in the art that the air conditioner obviously includes other parts and structures besides the parts of the air conditioner described above, and although not described in the embodiment, the parts should be understood according to the shapes and features of the air conditioner in the prior art, and the shapes and features should not be construed as limiting the present invention. For example, the outdoor unit of the air conditioner further includes an evaporator, a condenser, and the like.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (7)
1. A control method of an air conditioner, the air conditioner comprising an indoor unit and an outdoor unit, the control method comprising:
under the condition that an air conditioner executes an anti-condensation mode, acquiring the outdoor environment temperature of the outdoor unit, the air outlet speed of the indoor unit and the current control frequency of a compressor of the outdoor unit;
adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the operating frequency of the compressor in the anti-condensation mode;
the "adjusting the current control frequency of the compressor according to the outdoor environment temperature and the air outlet speed to obtain the operating frequency of the compressor in the anti-condensation mode" specifically includes: determining a frequency-limiting weight according to the outdoor environment temperature and the air outlet speed; adjusting the current control frequency of the compressor according to the frequency limiting weight to obtain the operating frequency of the compressor in the condensation prevention mode;
the outdoor environment temperature is pre-divided into a plurality of temperature intervals, the air outlet speed is pre-divided into a plurality of wind speed gears, a plurality of weight values are preset for the frequency limiting weight, and each weight value corresponds to a single temperature interval and a single wind speed gear respectively; the "determining the frequency-limiting weight according to the outdoor environment temperature and the air outlet speed" specifically includes: determining a corresponding weight value according to a temperature interval in which the outdoor environment temperature falls and a wind speed gear in which the wind outlet speed falls;
the outdoor ambient temperature is pre-divided into a first temperature interval and a second temperature interval,
the first temperature interval is an interval in which the outdoor environment temperature is greater than a temperature threshold value; the second temperature interval is an interval in which the outdoor environment temperature is less than or equal to the temperature threshold;
under the condition that the wind speed gears are the same, the frequency limiting weight corresponding to the first temperature interval is smaller than the frequency limiting weight corresponding to the second temperature interval.
2. The control method according to claim 1, wherein the temperature threshold is a temperature division point of a current control frequency of the compressor in the middle and low wind speed gear.
3. The control method according to claim 1, wherein the wind outlet speed is pre-divided into a first gear, a second gear, and a third gear in which the wind speed decreases in sequence,
wherein, under the condition that the temperature intervals are the same, the frequency limiting weights corresponding to the first gear, the second gear and the third gear are sequentially reduced.
4. The control method according to any one of claims 1 to 3, characterized by comprising:
under the condition that the air conditioner meets set conditions, enabling the air conditioner to execute a condensation preventing mode;
wherein the setting conditions include:
the air conditioner is not in a power mode or a mute mode, and the air guide assembly of the indoor unit is in an extreme angle.
5. The control method according to claim 4, wherein the setting of the condition further includes: and the relative humidity of the indoor environment where the indoor unit is located is not less than a preset humidity threshold value.
6. The control method of claim 5, wherein the preset humidity threshold value ranges from 75% to 85%.
7. An air conditioner characterized by comprising a controller for executing the control method according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611200.3A CN110410991B (en) | 2019-07-08 | 2019-07-08 | Air conditioner and control method thereof |
| PCT/CN2020/100656 WO2021004453A1 (en) | 2019-07-08 | 2020-07-07 | Air conditioner and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611200.3A CN110410991B (en) | 2019-07-08 | 2019-07-08 | Air conditioner and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410991A CN110410991A (en) | 2019-11-05 |
| CN110410991B true CN110410991B (en) | 2021-08-27 |
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| CN110410991B (en) * | 2019-07-08 | 2021-08-27 | 重庆海尔空调器有限公司 | Air conditioner and control method thereof |
| CN113915755B (en) * | 2020-07-07 | 2023-03-10 | 广东美的制冷设备有限公司 | Refrigeration operation control method of air conditioner, air conditioner and readable storage medium |
| CN113124536B (en) * | 2021-04-30 | 2022-06-14 | 珠海格力电器股份有限公司 | Anti-condensation control method and device for air conditioner, air conditioner and storage medium |
| CN114322246B (en) * | 2021-12-09 | 2024-08-16 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner, air conditioner and storage medium |
| CN114413438B (en) * | 2021-12-20 | 2024-01-16 | 青岛海尔空调器有限总公司 | Air conditioner control method and device and air conditioner |
| CN115031342B (en) * | 2022-07-11 | 2023-11-17 | 珠海格力电器股份有限公司 | Anti-condensation method and device for air conditioner and air conditioning system |
| CN115523642B (en) * | 2022-09-19 | 2023-10-27 | 珠海格力电器股份有限公司 | Control method, device and system of air conditioner |
| CN116026019B (en) * | 2023-02-15 | 2024-06-11 | 宁波奥克斯电气股份有限公司 | Zero-wind frequency limiting control method and device and air conditioner |
| CN117515777B (en) * | 2024-01-04 | 2024-04-05 | 珠海格力电器股份有限公司 | Condensate water prevention control method and device and air conditioning unit |
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| CN110410991A (en) | 2019-11-05 |
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Effective date of registration: 20210816 Address after: No.1 Gangcheng South Road, Jiangbei District, Chongqing, 400026 Applicant after: CHONGQING HAIER AIR-CONDITIONER Co.,Ltd. Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: Haier Smart Home Co., Ltd. |
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