CN115200091B - Indoor unit of air conditioner and condensation prevention control method - Google Patents
Indoor unit of air conditioner and condensation prevention control method Download PDFInfo
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- CN115200091B CN115200091B CN202210886077.8A CN202210886077A CN115200091B CN 115200091 B CN115200091 B CN 115200091B CN 202210886077 A CN202210886077 A CN 202210886077A CN 115200091 B CN115200091 B CN 115200091B
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- 238000009833 condensation Methods 0.000 title claims abstract description 73
- 230000005494 condensation Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000002265 prevention Effects 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000004378 air conditioning Methods 0.000 claims description 16
- 230000003405 preventing effect Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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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
- F24F2110/20—Humidity
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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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an air conditioner indoor unit and a condensation prevention control method, wherein the air conditioner indoor unit comprises: the indoor unit comprises an indoor unit shell, wherein an air outlet and a fresh air outlet are formed in the indoor unit shell, the fresh air outlet and the air outlet are arranged at intervals along the height direction of the indoor unit shell, at least two air outlets are formed, and at least two air outlets are arranged side by side; the number of the fresh air outlets is at least two, and the at least two fresh air outlets are arranged side by side; the at least two air outlets are arranged in one-to-one correspondence with the at least two fresh air outlets, and the fresh air outlets are arranged in one-to-one correspondence with the air outlets; the humidity detection piece is used for detecting indoor humidity; when the humidity detection part detects that the humidity reaches the condensation preset humidity, at least one of the at least two fresh air outlets and at least one of the at least two air outlets are staggered and opened. By the technical scheme provided by the application, the technical problem that condensation is easy to occur when fresh air is introduced in the prior art can be solved.
Description
Technical Field
The application relates to the technical field of anti-condensation of an air conditioner indoor unit, in particular to an air conditioner indoor unit and an anti-condensation control method.
Background
At present, in order to improve user comfort, a fresh air function is often added on an indoor unit of an air conditioner, so that outdoor fresh air is provided for the indoor through the fresh air function, and the indoor air quality is improved.
However, due to the influence of indoor and outdoor temperature difference and indoor humidity, condensation occurs when cold and hot air meet when fresh air is introduced, and even the air deflector drips, so that the use comfort of a user is influenced.
Disclosure of Invention
The application mainly aims to provide an air conditioner indoor unit and an anti-condensation control method, which are used for solving the technical problem that condensation is easy to occur when fresh air is introduced in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided an air conditioner indoor unit comprising: the indoor unit comprises an indoor unit shell, wherein an air outlet and a fresh air outlet are formed in the indoor unit shell, the fresh air outlet and the air outlet are arranged at intervals along the height direction of the indoor unit shell, at least two air outlets are formed, and at least two air outlets are arranged side by side; the number of the fresh air outlets is at least two, and the at least two fresh air outlets are arranged side by side; the at least two air outlets are arranged in one-to-one correspondence with the at least two fresh air outlets, and the fresh air outlets are arranged in one-to-one correspondence with the air outlets; the humidity detection piece is used for detecting indoor humidity; when the humidity detection part detects that the humidity reaches the condensation preset humidity, at least one of the at least two fresh air outlets and at least one of the at least two air outlets are staggered and opened.
Further, the air conditioner indoor unit further includes: the first air deflector is rotatably arranged at the air outlet; the second air deflector is rotatably arranged at the fresh air outlet; the control piece, the humidity detection piece, the driving part of the first air deflector and the driving part of the second air deflector are all connected with the control piece, so that the control piece can control the movement of the first air deflector and the second air deflector according to the humidity detected by the humidity detection piece.
Further, the air outlet comprises a first air outlet and a second air outlet, the fresh air outlet comprises a first fresh air outlet and a second fresh air outlet, the first fresh air outlet is arranged corresponding to the first air outlet, and the first fresh air outlet is arranged corresponding to the second air outlet; when the humidity detection part detects that the humidity reaches the condensation preset humidity, the control part controls the first air deflector at the first air outlet and the second air deflector at the second fresh air outlet to be opened, and controls the first air deflector at the second air outlet and the second air deflector at the first fresh air outlet to be closed; or the control piece controls the first air deflector at the first air outlet and the second air deflector at the second fresh air outlet to be closed, and controls the first air deflector at the second air outlet and the second air deflector at the first fresh air outlet to be opened.
Further, the air outlet extends along the height direction of the indoor unit shell, and the fresh air outlet is positioned below the air outlet.
According to another aspect of the present application, there is provided an anti-condensation control method, which is applicable to the above-provided indoor unit of an air conditioner, and includes:
acquiring indoor humidity, and comparing the acquired indoor humidity with condensation preset humidity;
when the indoor humidity is greater than or equal to the condensation preset humidity, controlling at least two fresh air outlets of the air conditioner indoor unit and at least two air outlets of the air conditioner indoor unit to be opened in a staggered mode, so that the at least two fresh air outlets and the at least two air outlets are staggered to discharge air;
when the indoor humidity is less than the condensation preset humidity, controlling at least two fresh air outlets and at least two air outlets to normally discharge air.
Further, the method for controlling the staggered opening of the at least two fresh air outlets of the air conditioner indoor unit and the at least two air outlets of the air conditioner indoor unit comprises the following steps:
at least one air outlet of the at least two air outlets and at least one fresh air outlet of the at least two fresh air outlets are controlled to be staggered to form air outlets, and the rest of the at least two air outlets and the rest of the at least two fresh air outlets are controlled to be closed;
after a first preset time period, controlling at least one air outlet of the at least two air outlets and at least one fresh air outlet of the at least two fresh air outlets to be closed, and controlling the rest air outlets of the at least two air outlets and the rest fresh air outlets of the at least two fresh air outlets to be staggered for air outlet;
the cycle is performed according to the above-described alternate opening method.
Further, after the at least two fresh air outlets of the air conditioner indoor unit and the at least two air outlets of the air conditioner indoor unit are controlled to be opened in a staggered manner, the condensation prevention control method further comprises the following steps:
after a second preset time period, acquiring indoor humidity;
and comparing the indoor humidity with the condensation preset humidity, and controlling the air outlet conditions of at least two fresh air outlets and at least two air outlets according to the comparison result.
Further, the method for controlling the air outlet conditions of the at least two fresh air outlets and the at least two air outlets according to the comparison result comprises the following steps:
when the indoor humidity is greater than or equal to the condensation preset humidity, controlling the rotation speed of a main air duct of the air conditioner indoor unit to be reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or controlling the compressor frequency of the air conditioner indoor unit to be reduced.
Further, the rotating speed of the main air duct of the indoor unit of the control air conditioner is reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or, after the compressor frequency of the indoor unit of the air conditioner is controlled to be reduced, the anti-condensation control method further comprises the following steps:
after a third preset time period, acquiring indoor humidity;
and comparing the indoor humidity with the condensation preset humidity, and controlling the fresh air fan to stop working and controlling the main air duct and the compressor to work normally when the indoor humidity is greater than or equal to the condensation preset humidity.
Further, the indoor unit of the air conditioner further comprises:
and controlling the first air deflectors at the at least two air outlets to be fully opened, and controlling the second air deflectors at the at least two fresh air outlets to be fully opened.
By applying the technical scheme of the application, when the humidity detection part detects that the humidity reaches the condensation preset humidity, at least one fresh air outlet of the at least two fresh air outlets and at least one air outlet of the at least two air outlets are staggered to be opened, so that the air flowing out of the air outlets is prevented from being intersected with the air flowing out of the fresh air outlets, and the condition that the cold air and the hot air are intersected to easily cause condensation is further reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 illustrates a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an alternate air outlet mode of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another staggered air outlet mode of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 4 illustrates a top view of an air conditioner indoor unit provided according to an embodiment of the present application;
fig. 5 shows a flow chart of a control method for preventing condensation provided according to an embodiment of the application.
Wherein the above figures include the following reference numerals:
10. an indoor unit casing; 11. an air outlet; 111. a first air outlet; 112. a second air outlet; 12. a fresh air outlet; 121. a first fresh air outlet; 122. a second fresh air outlet;
21. a first air deflector; 22. and the second air deflector.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 4, a first embodiment of the present application provides an indoor unit of an air conditioner, which includes an indoor unit housing 10 and a humidity detecting member, wherein an air outlet 11 and a fresh air outlet 12 are provided on the indoor unit housing 10, the fresh air outlet 12 and the air outlet 11 are arranged at intervals along the height direction of the indoor unit housing 10, at least two air outlets 11 are arranged side by side (here, the side by side arrangement means that the air outlets 11 are arranged at intervals along the horizontal direction or along an extending direction forming a small angle (the small angle may be less than or equal to 15 °) with the horizontal direction. The number of the fresh air outlets 12 is at least two, and the at least two fresh air outlets 12 are arranged side by side; the at least two air outlets 11 are arranged in one-to-one correspondence with the at least two fresh air outlets 12, and the fresh air outlets 12 are arranged in one-to-one correspondence with the air outlets 11. The humidity detection piece is used for detecting indoor humidity; when the humidity detecting member detects that the humidity reaches the condensation preset humidity, at least one fresh air outlet 12 of the at least two fresh air outlets 12 and at least one air outlet 11 of the at least two air outlets 11 are staggered and opened.
By adopting the structure, when the humidity detection part detects that the humidity reaches the condensation preset humidity, at least one fresh air outlet 12 of the at least two fresh air outlets 12 and at least one air outlet 11 of the at least two air outlets 11 are staggered to be opened, so that the air flowing out of the air outlets 11 is prevented from being intersected with the air flowing out of the fresh air outlets 12, and the condition that the cold air and the hot air are intersected to easily cause condensation is further reduced. And when humidity that humidity detection spare detected is less than the condensation and presets humidity, air outlet 11 and new trend export 12 all can normally go out the wind, can be convenient for like this make the wind of air outlet 11 department carry new trend export 12 to the farther distance of sending, increased the air supply distance of new trend, also be convenient for better carrying out the operation of changing fresh air indoor, promote indoor air quality.
It should be noted that the fresh air outlet 12 and the corresponding air outlet 11 may be divided into a set of air outlet structures, and at least two sets of air outlet structures are disposed on the indoor unit casing 10. In the "at least one fresh air outlet 12 of the at least two fresh air outlets 12 and at least one air outlet 11 of the at least two air outlets 11 are opened in a staggered manner", the staggered opening means that the fresh air outlets 12 in a group of air outlet structures and the air outlets 11 in the group of air outlet structures cannot be opened at the same time, so that the condition that the group of air outlet structures are exposed due to the fact that the fresh air outlets 12 and the air outlets 11 are opened at the same time can be effectively avoided.
In this embodiment, the indoor unit of the air conditioner further includes a first air deflector 21, a second air deflector 22, and a control member, and the first air deflector 21 is rotatably disposed at the air outlet 11. A second air deflector 22 is rotatably arranged at the fresh air outlet 12; the humidity detecting member, the driving part of the first air deflector 21 and the driving part of the second air deflector 22 are all connected with the control member, so that the control member controls the movement of the first air deflector 21 and the second air deflector 22 according to the humidity detected by the humidity detecting member. By adopting the structure, the control of the control piece to the first air deflector and the second air deflector 22 can facilitate the dislocation air outlet or the normal air outlet of the air port 11 and the fresh air port. Specifically, when the control member controls the first air deflector 21 to be closed, the corresponding air outlet 11 is closed; when the control piece controls the first air deflector 21 to open, the first air deflector 21 rotates to open, and the wind at the air outlet 11 can be guided by changing the rotation angle of the first air deflector 21. When the control piece controls the second air deflector 22 to be closed, the corresponding fresh air outlet 12 is closed; when the control piece controls the second air deflector 22 to open, the second air deflector 22 rotates to open, and the wind at the fresh air outlet 12 can be guided by changing the rotation angle of the second air deflector 22.
Specifically, the air outlet 11 in the present embodiment includes a first air outlet 111 and a second air outlet 112, the fresh air outlet 12 includes a first fresh air outlet 121 and a second fresh air outlet 122, the first fresh air outlet 121 is disposed corresponding to the first air outlet 111, and the first fresh air outlet 121 is disposed corresponding to the second air outlet 112. When the humidity detection part detects that the humidity reaches the condensation preset humidity, the control part controls the first air deflector 21 at the first air outlet 111 and the second air deflector 22 at the second fresh air outlet 122 to be opened, and controls the first air deflector 21 at the second air outlet 112 and the second air deflector 22 at the first fresh air outlet 121 to be closed; or the control piece controls the first air deflector 21 at the first air outlet 111 and the second air deflector 22 at the second fresh air outlet 122 to be closed, and controls the first air deflector 21 at the second air outlet 112 and the second air deflector 22 at the first fresh air outlet 121 to be opened. By adopting the arrangement, the staggered air outlet mode of heat exchange air outlet and fresh air outlet of the air conditioner indoor unit can be conveniently and effectively realized, so that the condensation phenomenon is effectively reduced.
In this embodiment, the air outlet 11 extends along the height direction of the indoor unit casing 10, and the fresh air outlet 12 is located below the air outlet 11. By adopting the structural layout, the fresh air outlet 12 can be conveniently blown to a longer blowing distance through the wind at the air outlet 11 during normal air outlet, the blowing distance of fresh air is improved, and the fresh air exchanging effect is improved.
Specifically, the indoor unit of the air conditioner in this embodiment is mainly a cabinet air conditioner with a fresh air outlet 12 and an air outlet 11 close to each other and having double air outlets, and the fresh air outlet 12 and the air outlet 11 are located on the same side of the indoor unit casing 10. When fresh air is started, the first air guide plate 21 and the second air guide plate 22 move normally, and the principle of condensation prevention logic is combined, so that when a temperature and humidity probe at a fresh air port detects that the humidity reaches a condensation point preset value, the first air guide plate 21 and the second air guide plate 22 can operate independently, the first air guide plate 21 and the second air guide plate 22 are started in a dislocation mode to operate or the fresh air is stopped, and the power and the rotation speed are correspondingly reduced by combining a compressor, a main fan and a fresh air fan, so that the cold and hot air intersection degree is effectively reduced, and the condensation phenomenon is effectively reduced.
As shown in fig. 5. The second embodiment of the present application provides an anti-condensation control method, which is applicable to the air conditioner indoor unit provided above, and includes: acquiring indoor humidity, and comparing the acquired indoor humidity with condensation preset humidity; when the indoor humidity is greater than or equal to the condensation preset humidity, controlling at least two fresh air outlets 12 of the air conditioner indoor unit and at least two air outlets 11 of the air conditioner indoor unit to be staggered and opened so that the at least two fresh air outlets 12 and the at least two air outlets 11 are staggered and air is discharged; when the indoor humidity is less than the condensation preset humidity, controlling at least two fresh air outlets 12 and at least two air outlets 11 to normally discharge air. By adopting the method, when the indoor humidity is greater than or equal to the condensation preset humidity, the air outlet mode of heat exchange air outlet and fresh air outlet staggered air outlet can be conveniently realized by selectively opening at least two fresh air outlets 12 and selectively opening at least two air outlets 11, and the condensation phenomenon is effectively reduced.
Specifically, the method for controlling the staggered opening of the at least two fresh air outlets 12 of the air conditioning indoor unit and the at least two air outlets 11 of the air conditioning indoor unit in the embodiment includes: at least one air outlet 11 of the at least two air outlets 11 and at least one fresh air outlet 11 of the at least two fresh air outlets 12 are controlled to be staggered to air-out, and the rest of the air outlets 11 of the at least two air outlets 11 and the rest of the fresh air outlets 12 of the at least two fresh air outlets 12 are controlled to be closed; after a first preset period of time (herein, "after the first preset period of time" means "stagger air-out at least one air outlet 11 of the at least two air outlets 11 and at least one air outlet 11 of the at least two air outlets 12, and control the remaining air outlets 11 of the at least two air outlets 11 and the remaining air outlets 12 of the at least two air outlets 12 to close after the first preset period of time"), control the at least one air outlet 11 of the at least two air outlets 11 and the at least one air outlet 11 of the at least two air outlets 12 to close, and control the remaining air outlets 11 of the at least two air outlets 11 and the remaining air outlets 12 of the at least two air outlets 12 to stagger air-out; the cycle is performed according to the above-described alternate opening method. By adopting the method, different air outlets 11 and different fresh air outlets 11 can be conveniently alternated with air outlets on the basis of staggered air outlets in turn, the condition that the air outlets are limited is avoided, and the uniformity of indoor temperature is improved.
It should be noted that, herein, "the method of opening alternately" specifically means: a: at least one air outlet 11 of the at least two air outlets 11 and at least one fresh air outlet 11 of the at least two fresh air outlets 12 are controlled to be staggered to air-out, and the rest of the air outlets 11 of the at least two air outlets 11 and the rest of the fresh air outlets 12 of the at least two fresh air outlets 12 are controlled to be closed; b: after maintaining the first preset duration of the step a, controlling at least one air outlet 11 of the at least two air outlets 11 and at least one fresh air outlet 11 of the at least two fresh air outlets 12 to be closed, and controlling the rest of the air outlets 11 of the at least two air outlets 11 and the rest of the fresh air outlets 12 of the at least two fresh air outlets 12 to be staggered for air outlet; c, after maintaining the first preset time length of the step B, executing the step A; … …; alternate opening is performed in the order A, B, A, B … … described above.
In this embodiment, after the at least two fresh air outlets 12 of the air conditioning indoor unit and the at least two air outlets 11 of the air conditioning indoor unit are controlled to be opened in a staggered manner, the anti-condensation control method further includes: after a second preset time period (herein, "after the second preset time period" means "after the second preset time period in which the at least two fresh air outlets 12 of the air conditioning indoor unit and the at least two air outlets 11 of the air conditioning indoor unit are staggered and opened"), obtaining indoor humidity; the indoor humidity is compared with the condensation preset humidity, and the air outlet conditions of the at least two fresh air outlets 12 and the at least two air outlets 11 are controlled according to the comparison result. By adopting the method, whether the indoor humidity is improved or not can be conveniently and rapidly obtained, and the air outlet 11 and the fresh air outlet 12 are adaptively controlled according to the change condition of the indoor humidity.
Specifically, the method for controlling the air outlet conditions of the at least two fresh air outlets 12 and the at least two air outlets 11 according to the comparison result in this embodiment includes: when the indoor humidity is greater than or equal to the condensation preset humidity, controlling the rotation speed of a main air duct of the air conditioner indoor unit to be reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or controlling the compressor frequency of the air conditioner indoor unit to be reduced. By adopting the method, under the condition that the indoor humidity is difficult to drop, the condensation is better avoided by adjusting the rotating speed of the fan blade of the main air duct of the air conditioner indoor unit and/or the rotating speed of the fresh air fan and/or the frequency of the compressor, and the condensation prevention effect is improved.
In the embodiment, the rotation speed of the main air duct of the indoor unit of the control air conditioner is reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or, after the compressor frequency of the indoor unit of the air conditioner is controlled to be reduced, the anti-condensation control method further comprises the following steps: after a third preset time period (the rotation speed of the main air duct of the indoor unit of the air conditioner can be controlled to be reduced, and/or the rotation speed of the new fan of the indoor unit of the air conditioner can be controlled to be reduced, and/or the frequency of the compressor of the indoor unit of the air conditioner is controlled to be reduced) is defined as a step Y, and after the third preset time period, the indoor humidity is obtained after the third preset time period executed in the step Y; and comparing the acquired indoor humidity with the condensation preset humidity, and controlling the fresh air fan to stop working and controlling the main air duct and the compressor to work normally when the indoor humidity is greater than or equal to the condensation preset humidity. By adopting the setting method, when the indoor humidity and the difficulty in reducing the indoor humidity, the fresh air fan can be directly closed, so that the fresh air quantity is reduced from the source, and the condensation prevention effect is better achieved.
Specifically, the indoor unit of an air conditioner in this embodiment is the indoor unit of an air conditioner provided above, and after the fresh air fan is controlled to stop working, the anti-condensation control method further includes: the first air deflector 21 at the at least two air outlets 11 is controlled to be fully opened, and the second air deflector 22 at the at least two fresh air outlets 12 is controlled to be fully opened. By adopting the method, after the fresh air fan stops working, the fresh air quantity is rapidly reduced at the moment, so that condensation can be effectively prevented, the air conditioner indoor unit can be conveniently in a normal running state as soon as possible by opening all the first air deflectors 21 and all the second air deflectors 22, and the normal temperature regulation effect is ensured.
Specifically, the anti-condensation logic in the present embodiment is executed as follows:
the humidity sensing device (humidity detection piece) is combined to optimize, the anti-condensation logic is started when the indoor and outdoor humidity meets a preset value, the influence of the motion of the air deflector to a non-centering horizontal state in a low humidity environment on the air supply quantity is avoided, and therefore the applicability of the anti-condensation logic and the comfort of user experience are greatly improved.
When the detected humidity reaches a predetermined value (the first detection is started after the fresh air is started for the first time and runs for 30min, and the preset values are different according to the refrigerating and heating modes), and the refrigerating/heating mode starts the fresh air, the second air deflector 22 and the first air deflector 21 run in a staggered manner, and the main air duct rotation speed reduction, the fresh air rotation speed reduction or both of them can be further executed, and the fresh air fan shutdown is further executed: the method comprises the following steps that A, opening and closing the left side of a main air duct air deflector, and opening the left side and the right side of a fresh air deflector; B. after 5min of operation, executing the left closing and the right opening of the air deflector of the main air duct, and executing the left opening and the right closing of the second air deflector 22; C. after 5min of operation, repeatedly executing the instruction A; D. after the execution starts to 20min, re-detecting whether the temperature and the humidity reach a preset value; if not, recovering the normal operation of the air conditioner; if yes, executing an E instruction; E. executing the instruction A, and simultaneously reducing the rotating speed of the main air duct or the fresh air or both, and reducing the frequency of the compressor; F. executing the instruction B, and simultaneously reducing the rotating speed of the main air duct or the fresh air or both, and reducing the frequency of the compressor; G. repeatedly executing the E instruction after running for 5 min; H. after the execution starts to 20min, re-detecting whether the temperature and humidity reach a preset value (the re-timing of the last detection time is right); if not, recovering the normal operation of the air conditioner; if yes, executing an I instruction; I. the main air duct and the fresh air duct air deflectors are opened, and after the fresh air duct is closed for 20min, whether the temperature and the humidity reach a preset value or not is detected again; if not, the fresh air fan is started, and the air conditioner is recovered to normal operation; if yes, the fresh air fan is closed, the I instruction is executed, the I instruction is repeated three times, and the fresh air is stopped permanently until the air conditioner is restarted or the fresh air is restarted and then recovered; the detection time, the running time and the downtime are all references in the logic, so that the detection time, the running time and the downtime are convenient to understand, and the actual values are not defined by technicians according to the environmental conditions and the performance of the machine type.
The fresh air condensation prevention principle in the logic is as follows: the fresh air and the main air duct air deflector are staggered to run, so that the intersection of cold and hot air flows at two air openings is reduced, the temperature difference between the fresh air and the main air duct is reduced, and condensation can be prevented; the rotation speed of the main air duct is reduced, or the rotation speed of the fresh air is reduced, or both the rotation speed and the rotation speed of the fresh air are reduced, at the moment, the frequency of the compressor of the fresh air fan is reduced, the cold quantity output by the main air duct and the heat quantity of the fresh air are reduced, and the intersection of cold and hot air flows of two air inlets is further reduced; and finally, in order to furthest improve the condensation preventing effect, a new fan is set to stop for a period of time, so that the new air and the main air duct are directly not intersected, and the temperature difference is not existed, so that the air is not condensed.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects: the fresh air condensation problem can be avoided when the fresh air function is used by the user, and the use comfort of the user is improved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An air conditioning indoor unit, comprising:
the indoor unit comprises an indoor unit shell (10), wherein an air outlet (11) and a fresh air outlet (12) are formed in the indoor unit shell (10), the fresh air outlet (12) and the air outlet (11) are arranged at intervals along the height direction of the indoor unit shell (10), and at least two air outlets (11) are arranged side by side; the number of the fresh air outlets (12) is at least two, and the at least two fresh air outlets (12) are arranged side by side; at least two air outlets (11) are arranged in one-to-one correspondence with at least two fresh air outlets (12), and each fresh air outlet (12) is arranged in one-to-one correspondence with the air outlet (11);
the humidity detection piece is used for detecting indoor humidity;
the fresh air outlet (12) and the corresponding air outlet (11) are divided into a group of air outlet structures, and at least two groups of air outlet structures are arranged on the indoor unit shell (10); when the humidity detection part detects that the humidity reaches the condensation preset humidity, at least one fresh air outlet (12) of the at least two fresh air outlets (12) and at least one air outlet (11) of the at least two air outlets (11) are opened in a staggered mode.
2. The air conditioning indoor unit of claim 1, further comprising:
the first air deflector (21) is rotatably arranged at the air outlet (11);
the second air deflector (22) is rotatably arranged at the fresh air outlet (12);
the control piece, the humidity detection piece, the driving part of the first air deflector (21) and the driving part of the second air deflector (22) are all connected with the control piece, so that the control piece controls the movement of the first air deflector (21) and the second air deflector (22) according to the humidity detected by the humidity detection piece.
3. The indoor unit of claim 2, wherein the air outlet (11) includes a first air outlet (111) and a second air outlet (112), the fresh air outlet (12) includes a first fresh air outlet (121) and a second fresh air outlet (122), the first fresh air outlet (121) is disposed corresponding to the first air outlet (111), and the first fresh air outlet (121) is disposed corresponding to the second air outlet (112);
when the humidity detection part detects that the humidity reaches the condensation preset humidity, the control part controls a first air deflector (21) at the first air outlet (111) and a second air deflector (22) at the second fresh air outlet (122) to be opened, and controls the first air deflector (21) at the second air outlet (112) and the second air deflector (22) at the first fresh air outlet (121) to be closed; or the control piece controls the first air deflector (21) at the first air outlet (111) and the second air deflector (22) at the second fresh air outlet (122) to be closed, and controls the first air deflector (21) at the second air outlet (112) and the second air deflector (22) at the first fresh air outlet (121) to be opened.
4. An air conditioning indoor unit according to claim 1, characterized in that the air outlet (11) extends in the height direction of the indoor unit housing (10), the fresh air outlet (12) being located below the air outlet (11).
5. An anti-condensation control method, which is applicable to the air conditioning indoor unit according to any one of claims 1 to 4, comprising:
acquiring indoor humidity, and comparing the acquired indoor humidity with condensation preset humidity;
when the indoor humidity is greater than or equal to the condensation preset humidity, controlling at least two fresh air outlets of the air conditioner indoor unit and at least two air outlets of the air conditioner indoor unit to be staggered and opened so that the at least two fresh air outlets and the at least two air outlets are staggered and air-out;
when the indoor humidity is smaller than the condensation preset humidity, the at least two fresh air outlets and the at least two air outlets are controlled to normally discharge air.
6. The method of claim 5, wherein the step of controlling the staggered opening of the at least two fresh air outlets of the air conditioning indoor unit and the at least two air outlets of the air conditioning indoor unit comprises:
firstly controlling at least one air outlet of the at least two air outlets and at least one fresh air outlet of the at least two fresh air outlets to stagger and air out, and controlling the rest air outlets of the at least two air outlets and the rest fresh air outlets of the at least two fresh air outlets to be closed;
after a first preset time period, controlling at least one air outlet of the at least two air outlets and at least one fresh air outlet of the at least two fresh air outlets to be closed, and controlling the rest air outlets of the at least two air outlets and the rest fresh air outlets of the at least two fresh air outlets to be staggered for air outlet;
the cycle is performed according to the above-described alternate opening method.
7. The method according to claim 6, wherein after controlling the at least two fresh air outlets of the air conditioning indoor unit and the at least two air outlets of the air conditioning indoor unit to be opened in a staggered manner, the method further comprises:
after a second preset time period, acquiring the indoor humidity;
and comparing the indoor humidity with the condensation preset humidity, and controlling the air outlet conditions of the at least two fresh air outlets and the at least two air outlets according to the comparison result.
8. The condensation prevention control method according to claim 7, wherein the method for controlling the air outlet conditions of the at least two fresh air outlets and the at least two air outlets according to the comparison result comprises:
when the indoor humidity is greater than or equal to the condensation preset humidity, controlling the rotating speed of a main air duct of the air conditioner indoor unit to be reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or controlling the frequency of the compressor of the air conditioner indoor unit to be reduced.
9. The condensation preventing control method according to claim 8, wherein a rotation speed of a main air duct controlling the air conditioner indoor unit is reduced; and/or controlling the rotation speed of the fresh air fan of the air conditioner indoor unit to be reduced; and/or, after controlling the compressor frequency of the air conditioner indoor unit to decrease, the anti-condensation control method further comprises:
after a third preset time period, acquiring the indoor humidity;
comparing the acquired indoor humidity with the condensation preset humidity, and controlling a fresh air fan to stop working and controlling the main air duct and the compressor to work normally when the indoor humidity is larger than or equal to the condensation preset humidity.
10. The condensation preventing control method according to claim 9, wherein the air conditioning indoor unit is the air conditioning indoor unit according to claim 2, and the condensation preventing control method further comprises, after the fresh air machine is controlled to stop working:
and controlling the first air deflectors at the at least two air outlets to be fully opened, and controlling the second air deflectors at the at least two fresh air outlets to be fully opened.
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| CN202210886077.8A CN115200091B (en) | 2022-07-26 | 2022-07-26 | Indoor unit of air conditioner and condensation prevention control method |
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| CN202210886077.8A CN115200091B (en) | 2022-07-26 | 2022-07-26 | Indoor unit of air conditioner and condensation prevention control method |
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