CN109631164B - Control method of air conditioning unit - Google Patents
Control method of air conditioning unit Download PDFInfo
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- CN109631164B CN109631164B CN201811531457.XA CN201811531457A CN109631164B CN 109631164 B CN109631164 B CN 109631164B CN 201811531457 A CN201811531457 A CN 201811531457A CN 109631164 B CN109631164 B CN 109631164B
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
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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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of an air conditioning unit, wherein a cabinet indoor unit of the air conditioning unit adopted by the control method is of an up-and-down structure and comprises an upper air conditioner and a lower air conditioning fan which are independently controlled, the upper air conditioner comprises an evaporator and a first through-flow fan, the lower air conditioning fan comprises a second through-flow fan and a filter layer and is provided with a water collecting disc for receiving water drops on the evaporator and the filter layer, and the control method comprises a plurality of air conditioning unit refrigeration working modes: the upper air conditioner and the lower air conditioner fan are simultaneously started; the air conditioner can be used as an air conditioner; the air conditioner is used as an air conditioning fan; the fan is used as a fan. The air conditioning unit disclosed by the invention effectively combines an air conditioner with an air conditioning fan and a fan, so that cold air is not directly blown to people while the room temperature is reduced, and the human experience is improved; and the problem of condensate water discharge can be effectively solved, and the condensate water can be utilized to cool and humidify through the air conditioning fan, so that the air conditioner is more environment-friendly and energy-saving.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioning unit which can blow cool air but not cool air and dehumidify the air at constant temperature.
Background
At present, the air outlet temperature of an indoor unit of an air conditioner is about 10-15 ℃, and low cold air directly blows to a human body, so that the human body feels cold, discomfort is caused to the human body, and even air conditioning diseases can be caused. In the prior art, the scheme of adding micropores in the air guide door and the like is adopted to realize cool feeling and no wind feeling, but the scheme has the defects of large resistance, influence on refrigeration effect and the like; and the existing air conditioner always accompanies with the temperature reduction when dehumidifying, therefore, under the condition that the temperature reduction is not desired, such as in winter, the experience of the dehumidifying user is poorer, and the existing air conditioner can not provide a constant temperature dehumidifying mode, thereby bringing inconvenience to the daily life.
Disclosure of Invention
In view of the above, the present invention is directed to a method for controlling an air conditioning unit to achieve cooling without cooling and achieve constant temperature dehumidification.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control method of an air conditioning unit is characterized in that a cabinet indoor unit of the air conditioning unit adopted by the control method is of an up-and-down structure and comprises an upper air conditioner and a lower air conditioning fan which are independently controlled, the upper air conditioner comprises an evaporator and a first through-flow fan blade, the lower air conditioning fan comprises a second through-flow fan blade and a filter layer and is provided with a water collecting disc for receiving water drops on the evaporator and the filter layer, and the control method comprises a plurality of air conditioning unit refrigeration working modes:
in a first working mode, the upper air conditioner and the lower air conditioner fan are started simultaneously;
in a second working mode, the air conditioning unit is used as an air conditioner, and only the evaporator and the first through flow fan blade of the upper air conditioner are started;
in a third working mode, the air conditioning unit is used as an air conditioning fan, the second cross-flow fan blade of the lower air conditioning fan is started, water is added into the water accumulation disc, and the water in the water accumulation disc is sprayed to the filter layer;
in a fourth working mode, the air conditioning unit is used as a fan, and only the motor of the second cross-flow fan blade is turned on.
Further, the method for selecting the cooling operation mode of the air conditioning unit comprises the following steps:
s201, starting a refrigeration mode of the air conditioner, detecting indoor temperature by a temperature sensor, and if T is detectedInner ring-TSetting upTurning to step S202 at the temperature of less than b, wherein the value of b is-5-0; if the b ℃ is less than or equal to TInner ring-TSetting up< -b ℃, go to step S203; if TInner ring-TSetting up≥-b℃，Turning to the step S204, the procedure is executed,
s202, stopping the air conditioner when the temperature of the air conditioner is up, and stopping an outdoor compressor;
s203, detecting the indoor humidity by a humidity sensor, and if the indoor humidity is hIndoor useIf the air conditioner is not less than 65%, the upper air conditioner is turned on, the lower air conditioner fan is turned off, and the step S205 is carried out; if the indoor humidity hIndoor useIf the air conditioner is less than 6%, the upper air conditioner is turned off, the lower air conditioner fan is turned on, and the step S205 is executed;
s204, simultaneously starting the upper air conditioner and the lower air conditioner fan;
and S205, after the operation is carried out for the set time, returning to the step S201, detecting the indoor temperature and humidity again, and carrying out circulating operation, wherein the preset time range is 20-60S.
Further, in step S203, when the second cross-flow blade of the lower air conditioning fan is turned on, the air conditioning unit is used as the air conditioning fan or the air conditioning unit is used as the fan, where h is greater than 45%Indoor useIf the fan speed is less than 65%, only the second cross-flow fan blade is started to be used as a fan; when h is generatedIndoor useAnd (4) opening the second cross-flow fan blade at the speed of less than or equal to 45 percent, and spraying the filter layer to be used as an air conditioner fan to be opened.
Further, when the air conditioning unit is used as an air conditioning fan, ice water or ice crystals are added into the water accumulation disc.
Further, in the air conditioning unit in the first working mode, the upper air conditioner and the lower air conditioning fan are simultaneously started, the motor of the first cross flow fan blade is started, the compressor of the evaporator is started, the lower air conditioning fan turns on the second cross flow fan blade and sprays the filter layer, or only turns on the second cross flow fan blade to supply air, and the high-density fibers receive condensed water generated by the evaporator to cool and humidify.
Further, the air conditioning unit further comprises an electric heater, and the control method further comprises a constant temperature dehumidification working mode of the air conditioning unit:
the air conditioning unit dehumidifies at a constant temperature, and the electric feeder is turned on to heat while the upper air conditioning dehumidification mode is turned on.
Further, the control method of the constant temperature dehumidification working mode of the air conditioning unit comprises the following steps:
s101, enabling an upper air conditioner to enter a dehumidification mode, and detecting indoor humidity by a humidity sensor; if the difference h between the indoor humidity and the set humidityIndoor use≥hSetting upIf yes, go to step S102, otherwise exit the dehumidification mode;
s102, detecting the indoor temperature by a temperature sensor, and if the difference T between the indoor temperature and the set temperatureInner ring-TSetting upThe temperature is more than or equal to a ℃, only the upper air conditioner is started; if the difference T between the indoor temperature and the set temperatureInner ring-TSetting upIf the temperature is less than a ℃, the upper air conditioner and the electric heater are simultaneously started, wherein the range of a is 0 to-3;
and S103, operating for a preset time, and returning to the step S101 after a preset operation mode is reached, wherein the preset time range is 20-60S.
Further, the predetermined time is 30 s.
Further, the electric heater comprises a first electric heater and a second electric heater, wherein the first electric heater is arranged between the first through-flow fan blade and the evaporator in the upper air conditioner; the second electric heater is arranged between the second cross-flow fan blade and the filter layer.
Further, in step S102, the simultaneously turning on of the upper air conditioner and the electric heater includes turning on an upper air conditioner evaporator, the first electric heater and/or the second electric heater, and adjusting the air volume according to the stepless speed regulation of the motor.
Compared with the prior art, the control method has the following advantages:
(1) the control method of the invention effectively combines the air conditioner with the air conditioning fan and the fan, reduces the room temperature, simultaneously, the cold air does not directly blow people, improves the human body experience, and reduces the occurrence probability of air conditioning diseases;
(2) the control method not only can effectively solve the problem of condensate water discharge, but also can utilize the condensate water to carry out cooling and humidification through the air conditioning fan, thereby being more environment-friendly and energy-saving;
(3) the control method can supply the temperature reduced during dehumidification by starting the electric heater, thereby realizing constant temperature dehumidification.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an air conditioning unit which blows cool but not cool and dehumidifies at constant temperature according to an embodiment of the present invention;
FIG. 2 is a flow chart of a constant temperature dehumidification mode in the control method according to the embodiment of the invention;
FIG. 3 is a top view of an upper air conditioner of the air conditioning unit according to an embodiment of the present invention;
FIG. 4 is a top view of a lower air conditioning fan of the air conditioning unit according to an embodiment of the present invention;
fig. 5 is a flowchart of a cooling mode in the control method according to the embodiment of the present invention.
Description of reference numerals:
1-a first through-flow fan blade, 2-an evaporator, 3-a first electric heater, 4-a second through-flow fan blade, 5-high-density fibers, 6-a second electric heater, 7-a water collecting disc, 8-a water pump and 9-overflow holes.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In an embodiment of the present invention, a control method for an air conditioning unit that blows cool air but not cool air and dehumidifies at a constant temperature is provided, in which an air conditioner and an air conditioning fan are combined to simultaneously blow out air from the air conditioning fan and the air conditioner. The upper part of the indoor unit of the air conditioning unit adopts an evaporator which is connected with a compressor, a refrigerant flows in the evaporator, and cold air is blown through heat exchange during refrigeration to quickly reduce the indoor temperature; the lower part can be used as an air-conditioning fan to be independently started or simultaneously started with an air conditioner to cool the air; meanwhile, an electric heater is additionally arranged between the evaporator and the lower-layer high-density fibers and the fan blades of the air conditioning unit, so that constant-temperature dehumidification can be realized.
The upper half part of the indoor unit of the air conditioning unit adopted by the embodiment is an air conditioner, and a first electric heater 3 is additionally arranged; the lower half part comprises a second electric heater 6, a motor, a second cross-flow fan blade 4, a water pump 8, a water accumulation disc 7 and high-density fibers 5, and fig. 1 is a schematic structural diagram of an air conditioning unit which blows air to cool but not cool and dehumidifies at a constant temperature according to an embodiment of the invention. As shown in fig. 1, the air conditioning unit of the present invention has an up-down structure, and includes an upper air conditioner and a lower air conditioner, wherein a water collecting tray 7 is disposed below the lower air conditioner, and the air conditioning unit divides a cross-flow fan of a cylindrical cabinet into two small cross-flow fans, i.e., a first cross-flow fan 1 at the upper part and a second cross-flow fan 4 at the lower part, which can be controlled to start and stop respectively. And water collecting discs are arranged on the lower parts of the second cross-flow fan blades 4 and the high-density fibers 5, and the water collecting discs 7 can collect condensed water, so that inconvenience brought to users due to the fact that the condensed water drips everywhere is avoided. The water pump 8 is connected with the water collecting disc 7 and connected with the spray head 10 above the high-density fibers 5, and the water pump 8 sprays water in the water collecting disc to the high-density fibers 5. Ponding dish 7 is for dismantling the connection, is convenient for carry out artifical the interpolation when ponding dish water yield is less. In order to adjust the water volume in the water accumulation disc conveniently, an overflow hole 9 is formed in the water accumulation disc 7 at a certain height, and when the water volume in the water accumulation disc 7 exceeds a certain scale, the water can be automatically discharged.
When the user uses the air conditioning unit, the user can select various working modes. In a first working mode, the upper air conditioner and the lower air conditioner fan are simultaneously started, the motor of the first through-flow fan blade 1 is started, the compressor of the evaporator 2 is started, the upper air conditioner blows cold air, at the moment, the lower air conditioner fan can start the second through-flow fan blade 4 and the water pump to realize cooling and humidification, or the lower air conditioner fan only starts the second through-flow fan blade 4 to supply air, and the two modes can realize that cold air of the air conditioner is not directly blown to people and increase the comfort level.
When the upper air conditioner and the lower air conditioner fan are started simultaneously, the evaporator 2 and the air conditioner fan are in an up-down structure, and low-temperature condensate water on the evaporator 2 can directly drip on high-density fibers and is used for humidifying air by the air conditioner fan and reducing the room temperature. At the moment, the water pump 8 can be temporarily not started, and only the second cross-flow fan blade 4 is opened, so that electricity is saved, the cooling mode saves energy sources, and the problem of discharging condensed water is solved.
In a second working mode, the air conditioning unit is used as an air conditioner, the first through-flow fan blade 1 of the upper air conditioner and the evaporator 2 arranged on the periphery can be only started, the first electric heater 2 and the water pump 8 are closed, and the air conditioning unit can be independently used as a common air conditioner for refrigeration, cooling and dehumidification.
In a third working mode, the air conditioning unit is used as an air conditioning fan, a compressor connected with an upper air conditioner is closed, a water pump 8 and a motor of the second cross-flow fan blade 4 are started, ice water or ice crystals are added into the water accumulation disc 7, the indoor temperature is reduced, the indoor humidity is improved, the power is small, and the energy consumption is low.
Preferably, multiplicable cold water and ice crystal in the ponding dish 7 constantly spray high density fiber 5 with the cold water in the ponding dish 7 through water pump 8, with indoor set the latter half as the air cooler, reducible power consumption, the energy saving realizes the air conditioner cooling humidification, improves the mesh of travelling comfort.
In the fourth working mode, the air conditioning unit is used as a fan, a compressor connected with an upper air conditioner is closed, only a motor of the second cross-flow fan blade 4 is started, the power consumption is low, and due to the existence of the high-density fibers 5, air can be purified, and the air outlet of the fan is clean and comfortable compared with that of a common fan.
In a fifth working mode, the air conditioning unit dehumidifies at constant temperature, the upper-layer electric heater and the lower-layer electric heater can be selectively and simultaneously or independently turned on, the air quantity is adjusted according to the stepless speed regulation of the motor, the refrigeration and heating are adjusted, and the constant-temperature dehumidification is realized.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 2 is a flowchart of a constant temperature dehumidification mode in the control method according to the embodiment of the present invention. As shown in fig. 2, the method for controlling the constant temperature dehumidification mode of the air conditioning unit in this embodiment includes:
s101, the air conditioner enters a dehumidification mode, and a humidity sensor detects indoor humidity; if the difference h between the indoor humidity and the set humidityIndoor use≥hSetting upIf yes, go to step S102, otherwise exit the dehumidification mode;
s102, detecting the indoor temperature by the temperature sensor, and judging whether the room is a roomDifference T between internal temperature and set temperatureInner ring-TSetting upThe temperature is more than or equal to a ℃, only the upper air conditioner is started; if the difference T between the indoor temperature and the set temperatureInner ring-TSetting upIf the temperature is less than a ℃, the upper air conditioner and the electric heater are simultaneously started, wherein the range of a is 0 to-3;
and S103, operating for a preset time, and returning to the step S101 after a preset operation mode is reached, wherein the preset time range is 20-60S.
Preferably, a is-1, and the predetermined time is 30 s.
And in the dehumidification mode, judging whether to start the electric heater or not by measuring the temperature difference between the indoor temperature and the set temperature, detecting the indoor temperature and humidity again after running for a preset time, and exiting the dehumidification mode until the indoor temperature is less than the set value.
Preferably, the electric heater comprises a first electric heater and a second electric heater. The first electric heater is arranged between a first through-flow fan blade 1 and an evaporator 2 in the upper air conditioner; the second electric heater is arranged between the second cross-flow fan blade 4 and the high-density fibers 5.
Further optionally, in the step S102, the turning on of the upper air conditioner and the electric heater simultaneously includes turning on an upper air conditioner evaporator, the first electric heater and/or the second electric heater.
Fig. 3 is a plan view of an upper air conditioner of an air conditioning unit according to an embodiment of the present invention, wherein the air conditioner is arranged on the upper portion of the air conditioner, the air conditioner is cooled by blowing air but not cooled, and the air conditioner dehumidifies at a constant temperature, as shown in fig. 2, an evaporator 2 is arranged on the periphery of a first through-flow fan blade 1 on the upper portion of the air conditioner, a first electric heater 3 is arranged between the first through-flow fan blade 1 and the evaporator 2, a refrigerant circulates in the evaporator 2, and no evaporator is arranged on the.
Fig. 4 is a plan view of a lower air conditioning fan of an air conditioning unit according to an embodiment of the present invention, where the lower air conditioning fan is cool, but not cool, and dehumidifies at a constant temperature, and as shown in fig. 3, high-density fibers 5 are disposed on the periphery of a second cross-flow fan 4, and a first electric heater 3 is disposed between the second cross-flow fan 4 and the high-density fibers 5.
In the constant temperature and humidity mode, the evaporator 2 is turned on at the same timeAt least one of an electric heater 3 and the first electric heater 3 is turned on, specifically, when the difference T between the indoor temperature and the set temperatureInner ring-TSetting upThe temperature is less than a ℃, wherein when the value of a is-6 to-3, the first electric heater 3 and the first electric heater 3 are simultaneously started; when-3 < TInner ring-TSetting upIf < 0, one of the first electric heater 3 and the first electric heater 3 is turned on.
Fig. 5 is a flowchart of a cooling mode in the control method according to the embodiment of the present invention. As shown in fig. 5, the method for controlling the cooling mode of the air conditioning unit of the present embodiment includes:
s201, starting a refrigeration mode of the air conditioner, detecting indoor temperature by a temperature sensor, and if T is detectedInner ring-TSetting upTurning to step S202 at the temperature of less than b, wherein the value of b is-5-0; if the b ℃ is less than or equal to TInner ring-TSetting up< -b ℃, go to step S203; if TInner ring-TSetting upTurning to step S204 at the temperature of more than or equal to-b ℃;
s202, stopping the air conditioner when the temperature of the air conditioner is up, and stopping an outdoor compressor;
s203, detecting the indoor humidity by a humidity sensor, and if the indoor humidity is hIndoor useIf the air conditioner is not less than 65%, the upper air conditioner is turned on, the lower air conditioner fan is turned off, and the step S205 is carried out; if the indoor humidity hIndoor useIf the air conditioner is less than 65%, the upper air conditioner is turned off, the lower air conditioner fan is turned on, and the step S205 is executed;
s204, simultaneously turning on the upper air conditioner and the lower air conditioner, and turning to the step S205;
and S205, after the operation is carried out for the set time, returning to the step S201, detecting the indoor temperature and humidity again, and carrying out circulating operation, wherein the preset time range is 20-60S.
In this embodiment, in step S201, b is — 3; in step S203, when the second cross-flow blade of the lower air conditioning fan is turned on, the air conditioning unit is used as an air conditioning fan or used as a fan, wherein when 45% < hIndoor useIf the fan speed is less than 65%, only the second cross-flow fan blade is started to be used as a fan; when h is generatedIndoor useAnd (4) opening the second cross-flow fan blade at the speed of less than or equal to 45 percent, and spraying the filter layer to be used as an air conditioner fan to be opened.
In step S204, the lower air conditioning fan may select whether to turn on a water pump to spray a filter layer of the air conditioning fan. Specifically, the motor of the first through-flow fan blade 1 is started, the compressor of the evaporator 2 is started, the upper air conditioner blows cold air, at the moment, the lower air conditioner fan can start the second through-flow fan blade 4 and the water pump to achieve cooling and humidification, or the lower air conditioner fan only starts the second through-flow fan blade 4 to supply air, and the two modes can achieve the effect that cold air of the air conditioner is not directly blown to people, so that the comfort level is increased.
In step S204, when the upper air conditioner and the lower air conditioner are started simultaneously, since the evaporator 2 and the air conditioner are in the vertical structure, the low-temperature condensed water on the evaporator 2 can directly drip on the high-density fibers 5, and is used for humidifying air by the air conditioner and reducing the room temperature. At the moment, the water pump 8 can be temporarily not started, and only the second cross-flow fan blade 4 is opened, so that electricity is saved, the cooling mode saves energy sources, and the problem of discharging condensed water is solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A control method of an air conditioning unit is characterized in that a cabinet indoor unit of the air conditioning unit adopted by the control method is of an up-and-down structure and comprises an upper air conditioner and a lower air conditioning fan which are independently controlled, wherein the upper air conditioner comprises an evaporator and a first through-flow fan blade, the lower air conditioning fan comprises a second through-flow fan blade and a filter layer and is provided with a water collecting disc for receiving water drops on the evaporator and the filter layer, and the control method comprises a plurality of air conditioning unit refrigeration working modes:
in a first working mode, the upper air conditioner and the lower air conditioner fan are started simultaneously;
in a second working mode, the air conditioning unit is used as an air conditioner, and only the evaporator and the first through flow fan blade of the upper air conditioner are started;
in a third working mode, the air conditioning unit is used as an air conditioning fan, the second cross-flow fan blade of the lower air conditioning fan is started, water is added into the water accumulation disc, and the water in the water accumulation disc is sprayed to the filter layer;
in a fourth working mode, the air conditioning unit is used as a fan, and only the motor of the second cross-flow fan blade is started;
the method for selecting the refrigeration working mode of the air conditioning unit comprises the following steps:
s201, starting a refrigeration mode of the air conditioner, detecting indoor temperature by a temperature sensor, and if T is detectedInner ring-TSetting upTurning to step S202 at the temperature of less than b, wherein the value of b is-5-0; if the b ℃ is less than or equal to TInner ring-TSetting up< -b ℃, go to step S203; if TInner ring-TSetting upAt the temperature of more than or equal to-b ℃, turning to the step S204,
s202, stopping the air conditioner when the temperature of the air conditioner is up, and stopping an outdoor compressor;
s203, detecting the indoor humidity by a humidity sensor, and if the indoor humidity is hIndoor useIf the air conditioner is not less than 65%, the upper air conditioner is turned on, the lower air conditioner fan is turned off, and the step S205 is carried out; if the indoor humidity hIndoor useIf the air flow rate is less than 65%, the upper air conditioner is closed, the second cross-flow fan blade of the lower air conditioner fan is opened, and the step S205 is executed;
s204, simultaneously turning on the upper air conditioner and the lower air conditioner, and turning to the step S205;
and S205, after the operation is carried out for the set time, returning to the step S201, detecting the indoor temperature and humidity again, and carrying out circulating operation, wherein the set time range is 20-60S.
2. The control method according to claim 1, wherein in step S203, when the second cross-flow blade of the lower air conditioning fan is turned on, the air conditioning unit is used as an air conditioning fan or used as a fan, and when 45% < hIndoor useIf the fan speed is less than 65%, only the second cross-flow fan blade is started to be used as a fan; when h is generatedIndoor useAnd (4) opening the second cross-flow fan blade at the speed of less than or equal to 45 percent, and spraying the filter layer to be used as an air conditioner fan to be opened.
3. The control method of claim 2, wherein when the air conditioning unit is used as an air conditioning fan, ice water or ice crystals are added to the water accumulation plate.
4. The control method according to claim 1, wherein in the first operation mode of the air conditioning unit, the upper air conditioner and the lower air conditioner are simultaneously turned on, the motor of the first cross-flow fan is turned on, the compressor of the evaporator is turned on, the lower air conditioner turns on the second cross-flow fan and sprays the filter layer, or only turns on the second cross-flow fan to supply air, and the high-density fibers receive the condensed water generated by the evaporator to cool and humidify.
5. The control method according to claim 1, wherein the air conditioning unit further comprises an electric heater, and the control method further comprises an air conditioning unit constant temperature dehumidification operation mode:
the air conditioning unit dehumidifies at a constant temperature, and the electric heater is turned on to heat while the upper air conditioning dehumidification mode is turned on.
6. The control method according to claim 5, wherein the control method for the constant temperature dehumidification operation mode of the air conditioning unit comprises the following steps:
s101, enabling an upper air conditioner to enter a dehumidification mode, and detecting indoor humidity by a humidity sensor; if the difference h between the indoor humidity and the set humidityIndoor use≥hSetting upIf yes, go to step S102, otherwise exit the dehumidification mode;
s102, detecting the indoor temperature by a temperature sensor, and if the difference T between the indoor temperature and the set temperatureInner ring-TSetting upThe temperature is more than or equal to a ℃, only the upper air conditioner is started; if the difference T between the indoor temperature and the set temperatureInner ring-TSetting up<and a ℃, simultaneously starting the upper air conditioner and the electric heater, wherein the range of a is 0 to-3;
and S103, operating for a preset time, and returning to the step S101 after a preset operation mode is reached, wherein the preset time range is 20-60S.
7. The control method according to claim 6, wherein the predetermined time is 30 s.
8. The control method according to claim 6, wherein the electric heater comprises a first electric heater and a second electric heater, wherein the first electric heater is arranged between a first through-flow fan blade and the evaporator in the upper air conditioner; the second electric heater is arranged between the second cross-flow fan blade and the filter layer.
9. The control method according to claim 8, wherein in the step S102, the upper air conditioner and the electric heater are simultaneously turned on, and the upper air conditioner evaporator, the first electric heater and/or the second electric heater are/is turned on, and the air volume is adjusted according to stepless speed regulation of a motor.
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| CN112146193A (en) * | 2019-06-28 | 2020-12-29 | 广东美的制冷设备有限公司 | Air purification assembly, control method and device, air conditioner and storage medium |
| CN112628968B (en) * | 2020-12-24 | 2022-04-26 | 珠海格力电器股份有限公司 | Cold energy recovery method, air conditioner refrigeration energy-saving control method and air conditioner |
| CN112856757B (en) * | 2021-01-29 | 2022-05-31 | 重庆海尔空调器有限公司 | Air conditioner and sterilization control method thereof |
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