CN107023965A - Air-conditioning system and its dehumidification control method - Google Patents
Air-conditioning system and its dehumidification control method Download PDFInfo
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- CN107023965A CN107023965A CN201710241116.8A CN201710241116A CN107023965A CN 107023965 A CN107023965 A CN 107023965A CN 201710241116 A CN201710241116 A CN 201710241116A CN 107023965 A CN107023965 A CN 107023965A
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- air
- conditioning system
- control
- conditioning
- refrigerating operaton
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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
- F24F11/62—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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/54—Heating and cooling, simultaneously or alternatively
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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)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioning system and its dehumidification control method, this method comprises the following steps：After air-conditioning system enters dehumidification mode, control air-conditioning system carries out refrigerating operaton, and controls the electric heating unit of air-conditioning system to be heated；After the preset time of air-conditioning system refrigerating operaton first, control air-conditioning system switches to heating operation, and controls electric heating unit to proceed heating；After the preset time of air-conditioning system heating operation second, control the air-conditioning system preset time of refrigerating operaton first again, so that Air Conditioning Cycle is freezed and heated, it is slow or the purpose of dehumidifying is reached on the premise of not declining in the temperature drop that ensures air-conditioning system room so as to using circularly cooling and heating.
Description
Technical field
The present invention relates to living electric apparatus technical field, the dehumidification control method and one kind of more particularly to a kind of air-conditioning system are empty
Adjusting system.
Background technology
Interior machine is generally divided into two parts to realize constant temperature dehumidification by the constant temperature dehumidification air-conditioning in correlation technique, wherein, one
Part heat exchanger serves as evaporator and carries out refrigerated dehumidification, and another part heat exchanger serves as condenser and heated up.But, it is present
The problem of be that system architecture is complicated, the cost of input is higher, and is difficult in dehumidification process to keep the stabilization of room temperature.
Therefore, there is improved necessity in correlation technique.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of dehumidification control method of air-conditioning system, can decline slowly or not decline ensureing room temperature
Premise is issued to the purpose of dehumidifying.
It is another object of the present invention to propose a kind of air-conditioning system.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of dehumidification control method of air-conditioning system, bag
Include following steps：After the air-conditioning system enters dehumidification mode, the air-conditioning system is controlled to carry out refrigerating operaton, and control institute
The electric heating unit for stating air-conditioning system is heated；After the preset time of air-conditioning system refrigerating operaton first, control is described
Air-conditioning system switches to heating operation, and controls the electric heating unit to proceed heating；Fortune is heated in the air-conditioning system
After the preset time of row second, the air-conditioning system the first preset time described in refrigerating operaton again is controlled, so that the air-conditioning system
System circulation is freezed and heated.
The dehumidification control method of the air-conditioning system proposed according to embodiments of the present invention, enters dehumidifying mould in air-conditioning system first
After formula, control air-conditioning system carries out refrigerating operaton, and controls the electric heating unit of air-conditioning system to be heated, then in air-conditioning system
After the preset time of controlling cold operation first, control air-conditioning system switches to heating operation, and controls electric heating unit to proceed
Heating, and then after the preset time of air-conditioning system heating operation second, control air-conditioning system is when refrigerating operaton first is preset again
Between, so that Air Conditioning Cycle is freezed and heated, so as to using circularly cooling and heat, ensureing air-conditioning system room
Temperature drop slowly or on the premise of not declining reaches the purpose of dehumidifying.
According to one embodiment of present invention, the dehumidification control method of described air-conditioning system also includes：Obtain the sky
The dehumidifying time of adjusting system；When the dehumidifying time of the air-conditioning system reaching three preset times, the air-conditioning system is controlled
Exit the dehumidification mode.
According to one embodiment of present invention, during the air-conditioning system carries out refrigerating operaton and heating operation,
The indoor fan of the air-conditioning system is controlled to be run with high wind shelves.
According to one embodiment of present invention, the control air-conditioning system switches to heating operation, including：Control institute
The running frequency for stating air-conditioning system is reduced to predeterminated frequency；The running frequency of the air-conditioning system be reduced to predeterminated frequency it
Afterwards, control the air-conditioning system to switch to heating operation, and control the running frequency of air-conditioning system to improve to target frequency.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air-conditioning system, including：Electric heating unit
Member；Four-way valve；Control unit, described control unit is connected with the electric heating unit and the four-way valve respectively, the control
Unit is used for after the air-conditioning system enters dehumidification mode, controls the air-conditioning system to carry out refrigeration fortune by the four-way valve
OK, and control the electric heating unit to be heated, and after the preset time of air-conditioning system refrigerating operaton first, pass through
The four-way valve controls the air-conditioning system to switch to heating operation, and controls the electric heating unit to proceed heating, with
And after the preset time of air-conditioning system heating operation second, control the air-conditioning system first pre- described in refrigerating operaton again
If the time, so that the Air Conditioning Cycle is freezed and heated.
The air-conditioning system proposed according to embodiments of the present invention, control unit passes through after air-conditioning system enters dehumidification mode
Four-way valve control air-conditioning system carries out refrigerating operaton, and controls electric heating unit to be heated, and is transported in air-conditioning system refrigeration
After the preset time of row first, control air-conditioning system to switch to heating operation by four-way valve, and control electric heating unit continue into
Row heating, and after the preset time of air-conditioning system heating operation second, control air-conditioning system again preset by refrigerating operaton first
Time, so that Air Conditioning Cycle is freezed and heated, so as to using circularly cooling and heat, ensureing air-conditioning system room
Temperature drop it is slow or the purpose of dehumidifying is reached on the premise of not declining.
According to one embodiment of present invention, described control unit, is additionally operable to obtain the dehumidifying time of the air-conditioning system,
And when the dehumidifying time of the air-conditioning system reaching three preset times, control the air-conditioning system to exit the dehumidifying mould
Formula.
According to one embodiment of present invention, during the air-conditioning system carries out refrigerating operaton and heating operation,
Described control unit also controls the indoor fan of the air-conditioning system to be run with high wind shelves.
According to one embodiment of present invention, described control unit, is additionally operable to, and controls the running frequency of the air-conditioning system
It is reduced to predeterminated frequency, and after the running frequency of the air-conditioning system is reduced to predeterminated frequency, controls the air-conditioning system
Heating operation is switched to, and controls the running frequency of air-conditioning system to improve to target frequency.
Brief description of the drawings
Fig. 1 is the flow chart of the dehumidification control method of air-conditioning system according to embodiments of the present invention；
Fig. 2 is the flow chart of the dehumidification control method of air-conditioning system according to an embodiment of the invention；
Fig. 3 is the flow chart of the dehumidification control method of the air-conditioning system according to a specific embodiment of the invention；And
Fig. 4 is the block diagram of air-conditioning system according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The air-conditioning system and its dehumidification control method of the embodiment of the present invention described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart of the dehumidification control method of air-conditioning system according to embodiments of the present invention.As shown in figure 1, the sky
The dehumidification control method of adjusting system comprises the following steps：
S1：After air-conditioning system enters dehumidification mode, control air-conditioning system carries out refrigerating operaton, and controls air-conditioning system
Electric heating unit is heated.
Wherein, the electric heating unit of air-conditioning system can for PTC (Positive Temperature CoeffiCient, just
Temperature coefficient) semiconductor heating ceramics.
S2：After the preset time of air-conditioning system refrigerating operaton first, control air-conditioning system switches to heating operation, and controls
Electric heating unit proceeds heating.
According to one embodiment of present invention, air-conditioning system is controlled between refrigerating operaton and heating operation by four-way valve
Switching.
S3：After the preset time of air-conditioning system heating operation second, control air-conditioning system again preset by refrigerating operaton first
Time, so that Air Conditioning Cycle is freezed and heated.
That is, after air-conditioning system enters dehumidification mode, first controlling air-conditioning system to carry out refrigerating operaton, in air-conditioning system
After the preset time of controlling cold operation first, control air-conditioning system switches to heating operation by refrigerating operaton, and in air-conditioning system system
After heat the second preset time of operation, control air-conditioning system switches to refrigerating operaton again, and in air-conditioning system refrigerating operaton first
After preset time, control air-conditioning system switches to heating operation by refrigerating operaton again, so repeatedly said process, so that air-conditioning
System circulation is freezed and heated.Also, during Air Conditioning Cycle is freezed and is heated, control electric heating unit
Member is persistently heated.
It should be noted that the air-conditioning system in correlation technique is dehumidified using machine evaporator in a part, a part
Interior machine evaporator is freezed, to ensure in air-conditioning system refrigerated dehumidification process, and the temperature in air-conditioning system room is constant temperature, air-conditioning
System, which also opens electric auxiliary heat and serves as electric heating unit, to be heated.Although the auxiliary hot unlatching of electricity can suitably lift room temperature,
But because refrigeration duty hot thermic load more auxiliary than electricity is big, room temperature is general or can slowly reduce.Thus, in the reality of the present invention
Apply in example, can first control air-conditioning system to freeze (interior electric auxiliary heating unlatching) operation a period of time, then hot (the interior electric auxiliary heating of the transformation of ownership
Open) operation a period of time, so freeze using Air Conditioning Cycle and heat circulation, to ensure the temperature in air-conditioning system room
Decline slowly or reached on the premise of not declining the purpose of dehumidifying.
According to one embodiment of present invention, as shown in Fig. 2 the dehumidification control method of above-mentioned air-conditioning system also include with
Lower step：
S4：Obtain the dehumidifying time of air-conditioning system.
S5：When the dehumidifying time of air-conditioning system reaching three preset times, control air-conditioning system exits dehumidification mode.
That is, during air-conditioning system repetitive cycling is freezed and heated, also obtaining the dehumidifying of air-conditioning system
Time, when the dehumidifying time of air-conditioning system reaching three preset times, control air-conditioning system exits dehumidification mode, conversely, working as
When the dehumidifying time of air-conditioning system is not up to three preset times, continue to control air-conditioning system to be in dehumidification mode.
According to one embodiment of present invention, the first preset time, the second preset time and the 3rd preset time shift to an earlier date pre-
Deposit within air-conditioning systems.
According to one embodiment of present invention, during air-conditioning system carries out refrigerating operaton and heating operation, control
The indoor fan of air-conditioning system is run with high wind shelves.
According to one embodiment of present invention, control air-conditioning system switches to heating operation, including：Control air-conditioning system
Running frequency is reduced to predeterminated frequency；After the running frequency of air-conditioning system is reduced to predeterminated frequency, control air-conditioning system is cut
Heating operation is shifted to, and controls the running frequency of air-conditioning system to improve to target frequency.
Wherein, the predeterminated frequency of air-conditioning system operation prestores within air-conditioning systems in advance, and predeterminated frequency is less than target frequency
Rate.Target frequency is demarcated according to actual conditions.
That is, when air-conditioning system switches to heating operation by refrigerating operaton, first by air-conditioning system during refrigerating operaton
The running frequency of system is reduced to predeterminated frequency, after the running frequency of air-conditioning system is reduced to predeterminated frequency, air-conditioning system by
Refrigerating operaton switches to heating operation, and after air-conditioning system carries out heating operation, then by the default operation of air-conditioning system
Frequency upgrading is to target frequency.
It should be noted that switching to heating operation by refrigerating operaton in air-conditioning system and being switched to again by heating operation
During the repetitive cycling of refrigerating operaton, the indoor fan of air-conditioning system continues to run with high wind shelves, and electric heating unit is lasting
Heating.
According to the specific embodiment of the present invention, as shown in figure 3, the dehumidification control method of the air-conditioning system is including following
Step：
S101：Start, start operation.
S102：The setting dehumidifying time is the 3rd preset time.
S103：Control air-conditioning system enters dehumidification mode.
S104：Air-conditioning system is controlled to carry out refrigerating operaton, while controlling heating unit to be heated, indoor fan is with high wind
Shelves operation.
S105：Judge that air-conditioning system carries out whether the refrigerating operaton time reaches the first preset time.
If it is, performing step S106；If it is not, then return to step S105.
S106：The running frequency of control air-conditioning system is reduced to predeterminated frequency.
S107：Control air-conditioning system switches to heating operation, while controlling heating unit to be heated, indoor fan is with height
Wind shelves operation.
S108：The running frequency of control air-conditioning system is improved to target frequency.
S109：Judge that air-conditioning system carries out whether the heating operation time reaches the second preset time.
If it is, performing step S110；If it is not, then return to step S109.
S110：Judge whether the dehumidification mode of air-conditioning system reaches the 3rd preset time.
If it is, performing step S111；If it is not, then return to step S104.
S111：Air-conditioning system exits dehumidification mode, terminates.
As described above, in an embodiment of the present invention, control air-conditioning start operation, and set the dehumidifying time to be preset for the 3rd
Time, then air-conditioning system is controlled to enter dehumidification mode.
After air-conditioning system enters dehumidification mode, air-conditioning system is controlled to carry out refrigerating operaton first, while controlling heating
Unit is heated, and indoor fan is run with high wind shelves, then judges whether the air-conditioning system progress refrigerating operaton time reaches the
One preset time, if air-conditioning system, which carries out the refrigerating operaton time, reaches the first preset time, controls the operation of air-conditioning system
Frequency is reduced to predeterminated frequency；If air-conditioning system carries out the refrigerating operaton time and is not up to the first preset time, air-conditioning is controlled
System proceeds refrigerating operaton, until run time reaches the first preset time.
Reached in the air-conditioning system progress refrigerating operaton time after the first preset time, control the running frequency of air-conditioning system
Predeterminated frequency is reduced to, while switching to heating operation by the switching control air-conditioning system of four-way valve, and heating unit is controlled
Heated, indoor fan is run with high wind shelves, and the running frequency of control air-conditioning system is improved to target frequency, is then sentenced
Disconnected air-conditioning system carries out whether the heating operation time reaches the second preset time, is reached if air-conditioning system carries out the heating operation time
To the second preset time, then judge whether the dehumidification mode of air-conditioning system reaches the 3rd preset time；If air-conditioning system is carried out
The heating operation time is not up to the second preset time, then controls air-conditioning system to proceed heating operation, until run time reaches
To the second preset time.
Reached in the air-conditioning system progress heating operation time after the second preset time, judge the dehumidification mode of air-conditioning system
Whether threeth preset time is reached, if the dehumidification mode of air-conditioning system reaches the 3rd preset time, control air-conditioning system is moved back
Go out dehumidification mode；If the dehumidification mode of air-conditioning system is not up to the 3rd preset time, continue to control heating unit to be heated,
Indoor fan is run with high wind shelves, and the target frequency of air-conditioning system during control heating operation is reduced to default operation frequency
Rate, after the target frequency of air-conditioning system is reduced to preset operating frequency, by the switching control air-conditioning system of four-way valve by
Heating operation switches to refrigerating operaton, after air-conditioning system carries out refrigerating operaton, then by the preset operating frequency of air-conditioning system
It is promoted to refrigerating operaton frequency.Then judge whether the time of air-conditioning system progress refrigerating operaton reaches the first preset time, and
Reached in the time that air-conditioning system carries out refrigerating operaton after the first preset time, pass through the switching control air-conditioning system of four-way valve
Heating operation, such repetitive cycling said process are switched to by refrigerating operaton, until the dehumidification mode of air-conditioning system reaches the 3rd
Preset time.
In summary, the dehumidification control method of the air-conditioning system proposed according to embodiments of the present invention, first in air-conditioning system
Into after dehumidification mode, control air-conditioning system carries out refrigerating operaton, and controls the electric heating unit of air-conditioning system to be heated, and connects
After the preset time of air-conditioning system refrigerating operaton first, control air-conditioning system switches to heating operation, and controls electric heating unit
Member proceeds heating, and then after the preset time of air-conditioning system heating operation second, controls air-conditioning system refrigerating operaton again
First preset time, so that Air Conditioning Cycle is freezed and heated, so as to using circularly cooling and heat, is ensureing air-conditioning
The temperature drop in system room slowly or on the premise of not declining reaches the purpose of dehumidifying.
Fig. 4 is the block diagram of air-conditioning system according to embodiments of the present invention.As shown in figure 4, the air-conditioning system 100 is wrapped
Include：Electric heating unit 10, four-way valve 20 and control unit 30.
Wherein, control unit 30 is connected with electric heating unit 10 and four-way valve 20 respectively, and control unit 30 is used in air-conditioning
System 100 enters after dehumidification mode, controls air-conditioning system 100 to carry out refrigerating operaton by four-way valve 20, and control electric heating unit
Member 10 is heated, and after the first preset time of refrigerating operaton of air-conditioning system 100, air-conditioning system is controlled by four-way valve 20
100 switch to heating operation, and control electric heating unit 10 to proceed heating, and in the heating operation of air-conditioning system 100 the
After two preset times, the preset time of refrigerating operaton first again of air-conditioning system 100 is controlled, so that the circulation of air-conditioning system 100 is carried out
Freeze and heat.
Wherein, the electric heating unit 10 of air-conditioning system is, for example, PTC (Positive Temperature
CoeffiCient, positive temperature coefficient) semiconductor heating ceramics.
According to one embodiment of present invention, control unit 30 controls the refrigeration of air-conditioning system 100 to transport by four-way valve 20
Switching between row and heating operation.
That is, after air-conditioning system 100 enters dehumidification mode, control unit 30 first controls air-conditioning system 100 to carry out
Refrigerating operaton, after the first preset time of refrigerating operaton of air-conditioning system 100, control unit 30 controls air-conditioning system 100 by freezing
Operation switches to heating operation, and after the second preset time of heating operation of air-conditioning system 100, the control air-conditioning of control unit 30 system
System 100 switches to refrigerating operaton again, and after the first preset time of refrigerating operaton of air-conditioning system 100, control unit 30 is controlled
Air-conditioning system 100 switches to heating operation by refrigerating operaton again, so repeatedly said process, so that air-conditioning system 100 is circulated
Freezed and heated.Also, during the circulation of air-conditioning system 100 is freezed and heated, control unit 30 controls electricity
Heating unit 10 is persistently heated.
It should be noted that the air-conditioning system 100 in correlation technique is dehumidified using machine evaporator in a part, one
Machine evaporator is freezed in point, and to ensure in the refrigerated dehumidification process of air-conditioning system 100, the temperature in the room of air-conditioning system 100 is
Constant temperature, air-conditioning system 100, which also opens electric auxiliary heat and serves as electric heating unit 10, to be heated.Although the auxiliary hot unlatching of electricity can be appropriate
Room temperature is lifted, but because refrigeration duty hot thermic load more auxiliary than electricity is big, room temperature is general or can slowly reduce.By
This, in an embodiment of the present invention, can first control air-conditioning system 100 to freeze (interior electric auxiliary heating unlatching) operation a period of time,
Again the transformation of ownership hot (interior electric auxiliary heating unlatching) operation a period of time, so utilize the circularly cooling of air-conditioning system 100 and heat circulation, with
Ensure that the temperature drop in air-conditioning system room slowly or on the premise of not declining reaches the purpose of dehumidifying.
According to one embodiment of present invention, control unit 30 be additionally operable to obtain air-conditioning system 100 the dehumidifying time, and
When the dehumidifying time of air-conditioning system 100 reaches three preset times, control air-conditioning system 100 exits dehumidification mode.
That is, during the repetitive cycling of air-conditioning system 100 is freezed and heated, control unit 30 also obtains sky
The dehumidifying time of adjusting system 100, when the dehumidifying time of air-conditioning system 100 reaching three preset times, control unit 30 is controlled
Air-conditioning system 100 exits dehumidification mode, conversely, when the dehumidifying time of air-conditioning system 100 being not up to three preset times, control
Unit 30 continues to control air-conditioning system 100 to be in dehumidification mode.
According to one embodiment of present invention, the first preset time, the second preset time and the 3rd preset time shift to an earlier date pre-
Exist in control unit 30.
According to one embodiment of present invention, during air-conditioning system 100 carries out refrigerating operaton and heating operation, control
Unit 30 processed also controls the indoor fan of air-conditioning system 100 to be run with high wind shelves.
According to one embodiment of present invention, control unit 30 is additionally operable to control the running frequency reduction of air-conditioning system 100
To predeterminated frequency, and after the running frequency of air-conditioning system 100 is reduced to predeterminated frequency, control air-conditioning system 100 is switched to
Heating operation, and control the running frequency of air-conditioning system 100 to improve to target frequency.
Wherein, the predeterminated frequency that air-conditioning system 100 is run is pre-stored in control unit 30 in advance, and predeterminated frequency is less than mesh
Mark frequency.Target frequency is demarcated according to actual conditions.
That is, when air-conditioning system 100 switches to heating operation by refrigerating operaton, the control air-conditioning of control unit 30 system
Unite 100 refrigerating operaton when running frequency be reduced to predeterminated frequency, be reduced to predeterminated frequency in the running frequency of air-conditioning system 100
Afterwards, air-conditioning system 100 switches to heating operation by refrigerating operaton, and after air-conditioning system 100 carries out heating operation, control
The preset operating frequency of the control of unit 30 air-conditioning system 100 processed is promoted to target frequency.
It should be noted that switching to heating operation by refrigerating operaton in air-conditioning system 100 and being cut again by heating operation
During the repetitive cycling for shifting to refrigerating operaton, the indoor fan of the control air-conditioning system 100 of control unit 30 continues with high wind
Shelves operation, while controlling the continuous heating of electric heating unit 10.
Thus, in an embodiment of the present invention, the control of control unit 30 air-conditioning start operation, and set the dehumidifying time to be the
Three preset times, then control unit 30 control air-conditioning system 100 enter dehumidification mode.
After air-conditioning system 100 enters dehumidification mode, control unit 30 controls air-conditioning system 100 to carry out refrigeration fortune first
OK, while controlling heating unit 10 to be heated, indoor fan is run with high wind shelves, then judges that air-conditioning system 100 is made
Whether the cold operation time reaches the first preset time, if air-conditioning system 100 carry out the refrigerating operaton time reach first it is default when
Between, then the running frequency of the control of control unit 30 air-conditioning system 100 is reduced to predeterminated frequency；If air-conditioning system 100 is made
The cold operation time is not up to the first preset time, then the control of control unit 30 air-conditioning system 100 proceeds refrigerating operaton, until
Run time reaches the first preset time.
Reached in the progress refrigerating operaton time of air-conditioning system 100 after first preset time, control unit 30 controls air-conditioning
The running frequency of system 100 is reduced to predeterminated frequency, while switching to system by the switching control air-conditioning system 100 of four-way valve 20
Heat operation, and control heating unit 10 to be heated, indoor fan is run with high wind shelves, and controls the operation frequency of air-conditioning system
Rate is improved to target frequency, then judges that air-conditioning system 100 carries out whether the heating operation time reaches the second preset time, if
The progress heating operation time of air-conditioning system 100 reaches the second preset time, then control unit 30 judges the dehumidifying of air-conditioning system 100
Whether pattern reaches the 3rd preset time；If air-conditioning system 100 carries out the heating operation time and is not up to the second preset time,
Control air-conditioning system 100 proceeds heating operation, until run time reaches the second preset time.
Reached in the progress heating operation time of air-conditioning system 100 after second preset time, control unit 30 judges air-conditioning
Whether the dehumidification mode of system 100 reaches the 3rd preset time, if the dehumidification mode of air-conditioning system 100 reach the 3rd it is default when
Between, continue to control heating unit 10 to be heated, indoor fan is run with high wind shelves, and air-conditioning system during control heating operation
System 100 target frequency be reduced to preset operating frequency, the target frequency of air-conditioning system 100 be reduced to preset operating frequency it
Afterwards, refrigerating operaton is switched to by heating operation by the switching control air-conditioning system 100 of four-way valve 20, entered in air-conditioning system 100
After row refrigerating operaton, then the preset operating frequency of air-conditioning system 100 is promoted to refrigerating operaton frequency.Then air-conditioning system is judged
Whether the time that system 100 carries out refrigerating operaton reaches the first preset time, and carries out the time of refrigerating operaton in air-conditioning system 100
Reach after the first preset time, switched to by the switching control air-conditioning system 100 of four-way valve 20 by refrigerating operaton and heat fortune
OK, such repetitive cycling said process, until the dehumidification mode of air-conditioning system 100 reaches the 3rd preset time.
In summary, the air-conditioning system proposed according to embodiments of the present invention, control unit enters dehumidifying mould in air-conditioning system
After formula, control air-conditioning system to carry out refrigerating operaton by four-way valve, and control electric heating unit to be heated, and in air-conditioning system
After the preset time of controlling cold operation first, air-conditioning system is controlled to switch to heating operation by four-way valve, and control electric heating unit
Member proceeds heating, and after the preset time of air-conditioning system heating operation second, controls air-conditioning system refrigerating operaton again
First preset time, so that Air Conditioning Cycle is freezed and heated, so as to using circularly cooling and heat, is ensureing air-conditioning
The temperature drop in system room slowly or on the premise of not declining reaches the purpose of dehumidifying.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (8)
1. a kind of dehumidification control method of air-conditioning system, it is characterised in that comprise the following steps：
After the air-conditioning system enters dehumidification mode, the air-conditioning system is controlled to carry out refrigerating operaton, and control the air-conditioning
The electric heating unit of system is heated；
After the preset time of air-conditioning system refrigerating operaton first, the air-conditioning system is controlled to switch to heating operation, and control
Make the electric heating unit and proceed heating；
After the preset time of air-conditioning system heating operation second, control the air-conditioning system again first described in refrigerating operaton
Preset time, so that the Air Conditioning Cycle is freezed and heated.
2. the dehumidification control method of air-conditioning system according to claim 1, it is characterised in that also include：
Obtain the dehumidifying time of the air-conditioning system；
When the dehumidifying time of the air-conditioning system reaching three preset times, the air-conditioning system is controlled to exit the dehumidifying mould
Formula.
3. the dehumidification control method of air-conditioning system according to claim 1, it is characterised in that carried out in the air-conditioning system
During refrigerating operaton and heating operation, the indoor fan of the air-conditioning system is controlled to be run with high wind shelves.
4. the dehumidification control method of air-conditioning system according to claim 1, it is characterised in that the control air-conditioning system
System switches to heating operation, including：
The running frequency of the air-conditioning system is controlled to be reduced to predeterminated frequency；
After the running frequency of the air-conditioning system is reduced to predeterminated frequency, controls the air-conditioning system to switch to and heats fortune
OK, and the running frequency of air-conditioning system is controlled to improve to target frequency.
5. a kind of air-conditioning system, it is characterised in that including：
Electric heating unit；
Four-way valve；
Control unit, described control unit is connected with the electric heating unit and the four-way valve respectively, and described control unit is used
After dehumidification mode is entered in the air-conditioning system, the air-conditioning system is controlled to carry out refrigerating operaton by the four-way valve, and
The electric heating unit is controlled to be heated, and after the preset time of air-conditioning system refrigerating operaton first, by described
Four-way valve controls the air-conditioning system to switch to heating operation, and controls the electric heating unit to proceed heating, Yi Ji
After the preset time of air-conditioning system heating operation second, control the air-conditioning system again described in refrigerating operaton first it is default when
Between, so that the Air Conditioning Cycle is freezed and heated.
6. air-conditioning system according to claim 5, it is characterised in that described control unit, is additionally operable to obtain the air-conditioning
The dehumidifying time of system, and when the dehumidifying time of the air-conditioning system reaching three preset times, control the air-conditioning system
Exit the dehumidification mode.
7. air-conditioning system according to claim 5, it is characterised in that carry out refrigerating operaton in the air-conditioning system and heat
During operation, described control unit also controls the indoor fan of the air-conditioning system to be run with high wind shelves.
8. air-conditioning system according to claim 5, it is characterised in that described control unit, is additionally operable to, the air-conditioning is controlled
The running frequency of system is reduced to predeterminated frequency, and after the running frequency of the air-conditioning system is reduced to predeterminated frequency, control
Make the air-conditioning system and switch to heating operation, and control the running frequency of air-conditioning system to improve to target frequency.
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| CN201710241116.8A CN107023965A (en) | 2017-04-13 | 2017-04-13 | Air-conditioning system and its dehumidification control method |
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| CN201710241116.8A CN107023965A (en) | 2017-04-13 | 2017-04-13 | Air-conditioning system and its dehumidification control method |
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| CN201710241116.8A Pending CN107023965A (en) | 2017-04-13 | 2017-04-13 | Air-conditioning system and its dehumidification control method |
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| CN108119989A (en) * | 2017-12-07 | 2018-06-05 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device |
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Application publication date: 20170808 |