CN106958929A - Air-conditioning system and its blower control method - Google Patents
Air-conditioning system and its blower control method Download PDFInfo
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- CN106958929A CN106958929A CN201710348147.3A CN201710348147A CN106958929A CN 106958929 A CN106958929 A CN 106958929A CN 201710348147 A CN201710348147 A CN 201710348147A CN 106958929 A CN106958929 A CN 106958929A
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- Prior art keywords
- air
- conditioning system
- temperature value
- coil temperature
- predetermined value
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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
- 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
-
- 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
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of blower control method of air-conditioning system, comprise the following steps：When air-conditioning system runs defrosting mode, the coil temperature value and run time of outdoor heat exchanger are obtained；The air-conditioning system is judged during defrosting, and whether the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time；If the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time, the blower fan of air-conditioning system is opened, and run with predetermined wind shelves.The invention also discloses a kind of air-conditioning system.The blower fan that the present invention can solve outdoor unit during defrosting is closed, and the temperature sensor of outdoor heat exchanger position distribution is unreasonable or during the coil temperature failure of temperature sensor detection, condensing pressure is too high during causing defrosting, and then influences the technical problem of the stability of a system.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of air-conditioning system and its blower control method.
Background technology
The outdoor unit of air-conditioning system is during defrosting, and blower fan is normally closed, is judging whether control air-conditioning system
When system exits defrosting, typically judge whether to exit defrosting program using the coil temperature of outdoor heat exchanger, but in outdoor heat exchange
The position distribution of the temperature sensor of device is unreasonable or during the coil temperature failure of temperature sensor detection, then can influence air-conditioning system
Control of the system to the program that defrosts.In addition, when outdoor environment temperature is higher, if there is defrosting to require, and now blower fan is still to close
Closed state, the position distribution of the temperature sensor of outdoor heat exchanger is unreasonable or the coil temperature failure of temperature sensor detection
When, then the condensing pressure of defrosting process can be made acutely to raise, so cause the power swing of air-conditioning system larger, now automatically controlled hair
Heat can also increased dramatically, so as to influence air-conditioning system reliability.
The content of the invention
It is a primary object of the present invention to provide a kind of air-conditioning system and its blower control method, it is intended to solve defrosting process
The blower fan of middle outdoor unit is closed, and the temperature sensor of outdoor heat exchanger position distribution is unreasonable or TEMP
During the coil temperature failure of device detection, condensing pressure is too high during causing defrosting, and then influences the technology of the stability of a system to ask
Topic.
To achieve the above object, the present invention provides a kind of blower control method of air-conditioning system, comprises the following steps：
When air-conditioning system runs defrosting mode, the coil temperature value and run time of outdoor heat exchanger are obtained；
The air-conditioning system is judged during defrosting, and whether the coil temperature value continues greatly within first scheduled time
In or equal to first predetermined value；
If the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time, air-conditioning system is opened
The blower fan of system, and run with predetermined wind shelves.
Preferably, described to judge the air-conditioning system during defrosting, whether the coil temperature value is predetermined first
Also include after the step of being persistently more than or equal to first predetermined value in time：
If the coil temperature value is less than first predetermined value or not within first scheduled time persistently more than or equal to first
Predetermined value, then judge the air-conditioning system during defrosting, and whether the coil temperature value is within second scheduled time
Continuously less than second predetermined value；
If so, then the blower fan of control air-conditioning system is out of service.
Preferably, if the coil temperature value is not more than persistently less than first predetermined value or within first scheduled time
Or equal to first predetermined value, then the air-conditioning system is judged during defrosting, whether the coil temperature value is described second
Also include after the step of in the scheduled time continuously less than second predetermined value：
If it is not, then control air-conditioning system is continued to run with current wind shelves state.
Preferably, the blower control method of the air-conditioning system also includes：
When getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to the 3rd and makes a reservation for
Value；
If so, then judging the air-conditioning system during defrosting, whether the coil temperature value is in first scheduled time
Inside persistently it is more than or equal to first predetermined value.
Preferably, it is described when getting outdoor environment temperature value, judge the outdoor environment temperature value whether be more than or
Also include after the step of equal to third predetermined value：
If it is not, then the blower fan of control air-conditioning system is out of service.
To achieve the above object, the present invention also provides a kind of air-conditioning system, and the air-conditioning system includes：
Acquisition module, for air-conditioning system run defrosting mode when, obtain outdoor heat exchanger coil temperature value and
Run time；
Judge module, for judging the air-conditioning system during defrosting, whether the coil temperature value is pre- first
Fix time interior persistently more than or equal to first predetermined value；
Control module, makes a reservation for if being persistently more than or equal to first within first scheduled time for the coil temperature value
Value, then open the blower fan of air-conditioning system, and run with predetermined wind shelves.
Preferably, the judge module is additionally operable to：
If the coil temperature value is less than first predetermined value or not within first scheduled time persistently more than or equal to first
Predetermined value, then judge the air-conditioning system during defrosting, and whether the coil temperature value is within second scheduled time
Continuously less than second predetermined value；
The control module, is additionally operable to if so, then the blower fan of control air-conditioning system is out of service.
Preferably, the control module is additionally operable to：
If it is not, then control air-conditioning system is continued to run with current wind shelves state.
Preferably, the judge module is additionally operable to：
When getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to the 3rd and makes a reservation for
Value；
If so, then judging the air-conditioning system during defrosting, whether the coil temperature value is in first scheduled time
Inside persistently it is more than or equal to first predetermined value.
Preferably, the control module is additionally operable to：
If it is not, then the blower fan of control air-conditioning system is out of service.
Air-conditioning system and its blower control method that the present invention is provided, by when air-conditioning system runs defrosting mode, obtaining
The coil temperature value and run time of outdoor heat exchanger are taken, the air-conditioning system is then judged during defrosting, the disk
Whether pipe temperature value is persistently more than or equal to first predetermined value within first scheduled time, if the coil temperature value is pre- first
Fix time interior persistently more than or equal to first predetermined value, then open the blower fan of air-conditioning system, and run with predetermined wind shelves.So,
Run, can prevented due to room with predetermined wind shelves such as minimum wind shelves by when meeting predetermined condition, controlling the blower fan of outdoor unit
The position distribution of the temperature sensor of external heat exchanger is unreasonable or during the coil temperature failure of temperature sensor detection, caused to remove
Condensing pressure is too high during frost, and then the problem of the influence stability of a system, so as to improve air-conditioning system reliability.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the blower control method first embodiment of air-conditioning system of the present invention；
Fig. 2 is the schematic flow sheet of the blower control method second embodiment of air-conditioning system of the present invention；
Fig. 3 is the schematic flow sheet of the blower control method 3rd embodiment of air-conditioning system of the present invention；
Fig. 4 is the schematic flow sheet of the blower control method fourth embodiment of air-conditioning system of the present invention；
Fig. 5 is the high-level schematic functional block diagram of the embodiment of air-conditioning system one of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Reference picture 1, in the first embodiment, the blower control method of the air-conditioning system comprise the following steps：
Step S1, air-conditioning system run defrosting mode when, obtain outdoor heat exchanger coil temperature value and operation when
Between；
In the present embodiment, after air-conditioning system, which is started shooting, to be run, it can first judge whether air-conditioning system enters defrosting mode,
If now air-conditioning system enters defrosting mode, the coil temperature and air-conditioning system of real-time or timing acquisition outdoor heat exchanger
Run time.It should be understood that the run time can include the run time of air-conditioning system starting up, into defrosting mode
Run time, other can be actually needed time of acquisition, text description specific as follows according to.
Step S2, the air-conditioning system is judged during defrosting, whether the coil temperature value is in first scheduled time
Inside persistently it is more than or equal to first predetermined value；
In the present embodiment, enter defrosting mode in air-conditioning system, and when getting coil temperature value T3, judge the coil pipe
Whether temperature value T3 is more than or equal to first predetermined value, such as 10 DEG C, namely：Coil temperature value T3 >=10 DEG C, if coil temperature value
T3 meets this condition, then further obtains the duration M that coil temperature value T3 meets this condition.
If step S3, the coil temperature value are persistently more than or equal to first predetermined value within first scheduled time, open
The blower fan of air-conditioning system is opened, and is run with predetermined wind shelves.
In the present embodiment, if the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time,
I.e. within first scheduled time such as 5s, coil temperature value is satisfied by T3 >=10 DEG C, then opens the blower fan of outdoor unit of air-conditioning system, and
Run with minimum wind shelves.Thus, the state that the blower fan for avoiding outdoor unit in existing scheme is closed always, it is therefore prevented that air-conditioning system
Condensing pressure is too high during defrosting, ensures that the stability of air-conditioning system.It should be understood that entering defrosting journey in air-conditioning system
During sequence, now the blower fan of outdoor unit is closed.
The present embodiment does not differentiate between outdoor environment temperature to control the operation of blower fan during defrosting, in defrosting, if disk
Pipe temperature value T3 is higher than predetermined temperature and predetermined hold-time, then outdoor fan can run one small wind shelves during defrosting,
So as to reduce during air-conditioning system defrosting, condensing pressure is too high, ensures that the stability of air-conditioning system.
The blower control method for the air-conditioning system that the present invention is provided, by when air-conditioning system runs defrosting mode, obtaining
The coil temperature value and run time of outdoor heat exchanger, then judge the air-conditioning system during defrosting, the coil pipe
Whether temperature value is persistently more than or equal to first predetermined value within first scheduled time, if the coil temperature value is predetermined first
Persistently it is more than or equal to first predetermined value in time, then opens the blower fan of air-conditioning system, and run with predetermined wind shelves.So, lead to
Cross when meeting predetermined condition, control the blower fan of outdoor unit to be run with predetermined wind shelves such as minimum wind shelves, can prevent due to outdoor
The position distribution of the temperature sensor of heat exchanger is unreasonable or during the coil temperature failure of temperature sensor detection, caused defrosting
During condensing pressure it is too high, and then influence the stability of a system the problem of, so as to improve air-conditioning system reliability.
In one embodiment, on the basis of shown in above-mentioned Fig. 1, also include after the step S2：
If step S4, the coil temperature value are not persistently more than or waited within first scheduled time less than first predetermined value or
In first predetermined value, then the air-conditioning system is judged during defrosting, whether the coil temperature value is predetermined described second
Continuously less than second predetermined value in time；
In the first embodiment, if the coil temperature value is less than first predetermined value：Such as 10 DEG C of T3 ＜, then determine whether
Whether the coil temperature value T3 is less than second predetermined value, such as 5 DEG C, namely：5 DEG C of coil temperature value T3 ＜, if coil temperature value
T3 meets this condition, then further obtains the duration N that coil temperature value T3 meets this condition.
In a second embodiment, if the duration M of coil temperature value T3 >=10 DEG C and not up to first scheduled time such as
5s, then determine whether whether the coil temperature value T3 is less than second predetermined value, such as 5 DEG C, namely：Coil temperature value T3 ＜ 5
DEG C, if coil temperature value T3 meets this condition, further obtain the duration N that coil temperature value T3 meets this condition.
Step S5, if so, then control air-conditioning system blower fan it is out of service.
In the present embodiment, if the coil temperature value within second scheduled time continuously less than second predetermined value, i.e.,
In two scheduled times such as 5s, coil temperature value is satisfied by 5 DEG C of T3 ＜, then controls the blower fan of the outdoor unit of air-conditioning system to stop fortune
OK.
In one embodiment, reference picture 2, on the basis of shown in above-mentioned Fig. 1, also include after the step S4：
Step S6, if it is not, then control air-conditioning system with current wind shelves state continue to run with.
In the present embodiment, if the coil temperature value is more than or equal to second predetermined value, such as T3 >=5 DEG C, or the coil pipe
Temperature value is less than the duration and not up to second scheduled time of second predetermined value, then controls air-conditioning system with current wind shelves shape
State is continued to run with.
Wherein, the main state according to current wind shelves of control of current wind shelves state is controlled：If presently described blower fan
For closed mode, then blower fan is controlled to be constantly in closed mode；If presently described blower fan is opening, current wind shelves are kept
Operation.
In a second embodiment, reference picture 3, on the basis of shown in above-mentioned Fig. 1 or Fig. 2, are also wrapped before the step S2
Include：
Step S7, when getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to
Third predetermined value；
In the present embodiment, when air-conditioning system enters defrosting mode, can also by the outdoor temperature sensor of outdoor unit,
Outdoor environment temperature is detected, if getting outdoor environment temperature value, may determine that whether outdoor environment temperature value is more than or waits
In such as 15 DEG C of third predetermined value.
Step S8, if so, then judging the air-conditioning system during defrosting, whether the coil temperature value pre- first
Fix time interior persistently more than or equal to first predetermined value.
In the present embodiment, if outdoor environment temperature T1 >=15 DEG C, show that current outdoor environment temperature is higher, now,
Outdoor environment temperature it is higher and in the case of having defrost demand, it is necessary to determine whether coil temperature value whether in the first pre- timing
It is interior to be persistently more than or equal to first predetermined value, when meeting the condition, to control the blower fan of outdoor unit to be run with minimum wind shelves,
To reduce during air-conditioning system defrosting, condensing pressure is too high, ensures that the stability of air-conditioning system.
The present embodiment controls the operation of blower fan during defrosting using outdoor environment temperature is distinguished, in outdoor environment temperature
Gao Shi, if coil temperature T3 is higher than predetermined temperature and predetermined hold-time, outdoor fan can run one during defrosting
Small wind shelves, so that condensing pressure is too high during reducing air-conditioning system defrosting, ensure that the stability of air-conditioning system.
In one embodiment, reference picture 4, on the basis of shown in above-mentioned Fig. 3, also include after the step S7：
Step S9, if it is not, then control air-conditioning system blower fan it is out of service.
In the present embodiment, if the coil temperature value is less than first predetermined value, or the coil temperature value is more than or equal to
The duration of first predetermined value was not up to for first scheduled time, then controlled the blower fan of air-conditioning system out of service.
The present invention also provides a kind of air-conditioning system 100, and reference picture 5, in one embodiment, the air-conditioning system 100 include：
Acquisition module 10, for air-conditioning system run defrosting mode when, obtain outdoor heat exchanger coil temperature value with
And run time；
In the present embodiment, after air-conditioning system, which is started shooting, to be run, it can first judge whether air-conditioning system enters defrosting mode,
If now air-conditioning system enters defrosting mode, the coil temperature and air-conditioning system of real-time or timing acquisition outdoor heat exchanger
Run time.It should be understood that the run time can include the run time of air-conditioning system starting up, into defrosting mode
Run time, other can be actually needed time of acquisition, text description specific as follows according to.
Judge module 20, for judging the air-conditioning system during defrosting, whether the coil temperature value is first
Persistently it is more than or equal to first predetermined value in the scheduled time；
In the present embodiment, enter defrosting mode in air-conditioning system, and when getting coil temperature value T3, judge the coil pipe
Whether temperature value T3 is more than or equal to first predetermined value, such as 10 DEG C, namely：Coil temperature value T3 >=10 DEG C, if coil temperature value
T3 meets this condition, then further obtains the duration M that coil temperature value T3 meets this condition.
Control module 30, makes a reservation for if being persistently more than or equal to first within first scheduled time for the coil temperature value
Value, then open the blower fan of air-conditioning system, and run with predetermined wind shelves.
In the present embodiment, if the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time,
I.e. within first scheduled time such as 5s, coil temperature value is satisfied by T3 >=10 DEG C, then opens the blower fan of outdoor unit of air-conditioning system, and
Run with minimum wind shelves.Thus, the state that the blower fan for avoiding outdoor unit in existing scheme is closed always, it is therefore prevented that air-conditioning system
Condensing pressure is too high during defrosting, ensures that the stability of air-conditioning system.It should be understood that entering defrosting journey in air-conditioning system
During sequence, now the blower fan of outdoor unit is closed.
The present embodiment does not differentiate between outdoor environment temperature to control the operation of blower fan during defrosting, in defrosting, if disk
Pipe temperature value T3 is higher than predetermined temperature and predetermined hold-time, then outdoor fan can run one small wind shelves during defrosting,
So as to reduce during air-conditioning system defrosting, condensing pressure is too high, ensures that the stability of air-conditioning system.
The air-conditioning system that the present invention is provided, by when air-conditioning system runs defrosting mode, obtaining the disk of outdoor heat exchanger
Pipe temperature value and run time, then judge the air-conditioning system during defrosting, and whether the coil temperature value is
Persistently it is more than or equal to first predetermined value in one scheduled time, if the coil temperature value is persistently more than within first scheduled time
Or equal to first predetermined value, then the blower fan of air-conditioning system is opened, and run with predetermined wind shelves.So, by meeting predetermined bar
During part, control the blower fan of outdoor unit to be run with predetermined wind shelves such as minimum wind shelves, the temperature biography due to outdoor heat exchanger can be prevented
The position distribution of sensor is unreasonable or during the coil temperature failure of temperature sensor detection, condensing pressure during caused defrosting
It is too high, and then the problem of the influence stability of a system, so as to improve air-conditioning system reliability.
In one embodiment, on the basis of shown in above-mentioned Fig. 5, the judge module 20 is additionally operable to：
If the coil temperature value is less than first predetermined value or not within first scheduled time persistently more than or equal to first
Predetermined value, then judge the air-conditioning system during defrosting, and whether the coil temperature value is within second scheduled time
Continuously less than second predetermined value；
In the first embodiment, if the coil temperature value is less than first predetermined value：Such as 10 DEG C of T3 ＜, then determine whether
Whether the coil temperature value T3 is less than second predetermined value, such as 5 DEG C, namely：5 DEG C of coil temperature value T3 ＜, if coil temperature value
T3 meets this condition, then further obtains the duration N that coil temperature value T3 meets this condition.
In a second embodiment, if the duration M of coil temperature value T3 >=10 DEG C and not up to first scheduled time such as
5s, then determine whether whether the coil temperature value T3 is less than second predetermined value, such as 5 DEG C, namely：Coil temperature value T3 ＜ 5
DEG C, if coil temperature value T3 meets this condition, further obtain the duration N that coil temperature value T3 meets this condition.
The control module 30, is additionally operable to if so, then the blower fan of control air-conditioning system is out of service.
In the present embodiment, if the coil temperature value within second scheduled time continuously less than second predetermined value, i.e.,
In two scheduled times such as 5s, coil temperature value is satisfied by 5 DEG C of T3 ＜, then controls the blower fan of the outdoor unit of air-conditioning system to stop fortune
OK.
In one embodiment, on the basis of shown in above-mentioned Fig. 5, the control module 30 is additionally operable to：
If it is not, then control air-conditioning system is continued to run with current wind shelves state.
In the present embodiment, if the coil temperature value is more than or equal to second predetermined value, such as T3 >=5 DEG C, or the coil pipe
Temperature value is less than the duration and not up to second scheduled time of second predetermined value, then controls air-conditioning system with current wind shelves shape
State is continued to run with.
Wherein, the main state according to current wind shelves of control of current wind shelves state is controlled：If presently described blower fan
For closed mode, then blower fan is controlled to be constantly in closed mode；If presently described blower fan is opening, current wind shelves are kept
Operation.
In a second embodiment, on the basis of shown in above-mentioned Fig. 5, the judge module 20 is additionally operable to：
When getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to the 3rd and makes a reservation for
Value；
In the present embodiment, when air-conditioning system enters defrosting mode, can also by the outdoor temperature sensor of outdoor unit,
Outdoor environment temperature is detected, if getting outdoor environment temperature value, may determine that whether outdoor environment temperature value is more than or waits
In such as 15 DEG C of third predetermined value.
If so, then judging the air-conditioning system during defrosting, whether the coil temperature value is in first scheduled time
Inside persistently it is more than or equal to first predetermined value.
In the present embodiment, if outdoor environment temperature T1 >=15 DEG C, show that current outdoor environment temperature is higher, now,
Outdoor environment temperature it is higher and in the case of having defrost demand, it is necessary to determine whether coil temperature value whether in the first pre- timing
It is interior to be persistently more than or equal to first predetermined value, when meeting the condition, to control the blower fan of outdoor unit to be run with minimum wind shelves,
To reduce during air-conditioning system defrosting, condensing pressure is too high, ensures that the stability of air-conditioning system.
The present embodiment controls the operation of blower fan during defrosting using outdoor environment temperature is distinguished, in outdoor environment temperature
Gao Shi, if coil temperature T3 is higher than predetermined temperature and predetermined hold-time, outdoor fan can run one during defrosting
Small wind shelves, so that condensing pressure is too high during reducing air-conditioning system defrosting, ensure that the stability of air-conditioning system.
In one embodiment, on the basis of shown in above-mentioned Fig. 5, the control module 30 is additionally operable to：
If it is not, then the blower fan of control air-conditioning system is out of service.
In the present embodiment, if the coil temperature value is less than first predetermined value, or the coil temperature value is more than or equal to
The duration of first predetermined value was not up to for first scheduled time, then controlled the blower fan of air-conditioning system out of service.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of blower control method of air-conditioning system, it is characterised in that the blower control method of the air-conditioning system include with
Lower step：
When air-conditioning system runs defrosting mode, the coil temperature value and run time of outdoor heat exchanger are obtained；
Judge the air-conditioning system during defrosting, the coil temperature value whether be persistently more than within first scheduled time or
Equal to first predetermined value；
If the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time, air-conditioning system is opened
Blower fan, and run with predetermined wind shelves.
2. the blower control method of air-conditioning system as claimed in claim 1, it is characterised in that the judgement air-conditioning system
During defrosting, the step of whether the coil temperature value is persistently more than or equal to first predetermined value within first scheduled time
Also include afterwards：
Make a reservation for if the coil temperature value is less than first predetermined value or is persistently more than or equal to first not within first scheduled time
Value, then judge the air-conditioning system during defrosting, and whether the coil temperature value continues within second scheduled time
Less than second predetermined value；
If so, then the blower fan of control air-conditioning system is out of service.
3. the blower control method of air-conditioning system as claimed in claim 2, it is characterised in that if the coil temperature value
Persistently it is more than or equal to first predetermined value less than first predetermined value or not within first scheduled time, then judges the air-conditioning system
During defrosting, the coil temperature value whether within second scheduled time continuously less than second predetermined value the step of it
Also include afterwards：
If it is not, then control air-conditioning system is continued to run with current wind shelves state.
4. the blower control method of air-conditioning system as claimed in claim 1, it is characterised in that the blower fan control of the air-conditioning system
Method processed also includes：
When getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to third predetermined value；
If so, then judging the air-conditioning system during defrosting, whether the coil temperature value holds within first scheduled time
It is continuous to be more than or equal to first predetermined value.
5. the blower control method of air-conditioning system as claimed in claim 4, it is characterised in that described to get outdoor environment
During temperature value, judge also to include after the step of whether the outdoor environment temperature value is more than or equal to third predetermined value：
If it is not, then the blower fan of control air-conditioning system is out of service.
6. a kind of air-conditioning system, it is characterised in that the air-conditioning system includes：
Acquisition module, for when air-conditioning system runs defrosting mode, obtaining coil temperature value and the operation of outdoor heat exchanger
Time；
Judge module, for judging the air-conditioning system during defrosting, whether the coil temperature value is in the first pre- timing
It is interior to be persistently more than or equal to first predetermined value；
Control module, if being persistently more than or equal to first predetermined value within first scheduled time for the coil temperature value,
The blower fan of air-conditioning system is opened, and is run with predetermined wind shelves.
7. air-conditioning system as claimed in claim 6, it is characterised in that the judge module is additionally operable to：
Make a reservation for if the coil temperature value is less than first predetermined value or is persistently more than or equal to first not within first scheduled time
Value, then judge the air-conditioning system during defrosting, and whether the coil temperature value continues within second scheduled time
Less than second predetermined value；
The control module, is additionally operable to if so, then the blower fan of control air-conditioning system is out of service.
8. air-conditioning system as claimed in claim 7, it is characterised in that the control module is additionally operable to：
If it is not, then control air-conditioning system is continued to run with current wind shelves state.
9. air-conditioning system as claimed in claim 6, it is characterised in that the judge module is additionally operable to：
When getting outdoor environment temperature value, judge whether the outdoor environment temperature value is more than or equal to third predetermined value；
If so, then judging the air-conditioning system during defrosting, whether the coil temperature value holds within first scheduled time
It is continuous to be more than or equal to first predetermined value.
10. air-conditioning system as claimed in claim 9, it is characterised in that the control module is additionally operable to：
If it is not, then the blower fan of control air-conditioning system is out of service.
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| CN201710348147.3A CN106958929A (en) | 2017-05-17 | 2017-05-17 | Air-conditioning system and its blower control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710348147.3A CN106958929A (en) | 2017-05-17 | 2017-05-17 | Air-conditioning system and its blower control method |
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| CN106958929A true CN106958929A (en) | 2017-07-18 |
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| CN201710348147.3A Pending CN106958929A (en) | 2017-05-17 | 2017-05-17 | Air-conditioning system and its blower control method |
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| CN109737558A (en) * | 2018-12-29 | 2019-05-10 | 合肥美的暖通设备有限公司 | Air conditioner, defrosting control method and computer readable storage medium |
| CN113280472A (en) * | 2021-06-16 | 2021-08-20 | 四川长虹空调有限公司 | Control method of air conditioner heating mode and air conditioning system |
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| CN113280472A (en) * | 2021-06-16 | 2021-08-20 | 四川长虹空调有限公司 | Control method of air conditioner heating mode and air conditioning system |
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