CN107023935B - Air-conditioning system and its halt control method - Google Patents
Air-conditioning system and its halt control method Download PDFInfo
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- CN107023935B CN107023935B CN201710135880.7A CN201710135880A CN107023935B CN 107023935 B CN107023935 B CN 107023935B CN 201710135880 A CN201710135880 A CN 201710135880A CN 107023935 B CN107023935 B CN 107023935B
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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
- F24F11/30—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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a kind of halt control methods of air-conditioning system, comprising the following steps: obtains the air-conditioning predetermined running mode of user's selection, and reads the coil temperature of indoor heat exchanger or outdoor heat exchanger after air-conditioning booting；After air-conditioning system runs the predetermined time, read the coil temperature of the indoor heat exchanger or outdoor heat exchanger, and calculate the indoor heat exchanger that obtains twice of front and back or the coil temperature of the outdoor heat exchanger that front and back obtains twice between difference；If the difference meets range corresponding with the predetermined running mode, controls the air-conditioning system and shut down.The invention also discloses a kind of air-conditioning systems.The present invention can control air-conditioning system autostop, so that it is guaranteed that the safety of air-conditioning system in air conditioning operating mode set by user and inconsistent actual operational mode.
Description
Technical field
The present invention relates to refrigeration technology field more particularly to a kind of air-conditioning systems and its halt control method.
Background technique
Air-conditioning system generallys use four-way valve to change the flow direction of refrigerant, to realize that refrigeration, heating, dehumidification mode are cut
It changes, to meet the different demands of client.When four-way valve breaks down or coil is detached from, four-way valve will not change refrigerant
Flow direction, if set by user is heating mode, and air-conditioning system actual motion is refrigeration mode, then may cause and blow a cold wind over,
Or evaporator freezes, to bring sense of discomfort for user.When four-way valve is stuck, if set by user is refrigeration mode, and
Air-conditioning system actual motion is heating mode, then may bring insecurity to air-conditioning system.
Summary of the invention
The main purpose of the present invention is to provide a kind of air-conditioning system and its halt control methods, it is intended to sky set by user
When adjusting operational mode and inconsistent actual operational mode, air-conditioning system autostop is controlled, so that it is guaranteed that the peace of air-conditioning system
Quan Xing.
To achieve the above object, the present invention provides a kind of halt control method of air-conditioning system, comprising the following steps:
The air-conditioning predetermined running mode of user's selection is obtained, and reads indoor heat exchanger or outdoor heat exchange after air-conditioning booting
The coil temperature of device；
After air-conditioning system runs the predetermined time, the coil temperature of the indoor heat exchanger or outdoor heat exchanger is read, and
Between the coil temperature for calculating the indoor heat exchanger that front and back obtains twice or the outdoor heat exchanger that front and back obtains twice
Difference；
If the difference meets range corresponding with the predetermined running mode, controls the air-conditioning system and shut down.
Preferably, if the difference meets range corresponding with the predetermined running mode, the air-conditioning is controlled
The step of system-down includes:
When the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the front and back two of the indoor heat exchanger
The difference of secondary coil temperature, then judge whether the difference is less than first predetermined value；
If the difference is less than the first predetermined value, controls the air-conditioning system and shut down.
Preferably, if the difference meets range corresponding with the predetermined running mode, the air-conditioning is controlled
The step of system-down includes:
When the predetermined running mode is heating mode, if what is obtained is the front and back coil pipe twice of the indoor heat exchanger
The difference of temperature, then judge whether the difference is greater than second predetermined value；
If the difference is greater than the second predetermined value, controls the air-conditioning system and shut down.
Preferably, if the difference meets range corresponding with the predetermined running mode, the air-conditioning is controlled
The step of system-down includes:
When the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the front and back two of the outdoor heat exchanger
The difference of secondary coil temperature, then judge whether the difference is greater than third predetermined value；
If the difference is greater than the third predetermined value, controls the air-conditioning system and shut down.
Preferably, if the difference meets range corresponding with the predetermined running mode, the air-conditioning is controlled
The step of system-down includes:
When the predetermined running mode is heating mode, if what is obtained is the front and back coil pipe twice of the outdoor heat exchanger
Whether the difference of temperature then judges the difference less than the 4th predetermined value；
If the difference is less than the 4th predetermined value, controls the air-conditioning system and shut down.
Preferably, the halt control method of the air-conditioning system further include:
When controlling air-conditioning system shutdown, fault message is prompted.
Preferably, the halt control method of the air-conditioning system further include:
If the difference is unsatisfactory for range corresponding with the predetermined running mode, the air-conditioning system is controlled after reforwarding
Row.
To achieve the above object, the present invention also provides a kind of air-conditioning system, the air-conditioning system includes:
Module is obtained, for obtaining the air-conditioning predetermined running mode of user's selection, and interior is read after air-conditioning booting and changes
The coil temperature of hot device or outdoor heat exchanger；
Computing module, for reading the indoor heat exchanger or outdoor heat exchanger after air-conditioning system runs the predetermined time
Coil temperature, and calculate the indoor heat exchanger that obtains twice of front and back or the outdoor heat exchanger that front and back obtains twice
Difference between coil temperature；
Control module controls the sky if meeting range corresponding with the predetermined running mode for the difference
Adjusting system is shut down.
Preferably, the control module includes:
Judging unit is used for when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the interior
The difference of the front and back of heat exchanger coil temperature twice, then judge whether the difference is less than first predetermined value；
Control unit controls the air-conditioning system and shuts down if being less than the first predetermined value for the difference.
Preferably, the control module includes:
Judging unit is used for when the predetermined running mode is heating mode, if what is obtained is the indoor heat exchanger
Front and back coil temperature twice difference, then judge whether the difference is greater than second predetermined value；
Control unit controls the air-conditioning system and shuts down if being greater than the second predetermined value for the difference.
Preferably, the control module includes: judging unit, for being the mould that freezes or dehumidify in the predetermined running mode
When formula, if what is obtained is the difference of the front and back coil temperature twice of the outdoor heat exchanger, judge whether the difference is greater than
Third predetermined value；
Control unit controls the air-conditioning system and shuts down if being greater than the third predetermined value for the difference.
Preferably, the control module includes:
Judging unit is used for when the predetermined running mode is heating mode, if what is obtained is the outdoor heat exchanger
Front and back coil temperature twice difference, then judge the difference whether less than the 4th predetermined value；
Control unit controls the air-conditioning system and shuts down if being less than the 4th predetermined value for the difference.
Preferably, the air-conditioning system further include:
Cue module, for prompting fault message when controlling air-conditioning system shutdown.
Preferably, the control module is also used to:
If the difference is unsatisfactory for range corresponding with the predetermined running mode, the air-conditioning system is controlled after reforwarding
Row.
Air-conditioning system and its halt control method provided by the invention, by the air-conditioning predetermined running mould for obtaining user's selection
Formula, and the coil temperature of reading indoor heat exchanger or outdoor heat exchanger after air-conditioning booting, it is then predetermined in air-conditioning system operation
After time, the coil temperature of the indoor heat exchanger or outdoor heat exchanger is read, and calculates the interior that front and back obtains twice
Difference between the coil temperature for the outdoor heat exchanger that heat exchanger or front and back obtain twice, if the difference meet with it is described
The corresponding range of predetermined running mode then controls the air-conditioning system and shuts down.In this way, in air conditioning operating mode set by user and
When actual operational mode is inconsistent, air-conditioning system autostop is controlled in time, prevents further system injury, so that it is guaranteed that
The safety of air-conditioning system.
Detailed description of the invention
Fig. 1 is the flow diagram of the halt control method first embodiment of air-conditioning system of the present invention；
Fig. 2 is the refinement flow diagram of step S3 first embodiment in Fig. 1；
Fig. 3 is the refinement flow diagram of step S3 second embodiment in Fig. 1；
Fig. 4 is the refinement flow diagram of step S3 3rd embodiment in Fig. 1；
Fig. 5 is the refinement flow diagram of step S3 fourth embodiment in Fig. 1；
Fig. 6 is the flow diagram of the halt control method second embodiment of air-conditioning system of the present invention；
Fig. 7 is the flow diagram of the halt control method 3rd embodiment of air-conditioning system of the present invention；
Fig. 8 is the functional block diagram of air-conditioning system first embodiment of the present invention；
Fig. 9 is the refinement the functional block diagram of control module in Fig. 8；
Figure 10 is the functional block diagram of air-conditioning system second embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific 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.
Referring to Fig.1, in one embodiment, the air-conditioning system halt control method the following steps are included:
Step S1, obtain user selection air-conditioning predetermined running mode, and air-conditioning booting after read indoor heat exchanger or
The coil temperature of outdoor heat exchanger；
In the present embodiment, air-conditioning system includes the system of the compositions such as compressor, condenser, evaporator, four-way valve, throttle part
The circuit control system of the compositions such as cooling system and automatically controlled, temperature sensor.Side indoors passes through the centre of heat exchanger indoors
Temperature sensor is placed in coil pipe position, to detect the coil temperature T of indoor heat exchangerInterior 0.In outside, can also be changed in outdoor
Temperature sensor is placed in the intermediate coil pipe position of hot device, to detect the coil temperature T of outdoor heat exchangerOuter 0.When air-conditioning system is run
When, there are heat exchanges between the indoor unit and room air of air-conditioning system, namely there are the temperature difference.It may determine that sky using the temperature difference
Whether the currently running mode of adjusting system is consistent with the air-conditioning predetermined running mode of user's selection, therefore, it is determined that current air-conditioning system
It is whether abnormal.
In the present embodiment, a preferably key power on mode, namely when user is in selection refrigeration, dehumidifying, heating or air-supply etc.
When mode, i.e. starting air-conditioning is switched on and corresponds to the mode for running selection.
Step S2, after air-conditioning system runs the predetermined time, the coil pipe of the indoor heat exchanger or outdoor heat exchanger is read
Temperature, and calculate the coil pipe temperature of the indoor heat exchanger that front and back obtains twice or the outdoor heat exchanger that front and back obtains twice
Difference between degree；
In the present embodiment, after air-conditioning system is switched on operation predetermined time such as 5~10min (preferably 8min), institute is read
State the coil temperature T of indoor heat exchanger1.Then the difference between the coil temperature for the indoor heat exchanger that front and back obtains twice is calculated
ΔT1=TInterior 0-T1；Or read the coil temperature T2 of the outdoor heat exchanger.Then the outdoor heat exchanger that front and back obtains twice is calculated
Coil temperature between difference DELTA T2=TOutside0-T2。
Can be under any operational mode, the coil temperature of the indoor heat exchanger or outdoor heat exchanger that take front and back to obtain twice
Between difference, if obtain be indoor heat exchanger Δ T1=T0-T1, can also be selected according to different predetermined running modes
Different calculating difference methods is taken, if predetermined running mode is refrigeration or dehumidification mode, then difference is Δ T=TInterior 0-T1；If pre-
Determining operational mode is heating mode, then difference is Δ T=T1-TInterior 0, certainly, in other embodiments, difference can also be taken in turn
Value, the present invention is to this and is not especially limited.If that obtain is the Δ T of outdoor heat exchanger2=TOuter 0-T2, equally can as above set
It sets, details are not described herein again.
If step S3, the described difference meets range corresponding with the predetermined running mode, the air-conditioning system is controlled
It shuts down.
It is described when determining whether air-conditioning system is abnormal when the predetermined running mode difference of user's selection in the present embodiment
The corresponding range of difference is also different.It is such as switched on after user selects heating mode, indoor heat exchanger is to indoor heat release, indoor heat exchange
Temperature increases when the coil temperature of device is compared to booting, if the coil temperature of indoor heat exchanger is lower instead, illustrates existing
What it is in operation is refrigeration or dehumidification mode, then the predetermined running mode and actual motion mode of user's selection are inconsistent.Work as client
Be switched on after selection refrigeration or dehumidification mode, room heat exchanger from indoor absorption heat, the coil temperature of indoor heat exchanger compared to
Temperature reduces when booting, if the coil temperature of indoor heat exchanger is got higher instead, illustrates the heating mode run now, then
The predetermined running mode and actual motion mode of user's selection are inconsistent.Example above illustrates that the switching of four-way valve is asked
Topic, as four-way valve is likely to occur failure or stuck, it is also possible to which electric-control system goes wrong, and does not send normal signal to four-way
Valve.
Similarly, the indoor heat exchange of air-conditioning system and outdoor heat exchange are two opposite processes, if indoor for heating, room
Outer is refrigeration, and therefore, the coil temperature of outdoor heat exchanger can also correspond to judgement refrigeration or be made according to the temperature gap of front and back
Heat, details are not described herein again.
The halt control method of air-conditioning system provided by the invention, by the air-conditioning predetermined running mould for obtaining user's selection
Formula, and the coil temperature of reading indoor heat exchanger or outdoor heat exchanger after air-conditioning booting, it is then predetermined in air-conditioning system operation
After time, the coil temperature of the indoor heat exchanger or outdoor heat exchanger is read, and calculates the interior that front and back obtains twice
Difference between the coil temperature for the outdoor heat exchanger that heat exchanger or front and back obtain twice, if the difference meet with it is described
The corresponding range of predetermined running mode then controls the air-conditioning system and shuts down.In this way, in air conditioning operating mode set by user and
When actual operational mode is inconsistent, air-conditioning system autostop is controlled in time, prevents further system injury, so that it is guaranteed that
The safety of air-conditioning system.
In the first embodiment, as shown in Fig. 2, on the basis of above-mentioned shown in FIG. 1, the step S3 includes:
Step S31, when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the indoor heat exchanger
Front and back coil temperature twice difference, then judge whether the difference is less than first predetermined value；
In the present embodiment, after user triggers refrigeration or dehumidification mode power-on instruction, compressor and indoor and outdoor blower do not have also
When having unlatching, by the temperature sensor of indoor heat exchanger, the coil temperature T of indoor heat exchanger is detected0.When air-conditioning system is switched on
After running predetermined time such as 5~10min (preferably 8min), the coil temperature of indoor heat exchanger is detected by temperature sensor
T1。
Calculate the difference DELTA T between the coil temperature for the indoor heat exchanger that front and back obtains twice1=TInterior 0-T1, and judge Δ T
Whether first predetermined value-S (S > 0, preferably 2 DEG C) is less than.
If step S32, the described difference is less than the first predetermined value, controls the air-conditioning system and shut down.
In the present embodiment, if it is determined that the difference DELTA T1<-S then illustrates indoor heat exchanger after air-conditioning system is switched on
Coil temperature is got higher, and is at this time heating mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In a second embodiment, as shown in figure 3, on the basis of above-mentioned shown in FIG. 1, the step S3 includes:
Step S33, when the predetermined running mode is heating mode, if what is obtained is the front and back of the indoor heat exchanger
The difference of coil temperature twice, then judge whether the difference is greater than second predetermined value；
In the present embodiment, after user triggers heating mode power-on instruction, when compressor and indoor and outdoor blower are not yet turned on,
By the temperature sensor of indoor heat exchanger, the coil temperature T of indoor heat exchanger is detectedInterior 0.When air-conditioning system booting operation is predetermined
After time such as 5~10min (preferably 8min), the coil temperature T of indoor heat exchanger is detected by temperature sensor1。
Calculate the difference DELTA T between the coil temperature for the indoor heat exchanger that front and back obtains twice1=TInterior 0-T1, and judge Δ
T1Whether second predetermined value S (S > 0, preferably 2 DEG C) is greater than.
If step S34, the described difference is greater than the second predetermined value, controls the air-conditioning system and shut down.
In the present embodiment, if it is determined that the difference DELTA T1> S then illustrates the disk of indoor heat exchanger after air-conditioning system booting
Tube temperature degree is lower, and is at this time refrigeration or dehumidifier mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In the third embodiment, as shown in figure 4, on the basis of above-mentioned shown in FIG. 1, the step S3 includes:
Step S35, when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the outdoor heat exchanger
Front and back coil temperature twice difference, then judge whether the difference is greater than third predetermined value；
In the present embodiment, after user triggers refrigeration or dehumidification mode power-on instruction, compressor and outdoor fan are opened not yet
Qi Shi detects the coil temperature T of outdoor heat exchanger by the temperature sensor of outdoor heat exchangerOuter 0.It is transported when air-conditioning system is switched on
After the row predetermined time such as 5~10min (preferably 8min), the coil temperature T of outdoor heat exchanger is detected by temperature sensor2。
Calculate the difference DELTA T between the coil temperature for the outdoor heat exchanger that front and back obtains twice2=TOuter 0-T2, and judge Δ
T2Whether third predetermined value S (S > 0, preferably 2 DEG C) is greater than.
If step S36, the described difference is greater than the third predetermined value, controls the air-conditioning system and shut down.
In the present embodiment, when user triggers refrigeration or dehumidification mode, corresponding outdoor should be heating mode, if it is determined that institute
State difference DELTA T2> S then illustrates that the coil temperature of outdoor heat exchanger after air-conditioning system is switched on is lower, is at this time refrigeration for outdoor
Or dehumidifier mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In the fourth embodiment, as shown in figure 5, on the basis of above-mentioned shown in FIG. 1, the step S3 includes:
Step S37, when the predetermined running mode is heating mode, if what is obtained is the front and back of the outdoor heat exchanger
Whether the difference of coil temperature twice then judges the difference less than the 4th predetermined value；
In the present embodiment, after user triggers heating mode power-on instruction, when compressor and outdoor fan are not yet turned on, lead to
The temperature sensor for crossing outdoor heat exchanger detects the coil temperature T of outdoor heat exchangerOuter 0.When the pre- timing of air-conditioning system booting operation
Between as after 5~10min (preferably 8min), passed through the coil temperature T that temperature sensor detects outdoor heat exchanger2。
Calculate the difference DELTA T between the coil temperature for the outdoor heat exchanger that front and back obtains twice2=TOuter 0-T2, and judge Δ
T2Whether less than the 4th predetermined value-S (S > 0, preferably 2 DEG C).
If step S38, the described difference is less than the 4th predetermined value, controls the air-conditioning system and shut down.
In the present embodiment, when user triggers heating mode, corresponding outdoor should be refrigeration or dehumidification mode, if it is determined that institute
State difference DELTA T2<-S then illustrates that the coil temperature of outdoor heat exchanger after air-conditioning system is switched on is got higher, is at this time heating mode.
Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
Of course, it should be understood that first predetermined value-S and second predetermined value S, third predetermined value S and the 4th predetermined value-S,
The whether equal relationship of the positive and negative values and size being not limited in the present embodiment can also be in other embodiments it
His numerical value.
In one embodiment, as shown in fig. 6, on the basis of above-mentioned shown in FIG. 1, after the step S3 further include:
Step S4, when controlling air-conditioning system shutdown, fault message is prompted.
In the present embodiment, when controlling air-conditioning system shutdown, fault message can be shown by the display screen of indoor unit, also
Fault message can also be sent on the pre-registered cell-phone number of user by voice broadcast fault message.Specific event
Barrier information may include: four-way valve abnormal (such as four-way valve is stuck), electric-control system exception (signal sends abnormal etc.).In this way,
When the actual motion mode and predetermined running mode of air-conditioning system are inconsistent, it not only can control in time air-conditioning system and stop automatically
Machine prevents further system injury, and user or maintenance man can also be facilitated to find the problem in time, so as to more quickly solve
Certainly problem, and then improve user experience.
In one embodiment, it as shown in fig. 7, on the basis of above-mentioned Fig. 1 or shown in fig. 6, is also wrapped after the step S2
It includes:
If step S5, the described difference is unsatisfactory for range corresponding with the predetermined running mode, the air-conditioning system is controlled
System continues to run.
In the present embodiment, if under refrigeration or dehumidification mode, the difference of calculating not with it is right under the refrigeration or dehumidification mode
In the range of answering, then show that current air-conditioning system is normal, therefore, control air-conditioning system keeps current operating conditions；Similarly, if
In a heating mode, the difference of calculating then shows that current air-conditioning system is normal not in the range corresponding under heating mode, because
This, control air-conditioning system keeps current operating conditions.
To achieve the above object, in one embodiment, described the present invention also provides a kind of air-conditioning system 100 referring to Fig. 8
Air-conditioning system 100 includes:
Module 10 is obtained, reads interior for obtaining the air-conditioning predetermined running mode of user's selection, and after air-conditioning booting
The coil temperature of heat exchanger or outdoor heat exchanger；
In the present embodiment, air-conditioning system includes the system of the compositions such as compressor, condenser, evaporator, four-way valve, throttle part
The circuit control system of the compositions such as cooling system and automatically controlled, temperature sensor.Side indoors passes through the centre of heat exchanger indoors
Temperature sensor is placed in coil pipe position, to detect the coil temperature T of indoor heat exchangerInterior 0.In outside, can also be changed in outdoor
Temperature sensor is placed in the intermediate coil pipe position of hot device, to detect the coil temperature T of outdoor heat exchangerOuter 0.When air-conditioning system is run
When, there are heat exchanges between the indoor unit and room air of air-conditioning system, namely there are the temperature difference.It may determine that sky using the temperature difference
Whether the currently running mode of adjusting system is consistent with the air-conditioning predetermined running mode of user's selection, therefore, it is determined that current air-conditioning system
It is whether abnormal.
In the present embodiment, a preferably key power on mode, namely when user is in selection refrigeration, dehumidifying, heating or air-supply etc.
When mode, i.e. starting air-conditioning is switched on and corresponds to the mode for running selection.
Computing module 20, for reading the indoor heat exchanger or outdoor heat exchange after air-conditioning system runs the predetermined time
The coil temperature of device, and calculate the indoor heat exchanger that front and back obtains twice or the outdoor heat exchanger that front and back obtains twice
Coil temperature between difference；
In the present embodiment, after air-conditioning system is switched on operation predetermined time such as 5~10min (preferably 8min), institute is read
State the coil temperature T of indoor heat exchanger1.Then the difference between the coil temperature for the indoor heat exchanger that front and back obtains twice is calculated
ΔT1=TInterior 0-T1；Or read the coil temperature T2 of the outdoor heat exchanger.Then the outdoor heat exchanger that front and back obtains twice is calculated
Coil temperature between difference DELTA T2=TOuter 0-T2。
Can be under any operational mode, the coil temperature of the indoor heat exchanger or outdoor heat exchanger that take front and back to obtain twice
Between difference, if obtain be indoor heat exchanger Δ T1=T0-T1, can also be selected according to different predetermined running modes
Different calculating difference methods is taken, if predetermined running mode is refrigeration or dehumidification mode, then difference is Δ T=TInterior 0-T1；If pre-
Determining operational mode is heating mode, then difference is Δ T=T1-TInterior 0, certainly, in other embodiments, difference can also be taken in turn
Value, the present invention is to this and is not especially limited.If that obtain is the Δ T of outdoor heat exchanger2=TOuter 0-T2, equally can as above set
It sets, details are not described herein again.
Control module 30, if for difference satisfaction range corresponding with the predetermined running mode, described in control
Air-conditioning system is shut down.
It is described when determining whether air-conditioning system is abnormal when the predetermined running mode difference of user's selection in the present embodiment
The corresponding range of difference is also different.It is such as switched on after user selects heating mode, indoor heat exchanger is to indoor heat release, indoor heat exchange
Temperature increases when the coil temperature of device is compared to booting, if the coil temperature of indoor heat exchanger is lower instead, illustrates existing
What it is in operation is refrigeration or dehumidification mode, then the predetermined running mode and actual motion mode of user's selection are inconsistent.Work as client
Be switched on after selection refrigeration or dehumidification mode, room heat exchanger from indoor absorption heat, the coil temperature of indoor heat exchanger compared to
Temperature reduces when booting, if the coil temperature of indoor heat exchanger is got higher instead, illustrates the heating mode run now, then
The predetermined running mode and actual motion mode of user's selection are inconsistent.Example above illustrates that the switching of four-way valve is asked
Topic, as four-way valve is likely to occur failure or stuck, it is also possible to which electric-control system goes wrong, and does not send normal signal to four-way
Valve.
Similarly, the indoor heat exchange of air-conditioning system and outdoor heat exchange are two opposite processes, if indoor for heating, room
Outer is refrigeration, and therefore, the coil temperature of outdoor heat exchanger can also correspond to judgement refrigeration or be made according to the temperature gap of front and back
Heat, details are not described herein again.
Air-conditioning system provided by the invention is switched on by obtaining the air-conditioning predetermined running mode of user's selection, and in air-conditioning
The coil temperature for reading indoor heat exchanger or outdoor heat exchanger afterwards, then after air-conditioning system runs the predetermined time, described in reading
The coil temperature of indoor heat exchanger or outdoor heat exchanger, and the indoor heat exchanger obtained twice before and after calculating or front and back are twice
Difference between the coil temperature of the outdoor heat exchanger obtained, if difference satisfaction is corresponding with the predetermined running mode
Range, then control the air-conditioning system and shut down.In this way, air conditioning operating mode set by user and actual operational mode not
When consistent, air-conditioning system autostop is controlled in time, further system injury is prevented, so that it is guaranteed that the safety of air-conditioning system
Property.
In the first embodiment, as shown in figure 9, on the basis of above-mentioned shown in Fig. 8, the control module 30 includes:
Judging unit 301 is used for when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the room
The difference of the front and back of interior heat exchanger coil temperature twice, then judge whether the difference is less than first predetermined value；
In the present embodiment, after user triggers refrigeration or dehumidification mode power-on instruction, compressor and indoor and outdoor blower do not have also
When having unlatching, by the temperature sensor of indoor heat exchanger, the coil temperature T of indoor heat exchanger is detected0.When air-conditioning system is switched on
After running predetermined time such as 5~10min (preferably 8min), the coil temperature of indoor heat exchanger is detected by temperature sensor
T1。
Calculate the difference DELTA T between the coil temperature for the indoor heat exchanger that front and back obtains twice1=TIt is interior0-T1, and judge Δ T
Whether first predetermined value-S (S > 0, preferably 2 DEG C) is less than.
Control unit 302 controls the air-conditioning system and shuts down if being less than the first predetermined value for the difference.
In the present embodiment, if it is determined that the difference DELTA T1<-S then illustrates indoor heat exchanger after air-conditioning system is switched on
Coil temperature is got higher, and is at this time heating mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In a second embodiment, as shown in figure 9, on the basis of above-mentioned shown in Fig. 8, the control module 30 includes:
Judging unit 301 is used for when the predetermined running mode is heating mode, if what is obtained is the indoor heat exchange
The difference of the front and back of device coil temperature twice, then judge whether the difference is greater than second predetermined value；
In the present embodiment, after user triggers heating mode power-on instruction, when compressor and indoor and outdoor blower are not yet turned on,
By the temperature sensor of indoor heat exchanger, the coil temperature T of indoor heat exchanger is detectedInterior 0.When air-conditioning system booting operation is predetermined
After time such as 5~10min (preferably 8min), the coil temperature T of indoor heat exchanger is detected by temperature sensor1。
Calculate the difference DELTA T between the coil temperature for the indoor heat exchanger that front and back obtains twice1=TInterior 0-T1, and judge Δ
T1Whether second predetermined value S (S > 0, preferably 2 DEG C) is greater than.
Control unit 302 controls the air-conditioning system and shuts down if being greater than the second predetermined value for the difference.
In the present embodiment, if it is determined that the difference DELTA T1> S then illustrates the disk of indoor heat exchanger after air-conditioning system booting
Tube temperature degree is lower, and is at this time refrigeration or dehumidifier mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In the third embodiment, as shown in figure 9, on the basis of above-mentioned shown in Fig. 8, the control module 30 includes:
Judging unit 301 is used for when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the room
The difference of the front and back of external heat exchanger coil temperature twice, then judge whether the difference is greater than third predetermined value；
In the present embodiment, after user triggers refrigeration or dehumidification mode power-on instruction, compressor and outdoor fan are opened not yet
Qi Shi detects the coil temperature T of outdoor heat exchanger by the temperature sensor of outdoor heat exchangerOuter 0.It is transported when air-conditioning system is switched on
After the row predetermined time such as 5~10min (preferably 8min), the coil temperature T of outdoor heat exchanger is detected by temperature sensor2。
Calculate the difference DELTA T between the coil temperature for the outdoor heat exchanger that front and back obtains twice2=TOuter 0-T2, and judge Δ
T2Whether third predetermined value S (S > 0, preferably 2 DEG C) is greater than.
Control unit 302 controls the air-conditioning system and shuts down if being greater than the third predetermined value for the difference.
In the present embodiment, when user triggers refrigeration or dehumidification mode, corresponding outdoor should be heating mode, if it is determined that institute
State difference DELTA T2> S then illustrates that the coil temperature of outdoor heat exchanger after air-conditioning system is switched on is lower, is at this time refrigeration for outdoor
Or dehumidifier mode.Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
In the fourth embodiment, as shown in figure 9, on the basis of above-mentioned shown in Fig. 8, the control module 30 includes:
Judging unit 301 is used for when the predetermined running mode is heating mode, if what is obtained is the outdoor heat exchange
Whether the difference of the front and back of device coil temperature twice, then judge the difference less than the 4th predetermined value；
In the present embodiment, after user triggers heating mode power-on instruction, when compressor and outdoor fan are not yet turned on, lead to
The temperature sensor for crossing outdoor heat exchanger detects the coil temperature T of outdoor heat exchangerOuter 0.When the pre- timing of air-conditioning system booting operation
Between as after 5~10min (preferably 8min), passed through the coil temperature T that temperature sensor detects outdoor heat exchanger2。
Calculate the difference DELTA T between the coil temperature for the outdoor heat exchanger that front and back obtains twice2=TOuter 0-T2, and judge Δ
T2Whether less than the 4th predetermined value-S (S > 0, preferably 2 DEG C).
Control unit 302 controls the air-conditioning system and shuts down if being less than the 4th predetermined value for the difference.
In the present embodiment, when user triggers heating mode, corresponding outdoor should be refrigeration or dehumidification mode, if it is determined that institute
State difference DELTA T2<-S then illustrates that the coil temperature of outdoor heat exchanger after air-conditioning system is switched on is got higher, is at this time heating mode.
Therefore, air-conditioning system is abnormal, and hard stop is needed to handle.
Of course, it should be understood that first predetermined value-S and second predetermined value S, third predetermined value S and the 4th predetermined value-S,
The whether equal relationship of the positive and negative values and size being not limited in the present embodiment can also be in other embodiments it
His numerical value.
In one embodiment, as shown in Figure 10, on the basis of above-mentioned shown in Fig. 8, the air-conditioning system 100 further include:
Cue module 40, for prompting fault message when controlling air-conditioning system shutdown.
In the present embodiment, when controlling air-conditioning system shutdown, fault message can be shown by the display screen of indoor unit, also
Fault message can also be sent on the pre-registered cell-phone number of user by voice broadcast fault message.Specific event
Barrier information may include: four-way valve abnormal (such as four-way valve is stuck), electric-control system exception (signal sends abnormal etc.).In this way,
When the actual motion mode and predetermined running mode of air-conditioning system are inconsistent, it not only can control in time air-conditioning system and stop automatically
Machine prevents further system injury, and user or maintenance man can also be facilitated to find the problem in time, so as to more quickly solve
Certainly problem, and then improve user experience.
In one embodiment, on the basis of above-mentioned Fig. 8 or shown in Fig. 10, the control module 30 is also used to:
If the difference is unsatisfactory for range corresponding with the predetermined running mode, the air-conditioning system is controlled after reforwarding
Row.
In the present embodiment, if under refrigeration or dehumidification mode, the difference of calculating not with it is right under the refrigeration or dehumidification mode
In the range of answering, then show that current air-conditioning system is normal, therefore, control air-conditioning system keeps current operating conditions；Similarly, if
In a heating mode, the difference of calculating then shows that current air-conditioning system is normal not in the range corresponding under heating mode, because
This, control air-conditioning system keeps current operating conditions.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of halt control method of air-conditioning system, which is characterized in that the halt control method of the air-conditioning system include with
Lower step:
The air-conditioning predetermined running mode of user's selection is obtained, and reads indoor heat exchanger or outdoor heat exchanger after air-conditioning booting
Coil temperature；
After air-conditioning system runs the predetermined time, the coil temperature of the indoor heat exchanger or outdoor heat exchanger is read, and calculate
Difference between the coil temperature for the outdoor heat exchanger that the indoor heat exchanger or front and back that front and back obtains twice obtain twice
Value；
If the difference meets range corresponding with the predetermined running mode, the predetermined running mode and practical fortune are determined
Row mode is inconsistent, and controls the air-conditioning system and shut down.
2. the halt control method of air-conditioning system as described in claim 1, which is characterized in that if the difference meet with
The corresponding range of the predetermined running mode, then determine that the predetermined running mode and actual motion mode are inconsistent, and control
The air-conditioning system shut down the step of include:
It is refrigeration or when dehumidification mode in the predetermined running mode, if what is obtained is the front and back disk twice of the indoor heat exchanger
The difference of tube temperature degree, then judge whether the difference is less than first predetermined value；
If the difference is less than the first predetermined value, determine that the predetermined running mode and actual motion mode are inconsistent,
And it controls the air-conditioning system and shuts down.
3. the halt control method of air-conditioning system as described in claim 1, which is characterized in that if the difference meet with
The corresponding range of the predetermined running mode, then determine that the predetermined running mode and actual motion mode are inconsistent, and control
The air-conditioning system shut down the step of include:
When the predetermined running mode is heating mode, if what is obtained is the front and back coil temperature twice of the indoor heat exchanger
Difference, then judge whether the difference is greater than second predetermined value；
If the difference is greater than the second predetermined value, determine that the predetermined running mode and actual motion mode are inconsistent,
And it controls the air-conditioning system and shuts down.
4. the halt control method of air-conditioning system as described in claim 1, which is characterized in that if the difference meet with
The corresponding range of the predetermined running mode, then determine that the predetermined running mode and actual motion mode are inconsistent, and control
The air-conditioning system shut down the step of include:
It is refrigeration or when dehumidification mode in the predetermined running mode, if what is obtained is the front and back disk twice of the outdoor heat exchanger
The difference of tube temperature degree, then judge whether the difference is greater than third predetermined value；
If the difference is greater than the third predetermined value, determine that the predetermined running mode and actual motion mode are inconsistent,
And it controls the air-conditioning system and shuts down.
5. the halt control method of air-conditioning system as described in claim 1, which is characterized in that if the difference meet with
The corresponding range of the predetermined running mode, then determine that the predetermined running mode and actual motion mode are inconsistent, and control
The air-conditioning system shut down the step of include:
When the predetermined running mode is heating mode, if what is obtained is the front and back coil temperature twice of the outdoor heat exchanger
Difference, then judge the difference whether less than the 4th predetermined value；
If the difference is less than the 4th predetermined value, determine that the predetermined running mode and actual motion mode are inconsistent,
And it controls the air-conditioning system and shuts down.
6. the halt control method of air-conditioning system as described in claim 1, which is characterized in that the shutdown control of the air-conditioning system
Method processed further include:
When controlling air-conditioning system shutdown, fault message is prompted.
7. the halt control method of air-conditioning system as described in claim 1, which is characterized in that the shutdown control of the air-conditioning system
Method processed further include:
If the difference is unsatisfactory for range corresponding with the predetermined running mode, controls the air-conditioning system and continue to run.
8. a kind of air-conditioning system, which is characterized in that the air-conditioning system includes:
Module is obtained, reads indoor heat exchanger for obtaining the air-conditioning predetermined running mode of user's selection, and after air-conditioning booting
Or the coil temperature of outdoor heat exchanger；
Computing module, for reading the disk of the indoor heat exchanger or outdoor heat exchanger after air-conditioning system runs the predetermined time
Tube temperature degree, and calculate the coil pipe of the indoor heat exchanger that front and back obtains twice or the outdoor heat exchanger that front and back obtains twice
Difference between temperature；
Control module determines the predetermined fortune if meeting range corresponding with the predetermined running mode for the difference
Row mode and actual motion mode are inconsistent, and control the air-conditioning system and shut down.
9. air-conditioning system as claimed in claim 8, which is characterized in that the control module includes:
Judging unit is used for when the predetermined running mode is refrigeration or dehumidification mode, if what is obtained is the indoor heat exchange
The difference of the front and back of device coil temperature twice, then judge whether the difference is less than first predetermined value；
Control unit determines the predetermined running mode and practical fortune if being less than the first predetermined value for the difference
Row mode is inconsistent, and controls the air-conditioning system and shut down.
10. air-conditioning system as claimed in claim 8, which is characterized in that the control module includes:
Judging unit, for when the predetermined running mode is heating mode, if before what is obtained is the indoor heat exchanger
The difference of coil temperature twice afterwards, then judge whether the difference is greater than second predetermined value；
Control unit determines the predetermined running mode and practical fortune if being greater than the second predetermined value for the difference
Row mode is inconsistent, and controls the air-conditioning system and shut down.
11. air-conditioning system as claimed in claim 8, which is characterized in that the control module includes: judging unit, is used for
The predetermined running mode is refrigeration or when dehumidification mode, if what is obtained is the front and back coil temperature twice of the outdoor heat exchanger
Difference, then judge whether the difference is greater than third predetermined value；
Control unit determines the predetermined running mode and practical fortune if being greater than the third predetermined value for the difference
Row mode is inconsistent, and controls the air-conditioning system and shut down.
12. air-conditioning system as claimed in claim 8, which is characterized in that the control module includes:
Judging unit, for when the predetermined running mode is heating mode, if before what is obtained is the outdoor heat exchanger
Whether the difference of coil temperature twice afterwards, then judge the difference less than the 4th predetermined value；
Control unit determines the predetermined running mode and practical fortune if being less than the 4th predetermined value for the difference
Row mode is inconsistent, and controls the air-conditioning system and shut down.
13. air-conditioning system as claimed in claim 8, which is characterized in that the air-conditioning system further include:
Cue module, for prompting fault message when controlling air-conditioning system shutdown.
14. air-conditioning system as claimed in claim 8, which is characterized in that the control module is also used to:
If the difference is unsatisfactory for range corresponding with the predetermined running mode, controls the air-conditioning system and continue to run.
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| CN107906679A (en) * | 2017-10-31 | 2018-04-13 | 广东美的暖通设备有限公司 | The halt control method of air conditioner, shutdown control system, air conditioner |
| CN109539493A (en) * | 2018-11-21 | 2019-03-29 | 奥克斯空调股份有限公司 | Air-conditioner outdoor unit control method, device and air conditioner |
| CN110469953B (en) * | 2019-08-26 | 2021-07-16 | 广东美的制冷设备有限公司 | Detection method for exhaust temperature sensor of air conditioner, air conditioner and medium |
| CN111706957B (en) * | 2020-05-25 | 2021-05-18 | 珠海格力电器股份有限公司 | Method and device for detecting reversing abnormality of four-way valve, storage medium and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144958A (en) * | 2008-12-16 | 2010-07-01 | Mitsubishi Electric Corp | Air conditioner |
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner, and method and device for detecting air conditioner |
| JP2014105967A (en) * | 2012-11-29 | 2014-06-09 | Fujitsu General Ltd | Air conditioning equipment |
| CN104949266A (en) * | 2015-06-04 | 2015-09-30 | 广东美的制冷设备有限公司 | Air conditioner and refrigerant leakage detection method of air conditioner |
| CN105783203A (en) * | 2016-04-28 | 2016-07-20 | 广东美的暖通设备有限公司 | Air conditioner and abnormal detection method for indoor unit of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3589203B2 (en) * | 2001-07-17 | 2004-11-17 | ダイキン工業株式会社 | Air conditioner |
-
2017
- 2017-03-08 CN CN201710135880.7A patent/CN107023935B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144958A (en) * | 2008-12-16 | 2010-07-01 | Mitsubishi Electric Corp | Air conditioner |
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner, and method and device for detecting air conditioner |
| JP2014105967A (en) * | 2012-11-29 | 2014-06-09 | Fujitsu General Ltd | Air conditioning equipment |
| CN104949266A (en) * | 2015-06-04 | 2015-09-30 | 广东美的制冷设备有限公司 | Air conditioner and refrigerant leakage detection method of air conditioner |
| CN105783203A (en) * | 2016-04-28 | 2016-07-20 | 广东美的暖通设备有限公司 | Air conditioner and abnormal detection method for indoor unit of air conditioner |
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