CN105333497B - The control method of air-conditioning system and air-conditioning system - Google Patents
The control method of air-conditioning system and air-conditioning system Download PDFInfo
- Publication number
- CN105333497B CN105333497B CN201410390151.2A CN201410390151A CN105333497B CN 105333497 B CN105333497 B CN 105333497B CN 201410390151 A CN201410390151 A CN 201410390151A CN 105333497 B CN105333497 B CN 105333497B
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- heat exchanger
- air
- conditioning system
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of air-conditioning system and the control method of air-conditioning system, wherein, the air-conditioning system includes：Fluid reservoir, compressor, indoor heat exchanger, outdoor heat exchanger, throttling set, detection device, auxiliary refrigerant tank, the first solenoid valve and control device, wherein, high-temperature high-pressure refrigerant is stored in auxiliary refrigerant tank, detection device is connected with outdoor heat exchanger, the outlet of auxiliary refrigerant tank is connected by the first solenoid valve with outdoor heat exchanger, control device is connected respectively with detection device and the first solenoid valve, detection device, for detecting the coil temperature of outdoor heat exchanger；Control device is in heating operation state and when coil temperature is less than the first preset temperature for air-conditioning system, and the first solenoid valve of control is opened, so that high-temperature high-pressure refrigerant flows into outdoor heat exchanger to defrost.The air-conditioning system of the embodiment of the present invention defrosts to outdoor unit while indoor unit heating capacity is not influenced, improves usage comfort.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to the control methods of a kind of air-conditioning system and air-conditioning system.
Background technology
For heat pump type air conditioner when outdoor environment temperature is relatively low, outdoor heat exchanger can generate frosting.Traditional defrosting side
Formula is：By the tangential defrost of four-way valve after outdoor heat exchanger frosting, i.e., by the way that four-way valve is controlled to commutate, by current heating
Pattern switching is refrigeration mode, so that outdoor heat exchanger heat release is with defrost, still, stopped system in room during due to defrost
Heat, the institute's room temperature that can cause in this approach fluctuation is larger, comfort level is greatly reduced, so as to cause poor user experience.
The content of the invention
It is contemplated that it solves at least some of the technical problems in related technologies.For this purpose, the present invention
One purpose is to propose a kind of air-conditioning system, the system realize while indoor unit heating capacity is not influenced to outdoor unit into
Row defrosting, reduces the fluctuation of room temperature, substantially increases air-conditioning comforts of use, so as to improve user experience.
Second object of the present invention is to propose a kind of control method of air-conditioning system.
To achieve these goals, the air-conditioning system of first aspect present invention embodiment, including：Fluid reservoir, compressor, room
Inside heat exchanger, outdoor heat exchanger, throttling set, detection device, auxiliary refrigerant tank, the first solenoid valve and control device,
In, be stored with high-temperature high-pressure refrigerant in the auxiliary refrigerant tank, the compressor respectively with the fluid reservoir, the indoor
One end of heat exchanger is connected with one end of the outdoor heat exchanger, the throttling set respectively with the indoor heat exchanger
The other end is connected with the other end of the outdoor heat exchanger, and the detection device is connected with the outdoor heat exchanger, described
Auxiliary refrigerant tank outlet be connected by first solenoid valve with the outdoor heat exchanger, the control device respectively with institute
It states detection device with first solenoid valve to be connected, the detection device, for detecting the coil pipe temperature of the outdoor heat exchanger
Degree；The control device is in heating operation state for the air-conditioning system and is preset when the coil temperature is less than first
During temperature, first solenoid valve is controlled to open so that the high-temperature high-pressure refrigerant flow into the outdoor heat exchanger with into
Row defrosting.
Air-conditioning system according to embodiments of the present invention, when opening heating mode, if detection device detects coil pipe temperature
Degree is less than the first preset temperature, then is removed by the high-temperature high-pressure refrigerant heat exchanging device collected in advance in refrigerant tank is aided in
Frost realizes and defrosts while indoor unit heating capacity is not influenced to outdoor unit, reduces the fluctuation of room temperature, significantly
Air-conditioning comforts of use are improved, so as to improve user experience.
In one embodiment of the invention, the control device, is additionally operable to：It is pre- that first is opened in first solenoid valve
If after the time, judging whether the coil temperature is greater than or equal to the second preset temperature, if it is, control first electromagnetism
Valve is closed, wherein, second preset temperature is greater than or equal to first preset temperature.
In one embodiment of the invention, further include：Second solenoid valve, one end of the second solenoid valve with it is described auxiliary
The entrance of refrigerant tank is helped to be connected, the other end of the second solenoid valve respectively with the throttling set and the indoor heat exchanger
The other end be connected, the second solenoid valve is also connected with the control device, and the control device is additionally operable to described first
After solenoid valve opens first preset time, if the coil temperature is less than second preset temperature, described in control
Second solenoid valve is opened.
In one embodiment of the invention, the control device, is additionally operable to：It is pre- that second is opened in the second solenoid valve
If after the time, if the coil temperature is greater than or equal to second preset temperature, control first solenoid valve and institute
Second solenoid valve is stated to be turned off.
In one embodiment of the invention, further include：3rd solenoid valve, one end of the 3rd solenoid valve with it is described auxiliary
The entrance of refrigerant tank is helped to be connected, the other end of the 3rd solenoid valve is connected with one end of the indoor heat exchanger, and described
Three solenoid valves are also connected with the control device, the control device, are additionally operable to open described second in the second solenoid valve
After preset time, if the coil temperature is less than second preset temperature, the 3rd solenoid valve is controlled to open, and is controlled
The second solenoid valve is made to close.
In one embodiment of the invention, further include：Four-way reversing valve, the four-way reversing valve respectively with the liquid storage
Tank, the compressor, the control device, one end phase of one end of the indoor heat exchanger and the outdoor heat exchanger
Even, the control device is additionally operable to after the 3rd solenoid valve opens the 3rd preset time, if the coil temperature is still small
In second preset temperature, then first solenoid valve and the 3rd solenoid valve is controlled to close, and the four-way is controlled to change
It commutates to valve, to defrost to the outdoor heat exchanger.
In one embodiment of the invention, the control device, is additionally operable to：When receiving shutdown command, institute is controlled
It states the first solenoid valve and the second solenoid valve is closed, and the 3rd solenoid valve is controlled to open and default by the 4th
The 3rd solenoid valve is controlled to close after time, the compressor is then controlled to close, so that the air-conditioning system is out of service.
In one embodiment of the invention, the control device, is additionally operable to：When the air-conditioning system is heating fortune for the first time
During row, after the compressor start runs the 5th preset time, the second solenoid valve is controlled to open and is passing through the 6th
The second solenoid valve is controlled to close after preset time again.
To achieve these goals, the control method of the air-conditioning system of second aspect of the present invention embodiment, wherein, the sky
Adjusting system includes：Fluid reservoir, compressor, indoor heat exchanger, outdoor heat exchanger, throttling set, detection device, auxiliary refrigerant
Tank and the first solenoid valve, wherein, be stored with high-temperature high-pressure refrigerant in the auxiliary refrigerant tank, the compressor respectively with it is described
Fluid reservoir, one end of the indoor heat exchanger are connected with one end of the outdoor heat exchanger, the throttling set respectively with
The other end of the indoor heat exchanger is connected with the other end of the outdoor heat exchanger, the detection device and the outdoor
Side heat exchanger is connected, and the outlet of the auxiliary refrigerant tank is connected by first solenoid valve with the outdoor heat exchanger, institute
The method of stating comprises the following steps：The coil temperature of the outdoor heat exchanger is detected by the detection device；When the air-conditioning
System is in heating operation state and when the coil temperature is less than the first preset temperature, and first solenoid valve is controlled to beat
It opens, so that the high-temperature high-pressure refrigerant flows into the outdoor heat exchanger to defrost.
The control method of air-conditioning system according to embodiments of the present invention, when air-conditioning system opens heating mode, if inspection
It surveys device and detects that coil temperature is less than the first preset temperature, then by collecting the high temperature and pressure system in refrigerant tank is aided in advance
Cryogen heat exchanging device defrosts, and realizes and defrosts while indoor unit heating capacity is not influenced to outdoor unit, reduces
The fluctuation of room temperature substantially increases air-conditioning comforts of use, so as to improve user experience.
In one embodiment of the invention, further include：After first solenoid valve opens the first preset time, judge
Whether the coil temperature is greater than or equal to the second preset temperature；If it is, control first solenoid valve is closed, wherein,
Second preset temperature is greater than or equal to first preset temperature.
In one embodiment of the invention, wherein, the air-conditioning system further includes second solenoid valve, second electromagnetism
One end of valve is connected with the entrance of the auxiliary refrigerant tank, the other end of the second solenoid valve respectively with the throttling set and
The other end of the indoor heat exchanger is connected, and the method further includes：It is default that described first is opened in first solenoid valve
After time, if the coil temperature is less than second preset temperature, the second solenoid valve is controlled to open.
In one embodiment of the invention, further include：After the second solenoid valve opens the second preset time, if
The coil temperature is greater than or equal to second preset temperature, then controls first solenoid valve and the second solenoid valve equal
It closes.
In one embodiment of the invention, wherein, the air-conditioning system further includes the 3rd solenoid valve, the 3rd electromagnetism
One end of valve is connected with the entrance of the auxiliary refrigerant tank, the other end and the indoor heat exchanger of the 3rd solenoid valve
One end is connected, and the method further includes：After the second solenoid valve opens second preset time, if the coil pipe temperature
Degree is less than second preset temperature, then the 3rd solenoid valve is controlled to open, and the second solenoid valve is controlled to close.
In one embodiment of the invention, wherein, the air-conditioning system further includes four-way reversing valve, the four-way commutation
Valve one end with the fluid reservoir, the compressor, one end of the indoor heat exchanger and the outdoor heat exchanger respectively
It is connected, the method further includes：The 3rd solenoid valve open the 3rd preset time after, if the coil temperature still less than
Second preset temperature then controls first solenoid valve and the 3rd solenoid valve to close, and the four-way is controlled to commutate
Valve commutates, to defrost to the outdoor heat exchanger.
In one embodiment of the invention, further include：When receiving shutdown command, controlled according to the shutdown command
First solenoid valve and the second solenoid valve are closed, and the 3rd solenoid valve is controlled to open；And pre- by the 4th
If the 3rd solenoid valve is controlled to close after the time, the compressor is then controlled to close, so that the air-conditioning system stops fortune
Row.
In one embodiment of the invention, further include：When the air-conditioning system is heating operation for the first time, in the pressure
After contracting machine starts the 5th preset time of operation, the second solenoid valve is controlled to open；And it after the 6th preset time, controls
The second solenoid valve is made to close.
Description of the drawings
Fig. 1 is the structure diagram of air-conditioning system according to an embodiment of the invention；
Fig. 2 is the structure diagram of air-conditioning system in accordance with another embodiment of the present invention；
Fig. 3 is the structure diagram of the air-conditioning system of another embodiment according to the present invention；
Fig. 4 is the structure diagram of the air-conditioning system of another embodiment according to the present invention；
Fig. 5 is the flow chart of the control method of air-conditioning system according to an embodiment of the invention.
Reference numeral：
Fluid reservoir 10, compressor 20, indoor heat exchanger 30, outdoor heat exchanger 40, throttling set 50, detection device
60th, refrigerant tank 70, the first solenoid valve 80, control device 90, second solenoid valve 100, the 3rd solenoid valve 110, four-way commutation are aided in
Valve 120, shut-off valve 31 and shut-off valve 32.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Fig. 1 is the structural representation of air-conditioning system according to an embodiment of the invention.As shown in Figure 1, the embodiment of the present invention
Air-conditioning system, including：Fluid reservoir 10, compressor 20, indoor heat exchanger 30, outdoor heat exchanger 40, throttling set 50, inspection
Survey device 60, auxiliary refrigerant tank 70, the first solenoid valve 80 and control device 90.Wherein, aid in being stored with high temperature in refrigerant tank 70
High-pressure refrigerant.And auxiliary refrigerant tank 70 carries insulating layer.
Wherein, compressor 20 respectively with fluid reservoir 10, one end of indoor heat exchanger 30 and outdoor heat exchanger 40 one
End is connected, and the other end of the throttling set 50 respectively with the other end of indoor heat exchanger 30 and outdoor heat exchanger 40 is connected, inspection
It surveys device 60 with outdoor heat exchanger 40 to be connected, the outlet of auxiliary refrigerant tank 70 passes through the first solenoid valve 80 and outdoor heat exchanger
40 are connected, and control device 90 is connected respectively with 60 and first solenoid valve 80 of detection device.
Detection device 60 is used to detect the coil temperature of outdoor heat exchanger 40.
In one embodiment of the invention, detection device 60 is outdoor unit coil temperature sensor, for detecting coil pipe
Temperature T.
Control device 90 is in heating operation state and when coil temperature is less than the first preset temperature for air-conditioning system,
The first solenoid valve 80 is controlled to open, so that high-temperature high-pressure refrigerant flows into outdoor heat exchanger 40 to defrost.
Specifically, for example, when air-conditioning system is in heating operation, if detection device 60 detects that coil temperature T is less than 2
DEG C, then air-conditioning system needs to open and enter defrost pattern.More specifically, the at this point, control auxiliary refrigerant tank 70 of control device 90
The first solenoid valve 80 between outdoor heat exchanger 40 is opened, so that the high-temperature high-pressure refrigerant stored in auxiliary refrigerant tank 70
Outdoor heat exchanger 40 is directly entered, defrost is carried out to outdoor heat exchanger 40.
The air-conditioning system of the embodiment of the present invention, when opening heating mode, if detection device detects that coil temperature is small
In the first preset temperature, then defrosted by the high-temperature high-pressure refrigerant heat exchanging device collected in advance in refrigerant tank is aided in,
It realizes and defrosts while indoor unit heating capacity is not influenced to outdoor unit, reduce the fluctuation of room temperature, carry significantly
High air-conditioning comforts of use, so as to improve user experience.
In one embodiment of the invention, the control device 90 is additionally operable to：It is pre- that first is opened in the first solenoid valve 80
If after the time, judging whether coil temperature is greater than or equal to the second preset temperature, if it is, the first solenoid valve 80 of control closes
It closes, wherein, the second preset temperature is greater than or equal to the first preset temperature.
Specifically, if for example, after the first solenoid valve 80 opens 1 minute, coil temperature T is greater than or equal to 3 DEG C, then says
Bright defrost is completed, and control device 90 then controls the first solenoid valve 80 to close, to terminate defrost.Wherein, set the second preset temperature
It is set to more than or equal to the first preset temperature, is to make defrost effect more preferable.
In one embodiment of the invention, as shown in Fig. 2, the air-conditioning system of the embodiment of the present invention, further includes：Second electricity
Magnet valve 100.Wherein, one end of second solenoid valve 100 with aid in refrigerant tank 70 entrance be connected, second solenoid valve 100 it is another
End is connected respectively with throttling set 50 and the other end of indoor heat exchanger 30 is connected, and second solenoid valve 100 is gone back and control device
90 are connected.
Wherein, control device 90 is additionally operable to after the first solenoid valve 80 opens the first preset time, if coil temperature is small
In the second preset temperature, then second solenoid valve 100 is controlled to open.
Specifically, if for example, after the first solenoid valve 80 opens 1 minute, coil temperature T is still less than 3 DEG C, then explanation
Frost is not completed, then control device 90 controls second solenoid valve 100 to open (the first solenoid valve 80 is also open at this time), directly
It connects and drainage refrigerant is supplemented at the outlet of indoor heat exchanger 30 (i.e. the other end of indoor heat exchanger 30) to outside
Heat exchanger 40, to carry out defrost to outdoor heat exchanger 40.
In one embodiment of the invention, control device 90 is additionally operable to：When second solenoid valve 100 is opened second and is preset
Between after, if coil temperature be greater than or equal to the second preset temperature, the first solenoid valve 80 and second solenoid valve 100 is controlled to close
It closes.
Specifically, if for example, after second solenoid valve 100 opens 2 minutes, coil temperature T is greater than or equal to 3 DEG C, then
Illustrate that defrost is completed, control device 90 then controls the first solenoid valve 80 and second solenoid valve 100 to be turned off, to terminate defrost.
In one embodiment of the invention, as shown in figure 3, the air-conditioning system of the embodiment of the present invention, further includes：3rd electricity
Magnet valve 110.Wherein, one end of the 3rd solenoid valve 110 with aid in refrigerant tank 70 entrance be connected, the 3rd solenoid valve 110 it is another
End is connected with one end of indoor heat exchanger 30, and the 3rd solenoid valve 110 is also connected with control device 90.
Wherein, control device 90 is additionally operable to after second solenoid valve 100 opens the second preset time, if coil temperature is small
In the second preset temperature, then the 3rd solenoid valve 110 is controlled to open, and second solenoid valve 100 is controlled to close.
Specifically, if for example, after second solenoid valve 100 opens 2 minutes, coil temperature T then illustrates still less than 3 DEG C
Defrost is not completed, and control device 90 then controls the 3rd solenoid valve 110 to open (the first solenoid valve 80 is also open at this time), and
Control second solenoid valve 100 is closed, i.e. the part in the high-temperature high-pressure refrigerant generated using compressor carries out auxiliary
Frost, the part in the high-temperature high-pressure refrigerant that compressor generates pass through the 3rd solenoid valve 110, the auxiliary electricity of refrigerant tank 70, first
Magnet valve 80 enters outdoor heat exchanger 40, to carry out defrost to outdoor heat exchanger 40.
In one embodiment of the invention, as shown in figure 4, the air-conditioning system of the embodiment of the present invention, further includes：Four-way changes
To valve 120.Four-way reversing valve 120 respectively with fluid reservoir 70, compressor 20, control device 90, indoor heat exchanger 30 one end
It is connected with one end of outdoor heat exchanger 40.In addition, as shown in figure 4, one end of indoor heat exchanger 30 and the other end connect respectively
It is connected to shut-off valve 31 and shut-off valve 32.
Wherein, control device 90 is additionally operable to after the 3rd solenoid valve 110 opens the 3rd preset time, if coil temperature is still
Less than the second preset temperature, then 80 valve of the first electromagnetism and the 3rd solenoid valve 110 is controlled to close, and four-way reversing valve 120 is controlled to change
To defrost to outdoor heat exchanger.
Specifically, if for example, after the 3rd solenoid valve 110 opens 2 minutes, coil temperature T then illustrates still less than 3 DEG C
Still without completion, control device 90 then controls the first solenoid valve 80 and the 3rd solenoid valve 110 to close, and four-way is controlled to commutate for defrost
Valve 120 commutates, will current heating mode be switched to refrigeration mode, to defrost to outdoor heat exchanger.
In one embodiment of the invention, control device 90 is additionally operable to：When receiving shutdown command, the first electricity of control
Magnet valve 80 and second solenoid valve 100 are closed, and the 3rd solenoid valve 110 is controlled to open and controlled after the 4th preset time
It makes the 3rd solenoid valve 120 to close, then compressor 20 is controlled to close, so that air-conditioning system is out of service.
Specifically, when air-conditioning system is shut down, control device 90 controls the first solenoid valve 80 and second solenoid valve 100 to close
It closes, and the 3rd solenoid valve 110 is controlled to open, collect a part of waste heat (i.e. high-temperature high-pressure refrigerant) in refrigerant tank 70 is aided in,
It, can be energy saving for defrosting during heating operation next time.
In one embodiment of the invention, control device 90 is additionally operable to：When air-conditioning system is heating operation for the first time,
After compressor 20 starts the 5th preset time of operation, control second solenoid valve 100 is opened and after the 6th preset time
Second solenoid valve 100 is controlled to close again.
Specifically, when air-conditioning system is heating operation for the first time, after compressor 20 starts five preset time of operation, i.e.,
When compressor 20 it is stable some after, control device 90 controls second solenoid valve 100 to open, pre- in auxiliary refrigerant tank 70 to give
Refrigerant is stored, after the 6th preset time, control device 90 controls second solenoid valve 100 to close again.
In order to realize above-described embodiment, the present invention also proposes a kind of control method of air-conditioning system.
Wherein, air-conditioning system includes：Fluid reservoir, compressor, indoor heat exchanger, outdoor heat exchanger, throttling set, inspection
Device, auxiliary refrigerant tank and the first solenoid valve are surveyed, wherein, it aids in being stored with high-temperature high-pressure refrigerant in refrigerant tank, compressor point
One end not with fluid reservoir, one end of indoor heat exchanger and outdoor heat exchanger is connected, and throttling set changes respectively with indoor
The other end of hot device is connected with the other end of outdoor heat exchanger, and detection device is connected with outdoor heat exchanger, aids in refrigerant tank
Outlet be connected by the first solenoid valve with outdoor heat exchanger.
Fig. 5 is the flow chart of the control method of air-conditioning system according to an embodiment of the invention.As shown in figure 5, this hair
The control method of the air-conditioning system of bright embodiment, comprises the following steps：
S101 detects the coil temperature of outdoor heat exchanger by detection device.
In one embodiment of the invention, detection device is outdoor unit coil temperature sensor, for detection plate tube temperature
Spend T.
S102, when air-conditioning system is in heating operation state and when coil temperature is less than the first preset temperature, control the
One solenoid valve is opened, so that high-temperature high-pressure refrigerant flows into outdoor heat exchanger to defrost.
Specifically, for example, when air-conditioning system is in heating operation, if detection device detects that coil temperature T is less than 2
DEG C, then air-conditioning system needs to open and enter defrost pattern.More specifically, at this point, control auxiliary refrigerant tank and outside heat exchange
The first solenoid valve between device is opened, so that the high-temperature high-pressure refrigerant stored in auxiliary refrigerant tank is directly entered outside heat exchange
Device carries out defrost to outdoor heat exchanger.
The control method of the air-conditioning system of the embodiment of the present invention, when air-conditioning system opens heating mode, if detection dress
It puts and detects that coil temperature is less than the first preset temperature, then by collecting the high-temperature high-pressure refrigerant in refrigerant tank is aided in advance
Heat exchanging device defrosts, and realizes and defrosts while indoor unit heating capacity is not influenced to outdoor unit, reduces room
The fluctuation of temperature substantially increases air-conditioning comforts of use, so as to improve user experience.
In one embodiment of the invention, the control method of air-conditioning system, further includes：First is opened in the first solenoid valve
After preset time, judge whether coil temperature is greater than or equal to the second preset temperature；If it is, the first solenoid valve of control closes
It closes, wherein, the second preset temperature is greater than or equal to the first preset temperature.
Specifically, if for example, after the first solenoid valve opens 1 minute, coil temperature T is greater than or equal to 3 DEG C, then illustrates
Defrost is completed, and the first solenoid valve of control is closed, to terminate defrost.Wherein, the second preset temperature is made to be set greater than or equal to
One preset temperature is to make defrost effect more preferable.
In one embodiment of the invention, wherein, air-conditioning system further includes second solenoid valve, one end of second solenoid valve
Be connected with the entrance for aiding in refrigerant tank, the other end of second solenoid valve respectively with throttling set and the other end of indoor heat exchanger
It is connected.The control method of air-conditioning system, further includes：After the first solenoid valve opens the first preset time, if coil temperature is small
In the second preset temperature, then second solenoid valve is controlled to open.
Specifically, if for example, after the first solenoid valve opens 1 minute, coil temperature T then illustrates defrost still less than 3 DEG C
It does not complete, then control second solenoid valve opens (the first solenoid valve is also open at this time), directly from indoor heat exchanger
Exit be supplemented drainage refrigerant to outdoor heat exchanger, to carry out defrost to outdoor heat exchanger.
In one embodiment of the invention, the control method of air-conditioning system, further includes：Second is opened in second solenoid valve
After preset time, if coil temperature is greater than or equal to the second preset temperature, control the first solenoid valve and second solenoid valve equal
It closes.
Specifically, if for example, after second solenoid valve opens 2 minutes, coil temperature T is greater than or equal to 3 DEG C, then illustrates
Defrost is completed, and the first solenoid valve and second solenoid valve is controlled to be turned off, to terminate defrost.
In one embodiment of the invention, wherein, air-conditioning system further includes the 3rd solenoid valve, one end of the 3rd solenoid valve
It is connected with the entrance for aiding in refrigerant tank, the other end of the 3rd solenoid valve is connected with one end of indoor heat exchanger.Air-conditioning system
Control method further includes：After second solenoid valve opens the second preset time, if coil temperature is less than the second preset temperature,
Then the 3rd solenoid valve is controlled to open, and second solenoid valve is controlled to close.
Specifically, if for example, after second solenoid valve opens 2 minutes, coil temperature T then illustrates defrost still less than 3 DEG C
It does not complete, then the 3rd solenoid valve is controlled to open (the first solenoid valve is also open at this time), and second solenoid valve is controlled to close,
That is, the part in the high-temperature high-pressure refrigerant generated using compressor carries out auxiliary defrost, the high temperature and pressure that compressor generates
A part in refrigerant enters outdoor heat exchanger by the 3rd solenoid valve, auxiliary refrigerant tank, the first solenoid valve, with to outdoor
Side heat exchanger carries out defrost.
In one embodiment of the invention, wherein, air-conditioning system further includes four-way reversing valve, four-way reversing valve respectively with
Fluid reservoir, compressor, one end of indoor heat exchanger are connected with one end of outdoor heat exchanger.The control method of air-conditioning system,
It further includes：After the 3rd solenoid valve opens the 3rd preset time, if coil temperature still less than the second preset temperature, controls the
One solenoid valve and the 3rd solenoid valve are closed, and four-way reversing valve is controlled to commutate, to defrost to outdoor heat exchanger.
Specifically, if for example, after the 3rd solenoid valve opens 2 minutes, coil temperature T then illustrates defrost still less than 3 DEG C
Still without completion, then the first solenoid valve and the 3rd solenoid valve is controlled to close, and four-way reversing valve is controlled to commutate, system that will be current
Heat pattern is switched to refrigeration mode, to defrost to outdoor heat exchanger.
In one embodiment of the invention, the control method of air-conditioning system, further includes：When receiving shutdown command,
According to shutdown command the first solenoid valve and second solenoid valve is controlled to close, and the 3rd solenoid valve is controlled to open；And by
After four preset times the 3rd solenoid valve is controlled to close, then compressor is controlled to close, so that air-conditioning system is out of service.
Specifically, when air-conditioning system is shut down, the first solenoid valve and second solenoid valve is controlled to close, and controls the 3rd electromagnetism
Valve is opened, and collects a part of waste heat (i.e. high-temperature high-pressure refrigerant) in refrigerant tank is aided in, during for heating operation next time
It defrosts, it can be energy saving.
In one embodiment of the invention, the control method of air-conditioning system, further includes：When air-conditioning system is to heat for the first time
During operation, after compressor start runs the 5th preset time, control second solenoid valve is opened；And when default by the 6th
Between after, control second solenoid valve close.
Specifically, when air-conditioning system is heating operation for the first time, after compressor start runs five preset times, that is, work as
After compressor operating stablizes some, control second solenoid valve is opened, and refrigerant is pre-stored to give in auxiliary refrigerant tank, by the 6th
After preset time, then second solenoid valve is controlled to close.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments described in this specification or example and different embodiments or exemplary feature
It closes and combines.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (12)
1. a kind of air-conditioning system, which is characterized in that including：Fluid reservoir, compressor, indoor heat exchanger, outdoor heat exchanger, section
Device, detection device, auxiliary refrigerant tank, the first solenoid valve, second solenoid valve and control device are flowed, wherein, the auxiliary refrigerant
High-temperature high-pressure refrigerant is stored in tank,
Compressor one end with the fluid reservoir, one end of the indoor heat exchanger and the outdoor heat exchanger respectively
It is connected, the throttling set other end phase with the other end of the indoor heat exchanger and the outdoor heat exchanger respectively
Even, the detection device is connected with the outdoor heat exchanger, and the outlet of the auxiliary refrigerant tank passes through first solenoid valve
It is connected with the outdoor heat exchanger, the control device is connected respectively with the detection device and first solenoid valve, institute
The entrance that one end of second solenoid valve is stated with the auxiliary refrigerant tank is connected, the other end of the second solenoid valve respectively with it is described
Throttling set is connected with the other end of the indoor heat exchanger, and the second solenoid valve is also connected with the control device；
The detection device, for detecting the coil temperature of the outdoor heat exchanger；
The control device is in heating operation state for the air-conditioning system and is preset when the coil temperature is less than first
During temperature, first solenoid valve is controlled to open so that the high-temperature high-pressure refrigerant flow into the outdoor heat exchanger with into
Row defrosting；
The control device is additionally operable to, and after first solenoid valve opens the first preset time, judges that the coil temperature is
It is no to be greater than or equal to the second preset temperature, if it is, control first solenoid valve is closed, wherein, the described second default temperature
Degree is greater than or equal to first preset temperature；
The control device is additionally operable to, after first solenoid valve opens first preset time, if the coil pipe temperature
Degree is less than second preset temperature, then the second solenoid valve is controlled to open.
2. air-conditioning system as described in claim 1, which is characterized in that the control device is additionally operable to：
After the second solenoid valve opens the second preset time, preset if the coil temperature is greater than or equal to described second
Temperature then controls first solenoid valve and the second solenoid valve to be turned off.
3. air-conditioning system as claimed in claim 2, which is characterized in that further include：3rd solenoid valve,
One end of 3rd solenoid valve is connected with the entrance of the auxiliary refrigerant tank, the other end of the 3rd solenoid valve and institute
The one end for stating indoor heat exchanger is connected, and the 3rd solenoid valve is also connected with the control device,
The control device is additionally operable to after the second solenoid valve opens second preset time, if the coil pipe temperature
Degree is less than second preset temperature, then the 3rd solenoid valve is controlled to open, and the second solenoid valve is controlled to close.
4. air-conditioning system as claimed in claim 3, which is characterized in that further include：Four-way reversing valve, the four-way reversing valve point
It does not exchange heat with the fluid reservoir, the compressor, the control device, one end of the indoor heat exchanger and the outside
One end of device is connected,
The control device is additionally operable to after the 3rd solenoid valve opens the 3rd preset time, if the coil temperature is still
Less than second preset temperature, then first solenoid valve and the 3rd solenoid valve is controlled to close, and controls the four-way
Reversal valve commutates, to defrost to the outdoor heat exchanger.
5. the air-conditioning system as described in claim 3 or 4, which is characterized in that the control device is additionally operable to：
When receiving shutdown command, first solenoid valve and the second solenoid valve is controlled to close, and controls the described 3rd
Solenoid valve is opened and the 3rd solenoid valve is being controlled to close after the 4th preset time, then controls the compressor
It closes, so that the air-conditioning system is out of service.
6. air-conditioning system as described in claim 1, which is characterized in that the control device is additionally operable to：
When the air-conditioning system is heating operation for the first time, after the compressor start runs the 5th preset time, institute is controlled
Second solenoid valve is stated to open and the second solenoid valve is being controlled to close again after the 6th preset time.
7. a kind of control method of air-conditioning system, which is characterized in that the air-conditioning system includes：Fluid reservoir, compressor, indoor
Heat exchanger, outdoor heat exchanger, throttling set, detection device, auxiliary refrigerant tank and the first solenoid valve, wherein, the auxiliary is cold
It is stored with high-temperature high-pressure refrigerant in matchmaker's tank, compressor one end with the fluid reservoir, the indoor heat exchanger respectively
Be connected with one end of the outdoor heat exchanger, the throttling set respectively with the other end of the indoor heat exchanger and described
The other end of outdoor heat exchanger is connected, and the detection device is connected with the outdoor heat exchanger, the auxiliary refrigerant tank
Outlet is connected by first solenoid valve with the outdoor heat exchanger, and the air-conditioning system further includes second solenoid valve, institute
The entrance that one end of second solenoid valve is stated with the auxiliary refrigerant tank is connected, the other end of the second solenoid valve respectively with it is described
Throttling set is connected with the other end of the indoor heat exchanger, the described method comprises the following steps：
The coil temperature of the outdoor heat exchanger is detected by the detection device；
When the air-conditioning system is in heating operation state and when the coil temperature is less than the first preset temperature, described in control
First solenoid valve is opened, so that the high-temperature high-pressure refrigerant flows into the outdoor heat exchanger to defrost；
After first solenoid valve opens the first preset time, it is default to judge whether the coil temperature is greater than or equal to second
Temperature；
If it is, control first solenoid valve is closed, wherein, it is pre- that second preset temperature is greater than or equal to described first
If temperature；
After first solenoid valve opens first preset time, if the coil temperature is less than the described second default temperature
Degree then controls the second solenoid valve to open.
8. the control method of air-conditioning system as claimed in claim 7, which is characterized in that further include：
After the second solenoid valve opens the second preset time, preset if the coil temperature is greater than or equal to described second
Temperature then controls first solenoid valve and the second solenoid valve to be turned off.
9. the control method of air-conditioning system as claimed in claim 8, which is characterized in that wherein, the air-conditioning system further includes
3rd solenoid valve, one end of the 3rd solenoid valve with it is described auxiliary refrigerant tank entrance be connected, the 3rd solenoid valve it is another
One end is connected with one end of the indoor heat exchanger, and the method further includes：
After the second solenoid valve opens second preset time, if the coil temperature is less than the described second default temperature
Degree then controls the 3rd solenoid valve to open, and the second solenoid valve is controlled to close.
10. the control method of air-conditioning system as claimed in claim 9, which is characterized in that wherein, the air-conditioning system further includes
Four-way reversing valve, the four-way reversing valve respectively with the fluid reservoir, the compressor, the indoor heat exchanger one end and
One end of the outdoor heat exchanger is connected, and the method further includes：
After the 3rd solenoid valve opens the 3rd preset time, if the coil temperature is still less than the described second default temperature
Degree then controls first solenoid valve and the 3rd solenoid valve to close, and the four-way reversing valve is controlled to commutate, with to described
Outdoor heat exchanger defrosts.
11. the control method of the air-conditioning system as described in claim 9 or 10, which is characterized in that further include：
When receiving shutdown command, according to the shutdown command first solenoid valve and the second solenoid valve is controlled to close
It closes, and the 3rd solenoid valve is controlled to open；And
The 3rd solenoid valve is being controlled to close after the 4th preset time, the compressor is then being controlled to close, so that institute
It is out of service to state air-conditioning system.
12. the control method of air-conditioning system as claimed in claim 7, which is characterized in that further include：
When the air-conditioning system is heating operation for the first time, after the compressor start runs the 5th preset time, institute is controlled
State second solenoid valve opening；And
It is closed after the 6th preset time, controlling the second solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390151.2A CN105333497B (en) | 2014-08-08 | 2014-08-08 | The control method of air-conditioning system and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390151.2A CN105333497B (en) | 2014-08-08 | 2014-08-08 | The control method of air-conditioning system and air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333497A CN105333497A (en) | 2016-02-17 |
| CN105333497B true CN105333497B (en) | 2018-05-22 |
Family
ID=55284177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410390151.2A Active CN105333497B (en) | 2014-08-08 | 2014-08-08 | The control method of air-conditioning system and air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333497B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801977B (en) * | 2017-01-09 | 2019-03-15 | 美的集团股份有限公司 | A kind of adjusting method of conditioners running conditions, system and air conditioner |
| CN107264222B (en) * | 2017-06-08 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system, device and air-conditioning system |
| CN110762755B (en) * | 2019-10-30 | 2021-09-28 | Tcl空调器(中山)有限公司 | Defrosting control device and control method of air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174389A (en) * | 1993-12-16 | 1995-07-14 | Mitsubishi Heavy Ind Ltd | Defrosting controller for air-conditioning machine |
| CN1324443A (en) * | 1998-10-26 | 2001-11-28 | 东芝开利株式会社 | Drive control unit for outdoor unit of air conditioner |
| CN1508499A (en) * | 2002-12-16 | 2004-06-30 | 珠海格力电器股份有限公司 | Defrosting control method for heat pump type air conditioner |
| CN200972293Y (en) * | 2006-11-15 | 2007-11-07 | 上海金城制冷设备有限公司 | Refrigeration system |
| CN101749905A (en) * | 2008-12-05 | 2010-06-23 | 乐金电子(天津)电器有限公司 | Air-conditioner continuous heat-supply and defrost control method |
-
2014
- 2014-08-08 CN CN201410390151.2A patent/CN105333497B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174389A (en) * | 1993-12-16 | 1995-07-14 | Mitsubishi Heavy Ind Ltd | Defrosting controller for air-conditioning machine |
| CN1324443A (en) * | 1998-10-26 | 2001-11-28 | 东芝开利株式会社 | Drive control unit for outdoor unit of air conditioner |
| CN1508499A (en) * | 2002-12-16 | 2004-06-30 | 珠海格力电器股份有限公司 | Defrosting control method for heat pump type air conditioner |
| CN200972293Y (en) * | 2006-11-15 | 2007-11-07 | 上海金城制冷设备有限公司 | Refrigeration system |
| CN101749905A (en) * | 2008-12-05 | 2010-06-23 | 乐金电子(天津)电器有限公司 | Air-conditioner continuous heat-supply and defrost control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105333497A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101329509B1 (en) | Hot water circulation system associated with heat pump and method for controlling the same | |
| US8657207B2 (en) | Hot water circulation system associated with heat pump and method for controlling the same | |
| CN105004114B (en) | Air conditioner and its Defrost method | |
| KR101264471B1 (en) | Water circulation system associated with refrigerant system | |
| CN105318618B (en) | Air-cooled heat pump cold-hot water machine and its defrosting control method | |
| CN103411340B (en) | Outdoor heat exchange device and Defrost method thereof | |
| KR20110079051A (en) | Water circulation system associated with refrigerant cycle | |
| CN106839286A (en) | Defrosting control method, defrosting control system and air-conditioner | |
| WO2012032681A1 (en) | Air conditioner | |
| CN105333497B (en) | The control method of air-conditioning system and air-conditioning system | |
| JP2012078015A (en) | Refrigeration cycle device | |
| CN101603701B (en) | Auxiliary heating method of air conditioner with auxiliary heating device | |
| CN105823269B (en) | Heat pump system | |
| CN107289579A (en) | Air conditioner and its defrosting control method | |
| KR101298323B1 (en) | Method for controlling hot water circulation system associated with heat pump | |
| JP2007255866A (en) | Air conditioner | |
| KR101254367B1 (en) | Hot water circulation system associated with heat pump and method for controlling the same | |
| CN208254012U (en) | A kind of heat pump system | |
| JP5747160B2 (en) | Air conditioner | |
| CN106871276A (en) | The small-power refrigerated medium pump of leak fluid molecule does not replace the super-high-rise building air conditioning system of high powered water pump low effective circulation delivery of energy | |
| KR101517234B1 (en) | Hot water circulation system associated with heat pump and method for controlling the same | |
| KR101514458B1 (en) | Hot water circulation system associated with heat pump and method for controlling the same | |
| KR101264472B1 (en) | Water circulation system associated with refrigerant system | |
| JP2014013121A (en) | Air conditioner | |
| CN214841531U (en) | Air conditioner defrosting device and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |