CN106091457B - Refrigeration system and its control method and control device, refrigerator - Google Patents
Refrigeration system and its control method and control device, refrigerator Download PDFInfo
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- CN106091457B CN106091457B CN201610373096.5A CN201610373096A CN106091457B CN 106091457 B CN106091457 B CN 106091457B CN 201610373096 A CN201610373096 A CN 201610373096A CN 106091457 B CN106091457 B CN 106091457B
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- refrigeration
- valve
- outlet
- shut
- evaporator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention provides a kind of refrigeration systems for refrigerator, comprising: compressor；Triple valve, the entrance of the triple valve are connected to the outlet of the compressor；Shut-off valve and the refrigerating evaporator and refrigeration evaporator being connected in parallel, the entrance of the refrigerating evaporator is connected to the first outlet of the triple valve, the entrance of the refrigeration evaporator is connected to the second outlet of the triple valve, the outlet of the refrigeration evaporator is connected to one end of the shut-off valve, and the outlet of the other end of the shut-off valve and the refrigerating evaporator is connected to the entrance of the compressor.According to the technical solution of the present invention, it can be avoided in refrigeration evaporator and reached for a long time without refrigerant, so as to shorten refrigeration runing time, thereby reduce the power consumption of refrigerator.
Description
Technical field
The present invention relates to fields of home appliance technology, in particular to a kind of refrigeration system for refrigerator, a kind of system
The control device and a kind of refrigerator of the control method of cooling system, a kind of refrigeration system.
Background technique
Refrigeration system 100 in the related technology, the refrigeration system 100 shown in Fig. 1 include: compressor 102, triple valve
104, refrigerating evaporator 106, refrigeration evaporator 108, condenser 112, freezing capillary 114, refrigeration capillary 116, freezing wind
Machine 118 and refrigeration blower 120.When freezing to freezing chamber, triple valve 104 is connected with the entrance of refrigerating evaporator 106
Outlet open, the outlet closing of triple valve 104 being connected with the entrance of refrigeration evaporator 108, refrigerant passed through by the outlet
It crosses freezing capillary 114 to flow into refrigerating evaporator 106, while freezing the operation of blower 118, to realize to freezing chamber system
It is cold；When freezing to refrigerating chamber, the outlet of triple valve 104 being connected with the entrance of refrigeration evaporator 108 is opened, triple valve
104 outlet being connected with the entrance of refrigerating evaporator 106 is closed, and refrigerant is flowed by the outlet by refrigeration capillary 116
Enter in refrigeration evaporator 108, while refrigerating the operation of blower 120, is freezed with realizing to refrigerating chamber.
When being switched to refrigeration operation by freezing refrigeration, or when shutdown refrigeration request refrigeration, since refrigerant is a large amount of
It accumulates in refrigerating evaporator 106, so that refrigerant has to flow through condenser after being first extracted from refrigerating evaporator 106
112, finally by triple valve 104 lead to refrigeration capillary 116 throttle after enter refrigeration evaporator 108, the transition process time-consuming compared with
It is long, lead to refrigerate the outlet of refrigeration evaporator 108 in operational process and reached for a long time without liquid refrigerant, refrigeration runing time compared with
Long, energy consumption of refrigerator increases.
Therefore, how to reach refrigerant rapidly in refrigeration evaporator, so as to shorten refrigeration runing time, reduce refrigerator
Power consumption becomes technical problem urgently to be resolved.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of refrigeration systems for refrigerator.
It is another object of the present invention to propose a kind of control method of refrigeration system.
Yet another object of the invention is that proposing a kind of control device of refrigeration system.
Another object of the present invention is to propose a kind of refrigerator.
To realize at least one above-mentioned purpose, according to the embodiment of the first aspect of the invention, propose a kind of for ice
The refrigeration system of case, comprising: compressor；Triple valve, the entrance of the triple valve are connected to the outlet of the compressor；Cut-off
Valve and the refrigerating evaporator and refrigeration evaporator being connected in parallel, the entrance of the refrigerating evaporator are connected to the triple valve
First outlet, the entrance of the refrigeration evaporator is connected to the second outlet of the triple valve, and the refrigeration evaporator goes out
Mouth is connected to one end of the shut-off valve, and the outlet of the other end of the shut-off valve and the refrigerating evaporator is connected to described
The entrance of compressor.
The refrigeration system for refrigerator of embodiment according to the present invention, in the outlet of refrigeration evaporator and refrigerating evaporator
Between be provided with shut-off valve, when starting to freeze to refrigerating chamber, since refrigerant accumulates in refrigerating evaporator, refrigerating
Refrigerant in evaporator is less, by closing shut-off valve, extracts refrigerant from refrigerating evaporator in compressor
In the process, the refrigerant in refrigeration evaporator can be extracted out to avoid compressor, so as to accelerate the speed of refrigeration.
The refrigeration system for refrigerator according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, the shut-off valve is unidirectional stop valve, and the entrance of the shut-off valve connects
To the outlet of the refrigeration evaporator, the outlet of the shut-off valve is connected to the entrance of the compressor.
The refrigeration system for refrigerator of embodiment according to the present invention, by refrigeration evaporator and refrigerating evaporator
It is provided with unidirectional stop valve between outlet, avoids unidirectional stop valve refrigerant when opening and is back to refrigeration evaporator, thus
It ensure that reliability of the refrigeration system when being freezed.
According to one embodiment of present invention, further includes: condenser, the entrance of the condenser are connected to the compressor
Outlet, the outlet of the condenser is connected to the entrance of the triple valve.
The refrigeration system for refrigerator of embodiment according to the present invention is discharged compressor by condenser gaseous
High-pressure refrigerant radiates to be converted into liquid, to ensure that refrigeration system can normally carry out refrigeration cycle.
According to one embodiment of present invention, further includes: the both ends of freezing capillary, the freezing capillary are separately connected
To the entrance of the first outlet and the refrigerating evaporator；Capillary is refrigerated, the both ends of the refrigeration capillary are separately connected
To the entrance of the second outlet and the refrigeration evaporator.
The refrigeration system for refrigerator of embodiment according to the present invention passes through freezing capillary and refrigeration capillary convection
The refrigerant for entering refrigerating evaporator and refrigeration evaporator carries out throttling control, to guarantee that refrigeration system is uniformly reliably made
It is cold.
Embodiment according to the second aspect of the invention proposes a kind of control method of refrigeration system, for above-mentioned
Described in any item refrigeration systems are controlled, the control method include: when the refrigerating chamber for determining refrigerator has refrigeration demand,
It controls the shut-off valve and the first outlet is turned off, and the control compressor operation；Detect the shut-off valve and institute
Whether the continuously off time for stating first outlet is greater than the first preset time；If it is pre- that the continuously off time is greater than described first
If the time, then controls the shut-off valve and open.
The control method of the refrigeration system of embodiment according to the present invention, when starting to freeze to refrigerating chamber, due to
Refrigerant accumulates in refrigerating evaporator, and the refrigerant in refrigeration evaporator is less, therefore, by control compressor operation come
By the refrigerant extraction in refrigerating evaporator, so that the refrigerant in refrigerating evaporator can flow rapidly into condenser, together
When shut-off valve close, the refrigerant avoided in refrigeration evaporator extracted out by compressor.It therefore, through the above technical solutions, can
To avoid reaching for a long time without refrigerant in refrigeration evaporator, so as to shorten refrigeration runing time, ice is thereby reduced
The power consumption of case.In addition, illustrating cold when the continuously off time of shut-off valve being greater than the first preset time (for example, 0-10 minutes)
The refrigerant frozen in evaporator has largely been extracted, then opens shut-off valve, so that refrigeration system enters normal refrigeration
Circulation.
According to one embodiment of present invention, further includes: when determining that the refrigerating chamber has refrigeration demand, control described the
It opens two outlets；Or when the continuously off time being greater than first preset time, controls the second outlet and open.
The control method of the refrigeration system of embodiment according to the present invention can open when refrigerating chamber has refrigeration demand
Two outlets, i.e., when refrigerating chamber has refrigeration demand, refrigerant is flowed into refrigeration evaporator；It can also be in the lasting pass of shut-off valve
Second outlet is opened when closing the time greater than the first preset time, i.e., will make to make again after the completion of the refrigerant extraction in refrigerating evaporator
Cryogen is flowed into refrigeration evaporator, to realize the normal refrigeration to refrigerating chamber.
According to one embodiment of present invention, further includes: when determining that the refrigerating chamber has refrigeration demand, control the system
The freezing blower of cooling system is in operating status, and detects fortune of the freezing blower after the refrigerating chamber has refrigeration demand
Whether the row time is greater than the second preset time；If runing time of the freezing blower after the refrigerating chamber has refrigeration demand
Greater than second preset time, then the freezing blower is closed, wherein it is default that first preset time is greater than described second
Time.
The control method of the refrigeration system of embodiment according to the present invention, compressor take out refrigerant from refrigerating evaporator
When out, blower is freezed by starting, to accelerate the heat exchange of refrigerating evaporator, and then accelerates to extract system from refrigerating evaporator
The speed of cryogen further accelerates the speed of refrigeration so that refrigerant is rapidly flowed into refrigeration evaporator.
According to one embodiment of present invention, further includes: after controlling the shut-off valve and opening, detect the shut-off valve
Continue whether opening time is greater than third preset time；If the opening time that continues is greater than the third preset time, open
Move the refrigeration blower of the refrigeration system, wherein first preset time is greater than the third preset time.
The control method of the refrigeration system of embodiment according to the present invention, when just starting to be opened due to shut-off valve, refrigeration
The temperature of evaporator surface is not lower, then when the temperature on refrigeration evaporator surface is lower (when the lasting opening of shut-off valve
Between be greater than third preset time when) restart refrigeration blower, the power consumption of refrigeration system can be reduced.
Embodiment according to the third aspect of the invention we proposes a kind of control device of refrigeration system, for above-mentioned
Refrigeration system described in any one of technical solution is controlled, and the control device includes: first control unit, for true
It when determining the refrigerating chamber of refrigerator has refrigeration demand, controls the shut-off valve and the first outlet is turned off, and the control pressure
The operation of contracting machine；Whether first detection unit, the continuously off time for detecting the shut-off valve and the first outlet are greater than
First preset time；Second control unit controls institute if being greater than first preset time for the continuously off time
State shut-off valve opening.
The control device of the refrigeration system of embodiment according to the present invention, when starting to freeze to refrigerating chamber, due to
Refrigerant accumulates in refrigerating evaporator, and the refrigerant in refrigeration evaporator is less, therefore, by control compressor operation come
By the refrigerant extraction in refrigerating evaporator, so that the refrigerant in refrigerating evaporator can flow rapidly into condenser, together
When shut-off valve close, the refrigerant avoided in refrigeration evaporator extracted out by compressor.It therefore, through the above technical solutions, can
To avoid reaching for a long time without refrigerant in refrigeration evaporator, so as to shorten refrigeration runing time, ice is thereby reduced
The power consumption of case.In addition, illustrating the refrigeration in refrigerating evaporator when the continuously off time of shut-off valve being greater than the first preset time
Agent has largely been extracted, then opens shut-off valve, so that refrigeration system enters normal refrigeration cycle.
According to one embodiment of present invention, the first control unit is also used to, and is determining that the refrigerating chamber has refrigeration
When demand, controls the second outlet and open；Or second control unit is also used to, and is greater than in the continuously off time
When first preset time, controls the second outlet and open.
The control device of the refrigeration system of embodiment according to the present invention can open when refrigerating chamber has refrigeration demand
Two outlets, i.e., when refrigerating chamber has refrigeration demand, refrigerant is flowed into refrigeration evaporator；It can also be in the lasting pass of shut-off valve
Second outlet is opened when closing the time greater than the first preset time, i.e., will make to make again after the completion of the refrigerant extraction in refrigerating evaporator
Cryogen is flowed into refrigeration evaporator, to realize the normal refrigeration to refrigerating chamber.
According to one embodiment of present invention, further includes: the first control unit is also used to, and is determining the refrigerating chamber
When having refrigeration demand, the freezing blower for controlling the refrigeration system is in operating status；And second detection unit, for detecting
Whether runing time of the freezing blower after the refrigerating chamber has refrigeration demand is greater than the second preset time；Third control
Unit, if for the freezing blower when the runing time after the refrigerating chamber has refrigeration demand is default greater than described second
Between, then close the freezing blower, wherein first preset time is greater than second preset time.
The control device of the refrigeration system of embodiment according to the present invention, compressor take out refrigerant from refrigerating evaporator
When out, blower is freezed by starting, to accelerate the heat exchange of refrigerating evaporator, and then accelerates to extract system from refrigerating evaporator
The speed of cryogen further accelerates the speed of refrigeration so that refrigerant is rapidly flowed into refrigeration evaporator.
According to one embodiment of present invention, further includes: third detection unit, for controlling the shut-off valve opening
Afterwards, whether the lasting opening time for detecting the shut-off valve is greater than third preset time；4th control unit, if being held for described
Continuous opening time is greater than the third preset time, then starts the refrigeration blower of the refrigeration system, wherein described first is default
Time is greater than the third preset time.
The control device of the refrigeration system of embodiment according to the present invention, when just starting to be opened due to shut-off valve, refrigeration
The temperature of evaporator surface is not lower, then when the temperature on refrigeration evaporator surface is lower (when the lasting opening of shut-off valve
Between be greater than third preset time when) restart refrigeration blower, the power consumption of refrigeration system can be reduced.
Embodiment according to the fourth aspect of the invention proposes a kind of refrigerator, comprising: any one of above-mentioned technical proposal
The refrigeration system for refrigerator；The control device of refrigeration system described in any one of above-mentioned technical proposal therefore should
Refrigerator have and any one of above-mentioned technical proposal described in for any one of the refrigeration system of refrigerator, above-mentioned technical proposal institute
The identical technical effect of the control device for the refrigeration system stated, details are not described herein.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of refrigeration system in the related technology；
Fig. 2 shows the structural schematic diagrams of the refrigeration system of embodiment according to the present invention；
Fig. 3 shows the schematic flow diagram of the control method of refrigeration system according to an embodiment of the invention；
Fig. 4 shows the schematic flow diagram of the control method of refrigeration system according to another embodiment of the invention；
Fig. 5 shows the schematic flow diagram of the control method of refrigeration system according to still another embodiment of the invention；
Fig. 6 shows the schematic block diagram of the control device of the refrigeration system of embodiment according to the present invention；
Fig. 7 shows the schematic block diagram of the refrigerator of embodiment according to the present invention.
Wherein, the corresponding relationship in Fig. 1 and Fig. 2 between the label and component names of attached drawing are as follows:
100 refrigeration systems, 102 compressors, 104 triple valves, 106 refrigerating evaporators, 108 refrigeration evaporators, 110 cut-offs
Valve, 112 condensers, 114 freezing capillaries, 116 refrigeration capillaries, 118 freezing blowers, 120 refrigeration blowers.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 2 shows the structural schematic diagrams of the refrigeration system 100 of embodiment according to the present invention.
As shown in Fig. 2, the refrigeration system 100 of embodiment according to the present invention, comprising: compressor 102；Triple valve 104, three
The entrance of port valve 104 is connected to the outlet of compressor 102；Shut-off valve 110 and the refrigerating evaporator 106 being connected in parallel and cold
Evaporator 108 is hidden, the entrance of refrigerating evaporator 106 is connected to the first outlet of triple valve 104, the entrance of refrigeration evaporator 108
It is connected to the second outlet of triple valve 104, the outlet of refrigeration evaporator 108 is connected to one end of shut-off valve 110, shut-off valve 110
The outlet of the other end and refrigerating evaporator 106 be connected to the entrance of compressor 102.
The refrigeration system 100 for refrigerator of embodiment according to the present invention, in refrigeration evaporator 108 and refrigerating evaporator
Shut-off valve 110 is provided between 106 outlet, when starting to freeze to refrigerating chamber, since refrigerant accumulates in frozen steamed
It sends out in device 106, the refrigerant in refrigeration evaporator 108 is less, by closing shut-off valve 110, in compressor 102 by refrigerant
It, can be to avoid compressor 102 by the refrigerant in refrigeration evaporator 108 during being extracted from refrigerating evaporator 106
Extraction, so as to accelerate the speed of refrigeration.
According to one embodiment of present invention, shut-off valve 110 is unidirectional stop valve, and the entrance of shut-off valve 110 is connected to
The outlet of refrigeration evaporator 108, the outlet of shut-off valve 110 are connected to the entrance of compressor 102.
The refrigeration system 100 for refrigerator of embodiment according to the present invention, by refrigeration evaporator 108 and frozen steamed
It sends out and is provided with unidirectional stop valve 110 between the outlet of device 106, avoid the refrigerant when opening of unidirectional stop valve 110 and be back to
Refrigeration evaporator 108, to ensure that reliability of the refrigeration system 100 when being freezed.
According to one embodiment of present invention, further includes: the entrance of condenser 112, condenser 112 is connected to compressor
102 outlet, the outlet of condenser 112 are connected to the entrance of triple valve 104.
The refrigeration system 100 for refrigerator of embodiment according to the present invention, by condenser 112 to 102 row of compressor
Gaseous high-pressure refrigerant out radiates to be converted into liquid, to ensure that refrigeration system 100 can be carried out normally
Refrigeration cycle.
According to one embodiment of present invention, further includes: the both ends of freezing capillary 114, freezing capillary 114 connect respectively
It is connected to the entrance of first outlet and refrigerating evaporator 106；Capillary 116 is refrigerated, the both ends of refrigeration capillary 116 are respectively connected to
The entrance of second outlet and refrigeration evaporator 108.
The refrigeration system 100 for refrigerator of embodiment according to the present invention passes through freezing capillary 114 and refrigeration capillary
The refrigerant of 116 pairs of pipe inflow refrigerating evaporators 106 and refrigeration evaporator 108 carries out throttling control, to guarantee refrigeration system 100
Uniformly reliably freeze.
According to one embodiment of present invention, further includes: freezing blower 118 and refrigeration blower 120 are carried out to freezing chamber
Starting freezing blower 118 when refrigeration, the starting refrigeration blower 120 when freezing to refrigerating chamber.
Fig. 3 shows the schematic flow diagram of the control method of refrigeration system according to an embodiment of the invention.
As shown in figure 3, the control method of refrigeration system according to an embodiment of the invention, for any of the above-described
Refrigeration system controlled, control method includes:
Step 302, it when the refrigerating chamber for determining refrigerator has refrigeration demand, controls shut-off valve and first outlet is turned off, with
And control compressor operation.
Preferably, further includes: when determining that refrigerating chamber has refrigeration demand, the freezing blower for controlling refrigeration system is in operation
State.When compressor extracts refrigerant out from refrigerating evaporator, blower is freezed by starting, to accelerate refrigerating evaporator
Heat exchange, and then accelerate the speed that refrigerant is extracted from refrigerating evaporator, so that refrigerant is rapidly flowed into refrigeration evaporation
Device further accelerates the speed of refrigeration.
Step 304, it detects shut-off valve and whether the continuously off time of first outlet is greater than the first preset time.
Preferably, further includes: whether runing time of the detection freezing blower after refrigerating chamber has refrigeration demand is greater than the
Two preset times；If freezing runing time of the blower after refrigerating chamber has refrigeration demand is greater than the second preset time, close
Freeze blower, wherein the first preset time is greater than the second preset time.
Step 306, if the continuously off time is greater than the first preset time, shut-off valve opening is controlled.
Preferably, in step 302, further includes: when determining that refrigerating chamber has refrigeration demand, control second outlet is opened.
Or within step 306, further includes: when the continuously off time being greater than the first preset time, control second outlet is opened.It can be with
Second outlet is opened when refrigerating chamber has refrigeration demand, i.e., refrigerant is flowed into refrigeration evaporator when refrigerating chamber has refrigeration demand
In；Second outlet can also be opened when the continuously off time of shut-off valve being greater than the first preset time, i.e., by refrigerating evaporator
In refrigerant extraction after the completion of be flowed into refrigerant in refrigeration evaporator again, to realize to the normal refrigeration of refrigerating chamber.
Preferably, after step 306, whether the lasting opening time for detecting shut-off valve is greater than third preset time；If holding
Continuous opening time is greater than third preset time, then starts the refrigeration blower of refrigeration system, wherein the first preset time is greater than third
Preset time.When just starting to be opened due to shut-off valve, the temperature on refrigeration evaporator surface is not lower, then in refrigeration evaporator
When third preset time (the lasting opening time of shut-off valve be greater than) restarts refrigeration blower when the temperature on surface is lower, can be with
Reduce the power consumption of refrigeration system.
In the above-mentioned technical solutions, when starting to freeze to refrigerating chamber, since refrigerant accumulates in refrigerating evaporator
In, the refrigerant in refrigeration evaporator is less, therefore, is run by control compressor by the refrigerant in refrigerating evaporator
Extraction, so that the refrigerant in refrigerating evaporator can flow rapidly into condenser, while shut-off valve is closed, and refrigeration is avoided
Refrigerant in evaporator is extracted out by compressor.Therefore, through the above technical solutions, when can be avoided long in refrigeration evaporator
Between without refrigerant reach, so as to shorten refrigeration runing time, thereby reduce the power consumption of refrigerator.In addition, in shut-off valve
When the continuously off time is greater than the first preset time (for example, 0-10 minutes), illustrate that the refrigerant in refrigerating evaporator is most of
It has been be extracted that, then open shut-off valve, so that refrigeration system enters normal refrigeration cycle.
Fig. 4 shows the schematic flow diagram of the control method of refrigeration system according to another embodiment of the invention.
As shown in figure 4, the control method of refrigeration system according to another embodiment of the invention, comprising:
Step 402, freezing switching refrigeration operation carries out freezing to be switched to freezing to refrigerating chamber to freezing chamber,
Determine that refrigerating chamber has refrigeration demand in this case.
Step 404, refrigeration request refrigeration is shut down, i.e., when freezing chamber and refrigerating chamber do not freeze, is received to refrigerating chamber
The signal to freeze determines that refrigerating chamber has refrigeration demand in this case.
Step 406, unidirectional stop valve is closed, triple valve both disconnects refrigeration or disconnects freezing (i.e. two of triple valve
Outlet is turned off), compressor is in operating status, freezes blower late release.Wherein, when freezing switches refrigeration operation, pressure
Contracting machine and freezing blower are at operating status at this time, do not need to control compressor and freezing blower at this time；Work as shutdown
When refrigeration request refrigeration, compressor and freezing blower are now in inactive state, then start compressor and freezing blower.And
Freezing blower is closed after starting freezes blower 0-3 minutes (not including 0 minute).
Step 408, after 0-10 minutes lasting (not including 0 minute), unidirectional stop valve is opened, triple valve leads to cold
Hiding refrigerates blower delay start, for example, refrigeration blower starts after postponing 0-3 minutes (not including 0 minute).
Fig. 5 shows the schematic flow diagram of the control method of refrigeration system according to still another embodiment of the invention.
As shown in figure 5, the control method of refrigeration system according to still another embodiment of the invention, comprising:
Step 502, freezing switching refrigeration operation carries out freezing to be switched to freezing to refrigerating chamber to freezing chamber,
Determine that refrigerating chamber has refrigeration demand in this case.
Step 504, refrigeration request refrigeration is shut down, i.e., when freezing chamber and refrigerating chamber do not freeze, is received to refrigerating chamber
The signal to freeze determines that refrigerating chamber has refrigeration demand in this case.
Step 506, unidirectional stop valve is closed, triple valve connects refrigeration, but disconnects freezing (the i.e. first outlet of triple valve
Close, second outlet is opened), compressor is in operating status, freezes blower late release.Wherein, when freezing switches refrigeration fortune
When row, compressor and freezing blower are at operating status at this time, do not need to control compressor and freezing blower at this time；
When shutting down refrigeration request refrigeration, compressor and freezing blower are now in inactive state, then start compressor and freezing wind
Machine.And freezing blower is closed after starting freezes blower 0-3 minutes (not including 0 minute).
Step 508, after 0-10 minutes lasting, unidirectional stop valve is opened, triple valve still leads to refrigeration, refrigerates blower
Delay start, for example, refrigeration blower starts after postponing 0-3 minutes (not including 0 minute).
Fig. 6 shows the schematic block diagram of the control device of the refrigeration system of embodiment according to the present invention.
As shown in fig. 6, the control device 600 of the refrigeration system of embodiment according to the present invention, for above-mentioned technical side
The refrigeration system of any one of case is controlled, and the control device 600 of refrigeration system includes: that first control unit 602, first is examined
Survey unit 604 and the second control unit 606.
First control unit 602, when for having refrigeration demand in the refrigerating chamber for determining refrigerator, control shut-off valve and first goes out
Mouth is turned off, and control compressor operation.
Preferably, first control unit 602 is also used to, and when determining that refrigerating chamber has refrigeration demand, control second outlet is beaten
It opens, i.e., when refrigerating chamber has refrigeration demand, refrigerant is flowed into refrigeration evaporator.
Preferably, first control unit 602 is also used to, and when determining that refrigerating chamber has refrigeration demand, controls refrigeration system
It is in operating status to freeze blower.
First detection unit 604, it is pre- whether the continuously off time for detecting shut-off valve and first outlet is greater than first
If the time.
Preferably, the control device 600 of refrigeration system further include: second detection unit 608 and third control unit 610.
Wherein, second detection unit 608 is used to detect whether runing time of the freezing blower after refrigerating chamber has refrigeration demand to be greater than
Second preset time；Third control unit 610, if big for freezing runing time of the blower after refrigerating chamber has refrigeration demand
In the second preset time, then freezing blower is closed, wherein the first preset time is greater than the second preset time.Compressor will freeze
When agent is extracted out from refrigerating evaporator, blower is freezed by starting, to accelerate the heat exchange of refrigerating evaporator, and then accelerate from
The speed that refrigerant is extracted in refrigerating evaporator further accelerates so that refrigerant is rapidly flowed into refrigeration evaporator
The speed of refrigeration.
Second control unit 606 controls shut-off valve opening if being greater than the first preset time for the continuously off time.
Preferably, in the case where first control unit 602 does not control second outlet and opens, the second control unit 606 is also
For when the continuously off time being greater than the first preset time, control second outlet to be opened.I.e. by the refrigeration in refrigerating evaporator
It is flowed into refrigerant in refrigeration evaporator again after the completion of agent extraction, to realize the normal refrigeration to refrigerating chamber.
Preferably, the control device 600 of refrigeration system further include: third detection unit 612 and the 4th control unit 614.
Wherein, third detection unit 612 is used for after control shut-off valve is opened, and whether the lasting opening time for detecting shut-off valve is greater than the
Three preset times；4th control unit 614 starts refrigeration system if being greater than third preset time for continuing opening time
Refrigeration blower, wherein the first preset time be greater than third preset time.When just starting to be opened due to shut-off valve, refrigeration is steamed
The temperature for sending out device surface is not lower, then (the lasting opening time of shut-off valve when the temperature on refrigeration evaporator surface is lower
When greater than third preset time) restart refrigeration blower, the power consumption of refrigeration system can be reduced.
In the above-mentioned technical solutions, when starting to freeze to refrigerating chamber, since refrigerant accumulates in refrigerating evaporator
In, the refrigerant in refrigeration evaporator is less, therefore, is run by control compressor by the refrigerant in refrigerating evaporator
Extraction, so that the refrigerant in refrigerating evaporator can flow rapidly into condenser, while shut-off valve is closed, and refrigeration is avoided
Refrigerant in evaporator is extracted out by compressor.Therefore, through the above technical solutions, when can be avoided long in refrigeration evaporator
Between without refrigerant reach, so as to shorten refrigeration runing time, thereby reduce the power consumption of refrigerator.In addition, in shut-off valve
When the continuously off time is greater than the first preset time (for example, 0-10 minutes), illustrate that the refrigerant in refrigerating evaporator is most of
It has been be extracted that, then open shut-off valve, so that refrigeration system enters normal refrigeration cycle.
Fig. 7 shows the schematic block diagram of the refrigerator of embodiment according to the present invention.
As shown in fig. 7, the refrigerator 700 of embodiment according to the present invention, comprising: any one of above-mentioned technical proposal is used for
The refrigeration system 100 of refrigerator；The control device 600 of the refrigeration system of any one of above-mentioned technical proposal, therefore, the refrigerator 700
With the refrigeration with any one of above-mentioned technical proposal for any one of the refrigeration system 100 of refrigerator, above-mentioned technical proposal
The identical technical effect of control device 600 of system, details are not described herein.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, can be to avoid
It is reached for a long time without refrigerant in refrigeration evaporator, so as to shorten refrigeration runing time, thereby reduces the function of refrigerator
Consumption.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " indicates two or more；Term " connected ", " connection " etc. shall be understood in a broad sense, for example,
It may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, centre can also be passed through
Medium is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of control method of refrigeration system, which is characterized in that the refrigeration system includes compressor；Triple valve, described three
The entrance of port valve is connected to the outlet of the compressor；Shut-off valve and the refrigerating evaporator and refrigeration evaporator being connected in parallel,
The entrance of the refrigerating evaporator is connected to the first outlet of the triple valve, and the entrance of the refrigeration evaporator is connected to described
The second outlet of triple valve, the outlet of the refrigeration evaporator are connected to one end of the shut-off valve, the shut-off valve it is another
The outlet of end and the refrigerating evaporator is connected to the entrance of the compressor, and the control method includes:
It when the refrigerating chamber for determining refrigerator has refrigeration demand, controls the shut-off valve and the first outlet is turned off, and control
Make the compressor operation；
Whether the continuously off time for detecting the shut-off valve and the first outlet is greater than the first preset time；
If the continuously off time is greater than first preset time, controls the shut-off valve and open.
2. the control method of refrigeration system according to claim 1, which is characterized in that further include:
When determining that the refrigerating chamber has refrigeration demand, controls the second outlet and open；Or
When the continuously off time being greater than first preset time, controls the second outlet and open.
3. the control method of refrigeration system according to claim 1 or 2, which is characterized in that further include:
When determining that the refrigerating chamber has refrigeration demand, the freezing blower for controlling the refrigeration system is in operating status, and examines
Survey whether runing time of the freezing blower after the refrigerating chamber has refrigeration demand is greater than the second preset time；
If runing time of the freezing blower after the refrigerating chamber has refrigeration demand is greater than second preset time,
The freezing blower is closed,
Wherein, first preset time is greater than second preset time.
4. the control method of refrigeration system according to claim 1 or 2, which is characterized in that further include:
After controlling the shut-off valve and opening, whether the lasting opening time for detecting the shut-off valve is greater than third preset time；
If the opening time that continues is greater than the third preset time, start the refrigeration blower of the refrigeration system,
Wherein, first preset time is greater than the third preset time.
5. a kind of control device of refrigeration system, which is characterized in that the refrigeration system includes compressor；Triple valve, described three
The entrance of port valve is connected to the outlet of the compressor；Shut-off valve and the refrigerating evaporator and refrigeration evaporator being connected in parallel,
The entrance of the refrigerating evaporator is connected to the first outlet of the triple valve, and the entrance of the refrigeration evaporator is connected to described
The second outlet of triple valve, the outlet of the refrigeration evaporator are connected to one end of the shut-off valve, the shut-off valve it is another
The outlet of end and the refrigerating evaporator is connected to the entrance of the compressor, and the control device includes:
First control unit controls the shut-off valve and described first when for having refrigeration demand in the refrigerating chamber for determining refrigerator
Outlet is turned off, and the control compressor operation；
First detection unit, it is pre- whether the continuously off time for detecting the shut-off valve and the first outlet is greater than first
If the time；
Second control unit controls the shut-off valve if being greater than first preset time for the continuously off time
It opens.
6. the control device of refrigeration system according to claim 5, which is characterized in that
The first control unit is also used to, and when determining that the refrigerating chamber has refrigeration demand, is controlled the second outlet and is opened；
Or
Second control unit is also used to, when the continuously off time being greater than first preset time, described in control
Second outlet is opened.
7. the control device of refrigeration system according to claim 5 or 6, which is characterized in that
The first control unit is also used to, and when determining that the refrigerating chamber has refrigeration demand, controls the cold of the refrigeration system
It is in operating status to freeze blower；And further include:
Second detection unit, for whether detecting runing time of the freezing blower after the refrigerating chamber has refrigeration demand
Greater than the second preset time；
Third control unit, if being greater than institute for runing time of the freezing blower after the refrigerating chamber has refrigeration demand
The second preset time is stated, then closes the freezing blower,
Wherein, first preset time is greater than second preset time.
8. the control device of refrigeration system according to claim 5 or 6, which is characterized in that further include:
Third detection unit, for after controlling the shut-off valve and opening, detect the shut-off valve lasting opening time whether
Greater than third preset time；
4th control unit starts the refrigeration system if being greater than the third preset time for the opening time that continues
The refrigeration blower of system,
Wherein, first preset time is greater than the third preset time.
9. a kind of refrigerator characterized by comprising
The control device of refrigeration system as described in any one of claim 5 to 8.
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| CN201610373096.5A CN106091457B (en) | 2016-05-25 | 2016-05-25 | Refrigeration system and its control method and control device, refrigerator |
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| CN201610373096.5A CN106091457B (en) | 2016-05-25 | 2016-05-25 | Refrigeration system and its control method and control device, refrigerator |
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| CN106091457B true CN106091457B (en) | 2019-05-17 |
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| CN106871541A (en) * | 2017-02-14 | 2017-06-20 | 合肥美的电冰箱有限公司 | The control method of refrigeration plant and reduction coolant noise |
| DE102019201427B4 (en) | 2019-02-05 | 2022-01-13 | Audi Ag | Method for operating a refrigerant circuit of a refrigeration system of a vehicle |
| CN114992974B (en) * | 2022-06-28 | 2024-04-30 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and refrigerator |
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| CN106091457A (en) | 2016-11-09 |
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