CN106091457A - Refrigeration system and control method thereof and control device, refrigerator - Google Patents
Refrigeration system and control method thereof and control device, refrigerator Download PDFInfo
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- CN106091457A CN106091457A CN201610373096.5A CN201610373096A CN106091457A CN 106091457 A CN106091457 A CN 106091457A CN 201610373096 A CN201610373096 A CN 201610373096A CN 106091457 A CN106091457 A CN 106091457A
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- Prior art keywords
- refrigeration
- outlet
- stop valve
- preset time
- cold
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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 invention provides a kind of refrigeration system for refrigerator, including: compressor；Three-way valve, the entrance of described three-way valve is connected to the outlet of described compressor；Stop valve and the refrigerating evaporator being connected in parallel and refrigeration evaporator, the entrance of described refrigerating evaporator is connected to the first outlet of described three-way valve, the entrance of described refrigeration evaporator is connected to the second outlet of described three-way valve, the outlet of described refrigeration evaporator is connected to one end of described stop valve, and the other end of described stop valve and the outlet of described refrigerating evaporator are connected to the entrance of described compressor.By technical scheme, can be avoided and refrigeration evaporator does not has for a long time cold-producing medium arrive, thus shorten cold preservation and run the time, and then reduce the power consumption of refrigerator.
Description
Technical field
The present invention relates to household electrical appliance technical field, in particular to a kind of refrigeration system for refrigerator, a kind of system
The control method of cooling system, the control device of a kind of refrigeration system and a kind of refrigerator.
Background technology
Refrigeration system 100 in correlation technique that Fig. 1 is shown, this refrigeration system 100 includes: compressor 102, three-way valve
104, refrigerating evaporator 106, refrigeration evaporator 108, condenser 112, freezing capillary tube 114, cold preservation capillary tube 116, freezing wind
Machine 118 and cold preservation blower fan 120.When freezing refrigerating chamber, the entrance with refrigerating evaporator 106 of three-way valve 104 is connected
Outlet open, the port closing that the entrance with refrigeration evaporator 108 of three-way valve 104 is connected, cold-producing medium pass through this outlet warp
Crossing freezing capillary tube 114 and flow in refrigerating evaporator 106, the most freezing blower fan 118 runs, to realize refrigerating chamber system
Cold；When freezing cold room, the outlet that the entrance with refrigeration evaporator 108 of three-way valve 104 is connected is opened, three-way valve
The port closing that the entrance with refrigerating evaporator 106 of 104 is connected, cold-producing medium is flowed through cold preservation capillary tube 116 by this outlet
Entering in refrigeration evaporator 108, cold preservation blower fan 120 runs simultaneously, to realize freezing cold room.
When being switched to refrigeration operation by freezing refrigeration, or when shutting down cold preservation request refrigeration, owing to cold-producing medium is a large amount of
Accumulate in refrigerating evaporator 106 so that cold-producing medium have to first be drawn out of from refrigerating evaporator 106 and flow through condenser afterwards
112, finally led to entrance refrigeration evaporator 108 after cold preservation capillary tube 116 throttles by three-way valve 104, this transition process is time-consuming relatively
Long, causing refrigeration evaporator 108 in cold preservation running to export does not has liquid refrigerant to arrive for a long time, and cold preservation runs the time relatively
Long, energy consumption of refrigerator increases.
Therefore, how to make cold-producing medium arrive in refrigeration evaporator rapidly, thus shorten cold preservation and run the time, reduce refrigerator
Power consumption becomes technical problem urgently to be resolved hurrily.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art or correlation technique.
To this end, it is an object of the present invention to propose a kind of refrigeration system for refrigerator.
Further object is that the control method proposing a kind of refrigeration system.
A further object of the present invention is to propose the control device of a kind of refrigeration system.
Another object of the present invention is to propose a kind of refrigerator.
For realizing at least one purpose above-mentioned, embodiment according to the first aspect of the invention, it is proposed that a kind of for ice
The refrigeration system of case, including: compressor；Three-way valve, the entrance of described three-way valve is connected to the outlet of described compressor；Cut-off
Valve and the refrigerating evaporator being connected in parallel and refrigeration evaporator, the entrance of described refrigerating evaporator is connected to described three-way valve
First outlet, the entrance of described refrigeration evaporator be connected to described three-way valve second outlet, going out of described refrigeration evaporator
Mouth is connected to one end of described stop valve, and the other end of described stop valve and the outlet of described refrigerating evaporator are connected to described
The entrance of compressor.
According to an embodiment of the invention for the refrigeration system of refrigerator, in refrigeration evaporator and the outlet of refrigerating evaporator
Between be provided with stop valve, when starting cold room is freezed, owing to cold-producing medium accumulates in refrigerating evaporator, in cold preservation
Cold-producing medium in vaporizer is less, by closing stop valve, is extracted by cold-producing medium at compressor from refrigerating evaporator
During, compressor can be avoided to be extracted out by the cold-producing medium in refrigeration evaporator, such that it is able to accelerate the speed of refrigeration.
The refrigeration system for refrigerator according to the abovementioned embodiments of the present invention, it is also possible to there is techniques below feature:
According to one embodiment of present invention, described stop valve is unidirectional stop valve, and the entrance of described stop valve connects
To the outlet of described refrigeration evaporator, the outlet of described stop valve is connected to the entrance of described compressor.
According to an embodiment of the invention for the refrigeration system of refrigerator, by refrigeration evaporator and refrigerating evaporator
Unidirectional stop valve it is provided with, it is to avoid unidirectional stop valve cold-producing medium when opening is back to refrigeration evaporator between outlet, thus
Ensure that the refrigeration system reliability when freezing.
According to one embodiment of present invention, also including: condenser, the entrance of described condenser is connected to described compressor
Outlet, the outlet of described condenser is connected to the entrance of described three-way valve.
According to an embodiment of the invention for the refrigeration system of refrigerator, by condenser to the gaseous state that compressor is discharged
High-pressure refrigerant carries out dispelling the heat to be converted into liquid, thus ensure that refrigeration system can normally carry out kind of refrigeration cycle.
According to one embodiment of present invention, also including: freezing capillary tube, the two ends of described freezing capillary tube connect respectively
To described first outlet and the entrance of described refrigerating evaporator；Cold preservation capillary tube, the two ends of described cold preservation capillary tube connect respectively
To described second outlet and the entrance of described refrigeration evaporator.
According to an embodiment of the invention for the refrigeration system of refrigerator, by freezing capillary tube and cold preservation capillary convection
The cold-producing medium entering refrigerating evaporator and refrigeration evaporator carries out the control that throttles, to ensure that refrigeration system is the most reliably made
Cold.
Embodiment according to the second aspect of the invention, it is proposed that the control method of a kind of refrigeration system, for above-mentioned
Refrigeration system described in any one is controlled, and described control method includes: when the cold room determining refrigerator has refrigeration demand,
Control described stop valve and described first outlet is turned off, and control described compressor operating；Detect described stop valve and institute
Whether state the continuously off time of the first outlet more than the first Preset Time；If the described continuously off time is first pre-more than described
If the time, then control described stop valve and open.
The control method of refrigeration system according to an embodiment of the invention, when starting cold room is freezed, due to
Cold-producing medium accumulates in refrigerating evaporator, and the cold-producing medium in refrigeration evaporator is less, therefore, by controlling compressor operating
Cold-producing medium in refrigerating evaporator is extracted out, so that the cold-producing medium in refrigerating evaporator can flow rapidly in condenser, with
Time stop valve close, it is to avoid the cold-producing medium in refrigeration evaporator is extracted out by compressor.Therefore, by technique scheme, can
Refrigeration evaporator does not has for a long time cold-producing medium arrive to avoid, thus shorten cold preservation and run the time, and then reduce ice
The power consumption of case.It addition, when the continuously off time of stop valve is more than the first Preset Time (such as, 0-10 minute), illustrate cold
The cold-producing medium major part frozen in vaporizer has been extracted, then open stop valve, so that refrigeration system enters normal refrigeration
Circulation.
According to one embodiment of present invention, also include: when determining that described cold room has refrigeration demand, control described
Two outlets are opened；Or when the described continuously off time is more than described first Preset Time, controls described second outlet and open.
The control method of refrigeration system according to an embodiment of the invention, can open when cold room has refrigeration demand
Two outlets, i.e. when cold room has refrigeration demand, cold-producing medium is flowed in refrigeration evaporator；Can also be in the lasting pass of stop valve
Open the second outlet when time of closing is more than the first Preset Time, will the cold-producing medium in refrigerating evaporator extracted out after make system again
Cryogen is flowed in refrigeration evaporator, thus realizes the normal refrigeration to cold room.
According to one embodiment of present invention, also include: when determining that described cold room has refrigeration demand, control described system
The freezing blower fan of cooling system is in running status, and detects described freezing blower fan fortune after described cold room has refrigeration demand
Whether the row time is more than the second Preset Time；If the described freezing blower fan operation time after described cold room has refrigeration demand
More than described second Preset Time, then closing described freezing blower fan, wherein, described first Preset Time is preset more than described second
Time.
The control method of refrigeration system according to an embodiment of the invention, cold-producing medium is taken out from refrigerating evaporator by compressor
When going out, by starting freezing blower fan, thus accelerate the heat exchange of refrigerating evaporator, and then accelerate extraction system from refrigerating evaporator
The speed of cryogen so that cold-producing medium is flowed into refrigeration evaporator rapidly, accelerates the speed of refrigeration further.
According to one embodiment of present invention, also include: after the described stop valve of control is opened, detect described stop valve
Whether continue opening time more than the 3rd Preset Time；If the described opening time that continues is more than described 3rd Preset Time, then open
The cold preservation blower fan of dynamic described refrigeration system, wherein, described first Preset Time is more than described 3rd Preset Time.
The control method of refrigeration system according to an embodiment of the invention, when just starting due to stop valve to be opened, cold preservation
The temperature of evaporator surface is the most relatively low, then (when persistently the opening of stop valve when the temperature on refrigeration evaporator surface is relatively low
Between more than three Preset Times time) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
Embodiment according to the third aspect of the invention we, it is proposed that the control device of a kind of refrigeration system, for above-mentioned
Refrigeration system according to any one of technical scheme is controlled, and described control device includes: the first control unit, for really
Determine the cold room of refrigerator when having refrigeration demand, control described stop valve and described first outlet is turned off, and control described pressure
Contracting machine runs；First detector unit, for detecting whether the continuously off time of described stop valve and described first outlet is more than
First Preset Time；Second control unit, if for the described continuously off time more than described first Preset Time, then controlling institute
State stop valve to open.
The control device of refrigeration system according to an embodiment of the invention, when starting cold room is freezed, due to
Cold-producing medium accumulates in refrigerating evaporator, and the cold-producing medium in refrigeration evaporator is less, therefore, by controlling compressor operating
Cold-producing medium in refrigerating evaporator is extracted out, so that the cold-producing medium in refrigerating evaporator can flow rapidly in condenser, with
Time stop valve close, it is to avoid the cold-producing medium in refrigeration evaporator is extracted out by compressor.Therefore, by technique scheme, can
Refrigeration evaporator does not has for a long time cold-producing medium arrive to avoid, thus shorten cold preservation and run the time, and then reduce ice
The power consumption of case.It addition, when the continuously off time of stop valve is more than the first Preset Time, the refrigeration in refrigerating evaporator is described
Agent major part has been extracted, then open stop valve, so that refrigeration system enters normal kind of refrigeration cycle.
According to one embodiment of present invention, described first control unit is additionally operable to, and is determining that described cold room has refrigeration
During demand, control described second outlet and open；Or described second control unit is additionally operable to, it is more than in the described continuously off time
During described first Preset Time, control described second outlet and open.
The control device of refrigeration system according to an embodiment of the invention, can open when cold room has refrigeration demand
Two outlets, i.e. when cold room has refrigeration demand, cold-producing medium is flowed in refrigeration evaporator；Can also be in the lasting pass of stop valve
Open the second outlet when time of closing is more than the first Preset Time, will the cold-producing medium in refrigerating evaporator extracted out after make system again
Cryogen is flowed in refrigeration evaporator, thus realizes the normal refrigeration to cold room.
According to one embodiment of present invention, also include: described first control unit is additionally operable to, determining described cold room
When having refrigeration demand, the freezing blower fan controlling described refrigeration system is in running status；And second detector unit, it is used for detecting
Whether the described freezing blower fan operation time after described cold room has refrigeration demand is more than the second Preset Time；3rd controls
Unit, if when the described freezing blower fan operation time after described cold room has refrigeration demand presets more than described second
Between, then close described freezing blower fan, wherein, described first Preset Time is more than described second Preset Time.
The control device of refrigeration system according to an embodiment of the invention, cold-producing medium is taken out from refrigerating evaporator by compressor
When going out, by starting freezing blower fan, thus accelerate the heat exchange of refrigerating evaporator, and then accelerate extraction system from refrigerating evaporator
The speed of cryogen so that cold-producing medium is flowed into refrigeration evaporator rapidly, accelerates the speed of refrigeration further.
According to one embodiment of present invention, also include: the 3rd detector unit, for opening at the described stop valve of control
After, whether detect the lasting opening time of described stop valve more than the 3rd Preset Time；4th control unit, if holding described in Yong Yu
Continuous opening time more than described 3rd Preset Time, then starts the cold preservation blower fan of described refrigeration system, and wherein, described first presets
Time is more than described 3rd Preset Time.
The control device of refrigeration system according to an embodiment of the invention, when just starting due to stop valve to be opened, cold preservation
The temperature of evaporator surface is the most relatively low, then (when persistently the opening of stop valve when the temperature on refrigeration evaporator surface is relatively low
Between more than three Preset Times time) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
Embodiment according to the fourth aspect of the invention, it is proposed that a kind of refrigerator, including: any one of technique scheme
The described refrigeration system for refrigerator；The control device of the refrigeration system according to any one of technique scheme, therefore, should
Refrigerator have with the refrigeration system for refrigerator according to any one of technique scheme, technique scheme any one of institute
The refrigeration system stated control the identical technique effect of device, do not repeat them here.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 shows the structural representation of the refrigeration system in correlation technique；
Fig. 2 shows the structural representation of refrigeration system according to an embodiment of the 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 controlling device of refrigeration system according to an embodiment of the invention；
Fig. 7 shows the schematic block diagram of refrigerator according to an embodiment of the invention.
Wherein, in Fig. 1 and Fig. 2, corresponding relation between labelling and the component names of accompanying drawing is:
100 refrigeration systems, 102 compressors, 104 three-way valve, 106 refrigerating evaporators, 108 refrigeration evaporators, 110 cut-offs
Valve, 112 condensers, 114 freezing capillary tubies, 116 cold preservation capillary tubies, 118 freezing blower fans, 120 cold preservation blower fans.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, real with concrete below in conjunction with the accompanying drawings
The present invention is further described in detail by mode of executing.It should be noted that in the case of not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but, the present invention also may be used
Implementing to use other to be different from other modes described here, therefore, protection scope of the present invention is not by described below
The restriction of specific embodiment.
Fig. 2 shows the structural representation of refrigeration system 100 according to an embodiment of the invention.
As in figure 2 it is shown, refrigeration system 100 according to an embodiment of the invention, including: compressor 102；Three-way valve 104, three
The entrance of logical valve 104 is connected to the outlet of compressor 102；Stop valve 110 and the refrigerating evaporator 106 being connected in parallel and cold
Hiding vaporizer 108, the entrance of refrigerating evaporator 106 is connected to the first outlet of three-way valve 104, the entrance of refrigeration evaporator 108
Being connected to the second outlet of three-way valve 104, the outlet of refrigeration evaporator 108 is connected to one end of stop valve 110, stop valve 110
The other end and the outlet of refrigerating evaporator 106 be connected to the entrance of compressor 102.
According to an embodiment of the invention for the refrigeration system 100 of refrigerator, at refrigeration evaporator 108 and refrigerating evaporator
Stop valve 110 it is provided with, when starting cold room is freezed, owing to cold-producing medium accumulates in frozen steamed between the outlet of 106
Sending out in device 106, the cold-producing medium in refrigeration evaporator 108 is less, by closing stop valve 110, at compressor 102 by cold-producing medium
During extracting from refrigerating evaporator 106, compressor 102 can be avoided the cold-producing medium in refrigeration evaporator 108
Extract out, such that it is able to accelerate the speed of refrigeration.
According to one embodiment of present invention, stop valve 110 is unidirectional stop valve, and the entrance of stop valve 110 is connected to
The outlet of refrigeration evaporator 108, the outlet of stop valve 110 is connected to the entrance of compressor 102.
According to an embodiment of the invention for the refrigeration system 100 of refrigerator, by refrigeration evaporator 108 and frozen steamed
Send out and be provided with unidirectional stop valve 110 between the outlet of device 106, it is to avoid unidirectional stop valve 110 cold-producing medium when opening is back to
Refrigeration evaporator 108, thus ensure that the refrigeration system 100 reliability when freezing.
According to one embodiment of present invention, also including: condenser 112, the entrance of condenser 112 is connected to compressor
The outlet of 102, the outlet of condenser 112 is connected to the entrance of three-way valve 104.
According to an embodiment of the invention for the refrigeration system 100 of refrigerator, by condenser 112 to compressor 102 row
The high-pressure refrigerant of the gaseous state gone out carries out dispelling the heat to be converted into liquid, thus ensure that refrigeration system 100 can normally be carried out
Kind of refrigeration cycle.
According to one embodiment of present invention, also including: freezing capillary tube 114, the two ends of freezing capillary tube 114 connect respectively
It is connected to the first outlet and the entrance of refrigerating evaporator 106；Cold preservation capillary tube 116, the two ends of cold preservation capillary tube 116 are respectively connecting to
Second outlet and the entrance of refrigeration evaporator 108.
According to an embodiment of the invention for the refrigeration system 100 of refrigerator, by freezing capillary tube 114 and cold preservation capillary
Pipe 116 carries out, to the cold-producing medium flowing into refrigerating evaporator 106 and refrigeration evaporator 108, the control that throttles, to ensure refrigeration system 100
Uniformly reliably freeze.
According to one embodiment of present invention, also include: freezing blower fan 118 and cold preservation blower fan 120, refrigerating chamber is being carried out
Start freezing blower fan 118 during refrigeration, start cold preservation blower fan 120 when cold room is freezed.
Fig. 3 shows the schematic flow diagram of the control method of refrigeration system according to an embodiment of the invention.
As it is shown on figure 3, the control method of refrigeration system according to an embodiment of the invention, for any of the above-described item
Refrigeration system be controlled, control method includes:
Step 302, when the cold room determining refrigerator has refrigeration demand, controls stop valve and the first outlet is turned off, with
And control compressor operating.
Preferably, also including: when determining that cold room has refrigeration demand, the freezing blower fan controlling refrigeration system is in operation
State.When cold-producing medium is extracted out from refrigerating evaporator by compressor, by starting freezing blower fan, thus accelerate refrigerating evaporator
Heat exchange, and then accelerate to extract the speed of cold-producing medium from refrigerating evaporator so that cold-producing medium is flowed into cold preservation evaporation rapidly
Device, accelerates the speed of refrigeration further.
Step 304, whether the continuously off time of detection stop valve and the first outlet is more than the first Preset Time.
Preferably, also include: whether the detection freezing blower fan operation time after cold room has refrigeration demand is more than the
Two Preset Times；If the freezing blower fan operation time after cold room has refrigeration demand more than the second Preset Time, then closes
Freezing blower fan, wherein, the first Preset Time is more than the second Preset Time.
Step 306, if the continuously off time is more than the first Preset Time, then controls stop valve and opens.
Preferably, in step 302, also include: when determining that cold room has refrigeration demand, control the second outlet and open.
Or within step 306, also include: when the continuously off time is more than the first Preset Time, control the second outlet and opens.Permissible
Open the second outlet when cold room has refrigeration demand, i.e. when cold room has refrigeration demand, cold-producing medium is flowed into refrigeration evaporator
In；The second outlet can also be opened when the continuously off time of stop valve is more than the first Preset Time, will refrigerating evaporator
In cold-producing medium extracted out after make cold-producing medium be flowed in refrigeration evaporator again, thus realize the normal refrigeration to cold room.
Preferably, after step 306, whether the lasting opening time of detection stop valve is more than the 3rd Preset Time；If holding
Continuous opening time more than the 3rd Preset Time, then starts the cold preservation blower fan of refrigeration system, and wherein, the first Preset Time is more than the 3rd
Preset Time.When just starting due to stop valve to be opened, the temperature on refrigeration evaporator surface is the most relatively low, then at refrigeration evaporator
Cold preservation blower fan is restarted (when the lasting opening time of stop valve is more than three Preset Times) when the temperature on surface is relatively low, permissible
Reduce the power consumption of refrigeration system.
In technique scheme, when starting cold room is freezed, owing to cold-producing medium accumulates in refrigerating evaporator
In, the cold-producing medium in refrigeration evaporator is less, therefore, by controlling compressor operating by the cold-producing medium in refrigerating evaporator
Extracting out, so that the cold-producing medium in refrigerating evaporator can flow rapidly in condenser, stop valve is closed simultaneously, it is to avoid cold preservation
Cold-producing medium in vaporizer is extracted out by compressor.Therefore, by technique scheme, when can be avoided long in refrigeration evaporator
Between do not have cold-producing medium to arrive, thus shorten cold preservation and run the time, and then reduce the power consumption of refrigerator.It addition, at stop valve
When the continuously off time is more than the first Preset Time (such as, 0-10 minute), the cold-producing medium major part in refrigerating evaporator is described
It is extracted, has then opened stop valve, so that refrigeration system enters normal kind of 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, including:
Step 402, freezing switching cold preservation runs, and i.e. is switched to freeze cold room from refrigerating chamber carries out refrigeration,
Determine that cold room has refrigeration demand in this case.
Step 404, shuts down cold preservation request refrigeration, i.e. when refrigerating chamber and cold room all do not freeze, receives cold room
Carry out the signal freezed, determine that cold room has refrigeration demand in this case.
Step 406, closes unidirectional stop valve, and three-way valve had both been disconnected cold preservation and also disconnected freezing (i.e. two of three-way valve
Outlet is turned off), compressor is in running status, freezing blower fan late release.Wherein, when freezing switching cold preservation runs, pressure
Contracting machine and freezing blower fan are now at running status, now need not be controlled compressor and freezing blower fan；Work as shutdown
During cold preservation request refrigeration, compressor and freezing blower fan are now in inactive state, then start compressor and freezing blower fan.And
Freezing blower fan is closed after starting 0-3 minute (not including 0 minute) of freezing blower fan.
Step 408, after lasting 0-10 minute (not including 0 minute), opens unidirectional stop valve, and three-way valve leads to cold
Hiding, cold preservation blower fan delay start, such as, cold preservation blower fan starts after postponing 0-3 minute (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 it is shown in figure 5, the control method of refrigeration system according to still another embodiment of the invention, including:
Step 502, freezing switching cold preservation runs, and i.e. is switched to freeze cold room from refrigerating chamber carries out refrigeration,
Determine that cold room has refrigeration demand in this case.
Step 504, shuts down cold preservation request refrigeration, i.e. when refrigerating chamber and cold room all do not freeze, receives cold room
Carry out the signal freezed, determine that cold room has refrigeration demand in this case.
Step 506, closes unidirectional stop valve, and cold preservation connected by three-way valve, but disconnects freezing (i.e. the first outlet of three-way valve
Closing, the second outlet is opened), compressor is in running status, freezing blower fan late release.Wherein, when freezing switching cold preservation fortune
During row, compressor and freezing blower fan are now at running status, now need not be controlled compressor and freezing blower fan；
When shutting down cold preservation request refrigeration, compressor and freezing blower fan are now in inactive state, then start compressor and freezing wind
Machine.And after starting 0-3 minute (not including 0 minute) of freezing blower fan, close freezing blower fan.
Step 508, after lasting 0-10 minute, opens unidirectional stop valve, and three-way valve still leads to cold preservation, cold preservation blower fan
Delay start, such as, cold preservation blower fan starts after postponing 0-3 minute (not including 0 minute).
Fig. 6 shows the schematic block diagram controlling device of refrigeration system according to an embodiment of the invention.
As shown in Figure 6, the control device 600 of refrigeration system according to an embodiment of the invention, for above-mentioned technical side
Refrigeration system any one of case is controlled, and the control device 600 of refrigeration system includes: the first control unit 602, first is examined
Survey unit 604 and the second control unit 606.
First control unit 602, for when the cold room determining refrigerator has refrigeration demand, controls stop valve and first and goes out
Mouth is turned off, and controls compressor operating.
Preferably, the first control unit 602 is additionally operable to, and when determining that cold room has refrigeration demand, controls the second outlet and beats
Opening, i.e. when cold room has refrigeration demand, cold-producing medium is flowed in refrigeration evaporator.
Preferably, the first control unit 602 is additionally operable to, and when determining that cold room has refrigeration demand, controls refrigeration system
Freezing blower fan is in running status.
First detector unit 604, the most pre-more than first for detecting the continuously off time of stop valve and the first outlet
If the time.
Preferably, the control device 600 of refrigeration system also includes: the second detector unit 608 and the 3rd control unit 610.
Wherein, the second detector unit 608 is for detecting whether the freezing blower fan operation time after cold room has refrigeration demand is more than
Second Preset Time；3rd control unit 610, if big for the freezing blower fan operation time after cold room has refrigeration demand
In the second Preset Time, then closing freezing blower fan, wherein, the first Preset Time is more than the second Preset Time.Compressor will refrigeration
When agent is extracted out from refrigerating evaporator, by starting freezing blower fan, thus accelerate the heat exchange of refrigerating evaporator, so accelerate from
Refrigerating evaporator extracts the speed of cold-producing medium so that cold-producing medium is flowed into refrigeration evaporator rapidly, accelerates further
The speed of refrigeration.
Second control unit 606, if for the continuously off time more than the first Preset Time, then controls stop valve and opens.
Preferably, not controlling in the case of the second outlet opens in the first control unit 602, the second control unit 606 is also
For, when the continuously off time is more than the first Preset Time, controls the second outlet and opens.Will refrigeration in refrigerating evaporator
Agent makes cold-producing medium be flowed in refrigeration evaporator after having extracted out again, thus realizes the normal refrigeration to cold room.
Preferably, the control device 600 of refrigeration system also includes: the 3rd detector unit 612 and the 4th control unit 614.
Wherein, the 3rd detector unit 612 is for controlling after stop valve opens, and whether the lasting opening time of detection stop valve is more than the
Three Preset Times；4th control unit 614, if being more than the 3rd Preset Time for continuing opening time, then starts refrigeration system
Cold preservation blower fan, wherein, the first Preset Time be more than the 3rd Preset Time.When just starting due to stop valve to be opened, cold preservation is steamed
The temperature sending out device surface is the most relatively low, then (the lasting opening time of stop valve when the temperature on refrigeration evaporator surface is relatively low
During more than three Preset Times) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
In technique scheme, when starting cold room is freezed, owing to cold-producing medium accumulates in refrigerating evaporator
In, the cold-producing medium in refrigeration evaporator is less, therefore, by controlling compressor operating by the cold-producing medium in refrigerating evaporator
Extracting out, so that the cold-producing medium in refrigerating evaporator can flow rapidly in condenser, stop valve is closed simultaneously, it is to avoid cold preservation
Cold-producing medium in vaporizer is extracted out by compressor.Therefore, by technique scheme, when can be avoided long in refrigeration evaporator
Between do not have cold-producing medium to arrive, thus shorten cold preservation and run the time, and then reduce the power consumption of refrigerator.It addition, at stop valve
When the continuously off time is more than the first Preset Time (such as, 0-10 minute), the cold-producing medium major part in refrigerating evaporator is described
It is extracted, has then opened stop valve, so that refrigeration system enters normal kind of refrigeration cycle.
Fig. 7 shows the schematic block diagram of refrigerator according to an embodiment of the invention.
As it is shown in fig. 7, refrigerator 700 according to an embodiment of the invention, including: being used for any one of technique scheme
The refrigeration system 100 of refrigerator；The control device 600 of the refrigeration system any one of technique scheme, therefore, this refrigerator 700
Have and the refrigeration system 100 for refrigerator any one of technique scheme, the refrigeration any one of technique scheme
System control the identical technique effect of device 600, do not repeat them here.
Technical scheme is described in detail above in association with accompanying drawing, by technical scheme, can avoid
Refrigeration evaporator does not has the cold-producing medium to arrive for a long time, thus shortens cold preservation and run the time, and then reduce the merit of refrigerator
Consumption.
In the present invention, term " first ", " second " are only used for the purpose described, and it is not intended that indicate or hint phase
To importance；Term " multiple " represents two or more；Term " is connected ", " connection " etc. all should be interpreted broadly, such as,
It can be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be to be joined directly together, it is also possible to by centre
Medium is indirectly connected to.For the ordinary skill in the art, can understand that above-mentioned term is at this as the case may be
Concrete meaning in bright.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (13)
1. the refrigeration system for refrigerator, it is characterised in that including:
Compressor；
Three-way valve, the entrance of described three-way valve is connected to the outlet of described compressor；
Stop valve and the refrigerating evaporator being connected in parallel and refrigeration evaporator, the entrance of described refrigerating evaporator is connected to institute
Stating the first outlet of three-way valve, the entrance of described refrigeration evaporator is connected to the second outlet of described three-way valve, and described cold preservation is steamed
The outlet sending out device is connected to one end of described stop valve, and the other end of described stop valve and the outlet of described refrigerating evaporator all connect
It is connected to the entrance of described compressor.
Refrigeration system for refrigerator the most according to claim 1, it is characterised in that described stop valve is unidirectional cutoff
Valve, and the entrance of described stop valve is connected to the outlet of described refrigeration evaporator, the outlet of described stop valve is connected to described pressure
The entrance of contracting machine.
Refrigeration system for refrigerator the most according to claim 1 and 2, it is characterised in that also include:
Condenser, the entrance of described condenser is connected to the outlet of described compressor, and the outlet of described condenser is connected to described
The entrance of three-way valve.
Refrigeration system for refrigerator the most according to claim 1 and 2, it is characterised in that also include:
Freezing capillary tube, the two ends of described freezing capillary tube are respectively connecting to entering of described first outlet and described refrigerating evaporator
Mouthful；
Cold preservation capillary tube, the two ends of described cold preservation capillary tube are respectively connecting to described second outlet and the entering of described refrigeration evaporator
Mouthful.
5. the control method of a refrigeration system, it is characterised in that for the system as according to any one of Claims 1-4
Cooling system is controlled, and described control method includes:
When the cold room determining refrigerator has refrigeration demand, control described stop valve and described first outlet is turned off, and control
Make described compressor operating；
Whether the continuously off time of described stop valve and described first outlet of detecting is more than the first Preset Time；
If the described continuously off time is more than described first Preset Time, then controls described stop valve and open.
The control method of refrigeration system the most according to claim 5, it is characterised in that also include:
When determining that described cold room has refrigeration demand, control described second outlet and open；Or
When the described continuously off time is more than described first Preset Time, controls described second outlet and open.
7. according to the control method of the refrigeration system described in claim 5 or 6, it is characterised in that also include:
When determining that described cold room has refrigeration demand, the freezing blower fan controlling described refrigeration system is in running status, and examines
Whether survey the described freezing blower fan operation time after described cold room has refrigeration demand more than the second Preset Time；
If the described freezing blower fan operation time after described cold room has refrigeration demand is more than described second Preset Time, then
Close described freezing blower fan,
Wherein, described first Preset Time is more than described second Preset Time.
8. according to the control method of the refrigeration system described in claim 5 or 6, it is characterised in that also include:
After the described stop valve of control is opened, whether detect the lasting opening time of described stop valve more than the 3rd Preset Time；
If the described opening time that continues is more than described 3rd Preset Time, then start the cold preservation blower fan of described refrigeration system,
Wherein, described first Preset Time is more than described 3rd Preset Time.
9. the control device of a refrigeration system, it is characterised in that for the system as according to any one of Claims 1-4
Cooling system is controlled, and described control device includes:
First control unit, for when the cold room determining refrigerator has refrigeration demand, controls described stop valve and described first
Outlet is turned off, and controls described compressor operating；
First detector unit, the most pre-more than first for detecting the continuously off time of described stop valve and described first outlet
If the time；
Second control unit, if for the described continuously off time more than described first Preset Time, then controlling described stop valve
Open.
The control device of refrigeration system the most according to claim 9, it is characterised in that
Described first control unit is additionally operable to, and when determining that described cold room has refrigeration demand, controls described second outlet and opens；
Or
Described second control unit is additionally operable to, and when the described continuously off time is more than described first Preset Time, controls described
Second outlet is opened.
11. according to the control device of the refrigeration system described in claim 9 or 10, it is characterised in that
Described first control unit is additionally operable to, and when determining that described cold room has refrigeration demand, controls the cold of described refrigeration system
Frostbite machine is in running status；And also include:
Whether second detector unit, for detecting the described freezing blower fan operation time after described cold room has refrigeration demand
More than the second Preset Time；
3rd control unit, if for the described freezing blower fan operation time after described cold room has refrigeration demand more than institute
State the second Preset Time, then close described freezing blower fan,
Wherein, described first Preset Time is more than described second Preset Time.
12. according to the control device of the refrigeration system described in claim 9 or 10, it is characterised in that also include:
3rd detector unit, after opening at the described stop valve of control, detects the lasting opening time of described unidirectional stop valve
Whether more than the 3rd Preset Time；
4th control unit, if for the described opening time that continues more than described 3rd Preset Time, then starts described refrigeration system
The cold preservation blower fan of system,
Wherein, described first Preset Time is more than described 3rd Preset Time.
13. 1 kinds of refrigerators, it is characterised in that including:
The refrigeration system for refrigerator as according to any one of Claims 1-4；
The control device of the refrigeration system as according to any one of claim 9 to 12.
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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 CN106091457B (en) | 2019-05-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111520937A (en) * | 2019-02-05 | 2020-08-11 | 奥迪股份公司 | Method for operating a refrigerant circuit of a refrigeration system of a vehicle |
| CN114992974A (en) * | 2022-06-28 | 2022-09-02 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and refrigerator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3461736B2 (en) * | 1998-10-15 | 2003-10-27 | 松下冷機株式会社 | refrigerator |
| JP3576040B2 (en) * | 1999-06-10 | 2004-10-13 | 松下冷機株式会社 | Cooling systems and refrigerators |
| JP3464949B2 (en) * | 1999-09-21 | 2003-11-10 | 株式会社東芝 | refrigerator |
| JP3462156B2 (en) * | 1999-11-30 | 2003-11-05 | 株式会社東芝 | refrigerator |
| KR100404984B1 (en) * | 2000-08-24 | 2003-11-10 | 가부시끼가이샤 도시바 | Refrigerator and controlling method therefor |
| JP2003035481A (en) * | 2001-07-23 | 2003-02-07 | Hitachi Ltd | Refrigerator |
| EP1376031B1 (en) * | 2002-06-26 | 2016-10-12 | LG Electronics, Inc. | Method for controlling operation of cooling system having two evaporators |
| JP2012017881A (en) * | 2010-07-06 | 2012-01-26 | Toshiba Corp | Refrigerator |
-
2016
- 2016-05-25 CN CN201610373096.5A patent/CN106091457B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111520937A (en) * | 2019-02-05 | 2020-08-11 | 奥迪股份公司 | Method for operating a refrigerant circuit of a refrigeration system of a vehicle |
| CN111520937B (en) * | 2019-02-05 | 2022-03-04 | 奥迪股份公司 | Method for operating a refrigerant circuit of a refrigeration system of a vehicle |
| US11904654B2 (en) | 2019-02-05 | 2024-02-20 | Audi Ag | Method for operating a refrigerant circuit of a cooling system of a vehicle |
| CN114992974A (en) * | 2022-06-28 | 2022-09-02 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and refrigerator |
| CN114992974B (en) * | 2022-06-28 | 2024-04-30 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106091457B (en) | 2019-05-17 |
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