CN105972915A - Control method and control device for refrigeration system, and refrigerator - Google Patents
Control method and control device for refrigeration system, and refrigerator Download PDFInfo
- Publication number
- CN105972915A CN105972915A CN201610372949.3A CN201610372949A CN105972915A CN 105972915 A CN105972915 A CN 105972915A CN 201610372949 A CN201610372949 A CN 201610372949A CN 105972915 A CN105972915 A CN 105972915A
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- refrigeration
- refrigeration system
- preset time
- time
- evaporator
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 160
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000007710 freezing Methods 0.000 claims abstract description 64
- 230000008014 freezing Effects 0.000 claims abstract description 64
- 238000004321 preservation Methods 0.000 claims description 38
- 230000002045 lasting effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 208000001034 Frostbite Diseases 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 2
- 239000006200 vaporizer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Landscapes
- 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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a control method for a refrigeration system. The refrigeration system comprises a three-way valve, a compressor, and a refrigeration chamber evaporator and a freezing chamber evaporator which are connected in parallel, wherein two outlets of the three-way valve are connected to an inlet of the refrigeration chamber evaporator and an inlet of the freezing chamber evaporator respectively. The control method for the refrigeration system comprises the following steps: controlling both of the two outlets to be closed and controlling the compressor to be in a running state while determining that a refrigeration chamber of a refrigerator has a refrigeration need; judging whether a continuous closing time of the two outlets is greater than a first preset time or not; and controlling the outlet connected with the inlet of the refrigeration chamber evaporator in the two outlets to be open if the continuous closing time is greater than the first preset time. Through the abovementioned technical scheme, long-time no arrival of a refrigerant in the refrigeration evaporator can be avoided, thus a running time of refrigeration is shortened, and then power consumption of the refrigerator is reduced.
Description
Technical field
The present invention relates to household electrical appliance technical field, in particular to the control of a kind of refrigeration system
Method, 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: compression
Machine 102, three-way valve 104, refrigerating evaporator 106, refrigeration evaporator 108, condenser 110, cold
Freeze capillary tube 112, cold preservation capillary tube 114, freezing blower fan 116 and cold preservation blower fan 118.When to cold
Freezing room when freezing, the outlet that the entrance with refrigerating evaporator 106 of three-way valve 104 is connected is beaten
Opening, the port closing that the entrance with refrigeration evaporator 108 of three-way valve 104 is connected, cold-producing medium passes through
This outlet flows in refrigerating evaporator 106 through freezing capillary tube 112, and the most freezing blower fan 116 is transported
OK, to realize refrigerating chamber is freezed；When cold room is freezed, three-way valve 104 with
The entrance of refrigeration evaporator 108 be connected outlet open, three-way valve 104 with refrigerating evaporator 106
The port closing that is connected of entrance, cold-producing medium flows into cold preservation through cold preservation capillary tube 114 by this outlet
In vaporizer 108, cold preservation blower fan 118 runs simultaneously, to realize freezing cold room.
When being switched to refrigeration operation by freezing refrigeration, or when shutting down cold preservation request refrigeration, due to
Cold-producing medium accumulates in refrigerating evaporator 106 in a large number so that cold-producing medium have to be from refrigerating evaporator
106 are first drawn out of and flow through condenser 110 afterwards, are finally led to cold preservation capillary tube by three-way valve 104
Entering refrigeration evaporator 108 after 114 throttlings, this transition process is the longest, causes cold preservation to run
In journey, refrigeration evaporator 108 exports 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 when shortening cold preservation operation
Between, reduce refrigerator power consumption and become 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 the control method of a kind of refrigeration system.
Further object is that the control device proposing a kind of refrigeration system.
A further 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
The control method of a kind of refrigeration system, described refrigeration system includes: three-way valve, compressor, parallel connection are even
The refrigerator evaporator connect and freezer evaporator, two outlets of described three-way valve are respectively connecting to institute
State entrance and the entrance of described freezer evaporator of refrigerator evaporator, the control of described refrigeration system
Method includes: when the cold room determining refrigerator has refrigeration demand, controls said two outlet and all closes
Close, and control described compressor and be in starting state；Judge the continuously off time that said two exports
Whether more than the first Preset Time；If the described continuously off time is more than described first Preset Time, then
The outlet that the entrance with described refrigerator evaporator in control said two outlet is connected is opened.
The control method of refrigeration system according to an embodiment of the invention, is starting cold room system
Time cold, owing to cold-producing medium accumulates in refrigerating evaporator, the cold-producing medium in refrigeration evaporator is less,
Therefore, by by two port closings leading to refrigeration evaporator and refrigerating evaporator of three-way valve, this
Time compressor effect be exactly that the cold-producing medium in refrigerating evaporator is extracted out, so that in refrigerating evaporator
Cold-producing medium can flow rapidly in condenser, in continuously off times of two outlets more than first pre-
If during the time, illustrate that the cold-producing medium major part in refrigerating evaporator has been extracted, then by three-way valve
The outlet that is connected of the entrance with described refrigerator evaporator open, so that cold-producing medium is flowed into cold preservation and steams
Send out in device.Therefore, by technique scheme, can be avoided in refrigeration evaporator and do not have for a long time
Cold-producing medium arrives, thus shortens cold preservation and run the time, and then reduces the power consumption of refrigerator.
The control method of refrigeration system according to the abovementioned embodiments of the present invention, it is also possible to there is following skill
Art feature:
According to one embodiment of present invention, also include: determining that described cold room has refrigeration demand
Time, the freezing blower fan controlling described refrigeration system is in running status.
The control method of refrigeration system according to an embodiment of the invention, by starting freezing blower fan, from
And accelerate the heat exchange of refrigerating evaporator, and then accelerate to extract the speed of cold-producing medium from refrigerating evaporator
Degree so that cold-producing medium is flowed into refrigeration evaporator rapidly, accelerates the speed of refrigeration further
Degree.
According to one embodiment of present invention, also include: detect described freezing blower fan at described cold room
Whether there is the operation time after refrigeration demand more than the second Preset Time；If described freezing blower fan is in institute
The operation time after cold room has refrigeration demand of stating more than described second Preset Time, then closes described
Freezing blower fan, wherein, described first Preset Time is more than described second Preset Time.
The control method of refrigeration system according to an embodiment of the invention, due to only to cold room system
Cold, refrigerating chamber is not freezed, therefore, freezing blower fan fortune after cold room has refrigeration demand
The row time is more than closing freezing blower fan during the second Preset Time, it is to avoid freezing blower fan is constantly in operation shape
State and waste electric energy.
According to one embodiment of present invention, also include: control said two outlet in described
The entrance of refrigerator evaporator be connected outlet open after, detection said two outlet in described
Whether the lasting opening time of the outlet that the entrance of refrigerator evaporator is connected is 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 of described refrigeration system
Blower fan, 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, due to three-way valve and cold room
When the outlet that the entrance of vaporizer is connected just starts to be opened, cold-producing medium has just been flowed into refrigeration evaporator
In, the temperature on refrigeration evaporator surface is the most relatively low, then when the temperature on refrigeration evaporator surface is relatively low
(the lasting opening time of the outlet being i.e. connected with the entrance of refrigerator evaporator is more than the 3rd Preset Time
Time) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
According to one embodiment of present invention, described first Preset Time is more than 0 and less than or equal to 8
Minute.
Embodiment according to the second aspect of the invention, it is proposed that the control device of a kind of refrigeration system,
Described refrigeration system includes: three-way valve, compressor, the refrigerator evaporator being connected in parallel and refrigerating chamber
Vaporizer, two outlets of described three-way valve are respectively connecting to entrance and the institute of described refrigerator evaporator
Stating the entrance of freezer evaporator, described control device includes: control unit, for determining refrigerator
Cold room when having refrigeration demand, control said two outlet and be turned off, and control at described compressor
In running status；Judging unit, for judging whether the continuously off time that said two exports is more than
First Preset Time；If described judging unit judges that the described continuously off time presets more than described first
Time, the most described control unit be additionally operable to control said two outlet in described refrigerator evaporator
Entrance be connected outlet open.
The control device of refrigeration system, is starting cold room system according to an embodiment of the invention
Time cold, owing to cold-producing medium accumulates in refrigerating evaporator, the cold-producing medium in refrigeration evaporator is less,
Therefore, by by two port closings leading to refrigeration evaporator and refrigerating evaporator of three-way valve, this
Time compressor effect be exactly that the cold-producing medium in refrigerating evaporator is extracted out, so that in refrigerating evaporator
Cold-producing medium can flow rapidly in condenser, in continuously off times of two outlets more than first pre-
If during the time, illustrate that the cold-producing medium major part in refrigerating evaporator has been extracted, then by three-way valve
The outlet that is connected of the entrance with described refrigerator evaporator open, so that cold-producing medium is flowed into cold preservation and steams
Send out in device.Therefore, by technique scheme, can be avoided in refrigeration evaporator and do not have for a long time
Cold-producing medium arrives, thus shortens cold preservation and run the time, and then reduces the power consumption of refrigerator.
According to one embodiment of present invention, described control unit is additionally operable to, and is determining described cold room
When having refrigeration demand, the freezing blower fan controlling described refrigeration system is in running status.
The control device of refrigeration system according to an embodiment of the invention, by starting freezing blower fan, from
And accelerate the heat exchange of refrigerating evaporator, and then accelerate to extract the speed of cold-producing medium from refrigerating evaporator
Degree so that cold-producing medium is flowed into refrigeration evaporator rapidly, accelerates the speed of refrigeration further
Degree.
According to one embodiment of present invention, also include: the first detector unit, be used for detecting described cold
Whether the frostbite machine operation time after described cold room has refrigeration demand is more than the second Preset Time；
If described first detector unit detects that described freezing blower fan is after described cold room has refrigeration demand
The operation time is more than described second Preset Time, and the most described control unit is additionally operable to close described freezing wind
Machine, 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, due to only to cold room system
Cold, refrigerating chamber is not freezed, therefore, freezing blower fan fortune after cold room has refrigeration demand
The row time is more than closing freezing blower fan during the second Preset Time, it is to avoid freezing blower fan is constantly in operation shape
State and waste electric energy.
According to one embodiment of present invention, also include: the second detector unit, for described in control
After the outlet that the entrance with described refrigerator evaporator in two outlets is connected is opened, detection is described
Whether the lasting opening time of the outlet that the entrance with described refrigerator evaporator in two outlets is connected
More than the 3rd Preset Time；If described second detector unit detects that the described opening time that continues is more than institute
Stating the 3rd Preset Time, the most described control unit is additionally operable to start the cold preservation blower fan of described refrigeration system,
Wherein, described first Preset Time is more than described 3rd Preset Time.
The control device of refrigeration system according to an embodiment of the invention, due to three-way valve and cold room
When the outlet that the entrance of vaporizer is connected just starts to be opened, cold-producing medium has just been flowed into refrigeration evaporator
In, the temperature on refrigeration evaporator surface is the most relatively low, then when the temperature on refrigeration evaporator surface is relatively low
(the lasting opening time of the outlet being i.e. connected with the entrance of refrigerator evaporator is more than the 3rd Preset Time
Time) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
According to one embodiment of present invention, described first Preset Time is more than 0 and less than or equal to 8
Minute.
Embodiment according to the third aspect of the invention we, it is proposed that a kind of refrigerator, including above-mentioned technical side
The control device of the refrigeration system according to any one of case, therefore, this refrigerator has and above-mentioned technical side
Refrigeration system according to any one of case 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 be from following
Description in become obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Embodiment is retouched by the above-mentioned and/or additional aspect of the present invention and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Fig. 1 shows the structural representation of the refrigeration system in correlation technique；
Fig. 2 shows the signal stream of the control method of refrigeration system according to an embodiment of the invention
Cheng Tu；
Fig. 3 shows the signal of the control method of refrigeration system according to another embodiment of the invention
Flow chart；
Fig. 4 shows the schematic block diagram controlling device of refrigeration system according to an embodiment of the invention；
Fig. 5 shows the schematic block diagram of refrigerator according to an embodiment of the invention.
Wherein, in Fig. 1, 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 cold preservations
Vaporizer, 110 condensers, 112 freezing capillary tubies, 114 cold preservation capillary tubies, 116 freezing blower fans,
118 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, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein 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 can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 2 shows the signal stream of the control method of refrigeration system according to an embodiment of the invention
Cheng Tu.
As in figure 2 it is shown, the control method of refrigeration system according to an embodiment of the invention, this system
Cooling system includes: three-way valve, compressor, the refrigerator evaporator being connected in parallel and freezing chamber evaporator
Device, two outlets of three-way valve are respectively connecting to the entrance of refrigerator evaporator and freezer evaporator
Entrance, above-mentioned in the control method of refrigeration system include:
Step 202, when the cold room determining refrigerator has refrigeration demand, controls two outlets and all closes
Close, and control compressor and be in starting state.
Preferably, also include: when determining that cold room has refrigeration demand, control the freezing of refrigeration system
Blower fan is in running status.By starting freezing blower fan, thus accelerate the heat exchange of refrigerating evaporator,
And then accelerate to extract the speed of cold-producing medium from refrigerating evaporator so that cold-producing medium is flowed into cold rapidly
Hide vaporizer, accelerate the speed of refrigeration further.
Step 204, it is judged that whether the continuously off time of two outlets is more than the first Preset Time.
Preferably, the first Preset Time is more than 0 and less than or equal to 8 minutes.
Preferably, also include: the detection freezing blower fan operation time after cold room has refrigeration demand
Whether more than the second Preset Time；If the freezing blower fan operation time after cold room has refrigeration demand
More than the second Preset Time, then closing freezing blower fan, wherein, the first Preset Time is preset more than second
Time.Owing to only cold room being freezed, refrigerating chamber is not freezed, therefore, freezing blower fan
The operation time after cold room has refrigeration demand closes freezing blower fan when being more than the second Preset Time,
Freezing blower fan is avoided to be constantly in running status and waste electric energy.
Preferably, the second Preset Time is more than 0 and less than or equal to 3 minutes.
Step 206, if the continuously off time is more than the first Preset Time, then controls in two outlets
The outlet being connected with the entrance of refrigerator evaporator is opened.
Preferably, also include: the entrance with refrigerator evaporator in controlling two outlets is connected
After outlet is opened, detect two export in the holding of the outlet that is connected of the entrance with refrigerator evaporator
Whether continuous opening time is more than the 3rd Preset Time；If continuing opening time to be more than the 3rd Preset Time,
Then starting the cold preservation blower fan of refrigeration system, wherein, the first Preset Time is more than the 3rd Preset Time.By
When the outlet that the entrance with refrigerator evaporator of three-way valve is connected just starts to be opened, cold-producing medium is firm
Being flowed in refrigeration evaporator, the temperature on refrigeration evaporator surface is the most relatively low, then at refrigeration evaporator
(the lasting opening time of the outlet being connected with the entrance of refrigerator evaporator when the temperature on surface is relatively low
During more than three Preset Times) restart cold preservation blower fan, the power consumption of refrigeration system can be reduced.
Preferably, the 3rd Preset Time is more than 0 and less than or equal to 3 minutes.
In technique scheme, when starting cold room is freezed, owing to cold-producing medium accumulates in
In refrigerating evaporator, the cold-producing medium in refrigeration evaporator is less, therefore, by leading to three-way valve
To refrigeration evaporator and two port closings of refrigerating evaporator, the now effect of compressor is exactly by cold
Freeze the cold-producing medium in vaporizer to extract out, so that the cold-producing medium in refrigerating evaporator can flow rapidly into cold
In condenser, when the continuously off time of two outlets is more than the first Preset Time, freezing and evaporating is described
Cold-producing medium major part in device has been extracted, then by the entrance with refrigerator evaporator of three-way valve
The outlet being connected is opened, so that cold-producing medium is flowed in refrigeration evaporator.Therefore, by above-mentioned technology
Scheme, can be avoided and not have cold-producing medium to arrive in refrigeration evaporator for a long time, thus shorten cold preservation
The operation time, and then reduce the power consumption of refrigerator.
Fig. 3 shows the signal of the control method of refrigeration system according to another embodiment of the invention
Flow chart.
As it is shown on figure 3, the control method of refrigeration system according to another embodiment of the invention, bag
Include:
Step 302, cold preservation request refrigeration.Specifically, if freezing switching cold preservation runs, i.e. to cold
Freezing room to carry out refrigeration and be switched to freeze cold room, this situation is cold preservation request refrigeration.If or
Shut down cold preservation request refrigeration, i.e. when refrigerating chamber and cold room all do not freeze, receive and cold room is entered
The signal of row refrigeration, this situation is cold preservation request refrigeration.
Step 304, cold preservation (the i.e. entrance phase with refrigeration evaporator of three-way valve both disconnected by three-way valve
Port closing even), (i.e. the entrance with refrigerating evaporator of three-way valve is connected also to disconnect freezing
Port closing), compressor is in running status, freezing blower fan late release.Wherein, cut when freezing
When changing cold preservation operation, compressor and freezing blower fan are now at running status, now need not pressure
Contracting machine and freezing blower fan are controlled；When shutting down cold preservation request refrigeration, compressor and freezing blower fan this
Time be in inactive state, then start compressor and freezing blower fan.And starting freezing blower fan 0-3
Freezing blower fan is closed after minute (not including 0 minute).
Step 306, after lasting 0-8 minute (not including 0 minute), three-way valve leads to cold
Hide, properly functioning.
Fig. 4 shows the schematic block diagram controlling device of refrigeration system according to an embodiment of the invention.
As shown in Figure 4, the control device 400 of refrigeration system according to an embodiment of the invention, refrigeration
System includes: three-way valve, compressor, the refrigerator evaporator being connected in parallel and freezer evaporator,
Two outlets of three-way valve are respectively connecting to the entrance of refrigerator evaporator and entering of freezer evaporator
Mouthful, the control device 400 of refrigeration system includes: control unit 402 and judging unit 404.
Control unit 402, for when the cold room determining refrigerator has refrigeration demand, controls two and goes out
Mouthful it is turned off, and controls compressor and be in running status.
Preferably, control unit 402 is additionally operable to, and when determining that cold room has refrigeration demand, controls system
The freezing blower fan of cooling system is in running status.By starting freezing blower fan, thus accelerate freezing and evaporating
The heat exchange of device, and then accelerate to extract the speed of cold-producing medium from refrigerating evaporator so that cold-producing medium is fast
It is flowed into refrigeration evaporator fastly, accelerates the speed of refrigeration further.
Judging unit 404, for judging whether two continuously off times exported preset more than first
Time.If judging unit 404 judges that the continuously off time is more than the first Preset Time, then control unit
402 are additionally operable to control the outlet that the entrance with refrigerator evaporator in two outlets is connected opens.
Preferably, the first Preset Time is more than 0 and less than or equal to 8 minutes.
Preferably, the control device 400 of refrigeration system also includes: the first detector unit 406, is used for
When whether the detection freezing blower fan operation time after cold room has refrigeration demand presets more than second
Between；If the first detector unit 406 detects freezing blower fan operation after cold room has refrigeration demand
Time is more than the second Preset Time, then control unit 402 is additionally operable to close freezing blower fan, wherein, the
One Preset Time is more than the second Preset Time.Owing to only cold room being freezed, refrigerating chamber is not entered
Row refrigeration, therefore, the freezing blower fan operation time after cold room has refrigeration demand is pre-more than second
If closing freezing blower fan during the time, it is to avoid freezing blower fan is constantly in running status and wastes electric energy.
Preferably, the second Preset Time is more than 0 and less than or equal to 3 minutes.
Preferably, the control device 400 of refrigeration system also includes: the second detector unit 408, is used for
After the outlet that the entrance with refrigerator evaporator in controlling two outlets is connected is opened, detect two
Whether the lasting opening time of the outlet that the entrance with refrigerator evaporator in individual outlet is connected is more than the
Three Preset Times；If the second detector unit 408 detects when lasting opening time is preset more than the 3rd
Between, then control unit 402 is additionally operable to start the cold preservation blower fan of refrigeration system, and wherein, first when presetting
Between more than the 3rd Preset Time.The outlet being connected due to the entrance with refrigerator evaporator of three-way valve is firm
When starting to be opened, cold-producing medium has just been flowed in refrigeration evaporator, and the temperature on refrigeration evaporator surface is also
The most relatively low, then (the entrance phase with refrigerator evaporator when the temperature on refrigeration evaporator surface is relatively low
When the lasting opening time of outlet even is more than three Preset Times) restart cold preservation blower fan, can drop
The power consumption of low refrigeration system.
In technique scheme, when starting cold room is freezed, owing to cold-producing medium accumulates in
In refrigerating evaporator, the cold-producing medium in refrigeration evaporator is less, therefore, by leading to three-way valve
To refrigeration evaporator and two port closings of refrigerating evaporator, the now effect of compressor is exactly by cold
Freeze the cold-producing medium in vaporizer to extract out, so that the cold-producing medium in refrigerating evaporator can flow rapidly into cold
In condenser, when the continuously off time of two outlets is more than the first Preset Time, freezing and evaporating is described
Cold-producing medium major part in device has been extracted, then by the entrance with refrigerator evaporator of three-way valve
The outlet being connected is opened, so that cold-producing medium is flowed in refrigeration evaporator.Therefore, by above-mentioned technology
Scheme, can be avoided and not have cold-producing medium to arrive in refrigeration evaporator for a long time, thus shorten cold preservation
The operation time, and then reduce the power consumption of refrigerator.
Fig. 5 shows the schematic block diagram of refrigerator according to an embodiment of the invention.
As it is shown in figure 5, refrigerator 500 according to an embodiment of the invention, including in technique scheme
The control device 400 of the refrigeration system of any one, therefore, this refrigerator 500 has and above-mentioned technical side
Refrigeration system any one of case control the identical technique effect of device 400, do not repeat them here.
Technical scheme is described in detail, by the technical side of the present invention above in association with accompanying drawing
Case, can avoid not having cold-producing medium to arrive in refrigeration evaporator for a long time, thus shortens cold preservation and run
Time, and then reduce the power consumption of refrigerator.
In the present invention, term " first ", " second " are only used for the purpose described, and can not manage
Solve as instruction or hint relative importance；Term " multiple " represents two or more；Term
" be connected ", " connection " etc. all should be interpreted broadly, and connects for example, it may be fixing, it is also possible to
It is to removably connect, or is integrally connected；Can be to be joined directly together, it is also possible to by between intermediary
Connect connected.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
Language concrete meaning in the present invention.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (10)
1. a control method for refrigeration system, described refrigeration system includes: three-way valve, compression
Machine, the refrigerator evaporator being connected in parallel and freezer evaporator, two outlets point of described three-way valve
Not being connected to entrance and the entrance of described freezer evaporator of described refrigerator evaporator, its feature exists
In, the control method of described refrigeration system includes:
When the cold room determining refrigerator has refrigeration demand, control said two outlet and be turned off, and control
Make described compressor and be in running status；
Judge whether the continuously off time that said two exports is more than the first Preset Time；
If the described continuously off time is more than described first Preset Time, then control in said two outlet
The outlet that is connected of the entrance with described refrigerator evaporator open.
The control method of refrigeration system the most according to claim 1, it is characterised in that also wrap
Include:
When determining that described cold room has refrigeration demand, the freezing blower fan controlling described refrigeration system is in
Running status.
The control method of refrigeration system the most according to claim 2, it is characterised in that also wrap
Include:
Detect whether the described freezing blower fan operation time after described cold room has refrigeration demand is more than
Second Preset Time；
If the described freezing blower fan operation time after described cold room has refrigeration demand is more than described the
Two Preset Times, then close described freezing blower fan,
Wherein, described first Preset Time is more than described second Preset Time.
The control method of refrigeration system the most according to any one of claim 1 to 3, it is special
Levy and be, also include:
The outlet that the entrance with described refrigerator evaporator in controlling said two outlet is connected is opened
Afterwards, holding of the outlet that the entrance with described refrigerator evaporator in the outlet of detection said two is connected
Whether continuous opening time is more than the 3rd Preset Time；
If the described opening time that continues is more than described 3rd Preset Time, then start described refrigeration system
Cold preservation blower fan,
Wherein, described first Preset Time is more than described 3rd Preset Time.
The control method of refrigeration system the most according to any one of claim 1 to 3, it is special
Levying and be, described first Preset Time is more than 0 and less than or equal to 8 minutes.
6. a control device for refrigeration system, described refrigeration system includes: three-way valve, compression
Machine, the refrigerator evaporator being connected in parallel and freezer evaporator, two outlets point of described three-way valve
Not being connected to entrance and the entrance of described freezer evaporator of described refrigerator evaporator, its feature exists
In, the control device of described refrigeration system includes:
Control unit, for when the cold room determining refrigerator has refrigeration demand, controls said two and goes out
Mouthful it is turned off, and controls described compressor and be in running status；
Judging unit, for judging whether the continuously off time that said two exports presets more than first
Time；
If described judging unit judges that the described continuously off time is more than described first Preset Time, then institute
State control unit be additionally operable to control said two outlet in the entrance with described refrigerator evaporator be connected
Outlet open.
The control device of refrigeration system the most according to claim 6, it is characterised in that
Described control unit is additionally operable to, and when determining that described cold room has refrigeration demand, controls described system
The freezing blower fan of cooling system is in running status.
The control device of refrigeration system the most according to claim 7, it is characterised in that also wrap
Include:
First detector unit, is used for detecting described freezing blower fan after described cold room has refrigeration demand
The operation time whether more than the second Preset Time；
If described first detector unit detect described freezing blower fan described cold room have refrigeration demand it
After the operation time more than described second Preset Time, the most described control unit is additionally operable to close described cold
Frostbite machine,
Wherein, described first Preset Time is more than described second Preset Time.
9., according to the control device of the refrigeration system according to any one of claim 6 to 8, it is special
Levy and be, also include:
Second detector unit, in control said two outlet with described refrigerator evaporator
After the outlet that entrance is connected is opened, in detection said two outlet with described refrigerator evaporator
Whether the lasting opening time of the outlet that entrance is connected is more than the 3rd Preset Time；
If described second detector unit detects when described lasting opening time is preset more than the described 3rd
Between, the most described control unit is additionally operable to start the cold preservation blower fan of described refrigeration system,
Wherein, described first Preset Time is more than described 3rd Preset Time.
10. a refrigerator, it is characterised in that including: as according to any one of claim 6 to 9
The control device of refrigeration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372949.3A CN105972915A (en) | 2016-05-25 | 2016-05-25 | Control method and control device for refrigeration system, and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372949.3A CN105972915A (en) | 2016-05-25 | 2016-05-25 | Control method and control device for refrigeration system, and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105972915A true CN105972915A (en) | 2016-09-28 |
Family
ID=57010110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610372949.3A Pending CN105972915A (en) | 2016-05-25 | 2016-05-25 | Control method and control device for refrigeration system, and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105972915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473568A (en) * | 2019-01-23 | 2020-07-31 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
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