CN104879941B - Cooling cycle system of refrigerator, condensation prevention control method and refrigerator - Google Patents
Cooling cycle system of refrigerator, condensation prevention control method and refrigerator Download PDFInfo
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- CN104879941B CN104879941B CN201510296614.3A CN201510296614A CN104879941B CN 104879941 B CN104879941 B CN 104879941B CN 201510296614 A CN201510296614 A CN 201510296614A CN 104879941 B CN104879941 B CN 104879941B
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- humidity
- refrigeration evaporator
- cooling cycle
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- 238000009833 condensation Methods 0.000 title claims abstract description 39
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 230000005494 condensation Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 98
- 239000003507 refrigerant Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000007710 freezing Methods 0.000 claims description 10
- 230000008014 freezing Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000010257 thawing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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
-
- 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
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
Abstract
The invention discloses a kind of cooling cycle system of refrigerator, it is sequentially connected including head and the tail to constitute the compressor of refrigerant circulation circuit, condenser, first throttle device and refrigeration evaporator, using refrigerant flow where first throttle device and refrigeration evaporator as first flow path, cooling cycle system of refrigerator also includes humidity sensor, three-way control valve, it is sequentially connected the second throttling device and auxiliary refrigeration evaporator to constitute second flow path, first flow path is arranged in parallel and is formed with the first sys node and the second sys node being sequentially distributed along refrigerant flow direction with second flow path, three-way control valve is arranged at the first sys node, when the humidity of humidity sensor detection is more than predetermined threshold value, three-way control valve at least gates second flow path.The invention also discloses a kind of condensation prevention control method and refrigerator.Dew condensation phenomenon not only is reduced by using the frosting effect of auxiliary refrigeration evaporator, and ensure that the refrigeration of refrigerator room.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of cooling cycle system of refrigerator, condensation prevention control method and
Refrigerator.
Background technology
Refrigerator compartment internal-external temperature difference is larger, and the vapor in environment enters after refrigerator compartment, and vapor is because by temperature difference
Influence and rise to the top of refrigerating chamber case courage and occur dew condensation phenomenon, condensation can not only adsorb dust in air and thin
Bacterium, and it is smelly etc. that interior metal parts rust corrosion, plastic components can be caused to mildew, and is unfavorable for food fresh-keeping.
It is main at present that condensation is prevented by setting dew eliminating tube and electric heating assembly, but high-temperature heating can be to refrigerator compartment
Refrigeration impact, cause thermic load to increase, while temperature fluctuation can be caused, be unfavorable for food fresh-keeping.
The content of the invention
It is a primary object of the present invention to provide a kind of cooling cycle system of refrigerator, it is intended to solve existing anti-condensation mode
The energy consumption of refrigerator can be increased, while being unfavorable for the technical problem of food fresh-keeping.
To achieve the above object, the present invention provides a kind of cooling cycle system of refrigerator, including head and the tail are sequentially connected to constitute
Compressor, condenser, first throttle device and the refrigeration evaporator of refrigerant circulation circuit, with the first throttle device and refrigeration
Refrigerant flow where evaporator is first flow path, the cooling cycle system of refrigerator also include humidity sensor, three-way control valve,
It is sequentially connected the second throttling device and auxiliary refrigeration evaporator to constitute second flow path, the first flow path and the second flow path
It is arranged in parallel and is formed with the first sys node and the second sys node being sequentially distributed along refrigerant flow direction, the threeway
Control valve is arranged at first sys node, when the humidity of the humidity sensor detection is more than predetermined threshold value, and described three
Logical control valve at least gates the second flow path.
Preferably, the humidity sensor is used for the outside ambient humidity for detecting the refrigerator, or for detecting
State the indoor ambient humidity of refrigerator；Or, the humidity sensor is two, and one of them is used to detect the refrigerator
Outside ambient humidity, another is used for appointing in the indoor ambient humidity for detecting the refrigerator, humidity sensor described in two
When the humidity of one detection of meaning is more than predetermined threshold value, the three-way control valve at least gates the second flow path.
Preferably, the three-way control valve is substituted by two two logical control valves, and one of them described two logical control valve is set
In first flow path and positioned at the entrance point of the first throttle device, another described two logical control valve is arranged on described second
On stream and positioned at the entrance point of the second throttling device, when the humidity of the humidity sensor detection is more than predetermined threshold value,
Two logical control valves being located at least in the second flow path are opened.
Preferably, the humidity sensor is used for the outside ambient humidity for detecting the refrigerator, or for detecting
State the indoor ambient humidity of refrigerator；Or, the humidity sensor is two, and one of them is used for the room for detecting the refrigerator
Outside environment humidity, another is used for any in the indoor ambient humidity for detecting the refrigerator, humidity sensor described in two
When the humidity of one detection is more than predetermined threshold value, two logical control valves being located at least in the second flow path are opened.
Preferably, the first throttle device is the first capillary, and the second throttling device is the second capillary, described
The length of second capillary is more than the length of first capillary.
Preferably, the cooling cycle system of refrigerator also includes the device for drying and filtering being arranged in the refrigerant circulation circuit
And gas-liquid separator, the device for drying and filtering be located between the condenser and first sys node, the gas-liquid separation
Device is located between second sys node and the compressor.
In addition, to achieve the above object, the present invention also provides a kind of condensation prevention control method, to any of the above-described technical side
Cooling cycle system of refrigerator described in case is controlled, and the condensation prevention control method comprises the following steps：When the refrigerator
When the ambient parameter of cooling cycle system detection meets preparatory condition, start compressor and at least gate second flow path.
Preferably, the ambient parameter includes ambient humidity, the ambient humidity detected when the cooling cycle system of refrigerator
During more than predetermined threshold value, start compressor and at least gate second flow path；Or, the ambient parameter includes refrigerator room temperature
And ambient humidity, it is more than when the refrigerator room temperature that the cooling cycle system of refrigerator is detected is more than preset temperature and ambient humidity
During predetermined threshold value, start compressor and at least gate second flow path.
Preferably, it is described startup compressor and at least gating second flow path the step of after also include：Work as second flow path
Run time be more than preset time when, close second flow path.
In addition, to achieve the above object, the present invention also provide limited in a kind of refrigerator, including casing, the casing it is cold
Compartment is hidden, the refrigerator also includes the cooling cycle system of refrigerator described in any of the above-described technical scheme, and the auxiliary refrigeration is steamed
Device is sent out to be located in the refrigerator room.
Preferably, the auxiliary refrigeration evaporator is set on the postnotum of the refrigerator room, and the auxiliary refrigeration evaporation
Device is located at the defrosting water being provided with the top of the refrigeration evaporator, the postnotum for accepting the auxiliary refrigeration evaporator
Rhone；Or, the auxiliary refrigeration evaporator is arranged on the top plate of the refrigerator room, and the refrigerator also includes being arranged on
The lower section of the auxiliary refrigeration evaporator is for accepting the drip tray of the defrosting water of the auxiliary refrigeration evaporator.
A kind of cooling cycle system of refrigerator provided by the present invention, is used to guide the vapor in refrigerator room by increasing
The auxiliary refrigeration evaporator of frosting, when the humidity that humidity sensor is detected is more than predetermined threshold value, in control refrigerant circulation circuit
Refrigerant flows through second flow path and auxiliary refrigeration evaporator is worked, so that vapor is directly tied on the surface of auxiliary refrigeration evaporator
Frost, so as to prevent vapor condensation on the inwall of refrigerator room, and can also be refrigeration during the work of auxiliary refrigeration evaporator
Compartment provides cold, to maintain the low temperature environment of refrigerator room, so as to be conducive to food fresh-keeping.
Brief description of the drawings
Fig. 1 is the stream schematic diagram of the embodiment of cooling cycle system of refrigerator one of the present invention；
Fig. 2 is the stream schematic diagram of another embodiment of cooling cycle system of refrigerator of the present invention；
Fig. 3 is the schematic flow sheet of the embodiment of condensation prevention control method one of the present invention；
Fig. 4 is the schematic flow sheet of another embodiment of condensation prevention control method of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to accompanying drawing in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of cooling cycle system of refrigerator, referring to Fig. 1, in one embodiment, the refrigerator refrigerating circulation system
System includes being sequentially connected from beginning to end constituting the compressor 100 of refrigerant circulation circuit, condenser 101, first throttle device 104 and cold
Evaporator 106 is hidden, in addition, the cooling cycle system of refrigerator for being configured with freezing function, it also includes refrigerating evaporator 105,
The refrigerating evaporator 105 is located between first throttle device 104 and refrigeration evaporator 106, and wherein refrigerating evaporator 105 is used to give
One closed chamber manufactures freezing conditions, such as it is -26 DEG C~-4 DEG C of freezing compartment to form design temperature, and refrigeration evaporator
106 are used to manufacture refrigerated condition to another closed chamber, such as it is 0~10 DEG C of refrigerator room to form design temperature, and
The refrigeration modes of refrigerating evaporator 105 and refrigeration evaporator 106 can be with identical during practical application, can also be different, such as freeze
Evaporator 105 is located in freezing compartment using direct refrigeration-type, i.e. refrigerating evaporator 105, and refrigeration evaporator 106 is using indirect
Refrigeration-type, i.e. refrigeration evaporator 106 are located at outside refrigerator room, and carry out heat exchange by the locular wall of refrigerator room.
As shown in figure 1, with the first throttle device 104, refrigerating evaporator 105 and the place refrigerant of refrigeration evaporator 106
Stream is first flow path 200.In addition, the cooling cycle system of refrigerator also include humidity sensor 112, three-way control valve 103, according to
Secondary connection is to constitute the second throttling device 108 and auxiliary refrigeration evaporator 109 of second flow path 300, wherein auxiliary refrigeration evaporator 109
It is correspondingly arranged with refrigeration evaporator 106, such as auxiliary refrigeration evaporator 109 is located in refrigerator room, utilizes auxiliary refrigeration evaporator 109
Vapor in refrigerator room is guided, and makes vapor frosting on the surface of auxiliary refrigeration evaporator 109, so as to prevent
Occurs the phenomenon of condensation on the internal face of refrigerator room.Wherein, the three-way control valve 103 of the present embodiment can be threeway electromagnetism
Valve or electronically controlled proportional valve, can flexibly be selected in practical application.
Specifically, first flow path 200 is arranged in parallel with second flow path 300 and is formed with along refrigerant flow direction and divides successively
The first sys node and the second sys node of cloth, three-way control valve 103 are arranged at the first sys node, therefore can be by this
Three-way control valve 103 controls flow direction of the refrigerant at the first sys node, such as refrigerant is all flowed to first flow path 200 or the
Two streams 300, or refrigerant is shunted, a part of refrigerant is flowed to first flow path 200, remaining refrigerant flows to second
Road 300, when the humidity that humidity sensor 112 is detected is more than predetermined threshold value, such as the predetermined threshold value is 80%RH or other are any
Applicable humidity value, three-way control valve 103 at least gates second flow path 300, i.e., second flow path 300 is at least turned on, so that cold
Refrigerant in matchmaker's circulation loop partly or entirely flows through second flow path 300, so that the surface temperature of auxiliary refrigeration evaporator 109 is low
Vapor frosting on the surface of auxiliary refrigeration evaporator 109 in refrigerator room can be extremely guided, playing prevents vapor cold
Hide the effect of condensation on the internal face of compartment.It is understood that the cooling cycle system of refrigerator also includes being used to control each work(
Can component working controller 110, compressor 100, three-way control valve 103 and humidity sensor 112 etc. and controller
110 connections, are additionally provided with the temperature sensor 111 of the refrigerated storage temperature for detecting refrigerator room, the temperature sensor 111
Also it is connected with controller 110.In one example, realized by control condition of the temperature and ambient humidity of refrigerator room to refrigerator system
SAPMAC method system is controlled, when the temperature of refrigerator room is higher than design temperature and ambient humidity is more than predetermined threshold value, threeway
Control valve 103 is acted, and first flow path 200 is closed, and turns on second flow path 300, and refrigerant passes through auxiliary refrigeration evaporator 109, one
Aspect is freezed using auxiliary refrigeration evaporator 109 to refrigerator room, on the other hand using auxiliary refrigeration evaporator 109 to refrigerator
Room is dried, and prevents the vapor condensation in refrigerator room.Thus, by using the technical scheme of the present embodiment, either
The vapor that user carries out switch door operation to refrigerator and entered in refrigerator room, or the vapor that food is produced, can be
Frosting under the guiding of auxiliary refrigeration evaporator 109, anti-condensation effect substantially, and can guarantee that cold storage effect.
It is noted that when enabling auxiliary refrigeration evaporator 109, also entering to the working time of auxiliary refrigeration evaporator 109
Row timing, using the working time as the Rule of judgment for stopping using auxiliary refrigeration evaporator 109, such as the auxiliary work of refrigeration evaporator 109
When reaching 10 minutes as the time close compressor 100 or gating first flow path 200 and close second flow path 300, further subtract
The small influence to refrigeration.
In addition, the device for drying and filtering 102 that the cooling cycle system of refrigerator also includes being arranged in refrigerant circulation circuit is gentle
Liquid/gas separator 107, wherein device for drying and filtering 102 are located between the sys node of condenser 101 and first, gas-liquid separator 107
Between the second sys node and compressor 100, by the way that refrigerant is dried and gas-liquid separation, refrigerant is set more efficiently to transport
OK.
In alternate embodiments, the set location of humidity sensor 112 has multiple choices, such as humidity sensor 112
The outside of refrigerator is arranged on, the outside ambient humidity for detecting refrigerator is mainly consideration using this technical scheme and used
Because ambient humidity is big and easily occurs condensation in refrigerator room when family carries out switch door operation to refrigerator；Or, humidity sensor
Device 112 is arranged on the indoor of refrigerator, the indoor ambient humidity for detecting refrigerator, by judging the air in refrigerator room
Humidity come determine the need for use auxiliary refrigeration evaporator 109；Or, humidity sensor 112 is two, and one of them is used for
The outside ambient humidity of refrigerator is detected, another is used in the indoor ambient humidity for detecting refrigerator, two humidity sensors 112
Any one detection humidity be more than predetermined threshold value when, three-way control valve 103 at least gates second flow path 300, using this
Technical scheme, had both considered the influence of the outdoor air humidity of refrigerator, it is contemplated that the vapor that the indoor of refrigerator is produced
Influence, the probability for dew condensation phenomenon occur is reduced to a greater extent.
Referring to Fig. 2, in another embodiment, three-way control valve 103 is substituted by two two logical control valves, corresponding to Fig. 2 institutes
Show structure, this two two logical control valves are that two logical control valves 113 and two lead to control valve 114 respectively, wherein two logical control valves 113 are set
Put in first flow path 200 and positioned at the entrance point of first throttle device 104, two logical control valves 114 are arranged on second flow path 300
Go up and be located at the entrance point of second throttling device 108, be with the main distinction of above-described embodiment using two logical control valves 113 and
Two logical control valves 114 control first flow path 200 and second flow path 300 respectively, and the humidity that humidity sensor 112 is detected is more than default
During threshold value, two logical control valves 114 being located at least in second flow path 300 are opened, if now the temperature of refrigerator room is higher than setting
Temperature, then can also open two logical control valves 113 simultaneously, refrigerator is entered normal refrigerating state.It is noted that ought be simultaneously
, can also be to first in order to take into account refrigeration and anti-condensation effect when the logical control valves 113 and two of unlatching two lead to control valve 114
Stream 200 and the cold medium flux of second flow path 300 are allocated, such as the aperture of two logical control valves 113 is more than two logical control valves
114 aperture, or it is the adjustable proportioning valve of aperture that two logical control valves 113 and two, which lead to control valve 114, can be according to reality
Situation distributes the cold medium flux of first flow path 200 and second flow path 300, is prevented on the premise of integrally cooling effect is ensured
Dew condensation phenomenon.Wherein, it is preferably magnetic valve that two logical control valves 113 and two, which lead to control valve 114, and control mode is simple, dependable performance,
Can certainly be other any suitable electric control valves, to realize the control to refrigerant flow.
And for the specific set location of humidity sensor 112, it is referred to the detailed description of above-described embodiment.This implementation
In example, humidity sensor 112 is used for the outside ambient humidity for detecting refrigerator, or for detecting the indoor environmental wet of refrigerator
Degree；Or, humidity sensor 112 is two, and one of them is used for the outside ambient humidity for detecting refrigerator, and another is used for
When detecting that the humidity of any one detection in the indoor ambient humidity of refrigerator, two humidity sensors 112 is more than predetermined threshold value,
Two logical control valves 114 being located at least in second flow path 300 are opened, thus using the frosting of auxiliary refrigeration evaporator 109 act on come
Prevent dew condensation phenomenon.
In addition, the first throttle device 104 and second throttling device 108 in the various embodiments described above can elect capillary as,
Such as first throttle device 104 is the first capillary, and second throttling device 108 is the second capillary, and second capillary
Length is more than the length of the first capillary, and thus the throttling of the refrigerant of second flow path 300 is more abundant, so that vapor can be
The frosting directly on a surface of auxiliary refrigeration evaporator 109.In other embodiments, first throttle device 104 and second throttling device
108 can also be other any suitable restricting elements, such as electric expansion valve.
The technical scheme of the embodiment of the present invention, by increasing the auxiliary refrigeration for being used for guiding the vapor frosting in refrigerator room
Evaporator 109, when the humidity that humidity sensor 112 is detected is more than predetermined threshold value, the refrigerant stream in control refrigerant circulation circuit
Auxiliary refrigeration evaporator 109 is set to work through second flow path 300, so that vapor is directly on the surface of auxiliary refrigeration evaporator 109
Frosting, so as to prevent vapor condensation on the inwall of refrigerator room, and can also be during the work of auxiliary refrigeration evaporator 109
Refrigerator room provides cold, to maintain the low temperature environment of refrigerator room, so as to be conducive to food fresh-keeping.
The present invention also provides a kind of condensation prevention control method, cooling cycle system of refrigerator is controlled, to prevent water from steaming
There is dew condensation phenomenon in refrigerator room in gas, and referring to Fig. 3, the condensation prevention control method comprises the following steps：
In the step s 100, when whether the ambient parameter that cooling cycle system of refrigerator is detected meets preparatory condition, start
Compressor simultaneously at least gates second flow path.The structure with reference to shown in Fig. 1, second flow path 300, tool are gated when compressor 100 is run
Body can realize the selection of refrigerant flow direction by three-way control valve 103, therefore refrigerant flows through auxiliary refrigeration evaporator 109 and makes auxiliary refrigeration
Evaporator 109 is in running order, so as to guide the vapor in refrigerator room to be tied on the surface of auxiliary refrigeration evaporator 109
Frost.In alternate embodiments, ambient parameter includes ambient humidity, and the ambient humidity can be the environmental wet in refrigerator room
Ambient humidity outside degree or refrigerator room, is obtained by the detection of humidity sensor 112 for being arranged on correspondence position, when
Two humidity sensors 112 can also be so set, and one of humidity sensor 112 is arranged in refrigerator room, for detecting
Air humidity in refrigerator room；Another humidity sensor 112 is arranged on outside refrigerator room, for detecting outside refrigerator room
Air humidity, when the air humidity of wherein any one humidity sensor 112 detection is more than predetermined threshold value, starts compressor
100 and at least gate second flow path 300, if now the temperature of refrigerator room be higher than preset temperature, also gate first flow path
200, refrigerator room is freezed with reference to refrigeration evaporator 106 and auxiliary refrigeration evaporator 109, and auxiliary refrigeration evaporator 109 is same
When also act as anti-condensation effect.
It should be noted that during the above-mentioned Starting mode of compressor 100 is only cooling cycle system of refrigerator use
One of which special case situation, in order to maintain the constant of food fresh-keeping temperature, such as when the temperature of refrigerator room is more than preset temperature
When, start compressor 100 and gate first flow path 200, freezing compartment is freezed by refrigerating evaporator 105, and pass through
Refrigeration evaporator 106 freezes to refrigerator room, during this, can both keep the closed mode of second flow path 300,
Second flow path 300 can be gated.
Again in another optional embodiment, ambient parameter includes refrigerator room temperature and ambient humidity, works as refrigeration for refrigerator
When the refrigerator room temperature of circulatory system detection is more than preset temperature and ambient humidity and is more than predetermined threshold value, start compressor 100
And at least gate second flow path 300.Compared to above-described embodiment, it is contemplated that ambient humidity and refrigerator room temperature are to dew-point temperature
With the influence of actual condensation situation, control method is more accurate, vapor can be guided in time, anti-condensation effect becomes apparent from.
Referring to Fig. 4, the difference with above-described embodiment is that the condensation prevention control method of the present embodiment is after step sloo
Also include：
In step s 200, when the run time of second flow path is more than preset time, second flow path is closed.It is auxiliary enabling
During refrigeration evaporator 109, timing also is carried out to working time of auxiliary refrigeration evaporator 109, using the working time as stopping using
The Rule of judgment of auxiliary refrigeration evaporator 109, such as the auxiliary working time of refrigeration evaporator 109 closes second flow path when reaching 10 minutes
300, realize it is anti-condensation on the premise of, further reduce the influence to refrigeration.If in addition, closing second flow path
After 300, the temperature of refrigerator room, which is also not reaching to, is reduced to preset temperature, then the running status of compressor 100 is kept, to avoid
Refrigeration is impacted.
The present invention also provides a kind of refrigerator, in one embodiment, and the refrigerator includes limiting in casing (not shown), casing
Refrigerator room, naturally it is also possible to limit freezing compartment, so that the refrigerator possesses freezing and cold storage function, the leading flank of casing is opened
Open up and put, so that freezing compartment and refrigerator room have an opening respectively, wherein refrigerator room can be located at the upper of freezing compartment
Side.In addition, the refrigerator also includes the cooling cycle system of refrigerator described in any of the above-described technical scheme, pass through the refrigeration for refrigerator
The circulatory system realizes heat exchange, meets food preservation requirement, while auxiliary refrigeration evaporator 109 is located in refrigerator room, it is also available
Auxiliary refrigeration evaporator 109 guides vapor frosting in its surface, prevents occurring dew condensation phenomenon in refrigerator room.It may be appreciated
It is that the refrigerator of the present embodiment also includes being pivotally disposed on casing with the door body for the leading flank for opening or closing casing.
In a particular embodiment, using spatial form general arrangement as the refrigerator room of cuboid as an example, the refrigerator
Room includes bottom plate, top plate, left side plate, postnotum and the front side board being made up of door body, and auxiliary refrigeration evaporator 109 can be set
On the postnotum of refrigerator room, and auxiliary refrigeration evaporator 109 is located at the top of refrigeration evaporator 106.When auxiliary refrigeration evaporator
When 109 work by way of frosting to collect vapor, also need to consider the problem of defrosting water is discharged, for auxiliary refrigeration evaporator
109 are arranged on the situation on the postnotum of refrigerator room, and the change for accepting auxiliary refrigeration evaporator 109 is provided with the postnotum
The rhone of white water, auxiliary refrigeration evaporator 109 is not when working or defrosting during the shutdown of compressor 100, and the defrosting water of generation converges
Collection is discharged outside refrigerator to rhone.And in another embodiment, auxiliary refrigeration evaporator 109 is arranged on the top plate of refrigerator room
On, the refrigerator also includes being arranged on defrosting water of the lower section of auxiliary refrigeration evaporator 109 for accepting auxiliary refrigeration evaporator 109
Drip tray, the drip tray keeps certain intervals with auxiliary refrigeration evaporator 109, so as to prevent vapor condensation on drip tray.By
This, by the way that auxiliary refrigeration evaporator 109 is arranged on the postnotum of refrigerator room or top plate, so as to be conducive to guiding vapor to exist
Frosting on auxiliary refrigeration evaporator 109, with more preferable anti-condensation effect.
It should be appreciated that this refrigerator embodiment includes whole technical sides of above-mentioned cooling cycle system of refrigerator whole embodiments
Case, the technique effect reached is also identical, will not be repeated here.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (11)
1. a kind of cooling cycle system of refrigerator, including head and the tail be sequentially connected with constitute the compressor of refrigerant circulation circuit, condenser,
First throttle device, refrigeration evaporator and refrigerating evaporator, it is characterised in that the first throttle device and freezing and evaporating
Device, refrigeration evaporator are sequentially connected using the refrigerant flow of composition as first flow path, and the cooling cycle system of refrigerator also includes wet
Degree sensor, three-way control valve, it is sequentially connected second throttling device and auxiliary refrigeration evaporator to constitute second flow path；It is described cold
The output end for hiding evaporator is connected with the output end of the auxiliary refrigeration evaporator；
The first flow path is arranged in parallel with the second flow path and is formed be sequentially distributed along refrigerant flow direction first
Sys node and the second sys node, the three-way control valve are arranged at first sys node, the humidity sensor
When the humidity of detection is more than predetermined threshold value, the three-way control valve at least gates the second flow path, so that refrigerant circulation is returned
Refrigerant in road partly or entirely flows through second flow path.
2. cooling cycle system of refrigerator as claimed in claim 1, it is characterised in that the humidity sensor is used to detect described
The outside ambient humidity of refrigerator, or for detecting the indoor ambient humidity of the refrigerator；Or, the humidity sensor
Device is two, and one of them is used for the outside ambient humidity for detecting the refrigerator, and another is used for the room for detecting the refrigerator
When the humidity of any one detection in inside environment humidity, humidity sensor described in two is more than predetermined threshold value, the threeway control
Valve processed at least gates the second flow path.
3. cooling cycle system of refrigerator as claimed in claim 1, it is characterised in that the three-way control valve is by two two logical controls
Valve processed is substituted, and one of them described two logical control valve is arranged in first flow path and positioned at the import of the first throttle device
End, another described two logical control valve is arranged in the second flow path and positioned at the entrance point of the second throttling device, institute
When the humidity for stating humidity sensor detection is more than predetermined threshold value, two logical control valves being located at least in the second flow path are opened.
4. cooling cycle system of refrigerator as claimed in claim 3, it is characterised in that the humidity sensor is used to detect described
The outside ambient humidity of refrigerator, or for detecting the indoor ambient humidity of the refrigerator；Or, the humidity sensor
For two, one of them is used for the outside ambient humidity for detecting the refrigerator, and another is used for the interior for detecting the refrigerator
When the humidity of any one detection in side ambient humidity, humidity sensor described in two is more than predetermined threshold value, it is located at least in described
Two logical control valves in second flow path are opened.
5. the cooling cycle system of refrigerator as any one of Claims 1-4, it is characterised in that the first throttle dress
The first capillary is set to, the second throttling device is the second capillary, and the length of second capillary is more than described first
The length of capillary.
6. the cooling cycle system of refrigerator as any one of Claims 1-4, it is characterised in that the refrigeration for refrigerator is followed
Loop system also includes the device for drying and filtering and gas-liquid separator being arranged in the refrigerant circulation circuit, the device for drying and filtering position
Between the condenser and first sys node, the gas-liquid separator is located at second sys node and the pressure
Between contracting machine.
7. a kind of condensation prevention control method, it is characterised in that to the refrigerator refrigerating circulation any one of claim 1 to 6
System is controlled, and the condensation prevention control method comprises the following steps：
When the ambient parameter that the cooling cycle system of refrigerator is detected meets preparatory condition, start compressor and at least gate the
Two streams.
8. condensation prevention control method as claimed in claim 7, it is characterised in that the ambient parameter includes ambient humidity, when
When the ambient humidity of the cooling cycle system of refrigerator detection is more than predetermined threshold value, starts compressor and at least gate second
Road；Or, the ambient parameter include refrigerator room temperature and ambient humidity, when the cooling cycle system of refrigerator detect it is cold
When hiding compartment temperature and being more than preset temperature and ambient humidity and be more than predetermined threshold value, start compressor and simultaneously at least gate second flow path.
9. condensation prevention control method as claimed in claim 7 or 8, it is characterised in that select in the startup compressor and at least
Also include after the step of logical second flow path：
When the run time of second flow path is more than preset time, second flow path is closed.
10. limit refrigerator room in a kind of refrigerator, including casing, the casing, it is characterised in that the refrigerator also includes power
Profit requires the cooling cycle system of refrigerator any one of 1 to 6, and the auxiliary refrigeration evaporator is located in the refrigerator room.
11. refrigerator as claimed in claim 10, it is characterised in that the auxiliary refrigeration evaporator is set after the refrigerator room
On backboard, and the auxiliary refrigeration evaporator is provided with the top of the refrigeration evaporator, the postnotum for holding
Connect the rhone of the defrosting water of the auxiliary refrigeration evaporator；Or, the auxiliary refrigeration evaporator is arranged on the refrigerator room
On top plate, the refrigerator also includes being arranged on the lower section of the auxiliary refrigeration evaporator accepting the auxiliary refrigeration evaporator
The drip tray of defrosting water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510296614.3A CN104879941B (en) | 2015-06-01 | 2015-06-01 | Cooling cycle system of refrigerator, condensation prevention control method and refrigerator |
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| CN201510296614.3A CN104879941B (en) | 2015-06-01 | 2015-06-01 | Cooling cycle system of refrigerator, condensation prevention control method and refrigerator |
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| CN104879941B true CN104879941B (en) | 2017-08-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679215A (en) * | 2016-12-28 | 2017-05-17 | 青岛海尔股份有限公司 | Refrigerator energy-saving refrigerating system, refrigerator with system and running method of refrigerator |
| CN107421206B (en) * | 2017-06-30 | 2019-10-01 | 青岛海尔特种电冰箱有限公司 | Refrigerating device and its control method |
| CN107606848B (en) * | 2017-09-19 | 2019-07-26 | 合肥华凌股份有限公司 | The condensation-preventing device and method of refrigerator and refrigerator |
| CN111148954B (en) * | 2018-09-04 | 2022-08-16 | 广东美的白色家电技术创新中心有限公司 | Control method and device of food storage equipment and storage medium |
| CN110094922B (en) * | 2019-05-17 | 2021-07-13 | 广州美的华凌冰箱有限公司 | Refrigeration device |
| CN115751823A (en) * | 2022-12-22 | 2023-03-07 | 珠海格力电器股份有限公司 | Anti-condensation system of air return pipe and refrigerator |
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| CN104879941A (en) | 2015-09-02 |
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