CN104879941A - Refrigerator refrigeration circulating system, condensation prevention control method and refrigerator - Google Patents
Refrigerator refrigeration circulating system, condensation prevention control method and refrigerator Download PDFInfo
- Publication number
- CN104879941A CN104879941A CN201510296614.3A CN201510296614A CN104879941A CN 104879941 A CN104879941 A CN 104879941A CN 201510296614 A CN201510296614 A CN 201510296614A CN 104879941 A CN104879941 A CN 104879941A
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- stream
- refrigeration evaporator
- humidity
- cycle system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 101
- 238000009833 condensation 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 20
- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims description 42
- 238000010257 thawing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001143 conditioned effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007710 freezing Methods 0.000 description 9
- 230000008014 freezing Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 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
- 238000009920 food preservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003116 impacting effect Effects 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
- 238000000926 separation method Methods 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
- 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
-
- 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 refrigerator refrigeration circulating system. The refrigerator refrigeration circulating system comprises a compressor, a condenser, a first throttling device and a refrigeration evaporator which are sequentially connected end to end to form a refrigerant circulating loop, wherein a refrigerant flow passage in which the first throttling device and the refrigeration evaporator are located is used as a first flow passage. The refrigerator refrigeration circulating system further comprises a humidity sensor, a three-way control valve, and a second throttling device and an auxiliary refrigeration evaporator which are sequentially connected to form a second flow passage, wherein the first flow passage and the second flow passage are arranged in parallel to form a first parallel node and a second parallel node which are sequentially distributed along a refrigerant flow direction, the three-way control valve is arranged at the first parallel node, and when humidity detected by the humidity sensor is higher than a preset threshold, the three-way valve at least selectively opens the second flow passage. The invention further discloses a condensation prevention control method and a refrigerator. By using the frosting effect of the auxiliary refrigeration evaporator, not only can the condensation phenomenon be reduced, but also the refrigeration effect of the refrigeration chamber can be guaranteed.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate 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, after steam in environment enters refrigerator compartment, steam rises to the top of refrigeration chamber courage because being subject to the impact of temperature difference and dew condensation phenomenon occurs, condensation not only can dust in absorbed air and bacterium, and interior metal parts rust corrosion can be caused, plastic components mildews smelly etc., is unfavorable for food fresh-keeping.
At present mainly through arranging dew eliminating tube and electric heating assembly to prevent condensation, but high-temperature heating can impact the refrigeration of refrigerator compartment, causes thermic load to increase, and can cause temperature fluctuation simultaneously, be unfavorable for food fresh-keeping.
Summary of the invention
Main purpose of the present invention is to provide a kind of cooling cycle system of refrigerator, is intended to solve the energy consumption that existing anti-condensation mode can increase refrigerator, is unfavorable for the technical problem of food fresh-keeping simultaneously.
For achieving the above object, the invention provides a kind of cooling cycle system of refrigerator, comprise the compressor that head and the tail connect to form refrigerant circulation circuit successively, condenser, first throttle device and refrigeration evaporator, with described first throttle device and refrigeration evaporator place refrigerant flow for first flow path, described cooling cycle system of refrigerator also comprises humidity sensor, three-way control valve, connect successively to form the second throttling arrangement of the second stream and auxiliary refrigeration evaporator, described first flow path and described second stream are arranged in parallel and are formed with the first sys node and the second sys node that distribute successively along refrigerant flow direction, described three-way control valve is arranged on described first sys node place, when the humidity that described humidity sensor detects is greater than predetermined threshold value, described three-way control valve is the second stream described in gating at least.
Preferably, described humidity sensor for detecting the outside ambient humidity of described refrigerator, or for detecting the indoor ambient humidity of described refrigerator; Or, described humidity sensor is two, one of them is for detecting the outside ambient humidity of described refrigerator, another is for detecting the indoor ambient humidity of described refrigerator, when any one humidity detected in humidity sensor described in two is greater than predetermined threshold value, described three-way control valve is the second stream described in gating at least.
Preferably, described three-way control valve is substituted by two two logical control valves, two logical control valves described in one of them to be arranged in first flow path and to be positioned at the entrance point of described first throttle device, two logical control valves described in another to be arranged on described second stream and to be positioned at the entrance point of described second throttling arrangement, when the humidity that described humidity sensor detects is greater than predetermined threshold value, is at least positioned at the logical control valve of two on described second stream and opens.
Preferably, described humidity sensor for detecting the outside ambient humidity of described refrigerator, or for detecting the indoor ambient humidity of described refrigerator; Or, described humidity sensor is two, one of them is for detecting the outside ambient humidity of described refrigerator, another is for detecting the indoor ambient humidity of described refrigerator, when any one humidity detected in humidity sensor described in two is greater than predetermined threshold value, is at least positioned at the logical control valve of two on described second stream and opens.
Preferably, described first throttle device is the first capillary, and described second throttling arrangement is the second capillary, and the length of described second capillary is greater than the length of described first capillary.
Preferably, described cooling cycle system of refrigerator also comprises and is arranged on device for drying and filtering in described refrigerant circulation circuit and gas-liquid separator, described device for drying and filtering is between described condenser and described first sys node, and described gas-liquid separator is between described second sys node and described compressor.
In addition, for achieving the above object, the present invention also provides a kind of condensation prevention control method, cooling cycle system of refrigerator described in above-mentioned any one technical scheme is controlled, described condensation prevention control method comprises the following steps: when the ambient parameter that described cooling cycle system of refrigerator detects meets pre-conditioned, starts compressor and at least gating second stream.
Preferably, described ambient parameter comprises ambient humidity, when the ambient humidity that described cooling cycle system of refrigerator detects is greater than predetermined threshold value, starts compressor and at least gating second stream; Or described ambient parameter comprises refrigerator room temperature and ambient humidity, when the refrigerator room temperature that described cooling cycle system of refrigerator detects is greater than preset temperature and ambient humidity is greater than predetermined threshold value, start compressor and at least gating second stream.
Preferably, also to comprise after the step of at least gating second stream at described startup compressor: when being greater than Preset Time the running time of the second stream, close the second stream.
In addition, for achieving the above object, the present invention also provides a kind of refrigerator, comprise casing, limit refrigerator room in described casing, described refrigerator also comprises the cooling cycle system of refrigerator described in above-mentioned any one technical scheme, and it is indoor that described auxiliary refrigeration evaporator is positioned at described refrigerator.
Preferably, described auxiliary refrigeration evaporator is arranged on the postnotum of described refrigerator room, and described auxiliary refrigeration evaporator is positioned at the top of described refrigeration evaporator, described postnotum is provided with the rhone of the defrosting water for accepting described auxiliary refrigeration evaporator; Or described auxiliary refrigeration evaporator is arranged on the top board of described refrigerator room, described refrigerator also comprises the below that is arranged on described auxiliary refrigeration evaporator for the drip tray of defrosting water accepting described auxiliary refrigeration evaporator.
A kind of cooling cycle system of refrigerator provided by the present invention, by increasing the auxiliary refrigeration evaporator of the steam frosting for guiding refrigerator indoor, when the humidity that humidity sensor detects is greater than predetermined threshold value, the refrigerant controlled in refrigerant circulation circuit flows through the second stream and makes auxiliary refrigeration evaporator work, to make steam directly frosting on the surface of auxiliary refrigeration evaporator, thus prevent steam condensation on the inwall of refrigerator room, and cold can also be provided for refrigerator room during auxiliary refrigeration evaporator work, to maintain the low temperature environment of refrigerator room, thus be conducive to food fresh-keeping.
Accompanying drawing explanation
Fig. 1 is the stream schematic diagram of cooling cycle system of refrigerator one embodiment 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 condensation prevention control method one embodiment 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 of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further see accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of cooling cycle system of refrigerator, see Fig. 1, in one embodiment, this cooling cycle system of refrigerator comprises the compressor 100 that head and the tail connect to form refrigerant circulation circuit successively, condenser 101, first throttle device 104 and refrigeration evaporator 106, in addition, for the cooling cycle system of refrigerator being configured with freezing function, it also comprises refrigerating evaporator 105, this refrigerating evaporator 105 is between first throttle device 104 and refrigeration evaporator 106, wherein refrigerating evaporator 105 manufactures freezing conditions for closing chamber to one, such as form the freezing compartment that design temperature is-26 DEG C ~-4 DEG C, and refrigeration evaporator 106 is for manufacturing refrigerated condition to another closed chamber, such as form the refrigerator room that design temperature is 0 ~ 10 DEG C, and refrigerating evaporator 105 can be identical with the refrigeration modes of refrigeration evaporator 106 when practical application, also can be different, such as refrigerating evaporator 105 adopts direct refrigeration-type, namely refrigerating evaporator 105 is positioned at freezing compartment, and refrigeration evaporator 106 adopts indirect refrigeration formula, namely refrigeration evaporator 106 is positioned at refrigerator outdoor, and carry out heat exchange by the locular wall of refrigerator room.
As shown in Figure 1, with described first throttle device 104, refrigerating evaporator 105 and refrigeration evaporator 106 place refrigerant flow for first flow path 200.In addition, this cooling cycle system of refrigerator also comprises humidity sensor 112, three-way control valve 103, the second throttling arrangement 108 connecting to form the second stream 300 successively and auxiliary refrigeration evaporator 109, wherein auxiliary refrigeration evaporator 109 is corresponding with refrigeration evaporator 106 is arranged, such as auxiliary refrigeration evaporator 109 is positioned at refrigerator indoor, the steam of auxiliary refrigeration evaporator 109 pairs of refrigerator indoor is utilized to guide, and make steam frosting on the surface of auxiliary refrigeration evaporator 109, thus prevent the phenomenon internal face of refrigerator room occurring condensation.Wherein, the three-way control valve 103 of the present embodiment can be three-way magnetic valve, also can be electronically controlled proportional valve, can select flexibly when practical application.
Particularly, first flow path 200 and the second stream 300 are arranged in parallel and are formed with the first sys node and the second sys node that distribute successively along refrigerant flow direction, three-way control valve 103 is arranged on the first sys node place, therefore the flow direction of refrigerant at the first sys node place is controlled by this three-way control valve 103, refrigerant is such as made all to flow to first flow path 200 or the second stream 300, or refrigerant is shunted, a part of refrigerant is made to flow to first flow path 200, all the other refrigerants flow to the second stream 300, when the humidity that humidity sensor 112 detects is greater than predetermined threshold value, such as this predetermined threshold value is 80%RH or other any suitable humidity values, three-way control valve 103 is gating second stream 300 at least, i.e. at least conducting second stream 300, thus make the refrigerant in refrigerant circulation circuit partly or entirely flow through the second stream 300, thus the surface temperature of auxiliary refrigeration evaporator 109 is low to moderate can guide the frosting on the surface of auxiliary refrigeration evaporator 109 of the steam of refrigerator indoor, play the effect preventing steam condensation on the internal face of refrigerator room.Be understandable that, this cooling cycle system of refrigerator also comprises the controller 110 for controlling each functional part work, such as compressor 100, three-way control valve 103 and humidity sensor 112 etc. are connected with controller 110, also be provided with the temperature sensor 111 of the refrigerated storage temperature for detecting refrigerator room in addition, this temperature sensor 111 is also connected with controller 110.In one example, with the temperature of refrigerator room and ambient humidity for controlled condition realizes controlling cooling cycle system of refrigerator, when the temperature of refrigerator room higher than design temperature and ambient humidity is greater than predetermined threshold value time, three-way control valve 103 action, first flow path 200 is closed, and conducting second stream 300, refrigerant is by auxiliary refrigeration evaporator 109, auxiliary refrigeration evaporator 109 pairs of refrigerator rooms are utilized to freeze on the one hand, utilize auxiliary refrigeration evaporator 109 pairs of refrigerator rooms to carry out drying on the other hand, prevent the steam condensation of refrigerator indoor.Thus, by using the technical scheme of the present embodiment, no matter be that user carries out switch gate operation to refrigerator and enters the steam of refrigerator indoor, or the steam that food produces, all can frosting under the guiding of auxiliary refrigeration evaporator 109, anti-condensation effect is obvious, and can ensure cold storage effect.
It is worth mentioning that, when enabling auxiliary refrigeration evaporator 109, also timing is carried out to the working time of auxiliary refrigeration evaporator 109, using the working time as the Rule of judgment stopping using auxiliary refrigeration evaporator 109, close compressor 100 or gating first flow path 200 when such as auxiliary refrigeration evaporator 109 working time reaches 10 minutes and close the second stream 300, further reduce the impact on refrigeration.
In addition, this cooling cycle system of refrigerator also comprises and is arranged on device for drying and filtering 102 in refrigerant circulation circuit and gas-liquid separator 107, wherein device for drying and filtering 102 is between condenser 101 and the first sys node, gas-liquid separator 107 is between the second sys node and compressor 100, by carrying out drying and gas-liquid separation to refrigerant, refrigerant is more efficiently run.
In alternate embodiments, the setting position of humidity sensor 112 has multiple choices, such as humidity sensor 112 is arranged on the outside of refrigerator, for detecting the outside ambient humidity of refrigerator, when adopting this technical scheme mainly to consider that user carries out switch gate operation to refrigerator, easily there is condensation in refrigerator indoor because ambient humidity is large; Or humidity sensor 112 is arranged on the indoor of refrigerator, for detecting the indoor ambient humidity of refrigerator, by judging that the air humidity of refrigerator indoor determines whether to need to use auxiliary refrigeration evaporator 109; Or, humidity sensor 112 is two, one of them is for detecting the outside ambient humidity of refrigerator, another is for detecting the indoor ambient humidity of refrigerator, when any one humidity detected in two humidity sensors 112 is greater than predetermined threshold value, three-way control valve 103 is gating second stream 300 at least, adopt this technical scheme, both the impact of the outdoor air humidity of refrigerator had been considered, the impact of the steam that the indoor considering again refrigerator produces, is reducing the probability occurring dew condensation phenomenon to a greater extent.
See Fig. 2, in another embodiment, three-way control valve 103 is substituted by two two logical control valves, corresponding to structure shown in Fig. 2, these two two logical control valves are two logical control valve 113 and two logical control valves 114 respectively, wherein two logical control valves 113 to be arranged in first flow path 200 and to be positioned at the entrance point of first throttle device 104, two logical control valves 114 to be arranged on the second stream 300 and to be positioned at the entrance point of the second throttling arrangement 108, be that control valve 113 is led in use two and two logical control valves 114 control first flow path 200 and the second stream 300 respectively with the main distinction of above-described embodiment, when the humidity that humidity sensor 112 detects is greater than predetermined threshold value, at least be positioned at the logical control valve 114 of two on the second stream 300 to open, if now the temperature of refrigerator room is higher than design temperature, then also can open two logical control valves 113 simultaneously, refrigerator is made to enter normal refrigerating state.It is worth mentioning that, when to open two logical control valves 113 and two logical control valves 114 simultaneously, in order to take into account refrigeration and anti-condensation effect, can also distribute the cold medium flux of first flow path 200 and the second stream 300, the aperture of such as two logical control valves 113 is greater than the aperture of two logical control valves 114, or two logical control valve 113 and two logical control valves 114 be the adjustable proportioning valve of aperture, the cold medium flux of first flow path 200 and the second stream 300 can be distributed according to actual conditions, under the prerequisite ensureing integrally cooling effect, prevent dew condensation phenomenon.Wherein, two logical control valves 113 and two logical control valves 114 are preferably magnetic valve, and control mode is simple, and dependable performance can certainly be other any suitable electric control valves, to realize the control to refrigerant flow.
And for the concrete setting position of humidity sensor 112, can with reference to the detailed description of above-described embodiment.In the present embodiment, humidity sensor 112 for detecting the outside ambient humidity of refrigerator, or for detecting the indoor ambient humidity of refrigerator; Or, humidity sensor 112 is two, one of them is for detecting the outside ambient humidity of refrigerator, another is for detecting the indoor ambient humidity of refrigerator, when any one humidity detected in two humidity sensors 112 is greater than predetermined threshold value, at least be positioned at the logical control valve 114 of two on the second stream 300 to open, thus utilize the frosting of auxiliary refrigeration evaporator 109 to be used for preventing dew condensation phenomenon.
In addition, first throttle device 104 in the various embodiments described above and the second throttling arrangement 108 all can elect capillary as, such as first throttle device 104 is the first capillary, second throttling arrangement 108 is the second capillary, and the length of the second capillary is greater than the length of the first capillary, the throttling of the refrigerant of the second stream 300 is more abundant thus, thus enables steam direct frosting on the surface of auxiliary refrigeration evaporator 109.In other embodiments, first throttle device 104 and the second throttling arrangement 108 can also be other any suitable restricting element, such as electric expansion valves.
The technical scheme of the embodiment of the present invention, by increasing the auxiliary refrigeration evaporator 109 of the steam frosting for guiding refrigerator indoor, when the humidity that humidity sensor 112 detects is greater than predetermined threshold value, the refrigerant controlled in refrigerant circulation circuit flows through the second stream 300 and auxiliary refrigeration evaporator 109 is worked, to make steam directly frosting on the surface of auxiliary refrigeration evaporator 109, thus prevent steam condensation on the inwall of refrigerator room, and cold can also be provided for refrigerator room when auxiliary refrigeration evaporator 109 works, to maintain the low temperature environment of refrigerator room, thus be conducive to food fresh-keeping.
The present invention also provides a kind of condensation prevention control method, controls cooling cycle system of refrigerator, and to prevent water steam from occurring dew condensation phenomenon in refrigerator indoor, see Fig. 3, this condensation prevention control method comprises the following steps:
In the step s 100, when whether the ambient parameter that cooling cycle system of refrigerator detects meets pre-conditioned, compressor is started and at least gating second stream.Structure shown in composition graphs 1, gating second stream 300 when compressor 100 runs, the selection of the refrigerant flow direction is specifically realized by three-way control valve 103, therefore refrigerant flows through auxiliary refrigeration evaporator 109 and makes auxiliary refrigeration evaporator 109 in running order, thus guides steam frosting on the surface of auxiliary refrigeration evaporator 109 of refrigerator indoor.In alternate embodiments, ambient parameter comprises ambient humidity, and this ambient humidity can be the ambient humidity of refrigerator indoor, also can be the ambient humidity of refrigerator outdoor, detected by the humidity sensor 112 being arranged on correspondence position and obtain, can certainly arrange two humidity sensors 112, one of them humidity sensor 112 is arranged on refrigerator indoor, for detecting the air humidity of refrigerator indoor; Another humidity sensor 112 is arranged on refrigerator outdoor, for detecting the air humidity of refrigerator outdoor, when the air humidity that wherein any one humidity sensor 112 detects is greater than predetermined threshold value, start compressor 100 and at least gating second stream 300, if now the temperature of refrigerator room is higher than preset temperature, then go back gating first flow path 200, freeze in conjunction with refrigeration evaporator 106 and auxiliary refrigeration evaporator 109 pairs of refrigerator rooms, and auxiliary refrigeration evaporator 109 also plays anti-condensation effect simultaneously.
It should be noted that, the above-mentioned Starting mode of compressor 100 is only the wherein a kind of special case situation in cooling cycle system of refrigerator use procedure, in order to maintain the constant of food fresh-keeping temperature, such as when the temperature of refrigerator room is greater than preset temperature, start compressor 100 and gating first flow path 200, by refrigerating evaporator, 105 pairs of freezing compartment freeze, and freezed by refrigeration evaporator 106 pairs of refrigerator rooms, in this process, both the closed condition of the second stream 300 can have been kept, also can gating second stream 300.
Again in another Alternate embodiments, ambient parameter comprises refrigerator room temperature and ambient humidity, when the refrigerator room temperature that cooling cycle system of refrigerator detects is greater than preset temperature and ambient humidity is greater than predetermined threshold value, start compressor 100 and at least gating second stream 300.Compared to above-described embodiment, consider the impact on dew-point temperature and actual condensation situation of ambient humidity and refrigerator room temperature, control method is more accurate, and can guide steam in time, anti-condensation effect is more obvious.
See Fig. 4, be with the difference of above-described embodiment, the condensation prevention control method of the present embodiment also comprises after step sloo:
In step s 200, when being greater than Preset Time the running time of the second stream, the second stream is closed.When enabling auxiliary refrigeration evaporator 109, also timing is carried out to the working time of auxiliary refrigeration evaporator 109, using the working time as the Rule of judgment stopping using auxiliary refrigeration evaporator 109, the second stream 300 is closed when such as auxiliary refrigeration evaporator 109 working time reaches 10 minutes, realizing, under anti-condensation prerequisite, further reducing the impact on refrigeration.In addition, if after closedown second stream 300, the temperature of refrigerator room does not also reach and is reduced to preset temperature, then keep the running status of compressor 100, to avoid impacting refrigeration.
The present invention also provides a kind of refrigerator, in one embodiment, this refrigerator comprises casing (not shown), refrigerator room is limited in casing, can certainly limit freezing compartment, to make this refrigerator possess freezing and cold storage function, the leading flank of casing opens wide and arranges, to make freezing compartment and refrigerator room have an opening respectively, wherein refrigerator room can be positioned at the top of freezing compartment.In addition, this refrigerator also comprises the cooling cycle system of refrigerator described in above-mentioned any one technical scheme, heat exchange is realized by this cooling cycle system of refrigerator, meet food preservation requirement, auxiliary refrigeration evaporator 109 is positioned at refrigerator indoor simultaneously, auxiliary refrigeration evaporator 109 also can be utilized to guide steam frosting in its surface, prevent refrigerator indoor from occurring dew condensation phenomenon.Be understandable that, the refrigerator of the present embodiment also comprises and being arranged on pivotly on casing to open or close the door body of the leading flank of casing.
In a particular embodiment, the refrigerator room being cuboid with spatial form general arrangement exemplarily, the front side board that this refrigerator room comprises base plate, top board, left side plate, postnotum and is made up of door body, auxiliary refrigeration evaporator 109 can be arranged on the postnotum of refrigerator room, and auxiliary refrigeration evaporator 109 is positioned at the top of refrigeration evaporator 106.When auxiliary refrigeration evaporator 109 works to collect steam by the mode of frosting; also need the problem considering defrosting water discharge; auxiliary refrigeration evaporator 109 is arranged on to the situation on the postnotum of refrigerator room; this postnotum is provided with the rhone of the defrosting water for accepting auxiliary refrigeration evaporator 109; auxiliary refrigeration evaporator 109 is not when working or defrosting between compressor 100 down period, and the defrosting water of generation is collected to rhone and discharges outside refrigerator.And in another embodiment, auxiliary refrigeration evaporator 109 is arranged on the top board of refrigerator room, this refrigerator also comprises the below that is arranged on auxiliary refrigeration evaporator 109 for the drip tray of defrosting water accepting auxiliary refrigeration evaporator 109, this drip tray and auxiliary refrigeration evaporator 109 keep certain intervals, thus prevent steam condensation on drip tray.Thus, by postnotum that auxiliary refrigeration evaporator 109 is arranged on refrigerator room or top board, thus be conducive to guiding steam frosting on auxiliary refrigeration evaporator 109, there is better anti-condensation effect.
Should be appreciated that this refrigerator embodiment comprises whole technical schemes of the whole embodiment of above-mentioned cooling cycle system of refrigerator, the technique effect reached is also identical, does not repeat them here.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (11)
1. a cooling cycle system of refrigerator, comprise the compressor that head and the tail connect to form refrigerant circulation circuit successively, condenser, first throttle device and refrigeration evaporator, it is characterized in that, with described first throttle device and refrigeration evaporator place refrigerant flow for first flow path, described cooling cycle system of refrigerator also comprises humidity sensor, three-way control valve, connect successively to form the second throttling arrangement of the second stream and auxiliary refrigeration evaporator, described first flow path and described second stream are arranged in parallel and are formed with the first sys node and the second sys node that distribute successively along refrigerant flow direction, described three-way control valve is arranged on described first sys node place, when the humidity that described humidity sensor detects is greater than predetermined threshold value, described three-way control valve is the second stream described in gating at least.
2. cooling cycle system of refrigerator as claimed in claim 1, is characterized in that, described humidity sensor for detecting the outside ambient humidity of described refrigerator, or for detecting the indoor ambient humidity of described refrigerator; Or, described humidity sensor is two, one of them is for detecting the outside ambient humidity of described refrigerator, another is for detecting the indoor ambient humidity of described refrigerator, when any one humidity detected in humidity sensor described in two is greater than predetermined threshold value, described three-way control valve is the second stream described in gating at least.
3. cooling cycle system of refrigerator as claimed in claim 1, it is characterized in that, described three-way control valve is substituted by two two logical control valves, two logical control valves described in one of them to be arranged in first flow path and to be positioned at the entrance point of described first throttle device, two logical control valves described in another to be arranged on described second stream and to be positioned at the entrance point of described second throttling arrangement, when the humidity that described humidity sensor detects is greater than predetermined threshold value, is at least positioned at the logical control valve of two on described second stream and opens.
4. cooling cycle system of refrigerator as claimed in claim 3, is characterized in that, described humidity sensor for detecting the outside ambient humidity of described refrigerator, or for detecting the indoor ambient humidity of described refrigerator; Or, described humidity sensor is two, one of them is for detecting the outside ambient humidity of described refrigerator, another is for detecting the indoor ambient humidity of described refrigerator, when any one humidity detected in humidity sensor described in two is greater than predetermined threshold value, is at least positioned at the logical control valve of two on described second stream and opens.
5. the cooling cycle system of refrigerator according to any one of Claims 1-4, it is characterized in that, described first throttle device is the first capillary, and described second throttling arrangement is the second capillary, and the length of described second capillary is greater than the length of described first capillary.
6. the cooling cycle system of refrigerator according to any one of Claims 1-4, it is characterized in that, described cooling cycle system of refrigerator also comprises and is arranged on device for drying and filtering in described refrigerant circulation circuit and gas-liquid separator, described device for drying and filtering is between described condenser and described first sys node, and described gas-liquid separator is between described second sys node and described compressor.
7. a condensation prevention control method, is characterized in that, controls the cooling cycle system of refrigerator according to any one of claim 1 to 6, and described condensation prevention control method comprises the following steps:
When the ambient parameter that described cooling cycle system of refrigerator detects meets pre-conditioned, start compressor and at least gating second stream.
8. condensation prevention control method as claimed in claim 7, it is characterized in that, described ambient parameter comprises ambient humidity, when the ambient humidity that described cooling cycle system of refrigerator detects is greater than predetermined threshold value, starts compressor and at least gating second stream; Or described ambient parameter comprises refrigerator room temperature and ambient humidity, when the refrigerator room temperature that described cooling cycle system of refrigerator detects is greater than preset temperature and ambient humidity is greater than predetermined threshold value, start compressor and at least gating second stream.
9. as claimed in claim 7 or 8 condensation prevention control method, is characterized in that, also comprises after the step of at described startup compressor and at least gating second stream:
When being greater than Preset Time the running time of the second stream, close the second stream.
10. a refrigerator, comprises casing, limits refrigerator room, it is characterized in that in described casing, and described refrigerator also comprises the cooling cycle system of refrigerator according to any one of claim 1 to 6, and it is indoor that described auxiliary refrigeration evaporator is positioned at described refrigerator.
11. refrigerators as claimed in claim 10, it is characterized in that, described auxiliary refrigeration evaporator arranges on the postnotum of described refrigerator room, and described auxiliary refrigeration evaporator is positioned at the top of described refrigeration evaporator, described postnotum is provided with the rhone of the defrosting water for accepting described auxiliary refrigeration evaporator; Or described auxiliary refrigeration evaporator is arranged on the top board of described refrigerator room, described refrigerator also comprises the below that is arranged on described auxiliary refrigeration evaporator for the drip tray of defrosting water accepting described auxiliary refrigeration evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296614.3A CN104879941B (en) | 2015-06-01 | 2015-06-01 | Cooling cycle system of refrigerator, condensation prevention control method and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296614.3A CN104879941B (en) | 2015-06-01 | 2015-06-01 | Cooling cycle system of refrigerator, condensation prevention control method and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879941A true CN104879941A (en) | 2015-09-02 |
| CN104879941B CN104879941B (en) | 2017-08-15 |
Family
ID=53947537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296614.3A Active CN104879941B (en) | 2015-06-01 | 2015-06-01 | Cooling cycle system of refrigerator, condensation prevention control method and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879941B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421206A (en) * | 2017-06-30 | 2017-12-01 | 青岛海尔特种电冰箱有限公司 | Refrigerating device and its control method |
| CN107606848A (en) * | 2017-09-19 | 2018-01-19 | 合肥华凌股份有限公司 | The condensation-preventing device and method of refrigerator and refrigerator |
| WO2018121593A1 (en) * | 2016-12-28 | 2018-07-05 | 青岛海尔股份有限公司 | Energy-saving refrigeration system for refrigerator and method for operating refrigerator having same |
| CN110094922A (en) * | 2019-05-17 | 2019-08-06 | 广州美的华凌冰箱有限公司 | Refrigeration equipment |
| WO2020047757A1 (en) * | 2018-09-04 | 2020-03-12 | 广东美的白色家电技术创新中心有限公司 | Food storage device control method and apparatus, and storage medium |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553128A (en) * | 2003-06-06 | 2004-12-08 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
| CN202792732U (en) * | 2012-07-31 | 2013-03-13 | 东莞市恒工设备有限公司 | Improved refrigerating circuit |
| CN203083227U (en) * | 2013-01-10 | 2013-07-24 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| JP2014077615A (en) * | 2012-10-12 | 2014-05-01 | Toshiba Corp | Refrigerator |
| CN104457104A (en) * | 2014-12-04 | 2015-03-25 | 合肥华凌股份有限公司 | Refrigerator |
| CN204718171U (en) * | 2015-06-01 | 2015-10-21 | 合肥美的电冰箱有限公司 | Cooling cycle system of refrigerator and refrigerator |
-
2015
- 2015-06-01 CN CN201510296614.3A patent/CN104879941B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553128A (en) * | 2003-06-06 | 2004-12-08 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
| CN202792732U (en) * | 2012-07-31 | 2013-03-13 | 东莞市恒工设备有限公司 | Improved refrigerating circuit |
| JP2014077615A (en) * | 2012-10-12 | 2014-05-01 | Toshiba Corp | Refrigerator |
| CN203083227U (en) * | 2013-01-10 | 2013-07-24 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| CN104457104A (en) * | 2014-12-04 | 2015-03-25 | 合肥华凌股份有限公司 | Refrigerator |
| CN204718171U (en) * | 2015-06-01 | 2015-10-21 | 合肥美的电冰箱有限公司 | Cooling cycle system of refrigerator and refrigerator |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121593A1 (en) * | 2016-12-28 | 2018-07-05 | 青岛海尔股份有限公司 | Energy-saving refrigeration system for refrigerator and method for operating refrigerator having same |
| CN107421206A (en) * | 2017-06-30 | 2017-12-01 | 青岛海尔特种电冰箱有限公司 | Refrigerating device and its control method |
| 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 |
| CN107606848A (en) * | 2017-09-19 | 2018-01-19 | 合肥华凌股份有限公司 | The condensation-preventing device and method of refrigerator and refrigerator |
| WO2020047757A1 (en) * | 2018-09-04 | 2020-03-12 | 广东美的白色家电技术创新中心有限公司 | Food storage device control method and apparatus, and storage medium |
| CN111148954A (en) * | 2018-09-04 | 2020-05-12 | 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 |
| 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 |
| CN110094922A (en) * | 2019-05-17 | 2019-08-06 | 广州美的华凌冰箱有限公司 | Refrigeration equipment |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104879941B (en) | 2017-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104879941A (en) | Refrigerator refrigeration circulating system, condensation prevention control method and refrigerator | |
| US10082330B2 (en) | Refrigerator and method for controlling a refrigerator | |
| US9644887B2 (en) | Heat exchanger assembly, refrigerator, and method of controlling a refrigerator | |
| CN108885050A (en) | Refrigerator | |
| TWI391618B (en) | Control method of cooling storage and its compressor | |
| JP2012127514A (en) | Refrigerator-freezer | |
| CN102128509B (en) | Low-noise refrigerating system and refrigerating method thereof | |
| CN111397281B (en) | Defrosting control method for air-cooled refrigerator | |
| CN102589182B (en) | Refrigeration system, refrigerator having the refrigeration system and controlling method of the refrigerator | |
| US7475557B2 (en) | Refrigerator | |
| CN102506557A (en) | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment | |
| CN105164478A (en) | Cooling device | |
| CN204718171U (en) | Cooling cycle system of refrigerator and refrigerator | |
| CN202420014U (en) | Refrigerating system and refrigerator with same | |
| AU2014303819B2 (en) | Refrigerator | |
| CN106766508A (en) | Self-loopa moisture preservation refrigerator and its moisturizing control method | |
| JP2007309585A (en) | Refrigerating device | |
| US11549740B2 (en) | Refrigerator and controlling method for the same | |
| CN203396183U (en) | Refrigerating system and refrigerator with refrigerating system | |
| JP5008440B2 (en) | Cooling storage | |
| KR101723284B1 (en) | A refrigerator and a method for controlling the same | |
| CN203550388U (en) | Refrigerating system of refrigerator and refrigerator | |
| CN113503675A (en) | Refrigerator defrosting demand judgment method | |
| CN102564014A (en) | Defroster of refrigerator | |
| CN111578549B (en) | Condensing unit capable of adjusting cooling capacity and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |