CN104359243A - Refrigeration system for refrigerator and refrigerator - Google Patents
Refrigeration system for refrigerator and refrigerator Download PDFInfo
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- CN104359243A CN104359243A CN201410706424.XA CN201410706424A CN104359243A CN 104359243 A CN104359243 A CN 104359243A CN 201410706424 A CN201410706424 A CN 201410706424A CN 104359243 A CN104359243 A CN 104359243A
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- Prior art keywords
- condensing unit
- switch valve
- bypass branch
- refrigerator
- refrigeration system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigeration system for a refrigerator. The refrigeration system comprises a compressor, an evaporator, at least two condensing units, at least one bypass branch and a switch valve, wherein each bypass branch is connected in parallel with at least one condensing unit, the switch valve comprises an inlet and at least two outlets, the inlet and one outlet of the switch valve are connected between the compressor and one condensing unit adjacent to the compressor or is connected between the two adjacent condensing units, the rest outlets of the switch valve are respectively communicated with one end of each bypass branch, the other end of each bypass branch is communicated to the input part of the condensing unit behind the coolant flowing direction of the switch valve, and the switch valve controls the bypass branch to be opened or closed for forming different coolant circulation paths and changing the evaporation units in the coolant circulation paths. The invention also discloses the refrigerator. The refrigeration system provided by the invention has the advantages that through regulating the sizes of condensers in the coolant circulation paths, the refrigerator can realize higher refrigeration speed, and a better energy-saving effect can also be achieved.
Description
Technical field
The present invention relates to refrigerator technical field, particularly relate to a kind of refrigeration system and refrigerator of refrigerator.
Background technology
Refrigerator is a kind of conventional household electrical appliance, and at present, efficient, energy-conservation refrigerator is more and more subject to liking of user.Existing refrigerator, in process of refrigerastion, generally all uses fixing condenser to carry out heat exchange, if condenser is comparatively large, although can ensure the fast-refrigerating when ambient temperature is higher or load is larger, compares power consumption when ambient temperature is lower or load is less; If condenser is less, although the relative energy-saving when ambient temperature is lower or load is less can be ensured, but when ambient temperature is higher or load is larger, refrigerating speed is comparatively slow, and the defect of prior art is the size that can not regulate condenser, thus can not take into account refrigerating speed and energy-saving effect.
Summary of the invention
Main purpose of the present invention is the refrigeration system and the refrigerator that provide a kind of refrigerator, is intended to solution and must not regulates the size of condenser thus the technical problem can not taking into account refrigerating speed and energy-saving effect.
The refrigeration system of refrigerator provided by the invention, comprise compressor and evaporimeter, described refrigeration system also comprises at least two condensing units be series at successively between described compressor and evaporimeter, and at least one bypass branch and for controlling the switch valve that each bypass branch opens or closes, each described bypass branch is in parallel with at least one described condensing unit; Described switch valve comprises an import and at least two outlets, the import of described switch valve and wherein an outlet are connected between described compressor and a condensing unit adjacent with described compressor or are connected between two adjacent condensing units, all the other outlets of described switch valve are communicated with each bypass branch one end respectively, and the other end of each described bypass branch is communicated to the porch of the condensing unit later along refrigerant flow direction of switch valve; Described switch valve controls described bypass branch and opens or closes, and to form different refrigerant circulation paths, and the condensing unit changed in described refrigerant circulation path and the condensing unit quantity controlled in described refrigerant circulation path are at least one.
Preferably, in described refrigerant circulation path, part not in parallel with described bypass branch is set to primary path, on described bypass branch or described primary path be provided with reservoir for collecting refrigerant unnecessary in described refrigerant circulation path.
Preferably, the quantity of described switch valve is one, and the quantity of described switch valve outlet is identical with the quantity of described condensing unit, and many one of the quantity of bypass branch described in the number ratio of described switch valve outlet.
Preferably, be set to first condensing unit by described compressor along first condensing unit of described refrigerant flow direction, second condensing unit is set to time condensing unit, the import of described switch valve and the outlet of described first condensing unit, one outlet of described switch valve and the inlet communication of described condensing unit, other outlets of described switch valve are communicated to one end of each bypass branch respectively, and the other end of each bypass branch is communicated to the exit of other each condensing units except described first condensing unit respectively.
Preferably, be set to first condensing unit by described compressor along first condensing unit of described refrigerant flow direction, second condensing unit is set to time condensing unit, the import of described switch valve and the outlet of described compressor, one outlet of described switch valve and the inlet communication of described first condensing unit, other outlets of described switch valve are communicated to one end of each bypass branch respectively, and the other end of each bypass branch is communicated to the porch of other each condensing units except described first condensing unit respectively.
Preferably, the export volume of described switch valve is two, and bypass branch described in each is in parallel with condensing unit described in, and two outlets of described switch valve connect one to one with the entrance of described condensing unit parallel with one another and bypass branch.
Preferably, few one of the quantity of condensing unit described in the number ratio of described bypass branch, and the quantity of described switch valve is identical with the quantity of described bypass branch.
Preferably, also comprise and be series at device for drying and filtering between described condensing unit and evaporimeter and capillary.
Preferably, described bypass branch is also in series with device for drying and filtering and capillary.
The refrigerator that the present invention further provides comprises refrigeration system, described refrigeration system comprises compressor and evaporimeter, described refrigeration system also comprises at least two condensing units be series at successively between described compressor and evaporimeter, and at least one bypass branch and for controlling the switch valve that each bypass branch opens or closes, each described bypass branch is in parallel with at least one described condensing unit; Described switch valve comprises an import and at least two outlets, the import of described switch valve and wherein an outlet are connected between described compressor and a condensing unit adjacent with described compressor or are connected between two adjacent condensing units, all the other outlets of described switch valve are communicated with each bypass branch one end respectively, and the other end of each described bypass branch is communicated to the porch of the condensing unit later along refrigerant flow direction of switch valve; Described switch valve controls described bypass branch and opens or closes, and to form different refrigerant circulation paths, and the condensing unit changed in described refrigerant circulation path and the condensing unit quantity controlled in described refrigerant circulation path are at least one.
The present invention by connecting at least two condensing units between compressor and evaporimeter, and by arranging at least one bypass branch and for controlling the switch valve that each bypass branch opens or closes, each bypass branch is in parallel with at least one condensing unit, switch valve comprises an import and at least two outlets, the import of described switch valve and wherein an outlet are connected between compressor and a condensing unit adjacent with compressor or are connected between two adjacent condensing units, all the other outlets of switch valve are communicated with each bypass branch one end respectively, the other end of each bypass branch is communicated to the porch of the condensing unit later along refrigerant flow direction of switch valve, switch valve controls bypass branch and opens or closes, to form different refrigerant circulation paths, thus the condensing unit quantity changed in refrigerant circulation path, when refrigerator ambient temperature is higher or load is larger, the condensing unit of a greater number can be accessed by on-off valve control matchmaker peripheral passage of freezing, thus realize fast-refrigerating, when refrigerator ambient temperature is lower or load is lower, can be freezed by on-off valve control the condensing unit of matchmaker peripheral passage access lesser amt, thus realizes energy-conservation.Refrigeration system provided by the invention can by regulating the size of condenser in refrigerant circulation path, thus make refrigerator can have refrigerating speed faster, can have good energy-saving effect again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the refrigeration system of refrigerator of the present invention;
Fig. 2 is the structural representation of the second embodiment of the refrigeration system of refrigerator of the present invention;
Fig. 3 is the structural representation of the 3rd embodiment of the refrigeration system of refrigerator of the present invention;
Fig. 4 is the structural representation of the 4th embodiment of the refrigeration system of refrigerator 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 with reference to 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 refrigeration system of refrigerator, with reference to Fig. 1, Fig. 1 is the structural representation of the first embodiment of the refrigeration system of refrigerator of the present invention, in one embodiment, this refrigeration system comprises compressor 10 and evaporimeter 20, described refrigeration system also comprises at least two condensing units 30 be series at successively between described compressor 10 and evaporimeter 20, and at least one bypass branch 40 and for controlling the switch valve 50 that each bypass branch 40 opens or closes, each described bypass branch 40 is in parallel with at least one described condensing unit 30; Described switch valve 50 comprises an import and at least two outlets, the import of described switch valve 50 and wherein an outlet are connected between described compressor 10 and a condensing unit 30 adjacent with described compressor 10 or are connected between two adjacent condensing units 30, all the other outlets of described switch valve 50 are communicated with each bypass branch 40 one end respectively, and the other end of each described bypass branch 40 is communicated to the porch of the condensing unit 30 later along refrigerant flow direction of switch valve 50; Described switch valve 50 controls described bypass branch 40 and opens or closes, and to form different refrigerant circulation paths, and the condensing unit 30 changed in described refrigerant circulation path and condensing unit 30 quantity controlled in described refrigerant circulation path are at least one.It should be noted that each condensing unit 30 can be an independent condenser, or be a part for condenser, namely by switch valve 50, a condenser is divided into multiple condensing unit 30.
In the present embodiment, the quantity of condensing unit 30 and bypass branch 40 can be arranged according to actual needs, is again not construed as limiting.The connected mode of the mode that above-mentioned bypass branch 40 is in parallel with condensing unit 30 and switch valve 50 all can be arranged according to actual needs, as long as when switch valve 50 can be made to open different outlets (simultaneously other port closings), this refrigeration system can form different refrigerant circulation paths, and the condensing unit 30 accessed in refrigerant circulation paths different described in each is different or the quantity of condensing unit 30 is different.
Above-mentioned switch valve 50 can be magnetic valve, and magnetic valve has an entrance, and export volume can be arranged according to actual needs.Above-mentioned refrigeration system also comprises controller, and controller is electrically connected with magnetic valve, and controller exports control signal and opens with the corresponding outlet of Controlling solenoid valve, simultaneously other port closings.Such as, controller is according to the ambient temperature detected, when judging whether current outside temperature is less than preset temperature value, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing lesser amt in current refrigerant circulation path; When judging that current outside temperature is greater than preset temperature value, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing a greater number in current refrigerant circulation path.Or, controller is according to the refrigerator indoor temperature detected, and judge whether the difference between current refrigerator indoor temperature and preset temperature value is greater than predetermined threshold value, when being greater than, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing a greater number in current refrigerant circulation path; When being less than, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing lesser amt in current refrigerant circulation path.Or, controller is according to current compressor 10 rotating speed detected, and judge whether compressor 10 rotating speed is greater than predetermined threshold value, when compressor 10 rotating speed is greater than predetermined threshold value, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing a greater number in current refrigerant circulation path; When compressor 10 rotating speed is less than predetermined threshold value, then the corresponding outlet of Controlling solenoid valve is opened and other port closings, to make the condensing unit 30 accessing lesser amt in current refrigerant circulation path.Above-mentioned Controlling solenoid valve exports the mode opened or closed and is not limited to above several, specifically can arrange according to actual needs.
The present invention by connecting at least two condensing units 30 between compressor 10 and evaporimeter 20, and by arranging at least one bypass branch 40 and for controlling the switch valve 50 that each bypass branch 40 opens or closes, each bypass branch 40 is in parallel with at least one condensing unit 30, switch valve 50 comprises an import and at least two outlets, the import of described switch valve 50 and wherein an outlet are connected between compressor 10 and a condensing unit 30 adjacent with compressor 10 or are connected between two adjacent condensing units 30, all the other outlets of switch valve 50 are communicated with each bypass branch 40 one end respectively, the other end of each bypass branch 40 is communicated to the porch of the condensing unit 30 later along refrigerant flow direction of switch valve 50, switch valve 50 controls bypass branch 40 and opens or closes, to form different refrigerant circulation paths, thus condensing unit 30 quantity changed in refrigerant circulation path, when refrigerator ambient temperature is higher or load is larger, the condensing unit 30 that refrigerant circulation path accesses a greater number can be controlled by switch valve 50, thus realize fast-refrigerating, when refrigerator ambient temperature is lower or load is lower, the condensing unit 30 of refrigerant circulation path access lesser amt can be controlled by switch valve 50, thus realize energy-conservation.Refrigeration system provided by the invention can by regulating the size of condenser in refrigerant circulation path, thus make refrigerator can have refrigerating speed faster, can have good energy-saving effect again.
Refrigeration system provided by the invention both can be applied in direct cooling refrigerator, also can apply with wind cooling refrigerator, both can adopt invariable frequency compressor, also can adopt frequency-changeable compressor.
Further, in the present invention in a certain or all embodiments, part not in parallel with described bypass branch 40 in described refrigerant circulation path is set to primary path, on described bypass branch 40 or described primary path be provided with reservoir 60 for collecting refrigerant unnecessary in described refrigerant circulation path.
In the present embodiment, when all condensing units 30 of refrigeration system are all connected to refrigerant circulation path, if this refrigerant circulation path is main refrigerant circulation path, if all the other refrigerant circulation paths are time refrigerant circulation path.The position of above-mentioned reservoir 60 can be arranged according to actual needs, as long as all have reservoir 60 in each different secondary refrigerant circulation path that this refrigeration system can be made to be formed.Such as, a reservoir 60 can be all set on each bypass branch 40, also only a reservoir 60 can be set on primary path.
Particularly, several condensing unit 30 and the set-up mode between bypass branch 40 and switch valve 50 is below provided.
The first embodiment is, the quantity of described switch valve 50 is one, and the quantity that described switch valve 50 exports is identical with the quantity of described condensing unit 30, and many one of the quantity of bypass branch 40 described in the number ratio of described switch valve 50 outlet.Be set to first condensing unit 30, second condensing unit 30 by described compressor 10 along first condensing unit 30 of described refrigerant flow direction and be set to time condensing unit 30, the import of described switch valve 50 and the outlet of described first condensing unit 30, one outlet of described switch valve 50 and the inlet communication of described condensing unit 30, other outlets of described switch valve 50 are communicated to one end of each bypass branch 40 respectively, and the other end of each bypass branch 40 is communicated to the exit of other each condensing units 30 except described first condensing unit 30 respectively.
Please referring again to Fig. 1, the present embodiment is described to arrange two condensing units 30, and switch valve 50 has two outlets, and the quantity of bypass branch 40 is one.Above-mentioned refrigeration system also comprises and is series at device for drying and filtering 70 between described condensing unit 30 and evaporimeter 20 and capillary 80.Connect two condensing units 30, described device for drying and filtering 70, capillary 80, evaporimeter 20 successively in above-mentioned compressor 10 exit, and the outlet of evaporimeter 20 is communicated with compressor 10 entrance.Above-mentioned switch valve 50 is into scene 2 magnetic valve, above-mentioned two condensing units 30 are set to the first condensing unit 31 and the second condensing unit 32 respectively, wherein, compressor 10 outlet is communicated with the entrance of the first condensing unit 31, the outlet of the first condensing unit 31 and the inlet communication of magnetic valve, one outlet of magnetic valve is communicated with the entrance of the second condensing unit 32, the outlet of the second condensing unit 32 is communicated with the entrance of device for drying and filtering 70, and another outlet of magnetic valve is connected to the outlet (being namely communicated with the entrance of device for drying and filtering 70) of the second condensing unit 32 through bypass branch 40.It should be noted that bypass branch 40 is the pipeline for refrigerant circulation.With reference to Fig. 2, Fig. 2 is the structural representation of the second embodiment of the refrigeration system of refrigerator of the present invention, on the basis of above-described embodiment, the outlet (namely bypass branch 40 deviates from one end of magnetic valve) of above-mentioned bypass branch 40 can also be connected directly to the porch of evaporimeter 20, now, bypass branch 40 needs connect in addition device for drying and filtering 70 and capillary 80.It should be noted that above-mentioned reservoir 60 can be series on bypass branch 40, also can be series on primary path.Preferably, before above-mentioned reservoir 60 is series at device for drying and filtering 70, namely the outlet of above-mentioned bypass branch 40 is communicated with the entrance of reservoir 60, and the outlet of reservoir 60 is communicated with the entrance of device for drying and filtering 70.
During work, when controller is according to the refrigerating speed that the current needs of rule judgment refrigerator preset are higher, the then port closing for being connected with bypass branch 40 of gauge tap valve 50, simultaneously the opening for the outlet be connected with the second condensing unit 32 of gauge tap valve 50, thus make compressor 10, first condensing unit 31, second condensing unit 32 and evaporimeter 20 form a refrigerant circulation path, namely make whole condensing units 30 of refrigerator all participate in refrigeration, therefore improve the refrigerating speed of refrigerator.When controller is according to the refrigerating speed that the current needs of rule judgment refrigerator preset are lower, then the opening for the outlet be connected with bypass branch 40 of gauge tap valve 50, simultaneously gauge tap valve 50 for the port closing with the second condensing unit 32, thus make compressor 10, first condensing unit 31 and evaporimeter 20 form a refrigerant circulation path, namely the first condensing unit 31 of refrigerator is made to participate in refrigeration, second condensing unit 32 does not participate in refrigeration, therefore change the size of condensing unit 30 in refrigerant circulation path, effectively serve energy-conserving action.
The second embodiment is, the quantity of described switch valve 50 is one, and the quantity that described switch valve 50 exports is identical with the quantity of described condensing unit 30, and many one of the quantity of bypass branch 40 described in the number ratio of described switch valve 50 outlet.First condensing unit 30 is set to along first condensing unit 30 of described refrigerant flow direction by described compressor 10, second condensing unit 30 is set to time condensing unit 30, with reference to Fig. 3, Fig. 3 is the structural representation of the 3rd embodiment of the refrigeration system of refrigerator of the present invention, the import of described switch valve 50 and the outlet of described compressor 10, one outlet of described switch valve 50 and the inlet communication of described first condensing unit 30, other outlets of described switch valve 50 are communicated to one end of each bypass branch 40 respectively, the other end of each bypass branch 40 is communicated to the porch of other each condensing units 30 except described first condensing unit 30 respectively.
The present embodiment is described to arrange two condensing units 30, and switch valve 50 has two outlets, and the quantity of bypass branch 40 is one.Above-mentioned refrigeration system also comprises and is series at device for drying and filtering 70 between described condensing unit 30 and evaporimeter 20 and capillary 80.Connect two condensing units 30, described device for drying and filtering 70, capillary 80, evaporimeter 20 successively in above-mentioned compressor 10 exit, and the outlet of evaporimeter 20 is communicated with compressor 10 entrance.Above-mentioned switch valve 50 is into scene 2 magnetic valve, above-mentioned two condensing units 30 are set to the first condensing unit 31 and the second condensing unit 32 respectively, wherein, the import of compressor 10 outlet solenoid valve connects, one outlet of magnetic valve is communicated with the entrance of the first condensing unit 31, the outlet of the first condensing unit 31 is communicated with the entrance of the second condensing unit 32, the outlet of the second condensing unit 32 is communicated with the entrance of device for drying and filtering 70, and another outlet of magnetic valve is connected to the entrance of the second condensing unit 32 through bypass branch 40.It should be noted that bypass branch 40 is the pipeline for refrigerant circulation.It should be noted that above-mentioned reservoir 60 can be series on bypass branch 40, also can be series on primary path.Preferably, before above-mentioned reservoir 60 is series at device for drying and filtering 70, namely the outlet of above-mentioned second condensing unit 32 is communicated with the entrance of reservoir 60, and the outlet of reservoir 60 is communicated with the entrance of device for drying and filtering 70.
During work, when controller is according to the refrigerating speed that the current needs of rule judgment refrigerator preset are higher, the then port closing for being connected with bypass branch 40 of gauge tap valve 50, simultaneously the opening for the outlet be connected with the first condensing unit 31 of gauge tap valve 50, thus make compressor 10, first condensing unit 31, second condensing unit 32 and evaporimeter 20 form a refrigerant circulation path, make whole condensing units 30 of refrigerator all participate in refrigeration, therefore improve the refrigerating speed of refrigerator.When controller is according to the refrigerating speed that the current needs of rule judgment refrigerator preset are lower, then the opening for the outlet be connected with bypass branch 40 of gauge tap valve 50, simultaneously gauge tap valve 50 for the port closing with the first condensing unit 31, thus make compressor 10, second condensing unit 32 and evaporimeter 20 form a refrigerant circulation path, the second condensing unit 32 of refrigerator is made to participate in refrigeration, first condensing unit 31 does not participate in refrigeration, therefore change the size of condensing unit 30 in refrigerant circulation path, effectively serve energy-conserving action.
With reference to Fig. 4, Fig. 4 is the structural representation of the 4th embodiment of the refrigeration system of refrigerator of the present invention, the third embodiment is, the export volume of described switch valve 50 is two, described in each, bypass branch 40 is in parallel with condensing unit described in one 30, and two outlets of described switch valve 50 connect one to one with the entrance of described condensing unit 30 parallel with one another and bypass branch 40.
In the present embodiment, be described to arrange three condensing units 30, owing at least ensureing that there is a condensing unit 30 in refrigerant circulation path, therefore preferably, few one of the quantity of condensing unit 30 described in the number ratio of bypass branch 40, and the quantity of described switch valve 50 is identical with the quantity of described bypass branch 40.Namely two switch valves 50 and two bypass branch 40 are set in the present embodiment.Above-mentioned three condensing units 30 are set to the first condensing unit 31 successively, second condensing unit 32 and the 3rd condensing unit 33, above-mentioned two switch valves 50 are set to the first switch valve 51 and second switch valve 52 respectively, above-mentioned two bypass branch 40 are set to the first bypass branch 40 and the second bypass branch 40 respectively, the outlet of above-mentioned compressor 10 is communicated with the entrance of the first condensing unit 31, the outlet of the first condensing unit 31 and the inlet communication of the first switch valve 51, one outlet of the first switch valve 51 is communicated with the entrance of the second condensing unit 32, another outlet of first switch valve 51 is connected to the import department of second switch valve 52 via the first bypass branch 40, the outlet of the second condensing unit 32 and the inlet communication of second switch valve 52, one outlet of second switch valve 52 is communicated with the entrance of the 3rd condensing unit 33, and another outlet of second switch valve 52 is connected to the exit of the 3rd condensing unit 33 via the second bypass branch 40.
During work, the first condensing unit 31 participates in refrigeration all the time.Opening or closing of the first switch valve 51 outlet corresponding to second switch valve 52 is controlled by controller, the second condensing unit 32 can be controlled and whether the 3rd condensing unit 33 participates in kind of refrigeration cycle, such as, the first condensing unit 31 and the second condensing unit 32 can be made to participate in refrigeration, 3rd condensing unit 33 does not participate in refrigeration, or make the first condensing unit 31 and the 3rd condensing unit 33 participate in refrigeration, second condensing unit 32 does not participate in refrigeration, or only make the first condensing unit 31 participate in refrigeration, second condensing unit 32 and the 3rd condensing unit 33 do not participate in refrigeration, or make the first condensing unit 31, second condensing unit 32 and the 3rd condensing unit 33 participate in refrigeration simultaneously, the same above-described embodiment of concrete control mode, do not repeat them here.
It should be noted that in other embodiments, also can make the second condensing unit 32 or the 3rd condensing unit 33 not in parallel with bypass branch 40, with make the second condensing unit 32 or the 3rd condensing unit 33 participate in all the time refrigeration.
Embodiment it should be noted that above-mentioned so all can be combined with each other.
Further, when being connected to the porch of evaporimeter 20 between above-mentioned bypass branch 40, described bypass branch 40 is also in series with device for drying and filtering 70 and capillary 80, thus ensure that this refrigeration system so refrigerant circulation path is all connected with device for drying and filtering 70 and capillary 80.
The present invention also provides a kind of refrigerator, and this refrigerator comprises refrigeration system, and the structure of this refrigeration system can refer to above-described embodiment, does not repeat them here.Naturally, the refrigerator due to the present embodiment have employed the technical scheme of above-mentioned refrigeration system, and therefore this refrigerator has all beneficial effects of above-mentioned refrigeration system.
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 (10)
1. the refrigeration system of a refrigerator, comprise compressor and evaporimeter, it is characterized in that, described refrigeration system also comprises at least two condensing units be series at successively between described compressor and evaporimeter, and at least one bypass branch and for controlling the switch valve that each bypass branch opens or closes, each described bypass branch is in parallel with at least one described condensing unit; Described switch valve comprises an import and at least two outlets, the import of described switch valve and wherein an outlet are connected between described compressor and a condensing unit adjacent with described compressor or are connected between two adjacent condensing units, all the other outlets of described switch valve are communicated with each bypass branch one end respectively, and the other end of each described bypass branch is communicated to the porch of the condensing unit later along refrigerant flow direction of switch valve; Described switch valve controls described bypass branch and opens or closes, and to form different refrigerant circulation paths, and the condensing unit changed in described refrigerant circulation path and the condensing unit quantity controlled in described refrigerant circulation path are at least one.
2. the refrigeration system of refrigerator as claimed in claim 1, it is characterized in that, in described refrigerant circulation path, part not in parallel with described bypass branch is set to primary path, on described bypass branch or described primary path be provided with reservoir for collecting refrigerant unnecessary in described refrigerant circulation path.
3. the refrigeration system of refrigerator as claimed in claim 2, it is characterized in that, the quantity of described switch valve is one, and the quantity of described switch valve outlet is identical with the quantity of described condensing unit, and many one of the quantity of bypass branch described in the number ratio of described switch valve outlet.
4. the refrigeration system of refrigerator as claimed in claim 3, it is characterized in that, first condensing unit is set to along first condensing unit of described refrigerant flow direction by described compressor, second condensing unit is set to time condensing unit, the import of described switch valve and the outlet of described first condensing unit, one outlet of described switch valve and the inlet communication of described condensing unit, other outlets of described switch valve are communicated to one end of each bypass branch respectively, the other end of each bypass branch is communicated to the exit of other each condensing units except described first condensing unit respectively.
5. the refrigeration system of refrigerator as claimed in claim 3, it is characterized in that, first condensing unit is set to along first condensing unit of described refrigerant flow direction by described compressor, second condensing unit is set to time condensing unit, the import of described switch valve and the outlet of described compressor, one outlet of described switch valve and the inlet communication of described first condensing unit, other outlets of described switch valve are communicated to one end of each bypass branch respectively, the other end of each bypass branch is communicated to the porch of other each condensing units except described first condensing unit respectively.
6. the refrigeration system of refrigerator as claimed in claim 2, it is characterized in that, the export volume of described switch valve is two, bypass branch described in each is in parallel with condensing unit described in, and two outlets of described switch valve connect one to one with the entrance of described condensing unit parallel with one another and bypass branch.
7. the refrigeration system of refrigerator as claimed in claim 6, is characterized in that, few one of the quantity of condensing unit described in the number ratio of described bypass branch, and the quantity of described switch valve is identical with the quantity of described bypass branch.
8. the refrigeration system of the refrigerator as described in any one of claim 1 to 7, is characterized in that, also comprises and is series at device for drying and filtering between described condensing unit and evaporimeter and capillary.
9. the refrigeration system of refrigerator as claimed in claim 8, is characterized in that, described bypass branch is also in series with device for drying and filtering and capillary.
10. a refrigerator, is characterized in that, described refrigerator comprises the refrigeration system of the refrigerator as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706424.XA CN104359243A (en) | 2014-11-27 | 2014-11-27 | Refrigeration system for refrigerator and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410706424.XA CN104359243A (en) | 2014-11-27 | 2014-11-27 | Refrigeration system for refrigerator and refrigerator |
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| CN104359243A true CN104359243A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410706424.XA Pending CN104359243A (en) | 2014-11-27 | 2014-11-27 | Refrigeration system for refrigerator and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107270569A (en) * | 2017-06-16 | 2017-10-20 | 珠海格力电器股份有限公司 | Refrigerating system and water dispenser comprising same |
| CN110319624A (en) * | 2018-03-29 | 2019-10-11 | 青岛海尔股份有限公司 | Refrigerant condensing unit and refrigerator with it |
| CN112944770A (en) * | 2019-11-26 | 2021-06-11 | 青岛海尔电冰箱有限公司 | Refrigerator and refrigerating system thereof |
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| EP1455149A1 (en) * | 2003-03-07 | 2004-09-08 | Linde Kältetechnik GmbH & Co.KG | A connection-ready refrigerator and arrangement of such a refrigerator |
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| CN107270569A (en) * | 2017-06-16 | 2017-10-20 | 珠海格力电器股份有限公司 | Refrigerating system and water dispenser comprising same |
| CN110319624A (en) * | 2018-03-29 | 2019-10-11 | 青岛海尔股份有限公司 | Refrigerant condensing unit and refrigerator with it |
| CN112944770A (en) * | 2019-11-26 | 2021-06-11 | 青岛海尔电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| CN112944770B (en) * | 2019-11-26 | 2022-12-20 | 青岛海尔电冰箱有限公司 | Refrigerator and refrigerating system thereof |
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Application publication date: 20150218 |