CN110494709A - The heat exchanger of refrigerator - Google Patents

The heat exchanger of refrigerator Download PDF

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Publication number
CN110494709A
CN110494709A CN201880021276.4A CN201880021276A CN110494709A CN 110494709 A CN110494709 A CN 110494709A CN 201880021276 A CN201880021276 A CN 201880021276A CN 110494709 A CN110494709 A CN 110494709A
Authority
CN
China
Prior art keywords
heat exchange
exchange department
refrigerant
department
heat
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.)
Pending
Application number
CN201880021276.4A
Other languages
Chinese (zh)
Inventor
朴泰均
金周赫
李应烈
崔智源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN110494709A publication Critical patent/CN110494709A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0417—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/043—Condensers made by assembling plate-like or laminated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0063—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/08—Assemblies of conduits having different features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heat exchanger of refrigerator of the invention is configured to microchannel type, comprising: the first heat exchange department is connected with the inflow pipe flowed into for refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange；Second heat exchange department is configured at the outside of first heat exchange department, is connected with the discharge pipe of discharge refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange；Connecting tube, connect first heat exchange department and second heat exchange department, the refrigerant to spue from first heat exchange department is supplied to second heat exchange department, the air that first heat exchange department is configured to and carries out heat exchange with second heat exchange department carries out heat exchange, and the sum of sectional area of flat tube of first heat exchange department is greater than the sum of the sectional area of flat tube of second heat exchange department.

Description

The heat exchanger of refrigerator
Technical field
The present invention relates to the heat exchangers of refrigerator.
Background technique
In general, heat exchanger can be in the refrigerating circulatory device being made of compressor, condenser, expansion mechanism, evaporator As condenser or evaporator.
In addition, heat exchanger is set to vehicle, refrigerator etc., and refrigerant and air is made to carry out heat exchange.
Heat exchanger can be divided into fin tube type heat exchanger, micropassage type heat exchanger etc. according to structure.
Fin tube type heat exchanger is made by copper material, and micropassage type heat exchanger is made by aluminium material.
Due to being formed with fine flow path in the inside of micropassage type heat exchanger, with fin tube type heat exchanger phase Than having the advantages that efficiency is more preferable.
Since the small-sized micropassage type heat exchanger used in existing refrigerator etc. is with single cycle (one turn) side Formula production, therefore presence can only design simple coolant channel, and the problem that heat exchanger effectiveness is low.In addition, with In the small-sized micropassage type heat exchanger of refrigerator etc., the quantity configuration of the refrigerant pipe of entrance and exit is identical, therefore The temperature difference of position refrigerant and air that high temperature refrigerant flows into is big, although thus the big heat exchanger effectiveness of heat exchange amount It is low, and it is small in the position refrigerant of low-temperature refrigerant outflow and the temperature difference of air, thus while heat exchange amount is small but heat exchange It is high-efficient, there is the shortcomings that whole heat exchanger effectiveness decline as a result,.
In addition, in existing heat exchanger, the sectional area of the refrigerant pipe at the position at position and outflow that refrigerant flows into It is identical, therefore cannot consider the specific volume variation of refrigerant, thus the problem of there are heat exchange amount declines.
Summary of the invention
Problems to be solved by the invention
Even if the object of the present invention is to provide one kind to be used as condenser, it can also make the flowing of refrigerant smoothly ice The heat exchanger of case.
The present invention also aims to, provide it is a kind of there are multiple column, and the heat of the outstanding refrigerator of heat exchanger effectiveness is handed over Parallel operation.
The present invention also aims to the heat for providing a kind of the smallest refrigerator of the pressure difference for making the refrigerant in multiple column is handed over Parallel operation.
The purpose of the present invention is not limited to the purpose mentioned above arrived, and those skilled in the art can be by below Record is expressly understood that other projects not being mentioned to.
The technical solution solved the problems, such as
In the heat exchanger of refrigerator of the invention, make the second heat exchange department prior to the first heat exchange department and extraneous gas into Row heat exchange, the sum of sectional area of flat tube of the first heat exchange department are greater than the sectional area of the flat tube of second heat exchange department The sum of.
In the heat exchanger of refrigerator of the invention, configured with centre between the first heat exchange department and the second heat exchange department In the case where heat exchange department, the sum of sectional area of flat tube of the intermediate heat exchange department is less than or equal to first heat exchange department The sum of the sectional area of flat tube.
In addition, in the heat exchanger of refrigerator of the invention, the internal diameter of the flat tube of the first heat exchange department and second flat The internal diameter of pipe is identical, and the quantity of the flat tube of the first heat exchange department is greater than the quantity of the flat tube of second heat exchange department.
Invention effect
The heat exchanger of refrigerator of the invention has the effect of as follows more than one.
The first, by making the second heat exchange department carry out heat exchange prior to the first heat exchange department and extraneous gas, and make the The sum of sectional area of flat tube of one heat exchange department is greater than the sum of the sectional area of flat tube of second heat exchange department, to have There is the advantages of can be realized the exchange capacity and heat exchanger effectiveness in view of the optimal heat of specific volume.
The second, by configuring multiple row for the heat-exchange surface of the first heat exchange department, space utilization rate can be made maximum.
It, also can be by being handed in the first heat even if third, in the case where the heat exchanger of multiple microchannel types is laminated Change that form small refrigerant pressure between portion and the second heat exchange department poor, the advantages of flow refrigerant swimmingly.
4th, under the big environment of heat exchange amount demand, intermediate heat exchange department can be used, and hand over using intermediate heat In the case where changing portion, heat exchanger effectiveness and heat exchange amount also can be improved.
Detailed description of the invention
Fig. 1 is the block diagram for showing the refrigerating circulatory device of first embodiment of the invention.
Fig. 2 is the perspective view shown inside outdoor unit shown in FIG. 1.
Fig. 3 is the perspective view of outdoor heat exchanger shown in Fig. 2.
Fig. 4 is the exploded perspective view of outdoor heat exchanger shown in Fig. 2.
Fig. 5 is the cross-sectional view of the first heat exchange department shown in Fig. 4.
Fig. 6 is the cross-sectional view of the second heat exchange department shown in Fig. 4.
Fig. 7 is the song for showing the heat exchange amount of area ratio of the flat tube according to the first heat exchange department and the second heat exchange department Line.
Fig. 8 is the top view of the outdoor heat exchanger of second embodiment of the invention.
Fig. 9 is the top view of the outdoor heat exchanger of third embodiment of the invention.
Figure 10 is the top view of the outdoor heat exchanger of fourth embodiment of the invention.
Specific embodiment
By describing embodiment in detail with reference to the accompanying drawings, definitely advantages of the present invention, feature and its realization side are understood Method.However, can be presented as that mutually different various shapes, the present embodiment are only the present invention is not limited to embodiments disclosed below The abundant open present invention, and provided to completely disclose the scope of the present invention to those of ordinary skill in the art, this hair Bright protection scope is only determined by the scope of the claims.Throughout the specification, same appended drawing reference refers to same composition Element.
As shown, can use and make to be easy the correlativity of one constituent element of explanation and other constituent elements For the relative terms in space " under (below) ", " below (beneath) ", " lower part (lower) ", " upper (above) ", " on Portion (upper) " etc..The relative terms in space should be understood as including not only the direction illustrated in attached drawing, but also including making The term in the direction different from each other of constituent element when used time or movement.For example, in the feelings for reversing constituent element shown in the drawings Under condition, the constituent element for being described as other constituent elements its " under (below) " or " following (beneath) " can be placed in other Constituent element its " upper (above) ".Therefore, can include by lower direction and upper direction as the "lower" of exemplary term.It constitutes Element can also be towards other directions, and according to it come the direction of the relative terms of version space.
In the present specification using to term be to be not intended to limit the present invention for illustrating embodiment.In this theory In bright book, unless there are particularly pointing out, otherwise odd number expression mode includes most expression ways.It uses in the description " include (comprises) " and/or be not precluded " including (comprising) " constituent element mentioned, step and/or There is or add other more than one constituent elements, step and/or movement in movement.
Unless otherwise defined, all terms (including technical and scientific term) used in this specification can be with The meaning that those of ordinary skill in the art are commonly understood by uses.In addition, unless otherwise defined, in usually used dictionary The term being defined is not necessarily to be construed as idealization or excessive.
In the accompanying drawings, the thickness or size of each constituent element are shown in a manner of exaggeration, omission or outline, in order to Explanation.In addition, the size and area of each constituent element and non-fully reflecting actual area or size.
In addition, the angle and direction being mentioned to is recorded as during the structure to embodiment is illustrated with attached drawing Benchmark.In the description, when explanation is about the structure for constituting embodiment, if being not expressly mentioned the datum mark for angle and position Relationship is set, then referring to attached drawing.
In the following, the present invention is specifically described referring to attached drawing.
Fig. 1 is the block diagram for showing the refrigerating circulatory device of first embodiment of the invention, and Fig. 2 is in outdoor unit shown in FIG. 1 The perspective view in portion.
Referring to Figures 1 and 2, the refrigerating circulatory device of the present embodiment may include the compressor 10 for compressing refrigerant, make to freeze Agent and outdoor air carry out the outdoor heat exchanger 20 of heat exchange, the expansion mechanism 12 for expanding refrigerant and make refrigerant with The indoor heat exchanger 13 of room air progress heat exchange.
It can be swapped with outdoor air when the compressed refrigerant of compressor 10 is by outdoor heat exchanger 20 It is condensed.
Outdoor heat exchanger 20 can be used as condenser.
Expansion mechanism 12 can be flowed in the refrigerant that outdoor heat exchanger 20 condenses and is expanded.It is swollen by expansion mechanism 12 Swollen refrigerant can carry out heat exchange and be evaporated with room air when passing through indoor heat exchanger 13.
Indoor heat exchanger 12 can be used as the evaporator for evaporating refrigerant.
The refrigerant that heat exchanger 12 evaporates indoors can be recycled to compressor 10.
Refrigerant is recycled in compressor 10, outdoor heat exchanger 20, expansion mechanism 12 and indoor heat exchanger 13, And it is operated with refrigeration cycle.
Can be connected in compressor 10 will guide the compressor 10 of compressor 10 by the refrigerant of indoor heat exchanger 13 Suction passage.It may be provided with the liquid storage device 14 for storing up liquid refrigerant in 10 suction passage of compressor.
Indoor heat exchanger 13 can be formed with the refrigerant flow path passed through for refrigerant.
Refrigerating circulatory device can be the separated Split type air adjustment equipment of indoor unit I and outdoor unit O, in this situation Under, compressor 10 and outdoor heat exchanger 20 may be disposed at the inside of outdoor unit I.In addition, refrigerating circulatory device can be refrigerator, Indoor heat exchanger 13 is configured to carry out heat exchange, outdoor heat exchanger 20 and food storage portion with the air in food storage portion Outer air carries out heat exchange.In the case of a refrigerator, indoor unit I and outdoor unit O can be configured together with main body.
Expansion mechanism 12 may be disposed at the either side in indoor unit I or outdoor unit O.
Indoor heat exchanger 13 may be disposed at the inside of indoor unit I.
It may be provided with the outdoor fan 15 that outdoor air is blowed to outdoor heat exchanger 20 in outdoor unit O.
Machine I may be provided with the indoor fan 16 that room air is blowed to indoor heat exchanger 13 indoors.
Fig. 3 is the perspective view of outdoor heat exchanger 20 shown in Fig. 2, and Fig. 4 is point of outdoor heat exchanger 20 shown in Fig. 2 Perspective view is solved, Fig. 5 is the cross-sectional view of the first heat exchange department 100 shown in Fig. 4, and Fig. 6 is the second heat exchange department 200 shown in Fig. 4 Cross-sectional view.
Outdoor heat exchanger 20 is the heat exchanger of microchannel type.Outdoor heat exchanger 20 is formed by aluminium material.
Outdoor heat exchanger 20 is made of the first heat exchange department 100 and the second heat exchange department 200.It can also be with the present embodiment Differently, outdoor heat exchanger 20 can be laminated with more than two heat exchange departments.
Outdoor heat exchanger 20 includes the first heat exchange department 100, the second heat exchange department with the stacking of the first heat exchange department 100 200, it connect with the first heat exchange department 100 and supplies the inflow pipe 22 of refrigerant, connect and spit with the second heat exchange department 200 Out the discharge pipe 24 of refrigerant, connection the first heat exchange department 100 and the second heat exchange department 200 and make refrigerant from first heat hand over Change the connecting tube 25 that portion 100 flows to the second heat exchange department 200.
The air that first heat exchange department 100 is configured to and carries out heat exchange with the second heat exchange department 200 carries out heat exchange.Tool For body, the first heat exchange department 100 and the second heat exchange department 200 configure on the path of flow of external air, and outside air is first Heat exchange first is carried out with the second heat exchange department 200, carries out heat exchange secondly with the first heat exchange department 100.In more detail, in room Outer machine is formed with the air inflow part H1 flowed into for outside air, and the air and heat exchange department that flow into carry out heat exchange cocurrent Air outflow portion H2 out, relative to the first heat exchange department 100, air inflow part H1 is more adjacent with the second heat exchange department 200 Configuration.
Therefore, the first heat exchange department 100 for flowing high temperature refrigerant is configured at the high region of extraneous gas temperature, will flowed Second heat exchange department 200 of dynamic low-temperature refrigerant is configured at the low region of extraneous gas temperature, thus can improve outdoor heat exchange The heat exchanger effectiveness of device 20.
First heat exchange department 100 and the second heat exchange department 200 can be configured to define the heat exchange intersected with the flow direction of air Face P.The flow direction of first heat exchange department 100 and the second heat exchange department 200 and air is intersected, and being formed can make air carry out hot friendship The heat-exchange surface for changing and passing through.First heat exchange department 100 and the second heat exchange department 200 can be laminated along the flow direction of air.
First heat exchange department 100 and the second heat exchange department 200 are made by the way that multiple flat tubes 50 are laminated.It is handed in the first heat It changes in portion 100 and the second heat exchange department 200, flat tube 50 is configured in the horizontal direction, so that refrigerant moves in the horizontal direction.
Specifically, when the flow direction of air is front-rear direction, the first heat exchange department 100 and the second heat exchange department 200 Flat tube 50 can configure in long way along horizontal (transverse direction) direction, and multiple flat tubes 50 can vertically be laminated.Air passes through edge Vertical direction (longitudinal direction) stacking multiple flat tubes 50 between space when with flat tube 50 in refrigerant carry out heat exchange.Edge Multiple flat tubes 50 of vertical direction stacking limit heat-exchange surface P1 with aftermentioned fin 60 together.
First heat exchange department 100 may include flat tube 50, left side collector, right side collector and fin 60.Specifically, the One heat exchange department 100 includes: multiple first flat tubes 51, is formed with multiple flow paths in inside；First fin 61 passes through connection the One flat tube 51 transmits heat；First left side collector 71, in conjunction with the side of multiple first flat tubes 51, by with multiple first The connection of 51 side of flat tube to flow for refrigerant；And the first right side collector 81, the other side with multiple first flat tubes 51 In conjunction with by being connected to the other side of multiple first flat tubes 51 come for refrigerant flowing.
First flat tube 51 transversely extends in long way.It is formed in the inside of the first flat tube 51 for refrigerant flowing Flow path.
First flat tube, 51 horizontal arrangement is laminated with multiple first flat tubes 51 in the up-down direction.In the first flat tube 51 inside can be formed with multiple flow paths.
The left side of first flat tube 51 is connected to the first left side collector 71, and the right side of the first flat tube 51 collects with the first right side Pipe 81 is connected to.
First fin 61 is bent to form along the vertical direction, by connecting two the first flat tubes 51 being laminated along the vertical direction To transmit heat.
First right side collector 81 is connected to the other side of multiple first flat tubes 51.First right side collector 81 is along the vertical direction Extend in long way, and connect with pipe 22 is flowed into.The inside of first right side collector 81 is formed as a space, and to multiple first Flat tube 51, which is distributed and is fed through, flows into the refrigerant that pipe 22 flows into.
It can be connected with an inflow pipe 22 in the first right side collector 81, also can connect multiple inflow pipes 22.First In embodiment, the second inflow pipe 22b that pipe 22 may include the first inflow pipe 22a and flow into the configuration of 22 lower part of pipe first is flowed into.
First left side collector 71 is connected to the side of multiple first flat tubes 51.First left side collector 71 is grown along the vertical direction Extend longly, and is connect with connecting tube 25.The inside of first left side collector 71 is formed as a space, and will be from multiple first The other side discharging refrigerant of flat tube 51 guides connecting tube 25 into.
It can be connected with a connecting tube 25 in the first left side collector 71, also can connect multiple connecting tubes 25.First In embodiment, a connecting tube 25 is connected in the center of the first left side collector 71.The side of connecting tube 25 and the first heat exchange The first left side collector 71 in portion 100 connects, and the second left side collector 70 of the other side of connecting tube 25 and the second heat exchange department 200 connects It connects.
It is supplied, is passed through to each first flat tube 51 by the first right side collector 81 by flowing into the refrigerant that pipe 22 flows into The refrigerant and air of first flat tube 51 carry out heat exchange, and are supplied by the first left side collector 71 to connecting tube 25.It flows into Pipe 22 supplies the refrigerant of high temperature and pressure to the first heat exchange department 100 by connecting with compressor 10.
In the same manner as the first heat exchange department 100, the second heat exchange department 200 may include multiple flat tubes 50, fin 60, left side Collector and right side collector.
Specifically, the second heat exchange department 200 by multiple second flat tubes 52, the second fin 62, the second left side collector 70, Second right side collector 80 is constituted.
Second heat exchange department 200 includes: multiple second flat tubes 52, is formed with multiple flow paths in inside；Second fin 62, Heat is transmitted by the second flat tube 52 of connection；Second left side collector 70, in conjunction with multiple second flat tube, 52 sides, by with Multiple second flat tube, 52 side connections to flow for refrigerant；And the second right side collector 80, with multiple second flat tubes 52 The other side combines, and is flowed by being connected to the other side of multiple second flat tubes 52 for refrigerant.
Second flat tube 52 transversely extends in long way.It is formed in the inside of the second flat tube 52 for refrigerant flowing Flow path.
Second flat tube, 52 horizontal arrangement, and it is laminated with multiple second flat tubes 52 along the vertical direction.It is flat second The inside of pipe 52 can be formed with multiple flow paths.
The left side of second flat tube 52 is connected to the second left side collector 70, and the right side of the second flat tube 52 collects with the second right side Pipe 80 is connected to.
Second fin 62 is bent to form along the vertical direction, and two the second flat tubes being laminated along the vertical direction by connection 52 transmit heat.
Second right side collector 80 is connected to the other side of multiple second flat tubes 52.Second right side collector 80 is along the vertical direction Extend in long way, and is connect with effuser 24.The inside of second right side collector 80 is formed as a space, and to effuser 24 Supply the refrigerant to spue from multiple second flat tubes 52.
It can be connected with an effuser 24 in the second right side collector 80, also can connect multiple effusers 24.
Second left side collector 70 is connected to the side of multiple second flat tubes 52.Second left side collector 70 is grown along the vertical direction Extend longly, and is connect with connecting tube 25.The inside of second left side collector 70 is formed as a space, and passes through connecting tube 25 The refrigerant received is supplied to multiple second flat tubes 52.
It can be connected with a connecting tube 25 in the second left side collector 70, also can connect multiple connecting tubes 25.First In embodiment, a connecting tube 25 is connected in the center of the second left side collector 70.Due to first left side of the connection of connecting tube 25 collection Pipe 71 and the second left side collector 70, therefore have the advantages that reduce the length of connecting tube 25 and reduce cost.
Since the refrigerant for carrying out heat exchange in the first heat exchange department 100 is the gas of the high temperature and pressure to spue from compressor 10 Body state, therefore there is big specific volume.The refrigerant of heat exchange is carried out in the first heat exchange department 100 in the second heat exchange department 200 Terminate heat exchange, and can obtain that there is the temperature relatively low gas or gas compared with the refrigerant of the first heat exchange department 100 With the admixture of liquid.Therefore, the specific volume that the refrigerant of heat exchange is carried out in the second heat exchange department is less than in the first heat exchange Portion 100 carries out the specific volume of the refrigerant of heat exchange.
At this point, if making the heat exchange area phase of the heat exchange area of the first heat exchange department 100 with the second heat exchange department 200 Together, then the heat that can significantly reduce because of the big specific volume of the refrigerant in the first heat exchange department 100 in the first heat exchange department 100 is handed over The problem of amount of changing and efficiency.
It therefore, in embodiment, can be by making the conjunction of the sectional area of the flat tube 50 of the first heat exchange department 100 be greater than second The sum of the sectional area of the flat tube 50 of heat exchange department 200, heat exchange amount of the Lai Tigao in the first heat exchange department 100.
For example, the sum of 50 sectional area of flat tube of the first heat exchange department 100 and the flat tube 50 of the second heat exchange department 200 The ratio of the sum of sectional area can be 7~9:1~2.It is preferred that the sum of sectional area of flat tube 50 of the first heat exchange department 100 with The ratio of the sum of the sectional area of flat tube 50 of second heat exchange department 200 is 8:2.At this point, the first heat exchange department 100 and the second heat Heat exchange between exchange part 200 is minimum preferably.Specifically, the heat-exchange surface of the first heat exchange department 100 and the second heat are handed over Heat-exchange surface P1, the P2 for changing portion 200 separate configuration.
Specifically, the flat tube 50 of the sectional area of the flat tube 50 of the first heat exchange department 100 and the second heat exchange department 200 Sectional area can be adjusted by changing the internal diameter of flat tube 50, it is contemplated that cost and easily manufactured property, preferably by changing Become the quantity of the identical flat tube 50 of internal diameter to be adjusted.
The internal diameter of the internal diameter of the flat tube 50 of first heat exchange department 100 and the second flat tube 52 can be identical, the first heat exchange The quantity of the flat tube 50 in portion 100 can be greater than the quantity of the flat tube 50 of the second heat exchange department 200.First heat exchange department 100 The internal diameter of the internal diameter of flat tube 50 and the second flat tube 52 is identical, the quantity and second of the flat tube 50 of the first heat exchange department 100 The ratio of the quantity of the flat tube 50 of heat exchange department 200 can be 7~9:1~2.It is preferred that the flat tube of the first heat exchange department 100 The internal diameter of 50 internal diameter and the second flat tube 52 is identical, the quantity and the second heat exchange of the flat tube 50 of the first heat exchange department 100 The ratio of the quantity of the flat tube 50 in portion 200 is 8:2.
When the quantity of the flat tube 50 of the first heat exchange department 100 is greater than the quantity of the flat tube 50 of the second heat exchange department 200 When, the second flat tube 52 of spacing and the second heat exchange department 200 between the first flat tube 51 of preferably the first heat exchange department 100 Between spacing (Pitch) it is identical.Certainly, the spacing between the first flat tube 51 of the first heat exchange department 100 is smaller than second Spacing (Pitch) between second flat tube 52 of heat exchange department.
In order to more effectively carry out heat exchange and air flowing, from the point of view of the flow direction (front-rear direction) of air, the first heat is handed over Second flat tube 52 of the first flat tube 51 and the second heat exchange department that change portion 100 can be configured to not be overlapped.It is handed over by the first heat Change spatial flow when side of the air between first flat tube 51 in portion 100 between the second flat tube 52 of the second heat exchange department To being changed, and it will increase air residence time.
Fig. 7 is that the heat for the area ratio for showing the flat tube 50 according to the first heat exchange department 100 and the second heat exchange department 200 is handed over The curve for the amount of changing.
Referring to Fig. 7, it can be seen that when in the internal diameter and the second flat tube 52 of the flat tube 50 of the first heat exchange department 100 Diameter is identical, and the ratio of the quantity of the flat tube 50 of the quantity of the flat tube 50 of the first heat exchange department 100 and the second heat exchange department 200 When for 8:2, there is maximum heat exchange amount.
Fig. 8 is the top view of the outdoor heat exchanger 20 of second embodiment of the invention.
When comparing second embodiment and first embodiment, the difference lies in that the first heat exchange department 100 or the second heat exchange The quantity of the heat-exchange surface in portion 200.
Referring to Fig. 8, the flat tube 50 of the first heat exchange department 100 or the second heat exchange department 200 is divided into multiple flat tubes 50 groups, 50 groups of multiple flat tubes can be formed with multiple column along the flow direction of air.
Since the specific volume of the refrigerant in the first heat exchange department 100 is greater than the ratio of the refrigerant in the second heat exchange department 200 Hold, it is therefore desirable to which the quantity of the flat tube 50 of the first heat exchange department 100 is greater than the number of the flat tube 50 of the second heat exchange department 200 Amount.At this point, when the first heat exchange department 100 and the second heat exchange department 200 are respectively configured as a column, it may occur that the first heat exchange The excessive problem of the size in portion 100.
Therefore, in a second embodiment, multiple row is configured by the heat-exchange surface of the first heat exchange department 100.Specifically, In In first heat exchange department 100, so that multiple first flat tubes 51 is vertically configured to that there is defined spacing and form a group, and Thus a heat-exchange surface P1 is limited.50 groups of multiple flat tubes can be formed with multiple column along the flow direction (front and back) of air.That is, hot P1a, P1b, P1c are separated along the longitudinal direction and are formed multiple column in exchange face.
At this point, left side collector or right side collector can be accordingly configured with each heat-exchange surface it is multiple.Specifically, the One right side collector 81 is configured in the heat-exchange surface of each first heat exchange department 100.It is handed in three heat of the first heat exchange department 100 The side configuration in face is changed there are three the first right side collector 81.On each first right side, collector 81, which is connected with, flows into pipe 22.Each The heat-exchange surface of first heat exchange department 100 may be configured with the first left side collector 71.In three heat exchanges of the first heat exchange department 100 There are three the first left side collectors 71 for the other side configuration in face.In each first left side, collector 71 is connected with connecting tube 25.
Therefore, the heat exchange area of the first heat exchange department 100 is not only improved, but also in a limited space by the first heat exchange Portion 100 is configured to multiple row, so as to maximize space utilization rate.
Fig. 9 is the top view of the outdoor heat exchanger 20 of third embodiment of the invention.
When comparing 3rd embodiment and second embodiment, the difference lies in that the structure of left side collector or right side collector.
Referring to Fig. 9, the left side collector or right side collector of 3rd embodiment can with configured in each heat-exchange surface it is multiple flat Flat pipe 50 is connected to.Specifically, the first left side collector 71 of the first heat exchange department 100 is connected to multiple heat-exchange surfaces.With one The structure that a first left side collector 71 is connected to multiple heat-exchange surfaces.First right side collector 81 of the first heat exchange department 100 with it is more A heat-exchange surface connection.The structure being connected to a first right side collector 81 with multiple heat-exchange surfaces.
Therefore, left side collector or right side collector can be shared, so as to reduce cost.
Figure 10 is the top view of the outdoor heat exchanger 20 of fourth embodiment of the invention.
When comparing fourth embodiment and 3rd embodiment, the difference lies in that 3rd embodiment further includes intermediate heat exchange Portion 300.
Referring to Fig.1 0, intermediate heat exchange department 300 include so that refrigerant and air is carried out multiple flat tubes 50 of heat exchange, and And the refrigerant to spue from the first heat exchange department 100 is made to carry out heat exchange and supply to the second heat exchange department 200.
Intermediate heat exchange department 300 is configured to make to carry out backward the of heat exchange by the refrigerant of the first heat exchange department 100 The supply of two heat exchange departments 200.
In the same manner as the first heat exchange department 100, intermediate heat exchange department 300 may include flat tube 50, collector 73 on the left of third, Collector 83 and fin 60 on the right side of third.
Specifically, collector 73 on the left of third are connected in the left side of the flat tube 50 of intermediate heat exchange department 300, in centre The right side of the flat tube 50 of heat exchange department 300 is connected with collector 83 on the right side of third.The flat tube 50 of intermediate heat exchange department 300 limits Heat-exchange surface P3.
Collector 73 is connected by the first left side collector 71 with the first connecting tube 25a on the left of third, and collector 83 is logical on the right side of third The second right side collector 80 is crossed to connect with the second connecting tube 25b.
The specific volume of refrigerant in intermediate heat exchange department 300 less than the refrigerant in the first heat exchange department 100 specific volume, and Greater than the specific volume of the refrigerant in the second heat exchange department 200.
The sum of sectional area of flat tube 50 of intermediate heat exchange part 300 can be made to be less than or equal to the first heat exchange department 100 The sum of the sectional area of flat tube 50, and it is greater than the sum of the sectional area of the flat tube 50 of the second heat exchange department 200.
The sum of sectional area of flat tube 50 of first heat exchange department 100, intermediate heat exchange department 300 flat tube 50 section The ratio of the sum of the sectional area of flat tube 50 of the sum of product and the second heat exchange department 200 can be 7~9:7~9:1~2.
Specifically, as described above, for the ease of manufacture, can make the flat tube 50 of the first heat exchange department 100 internal diameter, The internal diameter of the flat tube 50 of the internal diameter of second flat tube 52 and intermediate heat exchange department 300 is mutually the same, and hands over intermediate heat Change the flat tube 50 in portion 300 quantity be less than or equal to the first heat exchange department 100 flat tube 50 quantity, and be greater than second heat hand over Change the quantity of the flat tube 50 in portion 200.
Therefore, under the big environment of heat exchange amount demand, intermediate heat exchange department 300 can be used, and using intermediate In the case where heat exchange department 300, heat exchanger effectiveness and heat exchange amount also can be improved.
More than, the embodiment of the present invention is illustrated referring to attached drawing, but the present invention is not limited to above-described embodiment, Variform different from each other can be fabricated to, the skilled artisan will appreciate that do not change technical thought of the invention or In the case where required technical characteristic, it can be implemented as other specific forms.It will therefore be appreciated that being the embodiment of the above record All aspects be it is illustrative and and it is non-limiting.

Claims (15)

1. a kind of heat exchanger of refrigerator, is configured to microchannel type, wherein include:
First heat exchange department is connected with and flows into for refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange Inflow pipe；
Second heat exchange department, including making refrigerant and air carry out multiple flat tubes of heat exchange, second heat exchange department is matched It is placed in the outside of first heat exchange department, is connected with the discharge pipe of discharge refrigerant；
Connecting tube, connects first heat exchange department and second heat exchange department, and the second heat exchange department of Xiang Suoshu is supplied from institute The refrigerant of the first heat exchange department discharge is stated,
The air that first heat exchange department is configured to and carries out heat exchange with second heat exchange department carries out heat exchange,
The sum of sectional area of multiple flat tubes of first heat exchange department and multiple flat tubes of second heat exchange department The ratio of the sum of sectional area is 7~9:1~2.
2. the heat exchanger of refrigerator according to claim 1, wherein
Further include:
Air inflow part is flowed into for outside air；And
Air outflow portion, air and second heat exchange department and first heat exchange department for inflow carry out heat exchange cocurrent Out,
Relative to first heat exchange department, the air inflow part is more configured adjacently with second heat exchange department.
3. the heat exchanger of refrigerator according to claim 1, wherein
Multiple flat tubes of first heat exchange department are divided into multiple flat tube groups, stream of multiple flat tube groups along air To being formed with multiple column.
4. the heat exchanger of refrigerator according to claim 1, wherein
First heat exchange department or second heat exchange department include:
Multiple flat tubes, multiple flat tubes are configured to be laterally extended and longitudinally spaced；
Fin transmits heat by connecting the flat tube；
Left side collector, in conjunction with the side of multiple flat tubes, by being connected to the side of multiple flat tubes come for system Cryogen flowing；And
Right side collector, in conjunction with the other side of multiple flat tubes, by be connected to the other side of multiple flat tubes come It is flowed for refrigerant.
5. the heat exchanger of refrigerator according to claim 4, wherein
In first heat exchange department, the multiple fins for connecting multiple flat tubes and multiple flat tubes are limited and sky The heat-exchange surface that the flow direction of gas is intersected, the heat-exchange surface are configured with multiple and separate.
6. the heat exchanger of refrigerator according to claim 5, wherein
The left side collector or the right side collector are accordingly configured to multiple with each heat-exchange surface.
7. the heat exchanger of refrigerator according to claim 5, wherein
The left side collector or the right side collector are connected to multiple flat tubes in each heat-exchange surface configuration.
8. the heat exchanger of refrigerator according to claim 4, wherein
The connecting tube connects the left side collector of first heat exchange department and the right side collector of second heat exchange department.
9. the heat exchanger of refrigerator according to claim 1, wherein
It further include intermediate heat exchange department, the intermediate heat exchange department includes that refrigerant and air is made to carry out the multiple flat of heat exchange Pipe, and the refrigerant to spue from first heat exchange department is made to carry out heat exchange and supply to second heat exchange department,
The sum of sectional area of multiple flat tubes of the intermediate heat exchange department is less than or equal to the multiple flat of first heat exchange department The sum of the sectional area of flat pipe, and it is greater than the sum of the sectional area of multiple flat tubes of second heat exchange department.
10. a kind of heat exchanger of refrigerator, is configured to microchannel type, wherein include:
First heat exchange department is connected with and flows into for refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange Inflow pipe；
Second heat exchange department, including making refrigerant and air carry out multiple flat tubes of heat exchange, second heat exchange department is matched It is placed in the outside of first heat exchange department, is connected with the discharge pipe to spue for refrigerant；And
Connecting tube, connects first heat exchange department and second heat exchange department, and the second heat exchange department of Xiang Suoshu is supplied from institute The refrigerant of the first heat exchange department discharge is stated,
The air that first heat exchange department is configured to and carries out heat exchange with second heat exchange department carries out heat exchange,
The internal diameter of the flat tube of first heat exchange department is identical as the internal diameter of second flat tube,
The ratio of the quantity of the flat tube of the quantity of the flat tube of first heat exchange department and second heat exchange department be 7~ 9:1~2.
11. the heat exchanger of refrigerator according to claim 10, wherein
It further include intermediate heat exchange department, the intermediate heat exchange department includes that refrigerant and air is made to carry out the multiple flat of heat exchange Pipe, and make the refrigerant heat exchange to spue from first heat exchange department and supplied to second heat exchange department,
The quantity of the flat tube of the intermediate heat exchange department is less than or equal to the quantity of the flat tube of first heat exchange department, and big In the quantity of the flat tube of second heat exchange department.
12. a kind of heat exchanger of refrigerator, is configured to microchannel type, wherein include:
First heat exchange department is connected with and flows into for refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange Inflow pipe；
Second heat exchange department, including making refrigerant and air carry out multiple flat tubes of heat exchange, second heat exchange department is matched It is placed in the outside of first heat exchange department, is connected with the discharge pipe to spue for refrigerant；And
Connecting tube, connects first heat exchange department and second heat exchange department, and the second heat exchange department of Xiang Suoshu is supplied from institute The refrigerant of the first heat exchange department discharge is stated,
The air that first heat exchange department is configured to and carries out heat exchange with second heat exchange department carries out heat exchange,
The sum of sectional area of multiple flat tubes of first heat exchange department is greater than multiple flat tubes of second heat exchange department The sum of sectional area.
13. the heat exchanger of refrigerator according to claim 12, wherein
It further include intermediate heat exchange department, the intermediate heat exchange department includes that refrigerant and air is made to carry out the multiple flat of heat exchange Pipe, and the refrigerant to spue from first heat exchange department is made to carry out heat exchange and supply to second heat exchange department,
The sum of sectional area of multiple flat tubes of the intermediate heat exchange department is less than or equal to the multiple flat of first heat exchange department The sum of the sectional area of flat pipe, and it is greater than the sum of the sectional area of multiple flat tubes of second heat exchange department.
14. a kind of heat exchanger of refrigerator, is configured to microchannel type characterized by comprising
First heat exchange department is connected with and flows into for refrigerant including making refrigerant and air carry out multiple flat tubes of heat exchange Inflow pipe；
Second heat exchange department, including making refrigerant and air carry out multiple flat tubes of heat exchange, second heat exchange department is matched It is placed in the outside of first heat exchange department, is connected with the discharge pipe to spue for refrigerant；And
Connecting tube, connects first heat exchange department and second heat exchange department, and the second heat exchange department of Xiang Suoshu is supplied from institute The refrigerant of the first heat exchange department discharge is stated,
The air that first heat exchange department is configured to and carries out heat exchange with second heat exchange department carries out heat exchange,
The internal diameter of the flat tube of first heat exchange department is identical with the internal diameter of second flat tube,
The quantity of the flat tube of first heat exchange department is greater than the quantity of the flat tube of second heat exchange department.
15. the heat exchanger of refrigerator according to claim 12, wherein
It further include intermediate heat exchange department, the intermediate heat exchange department includes that refrigerant and air is made to carry out the multiple flat of heat exchange Pipe, and the refrigerant to spue from first heat exchange department is made to carry out heat exchange and supply to second heat exchange department,
The internal diameter of the flat tube of the third heat exchange department is identical with the internal diameter of first flat tube,
The quantity of the flat tube of the third heat exchange department is less than or equal to the quantity of the flat tube of first heat exchange department, and big In the quantity of the flat tube of second heat exchange department.
CN201880021276.4A 2017-01-25 2018-01-25 The heat exchanger of refrigerator Pending CN110494709A (en)

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