US20240003630A1 - Heat exchanger and air conditioning system having same - Google Patents
Heat exchanger and air conditioning system having same Download PDFInfo
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- US20240003630A1 US20240003630A1 US18/251,489 US202118251489A US2024003630A1 US 20240003630 A1 US20240003630 A1 US 20240003630A1 US 202118251489 A US202118251489 A US 202118251489A US 2024003630 A1 US2024003630 A1 US 2024003630A1
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- exchanger core
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- header
- secondary heat
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- 230000004888 barrier function Effects 0.000 claims description 70
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- 238000001914 filtration Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F28D1/047—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 bent, e.g. in a serpentine or zig-zag
- F28D1/0475—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 bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
- F28D1/0476—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 bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- 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
- F28D1/0233—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 air flow channels
-
- 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
- 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
- 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
- F28D2001/0253—Particular components
- F28D2001/026—Cores
- F28D2001/0273—Cores having special shape, e.g. curved, annular
-
- 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
-
- 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
Definitions
- the embodiments of the present invention relate to a heat exchanger and an air-conditioning system having same.
- a heat exchanger comprises a header and heat exchange tubes.
- the heat exchanger may comprise multiple rows of heat exchanger cores.
- An objective of embodiments of the present invention is to provide a heat exchanger and an air-conditioning system having same, which, for example, enable an improvement in heat exchanger performance.
- Embodiments of the present invention provide a heat exchanger, comprising: a first heat exchanger core, the first heat exchanger core comprising a first secondary heat exchanger core and a second secondary heat exchanger core, each of the first secondary heat exchanger core and second secondary heat exchanger core comprising a heat exchange tube, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core being connected to each other, and orthographic projections of the first secondary heat exchanger core and second secondary heat exchanger core on a plane in which the second secondary heat exchanger core lies being at least partially overlapping; and a second heat exchanger core, the second heat exchanger core comprising a heat exchange tube, the heat exchange tube of the second heat exchanger core being connected to the heat exchange tube of the second secondary heat exchanger core of the first heat exchanger core, wherein, at the same incoming wind speed, the ratio of the wind resistance presented by the heat exchanger to air passing through the first heat exchanger core to the wind resistance presented by the heat exchanger to air passing through the second heat exchanger core is less
- each of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core further comprises a fin; the second heat exchanger core further comprises a fin; and at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least one fin of the second heat exchanger core is greater than the wind resistance or pressure drop caused by at least a portion of at least one fin of the first heat exchanger core.
- a cross-sectional area of at least one heat exchange tube of the second heat exchanger core is greater than a cross-sectional area of at least one heat exchange tube of the first heat exchanger core.
- the heat exchanger further comprises: a first wind barrier plate, the first wind barrier plate being located at one side of the second heat exchanger core in the thickness direction of the second heat exchanger core; and orthographic projections of the first wind barrier plate and the second heat exchanger core on a plane in which the second heat exchanger core lies are at least partially overlapping.
- the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part, the first wind barrier plate being located at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part in the length direction of the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core.
- the first wind barrier plate and the first secondary heat exchanger core of the first heat exchanger core are located at the same side of the second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
- the heat exchanger further comprises: a second wind barrier plate, wherein orthographic projections of the second wind barrier plate and the first heat exchanger core on a plane in which the second secondary heat exchanger core of the first heat exchanger core lies are at least partially overlapping.
- the first wind barrier plate and the second wind barrier plate are located at the opposite side of the second secondary heat exchanger core of the first heat exchanger core from the first secondary heat exchanger core; and at the same incoming wind speed, the wind resistance of the second wind barrier plate is less than or equal to the wind resistance of the first wind barrier plate.
- the heat exchanger further comprises: a third wind barrier plate, the third wind barrier plate being located between the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
- the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part; a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
- a cross-sectional area of the first header is greater than a cross-sectional area of the second header.
- the connecting part comprises multiple connecting tubes, and heat exchange tubes of the first secondary heat exchanger core of the first heat exchanger core are respectively connected to heat exchange tubes of the second secondary heat exchanger core of the first heat exchanger core via the multiple connecting tubes.
- At least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the second heat exchanger core is greater than at least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the first heat exchanger core.
- Embodiments of the present invention further provide an air-conditioning system, comprising the heat exchanger described above.
- the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part; a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
- the first header and the second header are disposed horizontally in use.
- the heat exchanger further comprises: a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core, wherein the first header is disposed horizontally in use, and the first header is below the second heat exchanger core in use.
- the first header is below the second heat exchanger core
- the second header is below the second secondary heat exchanger core of the first heat exchanger core
- the first header is above the second heat exchanger core
- the second header is above the second secondary heat exchanger core of the first heat exchanger core
- the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located upstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
- the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located downstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
- heat exchanger performance can be improved.
- FIG. 1 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention
- FIG. 2 is a schematic perspective view of a heat exchanger according to another embodiment of the present invention.
- FIG. 3 is a schematic perspective view of fins of a heat exchanger according to an embodiment of the present invention.
- FIG. 4 is a sectional view of the fins shown in FIG. 3 .
- An air-conditioning system comprises a compressor, and heat exchangers serving as an evaporator and a condenser.
- a heat exchanger 100 comprises: a first heat exchanger core 1 , the first heat exchanger core 1 comprising a first secondary heat exchanger core 11 and a second secondary heat exchanger core 12 , each of the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 comprising a heat exchange tube 8 , the heat exchange tubes 8 of the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 being connected to each other, and orthographic projections of the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 on a plane in which the second secondary heat exchanger core 12 lies being at least partially overlapping; and a second heat exchanger core 2 , the second heat exchanger core 2 comprising a heat exchange tube 8 , the heat exchange tube 8 of the second heat exchanger core 2 being connected to the heat exchange tube 8 of the second secondary heat exchanger core 12 of the first heat exchanger core 1 .
- the ratio of the wind resistance presented by the heat exchanger 100 to air A passing through the first heat exchanger core 1 to the wind resistance presented by the heat exchanger 100 to air A passing through the second heat exchanger core 2 is less than a predetermined value.
- the ratio of the wind resistance presented by the heat exchanger to passage through the first heat exchanger core to the wind resistance presented by the heat exchanger to passage through the second heat exchanger core is approximately 2.
- the wind resistance presented by the heat exchanger 100 to air A passing through the first heat exchanger core 1 is only the wind resistance presented by the first heat exchanger core 1 to air A if no wind barrier plate is present, but if a wind barrier plate is present, it is the wind resistance presented by the first heat exchanger core 1 and the wind barrier plate to air A.
- the wind resistance presented by the heat exchanger 100 to air A passing through the second heat exchanger core 2 is only the wind resistance presented by the second heat exchanger core 2 to air A if no wind barrier plate is present, but if a wind barrier plate is present, it is the wind resistance presented by the second heat exchanger core 2 and the wind barrier plate to air A.
- the expression “at the same incoming wind speed” does not mean that the incoming wind speeds of the first heat exchanger core and second heat exchanger core when the heat exchanger is being used need to be the same; rather, it means that the ratio of the wind resistance presented by the heat exchanger to passage through the first heat exchanger core to the wind resistance presented by the heat exchanger to passage through the second heat exchanger core needs to be measured for comparison when the incoming wind speeds are the same.
- the expression “at the same incoming wind speed” may be interpreted in a similar way.
- each of the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 of the first heat exchanger core 1 further comprises a fin 9 ;
- the second heat exchanger core 2 further comprises a fin 9 ; and at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least one fin 9 of the second heat exchanger core 2 is greater than the wind resistance or pressure drop caused by at least a portion of at least one fin 9 of the first heat exchanger core 1 .
- the density of at least a portion of at least one fin 9 of the second heat exchanger core 2 is greater than the density of the fin 9 of the first heat exchanger core 1 .
- the fin density may be the number of crests or troughs per unit length of the wave. If the fin is a plate-like fin with a heat exchange tube passing through it, the fin density is the number of fins per unit length perpendicular to the plane of fin extension.
- the wind resistance or pressure drop may also be adjusted by changing at least one of the fin width W (in the wind direction A), the angle ⁇ of fin windows 91 (the angle ⁇ to the wind direction A), the number of windows 91 , and the length H of the windows 91 .
- At least one of the density, fin width W, angle ⁇ of fin windows 91 , number of windows 91 and length H of windows 91 of at least a portion of at least one fin 9 of the second heat exchanger core 2 is greater than at least one of the density, fin width W, angle ⁇ of fin windows 91 , number of windows 91 and length H of windows 91 of at least a portion of at least one fin 9 of the first heat exchanger core 1 . It must be explained that only some fins have been drawn demonstratively in FIGS. 1 and 2 ; the number and distribution, etc. of fins are not limited to this.
- a cross-sectional area of at least one heat exchange tube 8 of the second heat exchanger core 2 is greater than a cross-sectional area of at least one heat exchange tube 8 of the first heat exchanger core 1 .
- the fin of the second heat exchanger core 2 may be the same as the fin of the second secondary heat exchanger core 12 of the first heat exchanger core 1 ; at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least one fin 9 of the second heat exchanger core 2 is greater than the wind resistance or pressure drop caused by at least a portion of at least one fin 9 of the first secondary heat exchanger core 11 of the first heat exchanger core 1 .
- a flat tube of the second heat exchanger core 2 may be the same as a flat tube of the second secondary heat exchanger core 12 of the first heat exchanger core 1 , and a cross-sectional area of at least one heat exchange tube 8 of the second heat exchanger core 2 is greater than a cross-sectional area of at least one heat exchange tube 8 of the first secondary heat exchanger core 11 of the first heat exchanger core 1 .
- the heat exchanger 100 further comprises a first wind barrier plate 31 , the first wind barrier plate 31 being located at one side of the second heat exchanger core 2 in the thickness direction of the second heat exchanger core 2 ; and orthographic projections of the first wind barrier plate 31 and the second heat exchanger core 2 on a plane in which the second heat exchanger core 2 lies are at least partially overlapping.
- the heat exchanger 100 further comprises a connecting part 5 , wherein the heat exchange tubes 8 of the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 of the first heat exchanger core 1 are connected via the connecting part 5 ; and in the length direction of the heat exchange tube 8 of the first secondary heat exchanger core 11 of the first heat exchanger core 1 , the first wind barrier plate 31 is located at the side of the first secondary heat exchanger core 11 of the first heat exchanger core 1 that is remote from the connecting part 5 .
- the first wind barrier plate 31 and the first secondary heat exchanger core 11 of the first heat exchanger core 1 are located at the same side of the second secondary heat exchanger core 12 of the first heat exchanger core 1 in the thickness direction of the second secondary heat exchanger core 12 of the first heat exchanger core 1 .
- the heat exchanger 100 further comprises a second wind barrier plate 32 , wherein orthographic projections of the second wind barrier plate 32 and the first heat exchanger core 1 on a plane in which the second secondary heat exchanger core 12 of the first heat exchanger core 1 lies are at least partially overlapping.
- the first wind barrier plate 31 and the second wind barrier plate 32 are located at the opposite side of the second secondary heat exchanger core 12 of the first heat exchanger core 1 from the first secondary heat exchanger core 11 ; and at the same incoming wind speed, the wind resistance of the second wind barrier plate 32 is less than or equal to the wind resistance of the first wind barrier plate 31 .
- the heat exchanger 100 further comprises a third wind barrier plate 33 , the third wind barrier plate 33 being located between the first secondary heat exchanger core 11 and second secondary heat exchanger core 12 of the first heat exchanger core 1 in the thickness direction of the second secondary heat exchanger core 12 of the first heat exchanger core 1 .
- the heat exchanger 100 further comprises a first header 61 , the first header 61 being connected to the heat exchange tube 8 of the second heat exchanger core 2 at the side of the second heat exchanger core 2 that is remote from the second secondary heat exchanger core 12 of the first heat exchanger core 1 ; and a second header 62 , the second header 62 being connected to the heat exchange tube 8 of the first secondary heat exchanger core 11 of the first heat exchanger core 1 at the side of the first secondary heat exchanger core 11 of the first heat exchanger core 1 that is remote from the connecting part 5 .
- a cross-sectional area of the first header 61 may be greater than a cross-sectional area of the second header 62 .
- the connecting part 5 comprises multiple connecting tubes 51 , and heat exchange tubes 8 of the first secondary heat exchanger core 11 of the first heat exchanger core 1 are respectively connected to heat exchange tubes 8 of the second secondary heat exchanger core 12 of the first heat exchanger core 1 via the multiple connecting tubes 51 .
- the first header 61 and the second header 62 are disposed horizontally in use.
- the first header 61 is disposed horizontally in use, and the first header 61 is below the second heat exchanger core 2 in use.
- the first header 61 is below the second heat exchanger core 2
- the second header 62 is below the second secondary heat exchanger core 12 of the first heat exchanger core 1 .
- the first header 61 is above the second heat exchanger core 2
- the second header 62 is above the second secondary heat exchanger core 12 of the first heat exchanger core 1 .
- the second heat exchanger core 2 and the second secondary heat exchanger core 12 of the first heat exchanger core 1 are located upstream of the first secondary heat exchanger core 11 of the first heat exchanger core 1 in the direction of flow of air A through the heat exchanger 100 .
- the second heat exchanger core 2 and the second secondary heat exchanger core 12 of the first heat exchanger core 1 are located downstream of the first secondary heat exchanger core 11 of the first heat exchanger core 1 in the direction of flow of air A through the heat exchanger 100 .
- headers have been described with reference to the drawings, the headers may have any suitable shape and structure; there is no limitation to the headers shown in FIGS. 1 and 2 .
- the heat exchanger 100 comprises: a first row of heat exchanger cores 101 formed by the second secondary heat exchanger core 12 of the first heat exchanger core 1 and the second heat exchanger core 2 , the first row of heat exchanger cores 101 comprising multiple heat exchange tubes 8 ; a second row of heat exchanger cores 102 formed by the first secondary heat exchanger core 11 of the first heat exchanger core 1 and located at one side of the first row of heat exchanger cores 101 in the thickness direction of the first row of heat exchanger cores 101 , the second row of heat exchanger cores 102 comprising multiple heat exchange tubes 8 , the length of the heat exchange tubes 8 of the first row of heat exchanger cores 101 being greater than the length of the heat exchange tubes 8 of the second row of heat exchanger cores 102 ; and a connecting part 5 , the multiple heat exchange tubes 8 of the first row of heat exchanger cores 101 being connected to the multiple heat exchange tubes 8 of the second row of heat exchanger core
- the difference between the wind resistance presented by the heat exchanger 100 to air A passing through the second row of heat exchanger cores 102 and the wind resistance presented by the heat exchanger 100 to air A passing through the first row of heat exchanger cores 101 at an outer side of the second row of heat exchanger cores 102 is less than a predetermined value.
- the connecting part 5 comprises multiple connecting tubes 51 , the multiple heat exchange tubes 8 of the first row of heat exchanger cores 101 being respectively connected to the multiple heat exchange tubes 8 of the second row of heat exchanger cores 102 via the multiple connecting tubes 51 .
- the first row of heat exchanger cores 101 and the second row of heat exchanger cores 102 are formed by bending the same heat exchanger cores, with the bent part of the heat exchanger cores forming the connecting part 5 .
- the connecting part 5 may comprise heat exchange tubes as the multiple connecting tubes 51 , and fins arranged alternately with the multiple connecting tubes 51 .
- the first row of heat exchanger cores 101 further comprises multiple fins 9 arranged alternately with the multiple heat exchange tubes 8 ;
- the second row of heat exchanger cores 102 further comprises multiple fins 9 arranged alternately with the multiple heat exchange tubes 8 ;
- the density of the fins 9 of the second row of heat exchanger cores 102 is less than the density of the fins 9 of the first row of heat exchanger cores 101 .
- the density of fins used in the second row of heat exchanger cores 102 is less than the density of fins of the first row of heat exchanger cores 101 , so that the second row of heat exchanger cores 102 has low wind resistance.
- the density of fins used in the part of the first row of heat exchanger cores 101 that extends beyond the second row of heat exchanger cores 102 is greater than the density of fins in the part of the first row of heat exchanger cores 101 that faces the second row of heat exchanger cores 102 , to increase the wind resistance of this part.
- the wind speed can thus be substantially equalized over the entire heat exchanger surface, to increase the amount of heat exchanged.
- At least one of the first row of heat exchanger cores 101 and the second row of heat exchanger cores 102 may not comprise fins.
- a cross-sectional area of the heat exchange tubes 8 of the second row of heat exchanger cores 102 is less than a cross-sectional area of the heat exchange tubes 8 of the first row of heat exchanger cores 101 .
- the heat exchanger 100 further comprises a first wind barrier plate 31 , the first wind barrier plate 31 being located at one side of the first row of heat exchanger cores 101 in the thickness direction of the first row of heat exchanger cores 101 , and located at the side of the second row of heat exchanger cores 102 that is remote from the connecting part 5 in the length direction of the heat exchange tubes 8 .
- the first wind barrier plate 31 is close to the first row of heat exchanger cores 101 , and can generate wind resistance. This makes the wind field of the first row of heat exchanger cores 101 and the second row of heat exchanger cores 102 more uniform, to increase the amount of heat exchanged.
- the first wind barrier plate 31 and the second row of heat exchanger cores 102 are located at the same side of the first row of heat exchanger cores 101 in the thickness direction of the first row of heat exchanger cores 101 ; in another embodiment of the present invention, referring to FIG. 2 , the first wind barrier plate 31 and the second row of heat exchanger cores 102 are located at different sides of the first row of heat exchanger cores 101 in the thickness direction of the first row of heat exchanger cores 101 . As shown in FIG. 1 , the first wind barrier plate 31 may be placed at the windward side of the first row of heat exchanger cores 101 . The size of the first wind barrier plate 31 is close to the difference in size of the first row of heat exchanger cores 101 and the second row of heat exchanger cores 102 .
- the heat exchanger 100 further comprises a second wind barrier plate 32 ; the first wind barrier plate 31 and the second wind barrier plate 32 are located at the opposite side of the first row of heat exchanger cores 101 from the second row of heat exchanger cores 102 in the thickness direction of the first row of heat exchanger cores 101 , the second wind barrier plate 32 is located at the side of the first wind barrier plate 31 that faces the connecting part 5 in the length direction of the heat exchange tubes 8 , and the wind resistance of the second wind barrier plate 32 is less than the wind resistance of the first wind barrier plate 31 . As shown in FIG.
- air A flows through the first row of heat exchanger cores 101 and then flows through the first wind barrier plate 31 and second wind barrier plate 32 .
- the overall size of the first wind barrier plate 31 and second wind barrier plate 32 may be close to the size of the heat exchanger 100 .
- the heat exchanger 100 further comprises a first header 61 , the first header 61 being connected to the multiple heat exchange tubes 8 of the first row of heat exchanger cores 101 at the side of the first row of heat exchanger cores 101 that is remote from the connecting part 5 ; and a second header 62 , the second header 62 being connected to the multiple heat exchange tubes 8 of the second row of heat exchanger cores 102 at the side of the second row of heat exchanger cores 102 that is remote from the connecting part 5 .
- the heat exchanger 100 further comprises a third wind barrier plate 33 , the third wind barrier plate 33 being located between the first row of heat exchanger cores 101 and the second header 62 in the thickness direction of the first row of heat exchanger cores 101 .
- the wind barrier plate may also be impermeable to wind.
- the wind barrier plate may have a filtering effect.
- the wind barrier plate may be a filter mesh, a grille or a perforated plate, etc.
- the wind barrier plate material which may be metal, plastic, nylon, etc.
- the first header 61 is disposed horizontally in use, and the first header 61 is below the first row of heat exchanger cores 101 in use.
- the first header 61 and the second header 62 are disposed horizontally or substantially horizontally in use.
- the first header 61 is below the first row of heat exchanger cores 101 and the second header 62 is below the second row of heat exchanger cores 102 in use; or the first header 61 is above the first row of heat exchanger cores 101 and the second header 62 is above the second row of heat exchanger cores 102 in use.
- the first row of heat exchanger cores 101 is located upstream of the second row of heat exchanger cores 102 in the direction of flow of air A through the heat exchanger 100 in use; or the first row of heat exchanger cores 101 is located downstream of the second row of heat exchanger cores 102 in the direction of flow of air A through the heat exchanger 100 in use.
- the first row of heat exchanger cores 101 is located upstream of the second row of heat exchanger cores 102 in the direction of flow of air A through the heat exchanger 100 in use; for example, when the heat exchanger is being used as an evaporator, refrigerant enters the heat exchanger 100 through a connecting tube 72 connected to the second header 62 , and refrigerant can flow out of the heat exchanger 100 through a connecting tube connected to the first header 61 . Air and refrigerant exchange heat in counterflow, and the amount of heat exchanged can thus be increased. Furthermore, a large amount of material is saved with only a small reduction in the amount of heat exchanged (only removing the material of the second row of heat exchanger cores 102 ). Compared with a single-row heat exchanger, this design can save space (in the length direction of the heat exchange tubes).
- the first row of heat exchanger cores 101 is located downstream of the second row of heat exchanger cores 102 in the direction of flow of air A through the heat exchanger 100 in use.
- refrigerant enters the heat exchanger 100 through the connecting tube 72 connected to the second header 62 , and refrigerant can flow out of the heat exchanger 100 through the connecting tube connected to the first header 61 .
- the first header 61 is below the first row of heat exchanger cores 101 in use.
- refrigerant undergoes a phase transition from a gaseous state to a liquid state in the flow direction, and its density increases greatly. If the first header 61 is in a lower region, then in the process of phase transition of refrigerant, liquid refrigerant can flow to the lower region automatically under the action of gravity, so the pressure drop of refrigerant along its course can be reduced, thereby increasing the amount of heat exchanged in the heat exchanger.
- the first header 61 is above the first row of heat exchanger cores 101 in use.
- refrigerant undergoes a phase transition from a dual-phase gaseous/liquid state to a purely gaseous state in the flow direction, and its density decreases greatly.
- gaseous refrigerant can rise to the upper region automatically under the action of buoyancy, so the pressure drop of refrigerant along its course can be reduced, thereby increasing the amount of heat exchanged in the heat exchanger.
- a cross-sectional area of the first header 61 is greater than a cross-sectional area of the second header 62 .
- the diameter of the first header 61 is greater than the diameter of the second header 62 , the ratio of the diameter of the first header 61 to the diameter of the second header 62 being 2-1.
- the diameter of the second header 62 is smaller, the distance from the multiple heat exchange tubes 8 of the first row of heat exchanger cores 101 to the multiple heat exchange tubes 8 of the second row of heat exchanger cores 102 can be reduced, thus reducing the volume of the heat exchanger in the wind direction.
- the pressure drop at the refrigerant side in the first header 61 can be lowered.
- the pressure drop of refrigerant through the first header 61 is lower, so the saturated condensing temperature of refrigerant in the heat exchange tubes will be higher; thus, the temperature difference with respect to air will be greater, thus increasing the amount of heat exchanged.
- the ratio of the length of the heat exchange tubes 8 of the first row of heat exchanger cores 101 to the length of the heat exchange tubes 8 of the second row of heat exchanger cores 102 is 0.1-1.
- the length of the heat exchange tubes 8 of the second row of heat exchanger cores 102 is greater than 100 mm.
- the performance of the heat exchanger 100 can be improved.
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Abstract
A heat exchanger having: a first heat exchanger core including a first sub-heat exchanger core and a second sub-heat exchanger core, wherein the first sub-heat exchanger core and the second sub-heat exchanger core includes heat exchange tubes, the heat exchange tubes of the first sub-heat exchanger core and the second sub-heat exchanger core are connected to each other, and orthographic projections of the first sub-heat exchanger core and the second sub-heat exchanger core on a plane where the second sub-heat exchanger core is located at least overlap partially; and a second heat exchanger core including a heat exchange tube, wherein the heat exchange tube of the second heat exchanger core is connected to the heat exchange tubes of the first sub-heat exchanger core and the second sub-heat exchanger core is disclosed. At the same incoming wind speed, the ratio of the wind resistance of the heat exchanger to the air passing through the first heat exchanger core to the wind resistance of the heat exchanger to the air passing through the second heat exchanger core is less than a predetermined value. By using the heat exchanger according to the present invention, the performance of the heat exchanger can be improved.
Description
- This application is a National Stage application of International Patent Application No. PCT/CN2021/123738, filed on Oct. 14, 2021, which claims priority to Chinese Patent Applications No. 202011213295.2, filed on Nov. 3, 2020, and No. 202022511650.6, filed on Nov. 3, 2020, each of which is hereby incorporated by reference in its entirety.
- The embodiments of the present invention relate to a heat exchanger and an air-conditioning system having same.
- A heat exchanger comprises a header and heat exchange tubes. The heat exchanger may comprise multiple rows of heat exchanger cores.
- An objective of embodiments of the present invention is to provide a heat exchanger and an air-conditioning system having same, which, for example, enable an improvement in heat exchanger performance.
- Embodiments of the present invention provide a heat exchanger, comprising: a first heat exchanger core, the first heat exchanger core comprising a first secondary heat exchanger core and a second secondary heat exchanger core, each of the first secondary heat exchanger core and second secondary heat exchanger core comprising a heat exchange tube, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core being connected to each other, and orthographic projections of the first secondary heat exchanger core and second secondary heat exchanger core on a plane in which the second secondary heat exchanger core lies being at least partially overlapping; and a second heat exchanger core, the second heat exchanger core comprising a heat exchange tube, the heat exchange tube of the second heat exchanger core being connected to the heat exchange tube of the second secondary heat exchanger core of the first heat exchanger core, wherein, at the same incoming wind speed, the ratio of the wind resistance presented by the heat exchanger to air passing through the first heat exchanger core to the wind resistance presented by the heat exchanger to air passing through the second heat exchanger core is less than a predetermined value.
- According to embodiments of the present invention, each of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core further comprises a fin; the second heat exchanger core further comprises a fin; and at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least one fin of the second heat exchanger core is greater than the wind resistance or pressure drop caused by at least a portion of at least one fin of the first heat exchanger core.
- According to embodiments of the present invention, a cross-sectional area of at least one heat exchange tube of the second heat exchanger core is greater than a cross-sectional area of at least one heat exchange tube of the first heat exchanger core.
- According to embodiments of the present invention, the heat exchanger further comprises: a first wind barrier plate, the first wind barrier plate being located at one side of the second heat exchanger core in the thickness direction of the second heat exchanger core; and orthographic projections of the first wind barrier plate and the second heat exchanger core on a plane in which the second heat exchanger core lies are at least partially overlapping.
- According to embodiments of the present invention, the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part, the first wind barrier plate being located at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part in the length direction of the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core.
- According to embodiments of the present invention, the first wind barrier plate and the first secondary heat exchanger core of the first heat exchanger core are located at the same side of the second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
- According to embodiments of the present invention, the heat exchanger further comprises: a second wind barrier plate, wherein orthographic projections of the second wind barrier plate and the first heat exchanger core on a plane in which the second secondary heat exchanger core of the first heat exchanger core lies are at least partially overlapping. According to embodiments of the present invention, in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core, the first wind barrier plate and the second wind barrier plate are located at the opposite side of the second secondary heat exchanger core of the first heat exchanger core from the first secondary heat exchanger core; and at the same incoming wind speed, the wind resistance of the second wind barrier plate is less than or equal to the wind resistance of the first wind barrier plate.
- According to embodiments of the present invention, the heat exchanger further comprises: a third wind barrier plate, the third wind barrier plate being located between the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
- According to embodiments of the present invention, the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part; a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
- According to embodiments of the present invention, a cross-sectional area of the first header is greater than a cross-sectional area of the second header.
- According to embodiments of the present invention, the connecting part comprises multiple connecting tubes, and heat exchange tubes of the first secondary heat exchanger core of the first heat exchanger core are respectively connected to heat exchange tubes of the second secondary heat exchanger core of the first heat exchanger core via the multiple connecting tubes.
- According to embodiments of the present invention, at least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the second heat exchanger core is greater than at least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the first heat exchanger core.
- Embodiments of the present invention further provide an air-conditioning system, comprising the heat exchanger described above.
- According to embodiments of the present invention, the heat exchanger further comprises: a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part; a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
- According to embodiments of the present invention, the first header and the second header are disposed horizontally in use.
- According to embodiments of the present invention, the heat exchanger further comprises: a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core, wherein the first header is disposed horizontally in use, and the first header is below the second heat exchanger core in use.
- According to embodiments of the present invention, in use, the first header is below the second heat exchanger core, and the second header is below the second secondary heat exchanger core of the first heat exchanger core.
- According to embodiments of the present invention, in use, the first header is above the second heat exchanger core, and the second header is above the second secondary heat exchanger core of the first heat exchanger core.
- According to embodiments of the present invention, in use, the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located upstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
- According to embodiments of the present invention, in use, the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located downstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
- By using the heat exchanger and the air-conditioning system having same according to embodiments of the present invention, for example, heat exchanger performance can be improved.
-
FIG. 1 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention; -
FIG. 2 is a schematic perspective view of a heat exchanger according to another embodiment of the present invention; -
FIG. 3 is a schematic perspective view of fins of a heat exchanger according to an embodiment of the present invention; and -
FIG. 4 is a sectional view of the fins shown inFIG. 3 . - The present invention is explained further below in conjunction with the accompanying drawings and specific embodiments.
- An air-conditioning system according to embodiments of the present invention comprises a compressor, and heat exchangers serving as an evaporator and a condenser.
- Referring to
FIGS. 1-2 , aheat exchanger 100 according to embodiments of the present invention comprises: a firstheat exchanger core 1, the firstheat exchanger core 1 comprising a first secondaryheat exchanger core 11 and a second secondaryheat exchanger core 12, each of the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 comprising aheat exchange tube 8, theheat exchange tubes 8 of the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 being connected to each other, and orthographic projections of the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 on a plane in which the second secondaryheat exchanger core 12 lies being at least partially overlapping; and a secondheat exchanger core 2, the secondheat exchanger core 2 comprising aheat exchange tube 8, theheat exchange tube 8 of the secondheat exchanger core 2 being connected to theheat exchange tube 8 of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1. At the same incoming wind speed, the ratio of the wind resistance presented by theheat exchanger 100 to air A passing through the firstheat exchanger core 1 to the wind resistance presented by theheat exchanger 100 to air A passing through the secondheat exchanger core 2 is less than a predetermined value. For example, when the heat exchange tubes and fins of the first heat exchanger core and second heat exchanger core have the same structure and no wind barrier plate is installed, at the same incoming wind speed, the ratio of the wind resistance presented by the heat exchanger to passage through the first heat exchanger core to the wind resistance presented by the heat exchanger to passage through the second heat exchanger core is approximately 2. The wind resistance presented by theheat exchanger 100 to air A passing through the firstheat exchanger core 1 is only the wind resistance presented by the firstheat exchanger core 1 to air A if no wind barrier plate is present, but if a wind barrier plate is present, it is the wind resistance presented by the firstheat exchanger core 1 and the wind barrier plate to air A. Similarly, the wind resistance presented by theheat exchanger 100 to air A passing through the secondheat exchanger core 2 is only the wind resistance presented by the secondheat exchanger core 2 to air A if no wind barrier plate is present, but if a wind barrier plate is present, it is the wind resistance presented by the secondheat exchanger core 2 and the wind barrier plate to air A. It must be explained that the expression “at the same incoming wind speed” does not mean that the incoming wind speeds of the first heat exchanger core and second heat exchanger core when the heat exchanger is being used need to be the same; rather, it means that the ratio of the wind resistance presented by the heat exchanger to passage through the first heat exchanger core to the wind resistance presented by the heat exchanger to passage through the second heat exchanger core needs to be measured for comparison when the incoming wind speeds are the same. When mentioned below, the expression “at the same incoming wind speed” may be interpreted in a similar way. - In embodiments of the present invention, referring to
FIGS. 1-4 , each of the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 of the firstheat exchanger core 1 further comprises afin 9; the secondheat exchanger core 2 further comprises afin 9; and at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least onefin 9 of the secondheat exchanger core 2 is greater than the wind resistance or pressure drop caused by at least a portion of at least onefin 9 of the firstheat exchanger core 1. For example, the density of at least a portion of at least onefin 9 of the secondheat exchanger core 2 is greater than the density of thefin 9 of the firstheat exchanger core 1. For the wave-shaped fin shown inFIGS. 3 and 4 , the fin density may be the number of crests or troughs per unit length of the wave. If the fin is a plate-like fin with a heat exchange tube passing through it, the fin density is the number of fins per unit length perpendicular to the plane of fin extension. In addition, the wind resistance or pressure drop may also be adjusted by changing at least one of the fin width W (in the wind direction A), the angle α of fin windows 91 (the angle α to the wind direction A), the number ofwindows 91, and the length H of thewindows 91. For example, at least one of the density, fin width W, angle α offin windows 91, number ofwindows 91 and length H ofwindows 91 of at least a portion of at least onefin 9 of the secondheat exchanger core 2 is greater than at least one of the density, fin width W, angle α offin windows 91, number ofwindows 91 and length H ofwindows 91 of at least a portion of at least onefin 9 of the firstheat exchanger core 1. It must be explained that only some fins have been drawn demonstratively inFIGS. 1 and 2 ; the number and distribution, etc. of fins are not limited to this. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , a cross-sectional area of at least oneheat exchange tube 8 of the secondheat exchanger core 2 is greater than a cross-sectional area of at least oneheat exchange tube 8 of the firstheat exchanger core 1. - In some embodiments of the present invention, the fin of the second
heat exchanger core 2 may be the same as the fin of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1; at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least onefin 9 of the secondheat exchanger core 2 is greater than the wind resistance or pressure drop caused by at least a portion of at least onefin 9 of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1. In some examples of the present invention, a flat tube of the secondheat exchanger core 2 may be the same as a flat tube of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1, and a cross-sectional area of at least oneheat exchange tube 8 of the secondheat exchanger core 2 is greater than a cross-sectional area of at least oneheat exchange tube 8 of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1. By configuring the fin and/or heat exchange tube of the secondheat exchanger core 2 to be the same as the fin and/or heat exchange tube of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1, the manufacturing difficulty can be reduced. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , theheat exchanger 100 further comprises a firstwind barrier plate 31, the firstwind barrier plate 31 being located at one side of the secondheat exchanger core 2 in the thickness direction of the secondheat exchanger core 2; and orthographic projections of the firstwind barrier plate 31 and the secondheat exchanger core 2 on a plane in which the secondheat exchanger core 2 lies are at least partially overlapping. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , theheat exchanger 100 further comprises a connectingpart 5, wherein theheat exchange tubes 8 of the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 of the firstheat exchanger core 1 are connected via the connectingpart 5; and in the length direction of theheat exchange tube 8 of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1, the firstwind barrier plate 31 is located at the side of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 that is remote from the connectingpart 5. - According to an example of the present invention, the first
wind barrier plate 31 and the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 are located at the same side of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 in the thickness direction of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1. - In embodiments of the present invention, referring to
FIG. 2 , theheat exchanger 100 further comprises a secondwind barrier plate 32, wherein orthographic projections of the secondwind barrier plate 32 and the firstheat exchanger core 1 on a plane in which the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 lies are at least partially overlapping. According to an example of the present invention, in the thickness direction of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1, the firstwind barrier plate 31 and the secondwind barrier plate 32 are located at the opposite side of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 from the first secondaryheat exchanger core 11; and at the same incoming wind speed, the wind resistance of the secondwind barrier plate 32 is less than or equal to the wind resistance of the firstwind barrier plate 31. - In embodiments of the present invention, referring to
FIG. 2 , theheat exchanger 100 further comprises a thirdwind barrier plate 33, the thirdwind barrier plate 33 being located between the first secondaryheat exchanger core 11 and second secondaryheat exchanger core 12 of the firstheat exchanger core 1 in the thickness direction of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1. - In embodiments of the present invention, referring to
FIG. 2 , theheat exchanger 100 further comprises afirst header 61, thefirst header 61 being connected to theheat exchange tube 8 of the secondheat exchanger core 2 at the side of the secondheat exchanger core 2 that is remote from the second secondaryheat exchanger core 12 of the firstheat exchanger core 1; and asecond header 62, thesecond header 62 being connected to theheat exchange tube 8 of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 at the side of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 that is remote from the connectingpart 5. A cross-sectional area of thefirst header 61 may be greater than a cross-sectional area of thesecond header 62. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , the connectingpart 5 comprisesmultiple connecting tubes 51, andheat exchange tubes 8 of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 are respectively connected toheat exchange tubes 8 of the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 via themultiple connecting tubes 51. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , thefirst header 61 and thesecond header 62 are disposed horizontally in use. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , thefirst header 61 is disposed horizontally in use, and thefirst header 61 is below the secondheat exchanger core 2 in use. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , in use, thefirst header 61 is below the secondheat exchanger core 2, and thesecond header 62 is below the second secondaryheat exchanger core 12 of the firstheat exchanger core 1. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , in use, thefirst header 61 is above the secondheat exchanger core 2, and thesecond header 62 is above the second secondaryheat exchanger core 12 of the firstheat exchanger core 1. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , in use, the secondheat exchanger core 2 and the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 are located upstream of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 in the direction of flow of air A through theheat exchanger 100. In embodiments of the present invention, referring toFIGS. 1 and 2 , in use, the secondheat exchanger core 2 and the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 are located downstream of the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 in the direction of flow of air A through theheat exchanger 100. - Although the headers have been described with reference to the drawings, the headers may have any suitable shape and structure; there is no limitation to the headers shown in
FIGS. 1 and 2 . - Referring to
FIGS. 1-2 , theheat exchanger 100 according to embodiments of the present invention comprises: a first row ofheat exchanger cores 101 formed by the second secondaryheat exchanger core 12 of the firstheat exchanger core 1 and the secondheat exchanger core 2, the first row ofheat exchanger cores 101 comprising multipleheat exchange tubes 8; a second row ofheat exchanger cores 102 formed by the first secondaryheat exchanger core 11 of the firstheat exchanger core 1 and located at one side of the first row ofheat exchanger cores 101 in the thickness direction of the first row ofheat exchanger cores 101, the second row ofheat exchanger cores 102 comprising multipleheat exchange tubes 8, the length of theheat exchange tubes 8 of the first row ofheat exchanger cores 101 being greater than the length of theheat exchange tubes 8 of the second row ofheat exchanger cores 102; and a connectingpart 5, the multipleheat exchange tubes 8 of the first row ofheat exchanger cores 101 being connected to the multipleheat exchange tubes 8 of the second row ofheat exchanger cores 102 via the connectingpart 5. The difference between the wind resistance presented by theheat exchanger 100 to air A passing through the second row ofheat exchanger cores 102 and the wind resistance presented by theheat exchanger 100 to air A passing through the first row ofheat exchanger cores 101 at an outer side of the second row ofheat exchanger cores 102 is less than a predetermined value. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , the connectingpart 5 comprises multiple connectingtubes 51, the multipleheat exchange tubes 8 of the first row ofheat exchanger cores 101 being respectively connected to the multipleheat exchange tubes 8 of the second row ofheat exchanger cores 102 via the multiple connectingtubes 51. In the embodiments shown in the figures, the first row ofheat exchanger cores 101 and the second row ofheat exchanger cores 102 are formed by bending the same heat exchanger cores, with the bent part of the heat exchanger cores forming the connectingpart 5. The connectingpart 5 may comprise heat exchange tubes as the multiple connectingtubes 51, and fins arranged alternately with the multiple connectingtubes 51. - In embodiments of the present invention, referring to
FIGS. 1-4 , the first row ofheat exchanger cores 101 further comprisesmultiple fins 9 arranged alternately with the multipleheat exchange tubes 8; the second row ofheat exchanger cores 102 further comprisesmultiple fins 9 arranged alternately with the multipleheat exchange tubes 8; and the density of thefins 9 of the second row ofheat exchanger cores 102 is less than the density of thefins 9 of the first row ofheat exchanger cores 101. For example, the density of fins used in the second row ofheat exchanger cores 102 is less than the density of fins of the first row ofheat exchanger cores 101, so that the second row ofheat exchanger cores 102 has low wind resistance. As another example, the density of fins used in the part of the first row ofheat exchanger cores 101 that extends beyond the second row ofheat exchanger cores 102 is greater than the density of fins in the part of the first row ofheat exchanger cores 101 that faces the second row ofheat exchanger cores 102, to increase the wind resistance of this part. The wind speed can thus be substantially equalized over the entire heat exchanger surface, to increase the amount of heat exchanged. At least one of the first row ofheat exchanger cores 101 and the second row ofheat exchanger cores 102 may not comprise fins. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , a cross-sectional area of theheat exchange tubes 8 of the second row ofheat exchanger cores 102 is less than a cross-sectional area of theheat exchange tubes 8 of the first row ofheat exchanger cores 101. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , theheat exchanger 100 further comprises a firstwind barrier plate 31, the firstwind barrier plate 31 being located at one side of the first row ofheat exchanger cores 101 in the thickness direction of the first row ofheat exchanger cores 101, and located at the side of the second row ofheat exchanger cores 102 that is remote from the connectingpart 5 in the length direction of theheat exchange tubes 8. The firstwind barrier plate 31 is close to the first row ofheat exchanger cores 101, and can generate wind resistance. This makes the wind field of the first row ofheat exchanger cores 101 and the second row ofheat exchanger cores 102 more uniform, to increase the amount of heat exchanged. - In an embodiment of the present invention, referring to
FIG. 1 , the firstwind barrier plate 31 and the second row ofheat exchanger cores 102 are located at the same side of the first row ofheat exchanger cores 101 in the thickness direction of the first row ofheat exchanger cores 101; in another embodiment of the present invention, referring toFIG. 2 , the firstwind barrier plate 31 and the second row ofheat exchanger cores 102 are located at different sides of the first row ofheat exchanger cores 101 in the thickness direction of the first row ofheat exchanger cores 101. As shown inFIG. 1 , the firstwind barrier plate 31 may be placed at the windward side of the first row ofheat exchanger cores 101. The size of the firstwind barrier plate 31 is close to the difference in size of the first row ofheat exchanger cores 101 and the second row ofheat exchanger cores 102. - In embodiments of the present invention, referring to
FIG. 2 , theheat exchanger 100 further comprises a secondwind barrier plate 32; the firstwind barrier plate 31 and the secondwind barrier plate 32 are located at the opposite side of the first row ofheat exchanger cores 101 from the second row ofheat exchanger cores 102 in the thickness direction of the first row ofheat exchanger cores 101, the secondwind barrier plate 32 is located at the side of the firstwind barrier plate 31 that faces the connectingpart 5 in the length direction of theheat exchange tubes 8, and the wind resistance of the secondwind barrier plate 32 is less than the wind resistance of the firstwind barrier plate 31. As shown inFIG. 1 , air A flows through the first row ofheat exchanger cores 101 and then flows through the firstwind barrier plate 31 and secondwind barrier plate 32. The overall size of the firstwind barrier plate 31 and secondwind barrier plate 32 may be close to the size of theheat exchanger 100. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , theheat exchanger 100 further comprises afirst header 61, thefirst header 61 being connected to the multipleheat exchange tubes 8 of the first row ofheat exchanger cores 101 at the side of the first row ofheat exchanger cores 101 that is remote from the connectingpart 5; and asecond header 62, thesecond header 62 being connected to the multipleheat exchange tubes 8 of the second row ofheat exchanger cores 102 at the side of the second row ofheat exchanger cores 102 that is remote from the connectingpart 5. - In embodiments of the present invention, referring to
FIG. 1 , theheat exchanger 100 further comprises a thirdwind barrier plate 33, the thirdwind barrier plate 33 being located between the first row ofheat exchanger cores 101 and thesecond header 62 in the thickness direction of the first row ofheat exchanger cores 101. - In embodiments of the present invention, the wind barrier plate may also be impermeable to wind. The wind barrier plate may have a filtering effect. The wind barrier plate may be a filter mesh, a grille or a perforated plate, etc. There are no restrictions on the wind barrier plate material, which may be metal, plastic, nylon, etc.
- In embodiments of the present invention, referring to
FIGS. 1 and 2 , thefirst header 61 is disposed horizontally in use, and thefirst header 61 is below the first row ofheat exchanger cores 101 in use. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , thefirst header 61 and thesecond header 62 are disposed horizontally or substantially horizontally in use. For example, thefirst header 61 is below the first row ofheat exchanger cores 101 and thesecond header 62 is below the second row ofheat exchanger cores 102 in use; or thefirst header 61 is above the first row ofheat exchanger cores 101 and thesecond header 62 is above the second row ofheat exchanger cores 102 in use. For example, the first row ofheat exchanger cores 101 is located upstream of the second row ofheat exchanger cores 102 in the direction of flow of air A through theheat exchanger 100 in use; or the first row ofheat exchanger cores 101 is located downstream of the second row ofheat exchanger cores 102 in the direction of flow of air A through theheat exchanger 100 in use. - The first row of
heat exchanger cores 101 is located upstream of the second row ofheat exchanger cores 102 in the direction of flow of air A through theheat exchanger 100 in use; for example, when the heat exchanger is being used as an evaporator, refrigerant enters theheat exchanger 100 through a connectingtube 72 connected to thesecond header 62, and refrigerant can flow out of theheat exchanger 100 through a connecting tube connected to thefirst header 61. Air and refrigerant exchange heat in counterflow, and the amount of heat exchanged can thus be increased. Furthermore, a large amount of material is saved with only a small reduction in the amount of heat exchanged (only removing the material of the second row of heat exchanger cores 102). Compared with a single-row heat exchanger, this design can save space (in the length direction of the heat exchange tubes). - The first row of
heat exchanger cores 101 is located downstream of the second row ofheat exchanger cores 102 in the direction of flow of air A through theheat exchanger 100 in use. For example, when the heat exchanger is being used as an evaporator (the air temperature being higher than the refrigerant temperature, the second row ofheat exchanger cores 102 being the first row in the wind flow direction, and the first row ofheat exchanger cores 101 being the second row), refrigerant enters theheat exchanger 100 through the connectingtube 72 connected to thesecond header 62, and refrigerant can flow out of theheat exchanger 100 through the connecting tube connected to thefirst header 61. Air and refrigerant exchange heat in parallel flow; when the refrigerant reaches the extremities (close to the first header 61) of theheat exchange tubes 8 of the first row ofheat exchanger cores 101, the refrigerant must attain an overheated state and increase in temperature. If the two rows of the heat exchanger were of the same length, then air would need to pass through the first row, and after passing through the first row would be reduced in temperature and begin to pass through the second row, but the temperature of the refrigerant in the second row is rising, so the temperature difference between the air and refrigerant will be very small or even non-existent, which is not conducive to heat exchange, and overheating of the refrigerant is unlikely to occur. This can be avoided by the design in question. - The
first header 61 is below the first row ofheat exchanger cores 101 in use. For example, when the heat exchanger is being used as a condenser, refrigerant undergoes a phase transition from a gaseous state to a liquid state in the flow direction, and its density increases greatly. If thefirst header 61 is in a lower region, then in the process of phase transition of refrigerant, liquid refrigerant can flow to the lower region automatically under the action of gravity, so the pressure drop of refrigerant along its course can be reduced, thereby increasing the amount of heat exchanged in the heat exchanger. - The
first header 61 is above the first row ofheat exchanger cores 101 in use. For example, when the heat exchanger is being used as an evaporator, refrigerant undergoes a phase transition from a dual-phase gaseous/liquid state to a purely gaseous state in the flow direction, and its density decreases greatly. If thefirst header 61 is in an upper region, then in the process of phase transition of refrigerant, gaseous refrigerant can rise to the upper region automatically under the action of buoyancy, so the pressure drop of refrigerant along its course can be reduced, thereby increasing the amount of heat exchanged in the heat exchanger. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , a cross-sectional area of thefirst header 61 is greater than a cross-sectional area of thesecond header 62. For example, the diameter of thefirst header 61 is greater than the diameter of thesecond header 62, the ratio of the diameter of thefirst header 61 to the diameter of thesecond header 62 being 2-1. When the diameter of thesecond header 62 is smaller, the distance from the multipleheat exchange tubes 8 of the first row ofheat exchanger cores 101 to the multipleheat exchange tubes 8 of the second row ofheat exchanger cores 102 can be reduced, thus reducing the volume of the heat exchanger in the wind direction. By configuring thefirst header 61 to be larger, the pressure drop at the refrigerant side in thefirst header 61 can be lowered. For example, when the heat exchanger is a condenser, the pressure drop of refrigerant through thefirst header 61 is lower, so the saturated condensing temperature of refrigerant in the heat exchange tubes will be higher; thus, the temperature difference with respect to air will be greater, thus increasing the amount of heat exchanged. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , when theheat exchanger 100 is used as an evaporator, refrigerant enters theheat exchanger 100 through the connectingtube 72 connected to thesecond header 62. - In embodiments of the present invention, referring to
FIGS. 1 and 2 , the ratio of the length of theheat exchange tubes 8 of the first row ofheat exchanger cores 101 to the length of theheat exchange tubes 8 of the second row ofheat exchanger cores 102 is 0.1-1. The length of theheat exchange tubes 8 of the second row ofheat exchanger cores 102 is greater than 100 mm. - By using the
heat exchanger 100 according to embodiments of the present invention, the performance of theheat exchanger 100 can be improved. - Although the above embodiments have been described, certain features in the above embodiments can be combined to form new embodiments.
Claims (21)
1. A heat exchanger, comprising:
a first heat exchanger core, the first heat exchanger core comprising a first secondary heat exchanger core and a second secondary heat exchanger core, each of the first secondary heat exchanger core and second secondary heat exchanger core comprising a heat exchange tube, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core being connected to each other, and orthographic projections of the first secondary heat exchanger core and second secondary heat exchanger core on a plane in which the second secondary heat exchanger core lies being at least partially overlapping; and
a second heat exchanger core, the second heat exchanger core comprising a heat exchange tube, the heat exchange tube of the second heat exchanger core being connected to the heat exchange tube of the second secondary heat exchanger core of the first heat exchanger core,
wherein, at the same incoming wind speed, the ratio of the wind resistance presented by the heat exchanger to air passing through the first heat exchanger core to the wind resistance presented by the heat exchanger to air passing through the second heat exchanger core is less than a predetermined value.
2. The heat exchanger as claimed in claim 1 , wherein:
each of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core further comprises a fin;
the second heat exchanger core further comprises a fin; and
at the same incoming wind speed, the wind resistance or pressure drop caused by at least a portion of at least one fin of the second heat exchanger core is greater than the wind resistance or pressure drop caused by at least a portion of at least one fin of the first heat exchanger core.
3. The heat exchanger as claimed in claim 1 , wherein:
a cross-sectional area of at least one heat exchange tube of the second heat exchanger core is greater than a cross-sectional area of at least one heat exchange tube of the first heat exchanger core.
4. The heat exchanger as claimed in claim 1 , further comprising:
a first wind barrier plate, the first wind barrier plate being located at one side of the second heat exchanger core in the thickness direction of the second heat exchanger core; and orthographic projections of the first wind barrier plate and the second heat exchanger core on a plane in which the second heat exchanger core lies are at least partially overlapping.
5. The heat exchanger as claimed in claim 4 , further comprising:
a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part,
the first wind barrier plate being located at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part in the length direction of the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core.
6. The heat exchanger as claimed in claim 5 , wherein:
the first wind barrier plate and the first secondary heat exchanger core of the first heat exchanger core are located at the same side of the second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
7. The heat exchanger as claimed in claim 4 , further comprising:
a second wind barrier plate, wherein orthographic projections of the second wind barrier plate and the first heat exchanger core on a plane in which the second secondary heat exchanger core of the first heat exchanger core lies are at least partially overlapping.
8. The heat exchanger as claimed in claim 7 , wherein:
in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core, the first wind barrier plate and the second wind barrier plate are located at the opposite side of the second secondary heat exchanger core of the first heat exchanger core from the first secondary heat exchanger core; and at the same incoming wind speed, the wind resistance of the second wind barrier plate is less than or equal to the wind resistance of the first wind barrier plate.
9. The heat exchanger as claimed in claim 1 , further comprising:
a third wind barrier plate, the third wind barrier plate being located between the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core in the thickness direction of the second secondary heat exchanger core of the first heat exchanger core.
10. The heat exchanger as claimed in claim 1 , further comprising:
a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part;
a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and
a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
11. (canceled)
12. The heat exchanger as claimed in claim 5 , wherein:
the connecting part comprises multiple connecting tubes, and heat exchange tubes of the first secondary heat exchanger core of the first heat exchanger core are respectively connected to heat exchange tubes of the second secondary heat exchanger core of the first heat exchanger core via the multiple connecting tubes.
13. The heat exchanger as claimed in claim 1 , wherein:
at least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the second heat exchanger core is greater than at least one of density, fin width, fin window angle, number of windows and window length of at least a portion of at least one fin of the first heat exchanger core.
14. An air-conditioning system, comprising:
the heat exchanger as claimed in claim 1 .
15. The air-conditioning system as claimed in claim 14 , wherein:
the heat exchanger further comprises:
a connecting part, the heat exchange tubes of the first secondary heat exchanger core and second secondary heat exchanger core of the first heat exchanger core being connected via the connecting part;
a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core; and
a second header, the second header being connected to the heat exchange tube of the first secondary heat exchanger core of the first heat exchanger core at the side of the first secondary heat exchanger core of the first heat exchanger core that is remote from the connecting part.
16. The air-conditioning system as claimed in claim 15 , wherein:
the first header and the second header are disposed horizontally in use.
17. The air-conditioning system as claimed in claim 14 , wherein:
the heat exchanger further comprises:
a first header, the first header being connected to the heat exchange tube of the second heat exchanger core at the side of the second heat exchanger core that is remote from the second secondary heat exchanger core of the first heat exchanger core;
wherein the first header is disposed horizontally in use, and the first header is below the second heat exchanger core in use.
18. The air-conditioning system as claimed in claim 15 , wherein:
in use, the first header is below the second heat exchanger core, and the second header is below the second secondary heat exchanger core of the first heat exchanger core.
19. The air-conditioning system as claimed in claim 15 , wherein:
in use, the first header is above the second heat exchanger core, and the second header is above the second secondary heat exchanger core of the first heat exchanger core.
20. The air-conditioning system as claimed in claim 14 , wherein:
in use, the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located upstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
21. The air-conditioning system as claimed in claim 14 , wherein:
in use, the second heat exchanger core and the second secondary heat exchanger core of the first heat exchanger core are located downstream of the first secondary heat exchanger core of the first heat exchanger core in the direction of flow of air through the heat exchanger.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022511650.6 | 2020-11-03 | ||
CN202011213295.2A CN114440497A (en) | 2020-11-03 | 2020-11-03 | Heat exchanger and air conditioning system with same |
CN202022511650.6U CN214333108U (en) | 2020-11-03 | 2020-11-03 | Heat exchanger and air conditioning system with same |
CN202011213295.2 | 2020-11-03 | ||
PCT/CN2021/123738 WO2022095671A1 (en) | 2020-11-03 | 2021-10-14 | Heat exchanger and air conditioning system having same |
Publications (1)
Publication Number | Publication Date |
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US20240003630A1 true US20240003630A1 (en) | 2024-01-04 |
Family
ID=81456945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/251,489 Pending US20240003630A1 (en) | 2020-11-03 | 2021-10-14 | Heat exchanger and air conditioning system having same |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240003630A1 (en) |
EP (1) | EP4242556A1 (en) |
MX (1) | MX2023004490A (en) |
WO (1) | WO2022095671A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106642826B (en) * | 2015-10-28 | 2019-04-19 | 丹佛斯微通道换热器(嘉兴)有限公司 | Heat exchanger |
CN205300044U (en) * | 2015-12-24 | 2016-06-08 | 丹佛斯微通道换热器(嘉兴)有限公司 | Heat exchanger and air conditioning system |
CN209960732U (en) * | 2019-04-30 | 2020-01-17 | 杭州三花微通道换热器有限公司 | Heat exchanger and air conditioning system |
CN214333108U (en) * | 2020-11-03 | 2021-10-01 | 丹佛斯有限公司 | Heat exchanger and air conditioning system with same |
-
2021
- 2021-10-14 US US18/251,489 patent/US20240003630A1/en active Pending
- 2021-10-14 WO PCT/CN2021/123738 patent/WO2022095671A1/en active Application Filing
- 2021-10-14 EP EP21888368.4A patent/EP4242556A1/en active Pending
- 2021-10-14 MX MX2023004490A patent/MX2023004490A/en unknown
Also Published As
Publication number | Publication date |
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WO2022095671A1 (en) | 2022-05-12 |
MX2023004490A (en) | 2023-05-10 |
EP4242556A1 (en) | 2023-09-13 |
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