US20200191490A1 - Heat exchanger and air-conditioning system - Google Patents

Heat exchanger and air-conditioning system Download PDF

Info

Publication number
US20200191490A1
US20200191490A1 US16/710,084 US201916710084A US2020191490A1 US 20200191490 A1 US20200191490 A1 US 20200191490A1 US 201916710084 A US201916710084 A US 201916710084A US 2020191490 A1 US2020191490 A1 US 2020191490A1
Authority
US
United States
Prior art keywords
heat exchange
exchange tube
exchange tubes
tubes
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/710,084
Other languages
English (en)
Inventor
Junfeng Jin
Pierre Olivier Pelletier
Yanxing Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss AS filed Critical Danfoss AS
Assigned to DANFOSS A/S reassignment DANFOSS A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PELLETIER, Pierre Olivier, LI, YANXING, JIN, Junfeng
Publication of US20200191490A1 publication Critical patent/US20200191490A1/en
Priority to US18/961,582 priority Critical patent/US20250085058A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • 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
    • F28D1/0471—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 non-circular cross-section
    • 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
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • F25B2400/061—Several compression cycles arranged in parallel the capacity of the first system being different from the second
    • 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
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0085—Evaporators
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions

Definitions

  • Embodiments of the present invention relate to a heat exchanger and an air-conditioning system.
  • Heat exchangers for two circuits are separate from each other in a conventional air-conditioning system.
  • An object of embodiments of the present invention is to provide a heat exchanger and an air-conditioning system. Thereby, for example, if one of two circuits of a two-circuit air-conditioning system is turned off, at least some of fins for the one circuit may be used for the other circuit to improve a heat exchange efficiency of the heat exchanger.
  • Embodiments of the present invention provide a heat exchanger including: heat exchange tubes, wherein the heat exchange tubes include first heat exchange tubes configured to form a first circuit, and second heat exchange tubes configured to form a second circuit.
  • the first heat exchange tubes have a greater total heat exchange capability than the second heat exchange tubes.
  • the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction, which are arranged in a row in a second direction perpendicular to the first direction, and which are arranged alternately with the heat exchange tubes.
  • first heat exchange tube sets each composed of at least one of the first heat exchange tubes, and second heat exchange tube sets each composed of at least one of the second heat exchange tubes are arranged alternately in the second direction.
  • the first heat exchange tubes, the second heat exchange tubes, and the first fins are aligned, on at least one side in a third direction perpendicular to both the first direction and the second direction, with one another in the second direction.
  • a number of the first heat exchange tubes is greater than a number of the second heat exchange tubes, the first heat exchange tube has a greater length than the second heat exchange tube, the first heat exchange tube has a greater width than the second heat exchange tube, the first heat exchange tube has a greater thickness than the second heat exchange tube, and/or a total cross sectional area of internal channels of the first heat exchange tube is greater than a total cross sectional area of internal channels of the second heat exchange tube.
  • the heat exchange tubes are arranged in the second direction such that a plurality of same repeating units are arranged in the second direction, each of the repeating units is composed of a predetermined number of heat exchange tubes, and in each of the repeating units, the first heat exchange tubes and the second heat exchange tubes are arranged alternately in the second direction.
  • each of the repeating units is composed of three first heat exchange tubes and two second heat exchange tubes, and each of the two second heat exchange tubes is located between two adjacent ones of the three first heat exchange tubes; each of the repeating units is composed of two first heat exchange tubes and one second heat exchange tube, and the one second heat exchange tube is located between the two first heat exchange tubes; or each of the repeating units is composed of four first heat exchange tubes and three second heat exchange tubes, and each of the three second heat exchange tubes is located between two adjacent ones of the four first heat exchange tubes.
  • the first heat exchange tube includes: a first heat exchange tube part and a second heat exchange tube part arranged in a third direction perpendicular to both the first direction and the second direction; and a connection part connecting and fluidly communicating the first heat exchange tube part and the second heat exchange tube part with each other, and the first heat exchange tube part and the second heat exchange tube part are in contact with a same first fin located on one side of the first heat exchange tube part and the second heat exchange tube part in the second direction and are in contact with a same first fin located on the other side of the first heat exchange tube part and the second heat exchange tube part in the second direction.
  • the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction, and which are arranged in a row in a second direction perpendicular to the first direction; and second fins, at least a portion of each of which extends in the first direction, and which are arranged in a row in the second direction perpendicular to the first direction, wherein the first heat exchange tube includes: a first heat exchange tube part and a second heat exchange tube part arranged in a third direction perpendicular to both the first direction and the second direction; and a connection part connecting and fluidly communicating the first heat exchange tube part and the second heat exchange tube part with each other, wherein the first fins and a first set of heat exchange tubes composed of both the first heat exchange tube parts and the second heat exchange tubes are arranged alternately in a row in the second direction perpendicular to the first direction, and wherein the second fins and a second set of heat exchange tubes composed of the second heat exchange tube parts are arranged alternately in a row in the second
  • the first heat exchange tube part, the second heat exchange tube part, and the connection part of the first heat exchange tube are formed by bending a single heat exchange tube.
  • the heat exchanger further includes: first manifolds respectively disposed at two ends of each of the first heat exchange tubes; and second manifolds respectively disposed at two ends of each of the second heat exchange tubes.
  • the first fin has a same size in a third direction perpendicular to both the first direction and the second direction as a bigger one of a portion of the first heat exchange tube in contact with the first fin and a portion of the second heat exchange tube in contact with the first fin.
  • the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction, which are arranged in a row in a second direction perpendicular to the first direction, and which are arranged alternately with the heat exchange tubes, wherein the heat exchanger is bent in an L shape, a U shape, or a C shape when viewed in the second direction.
  • Embodiments of the present invention further provide an air-conditioning system including the above heat exchanger.
  • the heat exchanger for example, if one of two circuits of a two-circuit air-conditioning system is turned off, at least some of fins for the one circuit may be used for the other circuit to improve a heat exchange efficiency of the heat exchanger.
  • FIG. 1 is a schematic perspective view of a heat exchanger according to a first embodiment of the present invention
  • FIG. 2 is a schematic top view of the heat exchanger according to the first embodiment of the present invention, in which flow directions of a refrigerant are indicated by arrows along heat exchange tubes;
  • FIG. 3 is a schematic top view of a heat exchanger according to a second embodiment of the present invention, in which flow directions of a refrigerant are indicated by arrows along heat exchange tubes;
  • FIG. 4 is a schematic partial enlarged view of a heat exchanger according to a third embodiment of the present invention.
  • FIG. 5 is a schematic partial enlarged view of a heat exchanger according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic perspective view of a heat exchanger according to a fifth embodiment of the present invention.
  • FIG. 7 is a schematic top view of the heat exchanger according to the fifth embodiment of the present invention.
  • FIG. 8 is a schematic perspective view of a heat exchanger according to a sixth embodiment of the present invention.
  • FIG. 9 is a schematic top view of the heat exchanger according to the sixth embodiment of the present invention.
  • FIG. 10 is a schematic perspective view of a heat exchanger according to a seventh embodiment of the present invention.
  • FIG. 11 is a schematic top view of the heat exchanger according to the seventh embodiment of the present invention.
  • An air-conditioning system includes a heat exchanger.
  • the air-conditioning system according to the embodiments of the present invention includes a compressor, a heat exchanger as an evaporator, a heat exchanger as a condenser, an expansion valve, and the like.
  • the air-conditioning system may include two or more circuits. Each circuit is constituted by a portion of a heat exchanger configured to form this circuit. A plurality of portions of the heat exchanger respectively configured to form the circuits are connected in parallel and are independent of one another.
  • a heat exchanger 100 includes heat exchange tubes 1 .
  • the heat exchange tubes 1 include first heat exchange tubes 1 A configured to form a first circuit, and second heat exchange tubes 1 B configured to form a second circuit.
  • the first circuit and the second circuit may be two circuits connected in parallel and are independent of each other.
  • the first circuit has a greater heat exchange capability than the second circuit.
  • the first heat exchange tubes 1 A have a greater total heat exchange capability than the second heat exchange tubes 1 B.
  • the heat exchanger 100 according to the embodiments of the present invention further includes first fins 2 , at least a portion of each of which extends in a first direction D 1 , which are arranged in a row in a second direction D 2 perpendicular to the first direction D 1 , and which are arranged alternately with the heat exchange tubes 1 .
  • the first heat exchange tubes 1 A include a plurality of first heat exchange tube sets
  • the second heat exchange tubes 1 B include a plurality of second heat exchange tube sets
  • the plurality of first heat exchange tube sets and the plurality of second heat exchange tube sets are arranged alternately in the second direction D 2 .
  • the plurality of first heat exchange tube sets may have the same number or different numbers of first heat exchange tubes 1 A.
  • the plurality of second heat exchange tube sets may have the same number or different numbers of second heat exchange tubes 1 B.
  • a heat exchange capability between the first heat exchange tubes 1 A and the fins is greater than a heat exchange capability between the second heat exchange tubes 1 B and the fins.
  • a heat exchange capability between the first heat exchange tubes 1 A and the first fins 2 is greater than a heat exchange capability between the second heat exchange tubes 1 B and the first fins 2 .
  • the different heat exchange capabilities of the first heat exchange tubes 1 A and the second heat exchange tubes 1 B become advantageous when refrigerant circuits and associated compression systems have different sizes and capacities to allow for a capacity modulation and an unloading at different stages.
  • first heat exchange tubes 1 A and the second heat exchange tubes 1 B are arranged alternately in the second direction D 2 .
  • second heat exchange tube sets each composed of at least one (one, two, three or more) of the second heat exchange tubes 1 B are arranged alternately in the second direction D 2 .
  • a plurality of first heat exchange tube sets and a plurality of second heat exchange tube sets are arranged alternately.
  • the heat exchange tube 1 may be a flat tube.
  • a number of the first heat exchange tubes 1 A is greater than a number of the second heat exchange tubes 1 B, the first heat exchange tube 1 A has a greater length than the second heat exchange tube 1 B, the first heat exchange tube 1 A has a greater width than the second heat exchange tube 1 B, the first heat exchange tube 1 A has a greater thickness than the second heat exchange tube 1 B, and/or a total cross sectional area of internal channels of the first heat exchange tube 1 A is greater than a total cross sectional area of internal channels of the second heat exchange tube 1 B.
  • the first heat exchange tubes 1 A, the second heat exchange tubes 1 B, and the first fins 2 are aligned, on at least one side in a third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 , with one another in the second direction D 2 .
  • the heat exchange tube 1 may be a flat tube.
  • a number of the first heat exchange tubes 1 A is greater than a number of the second heat exchange tubes 1 B, the first heat exchange tube 1 A has a greater width than the second heat exchange tube 1 B, the first heat exchange tube 1 A has a greater thickness than the second heat exchange tube 1 B, and/or a total cross sectional area of internal channels of the first heat exchange tube 1 A is greater than a total cross sectional area of internal channels of the second heat exchange tube 1 B.
  • the first heat exchange tubes 1 A, the second heat exchange tubes 1 B, and the first fins 2 are aligned, on at least one side in a third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 , with one another in the second direction D 2 .
  • the first fin 2 has a same size in the third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 as a bigger one of a portion of the first heat exchange tube 1 A in contact with the first fin 2 and a portion of the second heat exchange tube 1 B in contact with the first fin 2 .
  • both the first heat exchange tube 1 A and the second heat exchange tube 1 B are in contact with the first fin 2 over their entire sizes (for example their entire widths) in the third direction D 3 .
  • the heat exchange tubes 1 are arranged in the second direction D 2 such that a plurality of same repeating units 20 are arranged in the second direction D 2 , each of the repeating units 20 is composed of a predetermined number of heat exchange tubes 1 , and in each of the repeating units 20 , the first heat exchange tubes 1 A and the second heat exchange tubes 1 B are arranged alternately in the second direction D 2 .
  • each of the repeating units 20 is composed of three first heat exchange tubes 1 A and two second heat exchange tubes 1 B, and each of the two second heat exchange tubes 1 B is located between two adjacent ones of the three first heat exchange tubes 1 A; each of the repeating units 20 is composed of two first heat exchange tubes 1 A and one second heat exchange tube 1 B, and the one second heat exchange tube 1 B is located between the two first heat exchange tubes 1 A; or each of the repeating units 20 is composed of four first heat exchange tubes 1 A and three second heat exchange tubes 1 B, and each of the three second heat exchange tubes 1 B is located between two adjacent ones of the four first heat exchange tubes 1 A.
  • the first heat exchange tube 1 A and the second heat exchange tube 1 B are heat exchange tubes of the same type.
  • the first heat exchange tube 1 A and the second heat exchange tube 1 B may be heat exchange tubes of different types.
  • a ratio of the heat exchange capability between the first heat exchange tubes 1 A and the first fins 2 to the heat exchange capability between the second heat exchange tubes 1 B and the first fins 2 may be 2:1, 3:2, 4:3, or the like.
  • a heat exchange capability of the first fins 2 can be utilized to the utmost extent, while achieving various ratios of the heat exchange capability between the first heat exchange tubes 1 A and the first fins 2 to the heat exchange capability between the second heat exchange tubes 1 B and the first fins 2 .
  • the first heat exchange tube 1 A includes: a first heat exchange tube part 1 A 1 and a second heat exchange tube part 1 A 2 arranged in the third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 ; and a connection part 1 A 3 connecting and fluidly communicating the first heat exchange tube part 1 A 1 and the second heat exchange tube part 1 A 2 with each other.
  • the first heat exchange tube part 1 A 1 and the second heat exchange tube part 1 A 2 are in contact with a same first fin 2 located on one side of the first heat exchange tube part 1 A 1 and the second heat exchange tube part 1 A 2 in the second direction D 2 and are in contact with a same first fin 2 located on the other side of the first heat exchange tube part 1 A 1 and the second heat exchange tube part 1 A 2 in the second direction D 2 .
  • the first heat exchange tube part 1 A 1 , the second heat exchange tube part 1 A 2 , and the connection part 1 A 3 of the first heat exchange tube 1 A may be formed by bending a single heat exchange tube.
  • the heat exchanger 100 further includes: first fins 2 , at least a portion of each of which extends in the first direction D 1 , and which are arranged in a row in the second direction D 2 perpendicular to the first direction D 1 ; and second fins, at least a portion of each of which extends in the first direction D 1 , and which are arranged in a row in the second direction D 2 perpendicular to the first direction D 1 .
  • the first heat exchange tube 1 A includes: a first heat exchange tube part 1 A 1 and a second heat exchange tube part 1 A 2 arranged in the third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 ; and a connection part 1 A 3 connecting and fluidly communicating the first heat exchange tube part 1 A 1 and the second heat exchange tube part 1 A 2 with each other.
  • the first fins 2 and a first set of heat exchange tubes 1 composed of both the first heat exchange tube parts 1 A 1 and the second heat exchange tubes 1 B are arranged alternately in a row in the second direction D 2 perpendicular to the first direction D 1
  • the second fins and a second set of heat exchange tubes 1 composed of the second heat exchange tube parts 1 A 2 are arranged alternately in a row in the second direction D 2 perpendicular to the first direction D 1
  • a height of the second fin in the second direction D 2 is substantially equal to a distance between two adjacent second heat exchange tube parts 1 A 2 , and is greater than a height of the first fin 2 in the second direction D 2 .
  • the first heat exchange tube 1 A has a greater length than the second heat exchange tube 1 B, thereby achieving different heat exchange capabilities of different circulation circuits.
  • an installation space for the heat exchanger is sufficiently utilized.
  • the heat exchanger is obviously superior in heat exchange capability to a single-row heat exchanger.
  • the first heat exchange tube parts 1 A 1 and the second heat exchange tube parts 1 A 2 may be substantially parallel to one another, and may be substantially parallel to the second heat exchange tubes 1 B.
  • the heat exchanger 100 further includes: first manifolds 3 A respectively disposed at two ends of each of the first heat exchange tubes 1 A; and second manifolds 3 B respectively disposed at two ends of each of the second heat exchange tubes 1 B.
  • the heat exchanger 100 further includes: first fins 2 , at least a portion of each of which extends in a first direction D 1 , which are arranged in a row in a second direction D 2 perpendicular to the first direction D 1 , and which are arranged alternately with the heat exchange tubes 1 .
  • the heat exchanger 100 is bent in an L shape ( FIGS. 6 and 7 ), a U shape ( FIGS. 10 and 11 ), or a C shape ( FIGS. 8 and 9 ) when viewed in the second direction D 2 (i.e. when viewed in a top view).
  • the heat exchanger 100 may be bent in any other shape such as a V shape.
  • At least some of the plurality of first fins 2 are shared by the first heat exchange tubes 1 A and the second heat exchange tubes 1 B. Therefore, if one of two circuits of a two-circuit air-conditioning system is turned off, at least some of the first fins for the one circuit may be used for the other circuit to improve a heat exchange efficiency of the heat exchanger.
  • the first heat exchange tubes 1 A and the second heat exchange tubes 1 B are arranged alternately in the second direction D 2 .
  • the heat exchange tube 1 is a flat tube, and the first heat exchange tube 1 A has a greater width than the second heat exchange tube 1 B.
  • the first heat exchange tubes 1 A, the second heat exchange tubes 1 B, and the first fins 2 are aligned, on at least one side in a third direction D 3 perpendicular to both the first direction D 1 and the second direction D 2 , with one another in the second direction D 2 .
  • a flat tube having a small width which is easily bent is used, a manifold having a small diameter may be used, thereby greatly saving a cost.
  • an existing flat tube may be used without needing a flat tube having a new specification.
  • a ratio of the width of the first heat exchange tube 1 A to the width of the second heat exchange tube 1 B is 2:1.
  • the ratio of the heat exchange capability between the first heat exchange tubes 1 A and the first fins 2 to the heat exchange capability between the second heat exchange tubes 1 B and the first fins 2 is 2:1.
  • the heat exchange capacity of the heat exchanger in the part load condition is improved, the heat exchanger can maintain an enough flow rate of a refrigerant for returning an oil in the part load condition, and in the case where one circuit fails, the air-conditioning system can continue to operate through another circuit.
  • the heat exchanger is more compact.
  • the first heat exchange tubes 1 A and the second heat exchange tubes 1 B are arranged alternately to the utmost extent, while achieving heat exchange capabilities of two circulation circuits which are different in ratio.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US16/710,084 2018-12-14 2019-12-11 Heat exchanger and air-conditioning system Abandoned US20200191490A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/961,582 US20250085058A1 (en) 2018-12-14 2024-11-27 Heat exchanger and air-conditioning system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811538891.0 2018-12-14
CN201811538891.0A CN111322794A (zh) 2018-12-14 2018-12-14 换热器和空调系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/961,582 Division US20250085058A1 (en) 2018-12-14 2024-11-27 Heat exchanger and air-conditioning system

Publications (1)

Publication Number Publication Date
US20200191490A1 true US20200191490A1 (en) 2020-06-18

Family

ID=71072825

Family Applications (2)

Application Number Title Priority Date Filing Date
US16/710,084 Abandoned US20200191490A1 (en) 2018-12-14 2019-12-11 Heat exchanger and air-conditioning system
US18/961,582 Pending US20250085058A1 (en) 2018-12-14 2024-11-27 Heat exchanger and air-conditioning system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US18/961,582 Pending US20250085058A1 (en) 2018-12-14 2024-11-27 Heat exchanger and air-conditioning system

Country Status (3)

Country Link
US (2) US20200191490A1 (enrdf_load_stackoverflow)
JP (1) JP7372761B2 (enrdf_load_stackoverflow)
CN (2) CN118935814A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200326140A1 (en) * 2019-04-09 2020-10-15 Pfannenberg Gmbh Heat exchanger arrangement and method for producing a heat exchanger arrangement
US20220205725A1 (en) * 2020-12-29 2022-06-30 Goodman Global Group, Inc Heat exchanger for a heating, ventilation, and air-conditioning system
US11549762B2 (en) 2018-12-14 2023-01-10 Danfoss A/S Heat exchanger and air-conditioning system
WO2023030971A1 (fr) * 2021-09-03 2023-03-09 Valeo Systemes Thermiques Echangeur de chaleur d'une boucle de fluide refrigerant.
WO2023030975A1 (fr) * 2021-09-03 2023-03-09 Valeo Systemes Thermiques Echangeur de chaleur d'une boucle de fluide réfrigérant
US20240175636A1 (en) * 2021-03-29 2024-05-30 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger and air conditioning system
EP4261486A4 (en) * 2020-12-08 2024-10-30 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150338173A1 (en) * 2012-12-27 2015-11-26 Denso Corporation Heat exchanger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909340A1 (de) * 1999-03-03 2000-09-07 Basf Ag Rohrbündelreaktor mit gestuftem Innendurchmesser
US20050279127A1 (en) * 2004-06-18 2005-12-22 Tao Jia Integrated heat exchanger for use in a refrigeration system
JP2006125695A (ja) * 2004-10-27 2006-05-18 Toyota Motor Corp 車両の冷却システム
EP2313733A4 (en) * 2008-07-15 2014-02-26 Carrier Corp INTEGRATED MICROCANAL HEAT EXCHANGER WITH SEVERAL CIRCUITS
JP2010169289A (ja) * 2009-01-21 2010-08-05 Nikkei Nekko Kk 屈曲状熱交換器及びその製造方法
ITMI20110714A1 (it) * 2011-04-29 2012-10-30 Giovanni Chiappa Scambiatore di calore per un impianto geo-termico, e relativo impianto, atti a garantire lo sfruttamento di fonti energetiche rinnovabili
US8835039B2 (en) * 2011-10-21 2014-09-16 Avl Powertrain Engineering, Inc. Battery cooling plate and cooling system
DE102012005871A1 (de) * 2012-03-23 2013-09-26 Valeo Klimasysteme Gmbh Kühlvorrichtung für eine Fahrzeugbatterie sowie Fahrzeugbatterie mit Kühlvorrichtung
KR101642326B1 (ko) * 2013-10-18 2016-07-26 주식회사 엘지화학 수직 배치된 공통 출입구가 형성된 2이상의 분리된 유로를 가진 히트싱크
CN103644685A (zh) * 2013-12-26 2014-03-19 杭州三花微通道换热器有限公司 换热器和具有该换热器的多制冷系统空调
CN107923714B (zh) * 2015-06-04 2020-08-11 达纳加拿大公司 带有局域流量分配的用于均匀冷却电池单体的热交换器
CN107218822B (zh) * 2016-03-21 2019-04-19 丹佛斯微通道换热器（嘉兴）有限公司 换热器和空调系统
JP2018100803A (ja) * 2016-12-21 2018-06-28 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 熱交換装置、空気調和装置の室内機及び空気調和装置の室外機
KR102378425B1 (ko) * 2017-06-07 2022-03-24 삼성에스디아이 주식회사 배터리 팩

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150338173A1 (en) * 2012-12-27 2015-11-26 Denso Corporation Heat exchanger

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11549762B2 (en) 2018-12-14 2023-01-10 Danfoss A/S Heat exchanger and air-conditioning system
US20200326140A1 (en) * 2019-04-09 2020-10-15 Pfannenberg Gmbh Heat exchanger arrangement and method for producing a heat exchanger arrangement
US11913730B2 (en) * 2019-04-09 2024-02-27 Pfannenberg Gmbh Heat exchanger arrangement and method for producing a heat exchanger arrangement
EP4261486A4 (en) * 2020-12-08 2024-10-30 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger
US20220205725A1 (en) * 2020-12-29 2022-06-30 Goodman Global Group, Inc Heat exchanger for a heating, ventilation, and air-conditioning system
US11774178B2 (en) * 2020-12-29 2023-10-03 Goodman Global Group, Inc. Heat exchanger for a heating, ventilation, and air-conditioning system
US20230392870A1 (en) * 2020-12-29 2023-12-07 Goodman Global Group, Inc. Heat exchanger for a heating, ventilation, and air-conditioning system
US20240175636A1 (en) * 2021-03-29 2024-05-30 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger and air conditioning system
WO2023030971A1 (fr) * 2021-09-03 2023-03-09 Valeo Systemes Thermiques Echangeur de chaleur d'une boucle de fluide refrigerant.
WO2023030975A1 (fr) * 2021-09-03 2023-03-09 Valeo Systemes Thermiques Echangeur de chaleur d'une boucle de fluide réfrigérant
FR3126767A1 (fr) * 2021-09-03 2023-03-10 Valeo Systemes Thermiques Echangeur de chaleur d’une boucle de fluide refrigerant.
FR3126764A1 (fr) * 2021-09-03 2023-03-10 Valeo Systemes Thermiques Echangeur de chaleur d’une boucle de fluide refrigerant.

Also Published As

Publication number Publication date
JP2020094791A (ja) 2020-06-18
CN111322794A (zh) 2020-06-23
US20250085058A1 (en) 2025-03-13
CN118935814A (zh) 2024-11-12
JP7372761B2 (ja) 2023-11-01

Similar Documents

Publication Publication Date Title
US20250085058A1 (en) Heat exchanger and air-conditioning system
US11549762B2 (en) Heat exchanger and air-conditioning system
US11585610B2 (en) Heat exchanger and air-conditioning system
KR100368544B1 (ko) 고효율저용적의냉매용증발기
JP6017047B2 (ja) 熱交換器、空調機、冷凍サイクル装置及び熱交換器の製造方法
US4712612A (en) Horizontal stack type evaporator
US9267740B2 (en) Manifold fluid communication plate
US10309701B2 (en) Heat exchanger and air conditioner
US12117248B2 (en) Microchannel flat tube and microchannel heat exchanger
US20050061488A1 (en) Automotive heat exchanger
US20110056667A1 (en) Integrated multi-circuit microchannel heat exchanger
US10113813B2 (en) Tube for heat exchanger
US20130153174A1 (en) Microchannel heat exchanger fin
US20150053384A1 (en) Heat exchanger header, heat exchanger having the heat exchanger header, refrigeration cycle apparatus and air-conditioning apparatus
US20170211892A1 (en) Tube for heat exchanger
KR20140143650A (ko) 차량용 쿨링모듈
US20170356700A1 (en) Frost tolerant microchannel heat exchanger
JP2007163004A (ja) 熱交換器
US20240200838A1 (en) Evaporative condenser
JP2016148480A (ja) 熱交換器
KR100606332B1 (ko) 공조기기의 열교환기용 납작튜브
WO2022180823A1 (ja) 熱交換器および冷凍サイクル装置
US20250012518A1 (en) Composite heat exchanger
US20240200889A1 (en) Heat exchanger and air conditioning system having same
KR19980050607A (ko) 공조기용 열교환기

Legal Events

Date Code Title Description
STPP Information on status: patent application and granting procedure in general

Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED

AS Assignment

Owner name: DANFOSS A/S, DENMARK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PELLETIER, PIERRE OLIVIER;JIN, JUNFENG;LI, YANXING;SIGNING DATES FROM 20190610 TO 20190718;REEL/FRAME:051904/0967

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STCV Information on status: appeal procedure

Free format text: NOTICE OF APPEAL FILED

STCV Information on status: appeal procedure

Free format text: APPEAL BRIEF (OR SUPPLEMENTAL BRIEF) ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION