WO2022085067A1 - Échangeur de chaleur et dispositif à cycle de réfrigération - Google Patents

Échangeur de chaleur et dispositif à cycle de réfrigération Download PDF

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Publication number
WO2022085067A1
WO2022085067A1 PCT/JP2020/039355 JP2020039355W WO2022085067A1 WO 2022085067 A1 WO2022085067 A1 WO 2022085067A1 JP 2020039355 W JP2020039355 W JP 2020039355W WO 2022085067 A1 WO2022085067 A1 WO 2022085067A1
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WIPO (PCT)
Prior art keywords
plate
flat tubes
heat exchanger
header
flat
Prior art date
Application number
PCT/JP2020/039355
Other languages
English (en)
Japanese (ja)
Inventor
剛志 前田
篤史 ▲高▼橋
悟 梁池
幸大 宮川
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to US18/027,236 priority Critical patent/US20230375283A1/en
Priority to EP20958620.5A priority patent/EP4235058A4/fr
Priority to JP2022556850A priority patent/JPWO2022085067A1/ja
Priority to CN202080106198.5A priority patent/CN116507871A/zh
Priority to PCT/JP2020/039355 priority patent/WO2022085067A1/fr
Publication of WO2022085067A1 publication Critical patent/WO2022085067A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05341—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/0292—Other particular headers or end plates with 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • 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

Definitions

  • This disclosure relates to heat exchangers and refrigeration cycle devices.
  • Japanese Patent Application Laid-Open No. 2015-113983 describes a first heat exchange element having a plurality of first flat tubes, a second heat exchange element having a plurality of second flat tubes, and a refrigerant that has passed through the first heat exchange element.
  • a heat exchanger provided with a folded header to be folded and introduced into a second heat exchange element is disclosed.
  • each first flat tube and each second flat tube are arranged at the same height position in the vertical direction, one of the first flat tube and the second flat tube is more than the other. It will be located on the downstream side in the ventilation direction. That is, in the ventilation direction, the flat pipe arranged on the downstream side is arranged in the dead water area formed behind the flat pipe arranged on the upstream side. As a result, in the above heat exchanger, the heat exchange performance of the heat exchange element arranged on the downstream side in the ventilation direction cannot be sufficiently exhibited.
  • a main object of the present disclosure is to provide a heat exchanger having improved heat exchange performance as compared with the above heat exchanger, and a refrigeration cycle device provided with the heat exchanger.
  • the heat exchanger includes a first heat exchange unit and a second heat exchange unit arranged side by side in the first direction intersecting the gravity direction.
  • the first heat exchange section intersects each of the plurality of first fins extending in the direction of gravity and arranged side by side in the second direction intersecting the direction of gravity and the first direction.
  • the second heat exchange portion extends in the direction of gravity and is mounted so as to intersect each of the plurality of second fins arranged side by side in the second direction and the plurality of second fins.
  • the third header includes a plurality of first insertion holes through which the second ends of the plurality of first flat tubes are inserted, and a plurality of second insertion holes through which the second ends of the plurality of second flat tubes are inserted. Includes a first plate on which a plurality of communication spaces are formed, and a second plate on which a plurality of communication spaces connected to each of the plurality of first insertion holes and each of the plurality of second insertion holes are formed.
  • the heat exchanger includes a first heat exchange unit and a second heat exchange unit arranged side by side in the first direction intersecting the gravity direction.
  • the first heat exchange section intersects each of the plurality of first fins extending in the direction of gravity and arranged side by side in the second direction intersecting the direction of gravity and the first direction.
  • the second heat exchange portion extends in the direction of gravity and is mounted so as to intersect each of the plurality of second fins arranged side by side in the second direction and the plurality of second fins.
  • a second end is connected to each second end of each of the plurality of second flat tubes, and a plurality of connected spaces connected to each of the plurality of first flat tubes and each of the plurality of second flat tubes are formed. Further provided with 3 headers.
  • each of the plurality of second flat tubes is arranged so as not to overlap each of the plurality of first flat tubes.
  • At least one first flat tube connected to one of the plurality of connected spaces is arranged at a lower position in the direction of gravity than at least one second flat tube connected to one connected space. ..
  • FIG. It is a top view of the heat exchanger which concerns on Embodiment 1.
  • FIG. It is a front view of the heat exchanger shown in FIG. It is a side view of the heat exchanger shown in FIG. It is a partial cross-sectional view for demonstrating the composition of the 1st fin, the 1st flat tube, the 2nd fin, and the 2nd flat tube in the heat exchanger shown in FIG. It is a figure for demonstrating the 1st board of the column passing header shown in FIG. It is a figure for demonstrating the 2nd board of the column passing header shown in FIG. It is a figure for demonstrating the 3rd plate of the column passing header shown in FIG.
  • FIG. 9 It is an exploded perspective view for demonstrating the connection relation of the 1st plate, the 2nd plate, and the 3rd plate of the column passing header shown in FIG. It is a partial cross-sectional view seen from the arrow IX-IX in FIG. 9 is a partial cross-sectional view showing a modified example of the first plate, the second plate, and the third plate shown in FIG. 9. It is a partial cross-sectional view for demonstrating the structure of the 1st fin, the 1st flat tube, the 2nd fin, and the 2nd flat tube in the heat exchanger which concerns on Embodiment 2.
  • FIG. It is a figure for demonstrating the 1st plate of the row passing header of the heat exchanger which concerns on Embodiment 2.
  • FIG. 2nd plate of the heat exchanger which concerns on Embodiment 2.
  • FIG. It is a front view of the heat exchanger shown in FIG. It is a side view of the heat exchanger shown in FIG.
  • It is a figure for demonstrating the 1st board of the column passing header shown in FIG. It is a figure for demonstrating the 2nd board of the column passing header shown in FIG.
  • the heat exchanger 100 As shown in FIGS. 1 to 3, the heat exchanger 100 according to the first embodiment has a first heat exchange unit 11, a second heat exchange unit 12, a first header 13, a second header 14, and a third.
  • a header (hereinafter referred to as a column passing header) 15 is provided.
  • each of the first heat exchange unit 11 and the second heat exchange unit 12 has a refrigerant flowing in the X direction (second direction) and air flowing in the Y direction. It is provided to exchange heat.
  • the first heat exchange unit 11 and the second heat exchange unit 12 are arranged side by side in the Y direction (first direction).
  • first direction the upstream side in the ventilation direction
  • the downstream side in the ventilation direction is simply referred to as the leeward side.
  • the first heat exchange unit 11 is arranged on the windward side of the second heat exchange unit 12.
  • the first heat exchange unit 11 includes a plurality of first fins 1 and a plurality of first flat tubes 2.
  • the plurality of first fins 1 extend in the Z direction and the Y direction, and are arranged side by side in the X direction.
  • Each first fin 1 is a plate fin.
  • the plurality of first flat tubes 2 are attached so as to intersect each of the plurality of first fins 1, and are arranged side by side in the Z direction.
  • the cross-sectional shape of each first flat tube 2 perpendicular to the X direction is a flat shape having a longitudinal direction and a lateral direction.
  • the longitudinal direction of each first flat tube 2 is along the Y direction.
  • each of the first flat pipes 2 exchange heat.
  • a plurality of flow paths are formed inside each first flat tube 2. Each flow path extends in the axial direction (X direction) of the first flat tube 2 and is arranged side by side in the longitudinal direction of the first flat tube 2.
  • the second heat exchange unit 12 includes a plurality of second fins 3 and a plurality of second flat tubes 4.
  • the plurality of second fins 3 extend in the Z direction and the Y direction, and are arranged side by side in the X direction.
  • Each second fin 3 is a plate fin.
  • the plurality of second flat tubes 4 are attached so as to intersect each of the plurality of second fins 3, and are arranged side by side in the Z direction.
  • the cross-sectional shape of each second flat tube 4 perpendicular to the X direction is a flat shape having a longitudinal direction and a lateral direction.
  • each of the second flat pipes 4 exchange heat.
  • a plurality of flow paths are formed inside each of the second flat tubes 4. Each flow path extends in the axial direction (X direction) of the second flat tube 4, and is arranged side by side in the longitudinal direction of the second flat tube 4.
  • each second fin 3 is arranged at a distance from each first fin 1 in the Y direction.
  • Each of the second fins 3 is arranged on the leeward side of each of the first fins 1.
  • the end portion 3A located on the leeward side of each of the second fins 3 is arranged on the leeward side of the end portion 1B located on the leeward side of each first fin 1.
  • each second flat tube 4 is arranged at a distance from each first flat tube 2 in the Y direction.
  • Each second flat tube 4 is arranged on the leeward side of each first flat tube 2.
  • the end portion of each second flat tube 4 located on the leeward side is arranged on the leeward side of the end portion located on the leeward side of each first flat tube 2.
  • each second fin 3 is arranged so as to overlap each first fin 1 when viewed from the Y direction.
  • Each second fin 3 is configured as a separate member from each first fin 1.
  • each second flat tube 4 is arranged so as not to overlap with each first flat tube 2 when viewed from the Y direction.
  • each first flat tube 2 is arranged between two second flat tubes 4 adjacent to each other in the Z direction.
  • each second flat tube 4 is arranged between two first flat tubes 2 adjacent to each other in the Z direction.
  • each first fin 1 is arranged on one side in the Y direction (eg, windward) and has a continuous portion 1D extending along the Z direction.
  • Each first fin 1 is formed with a plurality of insertion holes 1C arranged on the other side (for example, leeward side) in the Y direction from the continuous portion 1D and through which each first flat tube 2 is inserted. ..
  • the continuous portion 1D is located between the end portion 1A located on the windward side of the first fin 1 and the end portion located on the windward side of each insertion hole 1C.
  • Each insertion hole 1C opens, for example, to an end portion 1B located on the leeward side of the first fin 1. It should be noted that each insertion hole 1C does not have to be open to the end portion 1B located on the leeward side of the first fin 1.
  • each second fin 3 is arranged on one side in the Y direction (eg, windward) and has a continuous portion 3D extending along the Z direction.
  • Each second fin 3 is formed with a plurality of insertion holes 3C arranged on the other side (for example, leeward side) in the Y direction from the continuous portion 3D and through which each second flat tube 4 is inserted. ..
  • the continuous portion 3D is located between the end portion 3A located on the windward side of the second fin 3 and the end portion located on the windward side of each insertion hole 3C.
  • Each insertion hole 3C is opened, for example, at an end portion 3B located on the leeward side of the second fin 3. It should be noted that each insertion hole 3C does not have to be open to the end portion 3B located on the leeward side of the second fin 3.
  • the first header 13 is connected to the first end of each first flat tube 2 in the Y direction.
  • the first header 13 merges the refrigerant flowing out from each first flat pipe 2 or divides the refrigerant flowing into each first flat pipe 2.
  • the second header 14 is connected to the first end of each of the second flat pipes 4 in the Y direction, and merges the refrigerant flowing out of each of the second flat pipes 4 or splits the refrigerant flowing into each of the second flat pipes 4. Let me.
  • the second header 14 is arranged on the leeward side of the first header 13.
  • the column passing header 15 is connected to the second end of each first flat tube 2 and the second end of each second flat tube 4.
  • the row passing header 15 allows the refrigerant to communicate between each first flat pipe 2 and each second flat pipe 4.
  • a plurality of first insertion holes 16 through which each first flat tube 2 is inserted and a plurality of second insertion holes through which each second flat tube 4 is inserted are inserted. 17 and a plurality of communication spaces 18 connected to each of the plurality of first insertion holes 16 and each of the plurality of second insertion holes 17 are formed.
  • the first insertion holes 16 are arranged side by side in the Z direction.
  • the second insertion holes 17 are arranged side by side in the Z direction.
  • Each of the second insertion holes 17 is arranged at a distance from each of the first insertion holes 16 in the Y direction. Further, each of the second insertion holes 17 is arranged at a distance from each of the first insertion holes 16 in the Z direction.
  • each communication space 18 is arranged next to one first insertion hole 16 and the first insertion hole 16 in the Z direction, and from the first insertion hole 16. Is also provided so as to communicate with one second insertion hole 17 located above.
  • each communication space 18 has one first flat tube 2 and one first flat tube 2 arranged next to the first flat tube 2 in the Z direction and above the first flat tube 2. 2 Communicate the refrigerant with the flat pipe 4.
  • the column passing header 15 includes a first plate 15A, a second plate 15B, and a third plate 15C.
  • the first plate 15A, the second plate 15B, and the third plate 15C are laminated in the X direction.
  • the first plate 15A is arranged on the side of the first heat exchange unit 11 and the second heat exchange unit 12 with respect to the second plate 15B and the third plate 15C in the X direction.
  • the third plate 15C is arranged on the side opposite to the first heat exchange unit 11 and the second heat exchange unit 12 with respect to the first plate 15A and the second plate 15B in the X direction.
  • the second plate 15B is sandwiched between the first plate 15A and the third plate 15C in the X direction.
  • the first plate 15A, the second plate 15B, and the third plate 15C are watertightly connected and fixed to each other.
  • the materials constituting the first plate 15A, the second plate 15B, and the third plate 15C include, for example, aluminum (Al).
  • each through hole formed in the first plate 15A constitutes the first insertion hole 16 or the second insertion hole 17.
  • each first insertion hole 16 and each second insertion hole 17 are formed as through holes in the first plate 15A.
  • Each first insertion hole 16 and each second insertion hole 17 can be formed by any method, for example, by a press working method.
  • the first plate 15A is a connection plate that is watertightly connected to each of the first flat pipes 2 and each of the second flat pipes 4.
  • each communication space 18 is an internal space of each of the plurality of through holes formed in the second plate 15B.
  • each through hole formed in the second plate 15B is formed so as to overlap the entire first insertion hole 16 and one second insertion hole 17.
  • the opening ends of the through holes formed in the second plate 15B are arranged outside the opening ends of the first insertion hole 16 and the second insertion hole 17 formed in the first plate 15A. Has been done.
  • Each through hole formed in the second plate 15B can be formed by any method, for example, by a press working method.
  • the second plate 15B is a flow path plate forming a communication space 18 as a refrigerant flow path between the first flat tube 2 and the second flat tube 4.
  • one first flat tube 2 connected to one connected space 18 is in the Z direction more than one second flat tube 4 connected to the one connected space 18. It is placed in a low position in. Specifically, the uppermost portion of one first flat tube 2 connected to one connected space 18 is the lowermost portion of one second flat tube 4 connected to the one connected space 18 and in the Z direction. It is located at the same height or lower than the bottom.
  • the inner peripheral surfaces of the through holes formed in the second plate 15B have a pair of inclined surfaces that face each other in the Z direction and are inclined with respect to the X direction and the Y direction.
  • the pair of inclined surfaces are inclined so as to gradually move upward toward the leeward side.
  • the Z-direction spacing between the pair of inclined surfaces is wider than the Z-direction width of each first insertion hole 16 and the Z-direction width of each second insertion hole 17.
  • the third plate 15C is arranged on each communication space 18 on the opposite side of each first insertion hole 16 and each second insertion hole 17. One end of each connected space 18 in the X direction is closed. In the third plate 15C, no through hole is formed in the region overlapping the communication space 18 when viewed from the X direction.
  • the third plate 15C forms a so-called outer shell plate.
  • the thickness of the first plate 15A is thinner than the thickness of the second plate 15B.
  • the thickness of the third plate 15C is thinner than the thickness of the second plate 15B.
  • the thickness of the first plate 15A is, for example, thicker than the thickness of the third plate 15C.
  • the first flat tube 2 is fixed to the first plate 15A by, for example, a brazing material. In this case, after the first flat tube 2 is inserted into the first insertion hole 16 and the second flat tube 4 is inserted into the second insertion hole 17, the first flat tube 2 and the second insertion hole 17 are made of brazing material. Is fixed to the first plate 15A. After that, the second plate 15B and the third plate 15C are fixed to the first plate 15A by a brazing material. In this way, each first flat tube 2, each second flat tube 4, and the column passing header 15 are watertightly connected and fixed.
  • each of the plurality of second flat tubes 4 is arranged so as not to overlap each of the plurality of first flat tubes 2 when viewed from the Y direction. That is, in the heat exchanger 100, each of the second flat pipes 4 arranged on the leeward side is not arranged in the dead water area of each of the first flat pipes 2 arranged on the windward side. Therefore, the heat exchange performance of the heat exchanger 100 is higher than the heat exchange performance of the heat exchanger in which each first flat tube and each second flat tube are arranged at the same height position in the vertical direction. ing.
  • the row header 15 of the heat exchanger 100 has a plurality of first insertion holes 16 through which the second ends of the plurality of first flat tubes 2 are inserted, and each second end of the plurality of second flat tubes 4.
  • the first plate 15A in which the plurality of second insertion holes 17 through which the holes are inserted are formed, and the plurality of communication spaces 18 connected to each of the plurality of first insertion holes 16 and each of the plurality of second insertion holes 17 are formed. Includes the formed second plate 15B.
  • the communication space 18 for communicating the refrigerant between them is formed by different plate materials, the first plate 15A and the second plate 15B. Therefore, in the shape freedom of the first insertion hole 16, the second insertion hole 17, and the communication space 18 of the row passing header 15, the first insertion hole, the second insertion hole, and the communication space are formed from one member. Compared to the degree of freedom in the shape of the column passing header, it is enhanced.
  • each second flat tube 4 is viewed from the Y direction as compared with the row passing header in which the first insertion hole, the second insertion hole, and the communication space are formed of one member. Even when arranged so as not to overlap with the first flat tube 2, the insertion allowance of each first insertion hole 16 and each second insertion hole 17 can be easily secured, and the volume of the communication space 18 can be easily secured. Can be enlarged.
  • heat exchanger 100 including the row passing header 15 heat is compared with the heat exchanger having the row passing header in which the first insertion hole, the second insertion hole, and the communication space are formed from one member. Exchange performance can be easily enhanced.
  • the thickness of the first plate 15A is thinner than the thickness of the second plate 15B.
  • the volume of the communication space 18, each of the first insertion holes 16 and each of the second insertion holes is compared with the case where the thickness of the first plate 15A is equal to or thicker than the thickness of the second plate 15B.
  • the insertion allowance of 17 can be increased at the same time.
  • one first flat tube 2 connected to one connected space 18 is arranged at a position lower in the Z direction than one second flat tube 4 connected to the one connected space 18. Has been done.
  • Each communication space 18 may allow the refrigerant to communicate between at least one first flat pipe 2 and at least one second flat pipe 4.
  • Each communication space 18 may be provided so as to allow the refrigerant to communicate between the plurality of first flat pipes 2 and the plurality of second flat pipes 4, for example.
  • the second plate 15B may be formed with a plurality of recesses instead of the plurality of through holes.
  • each communication space 18 is composed of the internal space of the recess formed in the second plate 15B.
  • the column passing header 15 does not include the third plate 15C, and may be configured as a laminated body of the first plate 15A and the second plate 15B.
  • a plurality of recesses 15D may be formed on the surface of the third plate 15C on the side of the second plate 15B.
  • the plurality of recesses 15D are formed so as to overlap each through hole formed in the second plate 15B when viewed from the X direction.
  • the region in which the recess 15D is not formed in the third plate 15C is formed so as to overlap with the region in which the through hole is not formed in the second plate 15B when viewed from the X direction.
  • the internal space of the recess 15D formed in the third plate 15C is connected to the internal space of the through hole formed in the second plate 15B, and each communication space 18 is composed of the above two internal spaces.
  • the second plate 15B may be configured as a laminated body of a plurality of plates. As long as the total thickness of the second plate 15B is thicker than the thickness of the first plate 15A, the thickness of each plate constituting the second plate 15B may be equal to or thinner than the thickness of the first plate 15A. ..
  • the pressure resistance of the second plate 15B can be increased without impairing the moldability of the second plate 15B, as compared with the case where the second plate 15B is configured as one plate.
  • the plurality of first insertion holes 16, the plurality of second insertion holes 17, and the plurality of communication spaces 18 may be formed in one member.
  • Such a column passing header 15 can be formed by, for example, laser processing.
  • Embodiment 2 The heat exchanger according to the second embodiment has basically the same configuration as the heat exchanger 100 according to the first embodiment and exhibits the same effect, but as shown in FIGS. 11 to 13, each of them has the same structure.
  • the angle formed by the upper surface 2A with respect to the horizontal direction is, for example, 5 degrees or more and 45 degrees or less.
  • the angle formed by the upper surface 4A with respect to the horizontal direction is, for example, 5 degrees or more and 45 degrees or less.
  • the angle formed by the upper surface 2A of the first flat tube 2 with respect to the horizontal direction is, for example, equal to the angle formed by the upper surface 4A of the second flat tube 4 with respect to the horizontal direction.
  • the upper surface 2A of one first flat tube 2 connected to one connected space 18 is arranged on the same plane as, for example, the upper surface 4A of one second flat tube 4 connected to the one connected space 18. ing.
  • each of the first flat tube 2 and each second flat tube 4 has upper surfaces 2A and 4A inclined with respect to the horizontal direction, and each communication space 18 has upper surfaces 2A and 4A. Since it extends along the above-mentioned flow path from the communication space 18, the bias of the distribution of the refrigerant from the communication space 18 to each of the above-mentioned flow paths of the first flat pipe 2 is suppressed.
  • the heat exchanger 101 according to the third embodiment has basically the same configuration as the heat exchanger 100 according to the first embodiment and exhibits the same effect, but is arranged in rows as shown in FIGS. 14 to 16. It differs from the heat exchanger 100 in that the passing header 15 is divided into a plurality of parts.
  • the column passing header 15 is divided into a first column passing header 19 arranged above in the Z direction and a second column passing header 20 arranged below.
  • the plurality of first flat tubes 2 are the first flat tube 2 of the first group arranged above and the first flat tube 2 of the second group arranged below the first flat tube 2 of the first group. It is classified into pipe 2.
  • the plurality of second flat tubes 4 are the second flat tube 4 of the first group arranged above and the second flat tube 4 of the second group arranged below the second flat tube 4 of the first group. It is divided into pipe 4.
  • the first column refrigerant header 19 is connected to each second end of the first flat tube 2 of the first group and each second end of the second flat tube 4 of the first group, and is connected to each second end of the second flat tube 4 of the first group.
  • the refrigerant flowing out from each of the pipes 4 is merged, and the refrigerant flowing into each of the first flat pipes 2 of the first group is separated.
  • the second row passing header 20 is connected to each second end of the first flat tube 2 of the second group and each second end of the second flat tube 4 of the second group, and is connected to each second end of the second flat tube 4 of the second group.
  • the refrigerant flowing out from each of the pipes 4 is merged, and the refrigerant flowing into each of the first flat pipes 2 of the second group is separated.
  • the first column passing header 19 includes the first plate 19A, the second plate 19B, and the third plate 19C.
  • the first plate 19A, the second plate 19B, and the third plate 19C have the same configurations as the first plate 15A, the second plate 15B, and the third plate 15C described above.
  • the second row passing header 20 includes the first plate 20A, the second plate 20B, and the third plate 20C.
  • the first plate 20A, the second plate 20B, and the third plate 20C have the same configurations as the first plate 15A, the second plate 15B, and the third plate 15C described above.
  • the first plate 19A and the first plate 20A are configured as different plate materials, for example.
  • the second plate 19B and the second plate 20B are configured as, for example, different plate materials from each other.
  • the third plate 19C and the third plate 20C are configured as different plate materials, for example.
  • the first plate 19A and the first plate 20A may be configured as one plate material.
  • the second plate 19B and the second plate 20B may be configured as one plate material.
  • the third plate 19C and the third plate 20C may be configured as, for example, one plate material.
  • each through hole formed in the first plates 19A and 20A constitutes the first insertion hole 21 or the second insertion hole 22.
  • each first insertion hole 21 and each second insertion hole 22 are formed as through holes in the first plates 19A and 20A.
  • each through hole formed in the second plates 19B and 20B is formed so as to overlap the entire first insertion hole 21 and one second insertion hole 22.
  • the opening ends of the through holes formed in the second plates 19B and 20B are from the opening ends of the first insertion holes 21 and the second insertion holes 22 formed in the first plates 19A and 20A. Is also located on the outside.
  • one first flat tube 2 connected to one connected space 23 is in the Z direction more than one second flat tube 4 connected to the one connected space 23. It is placed in a low position in. Specifically, the uppermost portion of one first flat tube 2 connected to one connected space 18 is the lowermost portion of one second flat tube 4 connected to the one connected space 18 and in the Z direction. It is located at the same height or lower than the bottom.
  • the inner peripheral surfaces of the through holes formed in the second plates 19B and 20B have a pair of inclined surfaces that face each other in the Z direction and are inclined in the X and Y directions.
  • the pair of inclined surfaces are inclined so as to gradually move upward toward the leeward side.
  • the Z-direction spacing between the pair of inclined surfaces is wider than the Z-direction width of each first insertion hole 21 and the Z-direction width of each second insertion hole 22.
  • the third plates 19C and 20C are arranged on the opposite sides of the first insertion hole 21 and the second insertion hole 22 with respect to the communication space 23, respectively.
  • One end of the communication space 23 in the X direction is closed.
  • no through hole is formed in the region overlapping the communication space 23 when viewed from the X direction.
  • the heat exchanger 101 according to the third embodiment also allows the same modification as the heat exchanger according to the first embodiment.
  • the refrigeration cycle apparatus 200 includes any of the heat exchangers according to the first to third embodiments as an evaporator.
  • the refrigeration cycle device 200 mainly includes a compressor 111, heat exchangers 100 and 101, a heat exchanger 113, and an expansion valve 114.
  • the second header 14 is used as the inflow portion of the refrigerant
  • the first header 13 is used as the outflow portion of the refrigerant.
  • the refrigerant flows through the second header 14, the second heat exchange unit 12, the column passing header 15, the first heat exchange unit 11, and the first header 13 in the order described. ..
  • the refrigeration cycle device 200 may further include a four-way valve 112 that switches the flow direction of the refrigerant.
  • the four-way valve 112 switches between an operation mode in which the heat exchangers 100 and 101 act as an evaporator and an operation mode in which the heat exchangers 100 and 101 act as a condenser.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

Un échangeur de chaleur (100) comprend une première unité d'échangeur de chaleur (11) et une seconde unité d'échangeur de chaleur (12) alignées dans la direction Y croisant la direction de gravité. La première unité d'échangeur de chaleur comporte une pluralité de premières ailettes (1) et une pluralité de premiers tubes aplatis (2) qui sont alignés dans la direction de la gravité. La seconde unité d'échangeur de chaleur comporte une pluralité de secondes ailettes (3) et une pluralité de seconds tubes aplatis (4) qui sont alignés dans la direction de gravité. L'échangeur de chaleur comprend en outre : un premier collecteur (13) raccordé à la première extrémité de chacun de la pluralité de premiers tubes aplatis ; un deuxième collecteur (14) raccordé à la première extrémité de chacun de la pluralité de seconds tubes aplatis ; et un troisième collecteur (15) raccordé à la pluralité de premiers tubes aplatis et à la pluralité de seconds tubes aplatis. Vus depuis la direction Y, les seconds tubes aplatis sont agencés de manière à ne pas chevaucher les premiers tubes aplatis. Le troisième collecteur comprend : une première plaque (15A) dans laquelle une pluralité de premiers trous d'insertion (16) dans lesquels les secondes extrémités des premiers tubes aplatis sont insérées et une pluralité de seconds trous d'insertion (17) dans lesquels les secondes extrémités des seconds tubes aplatis sont insérés, sont formées ; et une seconde plaque (15B) dans laquelle une pluralité d'espaces de communication (18) raccordés aux premiers trous d'insertion et aux seconds trous d'insertion est formée.
PCT/JP2020/039355 2020-10-20 2020-10-20 Échangeur de chaleur et dispositif à cycle de réfrigération WO2022085067A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US18/027,236 US20230375283A1 (en) 2020-10-20 2020-10-20 Heat exchanger and refrigeration cycle apparatus
EP20958620.5A EP4235058A4 (fr) 2020-10-20 2020-10-20 Échangeur de chaleur et dispositif à cycle de réfrigération
JP2022556850A JPWO2022085067A1 (fr) 2020-10-20 2020-10-20
CN202080106198.5A CN116507871A (zh) 2020-10-20 2020-10-20 热交换器和制冷循环装置
PCT/JP2020/039355 WO2022085067A1 (fr) 2020-10-20 2020-10-20 Échangeur de chaleur et dispositif à cycle de réfrigération

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PCT/JP2020/039355 WO2022085067A1 (fr) 2020-10-20 2020-10-20 Échangeur de chaleur et dispositif à cycle de réfrigération

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WO2022085067A1 true WO2022085067A1 (fr) 2022-04-28

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WO (1) WO2022085067A1 (fr)

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JP2015113983A (ja) 2013-12-09 2015-06-22 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 熱交換器
WO2015097876A1 (fr) * 2013-12-27 2015-07-02 三菱電機株式会社 Collecteur empilé, échangeur de chaleur et climatiseur
WO2016103437A1 (fr) * 2014-12-26 2016-06-30 三菱電機株式会社 Appareil à cycle de réfrigération
WO2017126019A1 (fr) * 2016-01-19 2017-07-27 三菱電機株式会社 Échangeur de chaleur
WO2019142617A1 (fr) * 2018-01-19 2019-07-25 ダイキン工業株式会社 Échangeur de chaleur et dispositif de climatisation
WO2020044391A1 (fr) * 2018-08-27 2020-03-05 三菱電機株式会社 Échangeur de chaleur, unité d'échangeur de chaleur et dispositif à cycle de réfrigération

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WO2015045105A1 (fr) * 2013-09-27 2015-04-02 三菱電機株式会社 Échangeur de chaleur et climatiseur l'utilisant
WO2017109823A1 (fr) * 2015-12-21 2017-06-29 三菱電機株式会社 Échangeur de chaleur et dispositif à cycle de réfrigération
JP6826133B2 (ja) * 2017-01-31 2021-02-03 三菱電機株式会社 熱交換器及び冷凍サイクル装置

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JP2015113983A (ja) 2013-12-09 2015-06-22 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 熱交換器
WO2015097876A1 (fr) * 2013-12-27 2015-07-02 三菱電機株式会社 Collecteur empilé, échangeur de chaleur et climatiseur
WO2016103437A1 (fr) * 2014-12-26 2016-06-30 三菱電機株式会社 Appareil à cycle de réfrigération
WO2017126019A1 (fr) * 2016-01-19 2017-07-27 三菱電機株式会社 Échangeur de chaleur
WO2019142617A1 (fr) * 2018-01-19 2019-07-25 ダイキン工業株式会社 Échangeur de chaleur et dispositif de climatisation
WO2020044391A1 (fr) * 2018-08-27 2020-03-05 三菱電機株式会社 Échangeur de chaleur, unité d'échangeur de chaleur et dispositif à cycle de réfrigération

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See also references of EP4235058A4

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CN116507871A (zh) 2023-07-28
US20230375283A1 (en) 2023-11-23
EP4235058A1 (fr) 2023-08-30
EP4235058A4 (fr) 2024-01-10
JPWO2022085067A1 (fr) 2022-04-28

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