EP4160130A1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP4160130A1 EP4160130A1 EP21817911.7A EP21817911A EP4160130A1 EP 4160130 A1 EP4160130 A1 EP 4160130A1 EP 21817911 A EP21817911 A EP 21817911A EP 4160130 A1 EP4160130 A1 EP 4160130A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow channel
- plate fins
- heat exchanger
- tubular parts
- header
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims description 3
- 238000005219 brazing Methods 0.000 abstract description 15
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000005304 joining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—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 plate-like or laminated conduits
- F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
- F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
- F28D1/0341—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
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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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/007—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2240/00—Spacing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between 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
- F28F2270/00—Thermal insulation; Thermal decoupling
-
- 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
Definitions
- the present disclosure relates to a stack-type plate fin heat exchanger.
- PTL 1 discloses a conventional stack-type plate fin heat exchanger.
- this stack-type plate fin heat exchanger includes plate fin stacked body 102 in which plate fins 101 having flow channels through which a first fluid such as a refrigerant flows are stacked, end plates 103 stacked and disposed on both sides of plate fin stacked body 102, and inlet and outlet pipes 104 and 105 into which the first fluid flowing through the flow channels of plate fin stacked body 102 flows or from which the first fluid flows out.
- a second fluid flows between layers of plate fins 101 of plate fin stacked body 102 to allow heat to be exchanged between the first fluid and the second fluid.
- Through-holes 107 are provided at appropriate positions on a peripheral edge of header region 106 being an inlet and outlet portion of the channel of the first fluid in plate fin stacked body 102.
- the present disclosure provides a stack-type plate fin heat exchanger in which a configuration of coupling and fixing portions of header regions of plate fins is simplified, and deformation of the plate fins due to insufficient coupling and fixing strength is suppressed.
- the stack-type plate fin heat exchanger according to the present disclosure includes tubular parts provided at appropriate positions on peripheral edges of the header region of the plate fin.
- the tubular parts of the adjacent plate fins are fitted to each other to cause the header regions of the plate fins to be coupled and fixed.
- the stack-type plate fin heat exchanger described in Patent Literature 1 is a heat exchanger proposed by the inventors of the present invention.
- reinforcing plate 108 is placed on the outer surface of header regions 106, and the portions of header regions 106 are coupled and fixed together by bolts 109.
- the present disclosure provides a heat exchanger in which a configuration of coupling and fixing portions of header regions of plate fins is simplified and deformation of the plate fins in the portions of the header regions is suppressed to improve reliability.
- heat exchanger according to the present disclosure is not limited to configurations of a stack-type plate fin heat exchanger described in the following exemplary embodiment, but includes configurations of heat exchangers equivalent to a technical idea described in the following exemplary embodiment.
- Fig. 1 is a perspective view showing an appearance of stack-type plate fin heat exchanger (hereinafter, simply referred to as heat exchanger) 1 according to the first exemplary embodiment
- Fig. 2 is an enlarged perspective view showing header regions of the stack-type plate fin heat exchanger
- Fig. 3 is an enlarged sectional view showing the header regions of the stack-type plate fin heat exchanger
- Fig. 4 is an enlarged sectional view showing a main part of the header regions of the stack-type plate fin heat exchanger
- Fig. 5 is an enlarged sectional view of a portion indicated by A in Fig. 4
- Fig. 6 is an exploded perspective view of plate fins of the stack-type plate fin heat exchanger according to the first exemplary embodiment.
- heat exchanger 1 As shown in Figs. 1 to 6 , heat exchanger 1 according to the present exemplary embodiment includes inlet pipe (inlet port header) 2, plate fin stacked body 4 including a plurality of plate fins 3 that are stacked together, and outlet pipe (outlet port header) 5 allowing the refrigerant having flown through flow channels provided in plate fins 3 to be discharged.
- the refrigerant as the first fluid flows into the inlet pipe (inlet port header) 2.
- the plurality of plate fins 3 each have a rectangular plate shape.
- End plates 6a and 6b are respectively provided on both sides (upper side and lower side in Fig. 1 ) in the stacking direction of plate fin stacked body 4.
- the shape of end plates 6a and 6b and the shape of plate fins 3 are substantially the same in plan view.
- End plates 6a and 6b are each made of a plate material having rigidity, and are formed by, for example, grinding and machining metal material, such as aluminum, an aluminum alloy, or stainless steel.
- end plates 6a and 6b and the plurality of plate fins 3 are stacked and joined integrally by brazing. End plates 6a and 6b and the plurality of plate fins 3 may be joined by other heat-resistant fixing methods such as a method using a chemical joining member.
- plate fins 3 are coupled and fixed at both ends in the longitudinal direction of plate fin stacked body 4.
- a configuration of coupling and fixing plate fin stacked body 4 is described later.
- plate fin 3 is formed by joining a pair of long plates 3a and 3b by brazing.
- the pair of plates 3a and 3b has a recessed groove serving as flow channel 7.
- inlet header flow channel 9 and outlet header flow channel 10 connected to flow channel 7 via communication channel 8 are formed.
- Flow channel 7 provided in plates 3a and 3b are disposed along the longitudinal direction of plates 3a and 3b.
- Flow channel 7 is configured to make a U-turn at the ends of plates 3a and 3b.
- inlet header flow channel 9 connected to outgoing flow channel 7a and outlet header flow channel 10 connected to return flow channel 7b are collectively disposed.
- Slit 11 that suppresses heat transfer between the first fluid flowing through outgoing flow channel 7a and the first fluid flowing through return flow channel 7b is disposed between outgoing flow channel 7a and return flow channel 7b.
- plate fins 3 are stacked together with end plates 6a and 6b and brazed to form plate fin stacked body 4.
- Each of inlet pipe 2 and outlet pipe 5 are connected to a corresponding one of inlet header flow channel 9 and outlet header flow channel 10 of plate fin stacked body 4.
- through-holes 12 are provided in a peripheral edge of header region X where inlet header flow channel 9 and outlet header flow channel 10 of plate fin 3 are located (see, for example, Figs. 3 and 6 ).
- tubular part 13 is disposed in an erected manner in a portion of each of the pair of plates 3a and 3b provided with through-hole 12.
- through-hole 12 is disposed inside the wall surface constituting tubular part 13.
- Tubular parts 13 are disposed protruding outward from each of the pair of plates 3a and 3b.
- tubular part 13 is fitted to tubular part 13 of another plate fin 3 adjacent in the stacking direction.
- header regions X see Fig. 1 and others
- Tubular part 13 is disposed protrudingly on the surface opposite to the brazed surface of the plates 3a and 3b to which brazing material is applied in advance.
- header regions X of plate fin stacked body 4 formed by stacking the plurality of plate fins 3 are coupled and fixed together.
- tubular parts 13 are disposed at the end of each plate fin 3 on the side opposite to header region X. By fitting and brazing tubular parts 13 to each other, the ends of plate fin stacked body 4 formed by stacking plate fins 3 are coupled and fixed together.
- tubular parts 13 each erected on through-hole 12 are disposed surrounding inlet header flow channel 9 and outlet header flow channel 10.
- each of tubular parts 13 is provided on a line connecting the approximate centers of inlet header flow channel 9 and outlet header flow channel 10.
- tubular part 13 is provided to overlap, in at least a part of the outer periphery of tubular part 13, on a line connecting the approximate centers of outlet header flow channel 10 and outlet header flow channel 10.
- a fitting clearance between tubular parts 13 of adjacent plate fins 3 is less than or equal to 0.2 mm, preferably 0.2 mm to 0.1 mm.
- tubular part 13 among tubular parts 13 to be fitted to each other that is, in the example shown in Fig. 6 , tubular part 13 of upper plate 3a among the pair of plates 3a and 3b has a tapered shape.
- heat exchanger 1 When heat exchanger 1 according to the present exemplary embodiment is, for example, incorporated into a refrigeration system and used under evaporation conditions, the refrigerant in a gas-liquid two-phase state that is the first fluid flows from inlet pipe 2 into inlet header flow channel 9 of plate fin stacked body 4.
- the refrigerant having flowed into inlet header flow channel 9 flows to a group of outgoing flow channels 7a through communication channels 8 of plate fins 3.
- the refrigerant having flowed to the group of outgoing flow channels 7a of each plate fin 3 makes a U-turn and flows from outlet pipe 5 in a gas state to the refrigerant circuit of the refrigeration system through return flow channel 7b. While flowing through outgoing flow channel 7a, the refrigerant exchanges heat with the air (second fluid) passing between plate fins 3 of plate fin stacked body 4.
- heat exchanger 1 because the opening area of inlet header flow channel 9 is larger than the opening areas of other flow channels, stress concentrates on the portion of header regions X where inlet header flow channel 9 is disposed, and the portions of the header regions X tend to be greatly deformed in the stacking direction.
- heat exchanger 1 according to the present exemplary embodiment because the portions of header regions X are firmly coupled and fixed together, deformation of the portions of header regions X is suppressed, and thus heat exchanger 1 according to the present exemplary embodiment can be a highly reliable heat exchanger.
- tubular parts 13 are provided in header region X of each of plates 3a and 3b constituting plate fin 3.
- Tubular parts 13 of adjacent plate fins 3 are fitted and brazed to each other.
- the header regions X of adjacent plate fins 3 are thus coupled and fixed together
- tubular parts 13 of adjacent plate fins 3 are fitted to each other, and tubular parts 13 are connected in a columnar shape in the stacking direction. Further, because tubular parts 13 are joined to each other by brazing material, the joining strength is further increased by the solidified brazing material, and a more robust fixing structure is obtained. Therefore, the coupling strength of the portions of the header regions is greatly improved, the rigidity of the plate fin stacked body is improved, and a highly reliable heat exchanger can be obtained.
- the configuration can be simplified as compared with the conventional heat exchanger using the reinforcing plate, the bolts, and the like.
- header regions X can be coupled and fixed together by just inserting a guide-pin jig into through-hole 12, stacking and directly putting plates 3a and 3b in a melting furnace, and brazing plates 3a and 3b.
- the number of man-hours can be reduced, the man-hours being required in the conventional configuration to assemble using the reinforcing plate and the bolts separately from the brazing work, and as a result, the workability at the time of manufacturing is greatly improved. Therefore, productivity of the heat exchanger is greatly improved.
- tubular parts 13 are disposed surrounding each of inlet header flow channel 9 and outlet header flow channel 10. Therefore, even when a large amount of the first fluid flows in a concentrated manner to cause a high pressure to be applied around inlet header flow channel 9 and outlet header flow channel 10 of each of plates 3a and 3b, that is, at the portion of header region X, the pressure resistance around inlet header flow channel 9 and the pressure resistance around outlet header flow channel 10 can respectively be substantially uniformly improved to enhance the pressure resistance of the entire portion of header region X.
- each tubular part 13 is provided such that at least a part of the outer periphery of tubular part 13 overlaps on the line connecting the approximate centers of inlet header flow channel 9 and outlet header flow channel 10. Therefore, the portions of header regions X are coupled together by tubular parts 13 in the vicinity of the line connecting the substantial centers of the inlet header flow channel 9 and outlet header flow channel 10, and the pressure resistance of the portions of header regions X can be more uniformly and reliably improved to prevent deformation of plate fin 3.
- tubular parts 13 provided in the pair of plates 3a and 3b is tapered.
- tubular parts 13 reliably come into contact with each other at least at a part thereof, and thus tubular parts 13 can be reliably fixed to each other with the brazing material. Therefore, the coupling strength of the portions of header regions X becomes strong, and the pressure resistance can be more reliably improved.
- the fitting clearance between tubular parts 13 to be fitted is set to less than or equal to 0.2 mm, and in the example of the present exemplary embodiment, is set to be in the range of 0.2 mm to 0.1 mm.
- the first exemplary embodiment has been described as an example of the techniques in the present disclosure.
- the technique in the present disclosure is not limited thereto, and can also be applied to exemplary embodiments subjected to alteration, substitution, addition, omission and the like.
- new exemplary embodiments can be made by combining constituent elements described in the first exemplary embodiment.
- the heat exchanger is exemplified, in which flow channel 7 through which the first fluid flows makes a U-turn and inlet header flow channel 9 connected to outgoing flow channel 7a and outlet header flow channel 10 connected to return flow channel 7b are collectively provided on one end side of plate fin 3.
- flow paths 7 may be linearly disposed and not make a U-turn, and inlet header flow channel 9 may be provided on one end side of plate fin 3 and outlet header flow channel 10 may be provided on the other end side of plate fin 3.
- tubular parts 13 may be provided surrounding each of inlet header flow channel 9 and outlet header flow channel 10, and then plate fins 3 may be coupled and fixed to each other.
- tubular parts 13 provided on the pair of plates 3a and 3b constituting plate fin 3 are described as tubular parts having a circular section.
- the sectional shape of each of the tubular parts is not limited to a circular shape, and may be any shape such as a polygonal shape including a hexagonal shape or an elliptical shape.
- the tubular parts may each be a tubular part having a discontinuous wall surface with a cut, such as tubular part 13a provided in the middle of slit 11 shown in Fig. 6 .
- tubular parts 13 of adjacent plate fins 3 are tapered.
- neither of tubular parts 13 of adjacent plate fins 3 may be tapered.
- both of tubular parts 13 of adjacent plate fins 3 may be tapered.
- taper angles of two tubular parts 13 to be fitted are preferably slightly different from each other.
- a distal end of one of tubular parts 13 of adjacent plate fins 3 may be subjected to nesting processing.
- the heat exchanger includes a plate fin stacked body in which the plate fins having the flow channels through which the first fluid such as the refrigerant flows are stacked, the end plates respectively stacked and disposed on both sides of the plate fin stacked body, and inlet header flow channel and outlet header flow channel through which the first fluid flowing through the flow channels of the plate fin stacked body passes.
- the second fluid flows between layers of the plate fins of the plate fin stacked body to allow heat to be exchanged between the first fluid and the second fluid.
- the plate fin includes the pair of plates brazed to each other, and the pair of plates is provided with the flow channel therebetween.
- the tubular part is provided at an appropriate position on the periphery of the portion of the header region of the plate fin provided with the inlet header flow channel and the outlet header flow channel connected to the flow channel.
- the tubular parts of the adjacent plate fins are fitted to each other.
- the tubular parts of the adjacent plate fins are fitted to each other by brazing to couple and fix the header regions of the plate fins together.
- the coupling strength of the portions of the header regions can be improved with a simple configuration without using the reinforcing plate, bolts, and the like, the rigidity of the plate fin stacked body can be improved, and a highly reliable heat exchanger can be obtained.
- the tubular parts are preferably provided surrounding the inlet header flow channel and the outlet header flow channel. As a result, the pressure resistance of the portions of the header regions can be more reliably improved.
- At least one of the tubular parts provided on the pair of plates preferably has a tapered shape or a shape obtained by being subjected to nesting processing. Therefore, the bonding of the tubular parts becomes more reliable and the pressure resistance in the portions of the header regions can be more reliably improved.
- the fitting clearance between the tubular parts disposed in the adjacent plate fins and fitted to each other is preferably set to less than or equal to 0.2 mm. Therefore, the bonding of the tubular parts becomes more reliable and the pressure resistance in the portions of the header regions can be still more reliably improved.
- stack-type plate fin heat exchanger according to the present disclosure has been described above using the exemplary embodiments, but the present disclosure is not limited thereto. That is, the exemplary embodiments disclosed herein is illustrative in all points and not restrictive, the scope of the present disclosure is shown by the claims, and all meanings equivalent to the claims and all modifications within the claims are included.
- the heat exchanger of the present disclosure can improve the coupling strength of the portions of the header regions of the plate fins with a simple configuration, improve the rigidity of the plate fin stacked body, and provide a highly reliable heat exchanger. Accordingly, the present invention can be applied to a wide range of applications including heat exchangers for domestic and industrial air conditioners and various refrigerating devices, and thus shows great industrial value.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- The present disclosure relates to a stack-type plate fin heat exchanger.
-
PTL 1 discloses a conventional stack-type plate fin heat exchanger. As shown inFigs. 7 and 8 , this stack-type plate fin heat exchanger includes plate fin stackedbody 102 in whichplate fins 101 having flow channels through which a first fluid such as a refrigerant flows are stacked,end plates 103 stacked and disposed on both sides of plate fin stackedbody 102, and inlet andoutlet pipes body 102 flows or from which the first fluid flows out. A second fluid flows between layers ofplate fins 101 of plate fin stackedbody 102 to allow heat to be exchanged between the first fluid and the second fluid. Through-holes 107 are provided at appropriate positions on a peripheral edge ofheader region 106 being an inlet and outlet portion of the channel of the first fluid in plate fin stackedbody 102. By passingbolts 109 through through-holes 107 with reinforcingplate 108 interposed therebetween, portions of the header regions ofplate fins 101 are connected and fixed together. - PTL 1:
WO 2018/074342 A - The present disclosure provides a stack-type plate fin heat exchanger in which a configuration of coupling and fixing portions of header regions of plate fins is simplified, and deformation of the plate fins due to insufficient coupling and fixing strength is suppressed.
- The stack-type plate fin heat exchanger according to the present disclosure includes tubular parts provided at appropriate positions on peripheral edges of the header region of the plate fin. The tubular parts of the adjacent plate fins are fitted to each other to cause the header regions of the plate fins to be coupled and fixed.
-
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Fig. 1 is a perspective view showing an external appearance of a stack-type plate fin heat exchanger according to a first exemplary embodiment. -
Fig. 2 is an enlarged perspective view showing header regions of the heat exchanger. -
Fig. 3 is an enlarged sectional view showing the header regions of the heat exchanger. -
Fig. 4 is an enlarged sectional view showing a main part of the header regions of the heat exchanger. -
Fig. 5 is an enlarged sectional view of a portion indicated by A inFig. 4 . -
Fig. 6 is an exploded perspective view of plate fins of the heat exchanger according to the first exemplary embodiment. -
Fig. 7 is a perspective view of a conventional stack-type plate fin heat exchanger. -
Fig. 8 is a perspective view showing the conventional stack-type plate fin heat exchanger in a state before the header regions are coupled and fixed together. - The stack-type plate fin heat exchanger described in
Patent Literature 1 is a heat exchanger proposed by the inventors of the present invention. At the time when the inventors arrived at the present disclosure, in the heat exchanger described inPatent Literature 1, becauseheader regions 106 where the first fluid such as the refrigerant flowing through the flow channel gathers are easily deformed by the pressure of the first fluid, reinforcingplate 108 is placed on the outer surface ofheader regions 106, and the portions ofheader regions 106 are coupled and fixed together bybolts 109. As a result of intensive studies by the inventors, it has been found that because reinforcingplate 108, thebolts 109, and the like are required in the conventional configuration, there is a problem that the configuration is complicated, the weight of the entire heat exchanger increases, and assembling work for reinforcingplate 108 andbolts 109 is required, and productivity decreases. - In view of these problems, the inventors of the present disclosure have made the subject matter of the present disclosure to solve the problems.
- The present disclosure provides a heat exchanger in which a configuration of coupling and fixing portions of header regions of plate fins is simplified and deformation of the plate fins in the portions of the header regions is suppressed to improve reliability.
- Hereinafter, an exemplary embodiment is described in detail with reference to the accompanying drawings. It is noted that a more detailed description than needed may be omitted. For example, detailed description of already well-known matters and repeated description of substantially the same configuration are omitted in some cases. This is to avoid an unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.
- Note that the heat exchanger according to the present disclosure is not limited to configurations of a stack-type plate fin heat exchanger described in the following exemplary embodiment, but includes configurations of heat exchangers equivalent to a technical idea described in the following exemplary embodiment.
- The exemplary embodiment described below shows an example of the present disclosure, and configurations, functions, and operations described in the present exemplary embodiment are mere examples and do not limit the present disclosure.
- Hereinafter, the heat exchanger according to a first exemplary embodiment of the present disclosure is described with reference to
Figs. 1 to 6 . -
Fig. 1 is a perspective view showing an appearance of stack-type plate fin heat exchanger (hereinafter, simply referred to as heat exchanger) 1 according to the first exemplary embodiment,Fig. 2 is an enlarged perspective view showing header regions of the stack-type plate fin heat exchanger,Fig. 3 is an enlarged sectional view showing the header regions of the stack-type plate fin heat exchanger,Fig. 4 is an enlarged sectional view showing a main part of the header regions of the stack-type plate fin heat exchanger,Fig. 5 is an enlarged sectional view of a portion indicated by A inFig. 4 , andFig. 6 is an exploded perspective view of plate fins of the stack-type plate fin heat exchanger according to the first exemplary embodiment. - As shown in
Figs. 1 to 6 ,heat exchanger 1 according to the present exemplary embodiment includes inlet pipe (inlet port header) 2, plate fin stackedbody 4 including a plurality ofplate fins 3 that are stacked together, and outlet pipe (outlet port header) 5 allowing the refrigerant having flown through flow channels provided inplate fins 3 to be discharged. The refrigerant as the first fluid flows into the inlet pipe (inlet port header) 2. In the example of the present exemplary embodiment, the plurality ofplate fins 3 each have a rectangular plate shape. -
End plates Fig. 1 ) in the stacking direction of plate fin stackedbody 4. The shape ofend plates plate fins 3 are substantially the same in plan view.End plates - Note that
end plates plate fins 3 are stacked and joined integrally by brazing.End plates plate fins 3 may be joined by other heat-resistant fixing methods such as a method using a chemical joining member. - Further, in the present exemplary embodiment, in plate fin stacked
body 4 formed bystacking plate fins 3,plate fins 3 are coupled and fixed at both ends in the longitudinal direction of plate fin stackedbody 4. A configuration of coupling and fixing plate fin stackedbody 4 is described later. - Note that, as shown in
Fig. 6 ,plate fin 3 is formed by joining a pair oflong plates plates flow channel 7. By joining the pair ofplates header flow channel 9 and outletheader flow channel 10 connected toflow channel 7 viacommunication channel 8 are formed.Flow channel 7 provided inplates plates Flow channel 7 is configured to make a U-turn at the ends ofplates plates header flow channel 9 connected tooutgoing flow channel 7a and outletheader flow channel 10 connected toreturn flow channel 7b are collectively disposed.Slit 11 that suppresses heat transfer between the first fluid flowing throughoutgoing flow channel 7a and the first fluid flowing throughreturn flow channel 7b is disposed betweenoutgoing flow channel 7a andreturn flow channel 7b. As described above,plate fins 3 are stacked together withend plates body 4. Each ofinlet pipe 2 andoutlet pipe 5 are connected to a corresponding one of inletheader flow channel 9 and outletheader flow channel 10 of plate fin stackedbody 4. - Next, a configuration for coupling and fixing both ends of plate fin stacked
body 4 is described. Inplate fin 3 of the present exemplary embodiment, through-holes 12 are provided in a peripheral edge of header region X where inletheader flow channel 9 and outletheader flow channel 10 ofplate fin 3 are located (see, for example,Figs. 3 and6 ). As shown inFig. 6 ,tubular part 13 is disposed in an erected manner in a portion of each of the pair ofplates hole 12. In other words, through-hole 12 is disposed inside the wall surface constitutingtubular part 13.Tubular parts 13 are disposed protruding outward from each of the pair ofplates Figs. 4 and5 ,tubular part 13 is fitted totubular part 13 of anotherplate fin 3 adjacent in the stacking direction. By brazingtubular parts 13 ofadjacent plate fins 3 to each other, header regions X (seeFig. 1 and others) ofadjacent plate fins 3 are coupled and fixed to each other.Tubular part 13 is disposed protrudingly on the surface opposite to the brazed surface of theplates tubular parts 13 ofadjacent plate fins 3 to each other and causing the brazing material to be melted and solidified on the brazed surface on the inner peripheral surface of any one oftubular parts 13 to integratetubular parts 13 to each other, header regions X of plate fin stackedbody 4 formed by stacking the plurality ofplate fins 3 are coupled and fixed together. - Although not illustrated, similar through-
holes 12 are also provided andtubular parts 13 are disposed at the end of eachplate fin 3 on the side opposite to header region X. By fitting and brazingtubular parts 13 to each other, the ends of plate fin stackedbody 4 formed by stackingplate fins 3 are coupled and fixed together. - As shown in
Fig. 6 ,tubular parts 13 each erected on through-hole 12 are disposed surrounding inletheader flow channel 9 and outletheader flow channel 10. In the example shown inFig. 6 , each oftubular parts 13 is provided on a line connecting the approximate centers of inletheader flow channel 9 and outletheader flow channel 10. Specifically,tubular part 13 is provided to overlap, in at least a part of the outer periphery oftubular part 13, on a line connecting the approximate centers of outletheader flow channel 10 and outletheader flow channel 10. A fitting clearance betweentubular parts 13 ofadjacent plate fins 3 is less than or equal to 0.2 mm, preferably 0.2 mm to 0.1 mm. - Note that, in the example of the present exemplary embodiment, at least one
tubular part 13 amongtubular parts 13 to be fitted to each other, that is, in the example shown inFig. 6 ,tubular part 13 ofupper plate 3a among the pair ofplates - Functional effect of
heat exchanger 1 configured as described above is described below. - When
heat exchanger 1 according to the present exemplary embodiment is, for example, incorporated into a refrigeration system and used under evaporation conditions, the refrigerant in a gas-liquid two-phase state that is the first fluid flows frominlet pipe 2 into inletheader flow channel 9 of plate fin stackedbody 4. The refrigerant having flowed into inletheader flow channel 9 flows to a group ofoutgoing flow channels 7a throughcommunication channels 8 ofplate fins 3. The refrigerant having flowed to the group ofoutgoing flow channels 7a of eachplate fin 3 makes a U-turn and flows fromoutlet pipe 5 in a gas state to the refrigerant circuit of the refrigeration system throughreturn flow channel 7b. While flowing throughoutgoing flow channel 7a, the refrigerant exchanges heat with the air (second fluid) passing betweenplate fins 3 of plate fin stackedbody 4. - At this time, because heat transfer between the refrigerant flowing through the group of
outgoing flow channels 7a and the refrigerant flowing throughreturn flow channel 7b is suppressed byslit 11, high heat exchange efficiency is exhibited. In the case whereheat exchanger 1 is used as a condenser, the flow of the first fluid is opposite to that when theheat exchanger 1 is used as an evaporator. That is,inlet pipe 2 and inletheader flow channel 9 respectively serve as an outlet pipe and an outlet header flow channel, andoutlet pipe 5 and outletheader flow channel 10 respectively serve as an inlet pipe and an inlet header flow channel. - In
heat exchanger 1, because the opening area of inletheader flow channel 9 is larger than the opening areas of other flow channels, stress concentrates on the portion of header regions X where inletheader flow channel 9 is disposed, and the portions of the header regions X tend to be greatly deformed in the stacking direction. However, inheat exchanger 1 according to the present exemplary embodiment, because the portions of header regions X are firmly coupled and fixed together, deformation of the portions of header regions X is suppressed, and thusheat exchanger 1 according to the present exemplary embodiment can be a highly reliable heat exchanger. - More specifically, in
heat exchanger 1 of the present exemplary embodiment,tubular parts 13 are provided in header region X of each ofplates plate fin 3.Tubular parts 13 ofadjacent plate fins 3 are fitted and brazed to each other. The header regions X ofadjacent plate fins 3 are thus coupled and fixed together - Therefore,
tabular parts 13 ofadjacent plate fins 3 are fitted to each other, andtubular parts 13 are connected in a columnar shape in the stacking direction. Further, becausetubular parts 13 are joined to each other by brazing material, the joining strength is further increased by the solidified brazing material, and a more robust fixing structure is obtained. Therefore, the coupling strength of the portions of the header regions is greatly improved, the rigidity of the plate fin stacked body is improved, and a highly reliable heat exchanger can be obtained. - In addition, because a reinforcing plate, bolts, and the like for securing the coupling strength at the portions of the header regions as in the conventional art are not required, the configuration can be simplified as compared with the conventional heat exchanger using the reinforcing plate, the bolts, and the like.
- In addition, because workability at the time of manufacturing the heat exchanger is improved, productivity can be improved. That is, according to the configuration of the present exemplary embodiment, header regions X can be coupled and fixed together by just inserting a guide-pin jig into through-
hole 12, stacking and directly puttingplates brazing plates - In the heat exchanger of the present exemplary embodiment,
tubular parts 13 are disposed surrounding each of inletheader flow channel 9 and outletheader flow channel 10. Therefore, even when a large amount of the first fluid flows in a concentrated manner to cause a high pressure to be applied around inletheader flow channel 9 and outletheader flow channel 10 of each ofplates header flow channel 9 and the pressure resistance around outletheader flow channel 10 can respectively be substantially uniformly improved to enhance the pressure resistance of the entire portion of header region X. In the example of the present exemplary embodiment, eachtubular part 13 is provided such that at least a part of the outer periphery oftubular part 13 overlaps on the line connecting the approximate centers of inletheader flow channel 9 and outletheader flow channel 10. Therefore, the portions of header regions X are coupled together bytubular parts 13 in the vicinity of the line connecting the substantial centers of the inletheader flow channel 9 and outletheader flow channel 10, and the pressure resistance of the portions of header regions X can be more uniformly and reliably improved to prevent deformation ofplate fin 3. - In the example of the present exemplary embodiment, at least one of
tubular parts 13 provided in the pair ofplates tubular parts 13 fitted to each other,tubular parts 13 reliably come into contact with each other at least at a part thereof, and thustubular parts 13 can be reliably fixed to each other with the brazing material. Therefore, the coupling strength of the portions of header regions X becomes strong, and the pressure resistance can be more reliably improved. - In addition, the fitting clearance between
tubular parts 13 to be fitted is set to less than or equal to 0.2 mm, and in the example of the present exemplary embodiment, is set to be in the range of 0.2 mm to 0.1 mm. As a result, in betweentubular parts 13, the melted brazing material substantially uniformly goes around the entire circumference oftubular parts 13 and is solidified. Therefore, the strength of a joint betweentubular parts 13 including the brazing material is reliably improved, and the pressure resistance of the portions of header regions X can be further reliably improved. - As described above, the first exemplary embodiment has been described as an example of the techniques in the present disclosure. However, the technique in the present disclosure is not limited thereto, and can also be applied to exemplary embodiments subjected to alteration, substitution, addition, omission and the like. In addition, new exemplary embodiments can be made by combining constituent elements described in the first exemplary embodiment.
- Accordingly, hereinafter, another exemplary embodiment is exemplified.
- In the first exemplary embodiment, the heat exchanger is exemplified, in which flow
channel 7 through which the first fluid flows makes a U-turn and inletheader flow channel 9 connected tooutgoing flow channel 7a and outletheader flow channel 10 connected to returnflow channel 7b are collectively provided on one end side ofplate fin 3. However,flow paths 7 may be linearly disposed and not make a U-turn, and inletheader flow channel 9 may be provided on one end side ofplate fin 3 and outletheader flow channel 10 may be provided on the other end side ofplate fin 3. Further,tubular parts 13 may be provided surrounding each of inletheader flow channel 9 and outletheader flow channel 10, and then platefins 3 may be coupled and fixed to each other. - In the first exemplary embodiment,
tubular parts 13 provided on the pair ofplates plate fin 3 are described as tubular parts having a circular section. However, the sectional shape of each of the tubular parts is not limited to a circular shape, and may be any shape such as a polygonal shape including a hexagonal shape or an elliptical shape. Note that the tubular parts may each be a tubular part having a discontinuous wall surface with a cut, such astubular part 13a provided in the middle ofslit 11 shown inFig. 6 . - In the first exemplary embodiment, it has been exemplified that at least one of
tubular parts 13 ofadjacent plate fins 3 is tapered. However, neither oftubular parts 13 ofadjacent plate fins 3 may be tapered. Alternatively, both oftubular parts 13 ofadjacent plate fins 3 may be tapered. In this case, taper angles of twotubular parts 13 to be fitted are preferably slightly different from each other. Alternatively, although not illustrated, a distal end of one oftubular parts 13 ofadjacent plate fins 3 may be subjected to nesting processing. - As described above, the heat exchanger according to the present disclosure includes a plate fin stacked body in which the plate fins having the flow channels through which the first fluid such as the refrigerant flows are stacked, the end plates respectively stacked and disposed on both sides of the plate fin stacked body, and inlet header flow channel and outlet header flow channel through which the first fluid flowing through the flow channels of the plate fin stacked body passes. The second fluid flows between layers of the plate fins of the plate fin stacked body to allow heat to be exchanged between the first fluid and the second fluid. The plate fin includes the pair of plates brazed to each other, and the pair of plates is provided with the flow channel therebetween. The tubular part is provided at an appropriate position on the periphery of the portion of the header region of the plate fin provided with the inlet header flow channel and the outlet header flow channel connected to the flow channel. The tubular parts of the adjacent plate fins are fitted to each other. In the present exemplary embodiment, the tubular parts of the adjacent plate fins are fitted to each other by brazing to couple and fix the header regions of the plate fins together.
- As a result, the coupling strength of the portions of the header regions can be improved with a simple configuration without using the reinforcing plate, bolts, and the like, the rigidity of the plate fin stacked body can be improved, and a highly reliable heat exchanger can be obtained.
- The tubular parts are preferably provided surrounding the inlet header flow channel and the outlet header flow channel. As a result, the pressure resistance of the portions of the header regions can be more reliably improved.
- In addition, at least one of the tubular parts provided on the pair of plates preferably has a tapered shape or a shape obtained by being subjected to nesting processing. Therefore, the bonding of the tubular parts becomes more reliable and the pressure resistance in the portions of the header regions can be more reliably improved.
- Note that the fitting clearance between the tubular parts disposed in the adjacent plate fins and fitted to each other is preferably set to less than or equal to 0.2 mm. Therefore, the bonding of the tubular parts becomes more reliable and the pressure resistance in the portions of the header regions can be still more reliably improved.
- The stack-type plate fin heat exchanger according to the present disclosure has been described above using the exemplary embodiments, but the present disclosure is not limited thereto. That is, the exemplary embodiments disclosed herein is illustrative in all points and not restrictive, the scope of the present disclosure is shown by the claims, and all meanings equivalent to the claims and all modifications within the claims are included.
- The heat exchanger of the present disclosure can improve the coupling strength of the portions of the header regions of the plate fins with a simple configuration, improve the rigidity of the plate fin stacked body, and provide a highly reliable heat exchanger. Accordingly, the present invention can be applied to a wide range of applications including heat exchangers for domestic and industrial air conditioners and various refrigerating devices, and thus shows great industrial value.
-
- 1
- heat exchanger
- 2
- inlet pipe
- 3
- plate fin
- 3a, 3b
- plate
- 4
- plate fin stacked body
- 5
- outlet pipe
- 6a, 6b
- end plate
- 7
- flow channel
- 7a
- outgoing flow channel
- 7b
- return flow channel
- 8
- communication channel
- 9
- inlet header flow channel
- 10
- outlet header flow channel
- 11
- slit
- 12
- through-hole
- 13, 13a
- tubular part
Claims (7)
- A heat exchanger comprising:a plate fin stacked body including a plurality of plate fins stacked, the plurality of plate fins each having a flow channel through which a first fluid flows;end plates respectively disposed on both sides of the plate fin stacked body in a stacking direction of the plurality of plate fins;an inlet header flow channel through which the first fluid flows into the flow channel; andan outlet header flow channel through which the first fluid flows out from the flow channel,whereinthe plurality of plate fins each includea pair of plates brazed to each other to provide the flow channel between the pair of plates, andtubular parts each disposed in a portion of a header region of the heat exchanger and protruding outward from a corresponding one of the pair of plates, the header region being a region where the inlet header flow channel and the outlet header flow channel are disposed, andthe plurality of plate fins include adjacent plate fins whose tubular parts are fitted to each other.
- The heat exchanger according to Claim 1, wherein the tubular parts of each of the plurality of plate fins are disposed surrounding at least one of the inlet header flow channel and the outlet header flow channel in plan view of each of the plurality of plate fins.
- The heat exchanger according to Claim 1 or 2, wherein at least one of the tubular parts of each of the plurality of plate fins has a tapered shape or a shape obtained by nesting processing.
- The heat exchanger according to any one of Claims 1 to 3, wherein the adjacent plate fins among the plurality of plate fins has a fitting clearance between the tubular parts of less than or equal to 0.2 mm.
- The heat exchanger according to any one of Claims 1 to 4, wherein the tubular parts of the adjacent plate fins among the plurality of plate fins are brazed to each other to connect portions of header regions of the adjacent plate fins.
- The heat exchanger according to any one of Claims 1 to 5, wherein the tubular parts protruding outward from the corresponding one of the pair of plates are disposed at a same position in plan view of each of the plurality of plate fins.
- The heat exchanger according to any one of Claims 1 to 6, wherein the plurality of plate fins that are stacked together have a second fluid flowing between the plurality of plate fins to allow heat to be exchanged between the first fluid and the second fluid.
Applications Claiming Priority (2)
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JP2020095828A JP7538991B2 (en) | 2020-06-02 | 2020-06-02 | Heat exchanger |
PCT/JP2021/004504 WO2021245986A1 (en) | 2020-06-02 | 2021-02-08 | Heat exchanger |
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EP4160130A1 true EP4160130A1 (en) | 2023-04-05 |
EP4160130A4 EP4160130A4 (en) | 2023-11-15 |
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EP21817911.7A Pending EP4160130A4 (en) | 2020-06-02 | 2021-02-08 | Heat exchanger |
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EP (1) | EP4160130A4 (en) |
JP (1) | JP7538991B2 (en) |
CN (1) | CN115885150A (en) |
WO (1) | WO2021245986A1 (en) |
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EP4417926A1 (en) * | 2023-02-15 | 2024-08-21 | Valeo Systemes Thermiques | Fluid distribution module for a thermal management system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2216539B1 (en) * | 1973-02-02 | 1976-09-10 | Chaffoteaux Et Maury | |
JPH09280778A (en) * | 1996-04-16 | 1997-10-31 | Showa Alum Corp | Laminated type heat exchanger |
JP4448377B2 (en) | 2004-05-13 | 2010-04-07 | 株式会社日阪製作所 | Plate heat exchanger |
JP4552805B2 (en) * | 2005-08-19 | 2010-09-29 | 株式会社デンソー | Laminated heat exchanger and manufacturing method thereof |
DE102016001607A1 (en) | 2015-05-01 | 2016-11-03 | Modine Manufacturing Company | Liquid-to-refrigerant heat exchanger and method of operating the same |
WO2017138322A1 (en) * | 2016-02-12 | 2017-08-17 | 三菱電機株式会社 | Plate-type heat exchanger and heat-pump-type heating and hot-water supply system equipped with same |
CN109564071B (en) * | 2016-10-21 | 2020-09-15 | 松下知识产权经营株式会社 | Heat exchanger and refrigeration system using the same |
CN110651164B (en) * | 2017-05-23 | 2021-04-20 | 三菱电机株式会社 | Plate heat exchanger and heat pump type hot water supply system |
JP2019100564A (en) * | 2017-11-29 | 2019-06-24 | パナソニックIpマネジメント株式会社 | Heat exchanger and refrigeration system using the same |
-
2020
- 2020-06-02 JP JP2020095828A patent/JP7538991B2/en active Active
-
2021
- 2021-02-08 WO PCT/JP2021/004504 patent/WO2021245986A1/en unknown
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CN115885150A (en) | 2023-03-31 |
EP4160130A4 (en) | 2023-11-15 |
JP7538991B2 (en) | 2024-08-23 |
JP2021188844A (en) | 2021-12-13 |
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