WO2015050147A1 - Procédé pour former une plaque d'extrémité pour un échangeur de chaleur, et échangeur de chaleur équipé d'une plaque d'extrémité formée à l'aide du procédé - Google Patents

Procédé pour former une plaque d'extrémité pour un échangeur de chaleur, et échangeur de chaleur équipé d'une plaque d'extrémité formée à l'aide du procédé Download PDF

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Publication number
WO2015050147A1
WO2015050147A1 PCT/JP2014/076255 JP2014076255W WO2015050147A1 WO 2015050147 A1 WO2015050147 A1 WO 2015050147A1 JP 2014076255 W JP2014076255 W JP 2014076255W WO 2015050147 A1 WO2015050147 A1 WO 2015050147A1
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WO
WIPO (PCT)
Prior art keywords
end plate
convex
mold
concave mold
heat exchanger
Prior art date
Application number
PCT/JP2014/076255
Other languages
English (en)
Japanese (ja)
Inventor
優一郎 中村
Original Assignee
サンデン株式会社
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 サンデン株式会社 filed Critical サンデン株式会社
Priority to DE112014004592.6T priority Critical patent/DE112014004592T5/de
Priority to US15/026,958 priority patent/US20160296993A1/en
Priority to CN201480054757.7A priority patent/CN105593629A/zh
Publication of WO2015050147A1 publication Critical patent/WO2015050147A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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 invention relates to, for example, a method for forming an end plate of a heat exchanger provided in a refrigeration circuit used in a vehicle air conditioner and a heat exchanger provided with the end plate formed by the method.
  • a heat exchanger of this type includes a pair of headers extending in parallel with a distance from each other, and a plurality of heats that are connected to each header at both ends and spaced from each other in the direction in which the header extends.
  • Heat transfer fins provided between the exchange tubes and adjacent heat exchange tubes and on the outer sides of the heat exchange tubes located on both outer sides of the header extending direction, and heat transfer fins located on both outer sides of the header extending direction
  • an end plate having a base that is in contact with the heat transfer fins and an extension that extends from both sides in the width direction of the base toward the outside in the direction in which the header extends (for example, , See Patent Document 1).
  • the end plate of the heat exchanger includes a concave mold having a plate-shaped member having a groove bottom surface and a pair of groove wall surfaces extending from both ends in the width direction of the groove bottom surface, and a convex top surface facing the groove bottom surface of the concave mold. And a convex mold having a convex wall surface facing the groove wall surface, and is formed by press working that is sandwiched and bent.
  • the end plate formed by the concave mold and the convex mold has a large radius of curvature of the portion bent between the base portion and the extension portion, and the widthwise dimension of the flat portion of the surface facing the heat transfer fin Is smaller than the widthwise dimension of the heat transfer fin.
  • the end plate formed by the concave mold and the convex mold is connected to the adjacent heat transfer fins by brazing, but the area of the portion in contact with the heat transfer fins is small, the vibration resistance of the entire heat exchanger, etc. There is a risk that the strength of the.
  • the object of the present invention is to provide a method for forming an end plate of a heat exchanger capable of improving the strength such as vibration resistance of the heat exchanger by increasing the area of the portion in contact with the adjacent heat transfer fins, and It is providing the heat exchanger provided with the end plate formed by the method.
  • the present invention provides a pair of headers extending in parallel to each other at a distance from each other, and a plurality of end portions connected to each header and spaced from each other in the direction in which the headers extend.
  • Heat transfer fins provided on the outside of the heat exchange tube between the heat exchange tubes and the adjacent heat exchange tubes and on both outer sides in the direction in which the header extends, and heat transfer on both outer sides in the direction in which the header extends
  • An end plate provided on the outside of the fin and having a base portion in contact with the heat transfer fin and an extending portion extending from both sides in the width direction of the base portion toward the outside in the direction in which the header extends.
  • a concave mold having a groove bottom surface and a pair of groove wall surfaces extending from both ends in the width direction of the groove bottom surface, a convex top surface facing the groove bottom surface of the concave mold, and a groove wall surface of the concave mold.
  • a convex top wall Forming the end plates by sandwiching and convex mold the projecting portions are provided along the width direction on both sides, the plate-like member between.
  • the present invention provides a pair of headers extending in parallel to each other at a distance from each other, and both end portions thereof are connected to each header, and are arranged at a distance from each other in the extending direction of the header.
  • Heat transfer fins provided on the outer side of the heat exchange tubes located between the plurality of heat exchange tubes and the adjacent heat exchange tubes and on both outer sides in the header extending direction, and located on both outer sides in the header extending direction
  • An end of a heat exchanger comprising: a base provided on the outer side of the heat transfer fin, and an end plate having a base in contact with the heat transfer fin and an extending part extending from both sides in the width direction of the base toward the outer side in the direction in which the header extends.
  • a method of forming a plate comprising: a concave mold having a groove bottom surface and a pair of groove wall surfaces extending from both ends in the width direction of the groove bottom surface; and a convex top surface facing the groove bottom surface of the concave mold and the groove of the concave mold Having a convex wall surface opposite to the wall surface Bent by sandwiching a plate-like member between one convex mold, a concave mold, a convex top surface facing the groove bottom surface of the concave mold, a convex wall surface facing the groove wall surface of the concave mold, and a convex A concave mold between a second convex mold that has a convex base surface that extends outward in the width direction at a predetermined distance from the end of the wall surface on the convex top surface side and faces the groove bottom surface of the concave mold.
  • An end plate is formed by sandwiching the plate-like member bent between the first convex mold and the first convex mold in a state where the convex base surface is in contact with both end surfaces in the width direction.
  • the present invention provides a pair of headers extending in parallel to each other at a distance from each other, and both end portions thereof are connected to each header, and are arranged at a distance from each other in the extending direction of the header.
  • Heat transfer fins provided on the outer side of the heat exchange tubes located between the plurality of heat exchange tubes and the adjacent heat exchange tubes and on both outer sides in the header extending direction, and located on both outer sides in the header extending direction
  • An end of a heat exchanger comprising: a base provided on the outer side of the heat transfer fin, and an end plate having a base in contact with the heat transfer fin and an extending part extending from both sides in the width direction of the base toward the outer side in the direction in which the header extends.
  • a method of forming a plate comprising: a concave mold having a groove bottom surface and a pair of groove wall surfaces extending from both ends in the width direction of the groove bottom surface; and a convex top surface facing the groove bottom surface of the concave mold and the groove of the concave mold Having a convex wall surface opposite to the wall surface Forming the end plates by sandwiching and the mold, a plate-like member formed with the width direction a pair of grooves in between.
  • each groove portion provided in the plate-shaped member is bent, so that the gap between the base portion of the end plate and the extending portion is The radius of curvature of the bent portion is reduced, and the width dimension of the portion in contact with the heat transfer fin of the base portion is increased.
  • the radius of curvature of the bent portion between the base portion and the extending portion of the end plate can be reduced, and the width-direction dimension of the portion in contact with the heat transfer fin of the base portion can be increased.
  • the area of the portion where the heat transfer fin and the end plate are connected to each other by brazing is increased, and the strength of the heat exchanger such as rigidity and vibration resistance can be improved.
  • 1 to 6 show a first embodiment of the present invention.
  • the heat exchanger provided with the end plate of the present invention is applied to a refrigeration circuit such as a vehicle air conditioner.
  • the vehicle air conditioner includes a refrigerant circuit 1 to which an outdoor heat exchanger 10 as a heat exchanger provided outside the passenger compartment A is connected.
  • a compressor 2 for compressing the refrigerant in addition to the outdoor heat exchanger 10, a compressor 2 for compressing the refrigerant, an indoor heat exchanger 3 provided in the passenger compartment A, and an expansion valve 4 for depressurizing the refrigerant. And are connected.
  • the refrigerant circuit 1 cools the interior of the passenger compartment A by dissipating the refrigerant in the outdoor heat exchanger 10 and absorbing the refrigerant in the indoor heat exchanger 3.
  • each of the outdoor heat exchangers 10 extends in the vertical direction, and has a pair of width direction headers 11 that are spaced apart from each other, one end connected to one header 11, and the other end
  • a plurality of vertical heat exchange tubes 12 connected to the other header 11, a receiver 13 connected to the header 11, and the outside of the heat exchange tubes 12 located between the heat exchange tubes 12 and on both sides in the vertical direction.
  • a plurality of heat transfer fins 14 provided on the outer side, a pair of end plates 15 provided on the outer sides of the heat transfer fins 14 located on both outer sides in the vertical direction, and brackets provided on both longitudinal sides of the end plates 15 16.
  • Each header 11 is a member formed in a hollow cylindrical shape made of a metal such as aluminum.
  • the end of each heat exchange tube 12 is connected to the outer periphery of each header 11.
  • One header 11 has a refrigerant inlet 11 a for allowing the refrigerant discharged from the compressor 2 to flow into the header 11, and a refrigerant flow for causing the refrigerant in the header 11 to flow toward the indoor heat exchanger 3. And an outlet 11b.
  • a refrigerant outflow path 11 c for allowing the refrigerant in the header 11 to flow into the liquid receiver 13
  • a refrigerant inflow path 11 d for allowing the refrigerant that has passed through the liquid receiver 13 to flow into the header 11.
  • each header 11 is provided with a plurality of partition portions 11e that partition the inside in the vertical direction, and the flow direction of the refrigerant in each heat exchange tube 12 is determined by the partition portions 11e.
  • the refrigerant that has flowed into the one header 11 from the refrigerant inlet 11 a flows through the heat exchange tube 12 a and flows into the other header 11.
  • the refrigerant that has flowed into the other header 11 through the heat exchange tube 12 a flows through the heat exchange tube 12 b and flows into the one header 11.
  • the refrigerant flowing into one header 11 through the heat exchange tube 12b flows through the heat exchange tube 12c, flows into the other header 11, and flows into the liquid receiver 13 through the refrigerant outflow path 11c.
  • the refrigerant that has flowed into the liquid receiver 13 flows into the other header 11 through the refrigerant inflow passage 11d, flows into the one header 11 through the heat exchange tube 12d, and passes through the refrigerant outlet 11b to heat indoors. It flows out toward the exchanger 3.
  • Each heat exchange tube 12 is a hollow flat tubular member formed into a flat plate shape by extruding a metal such as aluminum.
  • Each heat exchange tube 12 is arranged such that the longitudinal direction (width direction) of the cross section of the flow path is directed to the flow direction of the air that exchanges heat with the refrigerant.
  • each heat exchange tube 12 partitions the inside in the longitudinal direction (width direction) of the flow path cross section, so that the refrigerant flow path as a fluid flow path through which the refrigerant flows is in the longitudinal direction (width direction) of the flow path cross section. A plurality are formed.
  • the liquid receiver 13 is made of a metal member such as aluminum and has a cylindrical shape with both ends closed.
  • the liquid receiver 13 is disposed so that the central axis extends in the vertical direction, which is the same direction as the header 11, and is connected to the other header 11 via the refrigerant outflow path 11 c and the refrigerant inflow path 11 d.
  • the liquid receiver 13 contains a dryer and a filter. The moisture in the refrigerant that has flowed into the liquid receiver 13 is removed by the dryer, and foreign substances such as dust in the refrigerant that has flowed in are captured by the filter.
  • the heat transfer fins 14 are made of a member in which a metal plate such as aluminum is formed in a wave shape, for example, and are attached to the heat exchange tube 12 and the end plate 15 by brazing.
  • the end plate 15 is formed, for example, by pressing a metal plate 15 ′ such as aluminum having a brazing material layer. As shown in FIGS. 3 and 4, the end plate 15 includes a base portion 15 a extending along the longitudinal direction, and an extending portion 15 b extending at substantially right angles from both sides in the short direction of the base portion 15 a except for both ends in the longitudinal direction. ,have.
  • the end plate 15 is formed by pressing a metal plate 15 ′ having a plate thickness T of 1.5 mm so that the width dimension W1 is 12 mm, and the surface of the base portion 15a on the heat transfer fin 14 side is flat.
  • the width direction dimension W2 of the portion is formed to 9.5 mm, and the curvature radius R of the bent portion between the base portion 15a and the extending portion 15b is formed to 2 mm.
  • Both end portions of the end plate 15 in the longitudinal direction are connected to the headers 11 and are fixed to the headers 11 by brazing. Further, the end plate 15 is connected to the heat transfer fin 14 with respect to the base portion 15a by brazing.
  • the bracket 16 is attached between the wall portions 15b of the end plate 15 by welding, rivets, caulking or the like, and fixed to the end plate 15 by brazing.
  • the bracket 16 is fixed to a member in an engine room outside the passenger compartment A, for example, by fastening members such as bolts and nuts.
  • the outdoor heat exchanger 10 is mounted in the engine room via a bracket 16.
  • the refrigerant discharged from the compressor 2 radiates heat in the outdoor heat exchanger 10, and then the expansion valve 4 is opened. The pressure is reduced and the heat is absorbed in the indoor heat exchanger 3 and then sucked into the compressor 2.
  • the end plate 15 is formed by pressing a flat metal plate 15 ′ with a concave concave mold 21 and a convex convex mold 22.
  • the concave mold 21 is formed in a groove shape, and has a planar groove bottom surface 21a and a groove wall surface 21b extending perpendicularly from both ends in the width direction of the groove bottom surface 21a.
  • the convex mold 22 is a ridge, and has a convex top surface 22a facing the groove bottom surface 21a and a convex wall surface 22b facing the groove wall surface 21b.
  • Protrusions 22c are provided on the convex top surface 22a so as to extend along both ends in the width direction.
  • the protrusion 22c is formed in, for example, a rectangular cross section in which the width dimension W3 is 0.5 mm and the height dimension H is 0.3 mm.
  • the flat metal plate 15 ′ When the flat metal plate 15 ′ is pressed by the concave mold 21 and the convex mold 22, the flat metal plate 15 ′ is bent to form a base portion 15 a and a pair of extending portions 15 b to form the end plate 15.
  • the protrusions 22 c of the convex mold 22 are in contact with both ends in the width direction of the base 15 a as shown in FIG. To the concave mold 21 side. For this reason, the radius of curvature of the portion bent between the base 15a on the concave mold 21 side of the end plate 15 and the extension 15b is smaller than when pressing with a mold that does not have the protrusion 22c. Further, the dimension in the width direction of the flat surface of the base portion 15a on the concave mold 21 side is larger than when pressing with a mold that does not have the protrusion 22c.
  • the concave mold 21 having the groove bottom surface 21a and the pair of groove wall surfaces 21b extending from both ends in the width direction of the groove bottom surface 21a
  • the mold 21 has a convex top surface 22a facing the groove bottom surface 21a and a convex wall surface 22b facing the groove wall surface 21b of the concave mold 21.
  • Protruding portions 22c are provided along both sides of the convex top surface 22a in the width direction.
  • the end plate 15 is formed by sandwiching a metal plate 15 ′ between the raised mold 22.
  • the radius of curvature of the bent portion between the base portion 15a and the extension portion 15b of the end plate 15 can be reduced, and the width direction dimension W2 of the plane contacting the heat transfer fin 14 of the base portion 15a can be increased. Therefore, the area of the portion connected by brazing between the heat transfer fins 14 and the end plates 15 is increased, and the strength of the outdoor heat exchanger 10 such as rigidity and vibration resistance can be improved.
  • the end plate 15 is formed of a plate-like member having a brazing material layer.
  • the groove formed by the protruding portion 22c of the convex mold 22 at the time of press working can be covered with the brazing material melted at the time of brazing, so that the groove formed by the protruding portion 22c at the time of pressing is the cause.
  • the strength of the end plate 15 is not reduced.
  • FIG. 7 shows a second embodiment of the present invention.
  • symbol is attached
  • the protruding top surface 22a of the protruding mold 22 of the present embodiment is provided with a protruding portion 22d extending along each of both ends in the width direction.
  • the protrusion 22d has, for example, a cross-sectional triangular shape in which the widthwise dimension W3 is 0.5 mm and the height H is 0.3 mm and the apex is flush with the convex wall 22b or inward in the widthwise direction. Is formed.
  • the base 15a on the side of the concave mold 21 of the end plate 15 and the extension are provided as in the above embodiment.
  • the radius of curvature of the portion that is bent with respect to the portion 15b is smaller than that in the case of pressing with a mold that does not have the protruding portion 22d.
  • the width-direction dimension of the flat surface of the base portion 15a on the concave mold 21 side is larger than when pressing with a mold that does not have the protrusion 22d.
  • the radius of curvature of the bent portion between the base portion 15a and the extension portion 15b of the end plate 15 is reduced as in the above embodiment. Since the dimension W2 in the width direction of the plane contacting the heat transfer fin 14 of the base portion 15a can be increased, the area of the portion to be connected by brazing the heat transfer fin 14 and the end plate 15 increases. The strength of the outdoor heat exchanger 10 such as rigidity and vibration resistance can be improved.
  • the end plate 15 of the present embodiment presses a flat metal plate 15 ′ between the concave mold 21 and the convex first convex mold 23, so that the concave mold 21 and the first convex mold 23 are pressed. Is formed by pressing the plate-shaped member pressed between the concave mold 21 and the first convex mold 23 and the second convex mold 24 having a different shape.
  • the first convex mold 23 is a ridge, and has a convex top surface 23a facing the groove bottom surface 21a and a convex wall surface 23b facing the groove wall surface 21b.
  • the second convex mold 24 is a protrusion, a convex top surface 24a facing the groove bottom surface 21a, a convex wall surface 24b facing the groove bottom surface 21a side of the groove wall surface 21b, and the convex top surface 24a side of the convex wall surface 24b. And a convex base surface 24c that extends outward in the width direction at a predetermined distance from the end portion and faces the groove bottom surface 21a.
  • the portion that becomes the extended portion 15 b is pressed toward the concave mold 21.
  • the radius of curvature of the portion bent between the base 15a on the concave mold 21 side and the extension 15b of the end plate 15 is larger than that before pressing with the concave mold 21 and the second convex mold 24. Get smaller.
  • the width direction dimension of the flat surface of the base portion 15 a on the concave mold 21 side is larger than that before pressing with the concave mold 21 and the second convex mold 24.
  • the concave mold 21 having the groove bottom surface 21a and the pair of groove wall surfaces 21b extending from both ends in the width direction of the groove bottom surface 21a
  • the metal plate 15 ' is bent between the first convex mold 23 having a convex top surface 23a facing the groove bottom surface 21a of the mold 21 and the convex wall surface 23b facing the groove wall surface 21b.
  • a pair of grooves 15c in the width direction is formed on a flat metal plate 15 'by pressing, cutting, or the like, and the metal plate 15' having the grooves 15c is formed into a concave concave mold 21. And by pressing with a convex convex mold 25.
  • the pair of grooves 15c in the width direction formed in the metal plate 15 ' is provided at or near the bent portion between the base portion 15a and the extension portion 15b of the end plate 15, respectively.
  • the concave mold 21 is formed in a groove shape, and has a planar groove bottom surface 21a and a groove wall surface 21b extending perpendicularly from both ends in the width direction of the groove bottom surface 21a.
  • the convex mold 25 is a ridge, and has a convex top surface 25a facing the groove bottom surface 21a and a convex wall surface 25b facing the groove wall surface 21b.
  • the flat metal plate 15 ′ When the flat metal plate 15 ′ is pressed by the concave mold 21 and the convex mold 22, the flat metal plate 15 ′ is bent to form a base portion 15 a and a pair of extending portions 15 b to form the end plate 15.
  • the metal plate 15 ′ When the metal plate 15 ′ is pressed by the concave mold 21 and the convex mold 22, the metal plate 15 ′ is bent at the groove 15 c.
  • the radius of curvature of the portion bent between the base 15a on the concave mold 21 side of the end plate 15 and the extending portion 15b is smaller than when pressing the metal plate 15 ′ having no groove 15c.
  • the dimension in the width direction of the flat surface of the base portion 15a on the concave mold 21 side is larger than that in the case of pressing the metal plate 15 ′ not having the groove 15c.
  • the concave mold 21 having the groove bottom surface 21a and the pair of groove wall surfaces 21b extending from both ends in the width direction of the groove bottom surface 21a, A pair of grooves 15c in the width direction was formed between a convex mold 25 having a convex top surface 25a facing the groove bottom surface 21a of the mold 21 and a convex wall surface 25b facing the groove wall surface 21b of the concave mold 21.
  • the end plate 15 is formed by sandwiching the metal plate 15 '.
  • the radius of curvature of the bent portion between the base portion 15a and the extension portion 15b of the end plate 15 can be reduced, and the width direction dimension W2 of the plane contacting the heat transfer fin 14 of the base portion 15a can be increased. Therefore, the area of the portion connected by brazing between the heat transfer fins 14 and the end plates 15 is increased, and the strength of the outdoor heat exchanger 10 such as rigidity and vibration resistance can be improved.
  • the end plate 15 is formed of a plate-like member having a brazing material layer. Thereby, since the groove 15c formed before the press working can be covered with the brazing material melted at the time of brazing, the strength of the end plate 15 is reduced due to the groove 15c formed before the press working. I will not let you.
  • the said embodiment showed about the method of forming the end plate 15 of the outdoor heat exchanger 10 for thermal radiation of the vehicle air conditioner, it is not restricted to this. If this invention is a heat exchanger which has an end plate, it can be used for heat exchangers other than a vehicle air conditioner.
  • the present invention is not limited to a heat exchanger for heat dissipation, and can be used for a heat exchanger for heat absorption or a heat exchanger for switching between heat dissipation and heat absorption.

Landscapes

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

Abstract

La présente invention vise à fournir un procédé pour former une plaque d'extrémité pour un échangeur de chaleur, la résistance (par exemple, la résistance aux vibrations) de l'échangeur de chaleur étant améliorée en agrandissant la surface de la partie en contact avec des ailettes de transfert de chaleur adjacentes, et à fournir un échangeur de chaleur équipé d'une plaque d'extrémité formée à l'aide du procédé. À cet effet, la plaque d'extrémité (15) est formée en prenant en sandwich une plaque métallique (15') entre un moule concave (21) et un moule convexe (22). Le moule concave comprend une surface inférieure de rainure (21a) et une paire de surfaces de paroi de rainure (21b) s'étendant des extrémités dans la direction de largeur de la surface inférieure de rainure (21a). Le moule convexe comprend une surface supérieure (22a) opposée à la surface inférieure de rainure (21a) du moule concave (21), et des surfaces de paroi (22b) opposées aux surfaces de paroi de rainure (21b) du moule concave (21), des parties saillantes (22c) étant situées le long de la surface supérieure (22a) sur les deux côtés dans la direction de largeur.
PCT/JP2014/076255 2013-10-02 2014-10-01 Procédé pour former une plaque d'extrémité pour un échangeur de chaleur, et échangeur de chaleur équipé d'une plaque d'extrémité formée à l'aide du procédé WO2015050147A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112014004592.6T DE112014004592T5 (de) 2013-10-02 2014-10-01 Verfahren zum Ausbilden einer Endplatte für einen Wärmetauscher und Wärmetauscher, der mit einer durch dieses Verfahren ausgebildeten Endplatte versehen ist
US15/026,958 US20160296993A1 (en) 2013-10-02 2014-10-01 Method for forming end plate for heat exchanger and heat exchanger equipped with end plate formed with this method
CN201480054757.7A CN105593629A (zh) 2013-10-02 2014-10-01 热交换器的端板的形成方法及具有用此方法形成的端板的热交换器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-207621 2013-10-02
JP2013207621A JP2015072079A (ja) 2013-10-02 2013-10-02 熱交換器の端板の形成方法及びその方法で形成された端板を備えた熱交換器

Publications (1)

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WO2015050147A1 true WO2015050147A1 (fr) 2015-04-09

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US (1) US20160296993A1 (fr)
JP (1) JP2015072079A (fr)
CN (1) CN105593629A (fr)
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WO (1) WO2015050147A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN106001264A (zh) * 2016-05-31 2016-10-12 东莞昶能镭射金属科技有限公司 一种金属板材弯折件的制造方法、制品及专用弯折模具
DE102021133789A1 (de) * 2021-12-20 2023-06-22 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung von Blechbauteilen und Vorrichtung hierfür

Citations (9)

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DE823282C (de) * 1947-07-28 1952-01-03 Betonfabriek De Meteoor Nv Vorrichtung zur Herstellung von Platten mit scharfkantig gebogenen Randteilen
JPS5414360A (en) * 1977-07-05 1979-02-02 Sanyo Electric Co Ltd Folding method for metallic plate
JPS5691624U (fr) * 1980-06-30 1981-07-21
JPS57209720A (en) * 1981-06-16 1982-12-23 Toyo Meiban Seizo Kk Method for bending work of metallic thin sheet
JPS6112507U (ja) * 1984-06-28 1986-01-24 トヨタ自動車株式会社 曲げ金型
JPS6123525A (ja) * 1984-07-12 1986-02-01 Fujitsu Ltd 曲げ型
JPS6264424A (ja) * 1985-09-13 1987-03-23 Mitsubishi Electric Corp Ｕ曲げ加工方法及び装置
JP2013044450A (ja) * 2011-08-22 2013-03-04 Japan Climate Systems Corp 熱交換器
JP2013044449A (ja) * 2011-08-22 2013-03-04 Sanden Corp 熱交換器およびその製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4697086B2 (ja) * 2005-12-01 2011-06-08 日産自動車株式会社 屈曲した角部を有する成形部品およびその製造方法並びに製造装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823282C (de) * 1947-07-28 1952-01-03 Betonfabriek De Meteoor Nv Vorrichtung zur Herstellung von Platten mit scharfkantig gebogenen Randteilen
JPS5414360A (en) * 1977-07-05 1979-02-02 Sanyo Electric Co Ltd Folding method for metallic plate
JPS5691624U (fr) * 1980-06-30 1981-07-21
JPS57209720A (en) * 1981-06-16 1982-12-23 Toyo Meiban Seizo Kk Method for bending work of metallic thin sheet
JPS6112507U (ja) * 1984-06-28 1986-01-24 トヨタ自動車株式会社 曲げ金型
JPS6123525A (ja) * 1984-07-12 1986-02-01 Fujitsu Ltd 曲げ型
JPS6264424A (ja) * 1985-09-13 1987-03-23 Mitsubishi Electric Corp Ｕ曲げ加工方法及び装置
JP2013044450A (ja) * 2011-08-22 2013-03-04 Japan Climate Systems Corp 熱交換器
JP2013044449A (ja) * 2011-08-22 2013-03-04 Sanden Corp 熱交換器およびその製造方法

Also Published As

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CN105593629A (zh) 2016-05-18
DE112014004592T5 (de) 2016-08-18
JP2015072079A (ja) 2015-04-16
US20160296993A1 (en) 2016-10-13

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