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WO2017013918A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2017013918A1
WO2017013918A1 PCT/JP2016/063011 JP2016063011W WO2017013918A1 WO 2017013918 A1 WO2017013918 A1 WO 2017013918A1 JP 2016063011 W JP2016063011 W JP 2016063011W WO 2017013918 A1 WO2017013918 A1 WO 2017013918A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
core plate
heat exchanger
width direction
tubes
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.)
Ceased
Application number
PCT/JP2016/063011
Other languages
English (en)
Japanese (ja)
Inventor
拓也 三ツ橋
孝博 宇野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to JP2017529477A priority Critical patent/JPWO2017013918A1/ja
Priority to CN201680030767.6A priority patent/CN107636413A/zh
Priority to DE112016003219.6T priority patent/DE112016003219T5/de
Priority to US15/741,826 priority patent/US20180195805A1/en
Publication of WO2017013918A1 publication Critical patent/WO2017013918A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • F28F1/045—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular with assemblies of stacked elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F2225/08—Reinforcing means for header boxes
    • 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing

Definitions

  • the present disclosure relates to a heat exchanger and is suitable for a radiator that cools cooling water of a water-cooled internal combustion engine.
  • a heat exchanger includes a core portion configured by alternately laminating a plurality of tubes and a plurality of corrugated fins, a header tank that is joined to an end portion in a longitudinal direction of the tube, and communicates with the tube.
  • the header tank includes a core plate into which a tube is inserted and joined, and a tank main body part that is fixed to the core plate and forms an internal space of the header tank together with the core plate.
  • the core plate has a flat surface on the inner side of the header tank, a tube joint portion provided with a tube insertion hole into which a plurality of tubes are inserted, and a groove portion provided outside the tube joint portion to receive the end of the tank main body portion. Is provided.
  • Patent Document 1 a portion on the edge side in the tube width direction at the periphery of the tube insertion hole is formed to protrude upward.
  • Patent Document 1 attempts to improve the strength on the end side in the width direction of the tube.
  • FIG. 12 shows a schematic cross-section of the core plate studied first by the present inventors.
  • FIG. 13, FIG. 14 has shown the typical cross section of the core plate which the present inventors examined 2nd.
  • Study Example 1 the configuration illustrated in FIG. 12 is referred to as Study Example 1
  • Study Example 2 the configuration illustrated in FIGS. 13 and 14 is referred to as Study Example 2.
  • the brazing material easily goes around not only between the periphery of the tube insertion hole TBh but also between the opposing wall surfaces of the core plate CP1 and the tube TB. .
  • the tube TB and the core plate CP1 may be joined at an unintended position.
  • the present inventors have studied a configuration in which the distance between the opposing wall surfaces of the core plate CP2 and the tube TB is increased except for the periphery of the tube insertion hole TBh. Yes. That is, as shown in FIG. 14, a configuration in which an inclined portion Ci is provided between the joint portion Cj of the tube TB in the core plate CP2 and the portion Ct that receives the tank main body portion is examined. According to this, even if the thickness of the tube TB in the width direction WD of the core plate CP2 in the heat exchanger is reduced, it is possible to avoid the tube TB and the core plate CP2 being joined at an unintended position.
  • the present inventors investigated the cause of the formation of the depression Cs in the core plate CP2.
  • the tube insertion hole TBh is formed in a part of the inclined portion Ci of the core plate CP2 having a thickness larger than that of the tube joint portion Cj, and the tube insertion hole TBh is formed. It was found that the depression Cs was formed by the molding shrinkage.
  • This disclosure is intended to provide a heat exchanger that can suppress the occurrence of unintended depressions in the core plate even if the thickness of the core plate in the width direction of the tube is reduced.
  • a heat exchanger includes a core portion having a plurality of flat tubes arranged in a stacked manner, a header tank disposed at an end portion in the longitudinal direction of the tubes and communicating with the plurality of tubes. .
  • the header tank of the heat exchanger is fixed to the core plate with a plurality of tubes brazed together with the longitudinal ends of the tubes inserted into the tube insertion holes, together with the core plate.
  • a tank main body that forms a space communicating with the plurality of tubes.
  • the core plate includes a tube joint portion in which a plurality of tube insertion holes are formed, an accommodation receiving portion that surrounds the tube joint portion and accommodates a tip portion close to the core plate in the tank main body portion, and the accommodation receiving portion and the tube joint. And an inclined portion that is inclined with respect to the longitudinal direction of the tube.
  • the inclined portion includes a first imaginary line that extends linearly along the inclined portion from the housing receiving portion toward the tube joint portion, and a second imaginary line that extends linearly along the tube joint portion in the cross-sectional major axis direction of the tube.
  • the line is provided on the core plate so as to intersect the outside of the tube in the width direction of the tube.
  • the width direction of a tube In this case, the inclined portion is formed at a position away from the tube insertion hole. For this reason, it can suppress that a hollow is formed in the peripheral part of the tube insertion hole in a core plate by the shaping
  • the heat exchanger of the present disclosure even if the thickness of the tube in the width direction of the tube in the core plate is reduced, it is possible to suppress an unintended depression in the core plate. As a result, when the tube and the core plate are joined by brazing, the brazing material wraps around stably, so that the joining state between the tube and the core plate can be stabilized.
  • FIG. 5 is a VV cross-sectional view of FIG. 4.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. It is sectional drawing which shows the principal part of the core plate of the radiator which concerns on 1st Embodiment. It is explanatory drawing which shows the deformation
  • the radiator 1 includes a core portion 10 that is a heat exchange portion that exchanges heat of cooling water of an internal combustion engine (not shown) with outside air.
  • the core part 10 is configured by a laminated body in which a plurality of tubes 11 and fins 12 are alternately laminated in the vertical direction.
  • the stacking direction of the tubes 11 and the fins 12 is referred to as a tube stacking direction YD.
  • Each tube 11 has a flow path through which cooling water of an internal combustion engine (not shown) flows.
  • Each tube 11 of the present embodiment is configured in a flat shape so that the longitudinal direction thereof extends along the horizontal direction, and the direction in which the cross section has a long diameter (that is, the cross section long diameter direction) extends along the flow direction of the outside air. Has been.
  • the flat shape refers to an elliptical shape composed of a curved shape obtained by combining an arc portion having a large curvature radius and an arc portion having a small curvature radius, an oval shape comprising a shape obtained by combining an arc portion and a flat portion, and the like. It is included.
  • the longitudinal direction of the tube 11 is referred to as a tube longitudinal direction XD
  • the direction orthogonal to the tube longitudinal direction XD and the tube stacking direction YD is referred to as a tube width direction ZD.
  • the tube width direction ZD of the present embodiment is a direction that coincides with the direction in which the tube 11 becomes the major axis (that is, the cross-sectional major axis direction).
  • the fin 12 is a member that increases the heat transfer area with the outside air and promotes heat exchange between the outside air and the cooling water.
  • the fins 12 of the present embodiment are formed in a corrugated shape and are joined to the flat surfaces on both sides of the tube 11.
  • the flat surface used in the present embodiment means a substantially flat state. That is, the flat surface used in the present embodiment includes a state including minute steps, irregularities, and the like that are formed in manufacturing. The same applies to the flat surface of the tube joint portion 211 and the flat surface of the inclined portion 215 described later.
  • Each tube 11 and fin 12 of the present embodiment are made of a metal (for example, an aluminum alloy) excellent in thermal conductivity, corrosion resistance, and the like.
  • each tube 11, fins 12, a core plate 21 to be described later, and a side plate 40 to be described later are integrally brazed and joined by a brazing material coated at a predetermined position of each member.
  • a pair of header tanks 20 and 30 extending in the tube stacking direction YD and having a space formed therein are disposed at both ends of the tube 11 in the tube longitudinal direction XD.
  • Each header tank 20 and 30 is joined in a state in which the end portion of each tube 11 in the tube longitudinal direction XD is inserted into a tube insertion hole 211a of the core plate 21 described later.
  • the internal passage in each tube 11 communicates with a space formed inside each header tank 20, 30.
  • one header tank constitutes an inlet side tank 20 that distributes and supplies high-temperature cooling water flowing out from an internal combustion engine (not shown) to each tube 11.
  • the inlet side tank 20 is provided with an inlet pipe 20a connected to the outlet side of the cooling water of the internal combustion engine via a hose (not shown).
  • the other header tank constitutes an outlet side tank 30 that collects and collects cooling water cooled by heat exchange with the outside air in the core 10.
  • the outlet side tank 30 is provided with an outlet pipe 30a connected to the cooling water inlet side of the internal combustion engine via a hose (not shown).
  • Side plates 40 that reinforce the core portion 10 are disposed at both ends of the core portion 10 in the tube stacking direction YD.
  • the side plate 40 extends along the tube longitudinal direction XD, and both ends thereof are connected to the header tanks 20 and 30.
  • the side plate 40 of the present embodiment is made of a metal such as an aluminum alloy.
  • each header tank 20, 30 has a core body 21 that forms an internal space 20 b of each header tank 20, 30 together with the core plate 21 and the core plate 21 that are joined together with the tube 11 inserted. 22 and packing 23.
  • the core plate 21 of the present embodiment is made of a metal (for example, an aluminum alloy) excellent in thermal conductivity, corrosion resistance, and the like.
  • the tank body 22 of the present embodiment is formed of a resin such as glass reinforced polyamide reinforced with glass fibers.
  • the packing 23 is made of elastically deformable rubber.
  • the packing 23 may be formed of, for example, silicon rubber or EPDM (that is, ethylene / propylene / diene rubber).
  • the tank plate 22 in a state where the packing 23 is sandwiched between the core plate 21 and the tank main body 22, the tank plate 22 is plastically deformed so as to press a protruding piece 213 of the core plate 21 described later against the tank main body 22.
  • the main body 22 is caulked and fixed to the core plate 21.
  • the core plate 21 has a tube joint portion 211 for joining the tube 11, and a housing receiving portion 212 for housing a flange portion 222 and a packing 23 of the tank main body portion 22 described later around the tube joint portion 211.
  • the accommodation receiving part 212 has two wall surfaces and is configured in an L shape. That is, the housing receiving portion 212 is a bottom wall portion 212a extending in the tube width direction ZD when viewed from the tube stacking direction YD, and an outer wall portion bent in an L shape from the bottom wall portion 212a and extending in the tube longitudinal direction XD. 212b. Further, as shown in FIG. 3, a plurality of protruding pieces 213 for caulking are formed at the end of the outer wall portion 212 b of the housing receiving portion 212.
  • the tube joining portion 211 has a plurality of tube insertion holes 211a for brazing and joining in a state where the end portions in the tube longitudinal direction XD of each tube 11 are inserted in the tube stacking direction YD. It is formed to line up at intervals.
  • FIG. 5 is a diagram showing a cross-sectional shape of the core plate 21 when a portion including the tube insertion hole 211a in the tube joint portion 211 is cut in the tube longitudinal direction XD.
  • FIG. 6 is a diagram showing a cross-sectional shape of the core plate 21 when a portion located between the tube insertion holes 211a in the tube joint portion 211 is cut in the tube longitudinal direction XD.
  • a burring portion 211 b that protrudes toward the inner space of each header tank 20, 30 is formed in a portion extending in the tube width direction ZD in the peripheral portion of the tube insertion hole 211 a. .
  • the burring portion 211 b is provided to increase the rigidity of the peripheral edge portion of the tube insertion hole 211 a in the core plate 21.
  • the tube joining portion 211 is located between the adjacent tube insertion holes 211 a, and in the tube width direction ZD of each tube 11, the tube length of each tube 11.
  • a rib 214 that is recessed away from the end in the direction XD is formed.
  • the ribs 214 are formed so as to overlap the ends of the tubes 11 in the tube width direction ZD in the tube longitudinal direction XD when viewed from the tube stacking direction YD (that is, the direction perpendicular to the paper surface of FIGS. 5 and 6). ing.
  • the tube joint portion 211 and the housing receiving portion 212 are connected via an inclined portion 215 that is inclined with respect to the tube longitudinal direction XD.
  • part between the tube junction part 211 and the bottom wall part 212a of the accommodating receiving part 212 becomes a stepped shape.
  • the inclined portion 215 of the present embodiment is inclined so that the interval with the tube 11 in the tube width direction ZD becomes narrower from the bottom wall portion 212a side of the housing receiving portion 212 toward the tube joint portion 211 side.
  • the tube insertion hole 211a overlaps with a part of the inclined portion 215 in the tube longitudinal direction XD, the tube insertion hole 211a has an intention to the peripheral portion of the tube insertion hole 211a. It has been found that dents that are not easily formed.
  • the shape of the inclined portion 215 is set so that a part of the inclined portion 215 does not overlap the tube insertion hole 211a in the tube longitudinal direction XD.
  • the inclined portion 215 includes a first imaginary line VL ⁇ b> 1 that extends linearly along the inclined portion 215 and a second imaginary line VL ⁇ b> 2 that extends linearly along the tube joint portion 211.
  • the inclined portion 215 of the present embodiment is formed on the core plate 21 so that the intersection A between the first virtual line VL1 and the second virtual line VL2 is located outside the tube width direction ZD of the tube 11. Has been.
  • the first virtual line VL1 is a straight line extending along the flat surface of the inclined portion 215, and is a straight line indicated by a one-dot chain line in FIG.
  • the first virtual line VL ⁇ b> 1 is a straight line extending linearly along the inclined portion 215 from the housing receiving portion 212 toward the tube joint portion 211.
  • the flat surface of the inclined portion 215 means that it is in a substantially flat state, and includes a minute step, unevenness or the like that is formed in manufacturing. Also good.
  • the second virtual line VL2 is a straight line extending along the flat surface of the tube joint portion 211, and is a straight line indicated by a two-dot chain line in FIG.
  • the second imaginary line VL ⁇ b> 2 is a straight line that extends linearly along the tube joint portion 211 in the direction of the long diameter in the cross section of the tube 11 (that is, the cross section long diameter direction).
  • the flat surface of the tube joint portion 211 means a substantially flat state, and includes a minute step, unevenness, etc. that are formed in manufacturing. May be.
  • the tank body 22 of the present embodiment has a length in the tube width direction ZD shorter than a length in the tube width direction of the tube 11 in order to reduce the thickness of the radiator 1 in the tube width direction ZD. It has the part which becomes. And the bulging part 221 which swelled in the direction away from the tube 11 in the tube width direction ZD is provided in the site
  • the tank main body portion 22 of the present embodiment is provided with a flange portion 222 having a thickness larger than that of other portions at a tip portion close to the core plate 21.
  • the flange portion 222 is disposed on the receiving portion 212 of the core plate 21 via the packing 23.
  • the manufacturing method of the radiator 1 of the present embodiment includes a preparation process, a temporary assembly process, and a brazing joining process.
  • a preparation process each component which comprises the radiator 1 is prepared.
  • This preparation step includes a step of forming the core plate 21 having the tube joint portion 211, the receiving portion 212, the protruding piece 213, and the rib 214.
  • the tube insertion hole 211a is formed on the flat surface of the tube joint portion 211 by punching a plate-shaped metal material (for example, punching).
  • the core portion 10 and the like are temporarily assembled by assembling the tube 11, the fins 12, and the side plate 40 prepared in the preparation process in the tube stacking direction YD on the work table.
  • the assembled state is maintained by a jig such as a wire.
  • the assembly of the state in which the core plate 21 is assembled to the core portion 10 is placed in a heated furnace, so that each element of the core plate 21 and the core portion 10 is brazed. To join.
  • the packing 23 is accommodated in the accommodation receiving portion 212 of the core plate 21. Then, in a state in which the flange portion 222 of the tank main body portion 22 is accommodated in the accommodation receiving portion 212 of the core plate 21 in which the packing 23 is accommodated, the projecting pieces 213 of the core plate 21 are plastically deformed by pressing or the like, The tank body 22 is caulked and fixed to the core plate 21.
  • the manufacturing of the radiator 1 is completed through inspection processes such as leakage inspection and dimension inspection. In the leakage inspection or the like, it is confirmed whether or not there is a brazing defect or a caulking defect at the joint portion of the radiator 1.
  • the radiator 1 of the present embodiment described above has the following effects by having the above-described configuration. That is, the radiator 1 according to the present embodiment is configured to connect the tube joining portion 211 of the core plate 21 and the bottom wall portion 212a of the housing receiving portion 212 via the inclined portion 215. According to this, even if the thickness of the core plate 21 in the radiator 1 in the tube width direction ZD is reduced, the tube 11 and the core plate 21 can be prevented from being joined at an unintended position.
  • the first imaginary line VL ⁇ b> 1 extending along the inclined portion 215 and the second imaginary line VL ⁇ b> 2 extending along the tube joint portion 211 are in the tube width direction of the tube 11.
  • the inclined portion 215 is formed so as to intersect outside the ZD. According to this, in the tube width direction ZD, the inclined portion 215 is formed at a position away from the tube insertion hole 211a. For this reason, it can suppress that a hollow is formed in the peripheral part of the tube insertion hole 211a in the core plate 21 by the shaping
  • the radiator 1 of the present embodiment it is possible to suppress an unintended depression in the core plate 21 even if the thickness of the core plate 21 in the tube width direction ZD is reduced. As a result, when the tube 11 and the core plate 21 are brazed and joined, the brazing material wraps around stably, so that the joined state between the tube 11 and the core plate 21 can be stabilized.
  • the core plate 21 may be deformed like a bow due to the tube 11 on the high temperature side extending in the tube longitudinal direction XD. In this case, stress concentrates on the end of the tube 11 in the tube width direction ZD.
  • the tube 11 is located between the adjacent tube insertion holes 211a in the core plate 21 and located on the end portion side in the width direction of the tube 11 from the end portion of the tube 11 in the tube longitudinal direction XD.
  • a recessed rib 214 is formed.
  • the stress concentration generated in the end portion of the tube 11 in the tube width direction ZD is also alleviated by the deformation of the inclined portion 215 located outside the tube width direction ZD around the intersection A. That is, when a temperature difference occurs between the adjacent tubes 11, the stress generated at the end of the tube 11 in the tube width direction ZD is absorbed by the deformation of the inclined portion 215.
  • the inventors of the present invention have the stress acting on the end of the tube 11 in the tube width direction ZD at the position of the tube 11 and the intersection A of the first imaginary line VL1 and VL2 in the tube width direction ZD.
  • the effective range for reducing concentration was examined.
  • FIG. 10 is a diagram showing the examination results of the effective range for reducing the stress concentration acting on the tube root portion Tb with respect to the distance Lta between the tube root portion Tb that is the end portion of the tube 11 in the tube width direction ZD and the intersection A. It is.
  • the horizontal axis of FIG. 10 indicates the distance between the tube root portion Tb and the intersection A, that is, the tube intersection distance Lta.
  • the vertical axis in FIG. 10 represents the ratio of the generated stress with the stress acting on the tube root portion Tb being 100% when the tube intersection distance Lta is zero.
  • the triangular plot in the figure shows the relationship between the tube intersection distance Lta and the generated stress ratio when the inclination angle ⁇ of the inclined portion 215 is 15 °.
  • the square plot in the figure shows the relationship between the tube intersection distance Lta and the generated stress ratio when the inclination angle ⁇ of the inclined portion 215 is 20 °.
  • the rhombus plot in the figure shows the relationship between the tube intersection point distance Lta and the generated stress ratio when the inclination angle ⁇ of the inclined portion 215 is 40 °.
  • the inclination angle ⁇ is an angle formed by the inclined portion 215 and the tube longitudinal direction XD as shown in FIG.
  • the distance between the intersection A between the first virtual line VL1 and the second virtual line VL2 and the tube root portion Tb is 0.0-2. It is desirable to provide the core plate 21 so as to be in the range of 4 mm.
  • the distance Lta between the tube intersections is in the range of 0.0 to 2.4 mm, the end of the tube 11 in the tube width direction ZD is deformed even if a temperature difference occurs between the adjacent tubes 11. It can be effectively suppressed.
  • the ratio of generated stress when the tube intersection distance Lta is 0.0 is 100% or less, but is close to 100%.
  • the inclined portion 215 is more preferably provided on the core plate 21 so that the distance Lta between the tube intersections is greater than 0.0 mm and equal to or less than 2.4 mm.
  • the generated stress ratio is less than 80%, so that the deformation of the end of the tube 11 in the tube width direction ZD can be reliably suppressed. it can.
  • the ratio of generated stress is less than 60%, so that the deformation of the end portion of the tube 11 in the tube width direction ZD can be more reliably suppressed. Can do.
  • the flange portion 222 constituting the front end portion of the tank main body portion 22 is configured to be caulked and fixed by the protruding piece 213 of the core plate 21. In such a configuration, there is a concern that stress is concentrated on the end side in the tube width direction ZD of the tube insertion hole 211a when the crimping is fixed.
  • FIG. 11 is a cross-sectional view showing the main part of the core plate 21.
  • a depression 216 is intentionally provided so that a step is formed between the inclined portion 215 and the tube joint portion 211.
  • the recess 216 is provided to form a brazing reservoir for accumulating brazing material between the tube 11 and the inclined portion 215 when the tube 11 and the core plate 21 are joined by brazing.
  • the heat exchanger of the present disclosure may be applied to a refrigerant evaporator or refrigerant radiator of a vapor compression refrigeration cycle, an intercooler that cools intake air of an internal combustion engine, or the like.

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

Abstract

L'invention concerne un échangeur de chaleur configuré de sorte que, même si l'épaisseur d'une plaque centrale dans la direction de la largeur d'un tube est réduite, la formation d'un creux indésirable dans la plaque centrale soit évitée. La plaque centrale (21) de chacun des réservoirs de tête (20, 30) d'un échangeur de chaleur (1) comprend : une section de jonction de tube (211) dans laquelle est formée une pluralité de trous d'insertion de tube (211a); des sections de réception et d'accueil (212) entourant la section de jonction de tube et accueillant les extrémités avant (222) d'une section de corps de réservoir (22), qui sont situées à proximité de la plaque centrale; et des sections inclinées (215) permettant de relier la section de jonction de tube et les sections de réception et d'accueil et inclinées par rapport à la direction longitudinale du tube (21). Chacune des sections inclinées est située sur la plaque centrale de sorte qu'une première ligne virtuelle (VL1) qui s'étend de façon rectiligne le long de la section inclinée à partir d'une section de réception et d'accueil vers la section de jonction de tube et une deuxième ligne virtuelle (VL2) qui s'étend de façon rectiligne le long de la section de jonction de tube dans la direction du rayon principal d'une section transversale du tube s'intersectent à l'extérieur du tube dans la direction de la largeur du tube.
PCT/JP2016/063011 2015-07-17 2016-04-26 Échangeur de chaleur Ceased WO2017013918A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017529477A JPWO2017013918A1 (ja) 2015-07-17 2016-04-26 熱交換器
CN201680030767.6A CN107636413A (zh) 2015-07-17 2016-04-26 热交换器
DE112016003219.6T DE112016003219T5 (de) 2015-07-17 2016-04-26 Wärmetauscher
US15/741,826 US20180195805A1 (en) 2015-07-17 2016-04-26 Heat exchanger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015142835 2015-07-17
JP2015-142835 2015-07-17

Publications (1)

Publication Number Publication Date
WO2017013918A1 true WO2017013918A1 (fr) 2017-01-26

Family

ID=57834258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/063011 Ceased WO2017013918A1 (fr) 2015-07-17 2016-04-26 Échangeur de chaleur

Country Status (5)

Country Link
US (1) US20180195805A1 (fr)
JP (1) JPWO2017013918A1 (fr)
CN (1) CN107636413A (fr)
DE (1) DE112016003219T5 (fr)
WO (1) WO2017013918A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015127631A (ja) * 2013-11-27 2015-07-09 株式会社デンソー 熱交換器
JP2019066074A (ja) * 2017-09-29 2019-04-25 株式会社デンソー 熱交換器
US11092389B2 (en) 2015-10-15 2021-08-17 Denso Corporation Heat exchanger
KR20210105553A (ko) * 2020-02-19 2021-08-27 한온시스템 주식회사 열응력을 분산하는 헤더 구조를 가지는 열교환기

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102703322B1 (ko) * 2019-02-13 2024-09-06 한온시스템 주식회사 열교환기
JPWO2021049505A1 (fr) * 2019-09-13 2021-03-18

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582127A (en) * 1982-12-22 1986-04-15 Societe Anonyme Des Usines Chausson Tube end plate for heat exchanger with tubes and water boxes
US5664625A (en) * 1995-12-13 1997-09-09 Valeo Thermique Moteur Header plates for heat exchangers
JP2009216151A (ja) * 2008-03-10 2009-09-24 Denso Corp シール構造およびそれを用いた熱交換器
JP2014519005A (ja) * 2011-05-20 2014-08-07 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器
JP2015127631A (ja) * 2013-11-27 2015-07-09 株式会社デンソー 熱交換器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08327283A (ja) * 1995-05-30 1996-12-13 Sanden Corp 熱交換器の熱交換チューブ接合構造
US6745827B2 (en) * 2001-09-29 2004-06-08 Halla Climate Control Corporation Heat exchanger
US20090255657A1 (en) * 2008-04-15 2009-10-15 Denso Corporation Heat exchanger and method of manufacturing the same
JP4600506B2 (ja) * 2008-04-15 2010-12-15 株式会社デンソー 熱交換器の製造方法
DE102013208424A1 (de) 2013-05-07 2014-11-13 Behr Gmbh & Co. Kg Boden für einen Wärmetauscher, insbesondere für ein Kraftfahrzeug und Verfahren zur Herstellung des Bodens
JP5979277B2 (ja) 2015-05-13 2016-08-24 株式会社三洋物産 遊技機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582127A (en) * 1982-12-22 1986-04-15 Societe Anonyme Des Usines Chausson Tube end plate for heat exchanger with tubes and water boxes
US5664625A (en) * 1995-12-13 1997-09-09 Valeo Thermique Moteur Header plates for heat exchangers
JP2009216151A (ja) * 2008-03-10 2009-09-24 Denso Corp シール構造およびそれを用いた熱交換器
JP2014519005A (ja) * 2011-05-20 2014-08-07 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器
JP2015127631A (ja) * 2013-11-27 2015-07-09 株式会社デンソー 熱交換器

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015127631A (ja) * 2013-11-27 2015-07-09 株式会社デンソー 熱交換器
US11092389B2 (en) 2015-10-15 2021-08-17 Denso Corporation Heat exchanger
JP2019066074A (ja) * 2017-09-29 2019-04-25 株式会社デンソー 熱交換器
KR20210105553A (ko) * 2020-02-19 2021-08-27 한온시스템 주식회사 열응력을 분산하는 헤더 구조를 가지는 열교환기
US12235053B2 (en) 2020-02-19 2025-02-25 Hanon Systems Heat exchanger having header structure for dispersing thermal stress
KR102777721B1 (ko) * 2020-02-19 2025-03-11 한온시스템 주식회사 열응력을 분산하는 헤더 구조를 가지는 열교환기

Also Published As

Publication number Publication date
CN107636413A (zh) 2018-01-26
DE112016003219T5 (de) 2019-05-09
JPWO2017013918A1 (ja) 2017-11-02
US20180195805A1 (en) 2018-07-12

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