WO2021049505A1 - 熱交換器のタンク構造 - Google Patents

熱交換器のタンク構造 Download PDF

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Publication number
WO2021049505A1
WO2021049505A1 PCT/JP2020/034023 JP2020034023W WO2021049505A1 WO 2021049505 A1 WO2021049505 A1 WO 2021049505A1 JP 2020034023 W JP2020034023 W JP 2020034023W WO 2021049505 A1 WO2021049505 A1 WO 2021049505A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube insertion
insertion hole
header plate
heat exchanger
burring
Prior art date
Application number
PCT/JP2020/034023
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
小室　朗
大久保　厚
Original Assignee
株式会社ティラド
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 株式会社ティラド filed Critical 株式会社ティラド
Priority to JP2021545556A priority Critical patent/JPWO2021049505A1/ja
Priority to CN202080062023.9A priority patent/CN114341580A/zh
Priority to US17/641,147 priority patent/US20220282938A1/en
Publication of WO2021049505A1 publication Critical patent/WO2021049505A1/ja

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Classifications

    • 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
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • 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
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0443—Combination of units extending one beside or one above the other
    • 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
    • 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
    • F28F9/04—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
    • 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
    • F28F2270/00—Thermal insulation; Thermal decoupling
    • F28F2270/02—Thermal insulation; Thermal decoupling by using blind conduits

Definitions

  • the present invention relates to a tank structure of a heat exchanger suitable for a radiator for engine cooling water, an oil cooler, and other heat exchangers, and to improve the heat durability thereof.
  • the sealing surface 24 of the header plate 4a is formed flat as shown in FIG. 8B in order to narrow the width of the header plate. Then, between the tube insertion holes formed in the header plate 4a, a deformation prevention bead 7 for supporting the tank body 6 when crimping the tank body 6 and preventing the tank body 6 from being deformed is provided. It is provided.
  • a high burring 22 is formed on the long side portion of each tube insertion hole of the header plate 4a described in Patent Document 1, and a low burring is formed on the short side portion.
  • the brazed joint line on the short side is located outside the tank on the long side.
  • the thermal stress caused by the non-uniformity of the temperature distribution of the heat exchanger is generated. It was found that the concentration on the short side of the tube became extremely large. The stress concentration is remarkable in the tube at the end of the header plate 4a in the longitudinal direction.
  • an object of the present invention is to alleviate the concentration of thermal stress on the short side of the tube in the vicinity of the brazed portion between the tube and the header plate in the heat exchanger having the header plate having a narrow width.
  • the present invention according to claim 1 has a header having a large number of flat tube insertion holes 3 including a pair of opposite short side portions 1 and a pair of long side portions 2 connecting the two short side portions 1.
  • Plate 4 and A large number of flat tubes 5 having an end inserted into each of the tube insertion holes 3 and the insertion portion being brazed.
  • Each tube insertion hole 3 other than the end tube insertion hole 8 located at least at the end in the longitudinal direction is connected by a deformation prevention beat 7 formed along the longitudinal direction of the header plate 4.
  • the end tube insertion hole 8 is structured as a tank of a heat exchanger, characterized in that the deformation prevention beat 7 is not connected to the end tube insertion hole 8.
  • the present invention according to claim 2 relates to the tank structure of the heat exchanger according to claim 1.
  • a low burring 9 having a low height is formed on the edge of the short side 1 of each tube insertion hole 3, and at least the long side of each tube insertion hole 3 excluding the end tube insertion hole 8.
  • a high burring 10 having a height higher than that of the low burring 9 is formed in the portion 2.
  • the present invention according to claim 3 relates to the tank structure of the heat exchanger according to claim 1.
  • a low burring 9 having a low height is formed on the edge of the short side 1 of each tube insertion hole 3, and at least the long side of each tube insertion hole 3 excluding the end tube insertion hole 8.
  • a high burring 10 having a height higher than that of the low burring 9 is formed in the portion 2.
  • the low burring 9 is formed at least on the hole edges of both ends of the long side portion 2 of the end tube insertion hole 8, and the high burring is formed on the hole edges of the long side portion 2 excluding both ends thereof.
  • the present invention has a header having a large number of flat tube insertion holes 3 including a pair of opposite short side portions 1 and a pair of long side portions 2 connecting the two short side portions 1. Plate 4 and A large number of flat tubes 5 having an end inserted into each of the tube insertion holes 3 and the insertion portion being brazed.
  • the tank body 6 has a partition portion 19 for partitioning the tank body 6 in a plurality of directions in the longitudinal direction.
  • a dummy tube insertion hole 11 is formed in the header plate 4 in the vicinity of the partition portion 19, and has end tube insertion holes 8 and a large number of parallel tube insertion holes 3 on both sides of the dummy tube insertion hole 11.
  • the flat tube 5 is inserted into the tube insertion holes 3, 8 and 11, respectively.
  • a space between the dummy tube insertion hole 11 and each tube insertion hole 3 other than the end tube insertion hole 8 from the dummy tube insertion hole 11 to at least one is formed along the longitudinal direction of the header plate 4.
  • the tank structure of the heat exchanger is formed so that the deformation prevention bead 7 does not exist in the dummy tube insertion hole 11 and the end tube insertion hole 8 from the dummy tube insertion hole 11 to at least the first one.
  • the present invention according to claim 5 relates to the tank structure of the heat exchanger according to claim 4.
  • a low burring 9 is formed on the short side portion 2 of each tube insertion hole 3.
  • the high burring 10 is provided on the long side 1 of each tube insertion hole 3 excluding at least the first end tube insertion hole 8 from the dummy tube insertion hole 11 and the dummy tube insertion hole 11.
  • the end tube insertion hole 8 from the dummy tube insertion hole 11 to at least the first one has a heat exchanger tank structure in which a low burring 9 is provided on the entire circumference thereof.
  • the space between the tube insertion holes 3 other than the end tube insertion holes 8 located at least at the ends of the header plate 4 in the longitudinal direction is formed along the longitudinal direction of the header plate 4.
  • the deformation prevention beat 7 is connected, and the deformation prevention beat 7 is not connected to the end tube insertion hole 8.
  • the bending rigidity of the header plate 4 at that portion is reduced, and by deforming the portion, the header plate 4 is originally inserted into the end portion.
  • the thermal deformation due to the thermal stress greatly generated by the flat tube 5 is effectively absorbed.
  • a low burring 9 having a low height is formed at the hole edge of the short side portion 1 of each tube insertion hole 3, and each tube insertion excluding the end tube insertion hole 8 is formed.
  • a high burring 10 having a height higher than that of the low burring 9 was formed on the long side portion 2 of the hole 3, and a low burring 9 was formed on the entire circumference of the hole edge of the end tube insertion hole 8. It is a thing. As a result, the brazed joint line with the flat tube 5 at the short side 1 of the end tube insertion hole 8 becomes the same as that at the long side 2, so that the stress concentration on the flat tube 5 at the short side 1 is the same. Is relaxed.
  • low burring 9 is formed on the hole edges of both ends of the long side portion 2 of the end tube insertion hole 8, and the hole edges of the long side portion 2 excluding both ends thereof are formed. , High burring 10 is formed.
  • the flat tube 5 inserted therein is expanded.
  • the openability can be made substantially the same as that of the flat tube 5 of the other portion.
  • An expansion jig is inserted into the opening end of the flat tube 5 to be inserted into the insertion holes 3 and 8, and the outer circumference of the flat tube 5 is enlarged to expand the outer circumference of the flat tube 5 so that the insertion holes 3 and the outer circumference of the flat tube 5 are expanded.
  • the invention according to claim 4 has a partition portion 19 in the tank body 6 for partitioning the partition portion 19 in the longitudinal direction, and a dummy tube insertion hole 11 is formed in a header plate 4 in the vicinity of the partition portion 19, and the dummy tube is formed.
  • An end tube insertion hole 8 and a large number of parallel tube insertion holes 3 are arranged on both sides of the insertion hole 11, and the dummy tube insertion hole 11 and the end tube from the dummy tube insertion hole 11 to at least the first end tube are arranged.
  • Each tube insertion hole 3 other than the insertion hole 8 is connected by a deformation prevention beat 7 formed along the longitudinal direction of the header plate 4, and is connected from the dummy tube insertion hole 11 and the dummy tube insertion hole 11 thereof.
  • the deformation prevention bead 7 is formed so as not to exist in at least the first end tube insertion hole 8. As a result, the bending rigidity of the header plate 4 at the portion where the deformation prevention bead 7 is lost is reduced, and the deformation of the header plate 4 absorbs the deformation due to the thermal stress generated in the flat tube 5 inserted therein.
  • the peripheral edge of the header plate 4 is caulked and fixed to the tank body 6, the applied load is supported by the deformation prevention beat 7 formed in the other tube insertion hole 3, so that the tank deformation prevention function is ensured.
  • the thermal stress generated in the flat tube 5 inserted into the end tube insertion hole 8 is reduced.
  • a high burring 10 is provided on the long side 2 of each tube insertion hole 3 except for the dummy tube insertion hole 11 and the end tube insertion hole 8, and the end tube insertion hole is inserted.
  • the hole 8 has a low burring 9 formed on the entire circumference thereof.
  • FIG. 1 is an exploded perspective view (A) of the tank structure of the heat exchanger according to the first embodiment of the present invention, and a perspective view (B) of a main part of the header plate 4 thereof.
  • 2A and 2B are plan views (A), BB arrow view (B), CC arrow view (C), and DD arrow view of the header plate 4 of the first embodiment.
  • FIG. 3 is a perspective view of the header plate 4 of the tank structure of the heat exchanger of the second embodiment of the present invention.
  • FIG. 4 is a plan view (A), a BB arrow view (B), a CC arrow view (C), and a DD arrow view of the header plate 4 of the second embodiment.
  • FIG. 5 is a front view of the tank structure of the heat exchanger according to the third embodiment of the present invention.
  • 6 is a plan view of the main part of the VI-VI arrow in FIG. 5, a cross-sectional view taken along the line BB of FIG. 5 (A), and a cross-sectional view taken along the line CC of FIG.
  • FIG. 7 is a plan view of the tank structure of the heat exchanger of the fourth embodiment.
  • FIG. 8 is a plan view (A) of a main part of the tank structure of the conventional heat exchanger, a sectional view (B) of BB of the tank structure (A), and a perspective view (C) of the main part of the tank structure.
  • the heat exchanger of each embodiment described below can be used as a radiator for cooling engine cooling water, a sub-radiator for cooling auxiliary cooling water, and the like.
  • FIG. 1 and 2 show the tank structure of the heat exchanger according to the first embodiment of the present invention
  • FIG. 1 (A) is an exploded perspective view thereof
  • FIG. 1 (B) is a perspective view of a header plate 4 used for the tank structure.
  • FIG. 2A is a plan view of a main part of the header plate 4
  • FIGS. 2B to 2G are cross-sectional views and perspective views of FIG. 2A.
  • flat tubes 5 and corrugated fins 12 are alternately arranged in parallel to form a core, and the end portion of the flat tube 5 is provided with a tube insertion hole 3 and an end portion on the bottom surface 41 of the header plate 4. It is inserted into the tube insertion hole 8 and the insertion portion is brazed and fixed.
  • a pair of side plates 15 are arranged on both sides in the width direction of the core.
  • the inner circumference of each tube insertion hole 3 and the two end tube insertion holes 8 is formed to be slightly larger than the outer circumference of the flat tube 5 inserted therein, and later when the flat tube 5 is inserted there.
  • An expansion jig is inserted into the tip portion thereof, and the expansion jig is expanded by plastic deformation, so that the hole edge of each tube insertion hole 3 and the end tube insertion hole 8 and the end portion of the flat tube 5 are in close contact with each other. After that, the flat tube 5 and each tube insertion hole 3 and the end tube insertion hole 8 are brazed and fixed integrally.
  • the tank body 6 is made of a synthetic resin material in this example, and a small flange 6a is formed on the outer circumference, and tooth portions 6b are integrally projected on the inner circumference at regular intervals.
  • a tube relief portion 6c is formed between the tooth portions 6b, and an edge portion on the long axis side of the tip portion of each flat tube 5 is fitted therein.
  • the seal ring 13 is arranged between the tooth portion 6b and the inner surface of the tank body 6.
  • the caulking claws 16 provided on the header plate 4 at regular intervals are crimped to the outer periphery of the small flange 6a of the tank body 6 to form the tank structure of the heat exchanger.
  • the lower tank structure is omitted in FIG.
  • the header plate 4 of this example is formed in a flat square shape.
  • a large number of flat tube insertion holes 3 composed of a pair of opposite short side portions 1 and a pair of long side portions 2 connecting the two short side portions 1 are provided at regular intervals. It is pierced in.
  • the tube insertion hole 3 At both ends of the header plate 4 in the longitudinal direction (the left side is omitted in FIGS. 1 and 2 (A)), in this example, as with the tube insertion hole 3, a pair of short sides 1 and a pair of lengths are used.
  • Two end tube insertion holes 8 including side portions 2 are bored. The inner circumference of each tube insertion hole 3 and the end tube insertion hole 8 is the same.
  • a pair of parallel anti-deformation beats 7 projecting toward the inner surface side of the tank body 6 between the tube insertion holes 3 ,It is connected.
  • the deformation prevention beat 7 is not connected to the two end tube insertion holes 8.
  • the rigidity around the two end tube insertion holes 8 is formed to be weaker than that around the other tube insertion holes 3.
  • burrings are formed on the hole edges of the tube insertion holes 3 and the end tube insertion holes 8 so as to project toward the inner surface side of the tank body 6.
  • a high burring 10 having a high height from the bottom surface 41 of the header plate 4 to the tip of the burring is formed on the hole edges of the pair of long side portions 2 of each tube insertion hole 3.
  • a low burring 9 having a height lower than that of the high burring 10 is formed on the hole edge of the pair of short side portions 1 of each tube insertion hole 3.
  • the low burring 9 and the high burring 10 are smoothly connected.
  • a low burring 9 having a height lower than that of the high burring 10 is formed on the edge of the end tube insertion hole 8, and the low burring 9 is an end.
  • the height is maintained at a substantially uniform height over the entire circumference of the portion tube insertion hole 8.
  • the brazed joint line with the flat tube 5 at the short side 1 of the end tube insertion hole 8 becomes the same as that at the long side 2, so that the stress concentration on the flat tube 5 at the short side 1 is the same. Is relaxed.
  • FIGS. 3 and 4 are the second embodiment of the present invention, and the difference from the first embodiment is that the two end tubes provided at both ends in the longitudinal direction of the header plate 4. It has a burring shape at the edge of the insertion hole 8.
  • low burring 9 is formed at the hole edges of both ends of the long side portion 2 of the end tube insertion hole 8, and the length excluding both ends thereof.
  • a high burring 10 is formed on the hole edge of the side portion 2. In this way, by making the long side portion 2 of the end tube insertion hole 8 the same high burring 10 as the other tube insertion holes 3 except for both ends thereof, the flat tube 5 inserted therein is expanded.
  • the openability can be made substantially the same as that of the flat tube 5 of the other portion. Further, since the low burring 9 is formed on the hole edges at both ends of the long side portion 2 of the end tube insertion hole 8, the stress concentration on the flat tube 5 at the joint portion with the short side portion 1 is high. It will be relaxed.
  • FIGS. 5 and 6 are the third embodiment of the present invention
  • FIG. 5 is a front view thereof
  • FIG. 6 (A) is a view taken along the line VI-VI of FIG. 5
  • FIG. 6 (B) is the same figure (A).
  • BB arrow view
  • (C) is a CC arrow view of the same figure (A)
  • FIG. 6 (D) is a DD arrow view of the same figure (A).
  • the tank structure of this heat exchanger includes the first tank portions 17 on both sides of the upper and lower tanks composed of the tank body 6 and the header plate 4 via valleys provided in the middle in the longitudinal direction. It has a second tank portion 18. As shown in FIG.
  • a pair of partition portions 19 for partitioning the inside of the tank in the longitudinal direction are arranged to face each other inside the tank main body 6, and seal rings 13 having annular ends thereof are arranged so as to face each other. It is connected to the inner surface of the header plate 4 via.
  • a dummy tube insertion hole 11 is formed in the header plate 4 at a position corresponding to the vicinity of the partition portion 19, and the dummy tube insertion hole 11 is sandwiched between the dummy tube insertion holes 11 and both sides thereof.
  • the end tube insertion hole 8 and the tube insertion hole 3 are arranged in order.
  • the end portion of the flat tube 5 is inserted into each of the insertion holes 3, 8 and 11, and the flat tube 5 and each insertion portion are brazed and fixed.
  • the first flow path 20 and the second flow path 21 composed of an aggregate of a large number of flat tubes 5 are arranged on both sides of the dummy tube insertion hole 11 in the longitudinal direction, and different heat media are arranged in these flow paths. Is distributed.
  • engine cooling water can be circulated in the first flow path 20, and auxiliary cooling water can be circulated in the second flow path 21.
  • auxiliary cooling water can be circulated in the second flow path 21.
  • the dummy tube insertion hole 11 and the end tube insertion hole 8 from the dummy tube insertion hole 11 to the first are formed so that the deformation prevention bead 7 does not exist.
  • a high burring 10 is formed on the long side portion 2 of the hole edge portion of each tube insertion hole 3, and a low burring 9 (not shown) is formed on the short side portion 1. Further, low burring 9 is formed at each edge of the end tube insertion hole 8. By doing so, the rigidity of the peripheral edge of the hole edge of the end tube insertion hole 8 and the peripheral edge of the dummy tube insertion hole 11 is formed to be weaker than the other rigidity, and the dummy tube insertion hole 11 and the end are formed.
  • the stress generated in the flat tube 5 inserted into the partial tube insertion hole 8 is absorbed. Further, since the brazed joint line with the flat tube 5 in the short side portion 1 of the end tube insertion hole 8 is the same as that in the long side portion 2, the stress concentration on the flat tube 5 in the short side portion 1 is concentrated. It will be relaxed.
  • FIG. 7 is a plan view of the header plate 4 of the fourth embodiment of the present invention, and the difference of the present invention from the third embodiment is that the dummy tube insertion holes 11 are adjacent to both sides of each of the three ends. This is the point where the part tube insertion hole 8 is formed. As a result, the stress concentration on the flat tube 5 at the short side 1 of the end tube insertion hole 8 is further relaxed.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
PCT/JP2020/034023 2019-09-13 2020-09-01 熱交換器のタンク構造 WO2021049505A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021545556A JPWO2021049505A1 (zh) 2019-09-13 2020-09-01
CN202080062023.9A CN114341580A (zh) 2019-09-13 2020-09-01 热交换器的箱结构
US17/641,147 US20220282938A1 (en) 2019-09-13 2020-09-01 Tank structure of heat exchanger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-167526 2019-09-13
JP2019167526 2019-09-13

Publications (1)

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WO2021049505A1 true WO2021049505A1 (ja) 2021-03-18

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PCT/JP2020/034023 WO2021049505A1 (ja) 2019-09-13 2020-09-01 熱交換器のタンク構造

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JP (1) JPWO2021049505A1 (zh)
CN (1) CN114341580A (zh)
WO (1) WO2021049505A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN115667834A (zh) * 2020-07-17 2023-01-31 株式会社T.Rad 热交换器的集管板结构

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS59134784U (ja) * 1983-02-26 1984-09-08 カルソニックカンセイ株式会社 熱交換器用タンク
WO2000022366A1 (en) * 1998-10-09 2000-04-20 S.C. Romradiatoare S.A. High efficiency heat exchanger with oval tubes
WO2017069280A1 (ja) * 2015-10-22 2017-04-27 株式会社ティラド 熱交換器およびその組立て方法
JP2019035518A (ja) * 2017-08-10 2019-03-07 株式会社ティラド 熱交換器の製造方法および熱交換器

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