WO2022107868A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2022107868A1
WO2022107868A1 PCT/JP2021/042509 JP2021042509W WO2022107868A1 WO 2022107868 A1 WO2022107868 A1 WO 2022107868A1 JP 2021042509 W JP2021042509 W JP 2021042509W WO 2022107868 A1 WO2022107868 A1 WO 2022107868A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
vertical
plates
flow path
heat exchanger
Prior art date
Application number
PCT/JP2021/042509
Other languages
English (en)
Japanese (ja)
Inventor
周平 松坂
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 JP2022563836A priority Critical patent/JPWO2022107868A1/ja
Publication of WO2022107868A1 publication Critical patent/WO2022107868A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • cup-shaped plates are laminated to form a first flow path and a second flow path alternately every other plate, and heat exchange is performed between the two fluids.
  • the exchanger Regarding the exchanger.
  • FIGS. 4 (A) and 4 (B) The structure of the oil cooler described in Patent Document 1 below is shown in FIGS. 4 (A) and 4 (B).
  • the oil cooler is formed in a cup shape in which the outer periphery of each of the plates 2a and 3a is formed with a stepped portion including vertical portions 7a and 9a and inclined portions 6a and 8a. Then, the vertical portions 7a and 9a of the first plate 2a and the second plate 3a and the inclined portions 6a and 8a were joined to each other and laminated to form flow paths 4a and 5a between the plates 2a and 3a. It is a thing.
  • the convex portion 11a protrudes from the base plane 1a of one of the opposing first plates 2a, and the convex portion 11a is joined to the base plane 1a of the other second plate 3a. ing.
  • the convex portion 11a is formed on the base plane 1a of one of the first plates 2a as shown in FIG. 4, and the convex portion 11a is formed. Is to be joined to the other second plate 3a, it is necessary to form a convex portion 11a having a high height. However, it is difficult to form a convex portion 11a having a high height from the viewpoint of molding processability. Therefore, in the flow paths 4a and 5a having a high flow path, it is necessary to form convex portions 11a on both of the opposing plates 2a and 3a and to join the tops of the opposing convex portions 11a to each other.
  • the height of the flow path is defined by the "stepped portion on the outer periphery of each plate 2a and 3a", but it is difficult to form the height of the facing convex portion 11a according to the stepped portion.
  • FIG. 5 shows the problems caused by it. That is, when the height of the opposing convex portions 11a is formed low, a gap S is formed between the opposing convex portions 11a as shown in FIG. 5A. In this case, since there is a possibility that their joining may be defective, the convex portion 11a is formed so as not to be lowered in height. However, by forming in this way, as shown in FIG.
  • the present invention according to claim 1 is a cup-shaped first plate in which an aluminum material or an aluminum alloy plate material is raised with respect to the entire peripheral edge of the base plane 1 as a whole and inclined outward from the center thereof. 2 and the second plate 3 are alternately laminated with an interval in the thickness direction, and the first flow path 4 and the second flow path 5 are alternately formed between the plates in the stacking direction.
  • the first plate 2 has an inclined portion 6 that is inclined outward at an acute angle with respect to the perpendicular line L erected from the peripheral edge of the base plane 1, and stands substantially parallel to the perpendicular line L from the edge of the inclined portion 6.
  • the raised vertical portion 7 and the inclined portion 6 raised from the edge of the vertical portion 7 at an acute angle outward with respect to the perpendicular line L.
  • the second plate 3 has a vertical portion 9 raised substantially parallel to the perpendicular line L from the peripheral edge of the base plane 1, and an inclined portion 8 raised at an acute angle outward from the peripheral edge of the vertical portion 9.
  • a vertical portion 9 raised substantially parallel to the perpendicular line L from the edge of the inclined portion 8 is provided.
  • the inclined portion 6 and the vertical portion 7 of the first plate 2, and the inclined portion 8 and the vertical portion 9 of the second plate 3 are formed at obtuse angles, respectively, and each of the plates 2 and 3 is formed in a stepped cup shape.
  • the vertical portions 7 and 9 of the first plate 2 and the second plate 3 and the inclined portions 6 and 8 are aligned with each other.
  • a large number of convex portions 11 having a dome-shaped cross section are formed on the opposite surface sides of the first plate 2 and the second plate 3 of the second flow path 5, and the tops of the convex portions 11 are in contact with each other.
  • Each contact part of each plate is brazed and joined,
  • the heat is characterized in that the plate thickness of the plate material is 0.4 mm to 1.0 mm, the diameter D of the convex portion 11 is 2 mm to 9 mm, and the height of the second flow path 5 is 0.8 mm to 2.6 mm. It is an exchanger.
  • the present invention according to claim 2 is the heat exchanger according to claim 1.
  • a gap is formed between the inclined portion 6 of the first plate 2 and the inclined portion 8 of the second plate in a free state when the plates are laminated. It is a heat exchanger configured so that the convex portions 11 come into contact with each other by eliminating the gap when each plate is compressed in the thickness direction.
  • the plate thickness of the plate material is 0.4 mm to 1.0 mm
  • the diameter D of the convex portion 11 is 2 mm to 9 mm
  • the height of the second flow path 5 is 0.8 mm.
  • the invention according to claim 2 has a gap between the inclined portion 6 of the first plate 2 and the inclined portion 6 of the second plate 3 in a free state when the plates 2 and 3 are laminated. When each plate is compressed in the thickness direction, the gap is eliminated so that the convex portions 11 come into contact with each other. As a result, when the plates are compressed in the thickness direction in the temporary fixing before brazing, the convex portions 11 are surely in contact with each other, so that they can be surely brazed.
  • FIG. 1A and 1B are heat exchangers of the present invention
  • FIG. 1A is a cross-sectional view taken along line I-I of FIG. 2
  • FIG. 1B is an enlarged view of part B of FIG. 1A
  • 2A and 2B are a plan view (A) and a front view (B) of the heat exchanger
  • 3A and 3B are a plan view (A) and a front view (B) of the second plate 3 used in the heat exchanger
  • FIGS. 3C and 3D are a plan view (C) and a front view (D) of the first plate 2.
  • FIG. 4 is a vertical cross-sectional view (A) of the conventional heat exchanger
  • FIG. 4 (B) is an enlarged view of part B of FIG. 4 (A).
  • FIG. 5 is an explanatory diagram showing a problem of a heat exchanger in which a convex portion 11a is formed on each of the plates 2 and 3.
  • FIG. 1 (A) is a vertical sectional view thereof
  • FIG. 1 (B) is an enlarged view of part B of FIG. 1 (A)
  • FIG. 2 is a plan view thereof.
  • A), front view (B), and FIG. 3 are a plan view (A) and a front view (B) of the second plate 3 constituting the heat exchanger, and a plan view (C) and a front view of the first plate 2. (D).
  • This heat exchanger is made of a press-formed body of an aluminum material or an aluminum alloy plate material, and is a cup-shaped first plate 2 that is stepped from the center to the outside with respect to the entire peripheral edge of the base plane 1 as a whole.
  • the second plate 3 are alternately laminated with an interval in the thickness direction, and are formed alternately between the plates in the stacking direction of the first flow path 4 and the second flow path 5.
  • the first plate 2 has an inclined portion 6 raised with an acute angle outward with respect to a perpendicular line L erected from the peripheral edge of the base plane 1, and an inclined portion 6 thereof.
  • the vertical portion 7 raised substantially parallel to the vertical line L from the edge, and an inclined portion 6 raised from the edge of the vertical portion 7 at an acute angle outward with respect to the vertical line L.
  • the inclined portion 6 and the vertical portion 7 of the first plate 2 are formed in the reverse order of formation, and the vertical portion 9 is raised substantially parallel to the perpendicular line L from the peripheral edge of the base plane 1.
  • a vertical portion 8 is provided on the peripheral edge of the vertical portion 9 so as to be inclined outward at a sharp angle, and a vertical portion 9 which is raised substantially parallel to the vertical line L from the edge of the inclined portion 8. .
  • the inclined portion 6 and the vertical portion 7 of the first plate 2 and the inclined portion 8 and the vertical portion 9 of the second plate 3 are each bent at an obtuse angle, and each of the plates 2 and 3 is formed in a stepped cup shape. ing.
  • the vertical portions 7 of the first plate 2 and the vertical portions 9 of the second plate 3 are aligned with each other, and the inclined portions 6 of the first plate 2 and the inclined portions 8 of the second plate 3 are aligned with each other.
  • Each plate 2, 3 is connected.
  • the inner fin 10 is interposed in the first flow path 4. Further, a large number of convex portions 11 are formed on the base plane 1 of the first plate 2 and the second plate 3.
  • the second plate 3 has a large number of protrusions 11 projecting on the second flow path 5 side of the base plane 1, and the first plate 2 has a large number of protrusions on the second flow path 5 side of the base plane 1.
  • the part 11 is projected.
  • the forming position of the convex portion 11 of the first plate 2 and the forming position of the convex portion 11 of the second plate 3 are arranged so as to be substantially aligned with each other.
  • the entrance / exit 16 of the base plate 14 communicates with the first flow path 4 side
  • the pipe 15 communicates with the second flow path 5 side.
  • the fluid to be cooled flows in from the inlet / outlet 16 of the base plate 14, and the refrigerant flows in from the pipe 15. Then, heat exchange is performed between the refrigerant and the fluid to be cooled.
  • the feature of the heat exchanger of the present invention is that the top of the convex portion 11 formed on the base plane 1 of the first plate 2 and the top of the convex portion 11 formed on the base plane 1 of the second plate 3 come into contact with each other. , The second flow path 5 is formed. As shown in FIG. 1B, these convex portions 11 have a dome-shaped cross section.
  • the plate thickness of the plate material of the first plate 2 and the second plate 3 is formed to be 0.4 mm to 1.0 mm.
  • the diameter D of the convex portion 11 formed on the base plane 1 of the first plate 2 and the second plate 3 is formed to be 2 mm to 9 mm.
  • the height of the second flow path 5 is formed to be 0.8 mm to 2.6 mm.
  • each convex portion 11 formed on each of the plates 2 and 3 is preferably approximately half the height of the second flow path 5 (0.4 mm to 1.3 mm). As the inclination angle of the inclined portion 6 of the first plate 2 and the inclination angle of the inclined portion 8 of the second plate 3, an optimum inclination angle can be appropriately adopted.
  • the present invention is mainly a caseless heat exchanger and can be used for an oil cooler or the like.
  • Base plane 2 1st plate 3 2nd plate 4 1st flow path 5 2nd flow path 6 Inclined part 7 Vertical part 8 Inclined part 9 Vertical part 10 Inner fin 11 Convex part 12 Bottom plate 13 Top plate 14 Base plate 15 Pipe 16 Doorway S Gap N Deformation part L Perpendicular line D Diameter of convex part 11

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

Abstract

L'invention concerne un échangeur de chaleur obtenu au moyen de la stratification de plaques en forme de coupelle comportant, sur leur périphérie externe, une surface étagée. Lorsqu'un premier passage d'écoulement et un second passage d'écoulement sont formés, des saillies en forme de dôme, faisant saillie vers l'intérieur du second passage d'écoulement, sont façonnées à partir de chaque plaque parmi les plaques s'opposant les unes aux autres et comportant le second passage d'écoulement interposé entre elles, et lesdites saillies sont reliées les unes aux autres, ce qui permet d'empêcher la déformation de la surface de base de chaque plaque et d'assurer en même temps l'aptitude au façonnage des saillies.　Une pluralité de saillies (11), présentant une section transversale en forme de dôme, sont façonnées dans les surfaces opposées respectives d'une première plaque (2) et d'une seconde plaque (3) d'un second passage d'écoulement (5) ; les sommets des saillies (11) sont mis en contact les uns avec les autres ; les parties de contact desdites plaques sont reliées par brasage ; l'épaisseur de plaque du matériau de plaque des plaques (2, 3) est réglé pour être compris entre 0,4 mm et 1,0 mm ; le diamètre (D) des saillies (11) façonnées sur la surface de base (1) des plaques (2, 3) est compris entre 2 mm et 9 mm ; et la hauteur du second passage d'écoulement (5) est comprise entre 0,8 mm et 2,6 mm.
PCT/JP2021/042509 2020-11-20 2021-11-11 Échangeur de chaleur WO2022107868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022563836A JPWO2022107868A1 (fr) 2020-11-20 2021-11-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-193098 2020-11-20
JP2020193098 2020-11-20

Publications (1)

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WO2022107868A1 true WO2022107868A1 (fr) 2022-05-27

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WO (1) WO2022107868A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10206067A (ja) * 1997-01-27 1998-08-07 Honda Motor Co Ltd 熱交換器の支持構造
JP2000146477A (ja) * 1998-11-17 2000-05-26 Calsonic Corp 積層型熱交換器
JP2007248031A (ja) * 2006-03-20 2007-09-27 T Rad Co Ltd 積層型熱交換器およびその製造方法
JP2013029296A (ja) * 2011-07-29 2013-02-07 T Rad Co Ltd ヘッダープレートレス熱交換器
JP2019070474A (ja) * 2017-10-06 2019-05-09 株式会社ティラド ケースレスオイルクーラ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10206067A (ja) * 1997-01-27 1998-08-07 Honda Motor Co Ltd 熱交換器の支持構造
JP2000146477A (ja) * 1998-11-17 2000-05-26 Calsonic Corp 積層型熱交換器
JP2007248031A (ja) * 2006-03-20 2007-09-27 T Rad Co Ltd 積層型熱交換器およびその製造方法
JP2013029296A (ja) * 2011-07-29 2013-02-07 T Rad Co Ltd ヘッダープレートレス熱交換器
JP2019070474A (ja) * 2017-10-06 2019-05-09 株式会社ティラド ケースレスオイルクーラ

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JPWO2022107868A1 (fr) 2022-05-27

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