WO2011105369A1 - Corrugated fin and heat exchanger with same - Google Patents
Corrugated fin and heat exchanger with same Download PDFInfo
- Publication number
- WO2011105369A1 WO2011105369A1 PCT/JP2011/053840 JP2011053840W WO2011105369A1 WO 2011105369 A1 WO2011105369 A1 WO 2011105369A1 JP 2011053840 W JP2011053840 W JP 2011053840W WO 2011105369 A1 WO2011105369 A1 WO 2011105369A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flat plate
- groove
- pair
- corrugated fin
- plate portion
- Prior art date
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like 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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
-
- 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
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- 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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
-
- 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
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- 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
- F28D2021/0091—Radiators
- F28D2021/0094—Radiators for recooling the engine coolant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
-
- 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 a corrugated fin for radiating heat of a heat exchange medium and a heat exchanger including the same in a heat exchanger such as a radiator, an oil cooler, and an aftercooler.
- an engine, a radiator, a cooling fan device, and the like are installed in a predetermined arrangement. Then, the cooling fan device is driven to generate a flow of cooling air that passes through the radiator, thereby cooling the engine cooling water circulated between the engine and the radiator.
- the radiator mainly includes an upper tank, a lower tank, a plurality of tubes, and fins.
- the upper tank and the lower tank are connected by a plurality of tubes arranged at a predetermined interval.
- the engine cooling water sent out from the engine is temporarily stored in the upper tank, is stored in the lower tank through a plurality of tubes, and is then returned to the engine.
- the fins are arranged between adjacent tubes and are joined to the tubes by joining means such as brazing.
- flat plate portions each having a pair of side edges facing each other and a pair of end sides facing each other, and joint portions connected to the side edges of the flat plate portion are alternately bent and formed in a corrugated shape.
- corrugated fins see, for example, Patent Documents 1 to 3).
- a corrugated fin is manufactured through a groove forming process and a corrugated forming process, for example.
- the groove forming step is a step of forming a plurality of grooves on the plate surface by passing a strip-shaped thin plate drawn out from a thin plate coil between a pair of grooves for forming a groove, or by pressing using a press machine.
- the corrugating process is a process in which the strip-shaped thin plate after the groove forming process is passed between a pair of corrug forming rolls so that the flat plate portion and the joining portion are alternately bent in a corrugated shape. It is.
- the section modulus of the cut surface along the direction in which the pair of end sides is arranged can be increased.
- the rigidity of a flat plate part can be improved with respect to the bending effect
- the rigidity of the flat plate portion is increased with respect to a bending action that brings the pair of end sides closer to each other. I can't.
- the section modulus of the cut surface along the direction in which the pair of side sides is arranged can be increased.
- the rigidity of a flat plate part can be improved with respect to the bending action which makes a pair of edge
- the rigidity of the flat plate portion is increased with respect to a bending action that brings the pair of side sides closer to each other. I can't.
- the conventional corrugated fin has a problem that an unexpected part may be bent at the time of manufacture, more specifically, in the corrugating process, and the error of the shape dimension becomes large. For this reason, when assembling a radiator core by alternately laminating corrugated fins and tubes, errors in the shape dimensions of the corrugated fins may cause warpage of the radiator core, making it difficult to improve product accuracy. There is a problem. Also, if you try to correct the corrugated fin shape error, it will take extra effort and time, and if you try to assemble the corrugated fin shape error so as to offset each other, advanced skills are required. There is a problem that production becomes difficult.
- the present invention has been made in view of the above-described problems, and can reliably prevent the occurrence of bending at an unexpected part during production, thereby improving product accuracy and facilitating production. It is an object of the present invention to provide a corrugated fin and a heat exchanger including the corrugated fin.
- the corrugated fin according to the first aspect of the present invention comprises: For heat exchangers in which flat plate portions each having a pair of opposite sides and a pair of opposite sides and joint portions provided continuously on the sides of the flat plate portions are alternately bent in a corrugated shape.
- the joining portion has a flat surface joined to a tube through which a heat exchange medium is circulated,
- the flat plate portion has at least one concave portion or convex portion at an arbitrary cut surface in two directions of a direction in which the pair of side sides are arranged and a direction in which the pair of end sides are arranged.
- the flat surface of the joint is formed in a planar shape (second invention).
- the flat surface of the joint is formed in a curved surface shape (third invention).
- the heat exchanger according to the fifth invention is A corrugated fin according to any one of the first to fourth inventions is provided.
- At least one concave portion or convex portion is formed on the flat plate portion at any cut surface in two directions, ie, the direction in which the pair of side sides are arranged and the direction in which the pair of end sides are arranged.
- the section modulus of the cut surface along the direction in which the pair of end sides is arranged can be increased, and the section coefficient of the cut surface along the direction in which the pair of side sides is arranged can be increased.
- the rigidity of the flat plate portion can be enhanced with respect to both the bending action for bringing the pair of side sides closer and the bending action for bringing the pair of end sides closer.
- the recessed part or convex part which is provided in a flat plate part is not provided in a junction part. Accordingly, a large difference in rigidity can be provided between the flat plate portion and the joint portion, and it can be easily and reliably bent at the boundary portion between the flat plate portion and the joint portion. According to the corrugated fin of the first invention, it is possible to reliably prevent an unexpected portion from being bent at the time of manufacturing the corrugated fin, and to suppress an error in the shape dimension of the corrugated fin.
- the corrugated fin and the tube can be joined more firmly, and the heat dissipation effect by the corrugated fin can be further enhanced.
- the rigidity of the flat plate portion can be more reliably increased, and it can be more easily and reliably bent at the boundary portion between the flat plate portion and the joint portion.
- Part X enlarged perspective view of FIG. FIG. 2 is an explanatory diagram of the structure of the flat plate portion as viewed from the direction of the arrow Y (a), a sectional view taken along the line AA in FIG. 2A, a sectional view taken along the line BB in FIG. ) B'-B 'sectional view (d) Z arrow main part enlarged view of FIG.
- FIG. 1 is an overall perspective view of a radiator including a corrugated fin according to the first embodiment of the present invention.
- a radiator 1 shown in FIG. 1 is a device that dissipates heat obtained from an engine by engine coolant (heat exchange medium) circulated between the radiator 1 and an engine (not shown).
- the radiator 1 mainly includes an upper tank 2, a lower tank 3, a tube 4, and a corrugated fin 5.
- the upper tank 2 and the lower tank 3 are connected by a plurality of tubes 4. Thereby, the engine cooling water sent out from the engine can be temporarily stored in the upper tank 2, stored in the lower tank 3 through the plurality of tubes 4, and then returned to the engine.
- the radiator core 6 is assembled by alternately stacking the tubes 4 and the corrugated fins 5.
- the tube 4 is formed of a flat tube member having an engine cooling water flow passage 4a therein.
- a large number of tubes 4 are arranged with a predetermined pitch Pa in the width direction RW of the radiator 1 and with a predetermined gap S in the depth direction RD of the radiator 1.
- the corrugated fins 5 are arranged between the tubes 4 adjacent to each other in the width direction (RW) of the radiator 1.
- the corrugated fins 5 are formed by alternately bending the flat plate portions 5a and the joining portions 5b into a corrugated shape.
- the flat plate portion 5a has a pair of side edges 11 and 11 'facing each other in the width direction (RW) of the radiator 1 and a pair of end edges 12 and 12' facing each other in the depth direction (RD) of the radiator 1. It is a rectangular plate part.
- a plurality of groove-like recesses 13 are equally spaced at a predetermined pitch Pb in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Is provided.
- the groove-like recess 13 is linearly inclined in the direction from the one side 11 to the other side 11 ′ as it proceeds in the direction from the one end 12 to the other end 12 ′. It is an extending recess.
- the groove-like recesses 13 are arranged so that a part of the groove-like recesses 13 adjacent to each other overlap.
- the arrangement pitch Pb, the inclination angle, the length and width of the groove-like recess 13 are determined.
- part between the groove-shaped recessed parts 13 adjacent to each other becomes the stripe-shaped convex part 14 relatively.
- the flat plate portion 5a has a plurality of recesses 16 formed by a plurality of groove-like recesses 13 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Will have.
- the flat plate portion 5a has a plurality of convex portions 17 and 18 formed by a plurality of line-like convex portions 14 and 15 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. It will be.
- the flat plate portion 5a is a recess formed by the groove-like recess 13 in an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged. 16 will be included.
- the flat plate part 5a has the convex parts 17 and 18 by the streak-like convex parts 14 and 15 in an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 'are arranged.
- FIG. 3 (c) in the cross section taken along line BB of the flat plate portion 5a, there is one concave portion 16 due to the groove-shaped concave portion 13 or one convex portion 18 due to the line-shaped convex portion 15.
- FIG. 4D in the cross section taken along line B′-B ′, there are two concave portions 16 due to the groove-shaped concave portions 13 or two convex portions 18 due to the line-shaped convex portions 15.
- the joint portion 5 b is a rectangular plate portion that is perpendicular to the flat plate portion 5 a and is thinner than the flat plate portion 5 a, and has a flat surface 20 that is joined to the tube 4. .
- the flat surface 20 has a planar shape parallel to the surface 21 of the tube 4.
- the flat surface 20 is inevitably compared with the concept of a completely flat surface having no undulations and the groove-shaped recess 13 at the time of groove forming for attaching the groove-shaped recess 13 to the flat plate portion 5a. It includes both the concept of a substantially flat surface with a negligible extremely shallow groove (unprocessed residue).
- the corrugated fin 5 and the tube 4 are joined by brazing using a brazing material 22 interposed between the flat surface 20 of the joint portion 5 b and the surface 21 of the tube 4. Since the flat surface 20 of the joint portion 5b has a planar shape, the joint area and the thermal contact area with the tube 4 can be made larger than when the flat surface 20 has a curved surface shape or a square surface shape. Since the joining area of the flat surface 20 of the joining part 5b and the surface 21 of the tube 4 can be taken large, the corrugated fin 5 and the tube 4 can be joined more firmly.
- the thermal contact area between the flat surface 20 of the joint 5b and the surface 21 of the tube 4 can be increased, the heat of the engine coolant flowing in the tube 4 can be efficiently conducted from the tube 4 to the corrugated fins 5.
- the heat dissipation effect by the corrugated fins 5 can be further enhanced.
- the manufacturing method of the corrugated fin 5 includes a groove forming step and a corrugated forming step.
- the groove forming step is a step of forming a plurality of groove-like recesses 13 on a plate surface of the corrugated fin material fed from the thin plate coil 30 through the strip-like thin plate 30a between the pair of first rolls 31, 31 ′.
- a plurality of uneven portions (not shown) corresponding to the plurality of groove-like recesses 13 to be attached to the strip-like thin plate 30 a are formed.
- a plurality of grooves are formed on the plate surface of the strip-shaped thin plate 30a by sandwiching the strip-shaped thin plate 30a between the concave portion of the first roll 31 on one side and the convex portion of the first roll 31 'on the other side.
- a concave portion 13 is provided.
- the same some groove-shaped recessed part 13 can also be attached
- a pair of second rolls 32 and 32 are disposed on the downstream side of the first rolls 31 and 31 ′ with the strip-shaped thin plate 30 a fed out between the pair of first rolls 31 and 31 ′.
- the flat plate portions 5a and the joint portions 5b are alternately bent and formed in a corrugated shape.
- a plurality of teeth (not shown) for bending and forming the strip-shaped thin plate 30a having a plurality of groove-like recesses 13 on the plate surface into a corrugated shape on the outer peripheral portions of the pair of second rolls 32 and 32 ' Are formed so as to be able to mesh with each other.
- the belt-like thin plate 30a is sandwiched between the pair of second rolls 32 and 32' and sent out downstream.
- the belt-like thin plate 30a is corrugated by sandwiching the belt-like thin plate 30a between the teeth of the second roll 32 on one side and the teeth on the second roll 32 'on the other side. It is designed to be bent.
- a plurality of groove-like recesses 13 and a plurality of groove-like recesses 13 are formed on the strip-shaped thin plate 30a before being subjected to corrugation molding.
- the shape of the flat surface 20 is a planar shape as shown in FIG. 5D, but is not limited to this, and FIG. As shown, a curved shape is also included.
- the corrugated fins 5 obtained through the corrugating process are sandwiched between the tubes 4 adjacent to each other and joined to the tubes 4 by brazing.
- the flat plate portion 5a is provided with the concave portions 16 formed by the groove-shaped concave portions 13 or the convex portions 17 and 18 formed by the line-shaped convex portions 14 and 15 at an arbitrary cut surface.
- the section modulus of the cut surface along the direction (FD) in which the pair of end sides 12 and 12 'are arranged can be increased, and the direction in which the pair of side sides 11 and 11' are arranged (FW).
- the section modulus of the cut surface along the line can be increased.
- the rigidity of the flat plate portion 5a can be enhanced with respect to both the bending action that brings the pair of side edges 11 and 11 'closer and the bending action that brings the pair of end edges 12 and 12' closer.
- the concave portion 16 by the groove-shaped concave portion 13 or the convex portions 17, 18 by the streak convex portions 14, 15 as provided in the flat plate portion 5a is not provided in the joint portion 5b.
- the radiator core 6 is assembled by alternately stacking the tubes 4 and the corrugated fins 5. Since the error in the shape and dimension of the corrugated fins 5 is kept small, the radiator core 6 is not warped, and the product accuracy can be increased. In addition, since the correction work of the shape dimension error of the corrugated fin 5 and the advanced skill for offsetting the errors are not required, the manufacture thereof is also facilitated.
- 6A to 6F show plan views of a flat plate portion 5a according to a modification of the corrugated fin 5 of the first embodiment.
- the flat plate portion 5a is provided with at least one concave portion 16 by the groove-shaped concave portion 13 at an arbitrary cut surface.
- the configuration can be changed as appropriate without departing from the spirit of the configuration. For example, as shown in FIG.
- a groove-like recess 13 ⁇ / b> A having a groove width larger than the groove-like recess 13 can be employed instead of the groove-like recess 13.
- the pitch of the arrangement of the groove-like recesses 13 can be changed to a pitch Pc smaller than Pb.
- the pitch of the groove-shaped recesses 13 can be set to two or more different pitches Pd and Pe.
- the groove-like recesses 13 and 13A having different groove widths can be alternately arranged. Further, as shown in FIG.
- the one corresponding to the groove-shaped recess 13 may be configured by alternately arranging a plurality of groove-shaped recesses 13B having a shorter length than the groove-shaped recess 13. it can.
- the groove-shaped recessed part 13 is a direction which goes to the side edge 11 'of the other side from the side edge 11 of one side, as it goes to the direction which goes to the edge 12' of the other side from the edge 12 of the one side of the flat plate part 5a. Is a concave portion extending in a straight line obliquely, but a concave portion extending in the opposite direction, that is, as shown in FIG.
- a groove-like recess 13 ⁇ / b> C that extends linearly obliquely in a direction from the other side 11 ′ to the one side 11 as it proceeds in the direction toward 12 ′ can be employed.
- the surface of the flat plate portion 5a has a predetermined pitch in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged.
- a plurality of groove-like recesses 40 are provided at equal intervals in Pf.
- the groove-shaped recess 40 is composed of a first groove-shaped recess 40a and a second groove-shaped recess 40b, and the first groove-shaped recess 40 in a plan view when the other side edge 12 'is turned up.
- the first groove-shaped recess 40a is formed from the end 12 on one side to the end 12 'on the other side, starting from the central portion in the direction (FW) in which the pair of sides 11 and 11' of the flat plate portion 5a is arranged.
- the concave portion extends linearly obliquely in the direction from the side 11 on one side to the side 11 'on the other side as it goes in the direction toward it.
- the second groove-shaped recess 40b is formed from the end 12 on one side to the end 12 'on the other side, starting from the central portion in the direction (FW) in which the pair of sides 11 and 11' of the flat plate portion 5a is arranged.
- the concave portion extends linearly and obliquely in the direction from the other side 11 ′ to the one side 11 as it advances in the direction toward the other side.
- the flat plate portion 5a has a plurality of concave portions 41 formed by a plurality of groove-shaped concave portions 40 at an arbitrary cut surface in a direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Will have.
- the flat plate portion 5a has a plurality of convex portions 44 and 45 formed by a plurality of streaky convex portions 42 and 43 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. It will be.
- FIGS. 7B, 7C, and 7D Description of uneven portions of an arbitrary cut surface of a flat plate portion>
- the flat plate portion 5a has a plurality of concave portions 41 formed by a plurality of groove-shaped concave portions 40 at an arbitrary cut surface in a direction (FD) in which the pair of end sides 12, 12 ′ are arranged.
- FD a direction
- the flat plate portion 5a has a plurality of convex portions 44 and 45 formed
- the flat plate portion 5a is a concave portion formed by the groove-shaped concave portion 40 at an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged. 41.
- the flat plate portion 5a has the convex portions 44 and 45 formed by the streak-like convex portions 42 and 43 on an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 'are arranged.
- FIG. 7 (c) in the cross section along the line DD of the flat plate portion 5a, there is one concave portion 41 due to the groove-like concave portion 40 or one convex portion 45 due to the streaky convex portion 43.
- FIG. 7D in the cross section taken along the line D′-D ′, there are two concave portions 41 due to the groove-shaped concave portions 40 or two convex portions 45 due to the line-shaped convex portions 43.
- ⁇ Third embodiment Explanation of groove-shaped recess in flat plate portion>
- a predetermined pitch in the direction (FD) in which the pair of end sides 12 and 12 'are arranged on the surface of the flat plate portion 5a.
- a plurality of groove-like recesses 46 are provided at equal intervals in Pg.
- the groove-like recess 46 is a recess that is bent in an arc shape so as to bulge toward the end 12 on the one side between the side 11 on one side and the side 11 'on the other side.
- the flat plate portion 5a has a plurality of recesses 47 formed by a plurality of groove-like recesses 46 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Will have.
- the flat plate portion 5a has a plurality of convex portions 50 and 51 by a plurality of streak-like convex portions 48 and 49 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. It will be. Further, as shown in FIGS.
- FW a direction in which the flat plate portion 5a and the pair of side edges 11 and 11 ′ are arranged.
- the convex portions 50 and 51 by the streaky convex portions 48 and 49 are provided.
- FIG. 8C in the cross section taken along the line FF of the flat plate portion 5a, there is one concave portion 47 due to the groove-shaped concave portion 46 or one convex portion 51 due to the line-like convex portion 49.
- FIG. 4D in the cross section taken along line F′-F ′, there are two concave portions 47 due to the groove-shaped concave portions 46 or two convex portions 51 due to the line-shaped convex portions 49.
- FIG. 9A Explanation of groove-shaped recess in flat plate portion>
- a predetermined pitch in the direction (FD) in which the pair of end sides 12 and 12 'are arranged on the surface of the flat plate portion 5a.
- a plurality of groove-like recesses 52 are provided at equal intervals in Ph.
- the groove-like recess 52 is constituted by a first groove-like recess 52a, a second groove-like recess 52b, a third groove-like recess 52c, and a fourth groove-like recess 52d, and an end 12 ′ on the other side of the flat plate portion 5a.
- the first groove-like recess 52a, the second groove-like recess 52b, the third groove-like recess 52c, and the fourth groove-like recess 52d are recesses that are continuous in a W-shape.
- the first groove-shaped recess 52a is formed on the one side with the intermediate portion between the central portion in the direction (FW) in which the pair of side edges 11, 11 'of the flat plate portion 5a are arranged and the side edge 11' on the other side as a base point.
- the concave portion extends linearly and obliquely in the direction from the side 11 on one side toward the side 11 'on the other side as it proceeds in the direction from the side 12 to the side 12' on the other side.
- the second groove-shaped recess 52b is formed on one side with the intermediate portion between the central portion in the direction (FW) in which the pair of side edges 11, 11 'of the flat plate portion 5a are arranged and the other side edge 11' as a base point.
- the concave portion extends linearly and obliquely in the direction from the other side 11 ′ to the one side 11 as it proceeds in the direction from the side 12 to the other side 12 ′.
- the third groove-like recess 52c is an end on one side, with an intermediate portion between the central portion in the direction (FW) in which the pair of side edges 11, 11 'of the flat plate portion 5a are arranged and the side edge 11 on one side as a base point.
- the concave portion extends linearly obliquely in the direction from the side 11 on one side toward the side 11 'on the other side as it proceeds in the direction from the side 12 toward the other side 12'.
- the fourth groove-like recess 52d has an end on one side, with an intermediate portion between the central portion in the direction (FW) in which the pair of side edges 11 and 11 'of the flat plate portion 5a are disposed and the side edge 11 on one side as a base point.
- the concave portion extends linearly obliquely in the direction from the side 11 ′ on the other side toward the side 11 on the one side as it proceeds in the direction from the side 12 toward the other side 12 ′.
- the flat plate portion 5a has a plurality of recesses 53 formed by a plurality of groove-like recesses 52 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Will have.
- the flat plate portion 5a has a plurality of convex portions 56 and 57 formed by a plurality of streak-like convex portions 54 and 55 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. It will be.
- the flat plate portion 5a has two concave portions 53 formed by the groove-shaped concave portions 52 on an arbitrary cut surface in the direction (FW) in which the pair of side edges 11, 11 ′ are arranged. You will have more than one.
- the flat plate portion 5a has two or more convex portions 56, 57 formed by the streak-like convex portions 54, 55 on an arbitrary cut surface in the direction (FW) in which the pair of side edges 11, 11 ′ are arranged. become.
- ⁇ Fifth Embodiment Explanation of groove-shaped recess in flat plate portion>
- a predetermined pitch is provided on the surface of the flat plate portion 5a in the direction (FW) in which the pair of side edges 11, 11 ′ are arranged.
- a plurality of groove-like recesses 58 are provided at equal intervals in Pi.
- the groove-like recess 58 is constituted by a first groove-like recess 58a, a second groove-like recess 58b, a third groove-like recess 58c, and a fourth groove-like recess 58d, and the side 11 'on the other side of the flat plate portion 5a is formed.
- the first groove-like recess 58a, the second groove-like recess 58b, the third groove-like recess 58c, and the fourth groove-like recess 58d are recesses having a shape that continues in an M shape. .
- the first groove-like recess 58a is an end on the other side with the intermediate portion between the central portion in the direction (FD) in which the pair of end sides 12, 12 'of the flat plate portion 5a are arranged and the one end side 12 as a base point.
- the concave portion extends linearly obliquely in the direction from the side 11 'on the other side toward the side 11 on the one side as it proceeds in the direction from the side 12' to the one side 12 on the one side.
- the second groove-shaped recess 58b has one end on the basis of an intermediate portion between the center portion in the direction (FD) in which the pair of end sides 12 and 12 'of the flat plate portion 5a are arranged and the one end side 12.
- the concave portion extends linearly obliquely in the direction from the side 11 ′ on the other side toward the side 11 on the one side as it proceeds in the direction from the side 12 toward the other side 12 ′.
- the third groove-like recess 58c is based on an intermediate portion between the center portion in the direction (FD) in which the pair of end sides 12, 12 'of the flat plate portion 5a are arranged and the other end side 12', and The concave portion extends linearly obliquely in the direction from the other side 11 ′ to the one side 11 as it proceeds in the direction from the end 12 ′ to the one side 12.
- the fourth groove-like concave portion 58d is formed on the one side with the intermediate portion between the center portion in the direction (FD) in which the pair of side edges 12, 12 'of the flat plate portion 5a are arranged and the other side edge 12' as a base point.
- the concave portion extends linearly and obliquely in the direction from the other side 11 ′ to the one side 11 as it proceeds in the direction from the side 12 to the other side 12 ′.
- the flat plate portion 5a has two or more concave portions 59 formed by the groove-shaped concave portions 58 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. Will have.
- the flat plate portion 5a has two or more convex portions 62 and 63 formed by the streak-shaped convex portions 60 and 61 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. become. Further, as shown in FIG.
- the flat plate portion 5a has a plurality of groove-like recesses 58 on a given cut surface in the direction (FW) in which the pair of side edges 11, 11 ′ are arranged.
- a recess 59 is provided.
- the flat plate portion 5a has a plurality of convex portions 62 and 63 formed by a plurality of streak-like convex portions 60 and 61 on an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged. It will be.
- ⁇ 6th Embodiment Description of the groove-shaped recessed part of a flat plate part> As shown in FIG. 11A, in the corrugated fin 5E of the sixth embodiment, a predetermined pitch in the direction (FD) in which the pair of end sides 12 and 12 'are arranged on the surface of the flat plate portion 5a. A plurality of first groove-like recesses 64 and second groove-like recesses 65 are provided at equal intervals in Pj. The first groove-like recess 64 is inclined in the direction from the one side 11 to the other side 11 ′ as it proceeds in the direction from the one side 12 to the other side 12 ′. It is a recessed part extended linearly.
- the second groove-shaped recess 65 advances in the direction from the one side edge 12 toward the other side edge 12 ′, the second groove-shaped recess 65 is inclined in the direction from the other side edge 11 ′ toward the one side edge 11. It is a recessed part extended linearly.
- the plurality of first groove-like recesses 64 and the plurality of second groove-like recesses 65 intersect with each other and are arranged in a mesh shape as a whole.
- the flat plate portion 5a has a plurality of groove-like recesses 64, 65 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged.
- a recess 66 is provided.
- the flat plate portion 5a has a plurality of convex portions 69 and 70 formed by a plurality of streak-shaped convex portions 67 and 68 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. It will be.
- the flat plate portion 5a is formed by a plurality of groove-like recesses 64 and 65 at an arbitrary cut surface in the direction (FW) in which the pair of side sides 11 and 11 ′ are arranged.
- a plurality of recesses 66 are provided.
- the flat plate portion 5a has a plurality of convex portions 69 and 70 formed by a plurality of streak-shaped convex portions 67 and 68 on an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 'are arranged. It will be.
- ⁇ Seventh embodiment Explanation of groove-shaped recess in flat plate portion>
- a first groove-like recess 71 and a second groove-like recess 72 are provided on the surface of the flat plate portion 5a.
- the first groove-like recess 71 has a corner of intersection between the side 11 on one side and the end 12 on one side, and an angle of intersection between the side 11 'on the other side and the end 12' on the other side. It is a recessed part extended linearly between parts.
- the second groove-like recess 72 has a corner portion where the other side edge 11 ′ and the one side edge 12 intersect, and a corner angle between the one side edge 11 and the other side edge 12 ′. It is a recessed part extended linearly between parts.
- the first groove-like recess 71 and the second groove-like recess 72 intersect with each other and are arranged in an X shape.
- the flat plate portion 5a is a recess formed by the groove-like recesses 71 and 72 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 ′ are arranged. 73, 74.
- the flat plate portion 5a has the convex portions 77 and 78 formed by the streak-shaped convex portions 75 and 76 on an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged.
- the flat plate portion 5a is a recess formed by the groove-like recesses 71 and 72 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 ′ are arranged. 73, 74.
- the flat plate portion 5a has the convex portions 77 and 78 formed by the streak-shaped convex portions 75 and
- the flat plate portion 5a has groove-like recesses 71 and 72 at an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged. Will have a recess.
- the flat plate portion has the convex portions 77 and 78 formed by the streak-shaped convex portions 75 and 76 at an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged.
- FIG. 12D in the NN line cross section of the flat plate portion 5a, one recess 73 (74) by the groove-like recess 71 (72) or 1 by the stripe-like protrusion 75 (76).
- FIG. 13A Explanation of groove-shaped recess in flat plate portion>
- a direction (FW) in which the pair of side edges 11, 11 ′ are arranged on the surface of the flat plate portion 5a and a pair of ends.
- a plurality of hemispherical concave portions 79 are provided so as to be alternately arranged in each of the directions (FD) in which the sides 12 and 12 ′ are arranged.
- hemispherical recesses 79 adjacent to each other in the direction (FD) in which the pair of end sides 12 and 12 ′ are disposed they are adjacent to each other when viewed in the direction (FW) in which the pair of side sides 11 and 11 ′ are disposed.
- the arrangement pitch of the hemispherical recesses 79, the size of the diameter, and the like are determined so that parts of the hemispherical recesses 79 overlap.
- hemispherical recesses 79 adjacent to each other in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged they are adjacent to each other when viewed in the direction (FD) in which the pair of side edges 12 and 12 ′ are arranged.
- the arrangement pitch of the hemispherical recesses 79, the size of the diameter, and the like are determined so that the hemispherical recesses 79 partially overlap.
- the flat plate portion 5a has a plurality of recesses 80 formed by a plurality of hemispherical recesses 79 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12 and 12 'are arranged. Will have.
- the flat plate portion 5a has a plurality of convex portions 82 formed by a plurality of hemispherical convex portions 81 at an arbitrary cut surface in the direction (FD) in which the pair of end sides 12, 12 ′ are arranged. Further, as shown in FIG.
- the flat plate portion 5 a has a plurality of hemispherical recesses 79 formed in a plurality of hemispherical recesses 79 in an arbitrary cut surface in the direction (FW) in which the pair of side edges 11, 11 ′ are arranged.
- a recess 80 is provided.
- the flat plate portion 5a has a plurality of convex portions 82 formed by a plurality of hemispherical convex portions 81 at an arbitrary cut surface in the direction (FW) in which the pair of side edges 11 and 11 ′ are arranged.
- the direction (FW) in which the pair of side edges 11 and 11 'are disposed and the pair of end edges 12 and 12' are disposed In the two directions, ie, the direction (FD), the concave portions 41, 47, 53, 59, 66, 73 by at least one groove-shaped concave portion 40, 46, 52, 58, 64, 65, 71, 72 at an arbitrary cut surface.
- any of the corrugated fins 5A to 5G of the second to eighth embodiments can provide the same effects as those of the corrugated fin 5 of the first embodiment.
- the radiator including the corrugated fins 5A to 5G has the same product accuracy as the radiator 1 of the first embodiment, and can be easily manufactured.
- corrugated fin of the present invention and the heat exchanger provided with the corrugated fin have been described based on a plurality of embodiments and modifications.
- the present invention is not limited to the configurations described in the above embodiments and modifications.
- the configurations can be changed as appropriate without departing from the spirit of the invention, for example, by appropriately combining the configurations described in the embodiments and modifications.
- the corrugated fin of the present invention and the heat exchanger provided with the corrugated fin can surely prevent the occurrence of bending at an unexpected part during production, thereby improving product accuracy and facilitating production. Since it has a characteristic that it can be used, it can be suitably used for applications such as radiators, oil coolers, and aftercoolers.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
上側タンクと下側タンクとは、所定の間隔を存して配置される複数のチューブによって接続されている。これにより、エンジンから送り出されたエンジン冷却水が、一旦、上側タンクに貯留され、複数のチューブを通って下側タンクに溜められた後、エンジンに還流される。
フィンは、互いに隣接するチューブの間に配され、ろう付け等の接合手段によってチューブに接合されている。 The radiator mainly includes an upper tank, a lower tank, a plurality of tubes, and fins.
The upper tank and the lower tank are connected by a plurality of tubes arranged at a predetermined interval. Thereby, the engine cooling water sent out from the engine is temporarily stored in the upper tank, is stored in the lower tank through a plurality of tubes, and is then returned to the engine.
The fins are arranged between adjacent tubes and are joined to the tubes by joining means such as brazing.
溝成形工程は、薄板コイルから繰り出される帯状薄板を溝成形用の一対のロールの間を通すことにより、あるいはプレス機械を用いたプレス加工により、その板面に複数の溝を形成する工程である。
コルゲート成形工程は、溝成形加工が行われた後の帯状薄板をコルゲート成形用の一対のロールの間を通すことにより、平板部と接合部とが交互にコルゲート状に連続するよう屈曲形成する工程である。 A corrugated fin is manufactured through a groove forming process and a corrugated forming process, for example.
The groove forming step is a step of forming a plurality of grooves on the plate surface by passing a strip-shaped thin plate drawn out from a thin plate coil between a pair of grooves for forming a groove, or by pressing using a press machine. .
The corrugating process is a process in which the strip-shaped thin plate after the groove forming process is passed between a pair of corrug forming rolls so that the flat plate portion and the joining portion are alternately bent in a corrugated shape. It is.
このため、コルゲートフィンとチューブとを交互に積層してラジエータコアを組み立てる際、コルゲートフィンの形状寸法の誤差が累積してラジエータコアに反りが生じる恐れがあり、製品精度の向上を図ることが難しいという問題点がある。また、コルゲートフィンの形状寸法の誤差を修正しようとすれば、余分な手間や時間がかかり、コルゲートフィンの形状寸法の誤差同士を相殺し合うように組み立てようとすれば、高度な技能が必要となり、製作が困難になるという問題点がある。 Therefore, the conventional corrugated fin has a problem that an unexpected part may be bent at the time of manufacture, more specifically, in the corrugating process, and the error of the shape dimension becomes large.
For this reason, when assembling a radiator core by alternately laminating corrugated fins and tubes, errors in the shape dimensions of the corrugated fins may cause warpage of the radiator core, making it difficult to improve product accuracy. There is a problem. Also, if you try to correct the corrugated fin shape error, it will take extra effort and time, and if you try to assemble the corrugated fin shape error so as to offset each other, advanced skills are required. There is a problem that production becomes difficult.
互いに対向する一対の側辺および互いに対向する一対の端辺をそれぞれ有する平板部と、この平板部の側辺に連設される接合部とが交互にコルゲート状に屈曲形成されてなる熱交換器用のコルゲートフィンにおいて、
前記接合部は、熱交換媒体が流通されるチューブに接合される平坦面を有し、
前記平板部は、前記一対の側辺が配される方向と前記一対の端辺が配される方向との2方向において、任意の切断面で少なくとも1つの凹部または凸部を有することを特徴とするものである。 In order to achieve the above object, the corrugated fin according to the first aspect of the present invention comprises:
For heat exchangers in which flat plate portions each having a pair of opposite sides and a pair of opposite sides and joint portions provided continuously on the sides of the flat plate portions are alternately bent in a corrugated shape. In the corrugated fin,
The joining portion has a flat surface joined to a tube through which a heat exchange medium is circulated,
The flat plate portion has at least one concave portion or convex portion at an arbitrary cut surface in two directions of a direction in which the pair of side sides are arranged and a direction in which the pair of end sides are arranged. To do.
第1発明~第4発明のいずれかの発明に係るコルゲートフィンを備えることを特徴とするものである。 Next, the heat exchanger according to the fifth invention is
A corrugated fin according to any one of the first to fourth inventions is provided.
また、接合部には、平板部に設けられるような凹部または凸部が設けられない。これにより、平板部と接合部との間において剛性の差を大きく持たせることができ、平板部と接合部との境界部分で容易かつ確実に折り曲げることができる。
第1発明のコルゲートフィンによれば、コルゲートフィンの製作時に予期しない箇所に曲がりが発生するのを確実に防止することができ、コルゲートフィンの形状寸法の誤差を小さく抑えることができる。 In the corrugated fin of the first invention, at least one concave portion or convex portion is formed on the flat plate portion at any cut surface in two directions, ie, the direction in which the pair of side sides are arranged and the direction in which the pair of end sides are arranged. Provided. Thereby, the section modulus of the cut surface along the direction in which the pair of end sides is arranged can be increased, and the section coefficient of the cut surface along the direction in which the pair of side sides is arranged can be increased. For this reason, the rigidity of the flat plate portion can be enhanced with respect to both the bending action for bringing the pair of side sides closer and the bending action for bringing the pair of end sides closer.
Moreover, the recessed part or convex part which is provided in a flat plate part is not provided in a junction part. Accordingly, a large difference in rigidity can be provided between the flat plate portion and the joint portion, and it can be easily and reliably bent at the boundary portion between the flat plate portion and the joint portion.
According to the corrugated fin of the first invention, it is possible to reliably prevent an unexpected portion from being bent at the time of manufacturing the corrugated fin, and to suppress an error in the shape dimension of the corrugated fin.
図1には、本発明の第1の実施形態に係るコルゲートフィンを備えたラジエータの全体斜視図が示されている。 [First Embodiment]
FIG. 1 is an overall perspective view of a radiator including a corrugated fin according to the first embodiment of the present invention.
図1に示されるラジエータ1は、当該ラジエータ1と図示されないエンジンとの間で循環されるエンジン冷却水(熱交換媒体)がエンジンから得た熱を放散させる装置である。
このラジエータ1は、主として、上側タンク2と、下側タンク3と、チューブ4と、コルゲートフィン5とを備えて構成されている。
上側タンク2と下側タンク3とは、複数のチューブ4によって接続されている。これにより、エンジンから送り出されたエンジン冷却水を、一旦、上側タンク2に貯留し、複数のチューブ4を通して下側タンク3に溜めた後、エンジンに還流することができる。
なお、チューブ4とコルゲートフィン5とを交互に積層してラジエータコア6が組み立てられる。 <Description of the schematic structure of the radiator>
A
The
The
The
図2に示されるように、チューブ4は、エンジン冷却水の流通路4aを内部に有する扁平管部材で構成されている。
チューブ4は、ラジエータ1の幅方向RWに所定のピッチPaで、ラジエータ1の奥行方向RDに所定の隙間Sを存して多数配列されている。 <Description of tube>
As shown in FIG. 2, the
A large number of
コルゲートフィン5は、ラジエータ1の幅方向(RW)に互いに隣接するチューブ4の間に配されている。このコルゲートフィン5は、平板部5aと接合部5bとが交互にコルゲート状に屈曲形成されてなるものである。 <Overview of corrugated fin>
The
平板部5aは、ラジエータ1の幅方向(RW)において互いに対向する一対の側辺11,11´と、ラジエータ1の奥行方向(RD)において互いに対向する一対の端辺12,12´とを有する長方形状の板部である。 <Overview of flat plate>
The
図3(a)に示されるように、平板部5aの表面には、一対の端辺12,12´が配される方向(FD)に所定のピッチPbで等間隔に複数の溝状凹部13が設けられている。
溝状凹部13は、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部である。
互いに隣接する溝状凹部13において、一対の側辺11,11´が配される方向(FW)で見たとき、互いに隣接する溝状凹部13の一部が重なり合うように、溝状凹部13の配置のピッチPbや傾斜角度、溝状凹部13の長さや幅の大きさなどが定められている。
なお、平板部5aの表面に複数の溝状凹部13を設けることにより、互いに隣接する溝状凹部13の間の部位は相対的に筋状凸部14となる。また、平板部5aの裏面には、平板部5aの表面に溝状凹部13を設けることで結果的にその溝状凹部13に対応する筋状凸部15(図3(b)(c)参照)が形成されることになる。 <Description of groove-shaped recess in flat plate portion>
As shown in FIG. 3A, on the surface of the
The groove-
In the groove-
In addition, by providing the several groove-shaped recessed
図3(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の溝状凹部13による複数の凹部16を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の筋状凸部14,15による複数の凸部17,18を有することになる。
また、図3(c)(d)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、溝状凹部13による凹部16を有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、筋状凸部14,15による凸部17,18を有することになる。なお、図3(c)に示されるように、平板部5aのB-B線断面においては溝状凹部13による1つの凹部16または筋状凸部15による1つの凸部18が存在するが、同図(d)に示されるように、B´-B´線断面においては溝状凹部13による2つの凹部16または筋状凸部15による2つの凸部18が存在する。 <Explanation of uneven portion of arbitrary cut surface of flat plate portion>
As shown in FIG. 3B, the
Moreover, as shown in FIGS. 3C and 3D, the
図4に示されるように、接合部5bは、平板部5aと直角を成し、平板部5aよりも細い長方形状の板部であり、チューブ4に接合される平坦面20を有している。この平坦面20は、チューブ4の表面21と平行を成す平面形状とされている。
ここで、平坦面20とは、起伏が全く無くて完全に平坦な面という概念と、平板部5aに溝状凹部13を付すための溝成形加工時に不可避的にその溝状凹部13と比べて無視できる程度の極めて浅い溝(加工残り)がある略平坦な面という概念との両方の概念を包含するものである。 <Overview of the joint>
As shown in FIG. 4, the
Here, the
コルゲートフィン5とチューブ4とは、接合部5bの平坦面20とチューブ4の表面21との間に介在されるろう材22を用いたろう付けによって接合されている。
接合部5bの平坦面20は平面形状であるので、平坦面20が曲面形状や角面形状の場合よりも、チューブ4に対する接合面積や熱的接触面積を大きくとることができる。
接合部5bの平坦面20とチューブ4の表面21との接合面積を大きくとることができるので、コルゲートフィン5とチューブ4とをより強固に接合することができる。
接合部5bの平坦面20とチューブ4の表面21との熱的接触面積を大きくとることができるので、チューブ4内を流れるエンジン冷却水の熱をチューブ4からコルゲートフィン5へ効率良く伝導させることができ、コルゲートフィン5による放熱効果をより高めることができる。 <Description of bonding between corrugated fin and tube>
The
Since the
Since the joining area of the
Since the thermal contact area between the
次に、コルゲートフィン5の製造方法について図5(a)を参照しつつ以下に説明する。
コルゲートフィン5の製造方法は、溝成形工程と、コルゲート成形工程とを含んでいる。 <Description of manufacturing method of corrugated fin>
Next, a method for manufacturing the
The manufacturing method of the
溝成形工程は、薄板コイル30から繰り出されるコルゲートフィン材料の帯状薄板30aを一対の第1のロール31,31´の間を通してその板面に複数の溝状凹部13を形成する工程である。
一対の第1のロール31,31´におけるそれぞれの外周面には、帯状薄板30aに付すべき複数の溝状凹部13に対応する図示されない複数の凹凸部が形成されている。一対の第1のロール31,31´が図中矢印方向に回転駆動されると、一対の第1のロール31,31´の間に帯状薄板30aが挟まれながら下流側に送り出される。このとき、一側の第1のロール31における凹部と、他側の第1のロール31´における凸部との間に帯状薄板30aが挟まれることにより、帯状薄板30aの板面に複数の溝状凹部13が付されるようになっている。
なお、プレス機械を用いたプレス加工により、帯状薄板30aの板面に同様の複数の溝状凹部13を付すこともできる。 <Description of groove forming process>
The groove forming step is a step of forming a plurality of groove-
On each outer peripheral surface of the pair of
In addition, the same some groove-shaped recessed
コルゲート成形工程は、一対の第1のロール31,31´の間から繰り出される帯状薄板30aを、それら第1のロール31,31´の下流側に配される一対の第2のロール32,32´の間を通すことにより、平板部5aと接合部5bとが交互にコルゲート状に連続するよう屈曲形成する工程である。
一対の第2のロール32,32´におけるそれぞれの外周部には、板面に複数の溝状凹部13が付された後の帯状薄板30aをコルゲート状に屈曲成形するための図示されない複数の歯が互いに噛合可能に形成されている。一対の第2のロール32,32´が図中矢印方向に回転駆動されると、一対の第2のロール32,32´の間に帯状薄板30aが挟まれながら下流側に送り出される。このとき、一側の第2のロール32における歯と歯の間と、他側の第2のロール32´における歯との間に帯状薄板30aが挟まれることにより、帯状薄板30aがコルゲート状に屈曲形成されるようになっている。
なお、コルゲート成形が施される前の帯状薄板30aには、図5(b)に示されるように、複数の溝状凹部13と、これら溝状凹部13が付されることによって形成される複数の筋状凸部14のいずれの凹凸部もない部分(図中記号T矢印で示される部分)がある。そして、この部分が平坦面20を有する接合部5bとなるようにコルゲート成形が行われる(図5(c)参照)。
ここで、平坦面20の形状としては、本実施形態では、図5(d)に示されるように、平面形状とされているが、これに限定されるものではなく、同図(e)に示されるように、曲面形状のものも含まれる。平坦面20を曲面形状に形成することにより、折り曲げ部分の応力集中を回避することができる。
こうして、コルゲート成形工程を経て得られたコルゲートフィン5は、互いに隣接するチューブ4の間に挟まれ、ろう付けによってそれらチューブ4に接合される。 <Description of corrugated molding process>
In the corrugate forming step, a pair of
A plurality of teeth (not shown) for bending and forming the strip-shaped
As shown in FIG. 5B, a plurality of groove-
Here, in the present embodiment, the shape of the
Thus, the
第1の実施形態のコルゲートフィン5においては、図3(b)(c)に示されるように、一対の側辺11,11´が配される方向(FW)と一対の端辺12,12´が配される方向(FD)との2方向において、任意の切断面で溝状凹部13による凹部16または筋状凸部14,15による凸部17,18が平板部5aに設けられる。これにより、一対の端辺12,12´が配される方向(FD)に沿う切断面の断面係数を大きくすることができるとともに、一対の側辺11,11´が配される方向(FW)に沿う切断面の断面係数を大きくすることができる。このため、一対の側辺11,11´を近づけるような曲げ作用と、一対の端辺12,12´を近づけるような曲げ作用との両方に対して平板部5aの剛性を高めることができる。
また、接合部5bには、平板部5aに設けられるような溝状凹部13による凹部16または筋状凸部14,15による凸部17,18が設けられない。これにより、平板部5aと接合部5bとの間において剛性の差を大きく持たせることができ、平板部5aと接合部5bとの境界部分で容易かつ確実に折り曲げることができる。
したがって、コルゲートフィン5の製作時に、より具体的にはコルゲート成形工程時に、予期しない箇所に曲がりが発生するのを確実に防止することができ、コルゲートフィン5の形状寸法の誤差を小さく抑えることができる。
第1の実施形態のラジエータ1においては、チューブ4とコルゲートフィン5とを交互に積層してラジエータコア6が組み立てられる。コルゲートフィン5の形状寸法の誤差が小さく抑えられるので、ラジエータコア6に反りが生じるようなことがなく、製品精度を高めることができる。また、コルゲートフィン5の形状寸法の誤差の修正作業や誤差同士を相殺し合うような高度な技能が不要であるので、その製作も容易なものとなる。 <Description of Effects of First Embodiment>
In the
Further, the
Therefore, it is possible to reliably prevent an unexpected portion from being bent at the time of manufacturing the
In the
図6(a)~(f)には、第1の実施形態のコルゲートフィン5の変形例に係る平板部5aの平面図が示されている。
第1の実施形態のコルゲートフィン5においては、一対の側辺11,11´が配される方向(FW)と一対の端辺12,12´が配される方向(FD)との2方向において、任意の切断面で溝状凹部13による凹部16が平板部5aに少なくとも1つ設けられる。この構成の趣旨を逸脱しない範囲において適宜その構成を変更することができる。
例えば、図6(a)に示されるように、溝状凹部13に代えて、その溝状凹部13よりも溝幅が大きい溝状凹部13Aを採用することができる。
また、同図(b)に示されるように、溝状凹部13の配置のピッチをPbよりも小さいピッチPcに変更することができる。
また、同図(c)に示されるように、溝状凹部13の配置のピッチを異なる2種類以上のピッチPd,Peとすることができる。
また、同図(d)に示されるように、溝幅の大きさが異なる溝状凹部13,13Aを交互に配置することができる。
また、同図(e)に示されるように、溝状凹部13に相当するものを、その溝状凹部13よりも長さが短い複数の溝状凹部13Bを互い違いに配置して構成することができる。
また、溝状凹部13は、平板部5aの一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部であるが、これとは逆向き方向に延びる凹部、すなわち同図(f)に示されるように、平板部5aの一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる溝状凹部13Cを採用することができる。 <Description of Modification of First Embodiment>
6A to 6F show plan views of a
In the
For example, as shown in FIG. 6A, a groove-
Further, as shown in FIG. 5B, the pitch of the arrangement of the groove-
Further, as shown in FIG. 2C, the pitch of the groove-shaped
Further, as shown in FIG. 4D, the groove-
Further, as shown in FIG. 5E, the one corresponding to the groove-shaped
Moreover, the groove-shaped recessed
次に、本発明の第2の実施形態~第8の実施形態に係るそれぞれのコルゲートフィン5A~5Gについて順次に説明する。なお、以下の各実施形態において、第1の実施形態と同一または同様のものについては図に同一符号を付すに留めてその詳細な説明を省略することとし、以下においては第1の実施形態と異なる点を中心に説明することとする。 [Second Embodiment to Eighth Embodiment]
Next, the
図7(a)に示されるように、第2の実施形態のコルゲートフィン5Aにおいて、平板部5aの表面には、一対の端辺12,12´が配される方向(FD)に所定のピッチPfで等間隔に複数の溝状凹部40が設けられている。
溝状凹部40は、第1溝状凹部40aと第2溝状凹部40bとにより構成され、平板部5aの他側の端辺12´を上にしたときの平面視でそれら第1溝状凹部40aと第2溝状凹部40bとがVの字状に連続する形状の凹部である。
第1溝状凹部40aは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部である。
第2溝状凹部40bは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。 <Second Embodiment (see FIG. 7A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 7A, in the
The groove-shaped
The first groove-shaped
The second groove-shaped
図7(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の溝状凹部40による複数の凹部41を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の筋状凸部42,43による複数の凸部44,45を有することになる。
また、図7(c)(d)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、溝状凹部40による凹部41を有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、筋状凸部42,43による凸部44,45を有することになる。なお、図7(c)に示されるように、平板部5aのD-D線断面においては溝状凹部40による1つの凹部41または筋状凸部43による1つの凸部45が存在するが、同図7(d)に示されるように、D´-D´線断面においては溝状凹部40による2つの凹部41または筋状凸部43による2つの凸部45が存在する。 <Second embodiment (see FIGS. 7B, 7C, and 7D)): Description of uneven portions of an arbitrary cut surface of a flat plate portion>
As shown in FIG. 7B, the
Moreover, as shown in FIGS. 7C and 7D, the
図8(a)に示されるように、第3の実施形態のコルゲートフィン5Bにおいて、平板部5aの表面には、一対の端辺12,12´が配される方向(FD)に所定のピッチPgで等間隔に複数の溝状凹部46が設けられている。
溝状凹部46は、一側の側辺11と他側の側辺11´との間において一側の端辺12側に膨出するように円弧状に曲がった凹部である。 <Third embodiment (see FIG. 8A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 8A, in the
The groove-
図8(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の溝状凹部46による複数の凹部47を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の筋状凸部48,49による複数の凸部50,51を有することになる。
また、図8(c)(d)に示されるように、平板部5a、一対の側辺11,11´が配される方向(FW)における任意の切断面において、溝状凹部46による凹部47を有することになる。言い換えれば、平板部5a、一対の側辺11,11´が配される方向(FW)における任意の切断面において、筋状凸部48,49による凸部50,51を有することになる。なお、図8(c)に示されるように、平板部5aのF-F線断面においては溝状凹部46による1つの凹部47または筋状凸部49による1つの凸部51が存在するが、同図(d)に示されるように、F´-F´線断面においては溝状凹部46による2つの凹部47または筋状凸部49による2つの凸部51が存在する。 <Third embodiment (see FIGS. 8B, 8C, and 8D): Description of uneven portions of an arbitrary cut surface of a flat plate portion>
As shown in FIG. 8B, the
Further, as shown in FIGS. 8C and 8D, a
図9(a)に示されるように、第4の実施形態のコルゲートフィン5Cにおいて、平板部5aの表面には、一対の端辺12,12´が配される方向(FD)に所定のピッチPhで等間隔に複数の溝状凹部52が設けられている。
溝状凹部52は、第1溝状凹部52aと第2溝状凹部52bと第3溝状凹部52cと第4溝状凹部52dとにより構成され、平板部5aの他側の端辺12´を上にしたときの平面視でそれら第1溝状凹部52aと第2溝状凹部52bと第3溝状凹部52cと第4溝状凹部52dとがWの字状に連続する形状の凹部である。
第1溝状凹部52aは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分と他側の側辺11´との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部である。
第2溝状凹部52bは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分と他側の側辺11´との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。
第3溝状凹部52cは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分と一側の側辺11との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部である。
第4溝状凹部52dは、平板部5aの一対の側辺11,11´が配される方向(FW)の中央部分と一側の側辺11との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。 <Fourth Embodiment (see FIG. 9A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 9A, in the
The groove-
The first groove-shaped
The second groove-shaped
The third groove-
The fourth groove-
図9(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の溝状凹部52による複数の凹部53を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の筋状凸部54,55による複数の凸部56,57を有することになる。
また、図9(c)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、溝状凹部52による凹部53を2つ以上有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、筋状凸部54,55による凸部56,57を2つ以上有することになる。 <4th Embodiment (refer FIG.9 (b) (c)): Description of the uneven | corrugated | grooved part of the arbitrary cut surfaces of a flat plate part>
As shown in FIG. 9B, the
Further, as shown in FIG. 9C, the
図10(a)に示されるように、第5の実施形態のコルゲートフィン5Dにおいて、平板部5aの表面には、一対の側辺11,11´が配される方向(FW)に所定のピッチPiで等間隔に複数の溝状凹部58が設けられている。
溝状凹部58は、第1溝状凹部58aと第2溝状凹部58bと第3溝状凹部58cと第4溝状凹部58dとにより構成され、平板部5aの他側の側辺11´を上にしたときの平面視でそれら第1溝状凹部58aと第2溝状凹部58bと第3溝状凹部58cと第4溝状凹部58dとがMの字状に連続する形状の凹部である。
第1溝状凹部58aは、平板部5aの一対の端辺12,12´が配される方向(FD)の中央部分と一側の端辺12との中間部分を基点として、他側の端辺12´から一側の端辺12に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。
第2溝状凹部58bは、平板部5aの一対の端辺12,12´が配される方向(FD)の中央部分と一側の端辺12との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。
第3溝状凹部58cは、平板部5aの一対の端辺12,12´が配される方向(FD)の中央部分と他側の端辺12´との中間部分を基点として、他側の端辺12´から一側の端辺12に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。
第4溝状凹部58dは、平板部5aの一対の端辺12,12´が配される方向(FD)の中央部分と他側の端辺12´との中間部分を基点として、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。 <Fifth Embodiment (see FIG. 10A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 10 (a), in the
The groove-
The first groove-
The second groove-shaped
The third groove-
The fourth groove-like
図10(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、溝状凹部58による凹部59を2つ以上有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、筋状凸部60,61による凸部62,63を2つ以上有することになる。
また、図10(c)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の溝状凹部58による複数の凹部59を有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の筋状凸部60,61による複数の凸部62,63を有することになる。 <Fifth embodiment (see FIGS. 10B and 10C): Description of uneven portions of an arbitrary cut surface of a flat plate portion>
As shown in FIG. 10B, the
Further, as shown in FIG. 10C, the
図11(a)に示されるように、第6の実施形態のコルゲートフィン5Eにおいて、平板部5aの表面には、一対の端辺12,12´が配される方向(FD)に所定のピッチPjで等間隔に複数の第1の溝状凹部64および第2の溝状凹部65がそれぞれ設けられている。
第1の溝状凹部64は、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、一側の側辺11から他側の側辺11´に向かう方向に斜めに直線状に延びる凹部である。
第2の溝状凹部65は、一側の端辺12から他側の端辺12´に向かう方向に進むにつれて、他側の側辺11´から一側の側辺11に向かう方向に斜めに直線状に延びる凹部である。
複数の第1の溝状凹部64と複数の第2の溝状凹部65とは互いに交差して全体として網目状に配置されている。 <6th Embodiment (refer Fig.11 (a)): Description of the groove-shaped recessed part of a flat plate part>
As shown in FIG. 11A, in the
The first groove-
As the second groove-shaped
The plurality of first groove-
図11(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の溝状凹部64,65による複数の凹部66を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の筋状凸部67,68による複数の凸部69,70を有することになる。
また、図11(c)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の溝状凹部64,65による複数の凹部66を有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の筋状凸部67,68による複数の凸部69,70を有することになる。 <6th Embodiment (refer FIG.11 (b) (c)): Description of the uneven | corrugated | grooved part of the arbitrary cut surfaces of a flat plate part>
As shown in FIG. 11 (b), the
Further, as shown in FIG. 11C, the
図12(a)に示されるように、第7の実施形態のコルゲートフィン5Fにおいて、平板部5aの表面には、第1の溝状凹部71と第2の溝状凹部72とが設けられている。
第1の溝状凹部71は、一側の側辺11と一側の端辺12との交わりの角部と、他側の側辺11´と他側の端辺12´との交わりの角部との間において直線状に延びる凹部である。
第2の溝状凹部72は、他側の側辺11´と一側の端辺12との交わりの角部と、一側の側辺11と他側の端辺12´との交わりの角部との間において直線状に延びる凹部である。
第1の溝状凹部71と第2の溝状凹部72とは互いに交差して、Xの字状に配置されている。 <Seventh embodiment (see FIG. 12A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 12A, in the
The first groove-
The second groove-
The first groove-
図12(b)(c)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、溝状凹部71,72による凹部73,74を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、筋状凸部75,76による凸部77,78を有することになる。なお、図12(b)に示されるように、平板部5aのM-M線断面においては溝状凹部71(72)による1つの凹部73(74)または筋状凸部75(76)による1つの凸部77(78)が存在するが、同図(c)に示されるように、M´-M´線断面においては溝状凹部71(72)による2つの凹部73(74)または筋状凸部75(76)による2つの凸部77(78)が存在する。
また、図12(d)(e)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、溝状凹部71,72による凹部を有することになる。言い換えれば、平板部は、一対の側辺11,11´が配される方向(FW)における任意の切断面において、筋状凸部75,76による凸部77,78を有することになる。なお、図12(d)に示されるように、平板部5aのN-N線断面においては溝状凹部71(72)による1つの凹部73(74)または筋状凸部75(76)による1つの凸部77(78)が存在するが、同図(e)に示されるように、N´-N´線断面においては溝状凹部71(72)による2つの凹部73(74)または筋状凸部75(76)による2つの凸部77(78)が存在する。 <7th Embodiment (refer FIG.12 (b) (c) (d) (e)): Description of the uneven | corrugated | grooved part of the arbitrary cut surfaces of a flat plate part>
As shown in FIGS. 12B and 12C, the
Moreover, as shown in FIGS. 12D and 12E, the
図13(a)に示されるように、第8の実施形態のコルゲートフィン5Gにおいて、平板部5aの表面には、一対の側辺11,11´が配される方向(FW)および一対の端辺12,12´が配される方向(FD)のそれぞれにおいて互い違いの配置となるように複数の半球状凹部79が設けられている。
一対の端辺12,12´が配される方向(FD)に互いに隣接する半球状凹部79において、一対の側辺11,11´が配される方向(FW)で見たとき、互いに隣接する半球状凹部79の一部が重なり合うように、半球状凹部79の配置のピッチPkや直径の大きさなどが定められている。
一対の側辺11,11´が配される方向(FW)に互いに隣接する半球状凹部79において、一対の端辺12,12´が配される方向(FD)で見たとき、互いに隣接する半球状凹部79の一部が重なり合うように、半球状凹部79の配置のピッチPmや直径の大きさなどが定められている。 <Eighth embodiment (see FIG. 13A): Explanation of groove-shaped recess in flat plate portion>
As shown in FIG. 13 (a), in the
In
In
図13(b)に示されるように、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の半球状凹部79による複数の凹部80を有することになる。言い換えれば、平板部5aは、一対の端辺12,12´が配される方向(FD)における任意の切断面において、複数の半球状凸部81による複数の凸部82を有することになる。
また、図13(c)に示されるように、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の半球状凹部79による複数の凹部80を有することになる。言い換えれば、平板部5aは、一対の側辺11,11´が配される方向(FW)における任意の切断面において、複数の半球状凸部81による複数の凸部82を有することになる。 <Eighth embodiment (see FIGS. 13B and 13C): Description of the uneven portion of an arbitrary cut surface of the flat plate portion>
As shown in FIG. 13B, the
Further, as shown in FIG. 13C, the
第2の実施形態~第8の実施形態のいずれのコルゲートフィン5A~5Gにおいても、一対の側辺11,11´が配される方向(FW)と一対の端辺12,12´が配される方向(FD)との2方向において、任意の切断面で少なくとも1つの溝状凹部40,46,52,58,64,65,71,72による凹部41,47,53,59,66,73,74または筋状凸部42,43,48,49,54,55,60,61,67,68,75,76による凸部44,45,50,51,56,57,62,63,69,70,77,78、あるいは半球状凹部79による凹部80または半球状凸部81による凸部82が平板部5aに設けられる。これにより、一対の端辺12,12´が配される方向(FD)に沿う切断面の断面係数を大きくすることができるとともに、一対の側辺11,11´が配される方向(FW)に沿う切断面の断面係数を大きくすることができる。したがって、第2の実施形態~第8の実施形態のいずれのコルゲートフィン5A~5Gによっても、第1の実施形態のコルゲートフィン5と同様の作用効果を得ることができる。かかるコルゲートフィン5A~5Gを備えるラジエータは、第1の実施形態のラジエータ1と同様、製品精度が高められ、その製作も容易なものとなる。 <Description of Effects of Second Embodiment to Eighth Embodiment>
In any of the
4 チューブ
5,5A,5B,5C,5D,5E,5F,5G コルゲートフィン
5a 平板部
5b 接合部
11,11´ 側辺
12,12´ 端辺
13 溝状凹部(第1の実施形態)
13A 溝状凹部(第1の実施形態の変形例)
13B 溝状凹部(第1の実施形態の変形例)
15 溝状凸部(第1の実施形態)
16 凹部(第1の実施形態)
17,18 凸部(第1の実施形態)
20 平坦面
40 溝状凹部(第2の実施形態)
41 凹部(第2の実施形態)
42,43 筋状凸部(第2の実施形態)
44,45 凸部(第2の実施形態)
46 溝状凹部(第3の実施形態)
47 凹部(第3の実施形態)
49,48 筋状凸部(第3の実施形態)
50,51 凸部(第3の実施形態)
52 溝状凹部(第4の実施形態)
53 凹部(第4の実施形態)
54,55 筋状凸部(第4の実施形態)
56,57 凸部(第4の実施形態)
58 溝状凹部(第5の実施形態)
59 凹部(第5の実施形態)
60,61 筋状凸部(第5の実施形態)
62,63 凸部(第5の実施形態)
64,65 溝状凹部(第6の実施形態)
66 凹部(第6の実施形態)
67,68 筋状凸部(第6の実施形態)
69,70 凸部(第6の実施形態)
71,72 筋状凹部(第7の実施形態)
73,74 凹部(第7の実施形態)
75,76 筋状凸部(第7の実施形態)
77,78 凸部(第7の実施形態)
79 半球状凹部(第8の実施形態)
80 凹部(第8の実施形態)
81 半球状凸部(第8の実施形態)
82 凸部(第8の実施形態) 1 Radiator (heat exchanger)
4
13A Groove-shaped recess (Modification of the first embodiment)
13B Groove-shaped concave portion (modified example of the first embodiment)
15 Groove-shaped convex portion (first embodiment)
16 Concave portion (first embodiment)
17, 18 Convex portion (first embodiment)
20
41 Concave portion (second embodiment)
42, 43 Straight convex portion (second embodiment)
44, 45 convex portion (second embodiment)
46 groove-shaped recess (third embodiment)
47 Concave portion (third embodiment)
49, 48 Streaky convex portion (third embodiment)
50, 51 Convex (third embodiment)
52 groove-like recess (fourth embodiment)
53 recess (fourth embodiment)
54,55 Straight convex portion (fourth embodiment)
56, 57 Convex (fourth embodiment)
58 groove-like recess (fifth embodiment)
59 Concave portion (fifth embodiment)
60, 61 Streaky convex portion (fifth embodiment)
62, 63 convex portion (fifth embodiment)
64, 65 groove-shaped recess (sixth embodiment)
66 recess (sixth embodiment)
67, 68 Straight convex portion (sixth embodiment)
69, 70 convex portion (sixth embodiment)
71, 72 Streaky recess (seventh embodiment)
73, 74 recess (seventh embodiment)
75,76 Streaky convex portion (seventh embodiment)
77, 78 convex portion (seventh embodiment)
79 Hemispherical recess (eighth embodiment)
80 recess (eighth embodiment)
81 Hemispherical convex portion (eighth embodiment)
82 Convex (Eighth Embodiment)
Claims (5)
- 互いに対向する一対の側辺および互いに対向する一対の端辺をそれぞれ有する平板部と、この平板部の側辺に連設される接合部とが交互にコルゲート状に屈曲形成されてなる熱交換器用のコルゲートフィンにおいて、
前記接合部は、熱交換媒体が流通されるチューブに接合される平坦面を有し、
前記平板部は、前記一対の側辺が配される方向と前記一対の端辺が配される方向との2方向において、任意の切断面で少なくとも1つの凹部または凸部を有することを特徴とするコルゲートフィン。 For heat exchangers in which flat plate portions each having a pair of opposite sides and a pair of opposite sides and joint portions provided continuously on the sides of the flat plate portions are alternately bent in a corrugated shape. In the corrugated fin,
The joining portion has a flat surface joined to a tube through which a heat exchange medium is circulated,
The flat plate portion has at least one concave portion or convex portion at an arbitrary cut surface in two directions of a direction in which the pair of side sides are arranged and a direction in which the pair of end sides are arranged. Corrugated fin. - 前記接合部の平坦面は、平面形状に形成される請求項1に記載のコルゲートフィン。 The corrugated fin according to claim 1, wherein the flat surface of the joint is formed in a planar shape.
- 前記接合部の平坦面は、曲面形状に形成される請求項1に記載のコルゲートフィン。 The corrugated fin according to claim 1, wherein the flat surface of the joint is formed in a curved surface shape.
- 前記凹部または凸部が2つ以上設けられる請求項1~3のいずれかに記載のコルゲートフィン。 The corrugated fin according to any one of claims 1 to 3, wherein two or more of the concave portions or the convex portions are provided.
- 請求項1~4のいずれかに記載のコルゲートフィンを備えることを特徴とする熱交換器。 A heat exchanger comprising the corrugated fin according to any one of claims 1 to 4.
Priority Applications (6)
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US13/580,342 US20120318485A1 (en) | 2010-02-25 | 2011-02-22 | Corrugated fin and heat exchanger including the same |
CN201180010592.XA CN102770735B (en) | 2010-02-25 | 2011-02-22 | Corrugated fin and possess its heat exchanger |
SE1250928A SE537136C2 (en) | 2010-02-25 | 2011-02-22 | Corrugated flange and heat exchanger including the same |
DE112011100691T DE112011100691T5 (en) | 2010-02-25 | 2011-02-22 | Corrugated fin and heat exchanger comprising a corrugated fin |
KR1020127017021A KR101343888B1 (en) | 2010-02-25 | 2011-02-22 | Corrugated fin and heat exchanger with same |
US15/216,299 US20160327348A1 (en) | 2010-02-25 | 2016-07-21 | Corrugated fin and heat exchanger including the same |
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JP2010040282A JP5156773B2 (en) | 2010-02-25 | 2010-02-25 | Corrugated fin and heat exchanger provided with the same |
JP2010-040282 | 2010-02-25 |
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US13/580,342 A-371-Of-International US20120318485A1 (en) | 2010-02-25 | 2011-02-22 | Corrugated fin and heat exchanger including the same |
US15/216,299 Continuation US20160327348A1 (en) | 2010-02-25 | 2016-07-21 | Corrugated fin and heat exchanger including the same |
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WO2011105369A1 true WO2011105369A1 (en) | 2011-09-01 |
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US (2) | US20120318485A1 (en) |
JP (1) | JP5156773B2 (en) |
KR (1) | KR101343888B1 (en) |
CN (1) | CN102770735B (en) |
DE (1) | DE112011100691T5 (en) |
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- 2011-02-22 WO PCT/JP2011/053840 patent/WO2011105369A1/en active Application Filing
- 2011-02-22 SE SE1250928A patent/SE537136C2/en unknown
- 2011-02-22 CN CN201180010592.XA patent/CN102770735B/en active Active
- 2011-02-22 DE DE112011100691T patent/DE112011100691T5/en active Pending
- 2011-02-22 US US13/580,342 patent/US20120318485A1/en not_active Abandoned
-
2016
- 2016-07-21 US US15/216,299 patent/US20160327348A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730585U (en) * | 1980-07-28 | 1982-02-17 | ||
JP2006138503A (en) * | 2004-11-10 | 2006-06-01 | Denso Corp | Heat exchanger |
JP2007232356A (en) * | 2006-02-01 | 2007-09-13 | Calsonic Kansei Corp | Heat exchanger for vehicle |
JP2007232246A (en) * | 2006-02-28 | 2007-09-13 | Denso Corp | Heat exchanger |
JP2008286446A (en) * | 2007-05-16 | 2008-11-27 | Denso Corp | Heat transfer member and heat exchanger using the same |
Also Published As
Publication number | Publication date |
---|---|
KR101343888B1 (en) | 2013-12-20 |
SE537136C2 (en) | 2015-02-10 |
JP5156773B2 (en) | 2013-03-06 |
US20120318485A1 (en) | 2012-12-20 |
DE112011100691T5 (en) | 2013-01-17 |
US20160327348A1 (en) | 2016-11-10 |
SE1250928A1 (en) | 2012-11-12 |
KR20120088876A (en) | 2012-08-08 |
JP2011174676A (en) | 2011-09-08 |
CN102770735B (en) | 2016-01-20 |
CN102770735A (en) | 2012-11-07 |
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