SE537136C2 - Corrugated flange and heat exchanger including the same - Google Patents

Abstract

537 136 SUMMARY [Purpose] AU to provide a corrugated flange capable of reliably preventing bending at an undifferentiated position during manufacture, thereby achieving a improvement in product quality and a failure of manufacture as well as providing a heat exchanger comprising the corrugated one. [Release] A corrugated flange (5) comprising planar lamella portions (5a) each having a pair of lateral sides (11, 11 ') opposite each other and a pair of end faces (12, 12') opposite each other, and connecting portions (5b) connected to each other the lateral sides (11, 11 ') of the planar lamella portions (5a). The flat lamella parts (5a) and the connecting parts (5b) are alternately formed into a corrugated shape by bending. The connecting part (5b) has a flat surface (20) connected to the pipe (4) through which a heat exchange medium flows, while the flat lamella part (5a) comprises recesses (16) and projections (17, 18) in the arbitrary parts taken along two directions comprising a direction in which respective lateral sides (11, 11 ') are arranged and a direction in which respective end sides (12, 12') are arranged.

Description

537 136 DESCRIPTION CORRUGATED FLANGE AND HEAT EXCHANGER INCLUDING THE SAME 5 TECHNICAL FIELD

The present invention relates to a corrugated flange Rif dissipation of heat from a heat exchange medium in a heat exchanger such as a radiator, oil cooler, aftercooler or the like. The invention also relates to a heat exchanger comprising the corrugated flange.

STATE OF THE ART

In an engine compartment of a work vehicle such as a hydraulic excavator or an excavator, an engine, a radiator, a cooling surface and other devices are arranged in predefined position patterns. In use, the cooling surface causes a flow of cooling air that passes through the radiator and thus cools the engine's cooling water that circulates between the engine and the radiator.

The main construction of the radiator comprises an upper tank, a lower tank, a plurality of tubes and flanges.

The upper tank and the lower tank are interconnected by a plurality of tubes arranged at a predetermined distance from each other. Cooling water coming from the engine is stored in the upper tank, then passes through the plurality of tubes to be stored in the lower tank and is then returned to the engine.

The flanges are each arranged between the adjacent pipes and are joined with joint joints, for example lOdfOrband.

An example of the above-mentioned flange is a corrugated flange having flat parts and connecting parts which are alternately formed by bending into a corrugated shape (referring to, for example, patent documents 1, 2 and 3). The flat parts of such a corrugated flange each have a pair of opposite lateral sides and a pair of opposite end faces, while each connecting part is connected to the lateral sides of the flat parts. 1 537 136 DOCUMENTS THAT ARE THE PRIOR ART Patent document

232246. 228379. Patent Document 1: Japanese Unexamined Patent Publication No. 2007- Patent Document 2: Japanese Unexamined Patent Publication No. 2002- Patent Document 3: Japanese Unexamined Patent Publication No. H09- 155487.

The corrugated flange is manufactured, for example, by undergoing a savings manufacturing process and a corrugation process.

The spar production process is a process for forming a plurality of grooves on a surface of Cu strip-shaped sheets by feeding a non-wound strip-shaped sheet from a sheet roll between a pair of spar-making rolls or by pressing work using a press tool.

In the corrugation process, the strip-shaped sheet, which has undergone the spar production process, is fed through a pair of corrugation bends for bending, whereby the flat lamella parts and the connecting parts form a corrugated shape in an alternating sequence.

Examples of grooves formed in the strip-shaped sheet during the spar production process include grooves extending in a direction in which the pair of lateral sides of the flat lamella portion are arranged and grooves extending in the direction in which the pair of duct sides of the flat lamella portion are arranged .

Providing the planar lamella portion with grooves extending in the direction in which the pair of lateral sides are arranged may increase the bending resistance of a portion along the direction in which the pair of lateral sides are arranged. Consequently, the planar lamella portion can obtain increased rigidity with respect to such a bending process to bring the pair of lateral sides closer together. However, in some cases, a part along the direction in which the pair of lateral sides is arranged cannot obtain an increased bending resistance and thus the flat lamella part cannot obtain an increased rigidity with respect to such a bending method for bringing the pair of duck sides closer together. 2 537 136

Providing the planar lamella portion with grooves extending in the direction in which the pair of lateral sides is arranged may increase the bending resistance of a portion along the direction in which the pair of lateral sides are arranged. Consequently, the flat lamella member can obtain increased rigidity with respect to such a bending process to bring the pair of duck sides closer together. However, in this case, a part along the direction in which the pair of duct sides is arranged can not obtain an increased bending resistance and thus the flat lamella parts can not obtain an increased rigidity with respect to such a bending method to bring the pair of lateral sides closer together.

Thus, during the manufacture of conventional corrugated flanges or, more specifically, in the corrugation process, bending can occur at an unexpected position and thus a problematic increase in dimensional errors occurs.

For this reason, the dimensional errors of corrugated flanges accumulate when a radiator cell system is assembled by alternately stacking corrugated flanges and tubes, which in turn can give skew to a radiator cell system, giving problems with product quality being the answer to improve. Correcting a dimensional error of a corrugated flange requires extra time and work, while mounting so that the dimensional errors of the corrugated flanges take each other out requires high competence. In any case, the production thus becomes problematic.

SUMMARY OF THE INVENTION Problems Solved with the Invention

In view of the above-mentioned problems, the present invention aims to provide a corrugated flange capable of reliably preventing bending at an unexpected position during manufacture, thereby improving product quality and facilitating manufacture. The invention also aims to provide a heat exchanger comprising the corrugated flange.

Means to solve the problems

To achieve the above object, the corrugated flange of a according to a first embodiment of the present invention comprises a flat lamella part and a connecting part which are alternately formed into a corrugated shape by bending, said flat lamella part having a pair of lateral sides opposite 537 136 and a pair of opposite sides opposite each other, said connecting part connecting to a lateral side of a pair of lateral sides of the planar lamella part, said connecting part having a smooth surface which is connected to a tube through which a heat exchange medium is circulated and flat lamella part has at least one recess or projection in an arbitrary section taken along two directions, the two directions are in a direction in which the pair of lateral sides are arranged and in a direction in which the pair of duck sides are arranged.

According to a second embodiment of the invention based on the first embodiment, it is preferred that the smooth surface of the connecting part is formed into a flat surface.

According to a third embodiment of the invention based on the first embodiment, it is preferred that the smooth surface of the connecting part is formed into a curved surface.

According to a fourth embodiment of the invention based on the first, second or third embodiment, it is preferred that two or more recesses or protrusions are provided.

A heat exchanger according to a fifth embodiment of the invention comprises the corrugated flange of the first, second, third or fourth embodiment.

Advantages of the invention

In the corrugated flange of the first embodiment of the invention, the flat lamella part is provided with at least one recess or recess in the arbitrary section taken along two directions, these are, the direction in which the pair of lateral sides are arranged and the direction in which the pair of dry sides are arranged. The section along the direction in which the pair of lateral sides is arranged and the section along the direction in which the pair of lateral sides are arranged may have a respective bending resistance. For this reason, the flat lamella part may have an increased rigidity with respect to such a bending method for bringing the pair of lateral sides closer together as well as with respect to such a bending method for bringing the pair of duck sides closer together. 4 537 136 The connection part is not provided with any recess or projection as provided in the flat lamella part. This enables a large difference in stiffness between the flat lamella part and the connecting part, which enables simple and reliable bending at a boundary between the flat lamella part and the connection part.

In the corrugated flange according to the first embodiment, bending at an unexpected position can be prevented without exception during the production of the corrugated flange, whereby the dimensional error of the corrugated flange can be reduced.

Insertion of the structure according to the second embodiment can provide a surface connected to the pipe and a thermal contact surface, which enables a stronger connection between the corrugated flange and the pipe, and improves the thermal conductivity of the corrugated flange.

Insertion of the structure according to the third embodiment can avoid stress concentration of a bent part.

Furthermore, insertion of the structure according to the fourth embodiment can, without exception, equal the rigidity of the flat lamella part and enable lighter and more reliable bending at the boundary between the flat lamella part and the connecting part. The heat exchanger according to the fourth embodiment of the invention allows olcad product quality and is easy to manufacture.

BRIEF DESCRIPTION OF THE DRAWINGS

[FIG. 1] FIG. 1 is a schematic overview view, in perspective, of a radiator in accordance with a first exemplary embodiment of the present invention.

[FIG. 2] FIG. 2 is an enlarged perspective view, in perspective, of Part X of FIG. 1.

[FIG. 3] FIG. 3a shows the construction of the flat lamella part shown from the direction of pit Y in FIG. 2, and Figures 3 (b), 3 (c) and 3 (d) are sectional views along the respective lines A-A, B-B, B'-B 'in FIG. 3 (a).

[FIG. 4] FIG. 4 is an enlarged view of a central portion shown from the direction of arrow Z in FIG. 2.

[FIG. 5] FIG. 5 (a) shows a method for manufacturing a corrugated flange, FIG. Fig. 5 (b) shows a state view before bending, FIG. 5 (c) shows a state view after corrugation, and Figs. 5 (d) and 5 (e) show the respective shape of a smooth surface, FIG. 5 (d) shows a planar surface and FIG. 5 (e) shows a hat surface.

[FIG. 6] FIG. 6 shows variants of the corrugated flange in accordance with the first embodiment.

[FIG. 7] FIG. 7 (a) shows the construction of a flat lamella part of a corrugated flange in accordance with a second exemplary embodiment and Figures 7 (b), 7 (c) and 7 (d) are sectional views taken along the respective lines CC, DD, D "-D 'in FIG. 7 (a).

[FIG. 8] FIG. 8 (a) shows the construction of a planar lamella part of a corrugated flange in accordance with a third exemplary embodiment and Figures 8 (b), 8 (c) and 8 (d) are sectional views along the respective lines EE, FF, F ". -F "in FIG. 8 (a). [FIG. 9] FIG. 9 (a) shows the construction of a flat lamella portion of a corrugated flange in accordance with a fourth exemplary embodiment, and Figures 9 (b) and 9 (c) are sectional views taken along lines G-G, H-H in FIG. 9 (a).

[FIG. 10] FIG. 10 (a) shows the construction of a planar lamella portion of a corrugated flange in accordance with a fifth exemplary embodiment, and Figures 10 (b) and 10 (c) are sectional views taken along lines I-I, J-J in FIG. 10 (a).

[FIG. 11] FIG. 11 (a) shows the construction of a planar lamella portion of a corrugated flange in accordance with a sixth exemplary embodiment and Figures 11 (b) and 11 (c) are sectional views along respective lines K-K, L-L in FIG. 11 (a).

[FIG. 12] FIG. 12 (a) shows the construction of a flat lamella part of a corrugated flange in accordance with a seventh exemplary embodiment and Figures 12 (b), 12 (c), 12 (d) and 12 (e) are sectional views along the respective lines MM, M "-M", NN, N "-N 'in FIG. 12 (a).

[FIG. 13] FIG. 13 (a) shows the construction of a planar lamella portion of a corrugated flange in accordance with an exemplary embodiment, and Figures 13 (b) and 13 (c) are sectional views taken along lines Q-Q, R-R in FIG. 13 (a).

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Concrete embodiments of a corrugated flange and a heat exchanger comprising the corrugated flange according to the present invention will now be described with reference to the accompanying drawings. The following description provides an example in which the invention is applied to a radiator arranged in an engine compartment of a work vehicle such as a hydraulic excavator or an excavator. However, it is obvious that the invention can be applied to a heat exchanger which has the same basic construction as a radiator, such as an oil cooler or an aftercooler.

(UNDERSTANDING EXAMPLE EMBODIMENT) FIG. 1 is a schematic overview, in perspective, of a radiator comprising a corrugated flange in accordance with the first exemplary embodiment of the invention.

(Description of a schematic construction of the radiator) Radiator 1 shown in FIG. 1 is a device for dissipating heat which engine cooling water (a heat exchange medium) receives from an engine (not shown) and circulates between radiator 1 and the engine.

This radiator 1 has a main construction which comprises a byre tank 2, a lower tank 3, pipes 4 and corrugated flanges 5.

The upper tank 2 and the lower tank 3 are interconnected by the plurality of roots. 4, which makes it possible for the engine cooling water coming from the engine to be stored in the upper tank 2, then pass through the plurality of roots 4 to be stored in the lower tank 3 and then returned to the engine.

The tubes 4 and the corrugated flanges 5 are alternately stacked to form a radiator dryer 6.

(Description of the rudders) As shown in FIG. 2, the tubes 4 are each formed by a flattened rudder element having an inner channel 4a for the engine cooling water.

The plurality of tubes 4 are arranged at a predetermined distance Pa along the width direction RW of the radiator 1 and at a predetermined distance S the depth direction RD of the radiator 1.

(Brief description of a corrugated flange) The corrugated flange 5 is arranged between the pipes 4 which are adjacent in the width direction RW of radiator 1. The corrugated flange 5 has a flat lamella part 5a and a connecting part 5b which are alternately arranged to a corrugated mold by bending. 7,537,136

(Brief description of a planar lamella portion) Each planar lamella portion 5a is a rectangular lamella portion having a pair of lateral sides 11, 11 'facing each other in the width direction RW of radiator 1 and a pair of duck sides 12, 12' facing each other in the depth direction RD with radiator 1.

(Description of recessed recesses of a flat lamella part) As shown in FIG. 3 (a), the planar lamella portion is provided with, on its surface, the plurality of recessed recesses 13 regularly distributed at a predetermined distance Pb along the direction FD in which the pair of the side sides 12, 12 'are arranged.

The recessed recesses 13 extend linearly in a direction from the side of the duck 12 to the side of the duck 12 'at the same time as they slope in a direction from the lateral sides 11 to the lateral sides 11'.

The distance Pb for arranging the recessed recesses 13, an inclination angle, a length and a width of each recessed recess 13 is determined so that the adjacent recessed recesses 13 partially overlap each other when shown in the direction FW in which the pair of lateral sides 11, 11 'are arranged.

Providing the plurality of recessed recesses 13 on the surface of the planar lamella portion 5a causes a portion between the recessed recesses 13 to form a relatively strip-shaped projection 14. In addition, the arrangement of recessed recesses 13 on the surface of the planar lamella portion 5a results in the formation of corresponding strip-shaped recesses. - gap 15 (see figures 3 (b) and 3 (c)) on the back of the flat lamella part 5a.

(Description of recesses and protrusions of a flat lamella part in an arbitrary section) As shown in FIG. 3 (b), the planar lamella portion 5a has a plurality of recesses 16 defined by the respective plurality of recessed recesses 13 in the arbitrary section along the direction FD in which the pair of duct sides 12, 12 'are arranged. In other words, the plurality of projections 17, 18 of the planar lamella portion 5a are defined by the respective plurality of band-shaped projections 14, 15 in the arbitrary section along the direction FD in which the duct sides 12, 12 'are arranged.

As shown in Figures 3 (c) and 3 (d), the planar lamella portion 5a has recesses 16 defined by the respective recessed recesses 13 in the arbitrary section along direction FW in which the pair of lateral sides 11, 11 'are arranged. In other words, the flat lamella part 5a has projections 17, 18 defined by the respective band-shaped 8 537 136 projections 14, 15 in the arbitrary sections taken along direction FW in which the lateral sides 11, 11 'are arranged. It should be noted that it exists, as shown in FIG. 3 (c), a recess 16 defined by the recessed recess 13 or a protrusion 18 defined by the band-shaped protrusion 15 in the portion of the planar lamella portion 5a along the line B-B, while present, as shown in FIG. 3 (d), two recesses 16 defined by the respective recess-shaped recesses 13 or two projections 18 defined by the respective band-shaped projections 15 in the part along the line

(Brief description of a connection part) As shown in FIG. 4, the connecting part 5b is a rectangular lamella part which forms a right angle with the flat lamella part 5a, which is narrower than the flat lamella part 5a and has a smooth surface 21 connected to the tubes 4.

Conceptually, this smooth surface 20 had two states, one of which is off the surface 20 or a completely smooth surface free from blurring and of which the other is off the surface 20 is a substantially smooth surface which, in comparison with the sparse recesses 13, had extremely negligible foundations. savings (red residues) which are inevitably formed during a savings production process are carried out to form savings-shaped recesses 13 in the flat lamella part 5a. (Description of connection between a corrugated flange and a Mr) The corrugated flange 5 and the pipe 4 are connected to each other by Wining by using solder filler metal 22 applied between the smooth surface 20 of the connecting part 5b and the surface 21 of the pipe 4.

Due to the fact that it is flat, the flat surface 20 of the connecting part 5b may have a stone surface connected to the pipe 4 and a stone thermal contact surface directly with whether the flat surface 20 is a curved surface or an angular surface.

Obtaining a larger connection surface between the smooth surface 20 of the connection part 5b and the surface 21 of the tube 4 enables a stronger connection between the corrugated flange 5 and the tube 4.

Obtaining a stone thermal contact surface between the smooth surface 20 of the connecting part 5b and the surface 21 of the tube 4 enables efficient diversion of water from the engine cooling water flowing through the tube 4 and from the tube 4 to the corrugated flange 5 and thereby improves the thermal conductivity of the corrugated flange. 5.

(Description of method of manufacturing a corrugated flange) 9 537 136 A description is provided in addition to the method of manufacturing the corrugated flange with reference to FIG. 5 (a).

The manufacturing method for the corrugated flange 5 includes the spar manufacturing process and the corrugation process.

(Description of the savings manufacturing process) The savings manufacturing process involves a process for forming the plurality of savings-shaped recesses 13 on a surface of a strip-shaped sheet 30a, a corrugated flange material, by passing the strip-shaped sheet 30a unwound from the sheet roll 30 between a pair of first rollers 31, 31 '.

The pair of first rollers 31, 31 'have a plurality of recesses and protrusions (not shown) on their outer circumferential surface to correspond to the plurality of recessed recesses 13 to form the strip-shaped sheet 30a. When the first rollers 31, 31 'are rotated in the respective arrow directions according to the drawing, the strip-shaped sheet 30a is inserted between these rollers 31, 31' and is then fed downstream. The plurality of the recessed recesses 13 are formed on the surface of the strip-shaped sheet 30a as a result of the strip-shaped sheet 30a being inserted between the recesses of the first roll 31 on one side and the projections on the first roll 31 'on a second side.

It should be noted that similar recessed recesses 13 can be formed on the surface of the strip-shaped sheet 30a by press work using a press tool.

(Description of the Corrugation Process) The corrugation process is a bending process in which the strip-shaped sheet 30a, which is fed between the pair of first rollers 31, 31 'and through a pair of other rollers 32, 32' arranged upstream of the first rollers 31, 31 ', form the planar lamella portions 5a and the connecting portions 5b to the corrugated mold in an alternating sequence. The pair of other rollers 32, 32 'have a plurality of teeth (not shown) on their outer circumferential surfaces for bending the strip-shaped sheet 30a having recess-shaped recesses 13 formed on its surfaces into the corrugated mold. The teeth of the roller 32 and the teeth of the roller 32 'are shaped to engage each other. When the other rollers 32, 32 'are rotated in the respective arrow directions according to the drawing, the strip-shaped sheet 30a is inserted between these rollers 32, 32' and is then fed downstream. The strip-shaped sheet 30a has been bent into the corrugated mold as a result of being inserted in a space between the teeth of the second roller 32 and the teeth of the second roller 32 '.

As shown in FIG. 5 (b), the strip-shaped sheet 30a which will undergo the corrugation sections (shown by arrows T in the drawing) is free from spar-shaped recesses 13 and strip-shaped projections 14 as a result of the spar-shaped recesses 13. The corrugation is carried out so that these sections become connecting parts 5b which each has a smooth surface 20 (see FIG. 5 (c)).

In this embodiment, the smooth surface 20 is planar as shown in FIG. 5 (d).

However, the smooth surface 20 is not limited to this embodiment but may also be curved as shown in FIG. 5 (e). The formation of the smooth surface 20 into a curved surface allows spreading concentration in the bent part to be avoided.

The corrugated fluid 5 which has undergone the corrugation process is thus inserted between the adjacent tubes 4 and connected to these roots. 4 by soldering.

(Description of the effect of the first embodiment) In the corrugated seam 5 of the first embodiment, the flat lamella part 5a is provided with, as shown in Figures 3 (b) and 3 (c), recesses 16 defined by recessed recesses. 13 or projections 17, 18 defined by band-shaped projections 14, 15 in the arbitrary sections taken along the respective two directions, these are, direction FW in which the pair of lateral sides 11, 11 are arranged and direction FD in which the pair of lateral sides 12 , 12 'ar arranged. This can increase the bending resistance of the part along the direction FD in which the end sides 12, 12 'are arranged as the bending resistance of the part along the direction FW in which the lateral sides 11, 11' are arranged. For this reason, the flat lamella portion 5a may have increased rigidity with respect to such a bending process to bring the lateral sides 11, 11 'together as well as with respect to a bending process to bring the duck sides 12, 12' closer together.

The connection part 5b is not provided with recesses 16 defined by the spar-shaped recesses 13 or projections 17, 18 defined by the respective band-shaped projections 14, 15 which are arranged on the flat lamella part 5a. This allows a large difference in stiffness between the flat lamella part 5a and the connecting part 5b, which enables simple and reliable bending at a boundary between the flat lamella part 5a and the connecting part 5b.

Thus, bending at unexpected positions can be avoided without exception during the manufacture of the corrugated flange 5 or, more specifically, in the corrugation process and thereby the dimensional errors of the corrugated flange 5 are reduced.

The radiator core 6 of the radiator 1 of the first embodiment is salted together through all the alternately stacked root 4 and corrugated flanges 5. Since dimensional errors of each corrugated flange 5 can be reduced, the radiator core 6 does not become skewed and thus the product quality increases. In addition, no correction of dimensional errors of the corrugated flange 5 is required and no high competence is required to compensate dimensional errors against each other and thus the production is facilitated.

(Description of variants of the first embodiment) Figures 6 (a) to 6 (f) are plan views of the respective flat lamella parts 5a, showing variants of the corrugated flange 5 of the first embodiment.

The corrugated flange 5 of the first embodiment has, at its flat lamella part 5a, at least one recess 16 defined by the recessed recess 13 in the arbitrary part taken along each of the two directions, these are, direction FW in which the pair of duck sides 12, 12 ' are arranged and direction FD in which the pair of duck sides 12, 12 'are arranged. Appropriate variations can be made of this construction without deviating from the spirit of the construction.

For example, the spar-shaped recess 13 may be replaced with the spar-shaped recess 13a having stone spar on the recess 13 shown in FIG. 6 (a).

As shown in FIG. 6 (b), the distance Pb at which the spar-shaped recess 13 is arranged may be different to a smaller distance Pc.

Sh. As shown in FIG. 6 (c), the spar-shaped recesses 13 can be arranged at at least two different distances Pd, Pe.

As shown in FIG. 6 (d), the spar-shaped recesses 13, 13A having different saving widths can be arranged alternately.

As shown in FIG. 6 (e), a plurality of recessed recesses 13B are shorter than the recessed recesses 13 arranged alternately as equivalents to the recesses 13.

While the spout-shaped recesses 13 extend linearly in the direction from the end face 12 of the flat lamella portion 5a to the end face 12 'and inclined in the direction 12 537 136 from the lateral side 11 towards the lateral side 11', the spar-shaped recesses 13C shown in FIG. . 6 (f) is informed instead. These recesses 13C extend linearly in the direction from the end face 12 of the planar lamella portion 5a to the end face 12 'and inclined in an opposite direction, that is, from the lateral side 11' to the lateral side 11.

(Second to Eighteenth Exemplary Embodiments) Hereinafter, the descriptions of the corrugated flanges 5A to 5G will be provided separately in accordance with the respective second to eighteenth embodiments of the present invention. In the following embodiments, elements similar to those of the first embodiment have the same reference numerals in the drawings, the detailed descriptions of these elements have been omitted, and emphasis has been placed on various features not seen in the first embodiment.

(Description of recessed recesses of a flat lamella part shown in FIG. 7 (a) according to the second embodiment.) As shown in FIG. 7 (a), the corrugated flange 5A of the second embodiment, on a surface of its flat lamella portion 5a, has a plurality of recessed recesses regularly distributed at a predetermined distance Pf along the direction FD in which a pair of side sides 12, 12 'are arranged.

Each recess-shaped recess 40 is formed by first recess-shaped recesses 40a and second recess-shaped recesses 40b, and in the plan view with face side 12 'of the flat lamella part 5a which is above the second end face 12, the first and second recess-shaped recesses 40a, 40b are connected in a V-shape.

Starting from a center point in the direction FW in which a pair of lateral sides 11, 11 'of the flat lamella part 5a are arranged, the first recessed recess 40a extends linearly in a direction from the duck side 12 to the duck side 12' and inclined in a direction from the lateral side 11 to the lateral side 11 '.

Starting from the center of the direction FW in which the lateral sides 11, 11 'of the flat lamella part 5a are arranged, the second spar-shaped recess 40b extends linearly in the direction from the side 12 to the side 12' and slopes in a direction from the lateral side 11 to the lateral side 11 '.

(Description of recesses and projections of a flat lamella part in any parts shown in Figures 7 (b), 7 (c) and 7 (d) according to the second embodiment) As shown in FIG. 7 (b), the planar lamella part has a plurality of recesses 41 defined by the respective plurality of spar-shaped recesses 40 in the arbitrary part Fang direction FD in which the pair of arid sides 12, 12 'are arranged. In other words, the flat lamella part 5a has the plurality of projections 44, 45 defined by the plurality of band-shaped projections 42, 43 in the arbitrary part taken along the direction FD in which the end faces 12, 12 'are arranged.

As shown in Figures 7 (c) and 7 (d), the flat lamella portion 5a has recesses 41 defined by the recessed recesses 40 in the arbitrary portions taken along the direction FW in which the pair of lateral sides 11, 11 "dr are arranged. word has the planar lamella portion 5a protrusions 44, 45 defined by band-shaped protrusions 42, 43 in the arbitrary portions taken along the direction FW in which the lateral sides are arranged.It should be noted that it is firm, as shown in Fig. 7 (c), a recess 41 defined by the recessed recess 40 or a projection 45 defined by the band-shaped projection 43 in the portion of the planar lamella portion 5a along line DD, while there are, as shown in Fig. 7 (d), two recesses 41 defined by the recessed recesses 40 or two projections defined by the recessed recesses 40 or two recesses 45 defined by the band-shaped recesses 43 in the part along line D'-D.

(Description of recessed recesses of a flat lamella part shown in FIG. 8 (a) according to the third embodiment) As shown in FIG. 8 (a), the corrugated flange 5B of the third embodiment has a surface of its planar lamella portion 5a with the plurality of recessed recesses 46 regularly distributed at a predetermined distance Pg taken along the direction FD in which the pair of side sides 12, 12 'are arranged.

The recess-shaped recesses 46 are recesses, each of which is hooked into a bag shape which bulges towards the duck side 12 between the lateral sides 11, 11 '.

(Description of recesses and projections of the flat lamella part in the arbitrary parts shown in Figs. 8 (b), 8 (c) and 8 (d) according to the third embodiment) As shown in Figs. 8 (b), the planar lamella portion 5a has the plurality of recesses 47 defined by the respective plurality of recessed recesses 46 in the arbitrary section taken along the direction FD in which the pair of duct sides 12, 12 'are arranged. In other words, the flat lamella part 5a has the plurality of projections 50, 51 defined by the respective plurality of 14 537 136 band-shaped projections 48, 49 in the arbitrary section taken along the direction FD in which the duct sides 12, 12 'are arranged.

As shown in Figures 8 (c) and 8 (d), the planar lamella portion 5a has recesses 47 defined by the recessed recesses 46 in the arbitrary sections taken along the direction FW in which the pair of lateral sides 11, 11 'r are arranged. In other words, the flat lamella part 5a has projections 50, 51 defined by band-shaped projections 48, 49 in the arbitrary sections taken along the direction FW in which the lateral sides 11, 11 'are arranged. It should be noted that it exists, as shown in FIG. 8 (c), a recess 47 defined by the spherical recess 46 or a protrusion 51 defined by the band-shaped protrusion 49 in the portion of the planar lamella portion 5a along the line F-F, while present, as shown in FIG. 8 (d), two recesses 47 defined by the spar-shaped recesses 46 or two projections 51 defined by the band-shaped projections 49 in the part along line F'-F '. (Description of sph-shaped recesses of a flat lamella part shown in FIG. 9 (a) according to the fourth embodiment) Shsom shown in FIG. 9 (a), the corrugated flange 5C of the fourth embodiment has a surface ph its flat lamella portion 5a and the plurality of recessed recesses 52 are regularly distributed ph a predetermined distance Ph along the direction FD in which the pair of duct sides 12, 12 'are arranged.

Each spar-shaped recess 52 dr formed by the first spar-shaped recess 52a, the second spar-shaped recess 52b, the third spar-shaped recess 52c and the fourth spar-shaped recess 52d. In the plan view with the duck sides 12 'of the flat lamella part which is above the second duck side 12, the Rirsta is connected to the fourth spherical recess 52a, 52b, 52c, 52d in a W-shape.

Starting from a point arranged in the middle between the lateral side 11 'and a center point of direction FW in which the lateral sides 11, 11' of the planar lamella part 5a are arranged, the first recessed recess 52a extends linearly in a direction from the side 12 to and side side 12 'and at the same time inclined in a direction from the lateral side 11 to the lateral side 11'.

Starting from the point arranged in the middle between the lateral side 11 'and the center of the direction FW in which the lateral sides 11, 11' of the flat lamella part 5a are arranged, the second recessed recess 52b extends linearly in the direction 537 136 from the side 12 to dnd side 12 'and at the same time sloping in a direction from the lateral side 11' to the lateral side 11.

Starting from a point in the middle between the lateral side 11 and the midpoint of direction FW in which the lateral sides 11, 11 'of the flat lamella part 5a are arranged, the third recessed recess 52c projects linearly in the direction from the side 12 and to the side 12' and simultaneously inclined in the direction from the lateral side 11 to the lateral side 11 '.

The starting file point arranged in the middle between the lateral side 11 and the center point of direction FW in which the lateral sides 11, 11 'of the flat lamella part 5a are arranged, the fourth spar-shaped recess 52d projects linearly in the direction from the side 12 to the side 12' and simultaneously inclined in the direction from the lateral side 11 'to the lateral side 11.

(Description of recesses and projections of a flat lamella part in arbitrary parts shown in Figs. 9 (b) and 9 (c) according to the fourth embodiment) As shown in Figs. 9 (b), the planar lamella portion 5a has the plurality of recesses defined by the respective plurality of recessed recesses 52 in the arbitrary section taken along the direction FD in which the pair of duct sides 12, 12 'are arranged. In other words, the flat lamella part 5a has the plurality of projections 56, 57 defined by a respective plurality of band-shaped projections 54, 55 in the arbitrary section taken along the direction FD in which the duck sides 12, 12 'are arranged.

As shown in FIG. 9 (c), the planar lamella portion 5a has at least two recesses 53 defined by the recessed recesses 52 in the arbitrary section taken along the direction FW in which the pair of lateral sides 11, 11 'are arranged. In other words, the flat lamella part 5a has at least two projections 56, 57 defined by the band-shaped projections 54, 55 in the arbitrary section taken along the direction FW in which the lateral sides 11, 11 'are arranged.

(Description of recessed recesses of a flat lamella part shown in FIG. 10 (a) according to the fifth embodiment) As shown in FIG. 10 (a), the corrugated flange of the fifth erosion shape, on a surface of its planar lamella portion 5a, has the plurality of recessed recesses 58 regularly distributed at a predetermined distance Pi along direction FW in which the pair of lateral sides 11, 11 ' are arranged. Each recess-shaped recess 58 is formed by the first recess-shaped recess 58a, the second recess-shaped recess 58b, the third recess-shaped recess 58c and the fourth recess-shaped recess 58d and is in the plan view with the lateral side 11 'of the flat lamella portion 5a above it. second lateral side 11, the first is connected to the flared recess-shaped recess 58a, 58b, 58c, 58d in an M-shape.

Starting from a point arranged in the middle between the duck side 12 and a center point of direction FD in which a pair of duck sides 12, 12 'of the flat lamella part 5a are arranged, the first recessed recess 58a extends linearly in a direction from the duck side 12' to side side 12 while tilting in a direction from the lateral side 11 'to the lateral side 11.

Starting from the point arranged in the middle between the duck side 12 and the center point of direction FD in which the duck sides 12, 12 'of the flat lamella part 5a are arranged, the second spar-shaped recess 58b extends linearly in a direction from the duck side 12 to the duck side 12' at the same time inclined in a direction from the lateral side 11 'to the lateral side 11.

Starting from a point arranged in the middle between the end face 12 'and the center point of direction FD in which the lateral sides 12, 12' of the flat lamella part 5a are arranged, the third recessed recess 58c extends linearly in the direction from the end side 12 'to the end side 12 while tilting in a direction from the lateral side 11 'to the lateral side 11.

Starting from the point arranged in the middle between the end face 12 'and the center point of direction FD in which the lateral sides 12, 12' of the flat lamella part 5a are arranged, the fourth spar-shaped recess 58d extends linearly in the direction from end face 12 to end face 12 'simultaneously as it slopes in the direction from the lateral side 11 'to the lateral side 11.

(Description of recesses and protrusions of the planar lamella part in the arbitrary parts shown in Figures 10 (b) and 10 (c) according to the fifth embodiment) As shown in FIG. (B) harden the planar lamella portion 5a at least two. recesses 59 defined by the recessed recesses 58 in the arbitrary section taken along direction FD in which the pair of duck sides 12, 12 'are arranged. In other words, the flat lamella part 5a has at least two projections 62, 63 defined by the band-shaped projections 17 537 136 60, 61 in the arbitrary section taken along the direction FD in which the duck sides 12, 12 'are arranged.

As shown in FIG. (C), the planar lamella portion 5a has the plurality of recesses 59 defined by the respective plurality of recessed recesses 58 in the arbitrary section taken along the direction FW in which the pair of lateral sides 11, 11 'are arranged. In other words, the flat lamella part 5a has the plurality of projections 62, 63 defined by the band-shaped projections 60, 61 in the arbitrary part taken along the direction FW in which the lateral sides 11, 11 'are arranged.

(Description of recessed recesses of a flat lamella part shown in FIG. 11 (a) according to the sixth embodiment) As shown in FIG. 11 (a), the corrugated flange 5E of the sixth embodiment, on a surface of its planar lamella portion 5a, has the plurality of first recessed recesses 64 and the plurality of second recessed recesses 65 which are regularly distributed at a predetermined distance Pj along the direction FD in which a pair pages 12, 12 are arranged.

Each first recessed recess 64 extends linearly in a direction from the side of the duct 12 to the side of the duck 12 'while inclining in a direction from the lateral side to the lateral side 11'.

Each other recess-shaped recess 65 extends linearly in a direction from the side of the duck side 12 to the side of the duck side 12 'while it is inclined in a direction from the lateral side to the lateral side 11'.

The first spar-shaped recesses 64 cross the second spar-shaped recesses 65 and thus form a night-like monster in its entirety.

(Description of recesses and projections of the planar lamella part in the arbitrary sections shown in Figures 11 (b) and 11 (c) according to the sixth embodiment) As shown in FIG. 11 (b), the planar lamella portion 5a has the plurality of recesses 66 defined by the plurality of recessed recesses 64, 65 in the arbitrary section taken along the direction FD in which the pair of duct sides 12, 121r are arranged. In other words, the flat lamella part 5a has the plurality of projections 69, 70 defined by a plurality of band-shaped projections 67, 68 in the arbitrary section taken along the direction FD in which the duck sides 12, 12 'are arranged. 18 537 136 As shown in FIG. 11 (c), the planar lamella portion 5a has the plurality of recesses 66 defined by the plurality of recessed recesses 64, 65 in the arbitrary section taken along the direction FW in which the pair of lateral sides 11, 11 'r are arranged. In other words, the flat lamella part 5a has the plurality of projections 69, 70 defined by the plurality of band-shaped projections 67, 68 in the arbitrary section taken along the direction FW in which the lateral sides 11, 11 'are arranged.

(Description of recessed recesses of a flat lamella part shown in FIG. 12 (a) according to the seventh embodiment) As shown in FIG. 12 (a), the corrugated flange of the seventh embodiment has a first recessed recess 71 and a second recessed recess 72 on a surface of its flat lamella portion 5a.

The first spar-shaped recess 71 extends linearly between a horn where the lateral side 11 and the duck side 12 are opposite and a horn where the lateral side 11 'and the duck side 12 are opposite.

The second spar-shaped recess 72 extends linearly between a horn where the lateral side 11 and the duck side 12 opposite and a horn where the lateral side 11 'and the duck side 12' opposite.

The first spar-shaped recess 71 and the second spar-shaped recess 72 face each other and thus form an X-shape.

(Description of recesses and projections of a flat lamella part in arbitrary sections in Figures 12 (b), 12 (c), 12 (d) and 12 (e) according to the seventh embodiment) As shown in Figures 12 ( b) and 12 (c) the flat lamella part 5a has recesses 73, 74 defined by the spar-shaped recesses 71, 72 in the arbitrary sections taken along the direction FD in which the pair of duck sides are arranged. In other words, the flat lamella part 5a has projections defined by band-shaped projections 75, 76 in the arbitrary sections taken along the direction FD in which the end faces 12, 12 'are arranged. It should be noted that there is, as shown in FIG. 12 (b), a recess 73 (74) defined by the spar-shaped recess 71 (72) or a recess 77 (78) defined by the band-shaped projection 75 (76) in the part of the flat lamella part 5a along line MM, while it is , as shown in FIG. 12 (c), two recesses 73 (74) defined by the respective spar-shaped recesses 71 (72) or two projections 77 (78) defined by respective band-shaped projections 75 (76) in the part along line M'-M. As shown in Figures 12 (d) and 12 (e), the planar lamella portion 5a has recesses 73, 74 defined by recessed recesses 71, 72 in the arbitrary sections taken along direction FW in which the pair of lateral sides 11, 11 ' are arranged. In other words, the flat lamella part 5a has projections 77, 78 defined by band-shaped projections 75, 76 in the arbitrary sections taken along the direction FW in which the lateral sides 11, 11 'are arranged. It should be noted that it exists, as shown in FIG. 12 (d), a recess 73 (74) defined by the recessed recess 71 (72) or protrusions 77 (78) defined by the band-shaped protrusion 75 (76) in the portion of the planar lamella portion 5a along line NN, while present, as shown in FIG. 12 (e), two recesses 73 (74) defined by the respective recess-shaped recesses 71 (72) or two projections 77 (78) defined by respective band-shaped projections 75 (76) in the part along line

(Description of semi-rigid recesses of a flat lamella part shown in FIG. 13 (a) according to the eighth embodiment) As shown in FIG. 13 (a), the corrugated flange of the 5th embodiment, on a surface of its planar lamella portion 5a, has the plurality of semi-rigid recesses 79i arranged in a zigzag in the direction FW in which the pair of lateral sides 11, 11 'are arranged as well as in the direction FD in which the pair of sides 12, 12 'are arranged.

According to the distance Pk for arranging the semicircular recesses 79 and a diameter of each semicircular recess 79, it is determined that the semicircular recesses 79 are adjacent in the direction FD in which the sides 12, 12 'there are arranged partially overlapping each other when shown in the direction FW in which the lateral sides 11, 11 'are arranged. The distance Pm for arranging the semicircular recesses 79, the diameter of the usual semicircular recess 79 is determined so that the semiconductor recesses 79 adjacent in the direction FW in which the lateral sides 11, 11 'are arranged partially overlapping each other in the direction FD in which the sides 12, 12 'are arranged.

(Description of recesses and protrusions of the flat lamella part in the arbitrary sections shown in Figures 13 (b) and 13 (c) according to the eighth embodiment) As shown in FIG. 13 (b), the planar lamella portion 5a has the plurality of recesses 80 defined by the respective plurality of semicircular recesses 79 in the arbitrary section taken along the direction FD in which the pair of duct sides 12, 12 'are arranged. In other words, the planar lamella part 5a has the plurality of projections 82 defined by a respective plurality of 537 136 semicircular projections 81 in the arbitrary section taken along the direction FD in which the side faces 12, 12 'are arranged.

As shown in FIG. 13 (c), the planar lamella portion 5a has the plurality of recesses 80 defined by the respective plurality of hemispherical recesses 79 in the arbitrary section taken along the direction FW in which the pair of lateral sides 11, 11 'ir are arranged. In other words, the planar lamella part 5a has the plurality of projections 82 defined by the respective plurality of semicircular projections 81 in the arbitrary section taken along the direction FW in which the lateral sides 11, 11 'are arranged.

(Description of the effects of the second to the eighth embodiments) Also in each corrugated flange 5A, 5B, 5C, 5D, 5E, 5F, 5G of the second to the eighth embodiment, the planar lamella portion 5a is provided with at least one recesses 41, 47, 53, 59, 66, 73 or 74 defined by a savings form recesses 40, 46, 52, 58, 64, 65, 71 or 72 or at least one projection 44, 45, 50, 51, 56, 57, 62, 63, 69, 70, 77 or 78 defined by a band-shaped projection 42, 43, 48, 49, 54, 55, 60, 61, 67, 68, 75 or 76 or at least one recess 80 defined by a semicircular recess 79 or at least one projection 82 defined by a hemispherical projection 81 in the arbitrary section taken along the two directions, which is, direction FW in which the pair of lateral sides 11, 11 'are arranged and direction FD in which the pair of duck sides 12, 12' are arranged. This can increase the buoy resistance of the part along the direction FD in which the end faces 12, 12 'are arranged as well as the buoy resistance of the part along the direction FW in which the lateral sides 11, 11' are arranged. Therefore, the corrugated flanges 5A to 5G of the second to eighth embodiments can provide the same properties as the corrugated flange 5 of the first embodiment. Similar to radiator 1 of the first embodiment, radiators comprising such and corrugated flanges 5A to 5G, respectively, have increased product quality, which facilitates their manufacture.

The embodiments and variations of the corrugated flange and the heat exchanger comprising the corrugated flange according to the present invention have been described above. However, the present invention is not limited to the constructions described in the above embodiments or variations and allows suitable variations on each of the constructions without departing from the scope of the present invention, such as, conveniently combining constructions of the embodiments and variants described above. . 21 537 136 INDUSTRIAL APPLICABILITY

A corrugated flange and a heat exchanger comprising the corrugated flange according to the present invention have the property of being capable of reliably preventing bending at an unexpected position during manufacture and thereby improving product quality and facilitating manufacture and being suitable for use in radiators. an oil cooler, an aftercooler or the like.

Description of the reference numbers in the drawings

1radiator (heat exchanger) 4rot. 5, 5A, 5B, 5C, 5D, 5E, 5F, 5G corrugated flanges 5aplan larnell part 5connection part 11, 11 'lateral sides 12, 12' and sides 13spore-shaped recess (first embodiment) 13Aspar-shaped recess (variant of the first embodiment) first embodiment) strip-shaped projections (first embodiment) 16 recesses (first embodiment) 17, 18 projections (first embodiment) even surface spar-shaped recesses (second embodiment) 41 recesses (second embodiment) 42, 43 strip-shaped projections (second, 45 embodiments) the embodiment) 46spat-shaped recess (third embodiment) 47cut (third embodiment) 49, 48 strip-shaped projections (third embodiment) 50, 51 protrusions (third embodiment) 52cut-shaped recess (fourth embodiment) 22 537 136 53cut (fourth embodiment 54, strip 54 protrusions (fourth embodiment) 56, 57 protrusions (fourth embodiment) 58saved recess (fifth embodiment) 59 recesses (fifth embodiment en) 60, 61 band-shaped projections (fifth embodiment) 62, 63 projections (fifth embodiment) 64, 65 groove-shaped recesses (sixth embodiment) 66 recesses (sixth embodiment) 67, 68 band-shaped projections (sixth embodiment) 69, 70 projections (sixth embodiment) 71, 72 recessed recesses (seventh embodiment) 73, 74 recesses (seventh embodiment) 75, 76 band-shaped recesses (seventh embodiment) 77, 78 recesses (seventh embodiment) 79 semi-recessed recess (eighth embodiment) 80 recesses (eighth embodiment) ) 82protection (eighth embodiment)

Claims (1)

REQUIRED 1. Corrugated flange for a heat exchanger (1) comprising a flat lamella part (5a) and a connecting part (5b), which are alternately formed into a corrugated shape by bending, said flat lamella part 1. having a pair of lateral sides ( 11, 11 ') opposite each other and a pair of duck sides (12, 12') opposite each other, said connecting part 2. being connected to a lateral side (11, 11 ') of the pair of lateral sides (11, 11') of the flat lamella part (5a), used in said connecting part (5b), has a smooth surface (20) which is connected to a tube (4) through which a heat exchange medium is circulated, used in said flat lamella part (5a), on the surface & ray, recessed recesses ( 13, 40) or band-shaped projections (14, 42) extending obliquely in relation to the pair of lateral sides (11, 11 '), used in at least one recess (13) or projections (14) are present in an arbitrary section taken along two directions of the flat lamella part (5a), one of the two directions constituting a direction in which pa the lateral sides (11, 11 ') are arranged and the other of the two directions forms a direction in which the pair of duct sides (12, 12') are arranged, characterized in that each spar-shaped recess (40) has a first spar-shaped recess (40a) and a second spar-shaped recess (40b) or vane in each band-shaped protrusion (42) has a first strip-shaped protrusion and a second band-shaped protrusion, vane in the first spar-shaped recess (40a) and the second spar-shaped recess (40b) or the first band-shaped projection and the second band-shaped projection opposite at a midpoint between the pair of lateral sides (11, 11 '), used in the first spar-shaped recess (40a) or the first band-shaped projection extending inclined in a direction from a first lateral side (11) to a second lateral side (11 "), 24 537 136 van in the second spar-shaped recess (40b) or the second band-shaped projection extends inclined in a direction from the second lateral side (11 ') to the first lateral side (11 ), and used in the first spar-shaped recess (40a) and the second spar-shaped recess (40b) or the first band-shaped projection and the second band-shaped projection are connected in a V-shape in the plan view and are regularly distributed on a predetermined al / stand (N) along a direction (FD) extending from one side of the duck (12) to the other side of the duck (12 '). Corrugated flange according to claim 1, wherein the smooth surface (20) of the connecting part (5b) is formed into a flat surface. A corrugated flange according to claim 1, wherein the smooth surface (20) of the connecting part (5b) is formed into a curved surface. A heat exchanger comprising the corrugated flange according to claims 1 to 3,537,136 1. 1,537,136,537,136 1,4 1 1-41I "+ 0. 1 F'D 12 'AA 13,)„ 13 537 136 714 z 21 C, Ct '' -) $ If 4. 7 $ 1f4: $ 1. 4 ') Lcz. 537 136 .4 1 13 2? .Y <'7 • 41 / -' 1, 1 << 4 oz, 74 ›: 56 / 5.C: f 4e V; f .. • '4, • 0- • 13B --- „13 \! •> ,,, 1 12, 537 136 Fir r-7 r: A 42'b - 5; 3 1 45" 4 :) 4,3 - 537 136 G g7;, 49- QFF 12 46r-w - 47 • fr'N 46 ------ --------- 537 136 5: 3 53 '537 136 •' , - ■ 1 1 f •) 8c - rn - - 58 rr) 19 12 '-' 537 136 PJ fr-D -6464 • - ', "A • •••.„; - ,,,, ... l's- <A 0 (\ --et "As.: .... e.fV.: \ - • -ee. ,,,,, ... 1 zr„. „ - .. \ .. „..;;, I • X - \., .. ,, w r- '