Stacked heat exchanger using flow path substrate manufactured by processing process

Abstract

This stacked heat exchanger comprises a first flow path substrate and a first inlet / outlet path substrate. A plurality of first flow paths extending in a first direction are formed on the first flow path substrate. The first inlet / outlet path substrate is stacked on the first flow path substrate, and a plurality of first inlet / outlet paths are formed at respective corners facing each other in the first direction. In this case, the respective first flow paths extend through the first flow path substrate, and the respective first inlet / outlet paths partially overlap the respective first flow paths, so that a fluid introduced or discharged through the first inlet / outlet paths is provided to the first flow paths.

Description

A laminated heat exchanger using a Euro substrate manufactured through a machining process

[0001] The present invention relates to a heat exchanger using a flow path substrate manufactured through a processing process, and more particularly, to a laminated heat exchanger manufactured by forming flow paths and inlets and outlets of the flow paths on a flat plate through a cutting processing process and then laminating the flat plates, wherein the flow paths and inlets and outlets of the flow paths are manufactured through a processing process such as laser processing, making processing easy, and enabling the formation of a complex flow path through various laminated structures.

[0002] A printed circuit heat exchanger is a type of heat exchanger that is manufactured by forming microchannels on a flat plate using a chemical etching method and then laminating them.

[0003] In the case of these printed circuit board type heat exchangers, they have the advantage of being able to significantly reduce the size compared to the same heat exchange capacity because they can have a high insulation area while minimizing the volume and weight, and can be used in ultra-high temperature environments, ultra-high pressure environments, and even ultra-low temperature environments, so demand for them is increasing, especially in the shipbuilding and marine industries, power generation industries, and hydrogen industries.

[0004] However, in the case of these printed circuit board type heat exchangers, although they are being developed in various ways, such as in Japanese Patent Publication No. 2019-086278 or Korean Patent Publication No. 10-2023-0006280, the technology for forming the flow path through which the refrigerant or working fluid is basically provided is mainly through a chemical etching method, and this is only being developed.

[0005] However, in the case of a laminated structure in which channels are formed on a flat plate using this chemical etching method, there is a limitation in that the exchange of channels between the vertically stacked plates is difficult. In addition, the chemical etching method also has a limitation in that it is difficult to precisely process the shape of the channels.

[0006] Accordingly, the ability of the refrigerant or working fluid to flow in a complex manner on a single flat plate to further enhance the cooling or heating effect is limited, and the formation of a complex flow path that provides or discharges the refrigerant or working fluid in a variety of ways into the interior of the heat exchanger is also limited.

[0007] Related prior art documents include Japanese Patent Publication No. 2019-086278 and Korean Patent Publication No. 10-2023-0006280.

[0008] Accordingly, the technical problem of the present invention is conceived from this point, and the purpose of the present invention is to provide a laminated heat exchanger manufactured by forming a flow path and an inlet and outlet of the flow path on a flat plate through a cutting process and then laminating the flat plates, wherein the flow path and the inlet and outlet of the flow path are manufactured through a processing process such as laser processing, thereby facilitating processing, and by forming a composite flow path through various laminated structures, thereby further improving heat exchange efficiency.

[0009] According to one embodiment of the present invention for realizing the above-described object, a laminated heat exchanger includes a first flow path substrate and a first inlet / outlet substrate. The first flow path substrate has a plurality of first flow paths formed therein that extend in a first direction. The first inlet / outlet substrate is laminated on the first flow path substrate, and a plurality of first inlet / outlet passages are formed at respective corners facing each other in the first direction. In this case, each of the first flow paths extends through the first flow path substrate, and each of the first inlet / outlet passages partially overlaps each of the first flow paths, so that fluid flowing in or flowing out through the first inlet / outlet passages is provided to the first flow paths.

[0010] In one embodiment, each of the first inlet and outlet passages may include a first inlet passage extending a predetermined length through the first inlet and outlet passage substrate from a first corner of the first inlet and outlet passage substrate, and a first outlet passage extending a predetermined length through the first inlet and outlet passage substrate from a second corner opposite the first corner.

[0011] In one embodiment, the second path substrate may further include a second path substrate laminated on the first path substrate and having a plurality of second paths formed thereon that extend in a direction different from the extension direction of the first paths, and a second path substrate laminated on the second path substrate and having a plurality of second paths formed at each of corners facing each other in a second direction perpendicular to the first direction.

[0012] In one embodiment, each of the second flow paths extends through the second flow path substrate, and each of the second inlet and outlet passages partially overlaps each of the second flow paths, so that fluid flowing in or out through the second inlet and outlet passages can be provided to the second flow paths.

[0013] In one embodiment, each of the second inlet and outlet passages may include a second inlet passage extending a predetermined length through the second inlet and outlet passage substrate from a third corner of the second inlet and outlet passage substrate, and a second outlet passage extending a predetermined length through the second inlet and outlet passage substrate from a fourth corner opposite the third corner.

[0014] In one embodiment, each of the second flow paths may include a first sub-flow path extending along the second direction and partially overlapping with the second inflow path, a second sub-flow path extending from the first sub-flow path and extending along the first direction, and a third sub-flow path extending from the second sub-flow path and extending along the second direction and partially overlapping with the second outflow path.

[0015] In one embodiment, each of the first euros, the second euros, the first inlet / outlet channels, and the second inlet / outlet channels may be formed by a cutting process on the first euro substrate, the second euro substrate, the first inlet / outlet channel substrate, and the second inlet / outlet channel substrate.

[0016] In one embodiment, each of the first euros, the second euros, the first inlet / outlet channels and the second inlet / outlet channels may extend in parallel with a plurality of equal distances from each other.

[0017] In one embodiment, the temperature of the fluid flowing in and out through the first inlet and outlet and the temperature of the fluid flowing in and out through the second inlet and outlet may be different from each other.

[0018] According to another embodiment of the present invention for realizing the object of the present invention, a laminated heat exchanger includes a first flow path substrate and a first inlet / outlet substrate. The first flow path substrate has first and second inclined surfaces extending in different directions at each of its ends, and a plurality of first flow paths are formed therein. The first inlet / outlet substrate includes a first inlet / outlet substrate laminated on the first flow path substrate, and has first and second branching surfaces extending and overlapping with the first and second inclined surfaces, respectively, at each of its ends, and a plurality of first inlet / outlet passages are formed therein. In this case, each of the first flow paths extends through the first flow path substrate, and each of the first inlet / outlet passages partially overlaps each of the first flow paths, so that fluid flowing in through the first inlet / outlet passages is provided to the first flow paths.

[0019] In one embodiment, each of the first flow paths may include a first short flow path extending in a first direction along a flat portion of the first flow path substrate, and a first extension flow path extending along the flat portion of the first flow path substrate and the first inclined surface, and each of the first inlet and outlet passages may include a first through hole formed to penetrate the first inlet and outlet passage substrate and aligned with an end of the first short flow path, and a first inlet passage formed along the first inclined surface and partially overlapping with the first extension flow path.

[0020] In one embodiment, the first shortened paths and the first extended paths are alternately formed along a second direction perpendicular to the first direction, and the first shortened paths and the first extended paths can extend through the first path substrate.

[0021] In one embodiment, the first inflow path may be formed as a single flow path with a predetermined area on the first inclined surface.

[0022] In one embodiment, the area of ​​the first inlet may be formed to partially overlap with the first extension channel in the length direction of the first extension channel and to overlap with the outermost first extension channels in the width direction of the first extension channel.

[0023] In one embodiment, the second flow path substrate is laminated on the first input / output substrate, each of the edges at both ends branching into first and second inclined planes extending in different directions, and a plurality of second flow paths are formed therein, and a second input / output substrate is laminated on the second flow path substrate, each of the edges at both ends branching into first and second branch planes extending and overlapping the first and second inclined planes of the second flow path substrate, respectively, and a plurality of second flow paths are formed therein, each of the second flow paths extending through the second flow path substrate, each of the second flow paths partially overlapping each of the second flow paths, so that fluid flowing through the second flow paths can be provided to the second flow paths.

[0024] In one embodiment, each of the second channels may include a second short channel extending in the first direction along the flat portion of the second channel substrate, and a second extended channel extending along the flat portion of the second channel substrate and the second inclined surface. Each of the second inlet and outlet channels may include a second through hole formed to penetrate the second inlet and outlet channel substrate and aligned with an end of the second short channel, and a second inlet channel extending along the second inclined surface and partially overlapping the second extended channel.

[0025] In one embodiment, the second inflow path may be formed as a single flow path with a predetermined area on the second slope.

[0026] In one embodiment, the first through hole is open to the second extension path in the stacking direction, so that fluid introduced through the second inlet path can flow into the second extension path or flow into the first shortened path through the second extension path and the first through hole.

[0027] In one embodiment, the second through hole is open to the first extension path in the stacking direction, so that fluid introduced through the first inlet path can flow into the first extension path or flow into the second shortened path through the first extension path and the second through hole.

[0028] In one embodiment, in the first flow path substrate, the first input / output substrate, the second flow path substrate, and the second input / output substrate that are stacked in the vertical direction, different types of fluids can pass through the flow paths that are adjacent to each other in the left-right direction and the flow paths that are adjacent to each other in the vertical direction.

[0029] According to embodiments of the present invention, in a laminated heat exchanger, by manufacturing the laminated structure of substrates so that the flow paths are connected to each other in the vertical direction, a cooling flow path, a heating flow path, and further a composite flow path of a working fluid can be formed.

[0030] In particular, by forming the inlets and outlets of the cooling fluid, heating fluid or working fluid and the flow paths of the fluids on different substrates, the positions of the inlets and outlets and the shapes of the paths can be configured in various ways, and the inlets and outlets of the fluids that must flow separately can be effectively distinguished, making it easy to configure a composite path.

[0031] Accordingly, through the configuration of the above-mentioned composite flow path, the limitation that only one cooling fluid or heating fluid can flow on one substrate can be improved, the performance of heat exchange can be further improved, and the internal pressure performance can be maintained excellently.

[0032] This can be implemented by forming a channel with a penetrating structure through a commercial cutting processing process such as laser processing or waterjet processing on a substrate, thereby solving the problem of having to complexly control etching conditions in forming a channel through a conventional etching process, and thus enabling the formation of a more easy and complex channel through a simple cutting processing process.

[0033] Furthermore, by optimally designing the through holes and inlet / outlet passages in a state where branched and extended substrates are laminated, the cooling fluid and heating fluid are supplied only through a single inlet passage, so that the cooling fluid and heating fluid can be alternately supplied on a single substrate, thereby further improving the heat exchange performance.

[0034] FIG. 1 is an exploded perspective view illustrating a layered heat exchanger according to one embodiment of the present invention.

[0035] Fig. 2a is a cross-sectional view taken along line II' of Fig. 1, and Fig. 2b is a cross-sectional view taken along line II-II' of Fig. 1.

[0036] Fig. 3 is a perspective view illustrating the laminated heat exchanger of Fig. 1.

[0037] Fig. 4 is an exploded perspective view illustrating a layered heat exchanger according to another embodiment of the present invention.

[0038] Fig. 5a is a cross-sectional view taken along line III-III' of Fig. 4, Fig. 5b is a cross-sectional view taken along line IV-IV' of Fig. 4, and Fig. 5c is a cross-sectional view taken along line VV' of Fig. 4.

[0039] Figure 6 is an exploded perspective view illustrating a layered heat exchanger according to another embodiment of the present invention.

[0040] Fig. 7a is a cross-sectional view taken along line VI-VI' of Fig. 6, and Fig. 7b is a cross-sectional view taken along line VII-VII' of Fig. 6.

[0041] <Explanation of symbols>

[0042] 100, 200, 300: Stacked heat exchanger

[0043] 110, 210, 310: 1st Euro board 120, 220, 320: 1st input / output board

[0044] 130, 230, 330: 2nd Euro board 140, 240, 340: 2nd input / output board

[0045] 115, 217, 317: 1st Euro 135, 236, 337: 2nd Euro

[0046] 125, 227, 327: 1st entrance / exit 126, 229, 329: 1st inlet

[0047] 127: First outlet 228, 328: First through hole

[0048] 145, 247, 347: Second entrance / exit 146, 249, 349: Second inflow

[0049] 147: Second outlet 248, 348: Second through hole

[0050] 213, 233, 313, 333: First slope

[0051] 214, 234, 314, 334: Second slope

[0052] 223, 243, 323, 343: 1st quarter

[0053] 224, 244, 324, 344: 2nd branch

[0054] 111, 121, 131, 141: First corner

[0055] 112, 122, 132, 142, 212, 222, 232, 242, 312, 322, 332, 342: Second corner

[0056] 113, 123, 133, 143, 215, 225, 235, 245, 315, 325, 335, 345: Third corner

[0057] 114, 124, 134, 144, 216, 226, 236, 246, 316, 326, 336, 346: 4th corner

[0058] The present invention is susceptible to various modifications and takes various forms, and thus embodiments are described in detail herein. However, this is not intended to limit the present invention to a specific disclosed form, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention. Similar reference numerals have been used to designate similar components throughout the description of each drawing. While terms such as "first," "second," etc. may be used to describe various components, these components should not be limited by these terms.

[0059] The above terms are used solely to distinguish one component from another. The terms used in this application are used solely to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0060] In this application, it should be understood that terms such as “comprise” or “consist of” are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0061] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0062] Hereinafter, with reference to the attached drawings, a preferred embodiment of the present invention will be described in more detail.

[0063] Fig. 1 is an exploded perspective view illustrating a layered heat exchanger according to one embodiment of the present invention. Fig. 2a is a cross-sectional view taken along line II' of Fig. 1, and Fig. 2b is a cross-sectional view taken along line II-II' of Fig. 1. Fig. 3 is a perspective view illustrating the layered heat exchanger of Fig. 1.

[0064] Referring to FIGS. 1 to 3, the laminated heat exchanger (100, hereinafter referred to as a heat exchanger) according to the present embodiment includes a first flow path substrate (110), a first input / output path substrate (120), a second flow path substrate (130), and a second input / output path substrate (140).

[0065] In the case of the above heat exchanger (100), as shown in FIG. 3, it may have an overall square block shape, and may have a structure in which the first euro substrate (110) to the second input / output substrate (140) are sequentially stacked.

[0066] However, for the sake of convenience of explanation, a structure in which four substrates of the first input / output substrate (110) to the second input / output substrate (140) are laminated is illustrated through FIG. 3. However, the second input / output substrate (140) may be additionally laminated on the lower surface of the first input / output substrate (110), and the first input / output substrate (110) may be additionally laminated on the upper surface of the second input / output substrate (140). In addition, additional substrates may be laminated in the order of the first input / output substrate (110), the first input / output substrate (120), the second input / output substrate (130), and the second input / output substrate (140). To this end, FIGS. 1 and 2 illustrate that the first input / output substrate (110) and the first input / output substrate (120) are additionally positioned on the upper surface of the second input / output substrate (140).

[0067] That is, through Fig. 3, the most basic four-layered structure of the heat exchanger (100) is only exemplified, and the four-layered structures can be continuously layered in the required number in the upper direction as well as the lower direction to form the heat exchanger (100).

[0068] Furthermore, it is clear that the formation of the flow path by the four laminated structures described below is also applied equally to additional laminated structures.

[0069] The above first euro substrate (110) has a square plate shape, and as shown, may have a rectangular plate shape in which the length in the first direction (X) is longer than the length in the second direction (Y) perpendicular to the first direction.

[0070] At this time, the thickness of the first euro substrate (110) is sufficient so that a penetrating shape of the euro can be formed through a conventional cutting processing process such as laser processing, waterjet processing, etc., and the thickness is not limited.

[0071] The above first euro substrate (110) includes a plurality of first euros (115) extending in the first direction (X).

[0072] At this time, the first flow paths (115) are flow paths that extend in a straight line in the first direction (X), and a plurality of flow paths are formed parallel to each other in the second direction (Y). Accordingly, a plurality of flow paths that extend in the first direction (X) are formed parallel to each other on the first flow path substrate (110).

[0073] Meanwhile, each of the first flow paths (115) extends between the first and second corners (111, 112) facing each other in the first direction (X) of the first flow path substrate (110), and is not structured to open by penetrating the first and second corners (111, 112). That is, the first flow paths (115) are formed only on the inner side of the first and second corners (111, 112), and thus, a predetermined gap is formed between the two ends of the first flow path (115) from the first and second corners (111, 112).

[0074] The above first euros (115) extend parallel to each other along the extension direction of the third and fourth edges (113, 114) which are perpendicular to the first and second edges (111, 112).

[0075] The first flow path (115) may be formed, for example, through a conventional cutting process such as laser processing, waterjet processing, etc. That is, by forming the first flow paths (115) through the first flow path substrate (110) using a laser processing machine or the like, the first flow paths (115) have an open flow path structure with an open shape.

[0076] At this time, in addition to laser processing, various substrate penetration or opening processing methods can be applied, and since such direct processing process is applied, the first filaments (115) can be formed in a relatively easy and precise shape.

[0077] Meanwhile, the first euro substrate (110) is not limited to a material that can form a euro using a conventional cutting processing process such as laser processing, waterjet processing, etc.

[0078] The first input / output substrate (120) is laminated on the first flow substrate (110) and is ultimately bonded so as to be in close contact with the upper surface of the first flow substrate (110). At this time, the first input / output substrate (120) and the first flow substrate (110) can be subjected to various bonding processes, such as diffusion bonding, and since bonding is sufficient in the end, the specific process is not limited.

[0079] The first input / output board (120) has a rectangular plate shape of the same size as the first euro board (110), and a plurality of first input / output boards (125) are formed.

[0080] At this time, the first inlet / outlet passages (125) include a plurality of first inlet passages (126) formed on the first edge (121) of the first inlet / outlet passage substrate (120), and a plurality of first outlet passages (127) formed on the second edge (122) of the first inlet / outlet passage substrate (120).

[0081] In this case, the first edge (121) and the second edge (122) are edges that face each other along the first direction (X), and correspond to edges located above the first and second edges (111, 112) of the first euro substrate (110) described above, respectively.

[0082] At this time, the first inflow paths (126) and the first outflow paths (127) can be extended to a predetermined length, and each can be extended parallel to the extension direction of the third and fourth edges (123, 124).

[0083] As illustrated, the first inflow passages (126) are formed on the first edge (121) and have a structure that opens to the outside through the first edge (121). Similarly, the first outflow passages (127) are also formed on the second edge (122) and have a structure that opens to the outside through the second edge (122).

[0084] That is, the first inflow paths (126) and the first outflow paths (127) are formed through a processing process such as laser processing, similar to the first flow paths (115) described above, and accordingly, the first corner (121) and the second corner (122) can be formed by the first inflow paths (126) and the first outflow paths (127) to have a structure that is repeatedly protruded or recessed toward the outer surface, as illustrated.

[0085] Meanwhile, each of the first inflow paths (126) is formed to be aligned with one end of the first flow paths (115), and each of the first outflow paths (127) is formed to be aligned with the other end of the first flow paths (115). As described above, the first flow paths (115) extend in the first direction (X) along which the third and fourth edges (113, 114, 123, 124) extend, and similarly, the first inflow paths (126) and the first outflow paths (127) also extend in the first direction (X), so that when they overlap each other, they are aligned to extend in the first direction (X).

[0086] That is, the first inflow paths (126) are formed to a predetermined length, and the opening structure in which the first inflow paths (126) are formed is aligned with the opening structure at one end of the first flow paths (115), that is, at the end positioned close to the first corner (111), in the vertical direction.

[0087] Likewise, the first outlets (127) are also formed to a predetermined length, and the opening structure in which the first outlets (127) are formed is aligned with the opening structure at the end positioned close to the other end of the first flow paths (115), that is, the second edge (112), in a vertical direction.

[0088] Accordingly, on the first euro substrate (110) and the first input / output substrate (120) that are laminated to each other, each of the first inflow paths (126) is aligned with one end of the first euros (115) and is opened, and each of the first outflow paths (127) is aligned with the other end of the first euros (115) and is opened.

[0089] The above second euro substrate (130) also has a square plate shape, and the size of the second euro substrate (130) is the same as that of the first euro substrate (110) as well as the second euro substrate (120).

[0090] The second euro board (130) includes a plurality of second euros (135), each of which includes a first sub-euro (136), a second sub-euro (137), and a third sub-euro (138).

[0091] Each of the second flow paths (135) has, as illustrated, a structure in which an 'L' shape and an 'ㄱ' shape are continuous overall. That is, the first sub-flow path (136) extends in the second direction (Y) from a position adjacent to the third corner (133) of the second flow path substrate (130), the second sub-flow path (137) extends in the first direction (X) from the first sub-flow path (136), and the third sub-flow path (138) extends again in the second direction (Y) from the second sub-flow path (137) to a position adjacent to the fourth corner (134) of the second flow path substrate (130).

[0092] At this time, the third edge (133) and the fourth edge (134) correspond to edges that extend along the first direction (X) and face each other along the second direction (Y) in the third euro substrate (130). That is, in the heat exchanger (100) of the present embodiment, the laminated substrates all have first to fourth edges, and the first and second edges are edges that face each other at both ends along the first direction (X), and the third and fourth edges correspond to edges that face each other at both ends along the second direction (Y).

[0093] Accordingly, the third and fourth corners (133, 134) are corners aligned in the same direction as the third and fourth corners (113, 114) of the first euro substrate (110) described above, and correspond to corners arranged in a direction perpendicular to the arrangement direction of the first and second corners (111, 112).

[0094] That is, in the third flow path (130), the second flow path (135) is positioned so that both ends face the third and fourth corners (133, 134), but, as in the first flow path (115), both ends of the second flow path (135) are positioned so as to be spaced apart from the third and fourth corners (133, 134) by a predetermined distance. Accordingly, in the third flow path (130), the third and fourth corners (143, 144) are not formed to be open to the outside or to penetrate through. The second flow path (135) is formed in a form that penetrates only the inside of the third flow path (130), and has a structure that is not open to the outside through any of the corners.

[0095] The formation of the second euro (135) is formed by a processing process such as the laser processing described above, and is formed by penetrating the third euro substrate (130) and having a structure that opens the third euro substrate (130) in the vertical direction.

[0096] In addition, the third euro substrate (130) is bonded to the upper surface of the first input / output substrate (120), and the bonding process is not limited.

[0097] The second input / output circuit board (140) is laminated on the third euro board (130) and is finally bonded so as to be in close contact with the upper surface of the third euro board (130). At this time, the bonding process is also not limited.

[0098] The above second input / output circuit board (140) also has the same size and shape as each of the previously described circuit boards, and a plurality of second input / output circuit boards (145) are formed.

[0099] At this time, the second inlet / outlet passages (145) include a plurality of second inlet passages (146) formed on the third corner (143) of the second inlet / outlet passage substrate (140), and a plurality of second outlet passages (147) formed on the fourth corner (144) of the second inlet / outlet passage substrate (140).

[0100] In this case, the third corner (143) and the fourth corner (144) are corners that face each other along the second direction (Y), and correspond to corners located above the third and fourth corners (133, 134) of the second euro substrate (130) described above, respectively.

[0101] As illustrated, the second inflow paths (146) are formed on the third edge (143) and have a structure that opens to the outside through the third edge (143). However, the second inflow paths (146) are formed only in the area where the first sub-channels (131) are formed on the third edge (143). At this time, the second inflow paths (146) are formed in a direction parallel to the extension direction of the first edge (141).

[0102] In particular, each of the second inflow channels (146) is formed to be aligned with each of the first sub-channels (131) in the vertical direction. Thus, in the second flow board (130) and the second inflow / outflow board (140), each of the second inflow channels (146) and each of the first sub-channels (131) are aligned to be open to each other in the vertical direction in which they are stacked.

[0103] Likewise, the second outlets (147) are also formed on the fourth edge (144) and have a structure that opens to the outside through the fourth edge (144). However, the second outlets (147) are formed only in the area where the third sub-channels (133) are formed on the fourth edge (144). At this time, the second outlets (147) are formed in a direction parallel to the extension direction of the second edge (142).

[0104] In particular, each of the second outlets (147) is formed to be aligned with each of the third sub-channels (133) in the vertical direction. Thus, in the second outlet substrate (130) and the second input / output substrate (140), each of the second outlets (147) and each of the third sub-channels (133) are aligned to be open to each other in the vertical direction in which they are stacked.

[0105] Meanwhile, the second inflow paths (146) and the second outflow paths (147) are also formed through a processing process such as laser processing, and accordingly, a portion of the third corner (143) and the fourth corner (144) can be formed to have a structure that is repeatedly protruded or recessed toward the outer surface, as illustrated, by the second inflow paths (146) and the second outflow paths (147).

[0106] In addition, as described above, the first euro substrate (110) may be additionally laminated on top of the second input / output substrate (140), and a redundant description thereof will be omitted.

[0107] Meanwhile, referring to FIGS. 2 and 3, in the heat exchanger (100) having a structure in which substrates as described above are stacked vertically, the fluid (A) introduced through the first inlet passage (126) of the first inlet / outlet passage substrate (120) is provided through the first flow path (115) of the first flow path substrate (110). Thereafter, after passing through the first flow path (115), it flows out (A') to the outside through the first outlet passage (127) of the first inlet / outlet passage substrate (120).

[0108] In contrast, the fluid (B) introduced through the second inlet (146) of the second input / outlet substrate (140) is provided through the second flow path (135) of the second flow path substrate (130). Afterwards, after passing through the second flow path (135), it flows out (B') to the outside through the second outlet (147) of the second input / outlet substrate (140).

[0109] At this time, for example, assuming that fluids (A, A') are cooling fluids and fluids (B, B') are heating fluids, as shown in Fig. 2b, the cooling fluid and the heating fluid can be alternately supplied in the vertical direction on one heat exchanger (100). Through this, various complex flow paths can be formed, thereby increasing the contact area between the cooling fluid and the heating fluid, thereby improving the heat exchange performance.

[0110] Meanwhile, in the case of the present embodiment, the cooling fluid supply unit (not shown) for supplying cooling fluid and the heating fluid supply unit (not shown) for supplying heating fluid can be provided at different locations, for example, at locations that intersect each other in a vertical direction, so that space utilization and ease of processing can be improved in the layout design of the fluid supply unit. This means that the cooling fluid recovery unit (not shown) for recovering cooling fluid and the heating fluid recovery unit (not shown) for recovering heating fluid can also be provided at locations that intersect each other in a vertical direction, so that space utilization can be improved.

[0111] This is because the first inlet (126) through which cooling fluid is supplied and the second inlet (146) through which heating fluid is supplied are positioned perpendicular to each other on a plane, and similarly, the first outlet (122) through which cooling fluid is recovered and the second outlet (147) through which heating fluid is recovered are positioned perpendicular to each other on a plane.

[0112] Furthermore, in the present embodiment, the fluid passing through the first flow path (115) may flow in the opposite direction. That is, the fluid passing through the first flow paths flows so as to flow into the first outlet (122) and flow out into the first inlet (126), thereby allowing for various control of heat exchange performance.

[0113] Fig. 4 is an exploded perspective view illustrating a layered heat exchanger according to another embodiment of the present invention. Fig. 5a is a cross-sectional view taken along line III-III' of Fig. 4, Fig. 5b is a cross-sectional view taken along line IV-IV' of Fig. 4, and Fig. 5c is a cross-sectional view taken along line VV' of Fig. 4.

[0114] The heat exchanger (200) according to the present embodiment is substantially the same as the heat exchanger (100) described with reference to FIGS. 1 to 3, except for the structure in which the first edge of the laminated substrate structure branches into two inclined planes or two branching planes, the second edge branches into two inclined planes or two branching planes, and the flow path forming structure according to this. Therefore, overlapping descriptions are omitted.

[0115] Through FIGS. 4 to 5c, the structure in which the first corner branches is omitted, and only the structure in which the second corner branches is illustrated. In this case, the first corner also has a symmetrical structure, substantially the same as the branching structure of the second corner as illustrated, and for the convenience of explanation, the illustration of the first corner having a symmetrical structure is omitted.

[0116] Referring to FIGS. 4 to 5c, the heat exchanger (200) according to the present embodiment also includes a first flow board (210), a first input / output board (220), a second flow board (230), and a second input / output board (240) that are stacked vertically, and at this time, as in the heat exchanger (100) described above, this stacking structure can be continuously repeated.

[0117] The first euro substrate (210) has an overall square plate shape, but the second corner (212) of the end in the first direction (X) extends to branch into a pair of first and second inclined surfaces (213, 214). At this time, as described above, the first corner, which is the other end in the first direction (X) of the first euro substrate (210), also extends to branch into a pair of first and second inclined surfaces like the second corner (212).

[0118] That is, the first euro substrate (210) includes a flat plate portion (P) having a square plate shape, and first and second inclined surfaces (213, 214) that further extend in the first direction (X) from a branching region (S) formed at an end of the flat plate portion (P), and the first and second inclined surfaces (213, 214) may further extend in a positive 45 degree (+45˚) and negative 45 degree (-45˚) direction, respectively, with respect to the extension direction of the first direction (X). Of course, the angles at which the first and second inclined surfaces (213, 214) extend may vary. Accordingly, the second edge (212) side of the first euro substrate (210) may extend in an overall 'ㅅ' shape.

[0119] The first euro board (210) includes a plurality of first euros (217), and the first euros (217) include first extension euros (218) and first shortened euros (219). At this time, a plurality of the first extension euros (218) and the first shortened euros (219) are formed alternately.

[0120] Each of the first extension paths (218) extends in the first direction (X) on the flat portion (P), and further extends through the branching area (S) onto the second inclined surface (214). Accordingly, the first extension path (218) may extend horizontally and then, for example, extend so as to be inclined in one direction while being bent by a positive 45 degrees.

[0121] Of course, at this time, the first extension paths (218) may extend onto the first inclined surface (213), but in this case, since the arrangement of paths formed on other substrates described later is variable, for convenience of explanation, the first extension paths (218) are described as extending onto the second inclined surface (214) as an example. At this time, when the first extension paths (218) extend onto the first inclined surface (213), the first extension paths (218) may likewise extend so as to be inclined in one direction while being bent by, for example, a positive 45 degrees.

[0122] Furthermore, even if the first extension channels (218) are further extended onto the second inclined surface (214), the ends of the first extension channels (218) do not extend to the outside of the second inclined surface (214). That is, the end edges of the second inclined surface (214) are not opened to the outside, and the first extension channels (218) penetrate and extend only within the interior of the second inclined surface (214).

[0123] In contrast, each of the first shortened paths (219) extends only on the flat portion (P) in the first direction (X), and in the branching area (S), each of the first extended paths (218) extends only a certain length in the direction in which it extends, and does not extend to the second inclined surface (214) or the first inclined surface (213).

[0124] Accordingly, the only flow paths extending to the second inclined surface (214) are the first extension flow paths (218). In addition, the intervals between the first extension flow paths (218) extending to the second inclined surface (214) are relatively widely spaced.

[0125] The first flow paths (217) are formed by opening so as to penetrate the first flow path substrate (210) as described above. In this case, the first flow paths (217) extend toward the first corner side as described above, although not shown, and the branching structure at the first corner has a structure that is symmetrical to that at the second corner (212) side described above. In this case, the description of this symmetrical structure is omitted as it is redundant.

[0126] In this case, as described above, the other end of the first ducts (217), that is, the end of the first extension ducts (218) formed on the second inclined surface (214), does not open the edge of the second inclined surface (214) and is positioned so as to be spaced apart from the edge of the second inclined surface (214) by a predetermined distance.

[0127] The first input / output substrate (220) also has an overall square plate shape, but the second corner (222) of the end in the first direction (X) extends to branch into a pair of first and second branching surfaces (223, 224). At this time, the first input / output substrate (220) is a substrate that is laminated and bonded on the first flow substrate (210), and the branching shape and square plate shape of the first input / output substrate (220) are substantially the same as those of the first flow substrate (210).

[0128] The first input / output circuit board (220) includes a plurality of first input / output channels (227), and the first input / output channels (227) include first through holes (228) and first inlet channels (229).

[0129] The first through-holes (228) are formed in plurality at regular intervals on the branching area (S) where the branching surfaces (223, 224) begin to extend in the first input / output path substrate (220). At this time, the first through-holes (228) are aligned with the ends of the first short-axis paths (219) on the first path substrate (210) that are stacked vertically. That is, the ends of the first short-axis paths (219) that extend to the branching area (S) are aligned with the first through-holes (228), and accordingly, the first through-holes (228) and the first short-axis paths (219) are opened to each other.

[0130] As described above, the distance between the first through holes (228) should be the same as the distance between the first short-axis paths (219).

[0131] The first inflow paths (229) are formed in plurality on the second branch surface (224), and are formed in plurality in a direction parallel to the extension direction of the second branch surface (224). At this time, the ends of the first inflow paths (229) are formed up to the end corners of the second branch surface (224), and accordingly, the second branch surface (224) has a structure that is open to the outside.

[0132] In addition, the first inflow paths (229) overlap with the first extension paths (218) formed on the second inclined surface (214) in the vertical direction. At this time, the length of the first inflow paths (229) is formed to be smaller than the length of the second inclined surface (214) or the second branch surface (224), and thus, they can overlap only a portion of the length of the first extension paths (218).

[0133] That is, it is sufficient if the extension length of the first inflow paths (229) on the second branch surface (224) partially overlaps with the extension length of the first extension paths (218) on the second inclined surface (214), and the overlapping length is not limited.

[0134] In this case, as described above, the first corner side of the first input / output substrate (220) has a structure that is symmetrical to the second corner side (22).

[0135] As described above, since the first inflow paths (229) overlap with the first extension paths (218) in the vertical direction, the fluid flowing in through the first inflow paths (229) is provided to the first extension paths (218) from the second branch surface (224) in the direction of the second inclined surface (214).

[0136] Meanwhile, the first extension channels (218) are formed on the first flow path (210), and the fluid introduced through the first inflow channels (229) passes through the flat portion (P) of the first flow path (210) and ultimately flows out through an outflow channel formed symmetrically with the first inflow channels (229) at the first corner of the first flow path (210).

[0137] In addition, the second euro substrate (230) also has an overall square plate shape, but the second edge (232) of one end in the first direction (X) extends to branch into a pair of first and second inclined surfaces (233, 234).

[0138] At this time, the second euro substrate (230) is laminated and bonded on the first input / output substrate (220), and the structure and shape excluding the euro are substantially the same.

[0139] The second euro board (230) includes a plurality of second euros (237), and the second euros (237) include second extension euros (238) and second shortened euros (239). At this time, the second extension euros (238) and the second shortened euros (239) are formed alternately.

[0140] Each of the second extension paths (238) extends in the first direction (X) on the flat plate (P), and further extends through the branching area (S) onto the first inclined surface (233). That is, the second extension paths (238) extend further onto the first inclined surface (233) rather than in the direction of the second inclined surface (214) along which the first extension paths (218) extend. Accordingly, the second extension paths (238) may extend in a horizontal direction and then, for example, extend so as to be inclined in one direction while bending by negative 45 degrees.

[0141] At this time, the second extension path (238) extends only from the inside of the first inclined surface (233), and does not penetrate the edge of the first inclined surface (233) and is exposed to the outside.

[0142] In contrast, each of the second shortened paths (239) extends only on the flat portion (P) in the first direction (X), and in the branching area (S), each of the second extended paths (238) extends only a certain length in the extending direction, and does not extend to the second inclined surface (234) or the first inclined surface (233). Accordingly, the spacing between the second extended paths (238) formed on the first inclined surface (233) increases compared to the spacing between the second paths (237) on the flat portion (P).

[0143] The second filaments (237) are also opened to penetrate the second filament substrate (230). In this case, the second filaments (237), as described above, extend toward the first corner side, although not shown, and the branching structure at the first corner has a structure that is symmetrical to that at the second corner (232) side described above. In this case, the description of this symmetrical structure is omitted as it is redundant.

[0144] Meanwhile, as described above, the other end of the second ducts (237), that is, the end of the second extension ducts (238) formed on the first inclined surface (233), does not open the edge of the first inclined surface (233) and is positioned so as to be spaced apart from the edge of the first inclined surface (233) by a predetermined distance.

[0145] In addition, the first through holes (228) are aligned with the second extension paths (238) formed on the second path substrate (230) laminated on the upper surface of the first input / output path substrate (220).

[0146] That is, the spacing between the first through holes (228) must be formed to be the same as the spacing between the second extension paths (238). Thus, in the vertical direction, the second extension paths (238), the first through holes (228), and the first shortened paths (219) are opened and connected to each other.

[0147] The second input / output board (240) also has an overall square plate shape, but the second corner (242) of the end in the first direction (X) extends to branch into a pair of first and second branching surfaces (243, 244). At this time, the second input / output board (240) is a board that is laminated and bonded on the second flow board (230), and the branching shape and square plate shape of the second input / output board (240) are substantially the same as those of the second flow board (230).

[0148] The second input / output circuit board (240) includes a plurality of second input / output channels (247), and the second input / output channels (247) include second through holes (248) and second inlet channels (249).

[0149] The second through holes (248) are formed at regular intervals in plurality on the branching area (S) where the branching surfaces (243, 244) begin to extend in the second input / output path substrate (240). At this time, the second through holes (248) are aligned with the ends of the second short-axis paths (239) on the second path substrate (230) that are stacked vertically. That is, the ends of the second short-axis paths (239) that extend to the branching area (S) are aligned with the second through holes (248), and accordingly, the second through holes (248) and the second short-axis paths (239) are opened to each other.

[0150] The second inflow paths (249) are formed in plurality on the first branch surface (243), and are formed in plurality in a direction parallel to the extension direction of the first branch surface (243). At this time, the ends of the second inflow paths (249) are formed to extend to the end corners of the first branch surface (243), and accordingly, the first branch surface (243) has a structure in which the ends are open to the outside.

[0151] In addition, the second inflow paths (249) overlap with the second extension paths (238) formed on the first inclined surface (233) in the vertical direction. At this time, the length of the second inflow paths (249) is formed to be smaller than the length of the first inclined surface (233) or the first branch surface (243), and thus, they can overlap only a portion of the length of the second extension paths (238).

[0152] That is, it is sufficient if the extension length of the second inflow paths (249) on the first branch surface (243) partially overlaps with the extension length of the second extension paths (238) on the first inclined surface (233), and the overlapping length is not limited.

[0153] In addition, as described above, the first corner of the second input / output substrate (240) has a symmetrical structure with the second corner (242) and performs the same function.

[0154] As described above, since the second inflow paths (249) overlap with the second extension paths (238) in the vertical direction, the fluid flowing in through the second inflow paths (249) is provided to the second extension paths (238) from the first branch surface (243) in the direction of the first inclined surface (233).

[0155] Meanwhile, the second extension channels (238) are formed on the second flow path (230), and the fluid introduced through the second inflow channels (249) passes through the flat portion (P) of the second flow path (230) and ultimately flows out through an outflow channel formed symmetrically with the second inflow channels (249) at the first corner of the second flow path (230).

[0156] In addition, although not shown, the second through holes (248) are aligned with the first extension paths (218) formed on the first path substrate (210) laminated on the upper surface of the second input / output path substrate (240).

[0157] Meanwhile, as described above, the first through holes (228) and the first short-axis passages (219) are open to each other, and the second through holes (248) and the second short-axis passages (239) are open to each other.

[0158] At this time, the second input / output board (240) is laminated on the lower surface of the first input / output board (210), and the first input / output board (210) is laminated on the upper surface of the second input / output board (240), so that the second through holes (248) are opened on the lower surface with the second shortened paths (239) and on the upper surface with the first extended paths (218).

[0159] Likewise, the first through holes (228) are open to the first shortened paths (219) on the lower surface and open to the second extended paths (238) on the upper surface.

[0160] Thus, as illustrated in FIGS. 5a to 5c, the fluid introduced through the first inflow paths (229) can flow along the first extension path (218) and flow out through the outflow paths formed at the first corner of the first flow path plate (210), and at the same time, can flow through the second through hole (248) to the second shortened path (239), and the fluid that has flowed into the second shortened path (239) can merge with the first extension path at the first corner of the second flow path plate (230) and flow out through the outflow paths formed at the first corner.

[0161] In contrast, the fluid introduced through the second inflow paths (249) can flow along the second extension path (238) and flow out through the outflow paths formed at the first corner of the second flow path plate (230), and at the same time, can flow through the first through hole (228) to the first short flow path (219), and the fluid flowing into the first short flow path (219) can merge with the second extension path at the first corner of the first flow path plate (210) and flow out through the outflow paths formed at the first corner.

[0162] That is, by the flow of these complex fluids, as shown in Fig. 5c, not only can different types of fluids (i.e., cooling fluid and heating fluid) pass through adjacent channels in the left-right direction on a single substrate, but also different types of fluids can pass through adjacent channels in the vertical direction on substrates that are stacked vertically, forming a complex flow path.

[0163] In particular, since the positions toward which the branching surfaces or the inclined surfaces are directed are different, the positions of the first inflow path (229) and the second inflow path (249) are positioned differently. Accordingly, a cooling fluid providing unit (not shown) that provides, for example, a cooling fluid to the first inflow path (229) and a heating fluid providing unit (not shown) that provides, for example, a heating fluid to the second inflow path (249) can be positioned in different directions, thereby enabling an improvement in the ease of overall layout design and space utilization.

[0164] In particular, the heat exchanger (200) according to the present embodiment includes a first flow path substrate (210), a first inlet / outlet substrate (220), a second flow path substrate (230), and a second inlet / outlet substrate (240) that are stacked vertically. At this time, even if this stacking structure is continuously repeated, the first inlet paths (229) and the second inlet paths (249) are only opened to each other along the stacking direction, and are positioned at fixed points on a plane perpendicular to the stacking direction. Therefore, it is possible to improve the ease of overall layout design and space utilization of the fluid providing unit (not shown) that provides fluid to the first inlet path (229) and the fluid providing unit (not shown) that provides fluid to the second inlet path (249).

[0165] Meanwhile, in the present embodiment, the fluid passing through the first extension passage (218) and the second shortened passage (239) can flow in opposite directions. That is, the fluid passing through the first extension passage (218) and the second shortened passage (239) can be introduced into the outlets formed at the first corner and discharged through the first inlet passage (229), thereby controlling the heat exchange performance.

[0166] Fig. 6 is an exploded perspective view illustrating a layered heat exchanger according to another embodiment of the present invention. Fig. 7a is a cross-sectional view taken along line VI-VI' of Fig. 6, and Fig. 7b is a cross-sectional view taken along line VII-VII' of Fig. 6.

[0167] In the case of the heat exchanger (300) according to the present embodiment, except for the structure of the first and second inlet passages (329, 349), it is the same as the heat exchanger (200) described with reference to FIGS. 4 to 5c, and therefore, redundant description is omitted.

[0168] Referring to FIGS. 6 to 7b, the heat exchanger (300) according to the present embodiment also includes a first flow board (310), a first inlet / outlet board (320), a second flow board (330), and a second inlet / outlet board (340). The planar extension shapes of each board as well as the branching shapes of the second corners are all the same, and the branching shapes of the first corners, which are symmetrical to the branching shapes of the second corners, have a symmetrical structure, and the drawing is generated as in the heat exchanger (200) described above.

[0169] In addition, the first flow path (317) formed on the first flow path substrate (310) and the second flow path (337) formed on the second flow path substrate (330) also have the same structure as that of the heat exchanger (200) described above.

[0170] However, the first inlet (329) formed on the first inlet / outlet substrate (320) does not have a structure in which multiple flow paths extend in parallel, but has a structure in which a single integrated opening is formed entirely on the second branch surface (324). Accordingly, the second branch surface (324) has a structure in which the end side is open, and as illustrated, may have a frame structure in the shape of the letter 'ㄷ' overall.

[0171] At this time, the area in which the first inflow path (329) is formed can be formed by considering the area in which the first extension paths (318) are formed, which ultimately overlap each other in the vertical direction. That is, the length in which the first inflow path (329) is formed on the second branch surface (324) can be determined by considering the length in which the first extension path (318) is formed on the second inclined surface (314). Similarly, when the first extension paths (318) are formed to be spaced apart from each other on the second inclined surface (314), the width in which the first inflow path (329) is formed on the second branch surface (324) can be determined by considering the gap between the first extension paths (318) located at the outermost sides.

[0172] For example, since it is sufficient for the first inlet passage (329) to overlap with the first extension passage (318) in the longitudinal direction by a certain length, it is sufficient for the first extension passage (318) to be formed to have a length that overlaps with a length that extends on the second inclined surface (314).

[0173] However, since the first inflow path (329) must overlap with all of the first extension paths (318), it must have a width that overlaps with the outermost first extension paths (318) formed on both sides on the second inclined surface (314). Accordingly, the width of the first inflow path (329) must have a width that overlaps with all of the first extension paths (318) formed on the outermost sides among the first extension paths (318).

[0174] In addition, the second inlet (349) formed on the second inlet / outlet substrate (340) also has a structure in which a single integrated opening is formed entirely on the first branch surface (343). Accordingly, the first branch surface (343) also has a structure in which the end side is open, and as illustrated, may have a frame structure in the shape of the letter 'ㄷ' overall.

[0175] This 'ㄷ' shaped frame structure is formed symmetrically on the first corner side, as described above, although not shown.

[0176] Furthermore, the area where the second inflow path (349) is formed must also take into account the area where the second extension path (338) is formed, which overlaps in the vertical direction, as in the area where the first inflow path (329) is formed.

[0177] Accordingly, it is sufficient for the second inflow path (349) to overlap with the second extension path (338) in the longitudinal direction by a certain length, so it is sufficient for the second extension path (338) to be formed to have a length that overlaps with a length that extends on the first inclined surface (343).

[0178] However, since the second inflow path (349) must overlap with all of the second extension paths (338), it must have a width that overlaps with the outermost second extension paths (338) formed on both sides on the first inclined surface (343). Accordingly, the width of the second inflow path (349) must have a width that can overlap with all of the second extension paths (338) formed at the outermost side among the second extension paths (338). In addition, the structure and shape of the paths or through holes, the description of which is omitted, are the same as in the heat exchanger (200) described above.

[0179] Meanwhile, in the heat exchanger (300) according to this embodiment, the complex flow of the fluid is substantially the same as in the heat exchanger (200) described above.

[0180] That is, with additional reference to FIGS. 7a and 7b, the fluid introduced through the first inlet passage (329) flows along the first extension passage (318), and can ultimately flow outward through an outlet passage formed symmetrically with the first inlet passage (329) at the first corner of the first flow path plate (310), and at the same time, can flow into the second shortened passage (339) through the second through hole (348), and the fluid that has flowed into the second shortened passage (339) in this way can flow outward through an outlet passage formed at the first corner of the second flow path plate (330).

[0181] In contrast, the fluid introduced through the second inlet passage (349) can flow along the second extension passage (338) and flow out through the outlet passage formed at the first corner of the second flow path (330), and at the same time, can flow through the first through hole (328) to the first short passage (319), and the fluid that has flowed into the first short passage (319) can flow out through the outlet passage formed at the first corner of the first flow path (310).

[0182] That is, by the flow of these complex fluids, as described in Fig. 5c, not only can different types of fluids (i.e., cooling fluid and heating fluid) pass through adjacent channels in the left-right direction on a single substrate, but also different types of fluids can pass through adjacent channels in the vertical direction on substrates that are stacked vertically, forming a complex flow path.

[0183] In addition, even in the present embodiment, since the positions toward which the branching surfaces or the inclined surfaces face are different, the positions of the first inflow path (329) and the second inflow path (349) are positioned differently. Accordingly, a cooling fluid providing unit (not shown) that provides, for example, a cooling fluid to the first inflow path (329) and a heating fluid providing unit (not shown) that provides, for example, a heating fluid to the second inflow path (349) can be positioned in different directions, thereby enabling an improvement in the ease of overall layout design and space utilization.

[0184] In addition, in the case of the fluid flowing through the first inlet (329) and the second inlet (349), the cross-sectional area of ​​the flow is expanded, so that the advantage of reducing the pressure drop occurring inside the inlet can be obtained.

[0185] According to the embodiments of the present invention as described above, in a laminated heat exchanger, by manufacturing the laminated structure of the substrates so that the flow paths are connected to each other in the vertical direction, a cooling flow path, a heating flow path, and further a composite flow path of the working fluid can be formed.

[0186] In particular, by forming the inlets and outlets of the cooling fluid, heating fluid or working fluid and the flow paths of the fluids on different substrates, the positions of the inlets and outlets and the shapes of the paths can be configured in various ways, and the inlets and outlets of the fluids that must flow separately can be effectively distinguished, making it easy to configure a composite path.

[0187] Accordingly, through the configuration of the above-mentioned composite flow path, the limitation that only one cooling fluid or heating fluid can flow on one substrate can be improved, the performance of heat exchange can be further improved, and the internal pressure performance can be maintained excellently.

[0188] This can be implemented by forming a channel with a penetrating structure through a commercial cutting processing process such as laser processing or waterjet processing on a substrate, thereby solving the problem of having to complexly control etching conditions in forming a channel through a conventional etching process, and thus enabling the formation of a more easy and complex channel through a simple cutting processing process.

[0189] Furthermore, by optimally designing the through holes and inlet / outlet passages in a state where branched and extended substrates are laminated, the cooling fluid and heating fluid are supplied only through a single inlet passage, so that the cooling fluid and heating fluid can be alternately supplied on a single substrate, thereby further improving the heat exchange performance.

[0190] Although the present invention has been described above with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

Claims

1. A first euro substrate on which a plurality of first euros extending in a first direction are formed; and A first input / output substrate is laminated on the first euro substrate and has a plurality of first input / output channels formed at each of the corners facing each other in the first direction, Each of the first euros extends through the first euro substrate, A layered heat exchanger, characterized in that each of the first inlet / outlet passages partially overlaps each of the first flow paths, so that fluid flowing in or out through the first inlet / outlet passages is provided to the first flow paths.

2. In paragraph 1, each of the first entry / exit paths, A first inlet extending a predetermined length through the first inlet / outlet substrate from the first corner of the first inlet / outlet substrate; and A laminated heat exchanger characterized in that it includes a first outlet extending a predetermined length through the first inlet / outlet substrate at a second edge facing the first edge.

3. In paragraph 1, A second flow path substrate laminated on the first input / output path substrate and having a plurality of second flow paths formed thereon that extend in a direction different from the extension direction of the first flow paths; and A laminated heat exchanger characterized by further comprising a second input / output substrate laminated on the second euro substrate and having a plurality of second input / output channels formed at each of corners facing each other in a second direction perpendicular to the first direction.

4. In paragraph 3, Each of the second euros extends through the second euro substrate, A layered heat exchanger, characterized in that each of the second inlet / outlet passages partially overlaps each of the second flow paths, so that fluid flowing in or out through the second inlet / outlet passages is provided to the second flow paths.

5. In paragraph 4, each of the second entry / exit paths, A second inlet extending a predetermined length through the second inlet / outlet substrate from the third corner of the second inlet / outlet substrate; and A laminated heat exchanger characterized in that it includes a second outlet extending a predetermined length through the second inlet / outlet substrate at a fourth corner facing the third corner.

6. In paragraph 5, each of the second euros, A first sub-channel partially overlapping with the second inflow channel and extending along the second direction; A second sub-channel extending from the first sub-channel and extending along the first direction; and A laminated heat exchanger characterized by including a third sub-channel extending from the second sub-channel, extending along the second direction, and partially overlapping the second outlet.

7. In paragraph 4, Each of the first euros, the second euros, the first entry / exit channels and the second entry / exit channels, A laminated heat exchanger characterized in that the first euro substrate, the second euro substrate, the first input / output substrate, and the second input / output substrate are formed by a cutting process.

8. In paragraph 4, Each of the first euros, the second euros, the first entry / exit channels and the second entry / exit channels, A laminated heat exchanger characterized in that a plurality of heat exchangers are extended in parallel with the same spacing distance from each other.

9. In paragraph 4, A layered heat exchanger characterized in that the temperatures of the fluids flowing in and out through the first inlet and outlet passages and the temperatures of the fluids flowing in and out through the second inlet and outlet passages are different from each other.

10. A first euro substrate, each of the corners at both ends of which are branched into first and second inclined surfaces extending in different directions, and a plurality of first euros are formed; and A first input / output substrate is laminated on the first euro substrate, each of the corners of both ends is branched into first and second branching surfaces that overlap and extend with the first and second inclined surfaces, respectively, and a plurality of first input / output paths are formed. Each of the first euros extends through the first euro substrate, A layered heat exchanger, characterized in that each of the first inlet / outlet passages partially overlaps each of the first flow paths, so that fluid flowing through the first inlet / outlet passages is provided to the first flow paths.

11. In paragraph 10, Each of the above first euros, A first short path extending in a first direction along the flat portion of the first euro substrate; and It includes a flat portion of the first euro substrate and a first extension path extending along the first inclined surface, Each of the above first entry and exit routes, A first through hole aligned with the end of the first short path and formed to penetrate the first inlet / outlet substrate; and A laminated heat exchanger characterized by including a first inlet path formed along the first inclined surface and partially overlapping with the first extension path.

12. In paragraph 11, The first shortened paths and the first extended paths are alternately formed along a second direction perpendicular to the first direction, A laminated heat exchanger characterized in that the first shortened passages and the first extended passages extend through the first passage substrate.

13. In paragraph 11, the first inflow path is A laminated heat exchanger characterized in that a single flow path is formed with a predetermined area on the first inclined surface.

14. In paragraph 13, the area of ​​the first inflow path is In the longitudinal direction of the first extension path, it partially overlaps with the first extension path, A laminated heat exchanger characterized in that the first extension path is formed to overlap with the outermost first extension paths in the width direction.

15. In paragraph 11, A second flow path substrate laminated on the first input / output path substrate, each of the corners at both ends branching into first and second inclined surfaces extending in different directions, and forming a plurality of second flow paths; and A second input / output substrate is further included, which is laminated on the second euro substrate, and each of the corners at both ends is branched into first and second branching surfaces that overlap and extend with the first and second inclined surfaces of the second euro substrate, respectively, and a plurality of second input / output paths are formed. Each of the second euros extends through the second euro substrate, A layered heat exchanger, characterized in that each of the second inlet / outlet passages partially overlaps each of the second flow paths, so that fluid flowing through the second inlet / outlet passages is supplied to the second flow paths.

16. In paragraph 15, Each of the above second euros, A second short path extending in the first direction along the flat portion of the second euro substrate; and It includes a flat portion of the second euro substrate and a second extension path extending along the second inclined surface, Each of the above second entrances and exits, A second through hole aligned with the end of the second short path and formed to penetrate the second inlet / outlet substrate; and A layered heat exchanger characterized by including a second inlet passage extending along the second inclined surface and partially overlapping the second extension passage.

17. In paragraph 16, the second inflow path is A laminated heat exchanger characterized in that a single flow path is formed with a predetermined area on the second inclined surface.

18. In paragraph 16, The above first through hole is open to each other in the stacking direction with the above second extension path, A layered heat exchanger characterized in that the fluid introduced through the second inlet flows into the second extension passage or flows through the second extension passage and the first through hole into the first shortened passage.

19. In paragraph 16, The above second through hole is open to each other in the stacking direction with the above first extension path, A layered heat exchanger characterized in that the fluid introduced through the first inlet passage flows into the first extension passage or flows through the first extension passage and the second through hole into the second shortened passage.

20. In paragraph 15, In the first euro substrate, the first input / output substrate, the second euro substrate, and the second input / output substrate that are stacked in the vertical direction, A layered heat exchanger characterized in that different types of fluids pass through channels adjacent to each other in the left-right direction and channels adjacent to each other in the vertical direction.

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