US20190024986A1 - Stacked plate heat exchanger - Google Patents

Stacked plate heat exchanger Download PDF

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Publication number
US20190024986A1
US20190024986A1 US16/071,025 US201716071025A US2019024986A1 US 20190024986 A1 US20190024986 A1 US 20190024986A1 US 201716071025 A US201716071025 A US 201716071025A US 2019024986 A1 US2019024986 A1 US 2019024986A1
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United States
Prior art keywords
plate
tab
stacked
cutout
heat exchanger
Prior art date
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Abandoned
Application number
US16/071,025
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English (en)
Inventor
Takuya BUNGO
Atsushi Okubo
Taiji Sakai
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T Rad Co Ltd
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T Rad Co Ltd
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Filing date
Publication date
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Assigned to T.RAD CO., LTD. reassignment T.RAD CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUNGO, Takuya, OKUBO, ATSUSHI, SAKAI, TAIJI
Publication of US20190024986A1 publication Critical patent/US20190024986A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20254—Cold plates transferring heat from heat source to coolant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029—Heat sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0075—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F28F2275/045—Fastening; Joining by brazing with particular processing steps, e.g. by allowing displacement of parts during brazing or by using a reservoir for storing brazing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating

Definitions

  • the present invention relates to a stacked plate heat exchanger applicable for a cooler and the like to cool electronic devices such as an inverter.
  • a stacked plate heat exchanger (solid cooler) applicable for a cooler for electronic devices such as an inverter and the like
  • a cup plate structure in which inner plates having a flow path are stacked and surrounded with a top plate in a flat plate shape and a bottom plate in a cup shape, as well as a completely stacked structure in which they are sandwiched with a top plate and a bottom plate both having a flat plate shape.
  • stacked plate heat exchangers With respect to these stacked plate heat exchangers, generally the whole of a heat exchanger is integrally brazed and manufactured, but, in brazing, inner plates, a cup plate and the like are necessarily stacked and temporarily fixed in a positioned state.
  • methods of temporary fixing a method of welding an outer peripheral part of a stacked body, and a method of using a special fixing jig are known.
  • welding of an outer peripheral part causes such problems that the manufacturing process becomes considerably complex and welding marks remain also in a finished product, and in the case of using a special fixing jig, there is such a problem as increase in cost by that.
  • Japanese Patent No. 3026315 a manufacturing method of a stacked plate heat exchanger is disclosed.
  • a plurality of plates, in which a hole other than a coolant flow path is separately formed, are stacked and a pipe for temporary fixing, for example, a pipe such as a grooved spring pin is inserted into the hole to temporarily fix the respective plates to one another, and brazing or the like is performed in the state.
  • the present invention provides a novel stacked plate heat exchanger that solves these problems, configured as follows.
  • a first invention of the present invention is a stacked plate heat exchanger including a top plate, a bottom plate and a plurality of inner plates, configured such that an upwardly bent tab part is formed on at least one of the plates, a cutout part is formed in plates other than the plate on which the tab part is formed, and each plate is stacked and fixed to one another with the tab part and the cutout part in a fitted state.
  • a second invention of the present invention is configured, in the first invention, such that the tab part is formed in a rectangular shape with a pair of side surfaces and an end part, the cutout part is formed in a rectangular shape with a pair of side surfaces and a bottom surface, both side surfaces of the tab part abut on both side surfaces of the cutout part, respectively, and a surface of the tab part in the bent direction is separated from the bottom surface of the cutout part.
  • a third invention of the present invention is configured, in the second invention, such that the cutout part is formed in a periphery edge part of the plate.
  • a fourth invention of the present invention is configured, in the third invention, such that the plate on which the tab part is formed is arranged at an intermediate layer excluding the uppermost layer and the lowermost layer in a plurality of the inner plates.
  • a fifth invention of the present invention is configured, in the third invention, such that the tab part is formed on at least one of the top plate and the bottom plate.
  • the first invention is configured such that an upwardly bent tab part is formed on at least one of plates, a cutout part is formed in plates other than the plate on which the tab part is formed, and the plates are stacked and fixed to one another with the tab part and the cutout part in a fitted state.
  • the stacked plate heat exchanger configured as described above has a simple structure that suppresses complexity of structure and increase in cost. In the manufacturing process thereof, the use of expensive parts is unnecessary, and it becomes possible to temporarily fix plates simply with low cost by a method in which the increase in the number of parts is suppressed.
  • the second invention is configured such that the tab part has a rectangular shape with a pair of side surfaces and an end part, the cutout part has a rectangular shape with a pair of side surfaces and a bottom surface, both side surfaces of the tab part abut on both side surfaces of the cutout part, respectively, and the surface of the tab part in the bent direction is separated from the bottom surface of the cutout part.
  • the third invention is configured such that the cutout part is formed in a periphery edge part of the plate.
  • the fourth invention is configured such that a plate on which the tab part has been formed is arranged to an intermediate layer excluding the uppermost layer and lowermost layer in a plurality of the inner plates.
  • the fifth invention is configured such that the tab part is formed on at least one of the top plate and bottom plate.
  • FIG. 1 illustrates an exploded perspective view of respective members in temporary fixing of a stacked plate heat exchanger of the present invention according to a first embodiment.
  • FIG. 2 illustrates a perspective view showing a state where the stacked plate heat exchanger of FIG. 1 is temporarily fixed.
  • FIG. 3 illustrates an exploded perspective view of respective members in temporary fixing of the stacked plate heat exchanger of the present invention according to a second embodiment.
  • FIG. 4 illustrates a perspective view showing a state where the stacked plate heat exchanger of FIG. 3 is temporarily fixed.
  • FIG. 5 illustrates a perspective view showing a tab part and a cutout part formed on/in a periphery edge part of an inner plate in the stacked plate heat exchanger shown in FIG. 3 .
  • FIG. 6 illustrates a perspective view showing a fitting process of the tab part and cutout part shown in a VI part in FIG. 5 .
  • FIG. 7 illustrates (A) an exploded perspective view of respective inner plates in temporary fixing, and (B) a perspective view of inner plates after the temporary fixing, in a third embodiment of the stacked plate heat exchanger of the present invention.
  • FIG. 8 illustrates (A) an exploded perspective view of respective inner plates in temporary fixing, and (B) an enlarged perspective view showing the B part in (A), in a fourth embodiment of the stacked plate heat exchanger of the present invention.
  • FIG. 9 illustrates (A) an exploded perspective view of respective inner plates, (B) an enlarged perspective view showing the B part in (A), and (C) a partially enlarged cross-sectional view seen along the C-C arrow in (B), in temporary fixing in a fifth embodiment of the stacked plate heat exchanger of the present invention.
  • FIG. 1 illustrates a first embodiment of a stacked plate heat exchanger, and shows respective members when temporary fixing is performed as an exploded perspective view.
  • a heat exchanger 1 has a completely stacked structure, and includes a top plate 2 , a bottom plate 3 and a plurality of inner plates 4 to be a heat exchange part.
  • Material of respective plates is a metal such as aluminum (including alloys) and stainless steel, which may be a natural material or a cladding material in which a surface of mother material is covered with a brazing material.
  • a metal such as aluminum (including alloys) and stainless steel
  • it is used by applying a brazing material to a portion to be joined.
  • the planar shape of respective plates is formed as a rectangular shape (specifically rectangle).
  • the top plate 2 has a fluid inlet pipe 5 and a fluid outlet pipe 6 for cooling water or the like, and is provided with a bolt hole 7 at four corners thereof for fixing the heat exchanger 1 , to an object to be fixed, for example.
  • bolt holes 8 and 9 are provided so as to coincide with the bolt hole 7 .
  • a tab part 10 is respectively formed.
  • the tab parts 10 in a rectangle projecting in the surface direction are formed integrally at positions where respective tab parts 10 are to be formed.
  • the tab part 10 having an angle as illustrated in the drawing is formed.
  • the height of the tab part 10 in this embodiment coincides with the total thickness of the bottom plate 3 , a plurality of the inner plates 4 and the top plate 2 .
  • cutout parts 11 having rectangular planar shapes are formed. Positions of the respective cutout parts 11 match positions of the respective tab parts 10 formed on the bottom plate 3 as shown by respective arrows.
  • FIG. 2 illustrates a perspective view showing a state where a stacked plate heat exchanger in FIG. 1 is temporarily fixed.
  • the top plate 2 , the bottom plate 3 and a plurality of the inner plates 4 are stacked in close contact with each other, and respective tab parts 10 formed on the bottom plate are fitted to cutout parts 11 formed in the top plate 2 and respective inner plates 4 .
  • each cutout part 11 of respective inner plates 4 is made to coincide with each tab part 10 of the bottom plate 3 , and in the state, while each tab part 10 is fitted to each cutout part 11 corresponding thereto, these are stacked. Subsequently, onto the upper surface of the stacked inner plates 4 , the top plate 2 is stacked. On this occasion, in the same way as the inner plate 4 , the stacking is performed, fitting each of tab parts 10 to each of cutout parts 11 each other.
  • a plurality of inner plates 4 are stacked in advance, the top plate 2 is arranged to the stacked body and then a bottom plate is arranged to the bottom surface of the stacked body, and respective tab parts 10 are upwardly bent to perform the fitting at once.
  • the top plate 2 , the inner plate 4 and the bottom plate can also be temporarily fixed all together.
  • Each plate stacked as described above can be stacked with high accuracy and easily on the basis of a positioning effect caused by the fitting of the tab part 10 and the cutout part 11 . Then, the temporarily fixed stacked body as illustrated in FIG. 2 is mutually fixed by brazing or the like.
  • FIG. 3 illustrates a second embodiment of the stacked plate heat exchanger, in which respective members when temporary fixing is performed are shown as an exploded perspective view.
  • the heat exchanger 1 has a cup plate structure.
  • a different point of a heat exchanger 1 of this embodiment from the heat exchanger 1 of the completely stacked type in FIG. 1 is a combination form of the top plate and the cup-shaped bottom plate, and the others are configured in the same way. Accordingly, the same sign is given to the same part as that in the heat exchanger 1 in FIG. 1 , and overlapping explanation will be omitted.
  • the bottom plate 3 configuring the heat exchanger 1 is formed in a cup type having a short side wall at a periphery edge part instead of the flat plate shape in FIG. 1 . It is configured such that the top plate 2 is formed in a flat plate shape, and that the periphery edge part thereof can be mounted on a flange formed on the upper part of the short side wall of the bottom plate 3 .
  • three tab parts 10 are formed on the periphery edge part of the inner plate 4 to be lain at the lowermost tier in stacking.
  • one end part is formed in a trapezoidal shape and the other end part is formed in an approximately rectangular shape, and the tab parts 10 are formed on two slopes of the trapezoidal end part and on the center part of the rectangular end part.
  • FIG. 4 illustrates a state where the inner plates 4 having been temporarily fixed one another as described above are fixed to one another by brazing or the like, subsequently the bottom plate 3 is arranged on the bottom surface side thereof, and then the periphery edge part of the top plate 2 arranged on the upper surface side is mounted on the flange at the upper part of side wall of the bottom plate 3 .
  • respective members of the top plate 2 , the inner plate 4 and the bottom plate 3 can be brazed all together and fixed.
  • FIG. 5 illustrates only a part of inner plates shown in FIG. 3 , in which a range of a sign VI shown with a dashed one-dotted line in the drawing is a part of the tab part 10 and the cutout part 11 .
  • a range of a sign VI shown with a dashed one-dotted line in the drawing is a part of the tab part 10 and the cutout part 11 .
  • FIG. 6(A) shows the same state as FIG. 5 before the fitting
  • (B) shows the state after the fitting
  • (C) shows a partially enlarged cross-sectional view in (B) seen in a C-C arrow direction.
  • the tab part 10 formed on a periphery edge part of the inner plate 4 lying on the lowermost tier in stacking is formed in a long and thin rectangular shape having a pair of side surfaces 12 and 13 parallel to each other and an end part 14 forming the tip of these, and, on each outside of side surfaces 12 and 13 , a gap part 15 in a long and thin rectangular shape is provided.
  • the length in a longer direction of the tab part 10 is set to a value matching the total thickness of the other inner plates 4 on which no tab part 10 is formed.
  • two gap parts 15 are provided in order to make the upward bending of the tab part 10 easy.
  • each bottom surface position in two gap parts 15 works as a starting point part when the tab part 10 is to be upwardly bent.
  • Each cutout part 11 formed in the other inner plates 4 , on which no tab part 10 is formed, is formed in a rectangular shape having a pair of side surfaces 16 and 17 parallel to each other and a flat bottom surface 18 orthogonal to these side surfaces 16 and 17 , as shown in FIG. 6(B) , and a space between the pair of side surfaces 16 and 17 is set to a value matching the space between side surfaces 12 and 13 of the tab part 10 , that is, a value that can secure and maintain suitable fitting strength.
  • each of periphery edge parts of all the inner plates 4 is made to coincide with each other.
  • the tab part 10 and a plurality of cutout parts 11 are fitted at a time.
  • a surface 19 of the tab part 10 in the bent direction that is, the surface facing the bottom surface 18 of the cutout part 11 in the upwardly bent state is separated with a predetermined space from the bottom surface 18 of the cutout part.
  • the space of the separation can be set as intended by selecting positions of flat bottom surfaces in two gap parts 15 of the tab part 10 , in other words, a space between the position to be the start point part when the tab part 10 is to be upwardly bent and a position of the the bottom surface 18 of the cutout part 11 .
  • FIG. 7 illustrates a third embodiment of the stacked plate heat exchanger, in which (A) shows an exploded perspective view regarding respective inner plates in the temporary fixing, and (B) shows a perspective view of the inner plates after the temporary fixing.
  • Different points of this embodiment from the inner plate 4 shown in FIG. 3 are only the shape of the tab part 10 and the shape of the cutout part 11 to be fitted thereto, and the others are configured in the same way.
  • each of the tab parts 10 is formed on two portions in the inside separated from the periphery edge part of the end part of trapezoidal shape and on one portion at the periphery edge part of the end part of rectangular shape.
  • the tab parts 10 formed on two portions in the inside separated from the periphery edge part of the end part of trapezoidal shape are upwardly bent to the outside in width direction of the inner plate 4 formed in a long and thin shape.
  • This tab part 10 is formed in a long and thin rectangular shape having a pair of side surfaces parallel to each other and an end part forming the front edge thereof in the same way as the tab part 10 shown in FIG. 6 . Moreover, the length thereof is set, in the same way as the example in FIG. 6 , to a value matching with the total thickness of the other inner plates 4 on which no tab part 10 is formed. Incidentally, the tab part 10 formed on one portion of the periphery edge part of the end part in rectangular shape has also the same shape.
  • the cutout parts 11 in the other inner plates 4 on which no tab part 10 is formed have different shapes in the trapezoidal end part and in the rectangular end part of these inner plates 4 . That is, the cutout part 11 in the end part of trapezoidal shape is formed of a hole part in a long and thin rectangular shape. Length in the longer direction in the hole part of a rectangular shape is a value matching the space of side surfaces of the tab part 10 to be fitted thereto, in other words, is set to a value that can secure and keep a suitable fitting strength.
  • the cutout part 11 in the end part of the rectangular shape is formed in the same shape as the cutout part shown in FIG. 6 .
  • FIG. 7(B) When respective inner plates 4 shown in FIG. 7(A) are stacked and the tab parts 10 and respective cutout parts 11 are mutually fitted and temporarily fixed, a state in FIG. 7 (B) is given.
  • FIG. 7(B) at the end part of the trapezoidal shape in the inner plates 4 , a pair of the tab parts 10 on the inner plate 4 lying on the lowermost tier are linearly inserted into the cutout parts 11 in respective inner plates 4 lying on the upper side stacked thereon to thereby be fitted to each other.
  • a pair of the tab parts 10 on the inner plate 4 lying at the lowermost part are upwardly bent and fitted from a lateral direction to the cutout parts 11 of respective inner plates 4 stacked on the upper side.
  • FIG. 8 illustrates a fourth embodiment of the stacked plate heat exchanger, in which FIG. 8(A) is an exploded perspective view of respective inner plates when they are temporarily fixed, and FIG. 8(B) is an enlarged perspective view of a B part shown in FIG. 8(A) .
  • Each inner plate of this embodiment has a shape similar to that of the inner plate 4 shown in FIG. 7 , and one of end parts in the longer direction is formed in a trapezoidal shape and the other end part is formed in an approximately rectangular shape.
  • a circulation hole for a fluid to be formed in the inner plate is vertically classified into two types bordering approximately the center portion of the number of stacking tiers.
  • circulation holes of inner plates 4 on the upper side in FIG. 8(A) are aligned approximately over the entire surface of the plate, but circulation holes of inner plates 4 on the lower side are aligned with a space over the plate surface.
  • a heat exchange performance of inner plates 4 stacked in this way is higher on the upper tier side as compared with the lower tier side.
  • electric parts that require a high heat exchange performance can be arranged on the outer surface (top surface) on the upper tier side, and electric parts for which a heat exchange performance may be slightly low can be arranged on the outer surface (bottom surface) on the lower tier side. Consequently, two types of cooling becomes possible with a single heat exchanger, and an overall heat exchange efficiency can also be improved.
  • FIG. 8(A) on one inner plate 4 lying at approximately the central portion of inner plates 4 to be stacked, a plurality of tab parts 10 are formed, and in the other inner plates 4 , cutout parts 11 are formed.
  • tab parts 10 On the inner plate 4 on which tab parts 10 are to be formed, on three positions of the periphery edge part in the end part of trapezoidal shape thereof, tab parts 10 each having a rectangular shape are formed, in which, as shown in FIG. 8(B) in an enlarged state, the tab part 10 at the center of the periphery edge part is formed downward and tab parts 10 lying on right and left sides of the periphery edge part and sandwiching the downward one are formed upward.
  • tab parts 10 each having a rectangular shape are formed, in which the tab part 10 at the center of the periphery edge part is formed upward, and tab parts 10 lying on right and left sides of the periphery edge part and sandwiching the upward one are formed downward.
  • Each cutout part 11 of respective inner plates 4 lying on the upper tier side, on which no tab part 10 is formed is formed in a rectangular shape in a position corresponding to the upward tab part 10 in the inner plate 4 on which tab parts 10 have been formed.
  • each cutout part 11 in the plurality of inner plates 4 lying on the lower tier side, on which no tab part 10 is formed is formed in a rectangular shape in a position corresponding to the position of the downward tab part 10 in the inner plate 4 on which the tab parts 10 are formed.
  • the inner plates 4 in a plurality of tiers configured as described above are temporarily fixed by fitting tab parts 10 formed on one inner plate 4 lying approximately the central portion to cutout parts 11 formed in the other inner plates 4 each other.
  • a process similar to the fitting process shown in FIG. 6 may be used, but, in some cases, the tab parts 10 may also be fitted in a state formed upward or downward to the cutout parts 11 , as shown in FIG. 8(A) .
  • the location of the upward tab part 10 and the location of the downward tab part 10 are different from each other.
  • the reason is that fitting locations of respective inner plates 4 lying on the upper tier side do not mutually overlap the fitting locations of respective inner plates 4 lying on the lower tier side to prevent erroneous assembling.
  • FIG. 9 relates to a fifth embodiment, in which FIG. 9(A) is an exploded perspective view of respective inner plates when the temporary fixing is performed, FIG. 9(B) is an enlarged perspective view showing a B part in FIG. 9(A) , and FIG. 9(C) is a partially enlarged cross-sectional view seen from a C-C arrow direction in FIG. 9(B) .
  • An inner plate configuration of this embodiment is a modified example of the inner plate configuration shown in FIG. 8 . Two different points from the embodiment in FIG.
  • an inner plate 4 on which the tab part 10 is to be formed is an inner plate 4 to be stacked in contact with the upper side of the lower most tier, and that a fitting structure between a part of the tab parts 10 and the cutout part 11 in the inner plate lying at the lowermost tier is different.
  • tab parts 10 in an upward rectangular shape have been formed in the same way as that in the embodiment in FIG. 8 .
  • a tab part 10 a in a short columnar shape is formed at four positions.
  • Cutout parts 11 of respective inner plates 4 lying on the upper tier side, on which no tab part 10 is formed are formed at positions corresponding to the upward tab parts 10 , and have a rectangular shape in the same way as that in the embodiment in FIG. 8 .
  • a cutout part 11 a in the inner plate 4 lying at the lowermost tier has been formed in a through hole having a circular cross-section with a size corresponding to the columnar shape of the tab part 10 a.
  • Fitting between the inner plate 4 on which the tab part 10 is formed and the inner plate 4 lying on the upper tier side, in which the cutout part 11 in a rectangular shape is formed, is the same as that in the embodiment in FIG. 8 .
  • fitting between the inner plate 4 on which the tab part 10 a in a short columnar shape is formed and the inner plate 4 lying at the lowermost tier, in which the cutout part 11 a configured of a circular through hole is formed is performed as shown in FIG. 9(C) by inserting the tab part 10 a in a columnar shape into the cutout part 11 a configured of a circular through hole.
  • the stacked plate heat exchanger of the present invention is applicable for a cooler for cooling electronic devices such as an inverter, and the like.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
US16/071,025 2016-01-27 2017-01-26 Stacked plate heat exchanger Abandoned US20190024986A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016012910 2016-01-27
JP2016-012910 2016-06-16
PCT/JP2017/003878 WO2017131240A1 (fr) 2016-01-27 2017-01-26 Échangeur de chaleur à plaques empilées

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US20190024986A1 true US20190024986A1 (en) 2019-01-24

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US16/071,025 Abandoned US20190024986A1 (en) 2016-01-27 2017-01-26 Stacked plate heat exchanger

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US (1) US20190024986A1 (fr)
EP (1) EP3410056B1 (fr)
JP (1) JP6802811B2 (fr)
CN (1) CN108603733B (fr)
WO (1) WO2017131240A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019205383A1 (de) * 2019-04-15 2020-10-15 Vitesco Technologies Germany Gmbh Kühler zur Kühlung einer Elektronikschaltung, Leistungselektronikvorrichtung mit einem Kühler

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Publication number Priority date Publication date Assignee Title
DE112019005206T5 (de) 2018-10-19 2021-07-08 T.Rad Co., Ltd. ldentifikationsstruktur von Platten einer Kühlvorrichtung vom Stapeltyp
JP7213078B2 (ja) * 2018-12-14 2023-01-26 株式会社ティラド 積層型熱交換器
JP7407619B2 (ja) 2020-02-25 2024-01-04 株式会社ティラド プレート積層コア型熱交換器

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JP3026315B2 (ja) 1991-10-02 2000-03-27 松下冷機株式会社 積層型熱交換器の製造方法
US5587053A (en) * 1994-10-11 1996-12-24 Grano Environmental Corporation Boiler/condenser assembly for high efficiency purification system
JPH08233481A (ja) * 1995-02-24 1996-09-13 Nippondenso Co Ltd 熱交換器
SE531048C2 (sv) * 2005-03-11 2008-12-02 Alfa Laval Corp Ab Värmeväxlare
JP2006292223A (ja) * 2005-04-07 2006-10-26 Calsonic Kansei Corp 積層型熱交換器
JP2007017054A (ja) * 2005-07-06 2007-01-25 Luft Wasser Project:Kk 板状熱交換器及びその製造方法
DE102009006855A1 (de) * 2008-11-04 2010-05-06 Munters Euroform Gmbh Plattenpaket für Kaltendlage
DE102013014434A1 (de) * 2013-08-30 2015-03-05 Modine Manufacturing Company Gelöteter Wärmetauscher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019205383A1 (de) * 2019-04-15 2020-10-15 Vitesco Technologies Germany Gmbh Kühler zur Kühlung einer Elektronikschaltung, Leistungselektronikvorrichtung mit einem Kühler

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WO2017131240A1 (fr) 2017-08-03
JPWO2017131240A1 (ja) 2019-01-10
JP6802811B2 (ja) 2020-12-23
CN108603733A (zh) 2018-09-28
EP3410056A4 (fr) 2019-09-11
CN108603733B (zh) 2021-05-28
EP3410056B1 (fr) 2021-03-24
EP3410056A1 (fr) 2018-12-05

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