US20180031325A1 - Heat exchanger, heat exchanger assembling apparatus, and heat exchanger assembling method - Google Patents

Heat exchanger, heat exchanger assembling apparatus, and heat exchanger assembling method Download PDF

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Publication number
US20180031325A1
US20180031325A1 US15/550,430 US201615550430A US2018031325A1 US 20180031325 A1 US20180031325 A1 US 20180031325A1 US 201615550430 A US201615550430 A US 201615550430A US 2018031325 A1 US2018031325 A1 US 2018031325A1
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United States
Prior art keywords
tubes
heat exchanger
tube
laminate
assembling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US15/550,430
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English (en)
Inventor
Hiroki Katou
Yasuyuki Shinohara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Calsonic Kansei Corp
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Filing date
Publication date
Application filed by Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Priority claimed from PCT/JP2016/053555 external-priority patent/WO2016129530A1/ja
Assigned to CALSONIC KANSEI CORPORATION reassignment CALSONIC KANSEI CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KATOU, HIROKI, SHINOHARA, YASUYUKI
Publication of US20180031325A1 publication Critical patent/US20180031325A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/0292—Other particular headers or end plates with fins

Definitions

  • the present invention relates to a heat exchanger, a heat exchanger assembling apparatus, and a heat exchanger assembling method.
  • a heat exchanger used for a radiator or the like of an automotive vehicle includes a plurality of tubes and fins, which are laminated, and a pair of tanks connected to opening ends of respective tubes. Automatically assembling this type of heat exchanger requires holding each laminated tube at a predetermined position.
  • JP02-035630U there is an assembling apparatus for a heat exchanger core including a compression claw for alternately laminating and arranging a plurality of tubes and fins on a set plate and compressing each of the tubes and fins in a laminate direction.
  • JP61-025734A there is a plate assembling apparatus for a heat exchanger core that alternately laminates and arranges a plurality of tubes and fins on a table, compresses respective tubes and fins in the laminate direction in a state where the tubes and fins are sandwiched between an upper guide plate and a lower guide plate from above and bottom, and inserts an opening end of each tube into a hole of a side plate (tank).
  • the object of the present invention is to provide a heat exchanger, a heat exchanger assembling apparatus, and a heat exchanger assembling method, in which assembling each of the laminated tubes with the tank can be accurately performed.
  • a heat exchanger including a plurality of laminated tubes having an opening end to which a tank is connected, the heat exchanger including a pressing portion is provided in the vicinity of the opening end of each tube, the tube being held by the pressing portion when the tank is connected to the opening end of the tubes is provided.
  • a heat exchanger assembling apparatus for connecting a tank with an opening end of a plurality of laminated tubes
  • the assembling apparatus includes: a table on which respective tubes can be laminated; a laminate-direction compressing unit configured to compress the plurality of tubes laminated on the table in a laminate direction; and a thickness-direction compressing unit configured to compress the plurality of tubes in a thickness direction perpendicular to the table, wherein the thickness-direction compressing unit includes a holding portion configured to press the vicinity of the opening end of the plurality of tubes, compressed in the laminate direction by the laminate-direction compressing unit, against the table, and the holding portion holds the plurality of tubes when the tank is connected to the plurality of tubes is provided.
  • a heat exchanger assembling method for connecting a tank with an opening end of a plurality of laminated tubes includes: a lamination process for laminating the plurality of tubes; a main compression process for compressing the plurality of tubes in a laminate direction; and an assembling process for connecting the tank to the plurality of tubes in a state where the plurality of tubes are held and pressed by a holding portion for holding the tubes in the vicinity of the opening end of the plurality of tubes compressed in the laminate direction is provided.
  • the pressing portion provided in the vicinity of the opening end of each tube is pressed and therefore the positional deviation can be suppressed from occurring in each tube. Therefore, each of the laminated tubes can be accurately assembled with the tank.
  • FIG. 1 is a front view illustrating a schematic configuration of a heat exchanger core according to an embodiment of the present invention
  • FIG. 2A illustrates a process for assembling the heat exchanger core
  • FIG. 2B illustrates a process for assembling the heat exchanger core
  • FIG. 2C illustrates a process for assembling the heat exchanger core
  • FIG. 2D illustrates a process for assembling the heat exchanger core
  • FIG. 3A is a configuration diagram illustrating an operation of an assembling apparatus in a lamination process
  • FIG. 3B is a configuration diagram illustrating an operation of the assembling apparatus in a main compression process
  • FIG. 3C is a configuration diagram illustrating an operation of the assembling apparatus in an assembling process
  • FIG. 4A is a configuration diagram illustrating an operation of the assembling apparatus in the lamination process
  • FIG. 4B is a configuration diagram illustrating an operation of the assembling apparatus in the main compression process
  • FIG. 4C is a configuration diagram illustrating an operation of the assembling apparatus in the assembling process
  • FIG. 5A is a cross-sectional view of the tubes illustrating an operation of the assembling apparatus in the lamination process
  • FIG. 5B is a cross-sectional view of the tubes illustrating an operation of the assembling apparatus in the main compression process
  • FIG. 5C is a cross-sectional view of the tubes illustrating an operation of the assembling apparatus in the assembling process
  • FIG. 6 is a front view illustrating a modified embodiment of the heat exchanger core.
  • FIG. 7 is a configuration diagram illustrating an operation of an assembling apparatus according to a comparative example.
  • FIG. 1 is a front view illustrating a schematic configuration of a heat exchanger 10 according to an embodiment of the present invention.
  • the heat exchanger 10 performs heat exchange between a medium flowing inside thereof and external air or the like.
  • the heat exchanger 10 can be used as a radiator for an internal combustion engine, in which cooling liquid flows as the internal medium.
  • the heat exchanger 10 is not limited to the radiator and adoptable as a charge air cooler in which intake air flows as a medium or a condenser of an air conditioner or a cooling device in which a refrigerant gas flows as a medium.
  • the heat exchanger 10 includes a plurality of tubes 11 in which the internal medium flows, corrugated fins 12 arranged alternately with respective tubes 11 , right and left reinforcements 17 disposed in such a way as to be aligned with both ends of a laminate body of respective tubes 11 and fins 12 , and upper and lower tanks 13 and 14 to which opening ends 11 d of respective tubes 11 are connected.
  • the flat tube 11 can be formed by bending a metal plate, such as an aluminum plate, into a cylindrical shape.
  • a metal plate such as an aluminum plate
  • the tube 11 is not limited to a specific type and may be formed by extruding a molten metal material into a cylindrical shape.
  • the tanks 13 and 14 include tank plates 23 and 24 to which opening ends 11 d of respective tubes 11 are connected and dome-shaped tank bodies 25 and 26 assembled with the tank plates 23 and 24 .
  • the tank plates 23 and 24 have tube insertion holes 23 a and 24 a into which the opening ends 11 d of respective tubes 11 are inserted (refer to FIG. 2D ).
  • the tank plates 23 and 24 are, for example, made of a metal member such as an aluminum.
  • the tank bodies 25 and 26 are, for example, made of a resin member.
  • the manufacturing of the heat exchanger 10 includes assembling the tubes 11 , the fins 12 , the reinforcements 17 , and the tank plates 23 and 24 by using an assembling apparatus 50 described below, constituting the heat exchanger core 9 by brazing the assembled members for joining them, and completing the heat exchanger 10 by assembling the heat exchanger core 9 with the tank bodies 25 and 26 .
  • the medium While the heat exchanger 10 is operating, the medium is supplied into the tank 13 from a medium inlet 15 of the tank body 25 .
  • the medium flows into each tube 11 from the tank 13 and subsequently into the tank 14 , and is then discharged from a medium outlet 16 of the tank body 26 .
  • the medium circulating in the heat exchanger 10 exchanges heat with the air via the fins 12 while flowing through respective tubes 11 .
  • FIGS. 2A to 2D illustrate assembling processes of the heat exchanger core 9 .
  • exemplary processes of assembling the heat exchanger core 9 will be described.
  • each fin 12 is hermetically in contact with neighboring tubes 11 .
  • a predetermined number of tubes 11 and fins 12 laminated alternately with each other is referred to as “laminate body 18 ”.
  • the “laminate direction” is the direction along which the tubes 11 and the fins 12 are aligned.
  • the assembling apparatus 50 compresses the laminate body 18 constituted by the tubes 11 and the fins 12 until the interval between two tubes 11 neighboring in the laminate direction becomes equal to a predetermined interval.
  • the predetermined interval is the interval between the tube insertion holes 23 a and 24 a of respective tank plates 23 and 24 (refer to FIG. 2C ).
  • the interval between two neighboring tubes 11 is referred to as “tube pitch”.
  • FIGS. 3A to 3C are schematic configuration diagrams illustrating the assembling apparatus 50 .
  • FIGS. 4A to 4C are schematic configuration diagrams illustrating the assembling apparatus 50 seen from the direction of arrow J illustrated in FIG. 3A .
  • An exemplary configuration of the assembling apparatus 50 will be described in detail below.
  • the assembling apparatus 50 includes a table 51 , a laminate-direction compressing unit 55 , a thickness-direction compressing unit 60 , and a tank assembling unit (not illustrated).
  • the table 51 has a planer portion on which the laminate body 18 constituted by tubes 11 and fins 12 , which are constituent components of the heat exchanger 10 , is placed.
  • the laminate-direction compressing unit 55 is a mechanism which of compresses the laminate body 18 placed on the table 51 in the laminate direction.
  • the laminate-direction compressing unit 55 includes a fixing portion 56 fixed to the table 51 , a movable portion 57 supported by the table 51 so as to be movable in the laminate direction, and an actuator (not illustrated) that can move the movable portion 57 .
  • the thickness-direction compressing unit 60 is a mechanism which compresses the laminate body 18 in a thickness direction perpendicular to the table 51 .
  • the thickness-direction compressing unit 60 includes a leveling plate 61 that can be moved by a driving mechanism 62 in the thickness direction, and a pair of holding portions 63 that can be moved by a driving mechanism 64 in the thickness direction.
  • the “thickness direction” is the direction perpendicular to the surface of the table 51 on which the laminate body 18 is placed.
  • the driving mechanism 62 of the leveling plate 61 includes a guide rod 69 (refer to FIGS. 4A to 4C ) that supports the leveling plate 61 so as to be movable in the vertical direction, a support base 65 , and an actuator 66 that raises or lowers the support base 65 to move the leveling plate 61 .
  • a hydraulic cylinder is adoptable as the actuator 66 .
  • the leveling plate 61 has a planer portion, which extends parallel to the table 51 , to press each tube 11 placed on the table 51 .
  • the driving mechanisms 64 of the holding portions 63 include a pair of guide portions 67 each supporting the corresponding holding portion 63 so as to be movable in the vertical direction with respect to the support base 65 , and a pair of actuators 68 for raising and lowering corresponding guide portions 67 to move the holding portions 63 .
  • a hydraulic cylinder is adoptable as the actuator 68 .
  • the holding portion 63 is a convex portion protruding from each guide portion 67 and pressing each tube 11 .
  • Each tube 11 has a pressing portion 11 g , against which the holding portion 63 is pressed, in the vicinity of the opening end 11 d .
  • the pressing portion 11 g has a concave portion 11 a (i.e., pressed mark), which is formed as a recess on a surface 11 b of the tube 11 when the holding portion 63 is pressed against the tube 11 .
  • Respective holding portions 63 are arranged with the table 51 sandwiched in the longitudinal direction of the tube 11 and extend parallel to both ends of the table 51 .
  • Each holding portion 63 is disposed in such a way as to face a predetermined position of each tube 11 placed on the table 51 .
  • the pressing portion 11 g provided on the tube 11 is spaced from the tank plates 23 and 24 by a predetermined distance L.
  • the holding portion 63 is formed integrally with the guide portion 67 , although the holding portion 63 can be formed separately of the guide portion 67 .
  • the leveling plate 61 and each holding portion 63 are, for example, made of a metal member such as an iron, whose hardness is higher than that of the tube 11 .
  • the area where the leveling plate 61 comes into contact with respective tubes 11 is set to be greater than the area where respective holding portions 63 come into contact with respective tubes 11 .
  • Such a configuration can prevent any plastic deformation from occurring on the tube 11 at a portion where the leveling plate 61 is pressed.
  • FIG. 5C corresponds to a cross-sectional view of the tube 11 taken along a line VC-VC illustrated in FIG. 1 .
  • the assembling apparatus 50 performs the lamination process for laminating the laminate body 18 on the table 51 at a predetermined position thereof (refer to FIG. 3A , FIG. 4A , and FIG. 5A ).
  • the lamination process includes placing the laminate body 18 constituted by a predetermined number of tubes 11 and fins 12 arranged respectively on the table 51 , and causing the driving mechanism 62 of the thickness-direction compressing unit 60 to lower the support base 65 toward the table 51 so that the laminate body 18 is pressed in the thickness direction by the leveling plate 61 and each holding portion 63 with a driving force B (refer to FIG. 3A ).
  • Each holding portion 63 is held at a position on the same plane (on the horizontal plane) as the leveling plate 61 and presses the laminate body 18 together with the leveling plate 61 . In this case, no plastic deformation occurs in the pressing portion 11 g of the tube 11 pressed by each holding portion 63 (refer to FIG. 5A ).
  • the lamination process may include moving the holding portion 63 upward away from the laminate body 18 and pressing the laminate body 18 by only the leveling plate 61 .
  • the lamination process includes causing the laminate-direction compressing unit 55 to move the movable portion 57 toward the fixing portion 56 to compress the laminate body 18 with a driving force A in the laminate direction (refer to FIG. 4A ).
  • the compression by the laminate-direction compressing unit 55 in the lamination process continues until the tube pitch reaches, for example, 90% of the above-mentioned predetermined interval.
  • the driving force B required for the driving mechanism 62 to press the laminate body 18 against the table 51 is set to be appropriate in smoothly moving the tubes 11 and the fins 12 pressed by the movable portion 57 of the laminate-direction compressing unit 55 toward the fixing portion 56 .
  • the driving force B of the driving mechanism 62 can be controlled based on a stroke amount required for the driving mechanism 62 to move the leveling plate 61 toward the table 51 , instead of setting the driving force B for the driving mechanism 62 .
  • the setting of the stroke amount is performed in such a way as to equalize the interval between the table 51 and the leveling plate 61 with the thickness of the laminate body 18 .
  • the laminate body 18 is compressed in both the thickness direction and the laminate direction and can be placed at a predetermined position on the table 51 without being lifted off the table 51 .
  • the assembling apparatus 50 performs the main compression process for compressing the laminate body 18 until the tube pitch becomes equal to the above-mentioned predetermined interval (refer to FIGS. 3B, 4B , and 5 B).
  • FIG. 7 is a configuration diagram illustrating an operation of an assembling apparatus 150 according to a comparative example.
  • a thickness-direction compressing unit 160 of the assembling apparatus 150 does not have any holding portion and compresses the laminate body 18 by using only a leveling plate 161 in the thickness direction.
  • the thickness-direction compressing unit 160 is subjected to a frictional force M acting from the laminate body 18 .
  • the frictional force M When the frictional force M is large, the frictional force M deforms a guide rod 169 supporting the leveling plate 161 so as to be inclined by an angle ⁇ , while the leveling plate 161 is displaced in the laminate direction by a distance N and inclines with respect to the table 51 . Accordingly, if the orientation of the leveling plate 161 changes, undesirable positional deviation in which some of the tubes 11 are lifted off the table 51 may occur.
  • the driving mechanism 62 of the thickness-direction compressing unit 60 lowers the support base 65 toward the table 51 to cause the leveling plate 61 to press the laminate body 18 with a driving force E in the thickness direction (refer to FIG. 3B ).
  • each holding portion 63 moves upward away from the laminate body 18 as indicated by arrow F.
  • the laminate-direction compressing unit 55 compresses the laminate body 18 with a driving force D in the laminate direction to equalize the tube pitch with the above-mentioned predetermined interval (refer to FIG. 4B ).
  • the driving force D in the main compression process is set to be greater than the driving force A in the lamination process.
  • the driving force E required for the driving mechanism 62 to press the laminate body 18 against the table 51 is set to be greater than the driving force B in the lamination process and appropriate in smoothly moving the tubes 11 and the fins 12 pressed by the movable portion 57 of the laminate-direction compressing unit 55 toward the fixing portion 56 .
  • the driving force E of the driving mechanism 62 can be controlled based on a stroke amount required for the driving mechanism 62 to move the leveling plate 61 toward the table 51 , instead of setting the driving force E of the driving mechanism 62 .
  • the interval between the table 51 and the leveling plate 61 is set to be slightly smaller than the thickness of the laminate body 18 .
  • each holding portion 63 is separated from the laminate body 18 (refer to FIG. 5B ) and the pressing force with which the holding portion 63 presses the laminate body 18 becomes zero. Therefore, when the laminate-direction compressing unit 55 compresses the laminate body 18 in the laminate direction, a frictional force C that the driving mechanism 62 of the thickness-direction compressing unit 60 receives from the laminate body 18 is suppressed to be smaller. As a result, the guide rod 69 supporting the leveling plate 61 or the like is suppressed from deflecting, and the orientation of the leveling plate 61 can be held to face the table 51 in parallel with each other. The orientation of the leveling plate 61 as mentioned above is maintained in the main compression process can prevent the positional deviation in which some of the tubes 11 are lifted off the table 51 can be prevented from occurring.
  • the assembling process is performed for assembling the tank plates 23 and 24 with the laminate body 18 held on the table 51 (refer to FIGS. 3C, 4C, and 5C ).
  • the laminate-direction compressing unit 55 compresses the laminate body 18 with a driving force G in the laminate direction (refer to FIG. 4C ), while the actuator 66 of the driving mechanism 62 presses the laminate body 18 by the leveling plate 61 with a driving force H in the thickness direction.
  • the actuator 68 of the driving mechanism 64 presses the laminate body 18 by the holding portion 63 with a driving force I in the thickness direction (refer to FIG. 3C ).
  • the surface 11 b of the pressing portion 11 g of the tube 11 curved into an arc shape is pressed by the holding portion 63 with driving force I and, as a result, the concave portion 11 a is formed.
  • the concave portion 11 a has a pair of step portions 11 c opposed to each other. Each step portion 11 c extends in a direction (lateral direction) perpendicular to the longitudinal direction of the tube 11 .
  • the driving force I required for the driving mechanism 64 to move the holding portion 63 is set to be appropriate such that the tube 11 pressed by the holding portion 63 deforms plastically and the concave portion 11 a having a predetermined depth can be formed on the surface 11 b of the pressing portion 11 g of the tube 11 .
  • the load with which the holding portion 63 presses each tube 11 is set to be greater than the load with which the leveling plate 161 presses the laminate body 18 in the comparative example illustrated in FIG. 7 .
  • the driving force I of the driving mechanism 64 can be controlled based on a stroke amount required for the driving mechanism 64 to move the holding portion 63 toward the table 51 , instead of setting the driving force I of the driving mechanism 64 .
  • the stroke amount is set performed in such a manner that the interval between the table 51 and the holding portion 63 becomes smaller than the thickness of the tube 11 by a predetermined amount. Setting the stroke amount as mentioned above, thereby the concave portion 11 a having the predetermined depth is formed on the surface of the pressing portion 11 g of the tube 11 .
  • the depth of the concave portion 11 a can be changed by adjusting the load or the stroke amount required for the holding portion 63 to press each tube 11 . Further, as described below, in the pressing portion 11 g of the tube 11 , it is feasible to prevent the surface 11 b of the tube 11 from plastically deforming so as not to form the concave portion 11 a.
  • the tank assembling unit (not illustrated) is operated to assemble the tank plates 23 and 24 with the laminate body 18 in a state where the laminate body 18 is held on the table 51 .
  • the laminate body 18 is compressed by the laminate-direction compressing unit 55 and is restricted from moving in the laminate direction.
  • the holding portion 63 is pressed against the concave portion 11 a , each tube 11 is restricted from moving in both the thickness direction and the longitudinal direction of the tube 11 .
  • press-fitting the opening ends 11 d of respective tubes 11 into the tube insertion holes 23 a and 24 a of the tank plates 23 and 24 can be accurately performed.
  • the heat treatment is performed to cause the cladding layers applied beforehand to the surfaces of the tubes 11 , the fins 12 , and the tank plates 23 and 24 to melt and braze the constituent components together, thereby forming the heat exchanger core 9 .
  • the tank bodies 25 and 26 are united with the tank plates 23 and 24 to complete the heat exchanger 10 .
  • the present embodiment provides the heat exchanger 10 including the pressing portion 11 g for holding the tube 11 when the tanks 13 and 14 are connected in the vicinity of the opening end 11 d of each tube 11 .
  • the present embodiment provides the assembling apparatus 50 that includes the table 51 on which respective tubes 11 are laminated, the laminate-direction compressing unit 55 configured to compress respective tubes 11 laminated on the table 51 in the laminate direction, and the thickness-direction compressing unit 60 configured to compress respective tubes 11 in the thickness direction perpendicular to the table 51 .
  • the thickness-direction compressing unit 60 includes the holding portion 63 configured to press the vicinity of the opening ends 11 d of respective tubes 11 , compressed in the laminate direction by the laminate-direction compressing unit 55 , against the table 51 .
  • the holding portion 63 holds the plurality of tubes 11 when the tanks 13 and 14 are connected to respective tubes 11 .
  • the present embodiment provides the assembling method including the lamination process for laminating respective tubes 11 , the main compression process for compressing respective tubes 11 in the laminate direction, and the assembling process for connecting the tanks 13 and 14 with respective tubes 11 in a state where the tubes 11 are held and pressed by the holding portion 63 for holding each tube 11 in the vicinity of the opening end 11 d of respective tubes 11 compressed in the laminate direction.
  • the above-mentioned configuration can suppress the positional deviation from occurring in each laminated tube 11 because the holding portion 63 presses each tube 11 in the vicinity of the opening end 11 d when the tanks 13 and 14 are connected to the laminated tubes 11 . Therefore, the operation for assembling the tanks 13 and 14 with the laminated tubes 11 can be accurately performed. Accordingly, the tubes 11 and the tube insertion holes 23 a and 24 a of the tanks 13 and 14 can be prevented from being damaged. As a result, the brazing for joining the tubes 11 and the tube insertion holes 23 a and 24 a can be accomplished without causing any gap and the yield in the assembling operation of the heat exchanger 10 can be improved.
  • the present embodiment provides the heat exchanger 10 in which the pressing portion 11 g includes the concave portion 11 a recessed as the pressed mark on the surface 11 b of the tube 11 .
  • the above-mentioned configuration can suppress the positional deviation from occurring in each laminated tube 11 because the holding portion 63 presses and plastically deforms the surface 11 b of each tube 11 , and engages with the concave portion 11 a which has been recessed by the pressing, when the tanks 13 and 14 are connected to the laminated tubes 11 .
  • the present embodiment provides the heat exchanger 10 in which the pressing portions 11 g are formed at positions apart from the tanks 13 and 14 by the predetermined distance L in the longitudinal direction of the tube 11 .
  • the above-mentioned configuration can prevent the holding portion 63 pressed against the pressing portion 11 g from interfering with the tanks 13 and 14 when the tanks 13 and 14 are assembled with the tubes 11 .
  • the operation for assembling the tanks 13 and 14 with the tubes 11 can be smoothly performed in a state where the holding portion 63 is pressed against the concave portion 11 a.
  • the present embodiment provides the assembling apparatus 50 for the heat exchanger 10 , in which the thickness-direction compressing unit 60 includes the leveling plate 61 aligned with the holding portion 63 and pressing respective tubes 11 against the table 11 .
  • the leveling plate 61 compresses each tube 11 in the thickness direction in a state where the holding portion 63 is separated from each tube 51 .
  • the above-mentioned configuration can maintain the orientation of the leveling plate 61 when the laminate-direction compressing unit 55 compresses the laminate body 18 in the laminate direction, because the leveling plate 61 is in sliding contact with the laminate body 18 and the leveling plate 61 receives a smaller frictional force from the laminate body 18 . Maintaining the orientation of the leveling plate 61 in the main compression process as mentioned above, the positional deviation in which some of the tubes 11 are lifted off the table 51 can be prevented from occurring.
  • the pressing portion 11 g has a pressed mark portion 11 f , which is formed as a pressed mark to be formed on the surface of each tube 11 .
  • each tube 11 In the assembling process, the load or the stroke amount required for pressing the holding portion 63 against each tube 51 is appropriately set so that each tube 11 can return to the original surface shape without causing any plastic deformation even when the surface is deflected by the pressing of the holding portion 63 (refer to FIGS. 3C and 4C ). As a result, the pressing portion 11 g of each tube 11 is formed with the pressed mark portion 11 f whose surface roughness is partly variable without forming any concave portion by pressing the holding portion 63 .
  • the holding portion 63 presses the surface of each tube 11 when the tanks 13 and 14 are connected, and therefore it is feasible to suppress the positional deviation from occurring in respective tubes 11 laminated on the table 51 . Therefore, the operation for assembling the tanks 13 and 14 with the laminated tubes 11 can be accurately performed.
  • the configuration is not limited to the above-mentioned example.
  • the assembling process can be configured such that any pressed mark does not remain on the surface of each tube 11 by appropriately setting the load or the stroke amount required for the holding portion 63 to press each tube 11 .
  • the leveling plate 61 and the holding portion 63 are configured to move vertically with respect to the table 51 so as to press the laminate body 18 .
  • the configuration is not limited to the above-mentioned example.
  • a rotating mechanism using a hinge is adoptable to press the laminate body 18 from an inclined direction.
  • the laminate body 18 is constituted such that the tubes 11 and the fins 12 are laminated.
  • the configuration is not limited to the above-mentioned example.
  • the laminate body 18 can be configured to include only the tubes to be laminated without fins.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US15/550,430 2015-02-12 2016-02-05 Heat exchanger, heat exchanger assembling apparatus, and heat exchanger assembling method Abandoned US20180031325A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2015-025527 2015-02-12
JP2015025527 2015-02-12
JP2016-008445 2016-01-20
JP2016008445A JP2016153718A (ja) 2015-02-12 2016-01-20 熱交換器、熱交換器の組み立て装置、及び熱交換器の組み立て方法
PCT/JP2016/053555 WO2016129530A1 (ja) 2015-02-12 2016-02-05 熱交換器、熱交換器の組立装置、及び熱交換器の組立方法

Publications (1)

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US20180031325A1 true US20180031325A1 (en) 2018-02-01

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US15/550,430 Abandoned US20180031325A1 (en) 2015-02-12 2016-02-05 Heat exchanger, heat exchanger assembling apparatus, and heat exchanger assembling method

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US (1) US20180031325A1 (enExample)
EP (1) EP3258202B1 (enExample)
JP (1) JP2016153718A (enExample)
CN (1) CN107250702A (enExample)

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Publication number Priority date Publication date Assignee Title
CN113785168A (zh) * 2019-05-14 2021-12-10 三菱电机株式会社 热交换器及制冷循环装置
CN114131301A (zh) * 2021-11-08 2022-03-04 格力电器(洛阳)有限公司 空调外机侧板装配系统

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US20130220585A1 (en) * 2010-11-11 2013-08-29 Denso Corporation Tube for heat exchanger
JP2014237186A (ja) * 2013-06-07 2014-12-18 カルソニックカンセイ株式会社 熱交換器の組立装置及び組立方法

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WO1998009124A1 (en) * 1996-08-29 1998-03-05 Zexel Corporation Heat exchanger
DE10260107A1 (de) * 2001-12-21 2003-10-02 Behr Gmbh & Co Wärmeübertrager, insbesondere für ein Kraftfahrzeug
KR20050110027A (ko) * 2003-03-18 2005-11-22 쇼와 덴코 가부시키가이샤 열교환기를 임시 조립하는데 사용하는 튜브 블랭크 교정부재 및 열교환기를 임시 조립하는 장치 및 방법

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US20020088119A1 (en) * 2000-12-28 2002-07-11 Calsonic Kansei Corporation Method of manufacturing heat exchanger
US20130220585A1 (en) * 2010-11-11 2013-08-29 Denso Corporation Tube for heat exchanger
JP2014237186A (ja) * 2013-06-07 2014-12-18 カルソニックカンセイ株式会社 熱交換器の組立装置及び組立方法

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN113785168A (zh) * 2019-05-14 2021-12-10 三菱电机株式会社 热交换器及制冷循环装置
CN114131301A (zh) * 2021-11-08 2022-03-04 格力电器(洛阳)有限公司 空调外机侧板装配系统

Also Published As

Publication number Publication date
JP2016153718A (ja) 2016-08-25
EP3258202A1 (en) 2017-12-20
EP3258202A4 (en) 2018-02-21
EP3258202B1 (en) 2019-05-01
CN107250702A (zh) 2017-10-13

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