JP6036329B2 - Heat exchanger and manufacturing method thereof - Google Patents

Description

  The present invention relates to a heat exchanger provided with a tube and a tank.

  2. Description of the Related Art Conventionally, a heat exchanger has been known that includes a plurality of tubes through which heat exchange fluid flows and a header tank to which the tubes are connected, and in which the tank space in the header tank is partitioned into a plurality of spaces. Yes. For example, this is the heat exchanger disclosed in Patent Document 1. In the heat exchanger of Patent Document 1, a plurality of tubes are connected to a core plate member. A tank forming member including an outer shell portion that forms an outer shell of the tank space and a partition plate that divides the tank space into a plurality of spaces is joined to the core plate member, thereby forming a header tank. ing.

  Further, the outer periphery packing provided at the joint portion between the outer shell portion of the tank forming member and the core plate member, and the partition packing provided at the joint portion between the partition plate of the tank forming member and the core plate member, It is united. That is, the outer periphery packing and the partition packing constitute one packing member connected to each joint portion, in other words, an integral packing member.

European Patent Application No. 2295922

  The integral packing member used in the heat exchanger of Patent Document 1 has a shape in which the outer periphery packing and the partition packing are connected, and there is a problem that the shape is complicated. When the shape of the packing member is complicated as described above, problems such as high cost of the packing member itself and long assembly time in the assembly process of the packing member are likely to occur.

  The present invention has been made in view of the above points, and it is an object of the present invention to provide a heat exchanger capable of constituting a seal by packing for forming a tank space without using an integral packing member having a complicated shape. .

In order to achieve the above object, in the invention according to claim 1, a plurality of tubes (12) through which a fluid for heat exchange flows,
A core plate member (40) to which one longitudinal end of the tube is connected;
A tank outer shell (44) formed by joining a tank space (22) communicating with the tube to the core plate member;
A tank partition (46) for partitioning the tank space into a first tank space (52) and a second tank space (54);
An outer periphery packing (62) interposed between an outer peripheral end portion (441) formed at the periphery of the tank outer shell portion and the core plate member to prevent fluid from leaking out of the tank space;
A partition packing (64) which is separate from the outer periphery packing and is interposed between the tank partition portion and the core plate member and suppresses the flow of fluid between the first tank space and the second tank space. It equipped with a door,
A fitting groove (461) is formed in the tank partition,
The partition packing has a locking portion (70) fitted in the fitting groove,
The partition packing is characterized in that it is locked to the tank partition portion in a compressed state so that the locking portion is sandwiched between the fitting grooves .

  In this way, since the partition packing is separate from the outer periphery packing, the seal between the tank outer shell and the core plate member, the seal between the tank partition and the core plate member, in short, the seal in the tank space. Can be configured without using the above-described integral packing member.

  In addition, each code | symbol in the parenthesis described in this column and the claim respond | corresponds to each code | symbol described in embodiment mentioned later.

It is a whole block diagram of the heat exchanger 10 in 1st Embodiment. In the heat exchanger 10 of FIG. 1, it is the perspective view showing the tank partition part 46 of the 1st header tank 18, and its vicinity, specifically, the perspective view showing II part of FIG. It is a perspective view showing the external appearance of the outer periphery packing 62 contained in the 1st header tank 18 of FIG. FIG. 4 is a cross-sectional view of the first header tank 18 as seen from the tank longitudinal direction of the tank partition 46 in FIG. 2, that is, a cross-sectional view taken along the line IV-IV in FIG. It is VV sectional drawing of FIG. FIG. 5 is a front view of the partition packing 64 shown in FIG. 4 as a single unit and the partition packing 64 viewed in the same direction as FIG. 4. It is the side view which looked at the partition packing 64 from the arrow AR7 direction in FIG. FIG. 3 is an exploded perspective view showing a tank partition portion 46 and a partition packing 64 of the tank forming member 42 in FIG. 2. FIG. 7 is a diagram for explaining a process in which a partition packing 64 is attached to a tank partition section 46 in the automated assembly process of the first header tank 18 of FIG. 1. FIG. 2 is a diagram showing a series of a plurality of partition packings 64 used in an automated assembly process of the first header tank 18 of FIG. 1. FIG. 2 is an exploded perspective view showing a tank partition portion 46 of the first header tank 18 and the vicinity thereof in the heat exchanger 10 of FIG. 1. FIG. 10 is a diagram corresponding to FIG. 9, for explaining a demerit when the partition packing 64 is not provided with the protruding portion 681. It is the front view which represented the partition packing 64 of 2nd Embodiment alone, Comprising: It is a figure equivalent to FIG. FIG. 14 is a side view of the partition packing 64 seen from the direction of the arrow AR14 in FIG. 13 and corresponds to FIG. It is the front view which represented the partition packing 64 of other embodiment (5) single-piece | unit, Comprising: It is a figure equivalent to FIG. 15 is a side view of the partition packing 64 as viewed from the direction of the arrow AR16 and corresponds to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
A heat exchanger 10 shown in FIG. 1 is mounted in an engine room of a vehicle, and is used as a radiator for a water-cooled intercooler that cools intake air of the engine, for example. In short, it is a vehicle heat exchanger. In the heat exchanger 10, engine cooling water is used as a heat medium. That is, the heat medium for the heat exchanger 10 is a liquid. The heat exchanger 10 has a lower water temperature and a lower flow rate than the main radiator for cooling the engine, and the circulation of the cooling water in the heat exchanger 10 is performed by, for example, an electric water pump.

  In FIG. 1, an arrow DR1 represents the vertical direction of the vehicle on which the heat exchanger 10 is mounted, that is, the vehicle vertical direction DR1, and the upper side of FIG. An arrow DR2 represents the left-right direction of the vehicle, that is, the vehicle width direction DR2. Further, an arrow DR3 in FIG. 4 represents the front-rear direction of the vehicle, that is, the vehicle front-rear direction DR3. Further, the tubes 12 and the fins 14 are displayed in FIG. 1 with a reduced number in order to make the display of FIG. 1 easier to see.

  As shown in FIG. 1, the heat exchanger 10 includes a core portion 16 including a plurality of tubes 12 and fins 14, and first and second header tanks 18 that are assembled and arranged at both ends of the core portion 16. 20. When the first header tank 18 and the second header tank 20 are not particularly distinguished, they are simply represented as header tanks 18 and 20.

  The plurality of tubes 12 are tubes through which cooling water, which is a fluid for heat exchange, circulates, and in this example, are formed in a straight line and arranged in parallel to each other. The plurality of tubes 12 are formed in a flat shape, and are arranged so that the major axis direction thereof coincides with the air flow direction, that is, the flow direction of the external fluid.

  The fins 14 are formed in a wave shape and are joined to flat surfaces on both sides of the tube 12, and heat exchange between the cooling water flowing through the tube 12 and the air as the external fluid is increased by increasing the heat transfer area with the air. Play a role in promoting. In FIG. 1, the fins 14 are partially illustrated for easy understanding of the drawing, but the fins 14 are provided over the entire length of the tube 12 in the core portion 16.

  The header tanks 18 and 20 have a shape that extends in a direction perpendicular to the tube longitudinal direction at both ends of the tube 12, that is, at one end and the other end. The internal spaces of the header tanks 18 and 20, that is, the tank space 22 of the first header tank 18 and the tank space 24 of the second header tank 20 communicate with the plurality of tubes 12. The first header tank 18 is provided with an inlet portion 26 and an outlet portion 28 for cooling water. The tank space 22 of the first header tank 18 corresponds to the tank space in the present invention.

  The inlet portion 26 is disposed in one end portion of the header tank 18 in the longitudinal direction (hereinafter referred to as the tank longitudinal direction), that is, the upper end portion of FIG. On the other hand, the outlet portion 28 is disposed in the other end portion of the header tank 18 in the longitudinal direction of the tank, that is, the lower end portion of FIG. As can be seen from FIG. 1, the tank longitudinal direction of the header tanks 18 and 20 coincides with the vehicle vertical direction DR1. Further, the tube longitudinal direction coincides with the vehicle width direction DR2.

  Side plates 30 that reinforce the core portion 16 are provided at both ends of the core portion 16 in the arrangement direction of the tubes 12. The side plate 30 extends in parallel with the longitudinal direction of the tube, and both end portions thereof are joined to the header tanks 18 and 20, respectively. The arrangement direction of the tubes 12, that is, the stacking direction is the vertical direction in FIG.

  The first header tank 18 includes a core plate member 40 into which one end in the longitudinal direction of the tube 12 is inserted and connected, and a tank forming member 42 that forms the tank space 22 of the first header tank 18 together with the core plate member 40. have. Specifically, the tank forming member 42 includes a tank outer shell portion 44 that forms an outer shell of the tank space 22. The tank outer shell portion 44 is joined to the core plate member 40 to form the tank space 22. The core plate member 40 of the first header tank 18 corresponds to the core plate member in the present invention.

  The core plate member 40 is made of, for example, an aluminum alloy and is formed by pressing or the like. The tank forming member 42 is made of a resin such as PA resin, and is formed by injection molding or the like. As shown in FIG. 2, which is a perspective view showing the II part of FIG. 1, the tank forming member 42 is joined to the core plate member 40 by crimping the core plate member 40. Specifically, the protruding piece 401 formed on the core plate member 40 is pressed against the tip end portion 441 on the core plate member 40 side of the tank outer shell portion 44, in other words, the tank outer shell portion 44. It is plastically deformed so as to be pressed against the outer peripheral end 441 formed at the periphery of the outer periphery. As a result, the tank forming member 42 is caulked and fixed to the core plate member 40.

  As shown in FIG. 1, the second header tank 20 has an aluminum alloy core plate member 48 and a resin tank forming member 50 in the same manner as the first header tank 18 described above. The plate member 48 and the tank forming member 50 are joined together by caulking.

  As shown in FIGS. 1 and 2, the first header tank 18 is provided with a tank partition 46 that partitions the tank space 22 into an inlet side space 52 and an outlet side space 54. That is, the tank forming member 42 includes a tank partition 46 in addition to the tank outer shell 44. The tank partition 46 is formed in a flat plate shape extending in a direction orthogonal to the tank longitudinal direction. The tank partition 46 is formed by being integrally formed with the tank outer shell 44 by injection molding or the like. Further, the tank partitioning portion 46 is disposed in the central portion of the first header tank 18 in the tank longitudinal direction. The inlet side space 52 of the first header tank 18 corresponds to the first tank space in the present invention, and the outlet side space 54 of the first header tank 18 corresponds to the second tank space in the present invention. Conversely, the inlet side space 52 may correspond to the second tank space in the present invention, and the outlet side space 54 may correspond to the first tank space in the present invention.

  As shown in FIG. 1, the inlet side space 52 communicates with the inlet portion 26, and the outlet side space 54 communicates with the outlet portion 28. Further, the inlet side space 52 communicates with the first tube group 56, and the outlet side space 54 communicates with the second tube group 58. The first tube group 56 is a group of tubes 12 in which cooling water flows from the first header tank 18 to the second header tank 20 among the plurality of tubes 12, and the second tube group 58 is the cooling water. A collection of tubes 12 flowing from the second header tank 20 to the first header tank 18. Further, the first tube group 56 is disposed above the tank partition 46 in the vehicle vertical direction DR1, while the second tube group 58 is disposed below the tank partition 46. .

  The second header tank 20 is not provided with a partition. Accordingly, the tank space 24 of the second header tank 20 is configured as one space and communicates with both the first tube group 56 and the second tube group 58.

  The dashed arrows in FIG. 1 schematically show the flow direction of the cooling water in the heat exchanger 10. That is, when the cooling water flows into the inlet portion 26 from the inflow pipe connected to the inlet portion 26 of the heat exchanger 10 as indicated by the arrow ARin, the inlet portion 26 → the inlet side space 52 in the heat exchanger 10. → The first tube group 56 → the tank space 24 of the second header tank 20 → the second tube group 58 → the outlet side space 54 → the outlet portion 28 in order of U-turn and flow. Then, as indicated by an arrow ARout, the gas flows out from the outlet portion 28 to the outflow pipe connected to the outlet portion 28.

  Due to the flow of the cooling water, the inlet side space 52 of the first header tank 18 is a distribution space for distributing the cooling water to the first tube group 56. On the other hand, the outlet side space 54 of the first header tank 18 is a collective space for collecting cooling water flowing out from the second tube group 58. Further, the tank space 24 of the second header tank 20 is a passage space through which the cooling water flowing out from the first tube group 56 flows to the second tube group 58.

  Next, the sealing structure of the joint portion between the core plate member 40 and the tank forming member 42 in the first header tank 18 will be described. As shown in FIG. 2, the first header tank 18 includes an outer periphery packing 62 and a partition packing 64 in order to improve water tightness at a joint portion between the core plate member 40 and the tank forming member 42.

  The outer periphery packing 62 is an elastic member made of rubber or the like. The outer peripheral packing 62 has a shape along the outer peripheral end 441 of the tank outer shell portion 44. For example, as shown in FIG. 3 which is a perspective view of the outer peripheral packing 62 alone, the outer peripheral packing 62 has an annular shape. 2 and 4, the outer peripheral packing 62 is interposed between the outer peripheral end 441 of the tank outer shell portion 44 and the core plate member 40. 4 is a cross-sectional view taken along the line IV-IV in FIG.

  And since the protrusion piece 401 of the core plate member 40 is plastically deformed and crimped, the outer peripheral packing 62 is compressed between the outer peripheral end 441 and the core plate member 40. . The outer periphery packing 62 prevents the cooling water from leaking out of the tank space 22 by being compressed in this way.

  The partition packing 64 is a separate packing member from the outer periphery packing 62, and is an elastic member formed of, for example, a mold and made of rubber or the like. As shown in FIG. 5, which is a VV cross-sectional view in FIG. 4, the partition packing 64 is interposed between the tank partition 46 and the core plate member 40. The partition packing 64 is compressed by the tank partition 46 and the core plate member 40 in the tube longitudinal direction, that is, in the direction of the arrow DR2 in FIG. Thereby, the partition packing 64 suppresses the circulation of the cooling water between the inlet side space 52 and the outlet side space 54.

  Since the partition packing 64 is separated from the outer periphery packing 62, for example, in FIG. 4, a communication gap CR 1 is generated between the partition packing 64 and the outer periphery packing 62. Accordingly, in the first header tank 18, a slight circulation of the cooling water occurs between the inlet side space 52 and the outlet side space 54, but the fluid in any of the spaces 52 and 54 is the cooling water and is common. Therefore, there is no problem in the function of the first header tank 18.

  Specifically, as shown in FIG. 6 showing the partition packing 64 alone and FIG. 7 as viewed from the direction of the arrow AR7 in FIG. It consists of and.

  The packing main body portion 66 has a shape that can fill a gap between the tank partition portion 46 and the core plate member 40 at a portion where the partition packing 64 in the first header tank 18 is provided. For example, one end 661 of the packing main body 66 on the core plate member 40 (see FIG. 5) side is formed according to the surface shape of the core plate member 40 on the tank space 22 side. Further, the other end 662 of the packing main body 66 is formed in accordance with the shape of the edge 462 (see FIG. 8) of the tank partition 46.

  The gripping portion 68 is a handle portion gripped when the partition packing 64 is locked to the tank partitioning portion 46, and forms a pair as shown in FIG. As shown in FIGS. 6 and 7, the locking portion 70 is provided in a groove 72 formed between the pair of gripping portions 68.

  In order to explain the functions of the gripping portion 68 and the locking portion 70, a method of assembling the first header tank 18 will be described. When the first header tank 18 is assembled, the partition packing 64 is moved in the direction of the arrow AR01 as shown in FIG. 8 which is an exploded perspective view in the vicinity of the tank partition 46. That is, the partition packing 64 is fitted into the tank partition 46 such that the flat tank partition 46 is inserted into the groove 72 (see FIG. 7) between the pair of grips 68. At the same time, the locking portion 70 (see FIG. 6) of the partition packing 64 is fitted into the fitting groove 461 formed in the tank partition portion 46 in order to lock the partition packing 64 to the tank partition portion 46. .

  Specifically, in FIG. 8, the partition packing 64 is fitted in the direction of the arrow AR01 until the other end 662 (see FIG. 6) of the packing body 66 is pressed against the end edge 462 of the tank partition 46. Further, since the width wd1 (see FIG. 6) of the locking portion 70 is formed slightly larger than the groove width of the fitting groove 461 into which the locking portion 70 is fitted, the fitting of the partition packing 64 to the tank partition portion 46 is performed. Later, the fitting groove 461 is compressed so as to sandwich the locking portion 70. Therefore, the partition packing 64 is locked so as not to be easily detached from the tank partition portion 46.

  For example, if the first header tank 18 is assembled in an automated line, as shown in FIG. 9, after the gripping portion 68 of the partition packing 64 is gripped by the robot chuck 200, the partition packing 64 is moved in the direction of the arrow AR01. Moved. At this time, since the pair of protrusions 681 protruding in the thickness direction of the tank partition 46 and the partition packing 64, that is, in the direction of the arrow ARth, are formed at the distal end portion of the grip 68, the robot chuck 200 is engaged with the protrusion 681. Stopped. Therefore, the protrusion 681 serves as a stopper that holds the gripping position of the robot chuck 200 when the partition packing 64 is locked to the tank partition 46 as indicated by an arrow AR01. In other words, it is a stopper that prevents the gripping position from shifting. The arrow ARth direction is the same direction as the vehicle vertical direction DR1 shown in FIG. 2 in the first header tank 18. FIG. 9 is a view for explaining a process in which the partition packing 64 is attached to the tank partition 46.

  When the robot chuck 200 grips the partition packing 64 in the automation line, it is necessary to align a plurality of partition packings 64 before assembly in order to enable the robot chuck 200 to sequentially grip. . Therefore, in the assembly process of the first header tank 18, as shown in FIG. 10, the plurality of partition packings 64 are connected to each other via the connecting portion 74. That is, the plurality of partition packings 64 are connected to each other in one direction. For example, the plurality of partition packings 64 are connected to each other via a connecting portion 74 in a part of the protruding portion 681.

  Then, one partition packing 64 is separated from the series of partition packings 64, and the separated partition packing 64 is attached to the tank partition 46. For example, separation of the partition packing 64 may be performed by cutting all the connecting portions 74 in advance after installing a series of partition packings 64. Alternatively, every time the robot chuck 200 grips one partition packing 64, the partition packing 64 to be gripped next may be separated.

  A state in which the partition packing 64 is locked to the tank partition 46 through such a process, that is, a state in which the partition packing 64 and the tank partition 46 are integrated is shown in a part of FIG. In the assembly process of the first header tank 18, when the partition packing 64 is locked to the tank partition 46 as described above, the partition packing 64 is then locked to the tank partition 46 as shown in FIG. In this state, the tank forming member 42 is attached to the core plate member 40 via the outer periphery packing 62 as indicated by an arrow AR02. Then, in a state where the outer peripheral end 441 of the tank outer shell portion 44 is pressed against the core plate member 40 via the outer peripheral packing 62, the protruding piece 401 of the core plate member 40 is placed on the outer peripheral end 441 of the tank outer shell portion 44. A caulking process is performed in which plastic deformation is performed so as to press. As a result of the assembly of the first header tank 18 in this way, the vicinity of the tank partition 46 of the first header tank 18 is as shown in FIG.

  In FIG. 11, a part of the outer periphery packing 62 is extracted and shown. Further, as can be seen from FIG. 11, before the tank forming member 42 is attached to the core plate member 40, the tube 12 is joined to the core plate member 40 in advance by brazing.

  As described above, according to the present embodiment, the outer periphery packing 62 interposed between the outer peripheral end 441 of the tank outer shell portion 44 and the core plate member 40, the tank partition portion 46, the core plate member 40, and the like. The partition packing 64 interposed therebetween is a separate part.

  Therefore, the seal between the tank outer shell portion 44 and the core plate member 40 and the seal between the tank partition portion 46 and the core plate member 40, in other words, the seal in the first header tank 18, the outer periphery packing 62 and the partition packing 64. It is possible to configure without using an integrated packing member integrated with each other.

  Moreover, since the outer periphery packing 62 and the partition packing 64 are separate parts, the outer periphery packing 62 has the same shape as that for the heat exchanger in which the tank space is not partitioned. For example, it has the same shape as the outer periphery packing for the second header tank 20 in which the tank space 24 is not partitioned. Further, since the partition packing 64 is a remarkably small component as compared with the outer periphery packing 62, even if its shape is complicated, the influence on the component cost is small. On the other hand, if an integrated packing member in which the outer periphery packing 62 and the partition packing 64 are integrated is used, the integrated packing member has a complicated shape due to the integration. .

  In addition, the integral packing member having the complicated shape is substantially the same size as the outer periphery packing 62, and thus is a much larger part than the partition packing 64. Therefore, the total cost including the component costs of the separate outer peripheral packing 62 and the partition packing 64 is lower than that of the integral packing member. Therefore, it is possible to suppress the high cost due to the shape of the outer periphery packing 62 and the partition packing 64 for forming the tank space 22.

  In addition, according to the present embodiment, the partition packing 64 is locked to the tank partition portion 46. Therefore, if the partition packing 64 is attached to the tank partition portion 46 in advance, the tank partition portion 46 is attached after the attachment. The first header tank 18 can be assembled in the same manner as a header tank that does not have, for example, the second header tank 20. Therefore, there is an advantage that the assembly process of the first header tank 18 can be easily made common to the assembly process of the header tank that does not have the tank partition 46, for example, the assembly process of the second header tank 20.

  Further, according to the present embodiment, the gripping portion 68 of the partition packing 64 is formed with a stopper, that is, a protruding portion 681 that prevents the gripping position from shifting when the partition packing 64 is locked to the tank partition portion 46. Yes. Therefore, when the partition packing 64 is assembled to the tank partition 46 as shown in FIG. 9, it is possible to easily grip a fixed position in the grip 68. In addition, it is possible to easily confirm whether or not an appropriate position in the grip portion 68 is gripped.

  Therefore, for example, when the robot chuck 200 grips the partition packing 64 and assembles it to the tank partition 46 as shown in FIG. 9, a displacement of the assembly of the partition packing 64 with respect to the tank partition 46 is prevented, and the first header tank The production quality of 18 is improved.

  For example, as illustrated in FIG. 12, if the protruding portion 681 is not provided in the gripping portion 68 of the partition packing 64, the position at which the robot chuck 200 grips the partition packing 64 is likely to vary every time it is gripped. Further, during the operation of fitting the partition packing 64 to the tank partition 46 as indicated by the arrow AR01, the resistance to be fitted is generated in a direction parallel to the arrow AR01, so that the robot chuck 200 holds the partition packing 64. The position is easy to shift. Further, there is a demerit that it cannot be easily confirmed whether or not the robot chuck 200 is gripping an appropriate position in the grip portion 68.

  Further, according to the present embodiment, when the partition packing 64 is gripped and transported by the robot chuck 200, for example, the tip portion of the robot chuck 200 that contacts the protrusion 681 of the partition packing 64 is the protrusion 681 of the partition packing 64. Therefore, it is possible to prevent the partition packing 64 from dropping during conveyance and to prevent the gripping position from shifting.

  Further, when the locking portion 70 of the partition packing 64 is fitted into the fitting groove 461 of the tank partition portion 46, the tip portion of the robot chuck 200 is locked to the protruding portion 681 of the partition packing 64. It is easy to prevent displacement of the partition packing 64 with respect to the robot chuck 200. Therefore, it is possible to attach the partition packing 64 to the tank partition portion 46 at an appropriate position and with an appropriate fitting force.

  Further, according to the present embodiment, the tank partition 46 is formed by being integrally formed with the tank outer shell 44 by injection molding or the like. Accordingly, when the tank partitioning portion 46 and the tank outer shell portion 44 are not integrally formed, for example, compared with the case where the tank partitioning portion 46 is fitted and fixed to the tank outer shell portion 44, etc. There is no circulation of cooling water at the joint portion of the portion 46 to the tank outer shell portion 44. Therefore, the circulation amount of the cooling water that slightly circulates between the inlet side space 52 and the outlet side space 54 in the first header tank 18 can be reduced.

  Further, according to the present embodiment, in the assembly process of the first header tank 18, as shown in FIG. 10, the plurality of partition packings 64 are connected to each other in one direction. Then, one partition packing 64 separated from the series of partition packings 64 is attached to the tank partition 46 as shown in FIG. Therefore, the plurality of partition packings 64 can be easily aligned before the partition packing 64 is assembled. That is, it is possible to reduce the alignment man-hours for aligning the plurality of partition packings 64 in advance before the partition packing 64 is assembled.

  Further, since the runner portion necessary for the structure of the mold for forming the partition packing 64 can be the connecting portion 74 shown in FIG. 10, the connecting portion 74 can be provided without adding a special structure to the forming die. .

(Second Embodiment)
Next, a second embodiment of the utility model will be described. In the present embodiment, differences from the first embodiment will be mainly described, and the same or equivalent parts as those in the first embodiment will be omitted or simplified.

  Marks for identifying the partition packing 64 are formed on the partition packing 64 of the present embodiment. This point is different from the first embodiment described above.

  Specifically, the partition packing 64 of the present embodiment has the shape shown in FIGS. FIGS. 13 and 14 correspond to FIGS. 6 and 7 of the first embodiment, respectively, and show the partition packing 64 alone. As shown in FIGS. 13 and 14, the partition packing 64 includes a protrusion 682 that protrudes from the protruding portion 681 in the thickness direction of the partition packing 64, that is, in the arrow ARth direction in FIG. 14.

  Although a total of four convex portions 682 are provided in FIGS. 13 and 14, the number is not limited. For example, the projections 682 are provided on the partition packing 64 so that the number of the projections 682 is different for each type of the partition packing 64 having a different shape or material. Therefore, the convex portion 682 serves as a mark for identifying the partition packing 64.

  This embodiment also has the same effect as the first embodiment described above. In addition, according to the present embodiment, the convex portion 682 that is a mark for identifying the partition packing 64 is formed on the partition packing 64. Therefore, for example, the odd-shaped partition packings 64 that are similar in appearance can be easily distinguished from each other using the convex portion 682 as a mark. That is, there is an advantage that it is easy to prevent erroneous assembly of the first header tank 18.

  In addition, since the convex part 682 is an identification mark of the partition packing 64, it does not affect the sealing performance of the partition packing 64 and does not interfere with the assembly of the first header tank 18. In short, the function of the partition packing 64 is affected. If it is a place where there is no, it may be provided in any place of the partition packing 64.

  Moreover, the convex part 682 may be comprised from a part of runner which connects the partition packing 64 adjacent in the shaping | molding die of the partition packing 64, for example, a part of connection part 74 of FIG.

(Other embodiments)
(1) In the above-described embodiment, the arrow DR1 in FIG. 1 represents the vehicle vertical direction when the heat exchanger 10 is mounted on the vehicle, and the arrow DR2 represents the vehicle width direction. Conversely, the direction of the arrow DR1 is There is no problem even if the direction is the vehicle width direction and the direction of the arrow DR2 is the vehicle vertical direction.

  (2) In the above-described embodiment, FIG. 9 shows a state in which the partition packing 64 is gripped by the robot chuck 200 and attached to the tank partition 46, but the partition packing 64 is attached to the tank partition 46. However, it may be performed manually without using an automatic machine such as a robot. Even in the case of manual operation, the protruding portion 681 of the partition packing 64 can provide the same effects as when the robot chuck 200 is used, for example, the effect of preventing the assembly of the partition packing 64 with respect to the tank partition 46. it can.

  (3) In the above-described embodiment, the tank partitioning portion 46 is formed by being integrally formed with the tank outer shell portion 44 by injection molding or the like. It may be joined to the tank outer shell portion 44 by, for example.

  (4) In the above-described embodiment, after the partition packing 64 is assembled to the tank partition 46, the tank forming member 42 is joined to the core plate member 40. As such, the partition packing 64 is previously connected to the tank partition 46. It is not necessary to be assembled in.

  For example, in the assembly process of the first header tank 18, when the partition packing 64 formed of rubber or the like is placed on the core plate member 40 together with the outer periphery packing 62, and the tank forming member 42 is joined to the core plate member 40, The partition packing 64 may be sandwiched between the tank forming member 42 and the core plate member 40 at the same time as the outer periphery packing 62.

  Alternatively, a liquid packing corresponding to the partition packing 64 may be poured into a predetermined portion of the core plate member 40 where the partition packing 64 is provided. If so, after the liquid packing is solidified, the tank forming member 42 is joined to the core plate member 40 with the liquid packing and the outer peripheral packing 62 sandwiched between the core plate member 40. In this case, the outer periphery packing 62 may be replaced with liquid packing.

  (5) In the second embodiment described above, the mark for identifying the partition packing 64 is specifically a convex portion 682 as shown in FIGS. 13 and 14, but has other shapes. It may be. For example, as shown in FIGS. 15 and 16 corresponding to FIGS. 13 and 14, the mark is a recess 683 in which a part of the protruding portion 681 is recessed in the thickness direction of the partition packing 64, that is, the arrow ARth direction in FIG. 16. It doesn't matter.

  (6) In the above-described embodiment, the cooling water for the engine is used as the heat medium in the heat exchanger 10, but the heat medium for the heat exchanger 10 may be oil or gas. Also good. It is sufficient if the fluid flowing in each of the inlet side space 52 and the outlet side space 54 formed in the first header tank 18 is the same.

  (7) In the above-described embodiment, the heat exchanger 10 is specifically a vehicle radiator, but may be a heater core that heats blown air in a vehicle air conditioner, for example. The heat exchanger 10 may be a heat exchanger with a high water temperature and a large flow rate used for engine cooling.

  (8) In the above-described embodiment, the tank forming member 42 is made of resin, but may be made of metal such as aluminum alloy. If the tank forming member 42 is made of metal, the tank outer shell portion 44 and the tank partition portion 46 may be joined to each other by brazing. Alternatively, the tank outer shell portion 44 and the tank partition portion 46 may be integrally formed by die casting.

  (9) In the above-described embodiment, in the heat exchanger 10, the cooling water flows as indicated by the broken-line arrows in FIG. 1, but there is no limitation on the flow direction of the cooling water. For example, the heat exchanger 10 The cooling water may circulate in the direction opposite to the dashed arrow 1. In other words, contrary to FIG. 1, the cooling water outlet 28 may be disposed above the inlet 26 in the vehicle vertical direction DR1.

  (10) In the above-described embodiment, the tank partitioning portion 46 is disposed in the central portion of the first header tank 18 in the tank longitudinal direction. However, the arrangement position is not limited. It may be arranged at a position biased to one side. That is, the number of tubes 12 connected to the inlet side space 52 of the first header tank 18 may be different from the number of tubes 12 connected to the outlet side space 54.

  In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Yes. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the component, etc., the shape, unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to the positional relationship or the like.

DESCRIPTION OF SYMBOLS 10 Heat exchanger 12 Tube 22 Tank space 40 Core plate member 42 Tank formation member 44 Tank outer shell part 46 Tank partition part 52 Inlet side space (1st tank space)
54 Outlet space (second tank space)
62 outer peripheral packing 64 partition packing 68 gripping portion 441 outer peripheral end portion of tank outer shell portion 681 protruding portion (stopper)
682 Convex (marker)
683 Recess (mark)

Claims (6)

A plurality of tubes (12) through which a fluid for heat exchange flows;
A core plate member (40) to which one longitudinal end of the tube is connected;
A tank outer shell (44) formed by joining a tank space (22) communicating with the tube to the core plate member;
A tank partition (46) for partitioning the tank space into a first tank space (52) and a second tank space (54);
An outer periphery packing (62) interposed between an outer peripheral end portion (441) formed at a peripheral edge of the tank outer shell portion and the core plate member to prevent the fluid from leaking out of the tank space;
It is a separate body from the outer peripheral packing, and is interposed between the tank partition portion and the core plate member, and suppresses the flow of the fluid between the first tank space and the second tank space. A partition packing (64) ,
A fitting groove (461) is formed in the tank partition,
The partition packing has a locking portion (70) fitted in the fitting groove,
The partition packing is locked to the tank partition portion in a compressed state so that the locking portion is sandwiched between the fitting grooves . In the partition packing, a groove (72) into which the tank partition portion is inserted is formed,
The heat exchanger according to claim 1 , wherein the locking portion is provided in the groove of the partition packing . The partition packing includes a gripping portion (68) gripped when being locked to the tank partitioning portion,
The stopper according to claim 1 or 2, wherein a stopper (681) for preventing a shift of a gripping position when the partition packing is locked to the tank partition is formed on the grip. Heat exchanger.   The heat exchanger according to any one of claims 1 to 3, wherein the tank partition part is integrally formed with the tank outer shell part.   The heat exchanger according to any one of claims 1 to 4, wherein a mark (682, 683) for identifying the partition packing is formed on the partition packing. It is a manufacturing method of the heat exchanger as described in any one of Claim 1 thru | or 3, Comprising:
A plurality of the partition packings are connected to each other in one direction, and the manufacturing method includes a step of attaching one partition packing separated from the partition packings to the tank partition part. Method.

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