JP5082610B2 - Heat exchanger manufacturing method and heat exchanger - Google Patents

Description

  The present invention relates to a method of manufacturing a heat exchanger and a heat exchanger for holding a heat medium pipe that circulates a heat medium for heating or cooling a heat component between a first member and a second member.

  A heat exchanger for cooling thermal components such as a central processing unit of a computer is configured by accommodating a heat medium pipe for circulating a heat medium for cooling such as cooling water inside a plate-like base member, for example. Yes. Various heat exchangers have been proposed for some time. For example, Patent Document 1 discloses a heat exchanger.

  As shown in FIGS. 10A and 10B, the cold plate (heat exchanger) of Patent Document 1 includes aluminum plate members 101 and 102 that sandwich a heat medium pipe from above and below, The lower plate material 101 is formed with a heat medium tube housing groove 103 and concave grooves 104, 104 located on both left and right sides thereof, and the other (upper) plate material 102 is formed with a heat medium tube housing groove 103 and both left and right sides thereof. Positioned ridges 105, 105 are formed. The ridges 105, 105 are formed at positions corresponding to the concave grooves 104, 104 and are inserted into the concave grooves 104, 104. The concave grooves 104 and 104 are formed so as to form a cross-sectional cross-sectional shape so that the distance from each other increases toward the back, and the ridges 105 and 105 are deformed to form the concave grooves 104 and 104. Each is inserted (see FIG. 10B).

Japanese Utility Model Publication No. 54-12371

  However, in the heat exchanger of Patent Document 1, the widths of the concave grooves 104 and the convex stripes 105 are both small, and when the convex stripes 105 are inserted into the concave grooves 104 while being deformed, the convex stripes 105 are in the middle. Since there is a possibility of bending, there is a problem that it is difficult to insert the protrusion 105 into the groove 104. Moreover, since each board | plate material 101,102 was fixed to the up-down direction only by bending and deforming the protruding item | line 105 diagonally, there also existed a problem that the fixing strength of board | plate materials 101,102 was low.

  Accordingly, the present invention has been devised to solve the above-described problems, and provides a heat exchanger manufacturing method and a heat exchanger that each member has high fixing strength and can be easily assembled. Is an issue.

The invention according to claim 1 for solving the above-described problem is a heat exchange in which a heat medium pipe for circulating a heat medium for heating or cooling a heat component is sandwiched and accommodated between a first member and a second member. In the manufacturing method of the container, the first member includes a groove for accommodating the heat medium tube and a convex portion protruding toward the second member, and the convex portion is the first member. The front end portion of the first member is formed along a groove that protrudes from the surface of the second member before being deformed. to, placing the heat medium pipe, a second member having a groove for receiving the heat medium pipe is provided as at the side of the ridge to cover the heating medium tube, the ridge By pressing at least the tip of the plastic and deforming plastically, the tip of the ridge is placed on both sides in the width direction. The heat exchanger manufacturing method is characterized in that the second member is locked to the first member by widening.

According to such a method, when the heat exchanger is formed, it is only necessary to place the heat medium pipe on the first member and provide the second member on the first member to widen the convex portion. Can be assembled. In addition, the second member is locked by widening at least the tip of the convex portion, and a large stress is required to return the deformed portion to the original shape in order to widen the convex portion. The second member can be firmly fixed to the first member. In addition, since the projecting portion is a projecting ridge, a large number of widened portions for locking the second member can be formed, so that the second member can be more firmly fixed to the first member. . Furthermore, since the tip of the ridge before deformation protrudes from the surface of the second member, a load can be applied intensively to the tip of the ridge, making plastic deformation of the ridge easy. It can be carried out.

The invention according to claim 2 is the method for manufacturing a heat exchanger that accommodates sandwich the heat medium pipe for circulating a heat medium for heating or cooling the thermal component with a first member and the second member, the The first member includes a groove for accommodating the heat medium tube and a convex portion protruding toward the second member, and the convex portion is provided along the groove of the first member. A second member provided with a groove for placing the heat medium tube in the groove of the first member and accommodating the heat medium tube, It provided so as to cover the heat medium pipe at the side of the ridge, at least the tip portion of the convex insert the wedge member to the inside of the convex to the first member by causing widening in the width direction on both sides It is a manufacturing method of the heat exchanger characterized by latching said 2nd member.

According to such a method, when the heat exchanger is formed , it is only necessary to place the heat medium pipe on the first member and provide the second member on the first member to widen the convex portion. Can be assembled. In addition, the second member is locked by widening at least the tip of the convex portion, and a large stress is required to return the deformed portion to the original shape in order to widen the convex portion. The second member can be firmly fixed to the first member. In addition, since the projecting portion is a projecting ridge, a large number of widened portions for locking the second member can be formed, so that the second member can be more firmly fixed to the first member. . Furthermore, the ridge can be widened by a simple operation such as inserting the wedge member into the ridge, and the pressing force of the ridge against the second member can be increased, so that the locking force is increased and the fixing strength is further increased. be able to.

The invention according to claim 3 is characterized in that the wedge member is formed integrally with the second member and presses the second member toward the first member. It is a manufacturing method of the heat exchanger of Claim 2 .

  According to such a method, since the second member and the wedge member are integrally formed, the wedge member can be inserted into the ridge simply by installing the second member. Can be assembled easily.

According to a fourth aspect of the present invention, there is provided a heat exchanger in which a heat medium pipe for circulating a heat medium for heating or cooling a heat component is sandwiched between a first member and a second member, and the heat medium pipe is accommodated. A first member having a groove for accommodating the heat medium tube and having a convex portion protruding toward the second member, and a side portion of the convex portion covering the heat medium tube. And a second member provided with a groove for accommodating the heat medium tube, wherein the convex portion is provided along the groove of the first member. is constituted by conditions, in the interior of the convex, wedge member for widening the ridge is inserted, said second member, the at least distal portion of the convex portion by the wedge member the widening deformation portion formed by widened on both sides in the width direction, is engaged with the first member A heat exchanger, characterized in that there.

According to such a structure, while being able to assemble | attach each member easily, the heat exchanger which can fix a 2nd member to a 1st member firmly can be provided. By forming the convex portion as a ridge, it is possible to form a large number of widening deformed portions that lock the second member, so that the second member can be more firmly fixed to the first member. Can be provided. Further, the ridge can be widened by a simple operation such as inserting the wedge member into the ridge, and the pressing force of the ridge against the second member can be increased, so that the locking force is increased and the fixing strength is further increased. be able to.

The invention according to claim 5 is the heat exchanger according to claim 4 , wherein the wedge member is formed integrally with the second member.

  According to such a configuration, since the second member and the wedge member are integrally formed, the wedge member can be inserted into the ridge simply by installing the second member. A heat exchanger that can be easily assembled can be provided.

  According to the present invention, the fixing strength of each member of the heat exchanger is high, and an excellent effect that it can be easily assembled is exhibited.

  A first best mode for carrying out the present invention will be described in detail with reference to the drawings as appropriate. In this embodiment, a heat exchanger manufacturing method and a heat exchanger will be described by taking a cold plate (heat exchanger) that cools thermal components such as a central processing unit of a computer as an example.

  FIG. 1 is a cross-sectional perspective view showing a state before assembly processing of the first embodiment of the heat exchanger according to the present invention. FIG. 2 is a cross-sectional view showing a state after the assembly process of the first embodiment of the heat exchanger according to the present invention. FIG. 3 is a plan view showing a heat exchanger according to the present invention. FIG. 4 is a cross-sectional view showing a heat exchanger according to the present invention. In the present embodiment, the description will be made on the assumption that the thickness direction of the base member is the vertical direction, and the second member is disposed above the first member.

  As shown in FIGS. 3 and 4, the heat exchanger 1 includes a heat medium pipe that circulates a heat medium (for example, cooling water) for heating or cooling (in this embodiment, cooling) a heat component (not shown). 10 is accommodated in a plate-like base member 20.

  The heat medium pipe 10 is made of a metal having high thermal conductivity such as copper. The heat medium pipe 10 has a circular cross section, and includes a heat transfer portion 11 accommodated in the base member 20 and a folded portion 12 curved in a U shape in plan view. The folded portion 12 is formed at a plurality of locations, and the heat medium pipe 10 constitutes a flow path (circulation path) meandering into a shape in which a plurality of S-shapes in plan view are connected as a whole. The folded portion 12 is exposed to the outside from the base member 20. In the present embodiment, the flow path of the heat medium is configured by a single heat medium pipe 10, but is not limited to this, and when the distance of the flow path is long, a plurality of heat medium paths are provided. You may make it comprise with the heat-medium pipe | tube.

  The base member 20 is made of a light metal having high thermal conductivity such as aluminum (pure aluminum) or an aluminum alloy (such as an Al—Mg alloy or an Al—Mg—Si alloy). The base member 20 is a plate-shaped member, and is configured by sandwiching the heat medium pipe 10 from the thickness direction of the base member 20 between the first member 21 and the second member 31. Yes.

  As shown in FIG. 1, the first member 21 is configured by a solid extruded shape extruded in a substantially plate shape, and includes a groove 22 for accommodating the heat medium pipe 10. A projecting portion 23 that protrudes toward the second member 31 (upper side) is provided.

  A plurality of grooves 22 are formed on the inner surface 21 a (upper surface) of the plate-like portion of the first member 21 that is the inside of the base member 20 so as to be parallel to each other with a predetermined interval. The groove 22 extends in the same cross section along the extrusion direction of the extruded profile, and the cross section is opened upward and has a semicircular shape having an inner diameter equivalent to the outer diameter of the heat medium pipe 10. Presents.

  The convex portion 23 is provided at an intermediate portion between the adjacent grooves 22 and 22. In this embodiment, the convex part 23 is comprised by the protruding item | line 24 extended continuously in an extrusion direction, and is extended in the same cross section along the extrusion direction of an extrusion shape material similarly to the groove | channel 22. As shown in FIG. The ridge 24 extends perpendicularly upward from the inner surface 21 a of the first member 21, and the tip 25 (upper end) of the second member 31 inserted between the ridges 24, 24. It is configured to protrude upward from the upper end surface 31b. The surface of the tip 25 of the ridge 24 has a V-shaped cross section. When the tip 25 is compressed and forged downward, the triangular portion at the tip of the ridge 24 is in the width direction of the ridge 24. Plastic deformation so as to widen toward the outside (see FIG. 2).

  Convex ridges 24 a are provided as convex portions 23 a at both ends in the width direction of the base member 20. The ridge 24a has a shape obtained by dividing the ridge 24 between the grooves 22 and 22 in half in the thickness direction, and the tip portion 25a has a triangular shape with the V-shaped half removed. . When the front end portion 25a of the ridge 24a is compressed and forged downward, the triangular portion of the front end portion 25a is plastically deformed so as to expand toward the inner side in the width direction of the base member 20 (see FIG. 2).

  The second member 31 is constituted by a solid extruded shape extruded into a plate shape, and is inserted between the adjacent ridges 24, 24 on the inner surface 21a of the first member 21. These are members that press and fix the heat medium pipe 10 from above at the sides of the ridges 24, 24. The second member 31 has a shape with chamfered corners at both upper ends of a rectangular cross section, and a groove 32 is formed on the inner surface 31a (lower end surface) of the second member 31 which is the inside of the base member 20. Is formed. The groove 32 extends in the same cross section along the extrusion direction of the extruded shape member, and the cross section is opened downward and has a semicircular shape having an inner diameter equivalent to the outer diameter of the heat medium pipe 10. Presents. The groove 32 is combined with the groove 22 of the first member 21 to constitute the heat medium pipe housing part 13 having a circular cross section. The second member 31 has a width equivalent to the distance between the wall surfaces of the adjacent ridges 24, 24. A plurality of second members 31 are formed, and are fitted between the adjacent ridges 24, 24, respectively. The second member 31 has a thickness that is half the overall thickness of the base member 20, and the heat medium pipe 10 is accommodated in the middle portion in the thickness direction of the base member 20. . The chamfered portions 33 at the corners at the upper ends of the second member 31 are chamfered in a triangular shape, and the cross-sectional area thereof is equal to the cross-sectional area of the protruding portion of the tip 25 of the ridge 24.

  Next, the operation of the heat exchanger 1 and its manufacturing method will be described while explaining the manufacturing method of the heat exchanger 1.

  First, as shown in FIG. 1, after the heat medium pipe 10 is placed in the groove 22 of the first member 21, the heat medium pipe 10 is covered between the ridges 24, 24 of the first member 21. The second member 31 is inserted. At this time, the distal end portion 25 of the ridge 24 is in a state of protruding upward from the upper end surface 31 b of the second member 31.

  Next, the tip 25 of the ridge 24 is compressed and forged downward by a press machine (not shown). As a result, as shown in FIGS. 2 and 4, the tip 25 of the ridge 24 is plastically deformed so as to be widened on both sides in the width direction of the ridge 24, thereby forming a widened deformation portion 26. At this time, since the tip 25 of the ridge 24 protrudes upward from the upper end surface of the second member 31, it can be intensively pressed and can be easily plastically deformed. Moreover, since the front-end | tip part 25 of the protruding item | line 24 is formed in the cross-section V-shape, the triangle part of the width direction both sides of the V-shape is pressed to the outer side of the protruding item | line 24 in the width direction because the oblique side is pressed. It is extruded smoothly and widens and plastically deforms. Then, the widened deformation portion 26 that has been widened moves to the chamfered portion 33 of the second member 31 to lock the second member 31 from above.

  Moreover, also in the protruding item | line 24a of the both ends of the base member 20, the front-end | tip part 25a is compressed and forged below with a press. At this time, since the outer end in the width direction of the base member 20 is chamfered in the front end portion 25a, the triangular portion of the front end portion 25a is pressed on the hypotenuse and inward in the width direction of the base member 20. It is pushed out smoothly and widened. Then, the widened deformation portion 26 that has been widened moves to the chamfered portion 33 of the second member 31, contacts the surface of the chamfered portion 33, and locks the second member 31 from above.

  Thus, since the wide deformation part 26 moves to the chamfer 33, the second member 31 is locked from both sides in the width direction of the upper end over the entire length in the extrusion direction. Fixed to. Since a large stress is required to return the plastically deformed widened deformable portion 26 to the original shape, the second member 31 can be firmly fixed to the first member 21, and the first member The fixing strength between 21 and the second member 31 becomes very high.

  Further, since the second member 31 is pressed obliquely downward (indicated by a white arrow in FIG. 2) by the widening deformation portion 26, the inner peripheral surface of the groove 32 is on the heat medium tube 10 side. The adhesion between the inner peripheral surface of the groove 32 and the outer peripheral surface of the heat medium pipe 10 can be enhanced. Furthermore, since the second member 31 is pressed downward (indicated by a black arrow in FIG. 2) by the press machine, the inner peripheral surface of the groove 32 is in close contact with the upper surface of the heat medium pipe 10. Further, since the heat medium pipe 10 is pressed downward by the inner peripheral surface of the groove 32 of the second member 31, the heat medium pipe 10 is pressed against the inner peripheral surface of the groove 22 of the first member 21, Adhesion between the medium tube 10 and the inner peripheral surface of the groove 22 of the first member 21 can be enhanced. Therefore, the improvement of the heat transfer rate of the heat exchanger 1 can be achieved.

  At this time, the ridges 24, 24a themselves do not cause bending deformation, but are crushed by forging, so that the size and shape of the ridges 24, 24a can have a certain degree of freedom. Furthermore, the surface of the base member 20 is easily surfaced by equalizing the cross-sectional area of the protruding portions of the tip portions 25, 25a of the ridges 24, 24a and the cross-sectional area of the chamfered portion 33 as in this embodiment. It can be formed in a single plane.

  As described above, in the manufacturing method according to the present embodiment, the heat medium pipe 10 and the second member 31 are placed on the first member 21, and the ridges 24 are plastically deformed by pressing with a press. The heat exchanger 1 having a high fixing strength between the members can be easily assembled by only a simple process. And since the heat medium pipe | tube 10 can be mounted from the upper part of the 1st member 21, even if it is the heat medium pipe | tube 10 curved intricately, it can set on the 1st member 21 easily. In addition, since the first member 21 and the second member 31 are made of aluminum or an aluminum alloy, the heat exchanger 1 is lightweight and has high strength and rigidity and high heat conductivity. Can be obtained.

  Next, a second best mode for carrying out the present invention will be described. (A) of FIG. 5 is sectional drawing which showed the state before the assembly | attachment process of 2nd embodiment of the heat exchanger which concerns on this invention, (b) is the 2nd of the heat exchanger which concerns on this invention. It is sectional drawing which showed the state after the assembly | attachment process of embodiment.

  As shown in FIG. 5, in the heat exchanger 2 according to this embodiment, the protrusion 52 arranged on the inner surface 51 a of the first member 51 has a base end portion 53 that is wider than the width of the tip end portion 54. It is characterized by being formed in a tapered shape having a large width. Tapered portions 55 formed at the base end portion 53 of the ridge 52 are formed symmetrically on both sides in the width direction of the ridge 52. The taper portion 55 is formed at a height of about half to two-thirds of the ridge 52 from the base end portion 53, and is formed so that the width increases toward the lower portion (base end portion 53 side). Yes. The lower end of the inclined surface of the tapered portion 55 is located in the vicinity of the groove 22 on the inner surface 51 a of the first member 51. Thereby, the width of the insertion space 56 of the second member 71 located between the ridges 52, 52 becomes narrower toward the proximal end portion 53 of the ridge 52. On the other hand, as for the front-end | tip part 54 of the protruding item | line 52, the surface is comprised by the cross-sectional V character similarly to the protruding item | line 24 of 1st embodiment.

  Convex ridges 52 a are also provided at both ends in the width direction of the base member 20. The ridge 52a has a shape in which the ridge 24 between the grooves 22 and 22 is divided in half in the thickness direction, and the tip end portion 54a has a triangular shape by removing the V-shaped half. . When the distal end portion 54a is compressed and forged downward, the triangular portion of the distal end portion 54a is plastically deformed so as to expand toward the inner side in the width direction of the base member 20 (see FIG. 5B). Further, the tapered portion 55 is formed on the inner side in the width direction of the base member 20 of the ridge 52a. Thereby, the shape between the adjacent ridges 52 and 52 and the shape between the ridges 52 and 52a are the same, and each is bilaterally symmetric.

  The 2nd member 71 is exhibiting the shape which chamfered the protruding corner of the lower both ends of the shape of the 2nd member 31 of a 1st embodiment. A groove 32 is formed in the central portion in the width direction of the inner surface 71a (lower end surface) of the second member 71, as in the first embodiment. The chamfered portions 72 at both lower ends have shapes corresponding to the tapered portions 55 of the ridges 52 and 52a, and the second member 71 is between the adjacent ridges 52 and 52 (52a). The member 51 is received in close contact with the member 51. In addition, since the other structure of the 2nd member 71 is the same as that of the 2nd member 31 of 1st embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The manufacturing method of the heat exchanger 2 according to the present embodiment is basically the same as that of the first embodiment. The heat medium pipe 10 and the second member 71 are placed on the first member 51 and illustrated. Do not press with a press. According to the present embodiment, the following operational effects can be obtained in addition to the operational effects obtained in the first embodiment.

  The convex strip 52 of the first member 51 is formed with a tapered portion 55 that becomes wider toward the proximal end portion 53, and the insertion space 56 for the second member 71 located between the convex strips 52, 52 (52 a). The width becomes narrower toward the proximal end portion 53 of the ridge 52. Therefore, when the second member 71 is placed in the insertion space 56 and pressed from above, the surfaces of the chamfered portions 72 at both lower ends of the second member 71 are inclined by the inclined surfaces of the tapered portion 55 of the ridge 52. Since it is urged to the inside of the insertion space 56 (on the heat medium tube 10 side) (indicated by a hatched arrow in FIG. 5B), the inner peripheral surface of the groove 32 of the second member 71 and heat Adhesiveness with the outer peripheral surface of the medium pipe 10 becomes high, and further improvement in the heat transfer rate of the heat exchanger 2 can be achieved. In the present embodiment, in particular, the lower end of the inclined surface of the tapered portion 55 is located in the vicinity of the groove 22 of the inner surface 51 a of the first member 51, so that the meat around the groove 32 of the second member 71 is The thickness is thin, the portion is easily deformed, and the urging force from the tapered portion 55 to the groove 32 side is easily transmitted. Therefore, the adhesion between the inner peripheral surface of the groove 32 of the second member 71 and the outer peripheral surface of the heat medium pipe 10 can be greatly increased.

  In the present embodiment, the tapered portion 55 has a surface formed in a triangular shape with a flat cross section, but is not limited thereto. For example, if the base end portion 53 side is wide, The surface may be formed in a curved shape.

  Next, a third best mode for carrying out the present invention will be described. FIG. 6A is a cross-sectional view showing a state before assembly processing of the third embodiment of the heat exchanger according to the present invention, and FIG. 6B is a third view of the heat exchanger according to the present invention. It is sectional drawing which showed the state after the assembly | attachment process of embodiment.

  As shown in FIG. 6, the heat exchanger 3 according to this embodiment has a wedge member 90 inserted into the inside of the ridge 58 formed in the first member 57, thereby widening the ridge 58 to increase the width. The second member 73 is configured to be locked. The first member 57 and the second member 73 are made of aluminum (pure aluminum), aluminum alloy (Al—Mg alloy, Al—Mg—Si alloy, etc.) as in the first and second embodiments. ) And the like, and is made of a solid extruded shape extruded by using a metal having a light weight and high thermal conductivity.

  Specifically, a plurality of ridges 58, 58,... Arranged on the inner surface 57a of the plate-like portion of the first member 57 at a predetermined interval are inserted with a wedge having a predetermined depth from the upper end thereof. A groove 59 is formed, and the ridge 58 has a bifurcated shape that branches upward. On both sides of the wedge insertion groove 59, a pair of standing wall portions 59a and 59a standing in parallel with each other are located.

  A groove 22 for accommodating the heat medium pipe 10 is provided on the inner surface 57a of the first member 57 at the intermediate portion between the adjacent ridges 58, 58. Since the groove 22 has the same configuration as that of the first embodiment, the description thereof is omitted.

  Similarly to the second member 31 of the first embodiment, the second member 73 has a shape with chamfered corners at both ends on the upper side of the rectangular cross section, and is a second member that is inside the base member 20. A groove 32 is formed on the inner surface 73a (lower end surface) of 73. Since the groove 32 has the same configuration as that of the first embodiment, the description thereof is omitted. The second member 73 has a width equivalent to the distance between the wall surfaces of the adjacent ridges 58, 58 and is fitted between the adjacent ridges 58, 58. The second member 73 has a thickness that is half the thickness of the base member 20, and the heat medium pipe 10 is accommodated in the intermediate portion in the thickness direction of the base member 20.

  In the second member 73 of the present embodiment, the chamfered portions 74 and 74 at the upper corners of the upper end are chamfered in a triangular shape that is longer than that of the first embodiment. By inserting the wedge member 90 into the wedge insertion groove 59 of the ridge 58 in the chamfered portions 74, 74, the standing wall portion 59 a that is deformed outward is inclined so that the ridge 58 is widened. Become. That is, the wedge member 90 plastically deforms the root portion of the standing wall portion 59a, and the entire standing wall portion 59a tilts outward in the width direction, so that the ridge 58 is widened. The upper end of the standing wall portion 59a has a height located above the upper end surface of the second member 73 inserted between the ridges 58 and 58 before the deformation, and after the inclined deformation, The height of the ridges 58 is determined so that the height is substantially equal to the upper end surface of the member 73. Specifically, the height of the ridge 58 is substantially the same as the vertical length of the side surface including the surface of the chamfered portion 74 of the second member 73.

Convex ridges 58a are also provided at both ends in the width direction of the base member 20. This ridge 58a is
A wedge insertion groove 59 is formed on the inner side in the width direction of the base member 20 with the width of the standing wall portion 59a being wider than the protrusion 58 positioned between the adjacent grooves 22 and 22. Yes. The width and depth (height) of the wedge insertion groove 59 and the standing wall portion 59a are equivalent to those of the ridge 58. A thick wall portion 60 is formed on the end side in the width direction of the base member 20 with respect to the wedge insertion groove 59. The thick wall portion 60 has a thickness (width) that does not deform even when a wedge member 90a described later is inserted into the wedge insertion groove 59. The thick wall portion 60 has an upper end formed at the same height as the upper end surface of the second member 73 inserted between the ridges 58 and 58.

  As with the first member 57 and the second member 73, the wedge member 90 inserted into the wedge insertion groove 59 of the ridge 58 is made of aluminum (pure aluminum) or aluminum alloy (Al—Mg alloy or Al—Mg). -It is comprised with the extrusion-molded solid-shaped extruded material using lightweight and high heat conductive metals, such as Si type alloy. The wedge member 90 has an isosceles trapezoidal cross-sectional shape with a long upper side and a short lower side, and its hypotenuse 91 has the same inclination angle as the surface of the chamfered portion 74 of the second member 73. That is, the oblique sides 91 and 91 of the wedge member 90 are chamfered so as to face the wedge members 90 of the second members 73 and 73 located on both sides of the wedge member 90 when the wedge member 90 is inserted into the wedge insertion groove 59 of the ridge 58. It becomes parallel to the surface of the parts 74 and 74. The length of the hypotenuse 91 of the wedge member 90 is equal to the depth of the wedge insertion groove 59. The upper end of the wedge member 90 becomes the same height as the upper end surface of the second member 73 inserted between the ridges 58 and 58 when the wedge member 90 is inserted into the wedge insertion groove 59. ing.

  The wedge member 90a to be inserted into the wedge insertion groove 59 of the convex ridge 58a at the end has a cross-sectional shape in which one oblique side 91 portion of the wedge member 90 is cut out at a right angle from the end of the lower side. When the wedge member 90a is inserted, the hypotenuse 91 portion is directed to the standing wall portion 59a, and the right-angle portion is directed to the thick wall portion 60 side.

  Next, while explaining the manufacturing method of the heat exchanger 3 configured by assembling the heat medium pipe 10, the first member 57, the second member 73, and the wedge members 90, 90a, the heat exchanger 3 and its manufacture The operation of the method will be described.

  First, as shown in FIG. 6A, after the heat medium pipe 10 is placed in the groove 22 of the first member 57, heat is generated between the ridges 58 and 58 (58 a) of the first member 57. The second member 73 is inserted so as to cover the medium tube 10. Then, after setting the wedge member 90 (90a) in the wedge insertion groove 59 of the ridge 58 (58a), the wedge member 90 (90a) is pressed downward by a press machine (not shown), so that the inside of the wedge insertion groove 59 Push to insert.

  At this time, as shown in FIG. 6B, the oblique sides 91, 91 of the wedge member 90 are formed on the wall surfaces of the standing wall portions 59 a, 59 a on both sides of the wedge insertion groove 59. Since the wedge member 90 is pushed in while abutting, the standing wall portions 59a and 59a are pushed and spread outward along the oblique sides 91 and 91 outward in the width direction of the ridges 58 to become the widened deformation portions 61, and the ridges 58 Will be plastically deformed to widen. The standing wall 59a (widening deformed portion 61) pushed outward is moved to the chamfered portion 74 of the second member 73, contacts the surface of the chamfered portion 74, and locks the second member 73 from above. Will be.

  Here, the height of the ridge 58 is determined so that the upper end of the standing wall portion 59a becomes substantially the same height as the upper end surface of the second member 73 after the inclined deformation. Since the height is also the same as the upper end surface of the second member 73, the surface of the base member 20 is substantially flush. And the corner | angular part of the front-end | tip part of the standing wall part 59a will protrude a little from the surface of the 2nd member 73, However It compresses and forges to the 2nd member 73 with a press machine. The surface can be formed flush, and the thermal conductivity of the heat exchanger 3 can be increased. In addition, when the standing wall part 59a is pushed outward, the upper end part may be inclined in advance so that the upper end part of the standing wall part 59a is horizontal.

  Further, in the ridges 58a at both ends of the base member 20, the wedge member 90a is pushed in while the oblique side 91 on one side of the wedge member 90a abuts against the wall surface of the standing wall 59a inside the wedge insertion groove 59. The portion 59a is pushed and expanded along the oblique side 91 outward in the width direction of the ridge 58a (inside the base member 20), and plastically deforms so that the ridge 58a is widened. At this time, when the hypotenuse 91 on one side of the wedge member 90a presses the standing wall 59a, the wedge member 90a receives a reaction force from the standing wall 59a and presses the thick wall 60 outward. However, since the thick wall part 60 has sufficient thickness, it does not deform | transform and the external shape of the base member 20 does not deform | transform. The standing wall 59a (widening deformed portion 61) pushed outward is moved to the chamfered portion 74 of the second member 73, contacts the surface of the chamfered portion 74, and locks the second member 73 from above. Will be.

Here, the height of the ridge 58 is determined so that the upper end of the standing wall portion 59a becomes substantially the same height as the upper end surface of the second member 73 after the inclined deformation, and the thick wall portion 60 is The upper end of the second member 73 is formed to be lower than the standing wall 59 a so that the upper end of the second member 73 is the same as the upper end surface of the second member 73. Since it becomes the same, the surface can be formed flush with both ends of the base member 20 and the thermal conductivity of the heat exchanger 3 can be further enhanced.

  As described above, the second member 73 is locked from both upper ends over the entire length in the extrusion direction by the movement of the standing wall portion 59a to the chamfered portion 74 to become the widened deformable portion 61. It is securely fixed to 57. The standing wall portion 59a is fixed by the wedge members 90 and 90a, and a large stress is required to return the standing wall portion 59a to the original shape. Therefore, the second member 73 is attached to the first member 57. It can be firmly fixed, and the fixing strength between the first member 57 and the second member 73 becomes very high.

  Further, the second member 73 is pressed diagonally downward (indicated by a white arrow in FIG. 6B) by the standing wall portion 59a, so that the inner peripheral surface of the groove 32 is a heat medium. It is urged | biased by the pipe | tube 10 side, and can improve the adhesiveness of the inner peripheral surface of the groove | channel 32, and the outer peripheral surface of the heat-medium pipe | tube 10. Further, since the second member 73 is pressed downward (indicated by a black arrow in FIG. 6B) by the press machine, the inner peripheral surface of the groove 32 is in close contact with the upper surface of the heat medium pipe 10. To do. Further, since the heat medium tube 10 is pressed downward by the inner peripheral surface of the groove 32 of the second member 73, the heat medium tube 10 is pressed against the inner peripheral surface of the groove 22 of the first member 57, Adhesion between the medium tube 10 and the inner peripheral surface of the groove 22 of the first member 57 can be enhanced. Therefore, the improvement of the heat transfer rate of the heat exchanger 3 can be achieved.

  As described above, in the manufacturing method of the present embodiment, the heat medium pipe 10 and the second member 73 are placed on the first member 57, and the wedge insertion grooves 59 of the ridges 58 and 58 a of the first member 57. The heat exchanger 3 having a high fixing strength between the members can be easily obtained by simply setting the wedge members 90, 90a on the plate and pressing the pressing members with a pressing machine to plastically deform the ridges 58, 58a. Can be assembled. In particular, since the ridges 58, 58a are widened using the wedge members 90, 90a, the pressing force of the ridges 58, 58a against the second member 73 can be increased, so that the locking force is high and fixed. The strength becomes very high. In addition, since the heat medium pipe 10 can be placed from the upper part of the first member 57, even the heat medium pipe 10 that is curved in a complicated manner can be easily set on the first member 57. In addition, since the first member 57 and the second member 73 are made of aluminum or an aluminum alloy, the heat exchanger 3 is light and has high strength and rigidity and high heat conductivity. Can be obtained.

  Next, a fourth best mode for carrying out the present invention will be described. FIG. 7A is a cross-sectional view showing a state before assembly processing of the fourth embodiment of the heat exchanger according to the present invention, and FIG. 7B is a fourth view of the heat exchanger according to the present invention. It is sectional drawing which showed the state after the assembly | attachment process of embodiment.

  As shown in FIG. 7, the heat exchanger 4 according to the present embodiment is characterized in that portions corresponding to the second member 73 and the wedge members 90, 90a of the third embodiment are integrally formed. To do. The portions corresponding to the second member 73 and the wedge members 90, 90a of the third embodiment have the same configurations as those of the third embodiment, and thus the same reference numerals are given and description thereof is omitted. Moreover, in this embodiment, since the 1st member 57 is the structure similar to 3rd embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  The second member 73 and the wedge members 90, 90 a are connected and integrated by a connecting plate 75 at an upper portion thereof, and constitute an integrated member 76. The integrated member 76 is a solid extruded shape that is formed by extrusion using a lightweight and highly heat conductive metal such as an aluminum alloy (such as an Al—Mg alloy or an Al—Mg—Si alloy). Configured.

  According to the present embodiment, the following operational effects can be obtained in addition to the operational effects similar to those of the heat exchanger 3 of the third embodiment. Since the second member 73 and the wedge members 90 and 90a are formed as the integrated member 76, the heat medium pipe 10 is placed on the first member 57, and the integrated member 76 is mounted thereon. Since it only has to be placed, the processing step before pressing is greatly simplified. And after that, the same effect as 3rd embodiment can be acquired by pressing the integrated member 76 with the press which is not shown in figure. Further, in the heat exchanger 4, the rigidity of the entire heat exchanger 4 is enhanced by the integrated member 76.

  Next, a fifth best mode for carrying out the present invention will be described. FIG. 8 is a cross-sectional perspective view showing a state before the assembly process of the fifth embodiment of the heat exchanger according to the present invention. FIG. 9 is a plan view showing a fifth embodiment of the heat exchanger according to the present invention.

  As shown in FIG. 8, the heat exchanger 5 according to the present embodiment is configured by a cylindrical body 28 in which the convex portions 23 of the first member 27 are not continuous convex strips but are formed at a predetermined interval. ing. The convex portion 23 is disposed at an intermediate portion between the grooves 22 and 22 formed in the same manner as in the first embodiment, and a plurality of the convex portions 23 are formed at predetermined intervals along the groove 22 (see FIG. 9). . The convex part 23 is orthogonally extended upward from the inner surface 27 a of the first member 27, and a distal end part 29 (upper end part) thereof is disposed on the first member 27. It is comprised so that it may protrude upwards rather than the upper end surface 34b of 34. The surface of the tip portion 29 of the convex portion 23 is formed in a funnel shape whose inner diameter is reduced downward, and when the tip portion 29 is compressed and forged downward, the funnel-like portion of the tip portion is formed. It is plastically deformed so as to widen toward the radially outer side of the convex portion 23 (see FIG. 9). The convex portion 23 is configured separately from the plate-like portion 27b of the first member 27, and is a flat circular hole formed on the surface of the plate-like portion 27b (the inner surface 27a of the first member 27). The bottom part of the cylindrical body 28 is inserted and fixed to 27c. The cylindrical body 28 is fixed to the plate-like portion 27b by a fixing method such as adhesion, welding, or caulking, and the first member 27 is integrally formed. In addition, in this embodiment, although the convex part 23 and the plate-shaped part 27b are comprised by the different body, you may form these integrally by processes, such as cutting out.

  The second member 34 has a planar outer shape equivalent to that of the first member 27, and is disposed on the upper portion of the inner surface 27 a of the first member 27 at the height position of the side portion of the convex portion 23. It is a member that presses and fixes the medium tube 10 from above. In the second member 34, a groove 32 having the same configuration as that of the first embodiment is formed on the inner surface 34 a (lower end surface) of the second member 34 that is the inside of the base member 20. Further, the second member 34 has a plurality of through holes 35 through which the convex portions 23 penetrate at positions corresponding to the convex portions 23 of the first member 27. The through-hole 35 has a tapered portion 35a whose diameter increases toward the upper portion at the upper end portion. The tip portion 29 of the deformed convex portion 23 is moved to the taper portion 35a. The second member 34 has a thickness that is half the thickness of the base member 20, and the heat medium pipe 10 is accommodated in the middle portion of the base member 20 in the thickness direction. The volume of the tip portion 29 of the convex portion 23 protruding upward from the upper end surface 34 b of the second member 34 and the volume of the tapered portion 35 a of the through hole 35 are substantially the same.

  Similarly to the first embodiment, the heat exchanger 5 including the first member 27, the second member 34, and the heat medium tube 10 having the above-described configuration is also provided in the groove 22 of the first member 27 in the heat medium tube. After placing 10, the second member 34 is placed on the upper part so as to cover the heat medium pipe 10. At this time, since the second member 34 is a single-piece component, the processing step before pressing is greatly simplified. And the front-end | tip part 29 of the convex part 23 is compressed and forged below with the press machine which is not shown in figure. As a result, as shown in FIG. 9, the tip portion 29 of the convex portion 23 is plastically deformed so as to widen to become a widened deformed portion 29a. At this time, since the front end portion 29 of the convex portion 23 is formed in a funnel shape, the front end portion 29 of the convex portion 23 is smoothly moved radially outward by pressing the funnel-shaped oblique side portion. To be expanded and plastically deformed. Then, the widening deformed portion 29a widened at the tip portion 29 of the convex portion 23 moves to the tapered portion 35a of the second member 34, contacts the surface of the tapered portion 35a, and engages the second member 34 from above. Will stop.

  Thus, since the wide deformation part 29a moves to the taper part 35a, since the 2nd member 34 is latched from the upper side by the wide deformation part 29a, it is fixed to the 1st member 27 reliably. Since a large stress is required to return the plastically deformed widened deformable portion 29 a to its original shape, the second member 34 can be firmly fixed to the first member 27.

  Further, since the second member 34 is pressed obliquely downward by the widening deformation portion 29a, the inner peripheral surface of the groove 32 is urged toward the heat medium tube 10 side, and the inner peripheral surface of the groove 32 is Adhesiveness with the outer peripheral surface of the heat-medium pipe | tube 10 can be improved. Furthermore, since the second member 34 is pressed downward by the press machine, the inner peripheral surface of the groove 32 is in close contact with the upper surface of the heat medium pipe 10. Further, since the heat medium pipe 10 is pressed downward by the inner peripheral surface of the groove 32 of the second member 34, the heat medium pipe 10 is pressed against the inner peripheral surface of the groove 22 of the first member 27, Adhesion between the medium tube 10 and the inner peripheral surface of the groove 22 of the first member 27 can be enhanced. Therefore, the improvement of the heat transfer rate of the heat exchanger 5 can be achieved.

  In addition, in this embodiment, the same effect as the first embodiment can be obtained.

  As mentioned above, although several embodiment of this invention was described, this invention is not limited to the said embodiment, A design change is possible suitably in the range which does not deviate from the meaning. For example, you may make it form the convex part 23 of 5th embodiment in the shape of a truncated cone which diameter expands, so that it goes to the lower part.

It is a section perspective view showing the state before the assembly processing of the first embodiment of the heat exchanger concerning the present invention. It is sectional drawing which showed the state after the assembly | attachment process of 1st embodiment of the heat exchanger which concerns on this invention. It is the top view which showed 1st embodiment of the heat exchanger which concerns on this invention. It is sectional drawing which showed 1st embodiment of the heat exchanger which concerns on this invention. (A) is sectional drawing which showed the state before the assembly | attachment process of 2nd embodiment of the heat exchanger which concerns on this invention, (b) is 2nd embodiment of the heat exchanger which concerns on this invention. It is sectional drawing which showed the state after the assembling process. (A) is sectional drawing which showed the state before the assembly | attachment process of 3rd embodiment of the heat exchanger which concerns on this invention, (b) is 3rd embodiment of the heat exchanger which concerns on this invention. It is sectional drawing which showed the state after the assembling process. (A) is sectional drawing which showed the state before the assembly | attachment process of 4th embodiment of the heat exchanger which concerns on this invention, (b) is 4th embodiment of the heat exchanger which concerns on this invention. It is sectional drawing which showed the state after the assembling process. It is the cross-sectional perspective view which showed the state before the assembly | attachment process of 5th embodiment of the heat exchanger which concerns on this invention. It is the top view which showed 5th embodiment of the heat exchanger which concerns on this invention. (A) is sectional drawing which showed the state before the assembly process of the conventional heat exchanger, (b) is sectional drawing which showed the state after the assembly process of the conventional heat exchanger.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger 10 Heat-medium pipe | tube 21 1st member 22 Groove 23 Projection 23a Projection 24 Projection 24a Projection 25 Tip part 25a Tip part 26 Widening deformation part 31 Second member 32 Groove 33 Chamfer 2 Vessel 51 first member 52 ridge 52a ridge 53 base end 54 tip 54a tip 55 taper 71 second member 3 heat exchanger 57 first member 58 ridge 58a ridge 59 wedge insertion groove 61 Widening deformation part 4 Heat exchanger 5 Heat exchanger 27 First member 29 Tip part 29a Widening deformation part 34 Second member

Claims (5)

In the manufacturing method of the heat exchanger that sandwiches and accommodates the heat medium pipe for circulating the heat medium for heating or cooling the heat component between the first member and the second member,
The first member includes a groove for accommodating the heat medium pipe, and a convex portion protruding toward the second member side,
The convex portion is provided along the groove of the first member, and before the deformation, the convex portion is configured by a convex line formed so as to protrude from the surface of the second member. And
The heat medium pipe is placed in the groove of the first member, and a second member having a groove for accommodating the heat medium pipe is attached to the heat medium pipe at the side of the ridge. The second member is engaged with the first member by enlarging the tip of the ridge on both sides in the width direction by pressing and plastically deforming at least the tip of the ridge. A method of manufacturing a heat exchanger, characterized in that it is stopped. In the manufacturing method of the heat exchanger that sandwiches and accommodates the heat medium pipe for circulating the heat medium for heating or cooling the heat component between the first member and the second member,
The first member includes a groove for accommodating the heat medium pipe, and a convex portion protruding toward the second member side,
The convex portion is constituted by a convex line provided along the groove of the first member,
The heat medium pipe is placed in the groove of the first member, and a second member having a groove for accommodating the heat medium pipe is attached to the heat medium pipe at the side of the ridge. The second member is locked to the first member by covering the ridge and inserting a wedge member inside the ridge and widening at least the tip of the ridge on both sides in the width direction. A method for manufacturing a heat exchanger. The wedge member is formed integrally with the second member,
The method for manufacturing a heat exchanger according to claim 2, wherein the second member is pressed toward the first member. In a heat exchanger that accommodates a heat medium pipe that circulates a heat medium for heating or cooling a heat component sandwiched between a first member and a second member,
The heat medium pipe, a first member provided with a groove for accommodating the heat medium pipe and having a convex portion protruding toward the second member side, and the heat medium at a side portion of the convex portion A second member provided to cover the pipe and provided with a groove for accommodating the heat medium pipe,
The convex portion is constituted by a convex line provided along the groove of the first member,
A wedge member for widening the ridge is inserted into the ridge,
The second member is locked to the first member by a widening deformation portion formed by widening at least the tip of the convex portion on both sides in the width direction by the wedge member. Heat exchanger. The heat exchanger according to claim 4, wherein the wedge member is formed integrally with the second member.

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