JP2019184076A - Process of manufacture of heat transport member - Google Patents

Abstract

To provide a process of manufacture of heat transport member more simply.SOLUTION: One end surface of both end surfaces of a flat holed member having a thickness of several open holes arranged in a row of 3 mm or less thickness is cut alternatively to have a first depth from an end surface and a second depth deeper than the first depth from an end surface, the other end surface is cut in such a way that a partition wall having the first depth at one end surface of the partition wall having several open holes may have a second depth and the partition wall having the second depth at one end surface may have the first depth. In turn, an outer peripheral surface may become a surface having solder material by applying a thin plate having a solder material to at least one surface and gutter-shaped members are assembled to both end surfaces of the perforated flat member and put into a furnace to apply solder to them.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a heat transport member.

  Conventionally, as this type of technology, as for one end face of the both ends of the porous flat tube, the partition wall of the through-hole group is cut off every other line by a predetermined depth, and the other end face is cut into one end face. In contrast, the strips are shifted one by one from each other and cut to a predetermined depth, and both ends are left without crushing at a length of 1 to 3 mm from the deepest portion, and both ends of the flat tube are crushed. A method of manufacturing a plate-type meandering capillary heat pipe by welding and sealing has been proposed (see, for example, Patent Document 1).

JP-A-9-49692

  However, in the above-described technique, both end portions of both end surfaces obtained by cutting out the partition walls of the through-hole group of the porous flat tube by a predetermined depth are crushed, so that the number of through-holes is large and the length of the end surface is long. Sometimes it is necessary to ensure sufficient crushing accuracy. In addition to the crushing of both end faces of the porous flat tube, a welding sealing process is also required. Furthermore, processing for injecting the working liquid is required.

  The main object of the manufacturing method of the heat transport member of the present invention is to provide a method for manufacturing the heat transport member more easily.

  The manufacturing method of the heat transport member of the present invention employs the following means in order to achieve the main object described above.

The method for producing the heat transport member of the present invention comprises:
A method of manufacturing a heat transport member that transports heat,
The partition walls of the plurality of through holes are alternately arranged on one end face of both end faces of a flat perforated flat member having a plurality of through holes arranged in a row using a metal material and having a thickness of 3 mm or less. The first end surface of the plurality of through holes is cut from the first end surface to the second depth deeper than the first depth from the end surface. In the end face cutting step, the partition wall having the first depth is cut to have a third depth, and the partition wall having the second depth at the one end surface is cut to have a fourth depth shallower than the third depth. When,
Out of order with the end face cutting step, using a thin plate formed of the metal material and having a brazing material bonded to at least one surface, the surface to which the brazing material is bonded is defined as an outer peripheral surface, and the outer peripheral surface is the first depth. Forming a bowl-shaped first hook-shaped member that matches the cutting portion of the partition wall that has been cut into a peripheral surface, the surface on which the brazing material is joined using the thin plate as an outer peripheral surface, and the outer peripheral surface at the fourth depth A hook-shaped member forming step of forming a hook-shaped second hook-shaped member that matches the cutting portion of the cut partition wall;
The first hook-like member is placed on the one end face so that the outer peripheral face of the first hook-like member is in close contact with the cut portion of each partition wall cut to the first depth of the one end face of the perforated flat member. The second hook-shaped member is assembled to the other end surface so that the outer peripheral surface of the second hook-shaped member is in close contact with the cutting portion of each partition wall cut to the fourth depth of the other end surface. An assembly process for forming an assembly;
A brazing step of brazing the assembly in a furnace adjusted to a temperature at which brazing with the brazing material is possible;
It is summarized as having.

  In the manufacturing method of the heat transport member of the present invention, with respect to one end surface of both end surfaces of a flat perforated flat member having a thickness of 3 mm or less and having a plurality of through holes arranged in a row using a metal material. Is cut so that the partition walls of the plurality of through holes alternately have a first depth from the end face and a second depth deeper than the first depth from the end face. For the other end face of the both end faces of the perforated flat member, the partition wall having the first depth at one end face of the plurality of through-hole partitions has a third depth and the first end face has a third depth. The partition wall having a depth of 2 is cut so as to have a fourth depth shallower than the third depth. On the other hand, using a thin plate formed of a metal material and having a brazing material bonded to at least one surface, the surface to which the brazing material is bonded is used as the outer peripheral surface, and the outer peripheral surface, in random order, with the cutting of both end surfaces of the perforated flat member. Forms a first bowl-shaped member having a bowl shape that matches the cutting portion of the partition wall cut to the first depth, and the surface to which the brazing material is joined using a thin plate is used as the outer peripheral surface, and the outer peripheral surface is the fourth depth. A hook-shaped second hook-shaped member that matches the cutting portion of the partition wall that has been cut is formed. Next, the first hook-like member is assembled to one end face so that the outer peripheral face of the first hook-like member is in close contact with the cut portion of each partition wall cut to the first depth of the one end face of the perforated flat member. An assembly is formed by assembling the second hook-like member on the other end face so that the outer peripheral face of the second hook-like member is in close contact with the cutting portion of each partition wall cut to the fourth depth of the other end face. The assembly is then brazed in a furnace adjusted to a temperature at which brazing with the brazing material is possible. The plurality of through-holes of the perforated flat member are one sealed zigzag folded flow path in which the cutting part of the partition wall cut to the second depth and the cutting part of the partition wall cut to the third depth serve as the folded part. Form. If a working liquid is injected into this flow path and sealed, a plate-type meandering capillary heat pipe is obtained. In the manufacturing method of the heat transport member of the present invention, the perforated flat member includes the first flange-like member that is aligned with the cutting portion of the partition wall having the outer surface as the outer surface and the outer surface is cut to the first depth. The other end surface of the perforated flat member is a second hook-like member that is assembled to one end surface of the member and has a surface joined with the brazing material as an outer peripheral surface and the outer peripheral surface is aligned with the cutting portion of the partition wall cut to the fourth depth. Therefore, the heat transport member can be more easily manufactured as compared with the case where crushing and welding sealing are required.

  In the manufacturing method of the heat transport member of the present invention, the end face cutting step is a step of cutting the partition wall to be cut to the first depth and the fourth depth so that the cutting portion draws an arc. Also good. The first hook-like member is formed in a hook shape that matches the cutting part of the partition wall cut to the first depth, and the second hook-like member is formed in the hook shape that matches the cutting part of the partition wall cut to the fourth depth. Therefore, the cross section is formed to draw an arc. In this way, by cutting the cutting portion so as to draw an arc, the cutting portion and the outer peripheral side of the first hook-like member or the second hook-like member are compared with the case of cutting in a “U” shape. The contact area can be increased and the adhesion can be improved. As a result, it is possible to increase the bonding strength by brazing between the cutting portion and the first hook-like member or the second hook-like member.

  In the manufacturing method of the heat transport member of the present invention, the end face cutting step is performed such that the outer wall at the one end face of the perforated flat member is cut to the first depth, and the outer wall at the other end face is cut. It is a step of cutting to be the fourth depth, and the hook-like member forming step has a length of both end faces of the perforated flat member with respect to the first hook-like member and the second hook-like member. It is good also as a process of forming so that it may become the same. By doing so, the contact portion between the outer wall and the first hook-like member or the second hook-like member on both end faces of the perforated flat member becomes large, so that the outer wall and the first hook-like member or the second hook-like member are brazed. The bonding strength can be increased. In this case, the end face cutting step is a step of cutting so that the first depth and the fourth depth are the same depth, and the second depth and the third depth are the same depth. In addition, the hook-shaped member forming step may be a step of forming the first hook-shaped member and the second hook-shaped member so as to have the same shape. By so doing, the cutting of one end face of the flat perforated member and the cutting of the other end face can be made the same, so that the heat transport member can be easily manufactured. In addition, since the first bowl-shaped member and the second bowl-shaped member can be formed in the same shape, the types of components can be reduced, and the manufacture of the heat transport member can be facilitated.

  In the method for manufacturing a heat transport member according to the present invention, the flange-shaped member forming step includes the first opening so as to have a supply port aligned with an end portion of the plurality of through holes or a through hole located in the vicinity of the end portions. It may be a step of forming a hook-shaped member and / or the second hook-shaped member. In this way, it is possible to simplify the injection and sealing of the working liquid from the supply port. In this case, the assembly step may be a step of forming the assembly by inserting a pipe into the supply port. If it carries out like this, a working liquid can be easily inject | poured from a pipe and a pipe can be sealed more easily by crushing etc.

  In the manufacturing method of the heat transport member of the present invention, the end face cutting step cuts the outer wall of the one end face of the perforated flat member to a depth shallower than the first depth, and The outer wall is a step of cutting to be the fourth depth, and the hook-like member forming step has a length of the first hook-like member of the two outer walls of the one end face of the perforated flat member. It is formed so as to have the same length as the inner side and to have two connecting holes that match the through-holes at both ends of the one end face at both ends. The hole flat member is formed so as to have the same length as the other end surface, and further, the surface where the brazing material is joined using the thin plate is an outer peripheral surface, and the outer peripheral surface is a cut of the outer wall of the one end surface. Length with a bowl shape that matches the part Forming a third hook-like member having the same length as the one end face, wherein the assembling step includes a step of forming the third hook-like member on a cutting portion of the outer wall of the one end face of the perforated flat member. It is good also as what is a process of assembling | attaching the said 3rd bowl-shaped member to said one end surface so that an outer peripheral surface may closely_contact | adhere, and forming an assembly. In this case, on one end face of the perforated flat member, the first hook-shaped member is assembled on the inner side, and the third hook-shaped member is assembled on the outer side. For this reason, a flow path is formed between the first hook-shaped member and the third hook-shaped member. And the flow path between the 1st bowl-shaped member and the 3rd bowl-shaped member is in the both ends of the several through-holes of a perforated flat member by two connection holes of the both ends of the 1st bowl-shaped member. It communicates with the located through hole. As described above, the plurality of through-holes of the perforated flat member are formed in one zigzag folded shape in which the cutting part of the partition wall cut to the second depth and the cutting part of the partition wall cut to the third depth serve as the folding part. Since a flow path is formed, if a working liquid is injected into this flow path and sealed, a plate-shaped meandering capillary heat pipe with a loop flow path is obtained.

  In the method for manufacturing a heat transport member according to the present invention using the third hook-shaped member, the hook-shaped member forming step is aligned with an end portion of the plurality of through holes or a through hole located in the vicinity of the end portion. It is good also as what is a process of forming the said 2nd bowl-shaped member and / or the said 3rd bowl-shaped member so that it may have a supply port to do. In this way, it is possible to simplify the injection and sealing of the working liquid from the supply port. In this case, the assembly step may be a step of forming the assembly by inserting a pipe into the supply port. If it carries out like this, a working liquid can be easily inject | poured from a pipe and a pipe can be sealed more easily by crushing etc.

It is process drawing which shows an example of the manufacturing method of the heat transport member as one Embodiment of this invention. FIG. 3 is a configuration diagram showing an outline of an example of a configuration of a perforated flat member 22. It is sectional drawing which shows the cross section in the AA surface of the perforated flat member 22 of FIG. It is sectional drawing which shows the cross section in the BB surface of the perforated flat member 22 of FIG. It is sectional drawing which shows the AA surface in FIG. 2 of the perforated flat member 22 in which the cutting of both end surfaces was completed. It is an external view which shows an example of the external appearance of the 1st bowl-shaped member 30a. It is the top view which looked at the 1st bowl-shaped member 30a in FIG. 6 from upper direction. It is an external view which shows an example of the external appearance which looked at the flat surface of the assembly | attachment body from upper direction. It is the side view which looked at the assembly | attachment body of FIG. 8 from the left side. 4 is an external view showing an example of an external appearance of a heat transport member 20. FIG. It is sectional drawing which shows an example of the cross section of CC plane of the heat transport member 20 in FIG. It is sectional drawing which shows an example of the cross section of the DD surface of the heat transport member 20 in FIG. It is sectional drawing which shows an example of the cross section similar to CC cross section in FIG. It is the top view which looked at the 1st bowl member 130a from the upper part.

  Next, the form for implementing this invention is demonstrated. FIG. 1 is a process diagram showing an example of a method for producing a heat transport member as one embodiment of the present invention. In the heat transport member manufacturing method of the embodiment, first, a step of cutting both end faces of the perforated flat member 22 is executed (step S100). FIG. 2 is a configuration diagram showing an outline of an example of the configuration of the perforated flat member 22. 3 is a cross-sectional view showing a cross section of the flat perforated member 22 in FIG. 2 on the AA plane, and FIG. 4 is a cross sectional view showing a cross section of the flat perforated member 22 in FIG. is there. FIG. 5 is a cross-sectional view showing a cross section along the AA plane of the perforated flat member 22 in which the cutting of both end faces in step S100 has been completed.

  The perforated flat member 22 is made of a metal material such as aluminum or stainless steel, and is formed by, for example, extrusion molding, as shown in FIGS. 2 to 4. It is formed as a perforated flat member. In the present embodiment, the plurality of through holes 24 are formed so as to have a square shape with a cross section of 1.5 mm or less per side, but may have a rectangular shape, a circular shape, an elliptical shape, or the like. In the present embodiment, the thickness of the perforated flat member 22 is 3 mm or less, preferably 2 mm or less.

  As shown in FIG. 5, the cutting of the both end surfaces of the perforated flat member 22 is performed on the left end surface (one end surface) in FIG. 5 with the first depth L1 for the plurality of partition walls 26a arranged from the top. The plurality of partition walls 26b between the plurality of partition walls 26a are cut to have a second depth L2 that is deeper than the first depth L1. That is, the partition walls 26a cut by the first depth L1 and the partition walls 26b cut by the second depth L2 are cut alternately. Further, the outer wall of the left end face (one end face) in FIG. 5 is cut to have the first depth L1 similarly to the plurality of partition walls 26a. In the right end face (the other end face) in FIG. 5, the partition wall 26a cut to have the first depth L1 at the left end face (one end face) in FIG. 5 is cut to have the third depth L3. Then, the partition wall 26b cut to the second depth L2 at the left end face (one end face) in FIG. 5 is cut to the fourth depth L4. That is, the other end face is cut so that the partition walls 26a cut by the third depth L3 and the partition walls 26b cut by the fourth depth L4 are alternately arranged. In addition, the outer wall of the right end surface (the other end surface) in FIG. 5 is cut to have the fourth depth L4 similarly to the plurality of partition walls 26b. In the embodiment, the partition walls 26a and 26b and the outer wall are cut so as to have a “U” shape as a whole so that the cutting portion draws an arc. By such cutting, as shown in the figure, the partition wall 26a in which one end face is cut by the first depth L1 and the other end face is cut by the third depth L3, and one end face is cut by the second depth L2. The partition walls 26b having the other end face cut by the fourth depth L4 are alternately arranged. Here, if the first depth L1 and the fourth depth L4 are the same depth, and the second depth L2 and the third depth L3 are the same depth, one end face of the partition wall 26a is the first end face. The other end face was cut by the depth L1 and the other end face was cut by the second depth L2, and one end face of the partition wall 26b was cut by the second depth L2 and the other end face was cut by the first depth L1. It will be a thing.

  In the heat transport member manufacturing method of the embodiment, the step of forming the first hook-like member 30a and the second hook-like member 30b is executed out of order with the step of cutting both end faces of the perforated flat member 22 (step) S110). 6 is an external view showing an example of the external appearance of the first hook-shaped member 30a, and FIG. 7 is a plan view of the first hook-shaped member 30a in FIG. 6 as viewed from above. In this step, a brazing material having a melting point lower than that of the metal material is joined to one surface of the same metal material (for example, aluminum or stainless steel) on which the perforated flat member 22 is formed as the first flange-shaped member 30a. First, the outer peripheral surface is formed on one end surface of the perforated flat member 22 so that the outer peripheral surface (the lower surface in FIG. 6) is a surface to which the brazing material is bonded. It is formed so that the length is the length of one end face of the perforated flat member 22 so as to be a saddle shape (the cross section is “U” shape) that matches the arc of the cutting portion of the partition wall 26a having the depth L1. . Further, the first hook-like member 30a is aligned with the second through hole 24 from the end among the plurality of through holes 24 of the perforated flat member 22 when assembled to one end face of the perforated flat member 22. A through hole 32a (see FIG. 7) is formed in the substrate. On the other hand, as the second flange-shaped member 30b, a clad thin plate material is used so that the outer peripheral surface (the lower surface in FIG. 6) is a surface to which the brazing material is joined, and the outer peripheral surface is the perforated flat member 22. The other end face of the flat member 22 with a hole having a length so as to have a hook shape (cross-sectional “U” shape) that matches the arc of the cutting portion of the partition wall 26b of the fourth depth L4 formed on one end face It is formed to be the same as the length of. Further, the second flange-like member 30b is aligned with the second through-hole 24 from the end among the plurality of through-holes 24 of the perforated flat member 22 when assembled to the other end of the perforated flat member 22. A through hole 32b (see FIG. 7) is formed at the position. Here, if the first depth L1 and the fourth depth L4 are the same depth, and the second depth L2 and the third depth L3 are the same depth, the first flange-shaped member 30a and the second depth The hook-shaped member 30b has the same shape. In addition, as a clad thin plate material, when aluminum is used as a metal material, a brazing material such as an aluminum silicon alloy can be joined to one surface of an aluminum plate material. When stainless steel is used as the metal material, stainless steel is used. Alternatively, a brazing material such as copper or nickel may be bonded to one surface of the plate material, or one surface of the plate material may be plated on stainless steel to form a brazing material.

  Next, one end surface (the left end surface in FIG. 5) of the perforated flat member 22 is in contact with the cutting portion of the partition wall 26a obtained by cutting the first hook-shaped member 30a by the first depth L1. In the other end face (the end face on the right side in FIG. 5), the second flange-like member 30b is attached so that the outer peripheral face thereof contacts the cutting portion of the partition wall 26b cut by the fourth depth L4. And the outer diameter is the diameter of the through-holes 32a and 32b of the 1st bowl-shaped member 30a and the 2nd bowl-shaped member 30b with the same metal material (for example, aluminum, stainless steel, etc.) which formed the perforated flat member 22 The pipe 34 formed to have the same diameter is assembled into the through hole 32a of the first hook-shaped member 30a and the through hole 32b of the second hook-shaped member 30b to form an assembled body (step S120). FIG. 8 shows an external view of the flat surface of the assembled body from above, and FIG. 9 shows an external view of the assembled body of FIG. 8 viewed from the left side.

  Subsequently, a temperature at which the brazing material of the clad thin plate material on which the first hook-like member 30a and the second hook-like member 30b are melted, although the metal material (for example, aluminum, stainless steel, etc.) on which the perforated flat member 22 is formed does not melt. The assembly is placed in a furnace adjusted to brazing (step S130). By such brazing, the contact surface between the outer peripheral surface of the first hook-shaped member 30a and the cutting portion cut at the first depth L1 of the plurality of partition walls 26a on one end surface of the perforated flat member 22 is joined. The contact surface between the outer peripheral surface of the bowl-shaped member 30b and the cut portion cut by the fourth depth L4 of the plurality of partition walls 26b on the other end surface of the perforated flat member 22 is joined. Moreover, the through holes 32a and 32b of the first hook-shaped member 30a and the second hook-shaped member 30b and the pipe 34 are joined. And a working liquid is inject | poured from one pipe 34, both the pipes 34 are sealed using crushing etc. (process S140), and the heat transport member 20 is completed. FIG. 10 is an external view showing an example of the external appearance of the heat transport member 20. 11 is a cross-sectional view showing an example of the cross section of the CC plane of the heat transport member 20 in FIG. 10, and FIG. 12 is a cross section showing an example of the cross section of the DD plane of the heat transport member 20 in FIG. FIG.

  In the completed heat transport member 20, as shown in FIG. 11, the plurality of through-holes 24 are turned portions that are cut by the second depth L <b> 2 of the plurality of partition walls 26 b on the left side in the drawing, and on the right side in the drawing. A cut portion cut by the third depth L3 of the plurality of partition walls 26a serves as a folded portion to form a single closed zigzag flow path, and functions as a plate-type meandering capillary heat pipe.

  In the manufacturing method of the heat transport member of the embodiment described above, one end face is cut by the first depth L1 and the other end face is cut by the third depth L3, and one end face is the second depth. Both end surfaces of the perforated flat member 22 are cut so that the partition walls 26b cut by the length L2 and the other end surface cut by the fourth depth L4 are alternately arranged. On the other hand, each partition wall 26a using the clad thin plate material so that the outer peripheral surface is a surface to which the brazing material is bonded, and the outer peripheral surface is cut to one end surface of the perforated flat member 22 by the first depth L1. The first hook-shaped member 30a is formed so as to match the arc of the cutting portion of the metal, and the outer peripheral surface is a flat surface with a perforated surface using a clad thin plate material so that the outer peripheral surface is a surface to which the brazing material is joined. A second hook-shaped member 30b is formed on the other end surface of the member 22 so as to be aligned with the arc of the cutting portion of each partition wall 26b cut by the fourth depth L4. Then, the first flange-shaped member 30a is assembled to one end surface of the perforated flat member 22 so that the outer peripheral surface thereof is in contact with the cutting portion of the partition wall 26a cut by the first depth L1, and the second flange is mounted on the other end surface. The member 30b is assembled so that its outer peripheral surface is in contact with the cutting portion of the partition wall 26b cut by the fourth depth L4, and the assembled member is put in a furnace adjusted to a temperature at which the brazing material is melted. Attach. As described above, the first flange-like member 30a and the first rib-like member 30a which are aligned with the cutting portion of the partition wall 26a cut to the first depth L1 while the outer peripheral surface is a surface having the brazing material on the perforated flat member 22 subjected to the cutting process. Since it is only necessary to assemble the second flange-shaped member 30b aligned with the cut portion of the partition wall 26b cut to the depth L4 into the furnace, it is simpler than when crushing and welding sealing are required. The heat transport member 20 can be manufactured. Moreover, the pipe 34 is assembled into the through holes 32a and 32b formed in the first and second collar members 30a and 30b to form an assembly and brazed into the furnace, and the working liquid is injected from the pipe 34. Therefore, the working fluid can be easily injected and sealed.

  In the heat transport member manufacturing method of the embodiment, the first depth L1 and the fourth depth L4 are the same depth, and the second depth L2 and the third depth L3 are the same depth. Since the processing of both end faces of the perforated flat member 22 can be made the same, it is easier to manufacture the heat transport member than when both end faces of the perforated flat member 22 are processed differently. Can be. Moreover, since the 1st bowl-shaped member 30a and the 2nd bowl-shaped member 30b can be made into the same shape, the component types of a heat transport member can be decreased, and manufacture of a heat transport member can be made easy. be able to.

  In the manufacturing method of the heat transport member of the embodiment, the first hook-shaped member 30a and the second hook-shaped member are assembled after the first hook-shaped member 30a and the second hook-shaped member 30b are assembled to both end faces of the perforated flat member 22. The pipe 34 is assembled to the through holes 32a and 32b of the 30b to form an assembled body. However, after the pipe 34 is assembled to the through holes 32a and 32b of the first collar member 30a and the second collar member 30b, the first collar member is assembled. 30a and the second hook-shaped member 30b may be assembled to the end surface of the perforated flat member 22.

  In the manufacturing method of the heat transport member of the embodiment, when the through holes 32 a and 32 b of the first hook-shaped member 30 a and the second hook-shaped member 30 b are assembled to the end surface of the hole-shaped flat member 22, Although formed so as to be aligned with the second through-hole 24 from the end among the plurality of through-holes 24, from the most end through-hole 24 or the end of the plurality of through-holes 24 of the perforated flat member 22 It may be formed so as to be aligned with the third through hole 24.

  In the manufacturing method of the heat transport member of the embodiment, the first hook-shaped member 30a and the second hook-shaped member are assembled after the first hook-shaped member 30a and the second hook-shaped member 30b are assembled to both end faces of the perforated flat member 22. Although the pipe 34 is assembled to the through holes 32a and 32b of the 30b to form an assembled body, the pipe 34 may not be assembled. In this case, after brazing, the working liquid may be injected from one of the through holes 32a and 32b, and the through holes 32a and 32b may be closed and sealed. Alternatively, the first hook-like member 30a and the second hook-like member 30b in which the through holes 32a and 32b on both end surfaces of the perforated flat member 22 are not formed may be assembled to form an assembly. In this case, after brazing, a through hole is formed in the first hook-like member 30a, the second hook-like member 30b, or the perforated flat member 22, and the working liquid is injected from the formed through hole and sealed.

  In the manufacturing method of the heat transport member of the embodiment, the cutting portions of the partition walls 26a and 26b of the flat perforated member 22 are cut so as to draw an arc, but each cutting portion draws a smooth arc instead of an arc. It is good also as what is cut. Further, only the cutting part having the first depth L1 or the fourth depth L4 is cut so as to draw an arc or a smooth arc, and the cutting part having the second depth L2 or the third depth L3 is not drawn. It is good also as what cuts. Further, the cutting part having the first depth L1 or the fourth depth L4 may be cut so as not to draw an arc. For example, each cutting portion may be cut into a triangular shape or a “U” shape.

  In the heat transport member manufacturing method of the embodiment, the heat transport member 20 that is a plate-type serpentine capillary heat pipe is manufactured. However, the heat transport member 120 that is a plate-type serpentine capillary heat pipe with a loop flow path is used. It is good also as what manufactures. FIG. 13 is a cross-sectional view showing an example of a cross section similar to the CC cross section in FIG. 10 of the heat transport member 120. FIG. 14 is a plan view of the first hook-like member 130a as seen from above, as in FIG.

  In the cutting of both end faces of the perforated flat member 122 in step S100, as shown in FIG. 13, the left end face (in FIG. 13) of the same perforated flat member 122 as the perforated flat member 22 shown in FIG. On one end face), the plurality of partition walls 126a arranged from the top are cut so that the first depth L1 is deeper than the depth at the time of manufacturing the heat transport member 20, and the space between the partition walls 126a is cut. The plurality of partition walls 126b are cut to have a second depth L2 that is deeper than the first depth L1. The outer wall of the left end surface (one end surface) in FIG. 13 is cut so as to be shallower than the first depth L1. In the right end face (the other end face) in FIG. 13, the partition wall 126a cut to the first depth L1 at the left end face (one end face) in FIG. 13 is cut to the third depth L3. Then, the partition wall 26b cut to the second depth L2 at the left end face (one end face) in FIG. 5 is cut to the fourth depth L4. The outer wall of the right end surface (the other end surface) in FIG. 13 is cut to have a fourth depth L4 as with the plurality of partition walls 126b. Also in this case, the partition walls 126a and 126b and the outer wall are cut so as to have a “U” shape as a whole so that the cutting portion draws an arc.

  In the formation of the pair of members in step S110, three bowl-shaped members of the first bowl-like member 130a, the second bowl-like member 130b, and the third bowl-like member 130c are formed. Although the length of the first hook-shaped member 130a is different from that of the first hook-shaped member 30a, a clad thin plate material is used so that the outer peripheral surface is a surface to which a brazing material is bonded, and the outer peripheral surface is The length of the perforated flat member 122 is flat so that it has a saddle shape (the cross section is “U” shaped) that matches the arc of the cutting portion of the partition wall 126a having the first depth L1 formed on one end surface of the perforated flat member 122. It forms so that it may become the length to the inner side of the outer wall of one end surface of the member 122. Further, as shown in FIG. 14, the end portions of the plurality of through holes 24 of the flat perforated member 22 when assembled to one end face of the perforated flat member 22 at both ends of the first flange-shaped member 130 a. A communication hole 131 communicating with the through hole 24 is formed. Similarly to the second hook-shaped member 30b, the second hook-shaped member 130b uses a clad thin plate material so that the outer peripheral surface is a surface to which a brazing material is bonded, and the outer peripheral surface is a perforated flat member 122. The other end of the perforated flat member 122 has a length that matches the arc of the cutting portion of the partition wall 126b of the fourth depth L4 formed on one end face of It is formed to be the same as the length of the end face (the length to the outside of the outer wall). In addition, the second hook-shaped member 130b is aligned with the second through hole 124 from the end among the plurality of through holes 124 of the perforated flat member 122 when assembled to the other end of the perforated flat member 122. A through hole 132b is formed at the position. Similar to the first hook-shaped member 30a, the third hook-shaped member 130c uses a clad thin plate material so that the outer peripheral surface is a surface to which a brazing material is joined, and the outer peripheral surface is a perforated flat member 122. The length of the one end face of the perforated flat member 122 extends to the outside of the outer wall so that it has a saddle shape (the cross section is “U” shape) that matches the arc of the cutting portion formed on the outer wall of the one end face. The length is formed. In addition, the third hook-shaped member 130c is aligned with the second through-hole 124 from the end among the plurality of through-holes 124 of the perforated flat member 122 when assembled to one end of the perforated flat member 122. A through hole 132c is formed at the position. Here, if the cutting part of the outer wall on one end face of the flat perforated member 122 and the cutting part of each partition wall 126b to be cut to the fourth depth of the other end part have the same depth and the same shape, The hook-shaped member 130b and the third hook-shaped member 130c have the same shape.

  In the assembly in step S120, one end face (the left end face in FIG. 13) of the perforated flat member 122 is cut into each partition wall 126a obtained by cutting the first hook-shaped member 130a by the first depth L1. Assemble the inside of the outer wall so as to be in contact with the portion, and assemble the third flange-like member 130c on the outside so that the outer peripheral surface thereof is in contact with the cutting portion of the outer wall. Further, the second flange-shaped member 130b is assembled to the other end surface (the end surface on the right side in FIG. 13) so that the outer peripheral surface thereof is in contact with the cut portion of the partition wall 126b cut by the fourth depth L4. And the pipe 134 is assembled | attached to the through-holes 132b and 132c of the 2nd collar member 130b and the 3rd collar member 130c, and it is set as an assembly.

  Then, the metal material forming the perforated flat member 122 is not melted, but the brazing material of the clad thin plate material is brazed by placing the assembly in a furnace adjusted to a melting temperature (step S130). By such brazing, the contact surface between the outer peripheral surface of the first flange-shaped member 130a and the cut portion cut by the first depth L1 of the plurality of partition walls 126a on one end surface of the perforated flat member 122 is joined, and the second The contact surface between the outer peripheral surface of the hook-shaped member 130b and the cutting part cut by the fourth depth L4 of the plurality of partition walls 126b on the other end surface of the perforated flat member 122 is joined, and the outer peripheral surface of the third hook-shaped member 130c And the contact surface with the cutting part of the outer wall of one end surface of the perforated flat member 122 are joined. In addition, the through holes 132b and 132c of the second hook-shaped member 130b and the third hook-shaped member 130c and the pipe 134 are joined. Then, the working liquid is injected from one of the pipes 134, and both the pipes 134 are sealed using crushing or the like (Step S140) to complete the heat transporting member 120.

  As shown in FIG. 13, in the heat transport member 120, a flow path is formed between the first hook-shaped member 130a and the third hook-shaped member 130c, and the flow paths are formed at both ends of the first hook-shaped member 130a. The two communication holes 131 communicate with the through holes 124 located at both ends of the plurality of through holes 124 of the perforated flat member 122. As shown in FIG. 13, the plurality of through holes 124 are formed by turning a cut portion cut by the second depth L2 of the plurality of partition walls 126b on the left side in the drawing, and the third depth of the plurality of partition walls 126a on the right side in the drawing. The cut portion cut by the length L3 becomes a folded portion to form a zigzag flow path. For this reason, the heat transport member 120 is a plate-shaped meandering capillary heat pipe with a loop flow path.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to such embodiment at all, In the range which does not deviate from the summary of this invention, it can implement with a various form. Of course.

  The present invention can be used in the heat transport member manufacturing industry and the like.

  20, 120 heat transport member, 22, 122 perforated flat member, 24, 124 through hole, 26, 26a, 26b, 126a, 126b partition, 30a, 130a first hook-like member, 30b, 130b second hook-like member, 130c 3rd rod-shaped member, 32a, 32b, 132b, 132c through-hole, 34, 134 pipe, 131 communication hole.

Claims (8)

A method of manufacturing a heat transport member that transports heat,
The partition walls of the plurality of through holes are alternately arranged on one end face of both end faces of a flat perforated flat member having a plurality of through holes arranged in a row using a metal material and having a thickness of 3 mm or less. The first end surface of the plurality of through holes is cut from the first end surface to the second depth deeper than the first depth from the end surface. In the end face cutting step, the partition wall having the first depth is cut to have a third depth, and the partition wall having the second depth at the one end surface is cut to have a fourth depth shallower than the third depth. When,
Out of order with the end face cutting step, using a thin plate formed of the metal material and having a brazing material bonded to at least one surface, the surface to which the brazing material is bonded is defined as an outer peripheral surface, and the outer peripheral surface is the first depth. Forming a bowl-shaped first hook-shaped member that matches the cutting portion of the partition wall that has been cut into a peripheral surface, the surface on which the brazing material is joined using the thin plate as an outer peripheral surface, and the outer peripheral surface at the fourth depth A hook-shaped member forming step of forming a hook-shaped second hook-shaped member that matches the cutting portion of the cut partition wall;
The first hook-like member is placed on the one end face so that the outer peripheral face of the first hook-like member is in close contact with the cut portion of each partition wall cut to the first depth of the one end face of the perforated flat member. The second hook-shaped member is assembled to the other end surface so that the outer peripheral surface of the second hook-shaped member is in close contact with the cutting portion of each partition wall cut to the fourth depth of the other end surface. An assembly process for forming an assembly;
A brazing step of brazing the assembly in a furnace adjusted to a temperature at which brazing with the brazing material is possible;
The manufacturing method of the heat-transport member which has this. It is a manufacturing method of the heat transport member according to claim 1,
The end face cutting step is a step of cutting so that the cutting part is arcuate for the partition wall to be cut to the first depth and the fourth depth.
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to claim 1 or 2,
In the end face cutting step, the outer wall at the one end face of the perforated flat member is cut to the first depth, and the outer wall at the other end face is cut to the fourth depth. And
The hook-like member forming step is a step of forming the first hook-like member and the second hook-like member so that the length is the same as the length of both end faces of the perforated flat member.
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to claim 3,
The end face cutting step is a step of cutting so that the first depth and the fourth depth are the same depth, and the second depth and the third depth are the same depth,
The hook-shaped member forming step is a step of forming the first hook-shaped member and the second hook-shaped member so as to have the same shape.
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to any one of claims 1 to 4,
The hook-like member forming step includes the first hook-like member and / or the second hook-like shape so as to have a supply port aligned with an end portion of the plurality of through holes or a through hole located in the vicinity of the end portion. A step of forming a member;
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to claim 1 or 2,
In the end face cutting step, the outer wall on the one end face of the perforated flat member is cut to a depth shallower than the first depth, and the outer wall on the other end face is set to the fourth depth. Cutting process,
In the step of forming the hook-shaped member, the length of the first hook-shaped member is the same as the inner length of both outer walls of the one end face of the perforated flat member, and the one end face is at both ends. The second flange-shaped member is formed to have the same length as the other end surface of the perforated flat member. Further, the surface to which the brazing material is joined using the thin plate is an outer peripheral surface, and the outer peripheral surface is a saddle shape that matches the cutting portion of the outer wall of the one end surface, and the length is equal to the length of the one end surface. A step of forming the same third bowl-shaped member,
In the assembling step, the third hook-shaped member is assembled to the one end face so that the outer peripheral surface of the third hook-shaped member is in close contact with the cutting portion of the outer wall of the one end face of the perforated flat member. A step of forming the assembly.
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to claim 6,
The hook-like member forming step includes the second hook-like member and / or the third hook-like shape so as to have a supply port aligned with an end portion of the plurality of through-holes or a through-hole located in the vicinity of the end portion. A step of forming a member;
Manufacturing method of heat transport member. It is a manufacturing method of the heat transport member according to claim 5 or 7,
The assembly step is a step of forming the assembly by inserting a pipe into the supply port.
Manufacturing method of heat transport member.

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