JP2007240078A - Manufacturing method of heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an inexpensive heat exchanger of high reliability with structure easily manufacturable, while keeping high heat exchanging performance. <P>SOLUTION: This manufacturing method of the heat exchanger comprises fitting a recessed portion 41 formed on a peripheral edge of a back face of a base 40a and a projecting portion 42 formed on a peripheral edge of a back face of a base 40b of an adjacent tube bank block 20b, and injecting an adhesive member 80 onto an outer periphery of a fitting portion 60 to connect the tube bank blocks 20. As the recessed and projecting portions are fitted, and the adhesive member 80 is applied to the outer periphery of the fitting portion 60 for adhesion, the adhesive member 80 does not flow into the heat exchanger from between the tube bank blocks 20, thus the clogging of tubes 50 by the adhesive member 80 can be prevented, the heat exchanger can be easily manufactured, and its reliability can be improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a heat exchanger for a cooling system, a heat dissipation system, a heating system, and the like, and particularly to a method for manufacturing a heat exchanger used in a system that requires compactness.

  Conventionally, this type of heat exchanger is generally composed of tubes and fins. However, in recent years, in order to achieve compactness, the tube diameter and tube pitch are reduced, and the tubes are made dense. It tends to become. As an extreme form thereof, there is one in which the heat exchanging portion is composed only of a very thin tube having a tube outer diameter of about 0.5 mm (for example, see Patent Document 1).

  FIG. 7 is a front view of a conventional heat exchanger described in Patent Document 1, and FIG. 8 is a cross-sectional view taken along line AA of FIG.

  As shown in FIGS. 7 and 8, the conventional heat exchanger has an inlet tank 1 and an outlet tank 2 that are arranged to face each other at a predetermined interval, and a plurality of circular cross-sections between the inlet tank 1 and the outlet tank 2. The core 3 is configured such that an external fluid is circulated through the outside of the tube 3. Water or antifreeze is mainly used as an internal fluid that circulates in the pipe 3, and air is mainly used as an external fluid, and each circulates and performs heat exchange.

And while arrange | positioning the pipe | tube 3 in grid shape, the outer diameter of the pipe | tube 3 shall be 0.2 mm or more and 0.8 mm or less, and the value which remove | divided the pitch of the adjacent pipe | tube 3 by the pipe outer diameter is 0.5 or more. By setting it to 5 or less, it is said that the amount of heat exchange for the power used can be greatly improved.
JP 2001-116481 A

  Although the specific elements and manufacturing method constituting the conventional heat exchanger are not shown, in general, a large number of thin tubes 3 and a large number of fine circular holes on a specific surface are previously opened. There is a method in which the tank 1 and the outlet tank 2 are prepared, both ends of the pipe 3 are inserted into the circular holes of the inlet tank 1 and the outlet tank 2, and the insertion portion of the pipe 3 is bonded to the inlet tank 1 and the outlet tank 2 by welding or the like. Conceivable. However, in order to insert the long and thin pipe 3, the inlet tank 1 and the outlet tank 2 are provided with fine circular holes for inserting the pipe 3 at a predetermined fine pitch, and a very large number of pipes 3 are introduced into the inlet tank 1. The process of inserting and adhering to the tank 1 or the outlet tank 2 is very difficult, and even if the heat exchange performance is high, there is a problem that it is very expensive and has low reliability against leakage.

  An object of the present invention is to solve the above-described conventional problems, and to provide a method of manufacturing a heat exchanger that is extremely easy to manufacture and highly reliable while maintaining extremely excellent heat exchange performance. And

  In order to solve the above-described conventional problems, a method of manufacturing a heat exchanger according to the present invention includes a plurality of tubes in which a pipe is communicated with the through-holes between a plurality of through-holes provided substantially vertically from the surface of the substrate. Convex provided on the periphery of the back surface of the substrate of the tube group block adjacent to the recess provided on the periphery of the back surface of the substrate And a pipe member block connected to each other by applying an adhesive member to the outer periphery of the fitting part.

  As a result, the concave and convex portions are fitted, and the adhesive member is applied and adhered to the outer periphery of the fitting portion, so that the adhesive member does not flow into the heat exchanger from between the tube group blocks. It is possible to prevent clogging of the tube.

  In the heat exchanger manufacturing method of the present invention, a groove constituted by the fitting portion and the substrate is formed on the outer periphery of the fitting portion, an adhesive member is injected into the groove, and the tube group block is connected. It is a thing.

  Thereby, while being able to apply | coat an adhesive member thickly, the contact area of a tube group block and an adhesive member can be enlarged.

  Moreover, the manufacturing method of the heat exchanger of this invention connects the said tube group block which provided the recessed part in the peripheral edge of the back surface of the said board | substrate, and provided the convex part in the peripheral edge of the back surface of the said board | substrate which opposes.

  Thereby, a heat exchanger can be manufactured by connecting one kind of tube group block.

  The method for manufacturing a heat exchanger according to the present invention can provide an easy and reliable heat exchanger.

  According to the first aspect of the present invention, a tube group block including a plurality of tubes in which the inside of a tube communicates with the through hole between the substrates having a large number of through holes and is provided substantially perpendicularly from the surface of the substrate. A plurality of axially connected heat exchangers are fitted to a recess provided on the peripheral edge of the back surface of the substrate and a convex portion provided on the peripheral edge of the back surface of the tube group block adjacent to the heat exchanger. The heat exchanger manufacturing method is characterized in that an adhesive member is applied to an outer peripheral edge and the tube group blocks are connected to each other, the uneven portion is fitted, and the adhesive member is applied to the outer periphery of the fitting portion to be bonded. Therefore, the adhesive member does not flow into the heat exchanger from between the tube group blocks, the tube can be prevented from being clogged by the adhesive member, and can be easily manufactured and the reliability is improved.

  The invention according to claim 2 is the invention according to claim 1, wherein a groove constituted by the fitting portion and the substrate is formed in the outer periphery of the fitting portion, and an adhesive member is injected into the groove, The tube group block is connected, the adhesive member can be applied thickly, the contact area between the tube group block and the adhesive member can be increased, and the reliability can be further improved.

  According to a third aspect of the present invention, in the invention according to the first or second aspect, the tube group block in which a concave portion is provided on a peripheral edge of the back surface of the substrate and a convex portion is provided on a peripheral edge of the back surface of the opposing substrate. The heat exchanger can be manufactured by connecting one type of tube group block, and the heat exchanger can be manufactured more easily.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of a heat exchanger according to Embodiment 1 of the present invention, and FIG. 2 is a side view. FIG. 3 is a sectional view taken along line BB in FIG. FIG. 4 is a front view of a tube group block in the same embodiment. 5 is a perspective view from the direction C in FIG. 4, and FIG. 6 is a perspective view from the direction D in FIG.

  The heat exchanger is manufactured by connecting a heat exchanger unit constituted by connecting the tube group blocks 20 and an inlet tank 30 and an outlet tank 35 at both ends.

  The tube group block 20 is composed of a substrate 40 and a tube 50. A recess 41 is provided on the periphery of the back surface of the substrate 40a, and a protrusion 42 is provided on the periphery of the back surface of the opposing substrate 40b. .

  When connecting the tube group block 20, as can be seen from FIG. 3, the concave portion 41a of the tube group block 20a and the convex portion 42b of the adjacent tube group block 20b are fitted and connected. At this time, a groove 70 is formed from the fitting portion 60, the back surface of the substrate 40 a, and the back surface of the substrate 40 b, and an adhesive member 80 is injected into the groove 70 to bond the tube group block 20. For this reason, the adhesive member 80 does not flow into the heat exchanger from between the tube group blocks 20, and the adhesive member 80 can prevent the pipe 50 from being clogged.

  Further, since the adhesive member 80 is injected into the groove 70, the adhesive member 80 can be held by the groove 70, the adhesive member 80 can be applied thickly, and the contact area between the tube group block 20 and the adhesive member 80 can be increased. Since it can be increased, the reliability is further improved.

  Moreover, since the recessed part 41 is provided in the board | substrate 40a of the tube group block 20, and the convex part 42 fitted to the recessed part 41 is provided in the board | substrate 40b, one type of tube group block 20 is connected and a heat exchanger is comprised. The heat exchanger can be manufactured at a low cost.

  If the adhesive member is a resin material, the adhesive member can be easily and reliably injected by injecting the adhesive member into the groove 70 by injection molding.

  As described above, in the present embodiment, the concave portion 41 is provided on the peripheral edge of the back surface of the substrate 40a, the convex portion 42 is provided on the peripheral edge of the back surface of the opposing substrate 40b, and the convexity of the tube group block 20 adjacent to the concave portion 41 is provided. Since the portion 42 is fitted, the adhesive member 80 is injected into the groove 70 formed by the fitting portion 60 and the substrate 40, and the tube group blocks 20 are connected, the adhesive member is inserted between the tube group blocks 20 into the heat exchanger. 80 does not flow in, the clogging of the tube 50 can be prevented by the adhesive member 80, and the adhesive member 80 can be held by the groove 70, so that the adhesive member 80 can be applied thickly and the tube group block The contact area between the adhesive member 20 and the adhesive member 80 can be increased, and the reliability can be further improved. Moreover, since the recessed part 41 is provided in the board | substrate 40a of the tube group block 20, and the convex part 42 fitted to the recessed part 41 is provided in the board | substrate 40b, one type of tube group block 20 is connected and a heat exchanger is comprised. The heat exchanger can be provided at low cost.

  As described above, the heat exchanger according to the present invention can be realized at low cost while maintaining very excellent heat exchange performance, such as heat exchangers for refrigeration equipment and air conditioning equipment, waste heat recovery equipment, etc. It can also be applied to applications.

The front view of the heat exchanger in Embodiment 1 of this invention Side view of heat exchanger in Embodiment 1 of the present invention BB sectional view of FIG. The front view of the pipe group block in Embodiment 1 of this invention The perspective view from the C direction of FIG. The perspective view from the D direction of FIG. Front view of conventional heat exchanger AA line sectional view of FIG.

Explanation of symbols

20, 20a, 20b Tube group block 40, 40a, 40b Substrate 41, 41a Concave portion 42, 42b Convex portion 50 Tube 60 Fitting portion 70 Groove 80 Adhesive member

Claims (3)

  A heat exchanger in which a plurality of tube group blocks each composed of a plurality of tubes which are communicated with the through-holes between the substrates provided with a large number of through-holes and provided substantially perpendicularly from the surface of the substrate are connected in the tube axis direction Is fitted with a concave portion provided on the peripheral edge of the back surface of the substrate and a convex portion provided on the peripheral edge of the back surface of the substrate of the tube group block, and an adhesive member is applied to the outer peripheral edge of the fitting portion, A method of manufacturing a heat exchanger, comprising connecting the tube group blocks.   The groove formed from the fitting portion and the substrate is formed in the outer periphery of the fitting portion, an adhesive member is injected into the groove, and the tube group block is connected. Manufacturing method of heat exchanger.   3. The heat exchanger according to claim 1, wherein a concave portion is provided on a peripheral edge of the back surface of the substrate, and the tube group block provided with a convex portion is provided on the peripheral edge of the back surface of the opposing substrate. Method.

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