JPS63159683U

JPS63159683U -

Info

Publication number: JPS63159683U
Application number: JP5408087U
Authority: JP
Priority date: 1987-04-08
Filing date: 1987-04-08
Publication date: 1988-10-19

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す要部縦断面
図、第２図はそのチユーブプレート１の要部縦断
面斜視略図、第３図は同構造のろう付け前の状態
を示す要部縦断面図、第４図は本考案の第２実施
例の要部を示し、第５図は同第３実施例の要部を
示す。又第６図は本考案の対象の熱交換器の一例
を示す正面図、第７図は従来型ろう付け構造の要
部縦断面図、第８図は他の従来構造の要部縦断面
図。１，２……チユーブプレート、３……チユーブ
、４……凹陥部、５……チユーブ孔、６……フイ
ン、７……フイレツト、８……タンク本体、９…
…サイドメンバー、１０……ろう材。 Fig. 1 is a vertical sectional view of the main part showing the first embodiment of the present invention, Fig. 2 is a schematic longitudinal sectional perspective view of the main part of the tube plate 1, and Fig. 3 is the main part showing the state of the same structure before brazing. A vertical sectional view of FIG. 4 shows a main part of a second embodiment of the present invention, and FIG. 5 shows a main part of a third embodiment of the present invention. Also, FIG. 6 is a front view showing an example of the heat exchanger to which the present invention is applied, FIG. 7 is a vertical cross-sectional view of a main part of a conventional brazed structure, and FIG. 8 is a vertical cross-sectional view of a main part of another conventional structure. . 1, 2...tube plate, 3...tube, 4...recess, 5...tube hole, 6...fin, 7...fillet, 8...tank body, 9...
...Side member, 10...brazing material.

Claims

[Scope of utility model registration request]

A pair of tube plates 1 and 2 that are spaced apart from each other and that the hem of the tank body is fitted to the periphery of each tube plate.
In the brazing structure of the heat exchanger in which both ends of the tube 3 are inserted and the insertion portion is fixed by brazing, a recess 4 larger than the cross section of the tube 3 is formed on the inner surface of one of the tube plates 1. A plurality of tube holes 5 are formed spaced apart from each other and substantially aligned with the cross section of the tube 3, and are bored in each of the recesses 4 from the outer surface side toward the inner surface side. The edges are made to protrude toward the inner surface, and the protrusion height h is made smaller than the depth v of the recess 4, and the brazing material is guided to the recess 4 on at least the inner surface of the tube plate 1. A brazed structure of a heat exchanger characterized by having an insertion portion fixed by brazing.