JPS59155717U

JPS59155717U - Heat dissipation device for oil-filled electrical equipment

Info

Publication number: JPS59155717U
Application number: JP5000483U
Authority: JP
Inventors: 茂山田; 一男加藤; 徹後藤
Original assignee: 三菱電機株式会社
Priority date: 1983-04-04
Filing date: 1983-04-04
Publication date: 1984-10-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図〜第５図は従来例を示し、第１図は斜視図、第２
図は要部の拡大斜視図、第３図は要部の断面斜視図、第
４図は上部端面の溶接状態を示す斜視図、第５図は溶接
後のビードの状態を示す側面図、第６図〜第８図はこの
考案の一実施例を示し、第６図は要部の断面斜視図、第
７図は上部端面の間隙が過小の場合のビードの状態を示
す側面図、第８図は上部端面の間隙が適正な場合のビー
ドの状態を示す側面図、第９図〜第１１図は重ね合せ部
の間隙の状態を異にする他の実施例を示す斜視図である
。図において同一符号は同一または相当部分を示し、１は
外箱、３は放熱器、３ｅは重ね合せ部、３ｄは端面、４
は側板、５は油通路、ｇは端面における薄板間の間隙で
ある。Figures 1 to 5 show conventional examples, with Figure 1 being a perspective view and Figure 2 being a perspective view.
The figure is an enlarged perspective view of the main part, Fig. 3 is a cross-sectional perspective view of the main part, Fig. 4 is a perspective view showing the welding state of the upper end surface, Fig. 5 is a side view showing the state of the bead after welding, 6 to 8 show an embodiment of this invention, FIG. 6 is a cross-sectional perspective view of the main part, FIG. 7 is a side view showing the state of the bead when the gap between the upper end faces is too small, and FIG. The figure is a side view showing the state of the bead when the gap between the upper end faces is appropriate, and FIGS. 9 to 11 are perspective views showing other embodiments in which the gap between the overlapping parts is different. In the figures, the same reference numerals indicate the same or equivalent parts, 1 is the outer box, 3 is the radiator, 3e is the overlapping part, 3d is the end face, 4
5 is the side plate, 5 is the oil passage, and g is the gap between the thin plates at the end face.

Claims

[Scope of utility model registration request]

(1) In a heat dissipation device for oil-filled electrical equipment, the heat dissipation device includes a heat dissipator that is formed integrally with a side plate of an outer box and that forms a flow path for circulating insulating oil housed in the outer box, in which an upper part of the heat dissipator is provided. A heat dissipation device for oil-filled electrical equipment, characterized in that a predetermined gap is provided between two thin plates constituting the end face of the lower part, and the gap between the thin plates is sealed by arc welding.

(2) The thickness of the thin plate that makes up the cooler is 0.8 to 1.2r.
wn, and the gap between the thin plates at the end face is at least 0°3.
A heat dissipation device for oil-filled electrical equipment according to claim 1 of the utility model registration claim, characterized in that: rrrm.