JPS5926723Y2

JPS5926723Y2 - Enclosure of closed switchboard

Info

Publication number: JPS5926723Y2
Application number: JP4553379U
Authority: JP
Inventors: 興井原; 進津久井
Original assignee: 三菱電機株式会社
Priority date: 1979-04-05
Filing date: 1979-04-05
Publication date: 1984-08-03
Also published as: JPS55145808U

Description

【考案の詳細な説明】この考案は、閉鎖配電盤の函体構造に関するものである
。[Detailed description of the invention] This invention relates to a box structure for a closed switchboard.

一般に閉鎖配電盤は、第１図、第２図に示すように、函
体１、後面カバー２、天井板３、前面扉４から構成され
てむり、函体１は側面板５，６を有する。Generally, a closed switchboard is composed of a box 1, a rear cover 2, a ceiling plate 3, and a front door 4, as shown in FIGS. 1 and 2, and the box 1 has side plates 5 and 6.

な釦、図中７は扉４のヒンジ、８はバンドルを示す。In the figure, 7 indicates the hinge of the door 4, and 8 indicates the bundle.

そしてこのように構成された単位閉鎖配電盤Ａは一般に
第３図のように複数面数列盤に構成されるものである。The unit closed switchboard A constructed in this manner is generally constructed into a multi-sided number row board as shown in FIG.

そこで従来の閉鎖配電盤は列盤にしたとき、第３図、第
４図に示すように側面板同士が互いに密着するようにな
る。Therefore, when the conventional closed switchboards are arranged side by side, the side panels come into close contact with each other as shown in FIGS. 3 and 4.

この場合側面板５，６は感電防止の為に接地する関係上
、金属（主に鉄板）で作られているので、片方の盤内で
火災が発生したとき、熱が伝導により伝達されて類焼す
る可能性が高いものであった。In this case, the side panels 5 and 6 are made of metal (mainly iron plates) because they are grounded to prevent electric shock, so if a fire breaks out in one of the panels, heat will be transferred by conduction and cause a fire. It was highly likely that

この考案は、上記のような従来のものの欠点を除去する
ためになされたもので、函体側面板の周囲一部を残して
中央部を凹部に形成することにより、列盤にしたとき、
隣接盤間に空気層が形成されるようにし、もって盤間の
熱伝達率を下げ、火災の類焼を防ぐことを目的としてい
る。This idea was made to eliminate the drawbacks of the conventional ones as described above, and by leaving a part of the periphery of the side panels of the box and forming a concave part in the center, when stacked side by side,
The purpose is to form an air layer between adjacent panels, thereby lowering the heat transfer coefficient between the panels and preventing the spread of fire.

以下、この考案の一実施例を図について説明する。An embodiment of this invention will be described below with reference to the drawings.

第５図はこの考案による閉鎖配電盤の側面図、第６図は
そのＶｌ−Ｖｌ線の断面図で、函体１の側面には列盤用
締付穴１１を含む全周９を残して中央部１０は凹部に形
成されている。Fig. 5 is a side view of the closed switchboard according to this invention, and Fig. 6 is a cross-sectional view taken along the line Vl-Vl. The portion 10 is formed into a recess.

この様に側面板に凹部が形成されていることにより、第
７図のように列盤にしたとき、その隣接部間には第８図
に示すように空気層１２が形成されることになる。Due to the recesses formed in the side panels in this way, when the boards are arranged side by side as shown in Fig. 7, an air layer 12 is formed between the adjacent parts as shown in Fig. 8. .

以上のようにこの考案によれば、隣接盤間に空気層がで
きるので、盤間の熱伝達率が低下して火災による類焼を
簡単かつ安価な方法で防止し得る効果がある。As described above, according to this invention, since an air layer is formed between adjacent panels, the heat transfer coefficient between the panels is reduced, and it is possible to prevent the spread of fire by a simple and inexpensive method.

[Brief explanation of the drawing]

第１図は従来の閉鎖配電盤の側面図、第２図は第１図の
■−ｌ線の断面図、第３図は列盤にされた閉鎖配電盤の
正面図、第４図は第３図のＩＶ−ＩＶ線の断面図、第５
図はこの考案による閉鎖配電盤の側面図、第６図は第５
図のＩＶ−ＩＶ線の断面図、第７図は列盤にされた閉鎖
配電盤の正面図、第８図は第７図の■−■線の断面図で
ある。図中１は函体、２は後面カバー、３は天井板、４は扉、
５は側面板、６は側面板、９は側面板周囲の凸部、１０
は側面板凹部、１１は列盤締付穴、１２は空隙である。尚、図中同一符号は同−又は相当部分を示す。Fig. 1 is a side view of a conventional closed switchboard, Fig. 2 is a sectional view taken along the ■-l line in Fig. 1, Fig. 3 is a front view of a closed switchboard arranged in rows, and Fig. 4 is the same as Fig. 3. 5th cross-sectional view taken along line IV-IV of
The figure is a side view of a closed switchboard according to this invention, and Figure 6 is a side view of the closed switchboard according to this invention.
FIG. 7 is a front view of a closed switchboard arranged in rows, and FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7. In the figure, 1 is the box, 2 is the rear cover, 3 is the ceiling board, 4 is the door,
5 is a side plate, 6 is a side plate, 9 is a convex part around the side plate, 10
11 is a side plate recess, 11 is a plate tightening hole, and 12 is a gap. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

For closed switchboards that are used in close rows, the central part is recessed, leaving the periphery of the side panels in contact with each other, so that an air layer is formed between adjacent panels when the panels are arranged in rows. A closed switchboard box characterized by: