JP2011193655A

Movatterモバイル変換

Info

Publication number: JP2011193655A
Application number: JP2010058403A
Authority: JP
Inventors: Sakae Kawashima; 栄川島; Yosuke Matsuno; 洋輔松野
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2010-03-15
Filing date: 2010-03-15
Publication date: 2011-09-29
Anticipated expiration: 2030-03-15
Also published as: JP5495872B2

Abstract

【課題】薄い板厚で機械的強度の向上が図れる金属閉鎖形スイッチギヤの箱体を提供する。
【解決手段】板状の側面板１ａ、１ｂ、背面板４、天井板５、床板６、および正面扉で構成される遮断器や断路器などの電気機器を収納する金属閉鎖形スイッチギヤの箱体であって、少なくとも箱体の両側の側面板１ａ、１ｂの面中央部に、長円状の谷部と山部とが連続して形成された波型部２を設け、軽量化とともに、機械的強度を向上させることを特徴とする。
【選択図】図１To provide a box body of a metal closed switchgear capable of improving mechanical strength with a thin plate thickness.
A metal-enclosed switchgear box for housing electrical devices such as circuit breakers and disconnectors composed of plate-like side plates 1a, 1b, a back plate 4, a ceiling plate 5, a floor plate 6, and a front door. A corrugated portion 2 in which an oval valley and a peak are continuously formed at least in the center of the surface of the side plates 1a and 1b on both sides of the box. It is characterized by improving mechanical strength.
[Selection] Figure 1

Description

Translated fromJapanese

本発明は、遮断器、断路器などの電気機器を収納する金属閉鎖形スイッチギヤの箱体に関する。 The present invention relates to a box body of a metal closed switchgear that houses electrical equipment such as a circuit breaker and a disconnecting switch.

従来、金属閉鎖形スイッチギヤに用いられる遮断器、断路器などの電気機器は、平滑面を有する板状の鋼板を矩形状に組み合せた箱体内に収納され、使用されている（例えば、特許文献１参照。）。 2. Description of the Related Art Conventionally, electrical devices such as circuit breakers and disconnectors used in metal closed type switchgears are housed and used in a box made by combining plate-shaped steel plates having smooth surfaces into a rectangular shape (for example, Patent Documents). 1).

特開２００９−１７７５６号公報（第３ページ、図１）JP 2009-17756 A (Page 3, FIG. 1)

上記の従来の金属閉鎖形スイッチギヤの箱体においては、電気機器が短絡事故を起こし内部アークを発生したとき、その圧力上昇により、膨れたり、折り曲げられたりし易い構造であった。即ち、鋼板の板厚が１〜２ｍｍ程度と薄く平滑面を有しているので、機械的強度には限界があった。 In the case of the above-described conventional metal closed switchgear box, when an electrical device causes a short-circuit accident and an internal arc is generated, the structure is easily swelled or bent due to an increase in pressure. That is, since the plate thickness of the steel plate is as thin as about 1 to 2 mm and has a smooth surface, the mechanical strength has a limit.

なお、鋼板の板厚を例えば５ｍｍ以上に厚くしたり、補強材などで補強したりして機械的強度を向上させることが考えられるが、重量物となる。このため、薄い板厚で機械的強度の向上が図れる箱体が望まれていた。 Although it is conceivable to increase the mechanical strength by increasing the thickness of the steel plate to, for example, 5 mm or more, or by reinforcing it with a reinforcing material or the like, it becomes a heavy article. For this reason, a box which can improve mechanical strength with a thin plate thickness has been desired.

本発明は上記問題を解決するためになされたもので、薄い板厚で機械的強度の向上が図れる金属閉鎖形スイッチギヤの箱体を提供することを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a box body of a metal closed switchgear that can improve mechanical strength with a thin plate thickness.

上記目的を達成するために、本発明の金属閉鎖形スイッチギヤの箱体は、側面板、背面板、天井板、床板、および正面扉で構成される金属閉鎖形スイッチギヤの箱体であって、少なくとも前記側面板の面中央部に波型部を設けたことを特徴とする。 To achieve the above object, a metal closed switchgear box of the present invention is a metal closed switchgear box comprising a side plate, a back plate, a ceiling plate, a floor plate, and a front door. The corrugated portion is provided at least in the center of the surface of the side plate.

本発明によれば、薄い板厚の鋼板に波型部を設けているので、箱体を軽量化することができるとともに、機械的強度の向上を図ることができる。 According to the present invention, since the corrugated portion is provided on the thin steel plate, the weight of the box can be reduced and the mechanical strength can be improved.

本発明の実施例１に係る金属閉鎖形スイッチギヤの箱体の構成の一部を拡大断面して示す斜視図。The perspective view which expands and shows a part of structure of the box of the metal closed type switchgear which concerns on Example 1 of this invention.本発明の実施例２に係る金属閉鎖形スイッチギヤの箱体の構成を示す斜視図。The perspective view which shows the structure of the box of the metal closed type switchgear which concerns on Example 2 of this invention.本発明の実施例３に係る金属閉鎖形スイッチギヤの箱体の構成を示す拡大断面図。The expanded sectional view which shows the structure of the box of the metal closed type switchgear which concerns on Example 3 of this invention.本発明の実施例４に係る金属閉鎖形スイッチギヤの箱体の構成を示す拡大断面図。The expanded sectional view which shows the structure of the box of the metal closed type switchgear which concerns on Example 4 of this invention.

本発明は、鋼板に凹凸状の波型部を設けることにある。以下、図面を参照して本発明の実施例を説明する。 This invention exists in providing a corrugated part of uneven | corrugated shape in a steel plate. Embodiments of the present invention will be described below with reference to the drawings.

先ず、本発明の実施例１に係る金属閉鎖形スイッチギヤの箱体を図１を参照して説明する。図１は、本発明の実施例１に係る金属閉鎖形スイッチギヤの箱体の構成の一部を拡大断面して示す斜視図である。 First, a box body of a metal closed switchgear according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is an enlarged cross-sectional perspective view showing a part of the configuration of a box body of a metal closed switchgear according to Embodiment 1 of the present invention.

図１に示すように、矩形状の箱体を構成する両側の側面板１ａ、１ｂには、上部から下部までの奥行き方向に断面凹凸状の波型部２を設けている。板厚１〜２ｍｍの鋼板を例えばプレス加工し、板面の中央部に長円状の谷部または山部を連続的に設けている。四辺の周辺部は平滑面となっており、四隅がボルト３で図示しない箱体柱に固定されている。 As shown in FIG. 1,corrugated portions 2 having a concavo-convex shape in the depth direction from the upper part to the lower part are provided on theside plates 1 a and 1 b on both sides constituting the rectangular box. A steel plate having a thickness of 1 to 2 mm is pressed, for example, and an oval valley or peak is continuously provided at the center of the plate surface. The periphery of the four sides is a smooth surface, and the four corners are fixed to a box pillar (not shown) with bolts 3.

背面板４、天井板５、床板６、および箱体内を上下に仕切る中間板７も同様に波型部２を設けている。中間板７により、上部室８と下部室９が構成され、遮断器や断路器などの電気機器が収納される。更に、図示しない開閉自在の正面扉も同様に波型部２を設けている。 Theback plate 4, theceiling plate 5, thefloor plate 6, and theintermediate plate 7 that partitions the box body up and down also have thecorrugated portion 2. Theintermediate plate 7 constitutes anupper chamber 8 and alower chamber 9 that house electrical devices such as a circuit breaker and a disconnecting switch. Further, the openable front door (not shown) is similarly provided with acorrugated portion 2.

これにより、各板１ａ、１ｂ、４、５、６、７は、波型部２により機械的強度を向上させることができる。また、側面板１ａ、１ｂ、背面板４などの波型部２は、谷部と山部が上下方向に形成されているので、塵埃が堆積し難くなる。天井板５、床板６、中間板７の波型部２の方向は幅方向、奥行き方向のいずれでもよい。 Thereby, eachboard 1a, 1b, 4, 5, 6, 7 can improve mechanical strength by thewaveform part 2. FIG. Further, thecorrugated portions 2 such as theside plates 1a and 1b and theback plate 4 have valleys and peaks formed in the vertical direction, so that it is difficult for dust to accumulate. The direction of thecorrugated portion 2 of theceiling plate 5, thefloor plate 6, and theintermediate plate 7 may be either the width direction or the depth direction.

ここで、側面板１ａ、１ｂの面積が最も大きいので、少なくとも側面板１ａ、１ｂに波型部２を設けることにより、内部アークが発生したときの圧力上昇による膨らみなどを防止することができる。また、側面板１ａ、１ｂ、背面板４などの周辺部は波型部２を設けず、平滑面としているので、図示しない箱体柱への固定を強固なものにすることができる。 Here, since the area of theside plates 1a and 1b is the largest, by providing thecorrugated portion 2 at least on theside plates 1a and 1b, it is possible to prevent bulging or the like due to a pressure increase when an internal arc is generated. Further, since the peripheral portions such as theside plates 1a and 1b and theback plate 4 are not provided with thecorrugated portion 2 and are smooth surfaces, the fixing to the box pillar (not shown) can be made strong.

上記実施例１の金属閉鎖形スイッチギヤの箱体によれば、箱体を構成する少なくとも側面板１ａ、１ｂに波型部２を設けているので、板厚が薄く軽量化でき、内部事故時や地震時などに耐え得るように機械的強度を向上させることができる。また、波型部２により、表面積が増大するので、放熱効率を向上させることができる。 According to the box body of the metal closed type switchgear of the first embodiment, since thecorrugated portion 2 is provided on at least theside plates 1a and 1b constituting the box body, the plate thickness can be reduced and the weight can be reduced. The mechanical strength can be improved so that it can endure during earthquakes and earthquakes. Moreover, since the surface area is increased by thecorrugated portion 2, the heat radiation efficiency can be improved.

次に、本発明の実施例２に係る金属閉鎖形スイッチギヤの箱体を図２を参照して説明する。図２は、本発明の実施例２に係る金属閉鎖形スイッチギヤの箱体の構成を示す斜視図である。なお、この実施例２が実施例１と異なる点は、波型部の大きさである。図２において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。 Next, a box body of a metal closed switchgear according to a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a perspective view showing a configuration of a box body of a metal closed switchgear according to a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is the size of the corrugated portion. In FIG. 2, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図２に示すように、両側の側面板１ａ、１ｂ、背面板４には、箱体の上下を仕切る中間板７を境として、上部と下部に波型部２をそれぞれ設けている。中間板７の端面と接する各板１ａ、１ｂ、４の部分は、平滑面となっている。 As shown in FIG. 2, theside plates 1a, 1b and theback plate 4 on both sides are provided withcorrugated portions 2 on the upper and lower sides, respectively, with anintermediate plate 7 separating the upper and lower sides of the box. The portions of theplates 1a, 1b, and 4 that are in contact with the end surface of theintermediate plate 7 are smooth surfaces.

上記実施例２の金属閉鎖形スイッチギヤの箱体によれば、実施例１による効果のほかに、中間板７端面と側面板１ａ、１ｂ、背面板４の中間部が接し、上部室８と下部室９間の空気の流れを遮断することができ、各室８、９を独立した空間にすることができる。 According to the box body of the metal closed type switchgear of the second embodiment, in addition to the effects of the first embodiment, the end surface of theintermediate plate 7 is in contact with the intermediate portions of theside plates 1a and 1b and theback plate 4, and theupper chamber 8 The air flow between thelower chambers 9 can be cut off, and thechambers 8 and 9 can be made independent spaces.

次に、本発明の実施例３に係る金属閉鎖形スイッチギヤの箱体を図３を参照して説明する。図３は、本発明の実施例３に係る金属閉鎖形スイッチギヤの箱体の構成を示す拡大断面図である。なお、この実施例３が実施例２と異なる点は、防振ゴムを設けたことである。図３において、実施例２と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。なお、中間板を例にとり説明する。 Next, a box body of a metal closed switchgear according to a third embodiment of the present invention will be described with reference to FIG. FIG. 3 is an enlarged cross-sectional view showing the configuration of the box body of the metal closed switchgear according to the third embodiment of the present invention. The third embodiment differs from the second embodiment in that an anti-vibration rubber is provided. In FIG. 3, the same components as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. An explanation will be given taking the intermediate plate as an example.

図３に示すように、中間板７と固定板１０間には、防振ゴム１１を挟み、固定板１０側からボルト１２を貫通させ、波型部２の谷部でバネ１３を介してダブルナット１４で固定している。固定板１０には、電気機器１５が固定される。ここで、防振ゴム１１を例えば１０％の所定値に圧縮したときの反発力よりも、バネ１３のバネ力を大きくしている。これは、防振ゴム１１による振動吸収効果を保持しながら、防振ゴム１１を強固に固定するためである。 As shown in FIG. 3, ananti-vibration rubber 11 is sandwiched between theintermediate plate 7 and thefixed plate 10, abolt 12 is penetrated from thefixed plate 10 side, and doubled via aspring 13 at the trough of thecorrugated portion 2. It is fixed with anut 14. Anelectric device 15 is fixed to thefixed plate 10. Here, the spring force of thespring 13 is made larger than the repulsive force when the vibration-proof rubber 11 is compressed to a predetermined value of 10%, for example. This is because theanti-vibration rubber 11 is firmly fixed while maintaining the vibration absorption effect of theanti-vibration rubber 11.

上記実施例３の金属閉鎖形スイッチギヤの箱体によれば、実施例２による効果のほかに、電気機器１５の振動を防振ゴム１１で吸収することができる。 According to the box body of the metal closed switchgear of the third embodiment, in addition to the effects of the second embodiment, the vibration of theelectric device 15 can be absorbed by thevibration isolating rubber 11.

上記実施例３では、防振ゴム１１を中間板７に設けることで説明したが、床板、側面板、背面板などに設けることで、箱体全体の振動や騒音を吸収することができる。この場合、固定板１０に電気機器１５などを固定する必要はない。このため、固定板１０を電気機器１５と対向するものと称する。 In the third embodiment, thevibration isolating rubber 11 is provided on theintermediate plate 7. However, the vibration and noise of the entire box can be absorbed by providing theanti-vibration rubber 11 on the floor plate, the side plate, the back plate, and the like. In this case, it is not necessary to fix theelectric device 15 or the like to thefixing plate 10. For this reason, thefixed plate 10 is referred to as facing theelectric device 15.

次に、本発明の実施例４に係る金属閉鎖形スイッチギヤの箱体を図４を参照して説明する。図４は、本発明の実施例４に係る金属閉鎖形スイッチギヤの箱体の構成を示す拡大断面図である。なお、この実施例４が実施例３と異なる点は、化粧板を設けたことである。図４において、実施例３と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。なお、中間板を例にとり説明する。 Next, a metal closed switchgear box according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 4 is an enlarged cross-sectional view illustrating a configuration of a box body of a metal closed switchgear according to a fourth embodiment of the present invention. The fourth embodiment differs from the third embodiment in that a decorative board is provided. In FIG. 4, the same components as those in the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. An explanation will be given taking the intermediate plate as an example.

図４に示すように、中間板７のダブルナット１４側には、平滑面を有する化粧板１６を固定している。なお、化粧板１６は、箱体の外側となる少なくとも正面扉に設けることで、美観性を向上させる。 As shown in FIG. 4, adecorative plate 16 having a smooth surface is fixed to thedouble nut 14 side of theintermediate plate 7. In addition, thedecorative board 16 improves aesthetics by providing at least the front door which becomes the outer side of a box.

上記実施例４の金属閉鎖形スイッチギヤの箱体によれば、実施例３による効果のほかに、箱体の美観性を向上させることができる。 According to the box body of the metal closed switchgear of the fourth embodiment, in addition to the effects of the third embodiment, the aesthetics of the box body can be improved.

１ａ、１ｂ側面板
２波型部
３、１２ボルト
４背面板
５天井板
６床板
７中間板
８上部室
９下部室
１０固定板
１１防振ゴム
１３バネ
１４ダブルナット
１５電気機器
１６化粧板1a,1b Side plate 2Corrugated part 3, 12Bolt 4Back plate 5Ceiling plate 6Floor plate 7Intermediate plate 8Upper chamber 9Lower chamber 10 Fixedplate 11Anti-vibration rubber 13Spring 14Double nut 15Electric device 16 Decorative plate

Claims

Translated fromJapanese

側面板、背面板、天井板、床板、および正面扉で構成される金属閉鎖形スイッチギヤの箱体であって、
少なくとも前記側面板の面中央部に波型部を設けたことを特徴とする金属閉鎖形スイッチギヤの箱体。A metal closed switchgear box composed of a side plate, a back plate, a ceiling plate, a floor plate, and a front door,
A box body of a metal closed type switchgear characterized in that a corrugated portion is provided at least in the center of the surface of the side plate.

側面板、背面板、天井板、床板、正面扉、および箱体の中間部を仕切る中間板で構成される金属閉鎖形スイッチギヤの箱体であって、
少なくとも前記側面板面と前記背面板面とに、前記中間板を境として、それぞれ波型部を設けたことを特徴とする金属閉鎖形スイッチギヤの箱体。A side plate, a back plate, a ceiling plate, a floor plate, a front door, and a box body of a metal closed switchgear composed of an intermediate plate that partitions the middle part of the box body,
A box body of a metal closed type switchgear, wherein corrugated portions are provided at least on the side plate surface and the back plate surface with the intermediate plate as a boundary.

前記波型部を設けた少なくとも前記側面板と、電気機器と対向する固定板間に防振ゴムを挟み、前記側面板と前記固定板間をバネを介したボルトで固定したことを特徴とする請求項１または請求項２に記載の金属閉鎖形スイッチギヤの箱体。 An anti-vibration rubber is sandwiched between at least the side plate provided with the corrugated portion and a fixed plate facing an electric device, and the side plate and the fixed plate are fixed with a bolt via a spring. The box body of the metal closed type switchgear according to claim 1 or 2.

前記防振ゴムの反発力よりも、前記バネのバネ力を大きくしたことを特徴とする請求項３に記載の金属閉鎖形スイッチギヤの箱体。 4. The metal closed switchgear box according to claim 3, wherein the spring force of the spring is made larger than the repulsive force of the vibration-proof rubber.

少なくとも前記正面扉の外側に化粧板を設けたことを特徴とする請求項１乃至請求項４のいずれか１項に記載の金属閉鎖形スイッチギヤの箱体。 The box body of the metal closed switchgear according to any one of claims 1 to 4, wherein a decorative plate is provided at least outside the front door.