JP6856352B2

JP6856352B2 - Switch gear

Info

Publication number: JP6856352B2
Application number: JP2016215443A
Authority: JP
Inventors: 俊之植木
Original assignee: Toshiba Corp; Toshiba Infrastructure Systems and Solutions Corp
Current assignee: Toshiba Corp; Toshiba Infrastructure Systems and Solutions Corp
Priority date: 2016-11-02
Filing date: 2016-11-02
Publication date: 2021-04-07
Anticipated expiration: 2036-11-02
Also published as: JP2018074857A

Description

本発明の実施形態は、スイッチギヤに関する。 Embodiments of the present invention relate to switch gears.

従来、開口部が設けられた筐体と、筐体の外側で開口部を開閉可能に覆う蓋と、蓋と一体で閉位置から開位置へ移動し筐体内で生じたガスを冷却する放熱部材と、を備えたスイッチギヤが、知られている。 Conventionally, a housing provided with an opening, a lid that covers the opening openably on the outside of the housing, and a heat radiating member that moves from the closed position to the open position integrally with the lid and cools the gas generated in the housing. And, switch gears with are known.

特開２０１１−２２３７２１号公報Japanese Unexamined Patent Publication No. 2011-223721

この種のスイッチギヤでは、例えば、より不都合が少なく改善された新規な構成が得られれば、好ましい。 In this type of switch gear, for example, it is preferable to obtain a new configuration with less inconvenience and improved.

実施形態のスイッチギヤは、例えば、筐体と、蓋と、袋状部材と、を備える。筐体には、開口部が設けられる。蓋は、筐体の外側に設けられ、開口部を覆う。袋状部材は、少なくとも一部が蓋と筐体との間に設けられるとともに、筐体の外側から開口部を覆う状態に設けられ、筐体内で生じて開口部から流出したガスを導入して膨らむ。前記袋状部材のうち当該袋状部材が膨らんだ場合の頂部となる位置に、当該袋状部材を貫通する逃げ穴が設けられる。 The switch gear of the embodiment includes, for example, a housing, a lid, and a bag-shaped member. The housing is provided with an opening. The lid is provided on the outside of the housing and covers the opening. At least a part of the bag-shaped member is provided between the lid and the housing, and is provided so as to cover the opening from the outside of the housing, and the gas generated in the housing and flowing out from the opening is introduced. Inflate. An escape hole that penetrates the bag-shaped member is provided at a position that becomes the top of the bag-shaped member when the bag-shaped member is inflated.

図１は、第１実施形態のスイッチギヤの蓋が閉位置にある状態での例示的かつ模式的な斜視図である。FIG. 1 is an exemplary and schematic perspective view of the switch gear lid of the first embodiment in a closed position. 図２は、図１のII−II断面図である。FIG. 2 is a sectional view taken along line II-II of FIG. 図３は、第１実施形態のスイッチギヤの蓋が開位置にある状態での例示的かつ模式的な斜視図である。FIG. 3 is an exemplary and schematic perspective view in a state where the lid of the switch gear of the first embodiment is in the open position. 図４は、図３のIV−IV断面図である。FIG. 4 is a sectional view taken along line IV-IV of FIG. 図５は、第２実施形態のスイッチギヤの蓋が閉位置にある状態での例示的かつ模式的な斜視図である。FIG. 5 is an exemplary and schematic perspective view in a state where the lid of the switch gear of the second embodiment is in the closed position. 図６は、第２実施形態のスイッチギヤの蓋が開位置にある状態での例示的かつ模式的な斜視図である。FIG. 6 is an exemplary and schematic perspective view of the switch gear lid of the second embodiment in the open position. 図７は、第３実施形態のスイッチギヤの蓋が閉位置にある状態での例示的かつ模式的な斜視図である。FIG. 7 is an exemplary and schematic perspective view of the switch gear lid of the third embodiment in the closed position.

以下、本発明の例示的な実施形態が開示される。以下に示される実施形態の構成、ならびに当該構成によってもたらされる作用および結果（効果）は、一例である。 Hereinafter, exemplary embodiments of the present invention will be disclosed. The configurations of the embodiments shown below, as well as the actions and results (effects) brought about by the configurations, are examples.

また、以下に開示される複数の実施形態には、同様の構成要素が含まれる。よって、以下では、それら同様の構成要素には共通の符号が付与されるとともに、重複する説明が省略される。なお、以下の各図では、便宜上、互いに直交する三方向が定義されている。Ｘ方向は、筐体２の前後方向に沿い、Ｙ方向は、筐体２の幅方向に沿い、Ｚ方向は、筐体２の高さ方向に沿う。 Also, the plurality of embodiments disclosed below include similar components. Therefore, in the following, common reference numerals will be given to these similar components, and duplicate explanations will be omitted. In each of the following figures, for convenience, three directions orthogonal to each other are defined. The X direction is along the front-rear direction of the housing 2, the Y direction is along the width direction of the housing 2, and the Z direction is along the height direction of the housing 2.

＜第１実施形態＞
図１，２に示されるように、スイッチギヤ１は、例えば、建物の電気室等に設置されており、筐体２と、蓋３と、ヒンジ部４と、袋状部材５と、取付部材６，７（図２参照）と、メッシュ部材１１と、結合具１２と、を備えている。スイッチギヤ１は、遮断器や保護継電器等が金属製の筐体２内に収容された、所謂金属閉鎖形スイッチギヤである。筐体２は、盤や、閉鎖箱等とも称されうる。なお、電気室には、Ｙ方向に一列に並んだ状態で複数の筐体２が設けられうる。筐体２には、例えば、遮断器、計器用変成器等を有し主に電力を受電する受電盤や、遮断器、変流器、零相変流器等を介して負荷供給用のケーブルが引き出されるフィーダ盤、主母線を系統毎に遮断器によって切り分ける母線連絡盤等が含まれる。 <First Embodiment>
As shown in FIGS. 1 and 2, the switch gear 1 is installed in, for example, an electric room of a building, and has a housing 2, a lid 3, a hinge portion 4, a bag-shaped member 5, and a mounting member. It includes 6, 7 (see FIG. 2), a mesh member 11, and a connector 12. The switch gear 1 is a so-called metal closed type switch gear in which a circuit breaker, a protective relay, and the like are housed in a metal housing 2. The housing 2 may also be referred to as a board, a closed box, or the like. In the electric room, a plurality of housings 2 may be provided in a line in the Y direction. The housing 2 has, for example, a circuit breaker, a current transformer for an instrument, and a power receiving panel that mainly receives electric power, and a cable for supplying a load via a circuit breaker, a current transformer, a zero-phase current transformer, and the like. Includes a feeder board from which the power is pulled out, a bus connecting board that separates the main bus for each system with a circuit breaker, and the like.

筐体２は、例えば、Ｘ方向に短い偏平な直方体状の箱型に構成されている。筐体２は、複数の壁部２ａ〜２ｆを有する。壁部２ａおよび壁部２ｂは、いずれも、Ｚ方向と直交する方向（ＸＹ平面）に沿って延びており、Ｚ方向に間隔をあけて互いに平行に設けられている。壁部２ａは、天壁部や上壁部等と称され、壁部２ｂは、底壁部や下壁部等と称されうる。 The housing 2 is, for example, configured in a flat rectangular parallelepiped box shape short in the X direction. The housing 2 has a plurality of wall portions 2a to 2f. Both the wall portion 2a and the wall portion 2b extend along a direction (XY plane) orthogonal to the Z direction, and are provided parallel to each other at intervals in the Z direction. The wall portion 2a may be referred to as a top wall portion, an upper wall portion, or the like, and the wall portion 2b may be referred to as a bottom wall portion, a lower wall portion, or the like.

また、壁部２ｃおよび壁部２ｅは、いずれも、Ｘ方向と直交する方向（ＹＺ平面）に沿って延びており、Ｘ方向に間隔をあけて互いに平行に設けられている。また、壁部２ｄおよび壁部２ｆは、いずれも、Ｙ方向と直交する方向（ＸＺ平面）に沿って延びており、Ｙ方向に間隔をあけて互いに平行に設けられている。壁部２ｃは、前壁部等と称され、壁部２ｅは、後壁部等と称されうる。また、壁部２ｃ〜２ｆは、側壁部や周壁部等とも称されうる。 Further, both the wall portion 2c and the wall portion 2e extend along a direction (YZ plane) orthogonal to the X direction, and are provided in parallel with each other at intervals in the X direction. Further, both the wall portion 2d and the wall portion 2f extend along a direction (XZ plane) orthogonal to the Y direction, and are provided in parallel with each other at intervals in the Y direction. The wall portion 2c may be referred to as a front wall portion or the like, and the wall portion 2e may be referred to as a rear wall portion or the like. Further, the wall portions 2c to 2f may also be referred to as a side wall portion, a peripheral wall portion, or the like.

また、筐体２には、Ｘ方向に向けて開放され、図１に示される扉８によって開閉可能に覆われた作業用の開口部が設けられうる。扉８は、壁部２ｃの少なくとも一部を構成している。扉８は、筐体２に、扉８のＹ方向の反対方向の端部８ａ（Ｚ方向）に沿って延びる回転軸を有したヒンジ部を介して、回転可能に支持されている。扉８は、回転軸回りに回転することで、開口部を閉じる閉位置（図１参照）と、開口部を開放する開位置との間で、移動可能である。 Further, the housing 2 may be provided with an opening for work which is opened in the X direction and is covered by the door 8 shown in FIG. 1 so as to be openable and closable. The door 8 constitutes at least a part of the wall portion 2c. The door 8 is rotatably supported by the housing 2 via a hinge portion having a rotation axis extending along an end portion 8a (Z direction) in the direction opposite to the Y direction of the door 8. The door 8 can be moved between a closed position where the opening is closed (see FIG. 1) and an open position where the opening is opened by rotating around a rotation axis.

また、扉８のＹ方向の端部８ｂには、操作部９が設けられている。操作部９は、Ｘ方向に沿って延びる回転軸回りに回転可能に設けられたレバー９ａを有する。レバー９ａは、例えば、閉位置（図１参照）ではＺ方向に沿った下向きの状態となり、開位置ではＹ方向に沿った横向きの状態となる。レバー９ａは、ハンドルや、ドアノブ、把持部等とも称されうる。 Further, an operation unit 9 is provided at the end portion 8b of the door 8 in the Y direction. The operation unit 9 has a lever 9a rotatably provided around a rotation axis extending along the X direction. For example, the lever 9a is in a downward state along the Z direction at the closed position (see FIG. 1), and is in a lateral state along the Y direction at the open position. The lever 9a may also be referred to as a handle, a doorknob, a grip portion, or the like.

また、図２に示されるように、壁部２ａには、蓋３によって開閉可能に覆われた開口部２ｓが設けられている。開口部２ｓは、壁部２ａをＺ方向に貫通した貫通孔である。図３に示されるように、開口部２ｓは、Ｚ方向の視線では、円形状に構成されている。開口部２ｓは、例えば、遮断器等のスイッチギヤ１の主回路を構成する機器が配置される室等と繋がっている。 Further, as shown in FIG. 2, the wall portion 2a is provided with an opening 2s covered with a lid 3 so as to be openable and closable. The opening 2s is a through hole that penetrates the wall 2a in the Z direction. As shown in FIG. 3, the opening 2s is formed in a circular shape in the line of sight in the Z direction. The opening 2s is connected to, for example, a chamber or the like in which equipment constituting the main circuit of the switch gear 1 such as a circuit breaker is arranged.

図１に示されるように、蓋３は、例えば、覆部３ａと、接続部３ｂと、を有する。覆部３ａは、開口部２ｓの縁部２ｓ１（図２参照）に沿った円板状に構成されている。覆部３ａは、開口部２ｓを開閉可能に覆っている。 As shown in FIG. 1, the lid 3 has, for example, a covering portion 3a and a connecting portion 3b. The covering portion 3a is formed in a disk shape along the edge portion 2s1 (see FIG. 2) of the opening 2s. The covering portion 3a covers the opening 2s so as to be openable and closable.

接続部３ｂは、覆部３ａの基端部から覆部３ａと交差する方向に延びている。図２に示されるように、接続部３ｂは、ヒンジ部４と接続されている。蓋３は、覆部３ａおよび接続部３ｂによって、Ｘ方向と直交したＬ字状の断面を有している。 The connecting portion 3b extends from the base end portion of the covering portion 3a in a direction intersecting with the covering portion 3a. As shown in FIG. 2, the connecting portion 3b is connected to the hinge portion 4. The lid 3 has an L-shaped cross section orthogonal to the X direction by the covering portion 3a and the connecting portion 3b.

また、蓋３は、筐体２に、Ｘ方向に沿って延びる回転軸を有したヒンジ部４を介して、回転可能に支持されている。ヒンジ部４は、蓋３の接続部３ｂと、壁部２ａの外面２ａ１と、に固定されている。蓋３は、ヒンジ部４の回転軸回りに回転することで、開口部２ｓを閉じる閉位置Ｐ１（図１，２参照）と、開口部２ｓを開放する開位置Ｐ２（図３，４参照）との間で、移動可能である。覆部３ａは、蓋３が閉位置Ｐ１にある状態では、壁部２ａと平行であり、蓋３が開位置Ｐ２にある状態では、壁部２ａと直交する。蓋３は、開閉板や、放圧板、弁部等とも称されうる。 Further, the lid 3 is rotatably supported by the housing 2 via a hinge portion 4 having a rotation axis extending along the X direction. The hinge portion 4 is fixed to the connecting portion 3b of the lid 3 and the outer surface 2a1 of the wall portion 2a. The lid 3 has a closed position P1 (see FIGS. 1 and 2) that closes the opening 2s and an open position P2 (see FIGS. 3 and 4) that opens the opening 2s by rotating around the rotation axis of the hinge portion 4. It is possible to move between and. The cover portion 3a is parallel to the wall portion 2a when the lid 3 is in the closed position P1, and is orthogonal to the wall portion 2a when the lid 3 is in the open position P2. The lid 3 may also be referred to as an opening / closing plate, a pressure release plate, a valve portion, or the like.

図２，４に示されるように、袋状部材５は、例えば、少なくとも一つの袋体５１を有している。袋体５１は、筐体２の内側に位置された第一の部分５１ａと、筐体２の外側に位置された第二の部分５１ｂと、第一の部分５１ａおよび第二の部分５１ｂと繋がり開口部２ｓの内側に位置された第三の部分５１ｃと、を含む。第三の部分５１ｃは、開口部２ｓの縁部２ｓ１の全周に亘って設けられている。第一の部分５１ａは、開口縁部等と称され、第二の部分５１ｂは、袋部や、展開部、膨張部等と称され、第三の部分５１ｃは、スロート部や、接続部、挿入部等と称されうる。 As shown in FIGS. 2 and 4, the bag-shaped member 5 has, for example, at least one bag body 51. The bag body 51 is connected to a first portion 51a located inside the housing 2, a second portion 51b located outside the housing 2, and a first portion 51a and a second portion 51b. Includes a third portion 51c located inside the opening 2s. The third portion 51c is provided over the entire circumference of the edge portion 2s1 of the opening 2s. The first portion 51a is referred to as an opening edge portion or the like, the second portion 51b is referred to as a bag portion, a developing portion, an expanding portion or the like, and the third portion 51c is referred to as a throat portion, a connecting portion or the like. It can be called an insertion part or the like.

第一の部分５１ａは、第三の部分５１ｃと接続されている。第一の部分５１ａは、第三の部分５１ｃから筐体２の内側で壁部２ａに沿って開口部２ｓとは反対側に延び、結合具１２によって壁部２ａと結合されている。第一の部分５１ａは、端部や、固定部等とも称されうる。 The first portion 51a is connected to the third portion 51c. The first portion 51a extends from the third portion 51c inside the housing 2 along the wall portion 2a to the side opposite to the opening 2s, and is connected to the wall portion 2a by the coupling tool 12. The first portion 51a may also be referred to as an end portion, a fixed portion or the like.

第二の部分５１ｂは、第三の部分５１ｃと接続されている。第二の部分５１ｂは、第三の部分５１ｃから壁部２ａの外面２ａ１に沿って開口部２ｓとは反対側に延びるとともに、開口部２ｓを筐体２の外側から覆っている。第二の部分５１ｂは、蓋３が閉位置Ｐ１（図２参照）にある状態では、開口部２ｓの縁部２ｓ１の全周に沿った軸回りに複数段に折り畳まれて、覆部３ａと壁部２ａとの間に配置されている。 The second portion 51b is connected to the third portion 51c. The second portion 51b extends from the third portion 51c along the outer surface 2a1 of the wall portion 2a on the side opposite to the opening 2s, and covers the opening 2s from the outside of the housing 2. The second portion 51b is folded in a plurality of steps around the entire circumference of the edge portion 2s1 of the opening 2s in a state where the lid 3 is in the closed position P1 (see FIG. 2), and is folded in a plurality of steps together with the covering portion 3a. It is arranged between the wall portion 2a and the wall portion 2a.

そして、本実施形態では、例えば、異常等によって筐体２内の圧力が閾値よりも高まった場合に、第二の部分５１ｂが筐体２内で生じたガス１０を導入して膨らむとともに、第二の部分５１ｂが蓋３を押して閉位置Ｐ１（図２参照）から開位置Ｐ２（図４参照）へ移動させるよう、構成されている。すなわち、第二の部分５１ｂの内側に筐体２内で生じた高温や高圧のガス１０の少なくとも一部を閉じ込める構造となっている。これにより、ガス１０が蓋３から筐体２外、すなわち筐体２が設置される電気室等の室内へ勢いよく出るのが抑制されている。第二の部分５１ｂは、覆部や、ガス収容部等とも称されうる。 Then, in the present embodiment, for example, when the pressure in the housing 2 rises above the threshold value due to an abnormality or the like, the second portion 51b introduces the gas 10 generated in the housing 2 and expands, and at the same time, the second portion 51b expands. The second portion 51b is configured to push the lid 3 to move it from the closed position P1 (see FIG. 2) to the open position P2 (see FIG. 4). That is, the structure is such that at least a part of the high-temperature or high-pressure gas 10 generated in the housing 2 is confined inside the second portion 51b. As a result, the gas 10 is suppressed from being vigorously discharged from the lid 3 to the outside of the housing 2, that is, to a room such as an electric room in which the housing 2 is installed. The second portion 51b may also be referred to as a covering portion, a gas accommodating portion, or the like.

また、図４に示されるように、第二の部分５１ｂには、ガス１０の逃げ穴５１ｂ１が設けられている。逃げ穴５１ｂ１は、例えば、第二の部分５１ｂを貫通した貫通孔である。逃げ穴５１ｂ１は、蓋３とは外れた位置、すなわち蓋３によって覆われることなく第二の部分５１ｂが露出する位置、一例としては、第二の部分５１ｂが膨らんだ場合にＺ方向の略頂部となる位置に、設けられている。本実施形態では、このような逃げ穴５１ｂ１によって、袋状部材５がガス１０を導入して膨らんだ場合に内部の圧力が過度に高まるのが抑制されている。 Further, as shown in FIG. 4, the second portion 51b is provided with an escape hole 51b1 for the gas 10. The escape hole 51b1 is, for example, a through hole that penetrates the second portion 51b. The escape hole 51b1 is located at a position separated from the lid 3, that is, a position where the second portion 51b is exposed without being covered by the lid 3, for example, a substantially top portion in the Z direction when the second portion 51b is inflated. It is provided at the position where In the present embodiment, such an escape hole 51b1 suppresses an excessive increase in internal pressure when the bag-shaped member 5 is expanded by introducing the gas 10.

なお、第二の部分５１ｂは、例えば、Ｃ字状や、Ｉ字状、Ｕ字状、Ｖ字状、Ｘ字状等のスリットが設けられた部分が袋外側に拡開することにより逃げ穴５１ｂ１が出現するような構成であってもよい。また、第二の部分５１ｂは、例えば、比較的小さなＣ字状や、Ｉ字状、Ｏ字状、Ｕ字状、Ｖ字状、Ｘ字状等の薄肉部等の脆弱部が設けられ、当該脆弱部が内圧の上昇に伴う応力集中によって破断することにより逃げ穴５１ｂ１が出現するような構成であってもよい。 In the second portion 51b, for example, a portion provided with a slit such as a C-shape, an I-shape, a U-shape, a V-shape, or an X-shape is expanded to the outside of the bag to provide an escape hole. The configuration may be such that 51b1 appears. Further, the second portion 51b is provided with a fragile portion such as a relatively small C-shape or a thin-walled portion such as an I-shape, an O-shape, a U-shape, a V-shape, or an X-shape. The fragile portion may be configured such that a relief hole 51b1 appears when the fragile portion breaks due to stress concentration accompanying an increase in internal pressure.

袋状部材５は、例えば、ポリ塩化ビニルや、ポリフェニレンオキサイド、難燃ＥＰゴム、架橋ポリエチレン、難燃クロロプレンゴム、ポリビニリデンフロライド、シリコーンゴム、テトラフロロエチレン等の難燃性および伸縮性を有した材料によって構成されうる。これにより、袋状部材５のガス１０に対する耐熱性や、耐圧性、衝撃吸収性等が高まりやすい。 The bag-shaped member 5 has flame retardancy and elasticity such as polyvinyl chloride, polyphenylene oxide, flame-retardant EP rubber, cross-linked polyethylene, flame-retardant chloroprene rubber, polyvinylidene fluoride, silicone rubber, and tetrafluoroethylene. It can be composed of the same material. As a result, the heat resistance, pressure resistance, shock absorption, etc. of the bag-shaped member 5 with respect to the gas 10 tend to increase.

図２，３に示されるように、取付部材６，７は、開口部２ｓの縁部２ｓ１に沿った円環状（リング状）に構成されている。取付部材６，７には、それぞれ、結合具１２のボルト１２ａが貫通する複数の貫通孔６ａ，７ａが設けられている。本実施形態では、例えば、取付部材６、第二の部分５１ｂ、壁部２ａ、第一の部分５１ａ、メッシュ部材１１、および取付部材７を貫通したボルト１２ａにナット１２ｂが噛み合うことによって、袋状部材５が壁部２ａと結合されている。ボルト１２ａおよびナット１２ｂは、結合具１２の一例である。 As shown in FIGS. 2 and 3, the mounting members 6 and 7 are formed in an annular shape (ring shape) along the edge portion 2s1 of the opening 2s. The mounting members 6 and 7 are provided with a plurality of through holes 6a and 7a through which the bolts 12a of the fitting 12 penetrate, respectively. In the present embodiment, for example, the nut 12b meshes with the bolt 12a penetrating the mounting member 6, the second portion 51b, the wall portion 2a, the first portion 51a, the mesh member 11, and the mounting member 7, thereby forming a bag shape. The member 5 is connected to the wall portion 2a. The bolt 12a and the nut 12b are examples of the fitting 12.

また、取付部材６には、Ｚ方向に向けて開放された複数の有底の凹部６ｂが設けられている。複数（例えば、八つ）の凹部６ｂは、開口部２ｓの縁部２ｓ１に沿って互いに間隔をあけて設けられている。凹部６ｂのそれぞれには、ボルト１２ａの頭部が収容される。また、凹部６ｂのそれぞれの底部には、ボルト１２ａの軸部が貫通する貫通孔６ａが設けられている。 Further, the mounting member 6 is provided with a plurality of bottomed recesses 6b that are open in the Z direction. A plurality of (for example, eight) recesses 6b are provided so as to be spaced apart from each other along the edge portion 2s1 of the opening 2s. The head of the bolt 12a is housed in each of the recesses 6b. Further, a through hole 6a through which the shaft portion of the bolt 12a penetrates is provided at the bottom of each of the recesses 6b.

図２に示されるように、メッシュ部材１１は、第一の部分５１ａと取付部材７との間に設けられている。メッシュ部材１１は、開口部２ｓを筐体２の内側から覆っている。メッシュ部材１１は、例えば、アルミやステンレス等の金属線によって、メッシュ状かつ所定の厚さを有したシート状に構成されている。メッシュ部材１１は、筐体２内の圧力が閾値よりも高まった場合に、ガス１０の開口部２ｓ側への流出を許容しつつ、筐体２内に収容される部品等の開口部２ｓ側への流出を抑制している。メッシュ部材１１は、防護部材等とも称されうる。 As shown in FIG. 2, the mesh member 11 is provided between the first portion 51a and the mounting member 7. The mesh member 11 covers the opening 2s from the inside of the housing 2. The mesh member 11 is formed of, for example, a metal wire such as aluminum or stainless steel in a mesh shape and a sheet shape having a predetermined thickness. The mesh member 11 allows the gas 10 to flow out to the opening 2s side when the pressure in the housing 2 rises above the threshold value, while allowing the gas 10 to flow out to the opening 2s side of the parts and the like housed in the housing 2. The outflow to is suppressed. The mesh member 11 may also be referred to as a protective member or the like.

以上のように、本実施形態では、例えば、スイッチギヤ１は、開口部２ｓが設けられた筐体２と、筐体２の外側に設けられ、開口部２ｓを覆う蓋３と、少なくとも一部が蓋３と筐体２との間に設けられるとともに、筐体２の外側から開口部２ｓを覆う状態に設けられ、筐体２内で生じて開口部２ｓから流出したガス１０を導入して膨らむ袋状部材５と、を備える。よって、本実施形態によれば、例えば、異常等によって筐体２内の圧力が閾値よりも高まった場合に、袋状部材５の内側に筐体２内で生じた高温や高圧のガス１０の少なくとも一部を閉じ込めることができる。よって、例えば、蓋３から筐体２外、すなわち筐体２が設置される電気室等の室内へのガス１０の噴出（飛散、放出、漏洩）が抑制されやすく、ひいては当該ガス１０によって生じる筐体２の周囲に配置される機器等への影響が抑制されうる。 As described above, in the present embodiment, for example, the switch gear 1 includes a housing 2 provided with an opening 2s, a lid 3 provided outside the housing 2 and covering the opening 2s, and at least a part thereof. Is provided between the lid 3 and the housing 2, and is provided so as to cover the opening 2s from the outside of the housing 2, and the gas 10 generated in the housing 2 and flowing out from the opening 2s is introduced. A swelling bag-shaped member 5 is provided. Therefore, according to the present embodiment, for example, when the pressure in the housing 2 rises above the threshold value due to an abnormality or the like, the high-temperature or high-pressure gas 10 generated in the housing 2 inside the bag-shaped member 5 At least part of it can be trapped. Therefore, for example, the ejection (scattering, release, leakage) of the gas 10 from the lid 3 to the outside of the housing 2, that is, into a room such as an electric room in which the housing 2 is installed is easily suppressed, and eventually the housing generated by the gas 10. The influence on the devices and the like arranged around the body 2 can be suppressed.

また、本実施形態では、例えば、蓋３は、開口部２ｓを開閉可能に覆い、ガス１０が導入されて膨らむ袋状部材５によって閉位置Ｐ１から開位置Ｐ２へ動かされる。よって、本実施形態によれば、例えば、袋状部材５の膨らみを利用して蓋３を閉位置Ｐ１から開位置Ｐ２へ移動させることができる。また、例えば、袋状部材５が蓋３に対する衝撃吸収部として機能しうる。 Further, in the present embodiment, for example, the lid 3 covers the opening 2s so as to be openable and closable, and is moved from the closed position P1 to the open position P2 by the bag-shaped member 5 in which the gas 10 is introduced and swells. Therefore, according to the present embodiment, for example, the lid 3 can be moved from the closed position P1 to the open position P2 by utilizing the bulge of the bag-shaped member 5. Further, for example, the bag-shaped member 5 can function as a shock absorbing portion for the lid 3.

また、本実施形態では、例えば、袋状部材５に、ガス１０の逃げ穴５１ｂ１が設けられている。よって、本実施形態によれば、例えば、逃げ穴５１ｂ１によって、袋状部材５がガス１０を導入して膨らんだ場合に内部の圧力が過度に高まるのが抑制されやすい。 Further, in the present embodiment, for example, the bag-shaped member 5 is provided with an escape hole 51b1 for the gas 10. Therefore, according to the present embodiment, for example, the escape hole 51b1 tends to prevent the bag-shaped member 5 from excessively increasing the internal pressure when the gas 10 is introduced and swells.

また、本実施形態では、例えば、袋状部材５は、伸縮性を有した材料によって構成されている。よって、本実施形態によれば、例えば、蓋３が閉位置Ｐ１にある状態で、袋状部材５がよりコンパクトに蓋３と筐体２との間に配置されやすい。また、伸縮性を有するため、袋状部材５のガス１０に対する耐圧性や衝撃吸収性等が高まりやすく、ひいては袋状部材５がガス１０を導入して膨らんだ場合により破れ難くなりやすい。 Further, in the present embodiment, for example, the bag-shaped member 5 is made of a stretchable material. Therefore, according to the present embodiment, for example, in a state where the lid 3 is in the closed position P1, the bag-shaped member 5 is more compactly arranged between the lid 3 and the housing 2. Further, since the bag-shaped member 5 has elasticity, the pressure resistance and shock absorption of the bag-shaped member 5 with respect to the gas 10 are likely to increase, and the bag-shaped member 5 is likely to be less likely to be torn when the gas 10 is introduced and swells.

また、本実施形態では、例えば、袋状部材５は、難燃性を有した材料によって構成されている。よって、本実施形態によれば、例えば、袋状部材５のガス１０に対する耐熱性が高まりやすい。 Further, in the present embodiment, for example, the bag-shaped member 5 is made of a flame-retardant material. Therefore, according to the present embodiment, for example, the heat resistance of the bag-shaped member 5 to the gas 10 tends to increase.

＜第２実施形態＞
図５，６に示される実施形態のスイッチギヤ１Ａは、上記第１実施形態のスイッチギヤ１と同様の構成を備えている。よって、本実施形態によっても、上記第１実施形態と同様の構成に基づく同様の結果（効果）が得られる。 <Second Embodiment>
The switch gear 1A of the embodiment shown in FIGS. 5 and 6 has the same configuration as the switch gear 1 of the first embodiment. Therefore, the same result (effect) based on the same configuration as that of the first embodiment can be obtained also by this embodiment.

ただし、本実施形態では、例えば、図５，６に示されるように、袋状部材５Ａが互いに重ねられた複数の袋体５１Ａ，５１Ｂを有する点が、上記第１実施形態と相違している。袋体５１Ａは、袋体５１Ｂの外側に位置され、袋体５１Ｂを覆っている。換言すれば、袋体５１Ｂは、袋体５１Ａ内に収容されている。本実施形態では、袋体５１Ａの大きさは、袋体５１Ｂの大きさと略同じかあるいは僅かに大きい。よって、本実施形態によれば、例えば、複数の袋体５１Ａ，５１Ｂによって、開口部２ｓの保護性が高まりやすく、ひいてはガス１０や筐体２に収容される部品等の電気室への流出がより確実に抑制されうる。なお、袋体５１Ａ，５１Ｂの数は、二つには限定されず、例えば、三つ以上であってもよい。また、袋体５１Ａ，５１Ｂの材質を互いに異ならせてもよい。 However, the present embodiment is different from the first embodiment in that, for example, as shown in FIGS. 5 and 6, the bag-shaped members 5A have a plurality of bag bodies 51A and 51B in which the bag-shaped members 5A are overlapped with each other. .. The bag body 51A is located outside the bag body 51B and covers the bag body 51B. In other words, the bag body 51B is housed in the bag body 51A. In the present embodiment, the size of the bag body 51A is substantially the same as or slightly larger than the size of the bag body 51B. Therefore, according to the present embodiment, for example, the plurality of bag bodies 51A and 51B tend to enhance the protection of the opening 2s, and eventually the gas 10 and the parts housed in the housing 2 flow out to the electric room. It can be suppressed more reliably. The number of bag bodies 51A and 51B is not limited to two, and may be, for example, three or more. Further, the materials of the bag bodies 51A and 51B may be different from each other.

＜第３実施形態＞
図７に示される実施形態のスイッチギヤ１Ｂは、上記第１実施形態のスイッチギヤ１と同様の構成を備えている。よって、本実施形態によっても、上記第１実施形態と同様の構成に基づく同様の結果（効果）が得られる。 <Third Embodiment>
The switch gear 1B of the embodiment shown in FIG. 7 has the same configuration as the switch gear 1 of the first embodiment. Therefore, the same result (effect) based on the same configuration as that of the first embodiment can be obtained also by this embodiment.

ただし、本実施形態では、例えば、図７に示されるように、壁部２ａにそれぞれが袋状部材５Ｂおよび蓋３によって覆われた複数の開口部２ｓが設けられている点が、上記第１実施形態と相違している。具体的には、本実施形態では、例えば、壁部２ａに互いに間隔をあけて四つの開口部２ｓが設けられるとともに、それぞれの開口部２ｓに対応して、四つの袋状部材５Ｂ、および四つの蓋３が設けられている。よって、本実施形態によれば、複数の袋状部材５Ｂによって容積を稼ぐことができるため、例えば、一つ一つの袋状部材５Ｂの大きさをより小さく構成することができるという利点がある。よって、例えば、壁部２ａと電気室の天井との間のスペースが比較的小さいような場合にも、袋状部材５Ｂの展開した状態、すなわちガス１０を導入して膨らんだ状態がより確実に得られうる。なお、開口部２ｓ、蓋３、および袋状部材５Ｂの数は、四つには限定されず、例えば、二つや、三つ、あるいは五つ以上であってもよい。また、開口部２ｓ、蓋３、および袋状部材５Ｂが設けられる場所は、壁部２ａには限定されず、例えば、壁部２ｃ〜２ｆ等に設けられてもよい。 However, in the present embodiment, for example, as shown in FIG. 7, the first point is that the wall portion 2a is provided with a plurality of openings 2s each covered by a bag-shaped member 5B and a lid 3. It is different from the embodiment. Specifically, in the present embodiment, for example, the wall portion 2a is provided with four openings 2s at intervals from each other, and the four bag-shaped members 5B and four correspond to the respective openings 2s. Two lids 3 are provided. Therefore, according to the present embodiment, since the volume can be increased by the plurality of bag-shaped members 5B, there is an advantage that the size of each bag-shaped member 5B can be made smaller, for example. Therefore, for example, even when the space between the wall portion 2a and the ceiling of the electric room is relatively small, the expanded state of the bag-shaped member 5B, that is, the expanded state by introducing the gas 10 is more reliable. Can be obtained. The number of openings 2s, lids 3, and bag-shaped members 5B is not limited to four, and may be, for example, two, three, or five or more. Further, the place where the opening 2s, the lid 3 and the bag-shaped member 5B are provided is not limited to the wall portion 2a, and may be provided in, for example, the wall portions 2c to 2f.

以上、本発明の実施形態を例示したが、上記実施形態はあくまで一例であって、発明の範囲を限定することは意図していない。上記実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、組み合わせ、変更を行うことができる。上記実施形態は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。本発明は、上記実施形態に開示される構成以外によっても実現可能であるとともに、基本的な構成（技術的特徴）によって得られる種々の効果（派生的な効果も含む）を得ることが可能である。また、各構成要素のスペック（構造や、種類、方向、形状、大きさ、長さ、幅、厚さ、高さ、数、配置、位置、材質等）は、適宜に変更して実施することができる。
以下に、出願当初の特許請求の範囲の内容を付記する。
［１］
開口部が設けられた筐体と、
前記筐体の外側に設けられ、前記開口部を覆う蓋と、
少なくとも一部が前記蓋と前記筐体との間に設けられるとともに、前記筐体の外側から前記開口部を覆う状態に設けられ、前記筐体内で生じて前記開口部から流出したガスを導入して膨らむ袋状部材と、
を備えた、スイッチギヤ。
［２］
前記蓋は、前記開口部を開閉可能に覆い、前記ガスが導入されて膨らむ前記袋状部材によって閉位置から開位置へ動かされる、［１］に記載のスイッチギヤ。
［３］
前記袋状部材は、伸縮性を有した、［１］または［２］に記載のスイッチギヤ。
［４］
前記袋状部材は、互いに重ねられた複数の袋体を有した、［１］〜［３］のうちいずれか一つに記載のスイッチギヤ。
［５］
複数の前記開口部と、
複数の前記開口部のそれぞれに対応して設けられた複数の前記蓋と、
複数の前記開口部のそれぞれに対応して設けられた複数の前記袋状部材と、
を備えた、［１］〜［４］のうちいずれか一つに記載のスイッチギヤ。 Although the embodiments of the present invention have been illustrated above, the above embodiments are merely examples and are not intended to limit the scope of the invention. The above-described embodiment can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the gist of the invention. The above-described embodiment is included in the scope and gist of the invention, and is also included in the scope of the invention described in the claims and the equivalent scope thereof. The present invention can be realized by a configuration other than the configuration disclosed in the above embodiment, and various effects (including derivative effects) obtained by the basic configuration (technical features) can be obtained. is there. In addition, the specifications of each component (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) should be changed as appropriate. Can be done.
The contents of the claims at the time of filing are added below.
[1]
A housing with an opening and
A lid provided on the outside of the housing and covering the opening,
At least a part thereof is provided between the lid and the housing, and is provided so as to cover the opening from the outside of the housing, and gas generated in the housing and flowing out from the opening is introduced. A bag-shaped member that swells up and
With, switch gear.
[2]
The switch gear according to [1], wherein the lid covers the opening so as to be openable and closable, and is moved from a closed position to an open position by the bag-shaped member that expands when the gas is introduced.
[3]
The switch gear according to [1] or [2], wherein the bag-shaped member has elasticity.
[4]
The switch gear according to any one of [1] to [3], wherein the bag-shaped member has a plurality of bag bodies stacked on each other.
[5]
With the plurality of the openings
A plurality of the lids provided corresponding to each of the plurality of openings,
A plurality of the bag-shaped members provided corresponding to each of the plurality of openings,
The switch gear according to any one of [1] to [4].

１，１Ａ，１Ｂ…スイッチギヤ、２…筐体、２ｓ…開口部、３…蓋、５，５Ａ，５Ｂ…袋状部材、５１，５１Ａ，５１Ｂ…袋体、５１ｂ１…逃げ穴、１０…ガス、Ｐ１…閉位置、Ｐ２…開位置。 1,1A, 1B ... switch gear, 2 ... housing, 2s ... opening, 3 ... lid, 5,5A, 5B ... bag-shaped member, 51,51A, 51B ... bag body, 51b1 ... escape hole, 10 ... gas , P1 ... Closed position, P2 ... Open position.

Claims

A housing with an opening and
A lid provided on the outside of the housing and covering the opening,
At least a part thereof is provided between the lid and the housing, and is provided so as to cover the opening from the outside of the housing, and gas generated in the housing and flowing out from the opening is introduced. A bag-shaped member that swells up and
With
An escape hole that penetrates the bag-shaped member is provided at a position that becomes the top of the bag-shaped member when the bag-shaped member is inflated.
Switch gear.

The switch gear according to claim 1, wherein the lid covers the opening so as to be openable and closable, and is moved from a closed position to an open position by the bag-shaped member that expands when the gas is introduced.

The switch gear according to claim 1 or 2, wherein the bag-shaped member has elasticity.

The switch gear according to any one of claims 1 to 3, wherein the bag-shaped member has a plurality of bag bodies overlapped with each other.

With the plurality of the openings
A plurality of the lids provided corresponding to each of the plurality of openings,
A plurality of the bag-shaped members provided corresponding to each of the plurality of openings,
The switch gear according to any one of claims 1 to 4, further comprising.

The switch gear according to any one of claims 1 to 5, wherein the escape hole appears when a portion of the bag-shaped member provided with a slit expands outward.

The switch gear according to any one of claims 1 to 5, wherein the escape hole appears when a fragile portion provided in the bag-shaped member breaks as the internal pressure of the bag-shaped member increases. ..