JP4334255B2

JP4334255B2 - Electrical equipment housing

Info

Publication number: JP4334255B2
Application number: JP2003084059A
Authority: JP
Inventors: 義雄青木
Original assignee: Shindengen Electric Manufacturing Co Ltd
Current assignee: Shindengen Electric Manufacturing Co Ltd
Priority date: 2003-03-26
Filing date: 2003-03-26
Publication date: 2009-09-30
Anticipated expiration: 2023-03-26
Also published as: JP2004296559A

Description

【０００１】
【発明の属する技術分野】
本発明は、内部に単数又は複数の電気機器を収納する電気機器筐体に関するものである。
【０００２】
【従来の技術】
従来の内部に単数又は複数の電気機器を収納してなる電気機器筐体は、互いに接合されて筐体を複数の金属パネルで形成し、上記パネルを互いに強固に結合させ、上記筐体の角隅部の剛性を高める少なくとも１つの結合金具と、締結具を併用する接着剤を有し、上記パネル間および上記パネルと上記結合金具との間を互いに接合する接合手段とを備え、電気機器筐体の剛性を高めて、耐震性を高める構成にしてある（特許文献１参照）。
【０００３】
また、同じく電気機器筐体を、側板の形状に合わせて柱枠を設け、この柱枠の上梁を天板に接合し、下梁を底板に接合した構成にし、筐体を補強していた（特許文献２参照）。
【０００４】
【特許文献１】
特開平８−３１７５１４号公報（第４−５頁、第６図）
【特許文献２】
特開２００２−８４０７６公報（第２頁、第１図）
【０００５】
【発明が解決しようとする課題】
前記の従来例は、いずれも耐震性を高める構成になっている。しかし、前者については、筐体の角隅部のみ剛性が強い。例えば、大型装置用の整流器のようなの大型の機器を複数積み並べて収納した場合に、筐体全体が高くなり、側板の中央部分は角隅部に比べて剛性が弱い。そのため、角隅部のみの剛性では、強大な耐震性を得られない課題がある。
【０００６】
後者については、筐体の内側に４本の柱枠を設けてあるが、強大な耐震性を得られない。また、部品点数が増えるとともに、これらの柱枠を収納するスペースが必要になり、筐体が大型化する課題がある。
【０００７】
本発明は、上記問題に鑑みてなされたものであり、耐震性能を向上させることができるうえに、部品点数を減らすことが可能である内部に電気機器を収納する電気機器筐体を提供する。
【０００８】
【課題を解決しようとする手段】
上記目的を達成するためになされた本発明は、柱、梁並びに筋交いなどの柱状体の補強材を必要としないため、部品点数を減らすことができ、その上、側板の外面に単数又は複数の凹凸を垂直方向に形成したことにより、筐体側面においても剛性向上の構造であるため、耐震性能を向上させることができる。
【０００９】
本発明は、側板を単数又は複数箇所を垂直方向に曲げた構成にしたことにより、左右方向にかかる力は分散され、耐震性能を向上させることができる。さらに、側板を垂直方向にコの字型に折り曲げて凹部を形成したことにより、側板が単なる板状の場合に比べて、剛性が向上し、耐震性能を向上させることができる。
【００１０】
本発明では、底板及び天板に立ち上がり部を形成して、これら立ち上がり部に側板を接合した箱型構造を構成したことにより、剛性が向上する。また、側板と底板、及び側板と天板の厚みが増すため、接合部分が強化され、耐震性能がさらに向上する。
【００１１】
本発明では、筐体の内部に側板の凹部の折り曲げ面を補強する補強部材を設けることにより、筐体の左右方向に対しても補強することができ、耐震性能がさらに向上する。
【００１２】
本発明では、この角隅部及び固定穴に補強部材を設けたことにより、地震波の影響を最も受ける筐体の角隅部及び固定穴を補強することができ、耐震性能がさらに向上する。
【００１３】
本発明では、天板にも補強部材を接合してあることにより、筐体の天井部分も補強され、剛性が向上する。これに加え、本発明では、補強部材に立ち上がり部を形成し、前後方向に設けた立ち上がり部を天板に設けた立ち上がり部及び側板凹部の折り曲げ部に接合し、左右方向に設けた立ち上がり部を天板に設けた立ち上がり部に接合することにより、歪エネルギーを分散させることができ、その結果、耐震性能が向上する。
【００１４】
本発明では、側板及び／又は補強部材の上端及び／又は下端に突起を設けるとともに、底板、天板並びに／若しくは補強部材にスリットを形成し、突起にスリットを差し込んだことにより、組立性が向上する。
【００１５】
【発明の実施の形態】
以下、添付図面を用いて本発明電気機器筐体に係る実施例を説明する。図１は本発明に係る電気機器筐体の分解図を示し、図２はその組立図を示す。また、図３はこの筐体の一使用形態を示す。１は側板、２は底板、３は天板、４，５は補強部材、９は電気機器である。
【００１６】
この筐体は左右対称に板状パネルで構成した側板１と、同じくを板状パネルで構成した底板２と天板３とからなる。側板１を垂直方向に曲げて凹凸を形成してある。本実施例においては、側板１を垂直方向にコの字型に折り曲げて、２つの凹部１１を形成してある。なお、凹部１１は少なくとも１つ形成してあればよい。また、側板１の両縁を底板２又は天板３側に折り曲げて折り曲げ部を形成し、さらに、この折り曲げ部を内側に折り曲げて、側板１の両縁の断面がコの字型である凸部１２に形成してある。また、この側板１の角隅部には三角形状の鍔１３を設けてある。
【００１７】
底板２は四方を垂直方向に折り曲げて立ち上がり部２１を形成してあり、この立ち上がり部２１に側板１を接合するように構成してある。なお、底板２についての詳細は後述する。また、同じく天板３も四方を垂直方向に折り曲げて立ち上がり部３１を形成してあり、この立ち上がり部３１に側板１を接合するように構成してある。天板３についても詳細は後述する。また、底板２に補強部材４を設置してあるとともに、天板３にも補強部材５を設けてあり、底板２及び天板３を補強するようにしてある。
【００１８】
以上からなる側板１、底板２、天板３、及び補強部材４，５を組み立てると図２に示すような、筐体を構成することができ、これに複数の電気機器９を積み並べることにより、図３で示す電気機器装置を構成することができる。
【００１９】
続いて、以上のように電気機器筐体を構成するための具体的手段について説明する。図４乃至図６は側板１と底板２とを組み立てる説明を示した図である。具体的には図４は組み立てる前の図であり、図５は組み立て図であり、図６は側板１と底板２とを接合した図である。１１は凹部、１２は凸部、１３は鍔、２１は立ち上がり部、２２は切り込み、２３，２４は折り曲げ部である。また、この実施例では側板１の凹部１１の折り曲げ面１５を補強する三角形状の補強部材４を筐体の内部に設けてある。
【００２０】
底板２は四方を垂直方向上向きに折り曲げて立ち上がり部２１を形成してある。また、底板２の左右の縁には側板１を接合した際に、側板１の凹部１１及び平面部分との境目に合わせて切り込み２２を形成してあるとともに、側板１の凹部１１に位置する部分に折り曲げ部２３を設け、この折り曲げ部２３が水平になるように内側に折り曲げてある。
【００２１】
底板２の前後に立ち上がり部２１を設けてある。この立ち上がり部２１は左右が欠けており、この部分に側板１の凸部１２を配置できるようにしてある。また、前部に設けた立ち上がり部２１は左右に設けた立ち上がり部２１とほぼ同じ高さであるのに対し、後部に設けた立ち上がり部２１は左右に設けた立ち上がり部２１よりやや高くなっている。これらの上部を内側に折り曲げて折り曲げ部２４を形成してある。
【００２２】
なお、後部の立ち上がり部２１は折り曲げ部２４を形成することにより、底板２左右の立ち上がり部２１とほぼ同じ高さにしてある。また、側板１の凹部１１及び鍔１３の下端、並びに補強部材４の下端には突起１４，４１を設けてあり、側板１と底板２、及び補強部材４と底板２を接合した際にこの突起１４，４１が位置する部分にスリット２５を形成してある。
【００２３】
以上のように構成してある側板１、底板２及び補強部材４を以下のように接合する。まず、側板１の突起１４を底板２のスリット２５に挿入する。この際、側板１の両縁に設けた凸部１２が底板２の前後の折り曲げ部２４の両縁に設けたスペースに嵌入するとともに、側板１の角隅部に設けた鍔１３が底板２の前後の折り曲げ部２４の下側に位置し、鍔１３の突起１４を底板２のスリット２５に挿入する。また、補強部材４の突起４１を底板２のスリット２５に挿入する。以上より、図５で示すように側板１と底板２とが一体化する。
【００２４】
側板１の平面部分と底板２の立ち上がり部２１とをリベット９２で接合してある。また、側板１の凹部１１と底板２左右の折り曲げ部２４の先縁部とを溶接９１してある。側板１の凸部１２と底板２前後の立ち上がり部２１と折り曲げ部２３とを溶接９１してある。さらに、補強部材４の上辺を側板１の凸部１１の折り曲げ面１５に溶接９１してあるとともに、補強部材４の下辺を底板２に溶接９１してある。
【００２５】
続いて、図７乃至図１１は前記とは別の実施例を示してある。この実施例では、前記補強部材４に加え、底板２の角隅部及び固定穴２６を補強する補強部材６を設けてある。なお、固定穴２６とは、筐体を地面に固定するために形成された穴であり、本実施例では前後の角隅部及び左右両縁のほぼ中央部に固定穴２６を形成してある。具体的には図７は底板２に補強部材４を接合する前の分解図であり、図８はその組み立て図である。また、図９は側板１に底板２を組み立てる前の図であり、図１０はその組み立て図であり、図１１は側板１と底板２とを接合した図である。なお、側板１、底板２及び補強部材４については、前記実施例とほぼ同じ構成であるため、説明を省略する。
【００２６】
底板２の角隅部及び固定穴２６を補強する補強部材６は、底面が長方形の板状体であり、この補強部材６の側部６１の断面は側板１の凹凸に合わせてＬ字状になっている。具体的には、一方の側面は底板２の立ち上がり部２１に接合できるようにしてあり、他方の側面は側板１と底板２とを接合した際に、側板１の凹部１１の一面に接合できるようにしてある。また、他方の側面を斜めに切欠してある。また、側板１の鍔１３の下端には突起１４を設けてあることから、補強部材６の底面にもスリット６４を形成してある。さらに、この補強部材６の底面は固定穴２６を覆う構成になっており、また、この底面には固定穴２６とほぼ同一形状の固定穴６５を形成してある。
【００２７】
以上のように構成してある側板１、底板２及び補強部材４，６を以下のように接合する。先ず、底板２と補強部材６とを組み込む。これについては図８に示してある。補強部材６を底板２の夫々の角隅部に載置する。この際、補強部材６の一方の側面６１を底板２の立ち上がり部２１に合わせるとともに、他方の側面６２を前後方向の開放面に合わせる。
【００２８】
前記実施例と同様に、図９で示すように、側板１の突起１４を底板２及び補強部材６のスリット２５，６４に挿入し、補強部材４の突起４１を底板２のスリット２５に挿入する。これにより、図１０で示すように側板１と底板２とが一体化する。
【００２９】
側板１の平面部分と底板２とをリベット９２で接合してある。また、側板１の凹部１１と底板２左右の折り曲げ部２４の先縁部とを溶接９１してある。側板１の凸部１２と底板２前後の立ち上がり部２１と折り曲げ部２３とを溶接９１してある。さらに、補強部材４の上辺を側板１の凹部１１の折り曲げ面１５に溶接９１してあるとともに、補強部材４の下辺を底板２に溶接９１してある。補強部材６の底面６３を底板２に溶接９１してあるとともに、補強部材６の一方の側面６１を底板２の立ち上がり部２１に溶接９１してあるとともに、他方の側面６２を側板の凹部１１に溶接９１してある。
【００３０】
続いて、図１２乃至図１６は側板１と天板３とを組み立てる説明を示した図である。具体的には図１２は天板３に補強部材５を接合する前の分解図であり、図１３はその組み立て図である。また、図１４は側板１に天板３を組み立てる前の図であり、図１５はその組み立て図であり、図１６は側板１と天板３とを接合した図である。３１，３５は立ち上がり部、３２は切り込み、３３，３４は折り曲げ部である。また、この実施例では矩形の補強部材５を設けてある。
【００３１】
天板３は四方を垂直方向下向きに折り曲げて立ち上がり部３１を形成してある。また、天板３の左右の縁には側板１を接合した際に、側板１の凹部１１及び平面部分との境目に合わせて切り込み３２を形成してあるとともに、側板１の凹部１１の折り曲げ面１５に合わせて天板３に折り曲げ部３３を設け、この折り曲げ部３３が水平になるように内側に折り曲げてある。なお、天板３から配線するため、この天板３の天面にスペースを設けてある。また、天板３の左右方向に立ち上がり部３５を形成してあり、後述する補強部材５とに嵌め合わせられるようにしてある。
【００３２】
天板３の前後に立ち上がり部３１を設けてある。この立ち上がり部３１は左右が欠けており、この部分に側板１の凸部１２を配置できるようにしてある。また、前後に設けた立ち上がり部３１は左右に設けた立ち上がり部３１よりやや高くなっており、これらの上部を内側に折り曲げて折り曲げ部３４を形成し、さらに、下側に折り曲げて立ち上がり部３５を形成してある。なお、前後の立ち上がり部３１は折り曲げ部３４を形成することにより、天板３の左右の立ち上がり部３１とほぼ同じ高さにしてある。
【００３３】
天板３の左右方向に補強部材５を設けられるようにしてある。この補強部材５は長方形であり、長辺は天板３の前後の辺とほぼ平行である。補強部材５の天面５２にスペースを形成してあり、このスペースに天板３に形成した立ち上がり部３５が挿入できるようにしてある。また、側板１の凹部１１及び鍔１３の上端には突起１４を設けてあり、側板１と天板３を接合した際にこの突起１４が位置する部分にスリット３６を形成してある。なお、側板１については前記実施例と構成がほぼ同様であるため、説明は省略する。
【００３４】
以上のように構成してある側板１、天板３及び補強部材５を以下のように接合する。先ず、天板３と補強部材５とを組み込む。これについては図１３に示してある。補強部材５を天板３の中央部分に装着する。この際、補強部材５のスペースに天板３の中央部分に設けた立ち上がり部３５を挿入する。これにより、補強部材５の短面の外面は天板３の左右の立ち上がり部３１の中央内面に接する。天板３の上から天板３と補強部材５とをリベット９２で接合してある。
【００３５】
続いて、側板１と天板３とを組み立てる。図１４で示すように、まず、側板１の突起１４を天板３のスリット３６に挿入する。この際、側板１の両縁に設けた凸部１２が天板２の前後の折り曲げ部３４の両縁に設けたスペースに嵌入するとともに、側板１の角隅部に設けた鍔１３が天板３の前後の折り曲げ部３４の下側に位置する。以上より、図１５で示すように側板１と天板３とが一体化する。
【００３６】
側板１の平面部分と天板３の立ち上がり部３１とをリベット９２で接合してある。また、側板１の凹部１１と底板２左右の折り曲げ部３４の先縁部とを溶接９１してある。側板１の凸部１２と天板３前後の立ち上がり部３１と折り曲げ部３３とを溶接９１してある。
【００３７】
以上のように各部材を組み立てることによって、図２に示すような筐体を構成することができるとともに、電気機器９を筐体に搭載することにより、電気機器装置を構成することができる。本発明に係る電気機器筐体は以下のような作用により耐震性能を向上させる。
【００３８】
先ず、電気機器筐体の左右方向に揺れが生じた場合、電気機器筐体は左右方向に大きな力が加わることになるが、本発明は、側板１を単数又は複数箇所垂直方向に曲げた構成にしたことにより、左右方向にかかる力は分散され、耐震性能を向上させることができる。本実施例においては、側板１を垂直方向にコの字型に折り曲げて凹部１１を形成したことにより、側板１を左右方向に折り曲げることが困難になる。即ち、側板１が単なる板状の場合に比べて、剛性が向上し、耐震性能を向上させることができる。
【００３９】
本発明では、側板１の上下に底板２及び天板３を接合してあるが、底板２及び天板３に立ち上がり部２１，３１を形成して、これら立ち上がり部２１，３１に側板１を接合し、箱型構造を構成したことにより剛性が向上する。また、側板１、底板２及び天板３の厚みがほぼ同じならば、単純に厚みが２倍になるため、接合部分が強化され、耐震性能がさらに向上する。
【００４０】
続いて、電気機器筐体の前後方向に揺れが生じた場合も、本発明は、側板１を単数又は複数箇所垂直方向に曲げた構成にしたことによる力の分散作用により、耐震性能を向上させることができる。また、本実施例においては、側板１を垂直方向にコの字型に折り曲げて凹部１１を形成したことにより、側板１を前後方向に折り曲げることが困難になり、側板１が単なる板状の場合に比べて、剛性が向上し、耐震性能を向上させることができる。
【００４１】
電気機器筐体が左右方向に力が加わると、側板１及び底板２に大きな力がかかる。本発明では、筐体の内部に側板１の凹部１１の折り曲げ面１５を補強する補強部材４を設けることにより、筐体の左右方向に対しても補強することができ、耐震性能がさらに向上する。
【００４２】
筐体の角隅部及び固定穴２６は歪エネルギーが集中する。本発明では、この角隅部及び固定穴２６に補強部材６を設けたことにより、地震波の影響を最も受ける筐体の角隅部及び固定穴２６を補強することができ、耐震性能がさらに向上する。なお、補強部材４，６の上に電気機器９が搭載されるため、電気機器９を収納する際に、電気機器９は補強部材４，６による影響を受けない。
【００４３】
本発明では、天板３にも補強部材５を接合してあるが、補強部材５を設けることにより、剛性が向上する。これに加え、本発明では、補強部材５に立ち上がり部５１を形成し、前後方向に設けた立ち上がり部５１を天板３に設けた立ち上がり部３５及び側板１凹部１１の折り曲げ部１５に接合し、左右方向に設けた立ち上がり部５１を天板３に設けた立ち上がり部３１に接合することにより、歪エネルギーを分散させることができ、その結果、耐震性能が向上する。
【００４４】
この発明により組み立てられた電気機器筐体の共振周波数と筐体上部の加速度応答倍率は、大きさ高さ２１００ｍｍ、幅６００ｍｍ、奥行き６００ｍｍで総質量４５０ｋｇの筐体の場合、前後方向の共振周波数が１９Ｈｚ、左右方向の共振周波数が１０Ｈｚ、前後後方の加速度応答倍率が１．１倍、左右方向の加速度応答倍率が１．８倍と極めて優秀であり、電源装置等の設置面積が小さく重量物を搭載する電気機器筐体には有効な耐震技術である。
【００４５】
【発明の効果】
本発明によれば、柱、梁並びに筋交いなどの柱状体の補強材を必要としないため、部品点数を減らすことができ、その上、側板の外面に単数又は複数の凹凸を垂直方向に形成したことにより、筐体側面においても剛性向上の構造であるため、耐震性能を向上させることができる効果がある。
【００４６】
本発明は、側板を垂直方向に曲げた構成にしたことにより、左右方向にかかる力は分散され、耐震性能を向上させることができる効果がある。さらに、側板を垂直方向にコの字型に折り曲げて凹部を形成したことにより、側板が単なる板状の場合に比べて、剛性が向上し、耐震性能を向上させることができる効果がある。
【００４７】
本発明では、底板及び天板に立ち上がり部を形成して、これら立ち上がり部に側板を接合した箱型構造を構成したことにより、剛性が向上する。また、側板と底板、及び側板と天板の厚みが増すため、接合部分が強化され、耐震性能がさらに向上する効果がある。
【００４８】
本発明では、筐体の内部に側板の凹部の折り曲げ面を補強する補強部材を設けることにより、筐体の左右方向に対しても補強することができ、耐震性能がさらに向上する効果がある。
【００４９】
本発明では、この角隅部及び固定穴に補強部材を設けたことにより、地震波の影響を最も受ける筐体の角隅部及び固定穴を補強することができ、耐震性能がさらに向上する効果がある。
【００５０】
本発明では、天板にも補強部材を接合してあることにより、筐体の天井部分も補強され、剛性が向上する効果がある。これに加え、本発明では、補強部材に立ち上がり部を形成し、前後方向に設けた立ち上がり部を天板に設けた立ち上がり部及び側板凹部の折り曲げ部に接合し、左右方向に設けた立ち上がり部を天板に設けた立ち上がり部に接合することにより、歪エネルギーを分散させることができ、その結果、耐震性能が向上する効果がある。
【００５１】
本発明では、側板及び／又は補強部材の上端及び／又は下端に突起を設けるとともに、底板、天板並びに／若しくは補強部材にスリットを形成し、突起にスリットを差し込んだことにより、組立性が向上する効果がある。
【図面の簡単な説明】
【図１】本発明に係る一実施例を示す全体の分解斜視図である。
【図２】図１図示実施例における全体の組立斜視図である。
【図３】図１図示実施例における一実施形態を示す斜視図である。
【図４】側板と底板とを組み立てる前の状態を示す斜視図である。
【図５】図４図示実施例における側板と底板とを組み立てた後の状態を示す斜視図である。
【図６】図４図示実施例における側板と底板とを接合した状態を示す斜視図である。
【図７】底板の四隅に補強部材を載置する前の状態を示した斜視図である。
【図８】底板の四隅に補強部材を載置した後の状態を示した斜視図である。
【図９】図７図示実施例における側板と底板とを組み立てる前の状態を示す斜視図である。
【図１０】図７図示実施例における側板と底板とを組み立てた後の状態を示す斜視図である。
【図１１】図７図示実施例における側板と底板とを接合した状態を示す斜視図である。
【図１２】天板に補強部材を装着する前の状態を示した斜視図である。
【図１３】天板に補強部材を装着した後の状態を示した斜視図である。
【図１４】図１２図示実施例における側板と天板とを組み立てる前の状態を示す斜視図である。
【図１５】図１２図示実施例における側板と天板とを組み立てた後の状態を示す斜視図である。
【図１６】図１２図示実施例における側板と天板とを接合した状態を示す斜視図である。
【符号の説明】
１側板
２底板
３天板
４，５，６補強部材
９電気機器
１１凹部
１２凸部
１３鍔
１４突起
１５折り曲げ面
２１立ち上がり部
２２切り込み
２３，２４折り曲げ部
２５スリット
２６固定穴
３１，３５立ち上がり部
３２切り込み
３３，３４折り曲げ部
３６スリット
４１突起
６１，６２側面
６３底面
６４スリット
６５固定穴
９１溶接
９２リベット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical equipment casing that houses one or more electrical equipments therein.
[0002]
[Prior art]
Conventionally, an electrical equipment casing in which one or a plurality of electrical equipments are housed inside is joined to each other to form the casing with a plurality of metal panels, and the panels are firmly coupled to each other. At least one coupling fitting that increases the rigidity of the corner, and an adhesive that uses a fastener together, and joining means for joining the panels and between the panel and the coupling fitting. It is configured to increase body rigidity and improve earthquake resistance (see Patent Document 1).
[0003]
Similarly, the electrical equipment casing was provided with a column frame in accordance with the shape of the side plate, the upper beam of this column frame was joined to the top plate, and the lower beam was joined to the bottom plate to reinforce the casing. (See Patent Document 2).
[0004]
[Patent Document 1]
JP-A-8-317514 (pages 4-5, FIG. 6)
[Patent Document 2]
JP 2002-84076 A (2nd page, FIG. 1)
[0005]
[Problems to be solved by the invention]
Each of the conventional examples is configured to increase the earthquake resistance. However, the former has high rigidity only at the corners of the casing. For example, when a plurality of large devices such as rectifiers for large devices are stacked and stored, the entire casing becomes high, and the central portion of the side plate is less rigid than the corners. For this reason, there is a problem that a strong earthquake resistance cannot be obtained with only the corner corner rigidity.
[0006]
As for the latter, four pillar frames are provided inside the housing, but a strong earthquake resistance cannot be obtained. In addition, as the number of parts increases, a space for storing these column frames is required, and there is a problem that the casing becomes large.
[0007]
The present invention has been made in view of the above problems, and provides an electrical equipment housing that houses electrical equipment in an interior that can improve seismic performance and reduce the number of components.
[0008]
[Means to solve the problem]
The present invention made to achieve the above object does not require a column, a beam, a reinforcement such as a brace, so that the number of parts can be reduced, and in addition, the outer surface of the side plate has one or more. Since the unevenness is formed in the vertical direction, the structure has improved rigidity even on the side surface of the housing, so that the seismic performance can be improved.
[0009]
In the present invention, the side plate has a configuration in which one or more side plates are bent in the vertical direction, so that the force applied in the left-right direction is dispersed, and the seismic performance can be improved. Furthermore, the side plate is bent in a U-shape in the vertical direction to form a recess, so that the rigidity is improved and the seismic performance can be improved as compared with the case where the side plate is a simple plate.
[0010]
In the present invention, the rise is formed on the bottom plate and the top plate, and the box-type structure in which the side plate is joined to these rising portions is configured, whereby the rigidity is improved. Moreover, since the thickness of a side plate and a bottom plate, and a side plate and a top plate increases, a junction part is strengthened and seismic performance is further improved.
[0011]
In the present invention, by providing a reinforcing member that reinforces the bent surface of the concave portion of the side plate inside the casing, the casing can be reinforced in the left-right direction, and the seismic performance is further improved.
[0012]
In the present invention, by providing the reinforcing members at the corner corners and the fixing holes, the corner corners and the fixing holes of the casing that are most affected by the seismic wave can be reinforced, and the seismic performance is further improved.
[0013]
In the present invention, since the reinforcing member is also joined to the top plate, the ceiling portion of the housing is also reinforced, and the rigidity is improved. In addition, in the present invention, a rising portion is formed in the reinforcing member, a rising portion provided in the front-rear direction is joined to a rising portion provided in the top plate and a bent portion of the side plate concave portion, and a rising portion provided in the left-right direction is formed. By joining to the rising part provided in the top plate, the strain energy can be dispersed, and as a result, the seismic performance is improved.
[0014]
In the present invention, the side plate and / or the reinforcing member is provided with protrusions at the upper end and / or lower end, and slits are formed in the bottom plate, top plate and / or reinforcing member, and the assemblage is improved by inserting the slits into the protrusions. To do.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the electrical equipment casing of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an exploded view of an electrical equipment casing according to the present invention, and FIG. 2 shows an assembly drawing thereof. FIG. 3 shows one usage pattern of the casing. 1 is a side plate, 2 is a bottom plate, 3 is a top plate, 4 and 5 are reinforcing members, and 9 is an electrical device.
[0016]
This housing is composed of a side plate 1 which is symmetrically constituted by a plate-like panel, and a bottom plate 2 and a top plate 3 which are also constituted by plate-like panels. The side plate 1 is bent in the vertical direction to form irregularities. In this embodiment, the side plate 1 is bent in a U shape in the vertical direction to form two concave portions 11. Note that at least one recess 11 may be formed. Further, both edges of the side plate 1 are bent toward the bottom plate 2 or the top plate 3 to form a bent portion, and the bent portion is further bent inward so that the cross-section of both edges of the side plate 1 is a U-shape. Part 12 is formed. Further, a triangular ridge 13 is provided at the corner of the side plate 1.
[0017]
The bottom plate 2 is bent at four sides in the vertical direction to form a rising portion 21, and the side plate 1 is joined to the rising portion 21. Details of the bottom plate 2 will be described later. Similarly, the top plate 3 also has a rising portion 31 formed by bending four sides in the vertical direction, and the side plate 1 is joined to the rising portion 31. Details of the top plate 3 will be described later. A reinforcing member 4 is provided on the bottom plate 2 and a reinforcing member 5 is provided on the top plate 3 so that the bottom plate 2 and the top plate 3 are reinforced.
[0018]
When the side plate 1, the bottom plate 2, the top plate 3, and the reinforcing members 4 and 5 are assembled, a housing as shown in FIG. 2 can be formed, and a plurality of electrical devices 9 are stacked on this. The electric equipment apparatus shown in FIG. 3 can be configured.
[0019]
Next, specific means for configuring the electrical device casing as described above will be described. FIG. 4 to FIG. 6 are diagrams showing an explanation of assembling the side plate 1 and the bottom plate 2. Specifically, FIG. 4 is a view before assembly, FIG. 5 is an assembly view, and FIG. 6 is a view in which the side plate 1 and the bottom plate 2 are joined. 11 is a concave part, 12 is a convex part, 13 is a ridge, 21 is a rising part, 22 is a notch, and 23 and 24 are bent parts. In this embodiment, a triangular reinforcing member 4 that reinforces the bent surface 15 of the concave portion 11 of the side plate 1 is provided inside the housing.
[0020]
The bottom plate 2 is bent upward in the vertical direction to form a rising portion 21. In addition, when the side plate 1 is joined to the left and right edges of the bottom plate 2, notches 22 are formed according to the boundary between the concave portion 11 and the flat portion of the side plate 1, and the portion located in the concave portion 11 of the side plate 1 Is provided with a bent portion 23, which is bent inward so that the bent portion 23 is horizontal.
[0021]
A rising portion 21 is provided in front of and behind the bottom plate 2. The rising portion 21 is missing on the left and right sides, so that the convex portion 12 of the side plate 1 can be disposed in this portion. Further, the rising portion 21 provided at the front part is substantially the same height as the rising parts 21 provided at the left and right, whereas the rising part 21 provided at the rear is slightly higher than the rising parts 21 provided at the left and right. . These upper portions are bent inward to form a bent portion 24.
[0022]
It should be noted that the rear rising portion 21 is formed at the same height as the right and left rising portions 21 of the bottom plate 2 by forming a bent portion 24. Further, protrusions 14 and 41 are provided at the lower end of the concave portion 11 and the flange 13 of the side plate 1 and the lower end of the reinforcing member 4, and these protrusions are formed when the side plate 1 and the bottom plate 2 and the reinforcing member 4 and the bottom plate 2 are joined. A slit 25 is formed in a portion where the positions 14 and 41 are located.
[0023]
The side plate 1, the bottom plate 2, and the reinforcing member 4 configured as described above are joined as follows. First, the protrusion 14 of the side plate 1 is inserted into the slit 25 of the bottom plate 2. At this time, the convex portions 12 provided on both edges of the side plate 1 are fitted into the spaces provided on both edges of the bent portions 24 on the front and rear sides of the bottom plate 2, and the flanges 13 provided on the corners of the side plate 1 are formed on the bottom plate 2. The protrusion 14 of the flange 13 is inserted into the slit 25 of the bottom plate 2, which is positioned below the front and rear bent portions 24. Further, the protrusion 41 of the reinforcing member 4 is inserted into the slit 25 of the bottom plate 2. As described above, the side plate 1 and the bottom plate 2 are integrated as shown in FIG.
[0024]
The flat portion of the side plate 1 and the rising portion 21 of the bottom plate 2 are joined by a rivet 92. Further, the concave portion 11 of the side plate 1 and the leading edge portions of the bent portions 24 on the left and right sides of the bottom plate 2 are welded 91. The convex portion 12 of the side plate 1, the rising portion 21 around the bottom plate 2, and the bent portion 23 are welded 91. Further, the upper side of the reinforcing member 4 is welded 91 to the bent surface 15 of the convex portion 11 of the side plate 1, and the lower side of the reinforcing member 4 is welded 91 to the bottom plate 2.
[0025]
Next, FIGS. 7 to 11 show an embodiment different from the above. In this embodiment, in addition to the reinforcing member 4, a reinforcing member 6 for reinforcing the corners of the bottom plate 2 and the fixing hole 26 is provided. The fixing hole 26 is a hole formed to fix the housing to the ground. In this embodiment, the fixing hole 26 is formed at the front and rear corners and at substantially the center of both left and right edges. . Specifically, FIG. 7 is an exploded view before joining the reinforcing member 4 to the bottom plate 2, and FIG. 8 is an assembly view thereof. 9 is a view before the bottom plate 2 is assembled to the side plate 1, FIG. 10 is an assembled view thereof, and FIG. 11 is a view in which the side plate 1 and the bottom plate 2 are joined. In addition, about the side plate 1, the bottom plate 2, and the reinforcement member 4, since it is the structure substantially the same as the said Example, description is abbreviate | omitted.
[0026]
The reinforcing member 6 that reinforces the corners of the bottom plate 2 and the fixing hole 26 is a plate-like body having a rectangular bottom surface, and the cross-section of the side portion 61 of the reinforcing member 6 is L-shaped in accordance with the unevenness of the side plate 1. It has become. Specifically, one side surface can be joined to the rising portion 21 of the bottom plate 2, and the other side surface can be joined to one surface of the recess 11 of the side plate 1 when the side plate 1 and the bottom plate 2 are joined. It is. The other side surface is cut obliquely. Further, since the protrusion 14 is provided at the lower end of the flange 13 of the side plate 1, a slit 64 is also formed on the bottom surface of the reinforcing member 6. Further, the bottom surface of the reinforcing member 6 is configured to cover the fixing hole 26, and a fixing hole 65 having substantially the same shape as the fixing hole 26 is formed on the bottom surface.
[0027]
The side plate 1, the bottom plate 2 and the reinforcing members 4 and 6 configured as described above are joined as follows. First, the bottom plate 2 and the reinforcing member 6 are assembled. This is illustrated in FIG. The reinforcing member 6 is placed on each corner of the bottom plate 2. At this time, one side surface 61 of the reinforcing member 6 is aligned with the rising portion 21 of the bottom plate 2 and the other side surface 62 is aligned with the open surface in the front-rear direction.
[0028]
As in the above embodiment, as shown in FIG. 9, the protrusion 14 of the side plate 1 is inserted into the bottom plate 2 and the slits 25 and 64 of the reinforcing member 6, and the protrusion 41 of the reinforcing member 4 is inserted into the slit 25 of the bottom plate 2. . Thereby, as shown in FIG. 10, the side plate 1 and the bottom plate 2 are integrated.
[0029]
A flat portion of the side plate 1 and the bottom plate 2 are joined by a rivet 92. Further, the concave portion 11 of the side plate 1 and the leading edge portions of the bent portions 24 on the left and right sides of the bottom plate 2 are welded 91. The convex portion 12 of the side plate 1, the rising portion 21 around the bottom plate 2, and the bent portion 23 are welded 91. Further, the upper side of the reinforcing member 4 is welded 91 to the bent surface 15 of the concave portion 11 of the side plate 1, and the lower side of the reinforcing member 4 is welded 91 to the bottom plate 2. While the bottom surface 63 of the reinforcing member 6 is welded 91 to the bottom plate 2, one side surface 61 of the reinforcing member 6 is welded 91 to the rising portion 21 of the bottom plate 2, and the other side surface 62 is connected to the concave portion 11 of the side plate. It is welded 91.
[0030]
Next, FIG. 12 to FIG. 16 are diagrams showing an explanation of assembling the side plate 1 and the top plate 3. Specifically, FIG. 12 is an exploded view before joining the reinforcing member 5 to the top plate 3, and FIG. 13 is an assembly view thereof. 14 is a view before the top plate 3 is assembled to the side plate 1, FIG. 15 is an assembly view thereof, and FIG. 16 is a view in which the side plate 1 and the top plate 3 are joined. 31 and 35 are rising portions, 32 is a cut, and 33 and 34 are bent portions. In this embodiment, a rectangular reinforcing member 5 is provided.
[0031]
The top plate 3 is formed with a rising portion 31 by bending four sides downward in the vertical direction. In addition, when the side plate 1 is joined to the left and right edges of the top plate 3, notches 32 are formed in accordance with the boundary between the concave portion 11 and the flat portion of the side plate 1, and the bent surface of the concave portion 11 of the side plate 1 is also formed. 15 is provided with a bent portion 33 on the top plate 3 and is bent inward so that the bent portion 33 is horizontal. A space is provided on the top surface of the top plate 3 for wiring from the top plate 3. Moreover, the rising part 35 is formed in the left-right direction of the top plate 3, and it fits with the reinforcement member 5 mentioned later.
[0032]
A rising portion 31 is provided before and after the top 3. This rising portion 31 is missing on the left and right sides, so that the convex portion 12 of the side plate 1 can be disposed at this portion. Further, the rising portions 31 provided at the front and rear are slightly higher than the rising portions 31 provided at the left and right sides, and the upper portions thereof are bent inward to form the bent portions 34, and further, the rising portions 35 are bent downward to form the rising portions 35. It is formed. The front and rear rising portions 31 are formed at the same height as the left and right rising portions 31 of the top plate 3 by forming a bent portion 34.
[0033]
The reinforcing member 5 can be provided in the left-right direction of the top plate 3. The reinforcing member 5 is rectangular, and the long side is substantially parallel to the front and back sides of the top plate 3. A space is formed on the top surface 52 of the reinforcing member 5, and the rising portion 35 formed on the top plate 3 can be inserted into this space. Further, a protrusion 14 is provided at the upper end of the concave portion 11 and the flange 13 of the side plate 1, and a slit 36 is formed at a portion where the protrusion 14 is located when the side plate 1 and the top plate 3 are joined. The side plate 1 has substantially the same configuration as that of the above-described embodiment, and thus description thereof is omitted.
[0034]
The side plate 1, the top plate 3, and the reinforcing member 5 configured as described above are joined as follows. First, the top plate 3 and the reinforcing member 5 are assembled. This is illustrated in FIG. The reinforcing member 5 is attached to the central portion of the top plate 3. At this time, the rising portion 35 provided in the central portion of the top plate 3 is inserted into the space of the reinforcing member 5. Thereby, the short outer surface of the reinforcing member 5 is in contact with the central inner surface of the left and right rising portions 31 of the top plate 3. The top plate 3 and the reinforcing member 5 are joined from above the top plate 3 with rivets 92.
[0035]
Subsequently, the side plate 1 and the top plate 3 are assembled. As shown in FIG. 14, first, the protrusion 14 of the side plate 1 is inserted into the slit 36 of the top plate 3. At this time, the convex portions 12 provided on both edges of the side plate 1 are fitted into the spaces provided on both edges of the bent portions 34 before and after the top plate 2, and the flanges 13 provided at the corners of the side plate 1 are provided on the top plate. 3 is located below the front and rear bent portions 34. As described above, the side plate 1 and the top plate 3 are integrated as shown in FIG.
[0036]
The flat portion of the side plate 1 and the rising portion 31 of the top plate 3 are joined by a rivet 92. Further, the concave portion 11 of the side plate 1 and the leading edge portions of the bent portions 34 on the left and right sides of the bottom plate 2 are welded 91. The convex portion 12 of the side plate 1, the rising portion 31 around the top plate 3, and the bent portion 33 are welded 91.
[0037]
By assembling the members as described above, a housing as shown in FIG. 2 can be configured, and by mounting the electrical device 9 on the housing, an electrical device apparatus can be configured. The electrical equipment casing according to the present invention improves seismic performance by the following action.
[0038]
First, when a swing occurs in the left-right direction of the electrical equipment housing, a large force is applied to the electrical equipment housing in the left-right direction, but the present invention has a configuration in which the side plate 1 is bent in a single or a plurality of locations in the vertical direction. By doing so, the force applied in the left-right direction is dispersed, and the seismic performance can be improved. In this embodiment, the side plate 1 is bent in a U-shape in the vertical direction to form the concave portion 11, so that it is difficult to bend the side plate 1 in the left-right direction. That is, compared with the case where the side plate 1 is a simple plate, the rigidity is improved and the seismic performance can be improved.
[0039]
In the present invention, the bottom plate 2 and the top plate 3 are joined to the top and bottom of the side plate 1, but the rising portions 21 and 31 are formed on the bottom plate 2 and the top plate 3, and the side plate 1 is joined to the rising portions 21 and 31. However, the rigidity is improved by configuring the box structure. Further, if the thicknesses of the side plate 1, the bottom plate 2 and the top plate 3 are substantially the same, the thickness is simply doubled, so that the joint portion is strengthened and the seismic performance is further improved.
[0040]
Subsequently, even in the case where shaking occurs in the front-rear direction of the electrical equipment casing, the present invention improves the seismic performance by the action of dispersing force due to the configuration in which the side plate 1 is bent in a single or a plurality of vertical directions. be able to. In the present embodiment, the side plate 1 is bent in a U-shape in the vertical direction to form the concave portion 11, so that it becomes difficult to bend the side plate 1 in the front-rear direction, and the side plate 1 is simply a plate shape. Compared to the above, the rigidity is improved and the seismic performance can be improved.
[0041]
When a force is applied to the electric device casing in the left-right direction, a large force is applied to the side plate 1 and the bottom plate 2. In the present invention, by providing the reinforcing member 4 that reinforces the bent surface 15 of the concave portion 11 of the side plate 1 inside the casing, it can be reinforced in the horizontal direction of the casing, and the seismic performance is further improved. .
[0042]
Strain energy concentrates on the corners of the housing and the fixing holes 26. In the present invention, by providing the reinforcing member 6 at the corner corner and the fixing hole 26, the corner corner of the casing and the fixing hole 26 that are most affected by the seismic wave can be reinforced, and the seismic performance is further improved. To do. Since the electric device 9 is mounted on the reinforcing members 4 and 6, the electric device 9 is not affected by the reinforcing members 4 and 6 when the electric device 9 is stored.
[0043]
In the present invention, the reinforcing member 5 is also bonded to the top plate 3, but the rigidity is improved by providing the reinforcing member 5. In addition to this, in the present invention, the rising portion 51 is formed on the reinforcing member 5, the rising portion 51 provided in the front-rear direction is joined to the rising portion 35 provided on the top plate 3 and the bent portion 15 of the side plate 1 concave portion 11, By joining the rising portion 51 provided in the left-right direction to the rising portion 31 provided on the top plate 3, strain energy can be dispersed, and as a result, the earthquake resistance is improved.
[0044]
The resonance frequency and the acceleration response magnification of the upper part of the electrical device case assembled according to the present invention are as follows. In the case of a case having a height of 2100 mm, a width of 600 mm, a depth of 600 mm and a total mass of 450 kg, the resonance frequency in the front-rear direction is 19Hz, left / right resonance frequency is 10Hz, front / rear acceleration response magnification is 1.1 times, and left / right acceleration response magnification is 1.8 times. It is an effective seismic technology for the electrical equipment casing.
[0045]
【The invention's effect】
According to the present invention, since the reinforcing material for the columnar body such as columns, beams and braces is not required, the number of parts can be reduced, and moreover, one or more irregularities are formed in the vertical direction on the outer surface of the side plate. As a result, the structure has improved rigidity even on the side surface of the housing, so that there is an effect that the seismic performance can be improved.
[0046]
In the present invention, since the side plate is bent in the vertical direction, the force applied in the left-right direction is dispersed, and there is an effect that the seismic performance can be improved. Furthermore, the side plate is bent in a U-shape in the vertical direction to form a recess, so that the rigidity is improved and the seismic performance can be improved as compared with the case where the side plate is a simple plate.
[0047]
In the present invention, the rise is formed on the bottom plate and the top plate, and the box-type structure in which the side plate is joined to these rising portions is configured, whereby the rigidity is improved. Moreover, since the thickness of a side plate and a bottom plate, and a side plate and a top plate increases, a junction part is strengthened and there exists an effect which further improves a seismic performance.
[0048]
In the present invention, by providing a reinforcing member that reinforces the bent surface of the concave portion of the side plate inside the casing, it can be reinforced in the horizontal direction of the casing, and there is an effect of further improving the earthquake resistance.
[0049]
In the present invention, by providing reinforcing members at the corner corners and the fixing holes, the corner corners and the fixing holes of the casing that are most affected by the seismic wave can be reinforced, and the effect of further improving the seismic performance is obtained. is there.
[0050]
In the present invention, since the reinforcing member is also joined to the top plate, the ceiling portion of the housing is also reinforced, and the rigidity is improved. In addition, in the present invention, a rising portion is formed in the reinforcing member, a rising portion provided in the front-rear direction is joined to a rising portion provided in the top plate and a bent portion of the side plate concave portion, and a rising portion provided in the left-right direction is formed. By joining to the rising part provided in the top plate, strain energy can be dispersed, and as a result, there is an effect that the seismic performance is improved.
[0051]
In the present invention, the side plate and / or the reinforcing member is provided with protrusions at the upper end and / or lower end, and slits are formed in the bottom plate, top plate and / or reinforcing member, and the assemblage is improved by inserting the slits into the protrusions. There is an effect to.
[Brief description of the drawings]
FIG. 1 is an overall exploded perspective view showing an embodiment according to the present invention.
FIG. 2 is an overall assembly perspective view of the embodiment shown in FIG. 1;
FIG. 3 is a perspective view showing an embodiment in the embodiment shown in FIG. 1;
FIG. 4 is a perspective view showing a state before a side plate and a bottom plate are assembled.
5 is a perspective view showing a state after the side plate and the bottom plate in the embodiment shown in FIG. 4 are assembled. FIG.
6 is a perspective view showing a state in which the side plate and the bottom plate in the embodiment shown in FIG. 4 are joined together. FIG.
FIG. 7 is a perspective view showing a state before reinforcing members are placed at the four corners of the bottom plate.
FIG. 8 is a perspective view showing a state after reinforcing members are placed at the four corners of the bottom plate.
FIG. 9 is a perspective view showing a state before the side plate and the bottom plate are assembled in the embodiment shown in FIG. 7;
FIG. 10 is a perspective view showing a state after the side plate and the bottom plate are assembled in the embodiment shown in FIG. 7;
FIG. 11 is a perspective view showing a state in which the side plate and the bottom plate are joined in the embodiment shown in FIG. 7;
FIG. 12 is a perspective view showing a state before a reinforcing member is attached to the top plate.
FIG. 13 is a perspective view showing a state after a reinforcing member is mounted on the top plate.
14 is a perspective view showing a state before the side plate and the top plate are assembled in the embodiment shown in FIG.
15 is a perspective view showing a state after assembling the side plate and the top plate in the embodiment shown in FIG.
FIG. 16 is a perspective view showing a state in which the side plate and the top plate are joined in the embodiment shown in FIG. 12;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side plate 2 Bottom plate 3 Top plate 4, 5, 6 Reinforcement member 9 Electric equipment 11 Concave part 12 Convex part 13 ridge 14 Projection 15 Bending surface 21 Standing part 22 Cut 23, 24 Bending part 25 Slit 26 Fixing hole 31, 35 Standing part 32 Notches 33, 34 Bending portion 36 Slit 41 Protrusion 61, 62 Side surface 63 Bottom surface 64 Slit 65 Fixing hole 91 Welding 92 Rivet

Claims

In a housing that houses electrical equipment inside, it is configured by providing plate-like side plates on the left and right sides, bending these side plates in the vertical direction to form irregularities, and joining the bottom plate and top plate above and below these side plates. The front and rear edges of the side plate are bent into a U-shape to form convex portions, and the convex portions provided at the front edge of the side plate are convex in the forward direction, whereas The convex portion provided on the edge is convex in the rear direction, the bottom plate and the top plate are configured by a plate-like body, the first bent portion is provided on the front and rear edges of the bottom plate and the top plate , and the bottom plate The first bent portion is bent vertically upward with respect to the front side and back side edges, and a gap is provided by partially cutting the left and right edges of the bent portion upward from the left and right sides toward the center portion . a second bent portion provided by bending the tip portion of one bent portion inward, said Wherein fitting the convex portion of the side plate into the gap between the left and right edges of the one bent portion, those portions which are located at both edges in a state before folding the side plates to a U-shape to each of the second bent portion Further, the side plate and the bottom plate are integrated by joining the portion located on both edges and the second bent portion in a state before the contacted side plate is folded into a U-shape. In addition, the first bent portion of the top plate is bent vertically downward with respect to the front side and back side edges, and the side plate is joined to the left and right edges of the vertically bent portion. An electrical equipment housing that is integrated with a top plate .

The electric device casing according to claim 1, wherein the side plate is bent in a U-shape in the vertical direction to form a recess.

The electrical equipment casing according to claim 2, wherein a reinforcing member for reinforcing a bent surface of the concave portion of the side plate is provided, and the reinforcing member is joined to the bent surface of the concave portion and the bottom plate.

The electric equipment casing according to any one of claims 1 to 3 , wherein a flange is provided at a corner of the side plate.

In the first bent portion provided on the left and right edges of the bottom plate and / or the top plate, cuts are formed in the vertical direction in accordance with the shape of the unevenness formed on the side plate, and the inner surface of the convex portion of the side plate The electrical equipment casing according to any one of claims 1 to 4 , wherein an outer surface of the first bent portion is joined to the first casing.

Wherein the front and rear edge of the bottom plate and / or top plate provided a first bent portion, further characterized in that is provided with a second bent portion by bending the tip portion of the first bending portion inwardly The electrical equipment housing according to claim 1.

The electrical equipment casing according to any one of claims 1 to 6, wherein a reinforcing member that shares a corner portion and strain hole center where strain energy of the bottom plate is concentrated is joined.

The reinforcing member is a plate-like body, and the cross-section of the side portion of the reinforcing member is L-shaped to match the unevenness of the side plate, and the reinforcing member is joined to the bottom plate and the side plate. The electrical equipment housing according to claim 7.

The electrical equipment casing according to any one of claims 1 to 8, wherein a reinforcing member is provided on the inner side of the top plate and is joined to the top plate.

The electrical equipment casing according to claim 9, wherein the reinforcing member has a rising portion at least on each of the left and right edges, and the rising portion is joined to the rising portion of the top plate.

11. The electrical equipment casing according to claim 9, wherein rising portions are provided at front and rear edges of the reinforcing member, and the rising portions are joined to a bent surface of the side plate.

Protrusions are provided at the upper and / or lower ends of the side plate and / or the reinforcing member, a slit is formed in the bottom plate, the top plate, and / or the reinforcing member, and the slit is inserted into the protrusion. The electrical equipment casing according to any one of claims 1 to 11.

The electrical equipment case according to claim 1, wherein the joining is performed by welding.

The electrical equipment casing according to claim 1, wherein the joining is performed by rivets.