JP6001819B2 - Soundproofing equipment for electrical equipment - Google Patents

Soundproofing equipment for electrical equipment Download PDF

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Publication number
JP6001819B2
JP6001819B2 JP2010257729A JP2010257729A JP6001819B2 JP 6001819 B2 JP6001819 B2 JP 6001819B2 JP 2010257729 A JP2010257729 A JP 2010257729A JP 2010257729 A JP2010257729 A JP 2010257729A JP 6001819 B2 JP6001819 B2 JP 6001819B2
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plate portion
wall plate
electric device
soundproofing
housing
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JP2012108355A (en
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優一 石田
優一 石田
孝夫 大塚
孝夫 大塚
森本 浩史
浩史 森本
高橋 秀明
秀明 高橋
靖弘 榎
靖弘 榎
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Electric Power Development Co Ltd
Nissin Electric Co Ltd
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Electric Power Development Co Ltd
Nissin Electric Co Ltd
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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
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Description

本発明は、例えば、コンデンサ、変圧器やリアクトル等の電気機器において、その電気機器が発する振動等に起因する騒音を低減する電気機器用防音装置に関する。   The present invention relates to a soundproofing device for an electric device that reduces noise caused by vibration generated by the electric device in an electric device such as a capacitor, a transformer, and a reactor.

例えば、電気機器の一つであるコンデンサにおいては、交流電圧印加によって素子内部振動が発生し、この振動に起因して騒音が発生する。この種の電気機器1は、図4に示すように、電気機器1が発する騒音を低減させるための防音装置3と共に現地のコンクリート基礎2上に設置される(例えば、特許文献1参照)。この電気機器1および防音装置3の設置作業は以下の手順でもって行われる。   For example, in a capacitor, which is one of electric devices, internal vibration of an element is generated by applying an alternating voltage, and noise is generated due to the vibration. As shown in FIG. 4, this type of electric device 1 is installed on a local concrete foundation 2 together with a soundproofing device 3 for reducing noise generated by the electric device 1 (see, for example, Patent Document 1). The installation work of the electrical equipment 1 and the soundproofing device 3 is performed according to the following procedure.

まず、現地のコンクリート基礎2に電気機器用ベース4を埋設し、その電気機器用ベース4上に防振部材5を介して電気機器1を設置する。このように、コンクリート基礎2と電気機器1との間に防振部材5を介在させることにより、電気機器1が発する振動がコンクリート基礎2に伝わらないようにしている。この電気機器1がコンデンサの場合、ハウジング6に収容された構成要素7から発せられる振動の伝搬方向が図中の矢印で示すように横方向となっていることから、電気機器1の四方側面と上面を覆うように防音装置3を設置する。   First, the electric equipment base 4 is embedded in the local concrete foundation 2, and the electric equipment 1 is installed on the electric equipment base 4 via the vibration isolation member 5. In this way, the vibration isolation member 5 is interposed between the concrete foundation 2 and the electric device 1 so that vibrations generated by the electric device 1 are not transmitted to the concrete foundation 2. In the case where the electric device 1 is a capacitor, the propagation direction of vibrations emitted from the component 7 accommodated in the housing 6 is horizontal as indicated by the arrows in the figure. The soundproofing device 3 is installed so as to cover the upper surface.

この防音装置3は、電気機器1の四方側面を囲撓する壁板部8と、その壁板部8の上方開口部を閉塞する天板部9とで構成されている。コンクリート基礎2に防音装置用ベース10を埋設し、壁板部8および天板部9を組み立てその壁板部8を防音装置用ベース10上に設置して溶接等により固定している。   The soundproofing device 3 includes a wall plate portion 8 that bends and surrounds the four side surfaces of the electric device 1 and a top plate portion 9 that closes an upper opening of the wall plate portion 8. The soundproofing device base 10 is embedded in the concrete foundation 2, the wall plate portion 8 and the top plate portion 9 are assembled, and the wall plate portion 8 is placed on the soundproofing device base 10 and fixed by welding or the like.

なお、壁板部8の内面には吸音材11が取り付けられている。また、電気機器1のハウジング6の上面に設けられた内部碍子12と、防音装置3の天板部9に設けられた外部碍子13とを電気的に接続することにより、電気機器1の入出力端子を外部に導出した構造としている。   A sound absorbing material 11 is attached to the inner surface of the wall plate portion 8. In addition, by electrically connecting the internal insulator 12 provided on the upper surface of the housing 6 of the electrical device 1 and the external insulator 13 provided on the top plate portion 9 of the soundproofing device 3, input / output of the electrical device 1 is achieved. The structure is such that the terminals are led out to the outside.

特開2003−308073号公報JP 2003-308073 A

ところで、前述した従来の電気機器用防音装置3では、電気機器用ベース4および防音装置用ベース10をコンクリート基礎2に埋め込む作業、防音装置3の壁板部8を防音装置用ベース10に溶接する作業などで非常に手間がかかり、現地での組み立て工数などの多大なコストがかかるという問題があった。   By the way, in the conventional electrical equipment soundproofing device 3 described above, the work of embedding the electrical equipment base 4 and the soundproofing device base 10 in the concrete foundation 2 and the wall plate portion 8 of the soundproofing device 3 are welded to the soundproofing device base 10. There was a problem that it took a lot of labor for the work, and it took a lot of cost such as assembly work in the field.

また、従来の防音装置3は、電気機器1のハウジング全体を取り囲む構造を採用していることから、電気機器1のハウジング6の内部碍子12と防音装置3の天板部9の外部碍子13とを電気的に接続しなければならず、構成部材の数も多くなるという問題もあった。   In addition, since the conventional soundproofing device 3 employs a structure that surrounds the entire housing of the electrical device 1, the internal insulator 12 of the housing 6 of the electrical device 1 and the external insulator 13 of the top plate portion 9 of the soundproofing device 3 Must be electrically connected to each other, and the number of constituent members also increases.

そこで、本発明は前述した問題点に鑑みて提案されたもので、その目的とするところは、従来と同等の防音性能を維持しつつ、現地での設置作業を簡易にしてコスト低減を図り得るコンパクトな電気機器用防音装置を提供することにある。   Therefore, the present invention has been proposed in view of the above-described problems, and the object of the present invention is to reduce the cost by simplifying the installation work at the site while maintaining the soundproof performance equivalent to the conventional one. The object is to provide a compact soundproofing device for electrical equipment.

前述の目的を達成するための技術的手段として、本発明は、基礎上に載置されるベースが取付けられた底板部と、その底板部の周縁部から起立するように一体的に設けられた壁板部とを備え、電気機器のハウジングを壁板部の内側に収容すると共に防振部材を介して底板部上に固定し、電気機器のハウジングの開口部を、電気機器の入出力端子を外部に導出するための碍子が設けられた蓋板部で閉塞すると共に、その蓋板部を壁板部の開口部に覆い被せ、蓋板部は、その周縁部を屈曲させて壁板部の外周面に沿って延在するフランジ部を有し、そのフランジ部の内周面と壁板部の外周面との間に隙間を設けると共に、壁板部の外周面のフランジ部対向部位に防振部材を配設したことを特徴とする。 As a technical means for achieving the above-described object, the present invention is provided integrally with a base plate portion to which a base placed on a foundation is attached and an upright portion from the peripheral edge portion of the base plate portion. A wall plate portion, housing the housing of the electric device inside the wall plate portion and fixing it on the bottom plate portion via a vibration isolating member, and connecting the opening of the electric device housing to the input / output terminal of the electric device The lid plate part provided with an insulator for leading to the outside is closed, and the lid plate part is covered with the opening part of the wall plate part. The flange portion extends along the outer peripheral surface, and a gap is provided between the inner peripheral surface of the flange portion and the outer peripheral surface of the wall plate portion, and at the flange portion facing portion of the outer peripheral surface of the wall plate portion. A vibration member is provided.

本発明では、電気機器のハウジングの開口部を蓋板部で閉塞すると共に、その蓋板部を壁板部の開口部に覆い被せたことにより、この蓋板部は、従来の防音装置の天板部と電気機器のハウジングの一部とに兼用された機能を発揮する。これにより、防音装置のコンパクト化が図れる。   In the present invention, the opening portion of the housing of the electric device is closed with the lid plate portion, and the lid plate portion is covered with the opening portion of the wall plate portion. It functions as a plate and a part of the housing of the electric device. As a result, the soundproofing device can be made compact.

また、電気機器のハウジングを壁板部の内側に収容すると共に防振部材を介して底板部上に固定し、その底板部にベースが取り付けられた構造としていることから、電気機器と防音装置とのユニット化が可能となり、電気機器を組み込んだ防音装置を基礎上に設置するだけで済むため、従来と同等の防音性能を維持しつつ、現地での設置作業の簡易化が図れる。   In addition, since the housing of the electric device is housed inside the wall plate portion and fixed on the bottom plate portion via a vibration isolating member, and the base is attached to the bottom plate portion, the electric device, the soundproofing device, The unit can be unitized, and it is only necessary to install a soundproofing device incorporating electric equipment on the foundation, so that the installation work at the site can be simplified while maintaining the soundproofing performance equivalent to the conventional one.

本発明では、蓋板部の周縁部を屈曲させて壁板部の外周面に沿って延在するフランジ部を設けたことにより、電気機器を屋外に設置する場合であっても、防音装置の外部から雨水が侵入しにくい構造とすることができる。また、フランジ部の内周面と壁板部の外周面との間に隙間を設けたことにより、蓋板部を組み付けるに際し、壁板部に対する位置決め誤差を吸収することができる。さらに、その壁板部の外周面のフランジ部対向部位に防振部材を配設したことにより、フランジ部が壁板部に当接した状態となっても、蓋板部から伝わってくる電気機器の振動を防振部材で吸収し、壁板部および底板部を介して基礎に伝わらないようにすることができる。 In the present invention, by providing a flange portion that bends the peripheral edge portion of the lid plate portion and extends along the outer peripheral surface of the wall plate portion, even when the electric device is installed outdoors, The structure can prevent rainwater from entering from the outside. Further, by providing a gap between the inner peripheral surface of the flange portion and the outer peripheral surface of the wall plate portion, positioning errors with respect to the wall plate portion can be absorbed when the cover plate portion is assembled. Further, the electric device transmitted from the cover plate portion even if the flange portion is in contact with the wall plate portion by arranging the vibration isolating member at the flange portion facing portion of the outer peripheral surface of the wall plate portion. Can be prevented from being transmitted to the foundation via the wall plate portion and the bottom plate portion.

本発明における電気機器は、ハウジングの内周に空間を介して区画壁部を備え、その区画壁部の内部に、電気機器を構成する要素(以下、単に構成要素と称す)を収容した構造が望ましい。 The electrical device in the present invention has a structure in which a partition wall portion is provided on the inner periphery of the housing via a space, and an element (hereinafter simply referred to as a component) constituting the electrical device is accommodated in the partition wall portion. desirable.

このようにすれば、構成要素を区画壁部とハウジングの二重構造で収容することができ、構成要素で発する振動に起因する騒音は、区画壁部、空間およびハウジングを経て電気機器の外部に出ることになり、防音性能がより一層向上する。   In this way, the component can be accommodated in a double structure of the partition wall portion and the housing, and noise caused by vibrations generated by the component is transmitted to the outside of the electric device through the partition wall portion, the space, and the housing. The soundproof performance will be further improved.

本発明によれば、電気機器のハウジングの開口部を蓋板部で閉塞すると共に、その蓋板部を壁板部の開口部に覆い被せたことにより、この蓋板部が、従来の防音装置の天板部と電気機器のハウジングの一部とに兼用された機能を持つことから、防音装置のコンパクト化が図れる。また、電気機器のハウジングを壁板部の内側に収容すると共に防振部材を介して底板部上に固定し、その底板部にベースが取り付けられた構造としていることから、電気機器と防音装置とのユニット化が可能となり、電気機器を組み込んだ防音装置を基礎上に設置するだけで済むため、現地での設置作業の簡易化が図れる。その結果、従来と同等の防音性能を維持しつつ、現地での設置作業を簡易にしてコスト低減を図り得るコンパクトな電気機器用防音装置を提供できる。   According to the present invention, the opening portion of the housing of the electric device is closed with the lid plate portion, and the lid plate portion is covered with the opening portion of the wall plate portion. The soundproofing device can be made compact because it has a function shared by both the top plate portion and the housing of the electric device. In addition, since the housing of the electric device is housed inside the wall plate portion and fixed on the bottom plate portion via a vibration isolating member, and the base is attached to the bottom plate portion, the electric device, the soundproofing device, Can be unitized, and it is only necessary to install a soundproofing device incorporating electric equipment on the foundation, so that installation work at the site can be simplified. As a result, it is possible to provide a compact soundproofing device for electrical equipment that can reduce the cost by simplifying the installation work at the site while maintaining the soundproofing performance equivalent to the conventional one.

本発明の実施形態で、電気機器用防音装置を示す断面図である。It is sectional drawing which shows the soundproofing apparatus for electric devices in embodiment of this invention. 図1のA部拡大断面図である。It is the A section expanded sectional view of FIG. (A)は図1の電気機器の内部構造を示す正断面図、(B)は図1の電気機器の内部構造を示す平断面図である。(A) is a front sectional view showing the internal structure of the electrical device of FIG. 1, and (B) is a plan sectional view showing the internal structure of the electrical device of FIG. 従来の電気機器用防音装置を示す断面図である。It is sectional drawing which shows the conventional soundproofing device for electric devices.

本発明に係る電気機器用防音装置の実施形態を以下に詳述する。なお、以下の実施形態では、電気機器としてコンデンサを例示するが、変圧器やリアクトル等の他の電気機器、つまり、振動等に起因する騒音を低減させる必要がある電気機器に適用可能である。この電気機器用防音装置は、通常、屋外に設置される。   An embodiment of a soundproofing device for an electrical apparatus according to the present invention will be described in detail below. In the following embodiments, a capacitor is illustrated as an electrical device, but the present invention can be applied to other electrical devices such as a transformer and a reactor, that is, an electrical device that needs to reduce noise caused by vibration or the like. This electrical equipment soundproofing device is usually installed outdoors.

この実施形態における電気機器用防音装置21は、図1に示すように、コンクリート基礎22上に載置されるH型鋼などのベース23が取付けられた平面矩形状の底板部24と、その底板部24の周縁部から起立するように一体的に設けられた壁板部25と、その壁板部25の内側に収容された電気機器26のハウジング27の上方開口部を閉塞すると共に壁板部25の上方開口部に覆い被せられた蓋板部28とを備えている。   As shown in FIG. 1, the soundproofing device 21 for an electrical device in this embodiment includes a bottom plate portion 24 having a rectangular plane shape to which a base 23 such as H-shaped steel placed on a concrete foundation 22 is attached, and the bottom plate portion. The wall plate portion 25 integrally provided so as to stand up from the peripheral portion of the 24 and the upper opening portion of the housing 27 of the electric device 26 accommodated inside the wall plate portion 25 are closed and the wall plate portion 25. And a cover plate portion 28 that covers the upper opening of the cover plate.

なお、電気機器26の周囲四方を囲撓する壁板部25の内面には吸音材29が取り付けられている。また、壁板部25の外面には、運搬時や設置時に防音装置全体を吊り下げるための吊手30が設けられている。   A sound absorbing material 29 is attached to the inner surface of the wall plate portion 25 that bends around the four sides of the electric device 26. A suspension 30 is provided on the outer surface of the wall plate 25 to suspend the entire soundproofing device during transportation or installation.

蓋板部28は、電気機器26のハウジング27の上方開口部に対してその上方開口部を隙間なく密封するように閉塞し、図2に示すように、壁板部25の上方開口部に対してその上方開口部との間に隙間31を介在させるようにして覆い被せられている。また、蓋板部28は、その周縁部を屈曲させて壁板部25の外周面に沿って延在するフランジ部32を有する。そのフランジ部32の内周面と壁板部25の外周面との間に隙間33を設けると共に、その壁板部25の外周面のフランジ部対向部位に防振ゴム等の防振部材34を全周に亘って配設している。   The lid plate portion 28 is closed so that the upper opening portion of the housing 27 of the electric device 26 is sealed without gaps, and the upper opening portion of the wall plate portion 25 is sealed as shown in FIG. A gap 31 is interposed between the upper opening and the upper opening. The lid plate portion 28 has a flange portion 32 that extends along the outer peripheral surface of the wall plate portion 25 by bending its peripheral edge portion. A gap 33 is provided between the inner peripheral surface of the flange portion 32 and the outer peripheral surface of the wall plate portion 25, and a vibration isolating member 34 such as an anti-vibration rubber is provided on the flange portion facing portion of the outer peripheral surface of the wall plate portion 25. It is arranged over the entire circumference.

なお、この蓋板部28には、電気機器26の入出力端子を外部に導出するための碍子35が設けられている。また、蓋板部28の上面には、運搬時や組付時に蓋板部28を吊り下げるための吊手36が設けられている。   The lid plate portion 28 is provided with an insulator 35 for leading the input / output terminal of the electric device 26 to the outside. Further, on the upper surface of the lid plate portion 28, there is provided a suspension 36 for hanging the lid plate portion 28 during transportation or assembly.

壁板部25の内側に収容された電気機器26は、そのハウジング27の底部と底板部24との間に配設された防振ゴム等の防振部材37を介して底板部24上にボルト38により締め付け固定される。このように、電気機器26と底板部24との間に防振部材37を介在させることにより、電気機器26が発する振動が底板部24を介してコンクリート基礎22に伝わらないようにして騒音の発生を抑制している。なお、ボルト38についても防振ゴム等の防振部材43を介して取り付けられている。   The electric device 26 housed inside the wall plate portion 25 is bolted onto the bottom plate portion 24 via a vibration isolating member 37 such as a vibration isolating rubber disposed between the bottom portion of the housing 27 and the bottom plate portion 24. Tightened and fixed by 38. In this way, by providing the vibration isolating member 37 between the electric device 26 and the bottom plate portion 24, the vibration generated by the electric device 26 is not transmitted to the concrete foundation 22 via the bottom plate portion 24, thereby generating noise. Is suppressed. The bolt 38 is also attached through a vibration isolating member 43 such as a vibration isolating rubber.

この電気機器26がコンデンサの場合、ハウジング27に収容された構成要素39から発せられる振動の伝搬方向が図中の矢印で示すように横方向となっていることから、電気機器26の四方側面と上面を覆うように底板部24に一体に設けられた壁板部25と蓋板部28とで防音装置21を構成している。   In the case where the electric device 26 is a capacitor, the propagation direction of vibrations emitted from the component 39 accommodated in the housing 27 is horizontal as indicated by the arrows in the figure. The wall plate portion 25 and the cover plate portion 28 that are integrally provided on the bottom plate portion 24 so as to cover the upper surface constitute the soundproof device 21.

また、電気機器26は、図3(A)(B)に示すように、ハウジング27の内周に空間40を介して区画壁部41を備え、その区画壁部41の内部に絶縁油42を充填した状態で構成要素39(コンデンサ要素)を収容した構造を具備している。なお、電気機器26は、同図(B)に示すように区画壁部41の四方に独立した空間40を設けた構造以外に、区画壁部41の周囲に連続した環状空間を設けた構造であってもよい。   As shown in FIGS. 3A and 3B, the electric device 26 includes a partition wall portion 41 on the inner periphery of the housing 27 via a space 40, and an insulating oil 42 is provided inside the partition wall portion 41. A structure in which the component 39 (capacitor element) is accommodated in a filled state is provided. The electrical device 26 has a structure in which an annular space continuous around the partition wall portion 41 is provided in addition to the structure in which the independent spaces 40 are provided on the four sides of the partition wall portion 41 as shown in FIG. There may be.

以上の構成からなる電気機器用防音装置21では、電気機器26のハウジング27の上方開口部を蓋板部28で閉塞すると共に、その蓋板部28を壁板部25の上方開口部に覆い被せたことにより、この蓋板部28が、従来の防音装置3(図4参照)の天板部9と電気機器1のハウジング6の一部(上部)とに兼用された機能を発揮する。これにより、防音装置21のコンパクト化が図れる。また、電気機器26に蓋板部28を直接的に取り付け、その蓋板部28に碍子35を設けた構造であることから、従来の防音装置3における内部碍子12と外部碍子13とを電気的に接続する構造(図4参照)が省略できる点で、部品点数の削減も図れる。   In the electrical equipment soundproofing device 21 configured as described above, the upper opening of the housing 27 of the electrical equipment 26 is closed by the lid plate portion 28, and the lid plate portion 28 is covered with the upper opening portion of the wall plate portion 25. As a result, the lid plate portion 28 exhibits a function shared by the top plate portion 9 of the conventional soundproofing device 3 (see FIG. 4) and a part (upper portion) of the housing 6 of the electric device 1. Thereby, the soundproofing device 21 can be made compact. Further, since the lid plate portion 28 is directly attached to the electric device 26 and the insulator 35 is provided on the lid plate portion 28, the internal insulator 12 and the external insulator 13 in the conventional soundproofing device 3 are electrically connected. The number of parts can be reduced in that the structure (see FIG. 4) for connecting to can be omitted.

このように、蓋板部28が従来の防音装置3(図4参照)の天板部9と電気機器1の一部とに兼用され、壁板部25の内側に収容した電気機器26を底板部24上に固定し、その底板部24にベース23が取り付けられた構造としている。このことから、電気機器26と防音装置21とのユニット化が可能となり、工場で電気機器26を組み込んだ防音装置21を現場に搬入してコンクリート基礎22上に設置するだけで済むため、従来と同等の防音性能を維持しつつ、現地での設置作業の簡易化が図れる。   As described above, the lid plate portion 28 is also used as the top plate portion 9 of the conventional soundproofing device 3 (see FIG. 4) and a part of the electric device 1, and the electric device 26 housed inside the wall plate portion 25 is the bottom plate. The base 23 is fixed on the portion 24 and the base 23 is attached to the bottom plate portion 24. From this, it is possible to unitize the electric device 26 and the soundproofing device 21, and it is only necessary to bring the soundproofing device 21 incorporating the electric device 26 into the site and install it on the concrete foundation 22 at the factory. The installation work at the site can be simplified while maintaining the same soundproof performance.

また、蓋板部28が、図2に示すように、壁板部25の上方開口部に対してその上方開口部との間に隙間31を介在させた構造となっていることにより、電気機器26から発せられた振動が蓋板部28から壁板部25および底板部24を介してコンクリート基礎22に伝わらないようにして騒音の発生を抑制している。また、蓋板部28の周縁部にフランジ部32を設けていることから、電気機器26を屋外に設置する場合であっても、防音装置21の外部から雨水が侵入しにくい構造となっている。   Further, as shown in FIG. 2, the cover plate portion 28 has a structure in which a gap 31 is interposed between the upper opening portion of the wall plate portion 25 and the upper opening portion thereof, thereby The generation of noise is suppressed by preventing vibration generated from 26 from being transmitted from the cover plate portion 28 to the concrete foundation 22 via the wall plate portion 25 and the bottom plate portion 24. Moreover, since the flange part 32 is provided in the peripheral part of the cover board part 28, even when the electric equipment 26 is installed outdoors, it has a structure in which rainwater does not easily enter from the outside of the soundproofing device 21. .

ここで、フランジ部32の内周面と壁板部25の外周面との間に隙間33を設けているので、蓋板部28を組み付けるに際し、壁板部25に対して水平方向での位置決め誤差を吸収することができる。さらに、その壁板部25の外周面のフランジ部対向部位に防振部材34を全周に亘って配設していることから、フランジ部32が壁板部25に当接した状態となっても、蓋板部28から伝わってくる電気機器26の振動を防振部材34で吸収し、壁板部25および底板部24を介してコンクリート基礎22に伝わらないようにして騒音の発生を抑制している。   Here, since the gap 33 is provided between the inner peripheral surface of the flange portion 32 and the outer peripheral surface of the wall plate portion 25, the horizontal positioning with respect to the wall plate portion 25 is performed when the lid plate portion 28 is assembled. The error can be absorbed. Further, since the vibration isolating member 34 is disposed over the entire circumference at the flange portion facing portion of the outer peripheral surface of the wall plate portion 25, the flange portion 32 is in contact with the wall plate portion 25. In addition, the vibration of the electric device 26 transmitted from the cover plate portion 28 is absorbed by the vibration isolation member 34 and is not transmitted to the concrete foundation 22 through the wall plate portion 25 and the bottom plate portion 24, thereby suppressing the generation of noise. ing.

さらに、電気機器26は、図3(A)(B)に示すように、絶縁油42を充填した状態で構成要素39(コンデンサ要素)を収容した区画壁部41と、その区画壁部41との間に空間40を介在させたハウジング27との二重構造を具備していることから、構成要素39で発せられた振動に起因する騒音は、区画壁部41、空間40およびハウジング27を経て電気機器26の外部に出ることになり、電気機器26の外部に出る騒音をより一層抑制することが容易になっている。   Further, as shown in FIGS. 3A and 3B, the electric device 26 includes a partition wall portion 41 that houses the component 39 (capacitor element) in a state where the insulating oil 42 is filled, and the partition wall portion 41. Since a double structure with the housing 27 having the space 40 interposed therebetween is provided, noise caused by vibration generated by the component 39 passes through the partition wall portion 41, the space 40 and the housing 27. It goes out of the electric equipment 26, and it becomes easy to further suppress the noise going out of the electric equipment 26.

本発明は前述した実施形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲内において、さらに種々なる形態で実施し得ることは勿論のことであり、本発明の範囲は、特許請求の範囲によって示され、さらに特許請求の範囲に記載の均等の意味、および範囲内のすべての変更を含む。   The present invention is not limited to the above-described embodiments, and can of course be implemented in various forms without departing from the gist of the present invention. It includes the equivalent meanings recited in the claims and the equivalents recited in the claims, and all modifications within the scope.

22 基礎(コンクリート基礎)
23 ベース
24 底板部
25 壁板部
26 電気機器
27 ハウジング
28 蓋板部
32 フランジ部
33 隙間
34 防振部材
37 防振部材
39 構成要素
40 空間
41 区画壁部
22 Foundation (concrete foundation)
23 Base 24 Bottom plate portion 25 Wall plate portion 26 Electrical equipment 27 Housing 28 Cover plate portion 32 Flange portion 33 Gap 34 Vibration isolating member 37 Vibration isolating member 39 Component 40 Space 41 Partition wall portion

Claims (2)

基礎上に載置されるベースが取付けられた底板部と、前記底板部の周縁部から起立するように一体的に設けられた壁板部とを備え、電気機器のハウジングを前記壁板部の内側に収容すると共に防振部材を介して底板部上に固定し、前記電気機器のハウジングの開口部を、前記電気機器の入出力端子を外部に導出するための碍子が設けられた蓋板部で閉塞すると共に、前記蓋板部を壁板部の開口部に覆い被せ、前記蓋板部は、その周縁部を屈曲させて壁板部の外周面に沿って延在するフランジ部を有し、前記フランジ部の内周面と前記壁板部の外周面との間に隙間を設けると共に、前記壁板部の外周面のフランジ部対向部位に防振部材を配設したことを特徴とする電気機器用防音装置。 A bottom plate portion to which a base placed on a foundation is attached; and a wall plate portion integrally provided so as to stand up from a peripheral portion of the bottom plate portion; A lid plate portion that is accommodated inside and fixed on the bottom plate portion via a vibration isolating member, and an opening of the housing of the electrical device is provided with an insulator for leading an input / output terminal of the electrical device to the outside And the cover plate portion is covered with the opening portion of the wall plate portion, and the cover plate portion has a flange portion that bends its peripheral portion and extends along the outer peripheral surface of the wall plate portion. In addition, a gap is provided between the inner peripheral surface of the flange portion and the outer peripheral surface of the wall plate portion, and a vibration isolating member is disposed on the flange portion facing portion of the outer peripheral surface of the wall plate portion. Soundproofing device for electrical equipment. 前記電気機器は、ハウジングの内周に空間を介して区画壁部を備え、前記区画壁部の内部に、前記電気機器を構成する要素を収容した請求項1に記載の電気機器用防音装置。   The soundproof device for an electric device according to claim 1, wherein the electric device includes a partition wall portion through a space on an inner periphery of the housing, and an element constituting the electric device is accommodated in the partition wall portion.
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