WO2015182009A1 - 母線構造およびこれを用いた配電盤 - Google Patents
母線構造およびこれを用いた配電盤 Download PDFInfo
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- WO2015182009A1 WO2015182009A1 PCT/JP2014/080063 JP2014080063W WO2015182009A1 WO 2015182009 A1 WO2015182009 A1 WO 2015182009A1 JP 2014080063 W JP2014080063 W JP 2014080063W WO 2015182009 A1 WO2015182009 A1 WO 2015182009A1
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- vertical
- bus
- horizontal
- buses
- switchboard
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/21—Bus-bar arrangements for rack-mounted devices with withdrawable units
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
Definitions
- the present invention relates to a bus structure and a switchboard using the same.
- Conventional switchboards for example, divide the housing into front, middle, and rear parts, and at least one of the horizontal busbars and parts such as switch units, inverters, and power supply units at the front and rear of the divided housings.
- the vertical bus is stored in the middle casing, and the casings are fastened to each other.
- the horizontal bus bar supplies power to the entire load, and the vertical bus bar branches from the horizontal bus bar and supplies power to each unit individually.
- the horizontal bus is arranged in the horizontal direction on the upper side of the housing
- the vertical bus is arranged in the vertical direction integrally from the top to the bottom of the housing, and is connected to the horizontal bus on the upper end side.
- the vertical busbar branched from the horizontal busbar is an integrated vertical busbar from the top to the bottom of the panel.
- the connection point between the horizontal bus and the vertical bus is provided at the top of the vertical bus. Therefore, when a large-capacity load is mounted in the vicinity of the lowermost stage of the panel, it is necessary to flow a large current over the entire length of the vertical bus, so that heat generation from the vertical bus has also increased.
- in order to suppress heat generation from the vertical bus it is necessary to increase the cross-sectional area of the vertical bus or increase the surface area of the vertical bus to cool it. If the size is increased, the board itself becomes larger accordingly, and there is a problem that the installation efficiency of the board is lowered and the economical efficiency is deteriorated.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bus structure that can suppress heat generation due to current flowing in a vertical bus and a switchboard using the bus structure.
- a plurality of sets of horizontal buses supplied with power from the same system power source are distributed and arranged at a plurality of locations in the vertical direction within the housing, and are individually connected to the plurality of sets of horizontal buses.
- a plurality of sets of vertical buses branched in the vertical direction are arranged in the vertical direction in the housing.
- the switchboard according to the present invention uses the above busbar structure.
- a plurality of sets of horizontal buses supplied with power from the same system power source are distributed and arranged at a plurality of locations in the vertical direction in the housing, and each of the plurality of sets of horizontal buses is individually provided. Since multiple sets of vertical buses that are connected and branch in the vertical direction are arranged side by side in the vertical direction in the housing, the current flowing through the vertical buses is dispersed by dividing the vertical buses that lead to the load into multiple parts. The current flowing through each vertical bus can be reduced. Thereby, since heat generation from the vertical bus can be suppressed, the cross-sectional area and surface area of the vertical bus can be reduced. Moreover, according to the switchboard using this bus-bar structure, the installation efficiency and economic efficiency of the switchboard can be improved.
- FIG. 1A and 1B are diagrams showing a switchboard using the busbar structure according to Embodiment 1, wherein FIG. 1A is a front view and FIG. 1B is a side view.
- the switchboard of the present application is intended for low voltage and large current.
- the three-phase horizontal bus is composed of two horizontal buses for each phase, which is further divided into two parts, and the first horizontal bus 2 is arranged on the upper side of the cabinet 1 of the switchboard.
- the second horizontal buses 3 are respectively arranged in the horizontal direction and fixed to the casing 1 of the switchboard via an insulator (not shown).
- Each of the horizontal buses 2 and 3 is made of, for example, a flat copper material having a rectangular cross section.
- the first horizontal bus 2 and the second horizontal bus 3 are supplied with electric power from the same system power source.
- Each horizontal bus is individually connected with a vertical bus extending in the vertical direction. That is, the first vertical bus 4 is connected to the first horizontal bus 2, and the second vertical bus 5 is connected to the second horizontal bus 3, respectively.
- the first vertical bus 4 is connected to the first horizontal bus 2
- the second vertical bus 5 is connected to the second horizontal bus 3, respectively.
- one first vertical bus 4 is connected to two A-phase horizontal buses of the first horizontal bus 2 by connecting conductors 6.
- the B phase and the C phase are similarly connected, and the second horizontal bus 3 and the second vertical bus 5 are similarly connected.
- the present invention connects one set of vertical buses consisting of three three-phases to one set of horizontal buses consisting of six three-phase horizontal buses, and connects them to the upper and lower sides of the casing 1 of the switchboard. Two sets are arranged in the direction.
- Each of the vertical buses 4 and 5 is formed of, for example, a copper plate having an L-shaped cross section, and one surface of the L shape is used as a connection surface with the horizontal bus bar, and the other surface projects to the side opposite to the horizontal bus bar side. I am letting. And it is being fixed to the housing
- the unit device is connected to the vertical bus and can be disconnected by pulling out the contact portion.
- the cross-sectional shape of the vertical bus bar is not limited to the L shape, and may be another shape.
- the horizontal bus is divided into the first horizontal bus 2 and the second horizontal bus 3 and distributed to two locations in the vertical direction in the casing 1 of the switchboard.
- the first vertical bus 4 is What is necessary is just to make it a cross-sectional area corresponding to the load current of the apparatus connected to it, and the 2nd vertical bus
- bath 5 should just be taken as the cross-sectional area corresponding to the load current of the apparatus connected to it.
- the horizontal buses are two buses for each phase.
- the present invention is not limited to this, and one horizontal bus may be used for each phase.
- the horizontal bus has been described as two horizontal buses and two vertical buses connected to the horizontal buses, but the present invention is not limited to two sets. Applies to connected busbar structures.
- a plurality of sets of horizontal buses supplied with power from the same system power source are distributed and arranged at a plurality of locations in the vertical direction in the housing. Since multiple sets of vertical buses that are individually connected to the horizontal buses and branch in the vertical direction are arranged side by side in the vertical direction in the housing, the vertical buses leading to the load are divided into multiple vertical buses. The current flowing through each of the vertical buses can be reduced. Thereby, since heat generation from the vertical bus can be suppressed, the cross-sectional area and surface area of the vertical bus can be reduced.
- FIG. 2A and 2B are diagrams showing a switchboard using a busbar structure according to Embodiment 2, wherein FIG. 2A is a front view and FIG. 2B is a side view. Since it is a part corresponding to FIG. 1 of the first embodiment, the same parts are denoted by the same reference numerals, description thereof will be omitted, and differences will be mainly described.
- the horizontal bus is divided into the first horizontal bus 2 and the second horizontal bus 3 and distributed
- the vertical bus is also divided into the first vertical bus 7 and the second horizontal bus.
- the first vertical bus 7 and the second vertical bus 8 have different cross-sectional areas and surface areas corresponding to the capacity of the connected load.
- FIG. 2 shows a case where the cross-sectional area and surface area of the second vertical bus bar 8 are larger than those of the first vertical bus bar 7.
- a large-capacity load device is mounted on the lower side of the casing 1 of the switchboard, it is necessary to pass a large current through the second vertical bus 8, and therefore the second vertical bus 8 on the lower side.
- the large-capacity load device is not mounted on the upper stage side, it is not necessary to increase the cross-sectional area and surface area of the first vertical bus bar 7 on the upper stage side.
- FIG. 2 assumes such a case.
- the cross-sectional area and surface area of the first vertical bus 7 may be increased.
- each vertical bus 7 and 8 By changing the size (cross-sectional area and surface area) of each vertical bus 7 and 8 according to the load capacity to be mounted, waste of the vertical bus can be eliminated, cost reduction, and downsizing. Is possible.
- each of the plurality of sets of vertical buses is configured to have a different cross-sectional area and surface area corresponding to the capacity of the connected load. Power can be efficiently supplied to the load by optimizing the size of the bus.
- FIG. 3A and 3B are diagrams showing a switchboard using a busbar structure according to Embodiment 3, wherein FIG. 3A is a front view and FIG. 3B is a side view. Since it is a part corresponding to FIG. 1 of the first embodiment, the same parts are denoted by the same reference numerals, description thereof will be omitted, and differences will be mainly described.
- This embodiment also divides the vertical bus into two parts and connects them individually to the horizontal buses as in the first embodiment. However, the difference is that the vertical buses divided in the vertical direction are connected at the center. This is the point.
- each of the vertical buses 4 and 5 has an L-shaped cross section as described in the first embodiment, a plane perpendicular to the connection surface with the horizontal buses 2 and 3 is used.
- the plate-like connecting conductors 9 are assigned from both sides of the surface and connected by bolting.
- the present invention is not limited to this connection structure, and the first vertical bus 4 and the second vertical bus 5 need only be electrically connected.
- the current flowing through the horizontal buses 2 and 3 and the vertical buses 4 and 5 can be balanced.
- a large-capacity load device is mounted near the center portion of the casing 1 of the switchboard, current can be supplied from the vertical buses 4 and 5 on the upper and lower sides.
- the cross-sectional area and the surface area of can be made small. Thereby, cost reduction and size reduction are attained, and the installation efficiency and economical efficiency of the switchboard to accommodate can be improved.
- the first vertical bus 4 and the second vertical bus 5 are described as having the same shape. However, as in the second embodiment, the vertical buses 4 and 5 have different cross-sectional areas and surface areas. It can also be applied to cases.
- a plurality of sets of vertical buses are connected to each other by connecting conductors and are integrally connected, so that the balance between the horizontal bus bars and the vertical buses arranged in a plurality of sets is balanced.
- power can be supplied from each vertical bus, so that the cross-sectional area and surface area of the vertical bus can be reduced.
- the switchboard having the bus structure of any one of the first to third embodiments since the switchboard having the bus structure of any one of the first to third embodiments is used, the switchboard that can suppress the heat generation from the vertical busbar and reduce the cross-sectional area and surface area of the vertical busbar. Can be obtained. For this reason, it is possible to improve the installation efficiency and economical efficiency of the switchboard.
- the embodiments can be freely combined, or the embodiments can be appropriately changed or omitted.
- 1 switchboard housing 2 first horizontal bus, 3 second horizontal bus, 4 first vertical bus, 5 second vertical bus, 6 connecting conductor, 7 First vertical bus, 8 Second vertical bus, 9 Connection conductor.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Installation Of Bus-Bars (AREA)
- Distribution Board (AREA)
Abstract
Description
そして、母線配置としては、水平母線が、筐体の上部側において水平方向に配置され、垂直母線が、筐体の上から下まで一体で垂直方向に配置され、上端側で水平母線と接続されている(例えば、特許文献1参照)。
このような母線構造で、垂直母線からの発熱を抑えるためには、垂直母線の断面積を大きくするか、垂直母線の表面積を大きくして冷却する必要があるが、垂直母線の断面積および表面積を大きくすれば、それにつれて盤自体も大きくなってしまい、盤の設置効率が低下するとともに、経済性も悪化するという問題点があった。
また、この発明に係る配電盤は、上記の母線構造を用いたものである。
これにより、垂直母線からの発熱を抑えることができるため、垂直母線の断面積や表面積を小さくすることが可能となる。
また、この母線構造を用いた配電盤によれば、配電盤の設置効率、および経済性の向上を図ることができる。
図1は、実施の形態1による母線構造を用いた配電盤を示す図であり、(a)は正面図、(b)は側面図である。以下図に基づいて説明する。
本願の配電盤は、低電圧、大電流への対応を想定したものである。図のように、3相の水平母線は、各相につき2本の水平母線で構成し、更にそれを二つに分けて配電盤の筐体1の上部側に第1の水平母線2を、中部に第2の水平母線3をそれぞれ水平方向に向けて配置し、図示しない碍子を介して配電盤の筐体1に固定されている。各水平母線2,3は、例えば、断面が矩形状の平板の銅材からなっている。
この第1の水平母線2と第2の水平母線3は、同一系統の電源から電力の供給を受けるものである。
上述のように、本願発明は、3相6本の水平母線からなる1組の水平母線に対し、3相3本からなる1組の垂直母線を接続し、それを配電盤の筐体1の上下方向に2組配置して構成されている。
また、図示は省略しているが、母線が収容された図1のような配電盤の筐体1の前面側には、例えば、負荷に接続される複数のユニット機器が上下方向に並べて配置される。更に,必要に応じて電源引き込みユニットが収容されて配電盤が構成されている。
その場合、上述のような断面L字状の垂直母線を用いることで、水平母線側とは反対側に突出した辺を利用し、その突出辺にユニット機器の背面側の接触子を挿入することで、ユニット機器が垂直母線に接続され、また、接触子部を引き抜くことで断路できるようになっている。
ただし、垂直母線の断面形状はL字状に限定するものではなく、他の形状であっても良い。
特許文献1のような従来の母線構造では、配電盤の筐体1の上部側に配置した水平母線に、配電盤の筐体1の上部から下部まで1体の垂直母線を接続していたので、例えば、配電盤の筐体1の下部側に大容量の負荷機器を実装した場合には、垂直母線の全長にわたって大電流が流れ、発熱が大きくなっていた。
また、例えば、最下段に大容量の負荷機器を実装した場合には、第2の垂直母線5のみに大電流を流せばよいため、垂直母線からの発熱を抑えることができる。
この結果、各垂直母線4,5の断面積や表面積を小さく構成することが可能となる。
また、水平母線は2組の水平母線と、それに個別に接続された2組の垂直母線として説明したが、2組に限定するものではなく、複数組の水平母線に個別に複数組の垂直母線が接続された母線構造に適用される。
これにより、垂直母線からの発熱を抑えることができるため、垂直母線の断面積や表面積を小さくすることが可能となる。
図2は、実施の形態2による母線構造を用いた配電盤を示す図であり、(a)は正面図、(b)は側面図である。実施の形態1の図1と対応する部分なので、同等部分は同一符号を付して説明は省略し、相違点を中心に説明する。
本実施の形態も、実の形態1と同様に、水平母線を第1の水平母線2と第2の水平母線3に分けて分散配置し、垂直母線も第1の垂直母線7と第2の垂直母線8に分け、それぞれ個別に水平母線2,3に接続している。
相違点は、本実施の形態では、第1の垂直母線7と第2の垂直母線8とで、接続される負荷の容量に対応して断面積および表面積が異なっている点である。
例えば、配電盤の筐体1の下段側に大容量の負荷機器が実装されるような場合は、第2の垂直母線8に大電流を流す必要があるため、下段側の第2の垂直母線8の断面積および表面積を大きくし、上段側に大容量の負荷機器が実装されない場合は、上段側の第1の垂直母線7の断面積および表面積を大きくする必要がない。図2の例は、そのような場合を想定したものである。逆に上段側に大容量の負荷機器を実装する場合は、第1の垂直母線7の断面積および表面積を大きくすれば良い。
図3は、実施の形態3による母線構造を用いた配電盤を示す図であり、(a)は正面図、(b)は側面図である。実施の形態1の図1と対応する部分なので、同等部分は同一符号を付して説明は省略し、相違点を中心に説明する。
本実施の形態も、垂直母線を2分割し、それぞれ個別に水平母線と接続しているのは実施の形態1と同様であるが、相違点は、上下に分けた垂直母線を中央部で接続した点である。
これにより、コスト低減、および小形化が可能となり、収容する配電盤の設置効率および経済性の向上を図ることができる。
なお、図3では、第1の垂直母線4と第2の垂直母線5を同形状のものとして説明したが、実施の形態2のように、両垂直母線4,5で断面積および表面積が異なる場合にも適用できる。
4 第1の垂直母線、5 第2の垂直母線、6 接続導体、
7 第1の垂直母線、8 第2の垂直母線、9 連結導体。
Claims (4)
- 同一系統の電源から電力供給される複数組の水平母線が、筐体内の上下方向の複数箇所に分散して配置され、前記複数組の水平母線のそれぞれに個別に接続されて垂直方向に分岐する複数組の垂直母線が、前記筐体内の上下方向に並べて配置されていることを特徴とする母線構造。
- 請求項1に記載の母線構造において、
前記複数組の垂直母線のそれぞれは、接続される負荷の容量に対応して断面積および表面積が異なるように構成されていることを特徴とする母線構造。 - 請求項1または請求項2に記載の母線構造において、
前記複数組の垂直母線は、互いに連結導体により連結されて一体に繋がっていることを特徴とする母線構造。 - 請求項1から請求項3のいずれか1項に記載の母線構造を備えた配電盤。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2016523098A JP6173579B2 (ja) | 2014-05-29 | 2014-11-13 | 母線構造およびこれを用いた配電盤 |
CN201480079127.5A CN106463921A (zh) | 2014-05-29 | 2014-11-13 | 母线结构以及使用该母线结构的配电盘 |
EP14893571.1A EP3151350A4 (en) | 2014-05-29 | 2014-11-13 | Bus line structure and distribution board using same |
KR1020167032871A KR20160144026A (ko) | 2014-05-29 | 2014-11-13 | 모선 구조 및 이것을 이용한 배전반 |
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JP2014110892 | 2014-05-29 | ||
JP2014-110892 | 2014-05-29 |
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EP (1) | EP3151350A4 (ja) |
JP (1) | JP6173579B2 (ja) |
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Cited By (1)
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JP2020108300A (ja) * | 2018-12-28 | 2020-07-09 | 東芝産業機器システム株式会社 | 母線の配置構造、閉鎖配電盤 |
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SG11201909902PA (en) | 2017-05-08 | 2019-11-28 | Abb Schweiz Ag | Multiple fed busbar system |
CN107086508B (zh) * | 2017-06-21 | 2018-10-30 | 河南森源电气股份有限公司 | 一种电缆固定装置及使用该电缆固定装置的配电柜 |
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JP4726513B2 (ja) * | 2005-02-28 | 2011-07-20 | 三菱電機株式会社 | 配電盤及びその製造方法 |
CN201656311U (zh) * | 2010-04-29 | 2010-11-24 | 北京科力通机电设备技术有限责任公司 | 低压配电柜抽屉柜垂直母线 |
KR101336969B1 (ko) * | 2013-09-04 | 2013-12-04 | 주식회사 엔피산업전기 | 다적재 멀티 모터 컨트롤 센터 |
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2014
- 2014-11-13 WO PCT/JP2014/080063 patent/WO2015182009A1/ja active Application Filing
- 2014-11-13 JP JP2016523098A patent/JP6173579B2/ja active Active
- 2014-11-13 EP EP14893571.1A patent/EP3151350A4/en not_active Withdrawn
- 2014-11-13 KR KR1020167032871A patent/KR20160144026A/ko active Search and Examination
- 2014-11-13 CN CN201480079127.5A patent/CN106463921A/zh active Pending
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JPS54111636U (ja) * | 1978-01-24 | 1979-08-06 | ||
JPS55153214A (en) * | 1979-05-17 | 1980-11-29 | Tokyo Shibaura Electric Co | Bus device |
JPS60261308A (ja) * | 1984-06-06 | 1985-12-24 | 株式会社日立製作所 | 配電盤 |
JP2005073428A (ja) * | 2003-08-26 | 2005-03-17 | Fuji Electric Systems Co Ltd | 集合形配電盤の母線装置 |
JP2010029018A (ja) * | 2008-07-23 | 2010-02-04 | Toshiba Industrial Products Manufacturing Corp | 閉鎖配電盤 |
Non-Patent Citations (1)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020108300A (ja) * | 2018-12-28 | 2020-07-09 | 東芝産業機器システム株式会社 | 母線の配置構造、閉鎖配電盤 |
Also Published As
Publication number | Publication date |
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EP3151350A4 (en) | 2017-12-27 |
KR20160144026A (ko) | 2016-12-15 |
JPWO2015182009A1 (ja) | 2017-04-20 |
JP6173579B2 (ja) | 2017-08-02 |
CN106463921A (zh) | 2017-02-22 |
EP3151350A1 (en) | 2017-04-05 |
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