To provide a magnetic field shield structure capable of reducing, to a value equal to 1 mT or less, strength of a floor surface leakage magnetic field leaking from a power line which is disposed under the floor surface of a railway vehicle and through which a heavy-current flows, and capable of lightening the whole weight.SOLUTION: A magnetic field shield structure shields a magnetic field leaking from a power line arranged under a railroad vehicle floor, and comprises: a power line duct covering the power line; and a magnetic field shield plate which contacts with the power line duct and is arranged between the floor and the power line. The magnetic field shield structure is characterized in that both end parts of the magnetic shield plate incline in an opposite direction to the floor and both tips of the end parts diverge into a plurality of portions when a section of the magnetic field shield plate is seen in a direction perpendicular to a longitudinal direction of the power line.SELECTED DRAWING: Figure 1
【課題】鉄道車両の床面下には、大電流が流れる電力線が配置されている。この電力線からの漏れ磁界を床面において、1mT以下にし、全体の重量を軽くするような磁界遮蔽構造を提供する。【解決手段】鉄道車両の床下に配置される電力線からの磁界を遮蔽する磁界遮蔽構造であって、前記電力線を覆う電力線ダクトと、前記電力線ダクトに接し、前記床と前記電力線の間に配置される磁界遮蔽板を有し、前記磁界遮蔽板は前記電力線の長手方向に直角方向で断面視した時、両端が前記床と反対方向に傾斜し、前記両端の先端が複数に分岐していることを特徴とする磁界遮蔽構造。【選択図】図1
MAGNETIC FIELD SHIELD STRUCTURE FOR RAILWAY VEHICLE
鉄道車両の磁界遮蔽構造
2021-08-10
Patent
Electronic Resource
Japanese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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