CONDUCTION INTERRUPTION DEVICE

• Main Authors: FUKUYAMA TAKEKI, NAKAMURA YOSHINOBU, HORI KEISUKE
• Format: Patent
• Language: English; Japanese
• Published: 04.11.2016
• Subjects: AMMUNITION; BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION; HEATING; LIGHTING; MECHANICAL ENGINEERING; RELAYS; SELECTORS; WEAPONS

PROBLEM TO BE SOLVED: To attenuate an arc generated between adjoining cut sections, while down-sizing.SOLUTION: A conduction interruption device includes a pair of conductors 20 each having a long tabular cut section 22, and disposed so that the cut sections 22 are arranged side-by-side in the width direction, an arc-extinguishing chamber for each cut section 22, a gas generator, and a single cutting member 50 having blades 52 of the same number as that of the cut sections 22. The cutting member 50 is moved to the arc-extinguishing chamber side by gas generated from the gas generator, and cuts a corresponding cut section 22 in the arc-extinguishing chamber by means of each blade 52. A pair of cut ends 23, 24 are produced while spaced apart from each other for each cut section 22 by this cutting, thus interrupting conduction between apparatuses. Between the adjoining cut sections 22, an arc attenuation part 60 formed of an electrically insulating material, and attenuating an arc generated between the cut ends 23, 24 of one cut section 22 and the cut ends 23, 24 of the other cut section 22, is disposed.SELECTED DRAWING: Figure 7 【課題】小型化を図りつつ、隣り合う被切断部間で発生したアークを減衰させる。【解決手段】導通遮断装置は、それぞれ長尺板状の被切断部２２を有するとともに、同被切断部２２が幅方向に並べられた状態となるように配置された一対の導電体２０と、被切断部２２毎の消弧室と、ガス発生器と、被切断部２２と同数の刃部５２を有する単一の切断部材５０とを備える。切断部材５０は、ガス発生器からのガスにより消弧室側へ移動させられることで、各刃部５２により、対応する被切断部２２を消弧室で切断する。この切断により被切断部２２毎に、互いに離間した状態の一対の切断端２３，２４を生じさせ、機器間の導通を遮断する。隣り合う被切断部２２間には、電気絶縁性を有する材料により形成され、かつ一方の被切断部２２の切断端２３，２４と、他方の被切断部２２の切断端２３，２４との間で発生するアークを減衰させるアーク減衰部６０を配設する。【選択図】図７