专利名称：PENETRATION
发明人：KASAI SHOZO,IWASAKI TOSHIO 申请号：JP30052788
申请日：19881130
公开号：JPH02147988A
公开日：
19900606
专利内容由知识产权出版社提供
摘要：PURPOSE:To enable the attenuation of a pul-like noi including a high-frequency component easy to invade by an interference by providing magnetic rings on both ends of a conductor of penetration which penetrates a vesl. CONSTITUTION:Magnetic rings 14 of high permeability is put in the portions of the inlet and outlet of MI cables 12 of penetration 7. The MI cables 12 are insulated by the powder of magnesia oxide 16 around core wires 15 who housing is protected by a sheath 17 such as stainless steel and copper. The terminal portion of the MI cables 12 is protected by a ceramic terminal 18 at the end portion of the MI cables 12 to draw out the core wires 15 alone so as to connect to outside wiring cables 20 by crimp-type metal fittings 19. The magnetic rings 14 are inrted in the MI cable core wires 15 between the ceramic terminal 18 and the crimp-type metal fitting. Thereby, high-frequency nois can be attenuated in the penetration portions 7.
申请人：HITACHI LTD
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