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71. 发明专利

JPH0155740B2 失效
公开(公告)号：JPH0155740B2
公开(公告)日：1989-11-27
申请号：JP20663883
申请日：1983-10-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： ICHIMURA YASUO , HIRAO AKIHIKO
IPC分类号： H01H73/18 , H01H71/38

72. 发明专利

JPH01157013A ARC EXTINGUISHING DEVICE 失效
公开(公告)号：JPH01157013A
公开(公告)日：1989-06-20
申请号：JP31494787
申请日：1987-12-11
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRAO AKIHIKO , AOYAMA YOICHI , MATSUDA JUNICHI , SAWADA TOMOYUKI
IPC分类号： H01H9/44 , H01H9/30 , H01H73/18
摘要： PURPOSE:To obtain an arc extinguishing device capable of reducing a pressure in an arc extinguishing chamber by providing plural fins on an exhaust opening part of a magnetic body which is formed into U-shape with a back plate and a pair of side plates and provided with an insulator fitted inside thereof. CONSTITUTION:There is provided a magnetic body 13 formed into U-shape with a back parts 12 and a pair of side plates 11, one of openings being served as an arc advance opening part 13a and the other as an exhaust opening part 13b. Inside the magnetic body 13, an insulator 14 is fitted. The insulator 14 is made of high-molecular material having a tendency to generate heat- decomposition. As an arc 9 is forcedly touched to the insulator 14 on the front surface of the back plate 12 due to Lorentz force, heat of the arc is transmitted to the insulator so as to be cooled. The heat of the arc also decomposes the insulator resulting in a generated hydrogen gas, thereby rapidly being cooled. The section of the arc 9 is reduced for enhancing current density and arc voltage. Then, the arc 9 is touched to the fins 19 on the exhaust opening part 13b so as to be cooled, thereby it is possible to enhance the arc voltage furthermore and restrict pressure in the arc extinguishing chamber 3.

73. 发明专利

JPS63102136A CONTACTOR 失效
公开(公告)号：JPS63102136A
公开(公告)日：1988-05-07
申请号：JP22693286
申请日：1986-09-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： TAKEUCHI AKIRA , HISAMOTO HIDEO , TANAKA TAKANOBU , HIRAO AKIHIKO , AOYAMA YOICHI , MATSUDA JUNICHI , OKADA TAKEHIKO
IPC分类号： H01H9/44 , H01H73/02 , H01H73/18

74. 发明专利

JPS62100912A CONTACT SWITCH 失效
公开(公告)号：JPS62100912A
公开(公告)日：1987-05-11
申请号：JP24001185
申请日：1985-10-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HORIUCHI KENICHIRO , HIRAO AKIHIKO , AOYAMA YOICHI
IPC分类号： H01H3/38 , H01H1/18 , H01H1/24 , H01H3/32

75. 发明专利

JPS6298509A CONTACT SWITCH 失效
公开(公告)号：JPS6298509A
公开(公告)日：1987-05-08
申请号：JP24001085
申请日：1985-10-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： SHIROKURA KAORU , HIRAO AKIHIKO
IPC分类号： H01H1/18 , H01H1/52 , H01H1/54

76. 发明专利

JPS61233919A CONTACT SWITCHGEAR 失效
公开(公告)号：JPS61233919A
公开(公告)日：1986-10-18
申请号：JP7589885
申请日：1985-04-10
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HORIUCHI KENICHIRO , HIRAO AKIHIKO , AOYAMA YOICHI
IPC分类号： H01H50/56 , H01H1/60 , H01H9/30 , H01H9/38 , H01H50/54

77. 发明专利

JPS61214313A CONTACT SWITCHGEAR 失效
公开(公告)号：JPS61214313A
公开(公告)日：1986-09-24
申请号：JP5485785
申请日：1985-03-18
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRAO AKIHIKO
IPC分类号： H01H1/22

78. 发明专利

JPS61173417A CONTACT SWITCHGEAR 失效
公开(公告)号：JPS61173417A
公开(公告)日：1986-08-05
申请号：JP1283285
申请日：1985-01-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HORIUCHI KENICHIRO , HIRAO AKIHIKO , SHIROKURA KAORU , AOYAMA YOICHI
IPC分类号： H01H1/14

79. 发明专利

JPS6122528A Electric contact device 失效
标题翻译：电接点设备
公开(公告)号：JPS6122528A
公开(公告)日：1986-01-31
申请号：JP14262984
申请日：1984-07-10
申请人： Matsushita Electric Works Ltd
发明人： HIRAO AKIHIKO
IPC分类号： H01H50/56 , H01H50/54

80. 发明专利

JPS6122527A Electromagnetic relay 失效
公开(公告)号：JPS6122527A
公开(公告)日：1986-01-31
申请号：JP14262884
申请日：1984-07-10
申请人： Matsushita Electric Works Ltd
发明人： HIRAO AKIHIKO
IPC分类号： H01H50/54 , H01H50/34 , H01H50/56

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