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71. 发明专利

JPH06139890A STOPPER STRUCTURE FOR FIXED SIDE CONTACT SPRING IN ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPH06139890A
公开(公告)日：1994-05-20
申请号：JP28829892
申请日：1992-10-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NOMURA YASUSHI , NAGAMOTO MITSUKI , YOKOTA SHIGERU
IPC分类号： H01H50/02 , H01H50/14
摘要： PURPOSE:To prevent the occurrence of insulation deterioration and cope with opening or closing of a high-capacity current by partially bringing fixed side contact springs connected to a fixed contact terminal at one end into elastic contact with a stopper formed on the fixed contact terminal. CONSTITUTION:A fixed contact terminal 2 and a moving contact terminal 5 are fixed to a body 1, contact springs 3, 16 are connected to it at one end, and contacts 18, 17 are provided at the other end. The moving side contact spring 16 is depressed by the projection 15 of a card 14 operated via a coil (circuit) at the time of excitation, and both contacts 17, 18 are pressed against the force of the fixed side contact spring 3. A stopper made of metal is formed on the fixed contact terminal 2 in this electromagnetic relay, and the fixed side contact spring 3 is brought into elastic contact with the stopper 4 at its contact section 19 when the current is cut off. No insulation deterioration occurs when the fixed side contact spring 3 is heated, the stopper 4 is bent to adjust the elastic contact position, and the wiping quantity can be adjusted.

72. 发明专利

JPH0676718A ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPH0676718A
公开(公告)日：1994-03-18
申请号：JP23115392
申请日：1992-08-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： TOKUMITSU SHINICHI , NAGAMOTO MITSUKI
IPC分类号： H01H51/06
摘要： PURPOSE:To prevent an armature from falling off. CONSTITUTION:In an electromagnetic relay comprising an iron core 1, a coil 2 wound on the iron core 1, a yoke 3 fastened to the iron core 1, an armature 5 to be attracted to and released from the iron core 1, a card 6 to be driven by the armature 5, a contact part 7 which is opened and closed with the card 6 going against a spring force to press a contact spring 7a and a base 4 for mounting these members, a locking part 6e energized by the contact spring 7a to lock the armature 5 is provided in the card 6.

73. 发明专利

JPH0676714A ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPH0676714A
公开(公告)日：1994-03-18
申请号：JP23115192
申请日：1992-08-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI
IPC分类号： H01H50/56 , H01H50/24 , H01H50/44 , H01H50/54
摘要： PURPOSE:To double the number of output pulse against the number of input pulses. CONSTITUTION:An electromagnetic relay is provided with a core 1, a coil 2 wound on the core 1, an armature 3 attracted to and released from the core 1, a moving contact spring 4, whose base end portion 4b is fixed to the armature 3 and a moving contact 4a, set on the tip portion 4 thereof, is touched/parted to/from a fixed contact 4f. A movement reversal member 21e, which touches the intermediate portion 4d of the moving contact spring 4 and reverses the movement direction of the moving contact 4a against the fixed contact 4f, is provided on a coil frame 21a so that the moving contact 4a is once parted from the fixed contact 4f and later is touched thereto again on the way of the respective attraction and release movements of the armature 3. Accordingly, when one time input pulse for ON-OFF is applied to the coil 2, one time whole movement, that the armature 3 is attracted and released against the core 1, is performed, and the reversal movement is also performed so that two times output pulses are generated in one time whole movement process after all.

74. 发明专利

JPH05242753A 失效
公开(公告)号：JPH05242753A
公开(公告)日：1993-09-21
申请号：JP4350092
申请日：1992-02-28
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI
IPC分类号： H01H1/06 , H01H1/26 , H01H50/38 , H01H50/54 , H01H50/56
摘要： PURPOSE:To make it possible to control the load from a minute capacity to a high capacity. CONSTITUTION:The contact switching device is composed of a contact spring 1 which consists of a twin piece 11 having twin contacts 11a and 11a on the pieces divided into two from the front end to an intermediate part toward the basic end side in the longitudinal direction respectively, and a single piece 12 connecting from the twin piece 11 to the basic end side having a single contact 12a; a fixed contact plate 2 on which fixed contacts 2a and 2b to contact to and separate from the twin contacts 11a and 11a, an the single contact 12a are provided respectively; and a driver 3a to drive the position of the front end side of the contact spring 1 upper than the twin contacts 11a and 11a, in the direction to contact and separate to the contacts. As a result, the switching of contacts when a deposition is liable to generate by generating an arc by turning on and off the current directly is carried out with the single contact 12a which has an excellent anti-deposition property, and the twin contacts 11a and 11a are used only for feeding the current by contacting.

75. 发明专利

JPH05234484A 失效
公开(公告)号：JPH05234484A
公开(公告)日：1993-09-10
申请号：JP3777092
申请日：1992-02-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI
IPC分类号： H01H50/26 , H01H50/54 , H01H50/64
摘要： PURPOSE:To operate a contactor stably even if the number of operations increases. CONSTITUTION:Regarding a movable contact spring 4, an extended part 4a which pushes about the center part 3a of a contactor 3 and supports a hinge is extended out of a tip part 4b. Consequently, the more the contactor 3 drives the movable contact spring 4 following the attraction action toward an iron core 1 and at the same time drives the extended part 4c as well, the weaker becomes the pushing force of the extended part 4c to the contactor 3. Meanwhile, in the attraction action process of the contactor 3, since magnetic fluxes flow at the part of the contactor 3 supported by a hinge, the contactor 3 is stably supported by the hinge by the magnetic fluxes even if, as mentioned above, the pushing force to the contactor 3 by the extended part 4c is weakened. As a result, even if the number of the operation increases, wear and the increase of friction force at the part supported by the hinge are suppressed in a degree corresponding to the weakened pushing force to the contactor 3 by the extended part 4c, so that the contactor 3 is driven stably.

76. 发明专利

JPH0418683B2 失效
公开(公告)号：JPH0418683B2
公开(公告)日：1992-03-27
申请号：JP24953483
申请日：1983-12-23
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI
IPC分类号： H01F7/08 , H01F7/14 , H01H51/24

77. 发明专利

JPH0343764B2 失效
公开(公告)号：JPH0343764B2
公开(公告)日：1991-07-03
申请号：JP7363982
申请日：1982-04-30
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI , KOBAYASHI NOBUO
IPC分类号： H01F7/14 , H01F7/04 , H01F7/08

78. 发明专利

JPH0237641A RELAY 失效
公开(公告)号：JPH0237641A
公开(公告)日：1990-02-07
申请号：JP11018389
申请日：1989-04-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NISHIKAWA TOKIMITSU , NODA YASUTAKA , NAGAMOTO MITSUKI
IPC分类号： H01H50/26 , H01H50/34
摘要： PURPOSE:To reduce the dispersion of the operation characteristic by forming the middle section of one end of an armature driving a contact section as small as possible, elastically coupling a pressing spring with a recessed groove provided on the outer face of an intermediate folded section, and swayably supporting the armature on a yoke. CONSTITUTION:An armature 2 made of a nearly L-shaped magnetic material has one piece 2a facing the magnetic pole face of an iron core 3 and the other piece 2b driving a contact spring 6, a recessed groove 11 is formed on the outer face of the folded section of the armature 2, a recess 10 is formed at the portion nearer to one piece 2a on the inner face of the folded section. The middle section of the other piece 2b of the armature 2 is notched, its width size is made smaller than that of one piece 2a, the tare weight of the armature 2 is suppressed small. A pressing spring 7 is elastically coupled with the recessed groove 11, thus the inner face of the folded section of the armature 2 is excited to the end edge of a yoke 1, the armature 2 is swayably supported on the yoke 1. The tare weight of the armature is small, thereby the armature can be swayably supported stably, the operation characteristic is not dispersed.

79. 发明专利

JPH01140529A HINGE-TYPE RELAY 失效
公开(公告)号：JPH01140529A
公开(公告)日：1989-06-01
申请号：JP29872887
申请日：1987-11-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAMOTO MITSUKI
IPC分类号： H01H51/06
摘要： PURPOSE:To regulate the spring load property easily by providing a regulation screw to vary the pressing position of a movable contact spring with an armature by moving an electromagnet block, and a regulation screw to press a fixed contact spring to the movable contact side. CONSTITUTION:A regulation screw 14 to which a washer 15 is geared from the upper side is screwed to a horizontal piece 4a of a yoke 4. By moving an electromagnet block A to convert the pressing position of a movable contact spring 9 by an armature 5, depending on the screwing condition of the regulation screw 14, the spring load property is converted. Furthermore, a regulation screw 18 is screwed from the side of a cover 12, while a projection 17 to regulate the movement of the free end of the fixed contact spring 9 to the movable contact spring 7 side is furnished at the inner surface of the cover 12. By the tip of the regulation screw 18, a fixed contact spring 8 is pressed to the movable contact spring 7 side, the initial load when the movable contact 9 and a fixed contact spring 10 are contacted is converted, and the spring load is converted. In such a way, the spring load property can be regulated by only converting the screwing condition of the regulation screw.

80. 发明专利

JPS645479B2 失效
公开(公告)号：JPS645479B2
公开(公告)日：1989-01-30
申请号：JP11637079
申请日：1979-09-10
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NISHIKAWA TOKIMITSU , NAGAMOTO MITSUKI
IPC分类号： H05K5/06

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