61 |
Low voltage vacuum circuit interrupter |
US21365 |
1987-03-02 |
US4705923A |
1987-11-10 |
Edward K. Howell |
A solid state switch connected across a pair of separable contacts for eliminating arcing across the contacts allows the contacts and the contact driver to be enclosed within an evacuated envelope. The vacuum environment allows the use of an inexpensive, highly conductive contact material, such as copper, without fear of chemical reaction. |
62 |
High speed magnetic contact driver |
US839671 |
1986-03-14 |
US4658227A |
1987-04-14 |
Edward K. Howell; Henry G. Willard |
A magnetic contact driver is arranged to drive a bridging contact out of electrical connection with a pair of fixed contacts to interrupt the current therethrough. The magnetic driver comprises a conductor winding embedded within notches in a plurality of metal laminations and an armature arranged transverse to the metal laminations. An auxiliary contact driver arrangement consisting of a pair of spaced electrical conductors arranged on the opposite side of the bridging contact is simultaneously energized for electrodynamic repulsion at the instant the magnetic driver winding becomes energized. |
63 |
High speed contact driver for circuit interruption device |
US814865 |
1985-12-30 |
US4646041A |
1987-02-24 |
Edward K. Howell |
A bridging contact is arranged across two fixed contacts with a pair of parallel, closely spaced conductors serving as the bridging contact carrier. A high current pulse in opposite direction within the parallel conductors generates electrodynamic forces rapidly propelling the conductors further apart. The bridging contact carried by the parallel conductors is rapidly driven out of contact relation with the fixed contacts to interrupt the circuit. |
64 |
Electro-mechanical devices incorporating fuse cartridges |
US778470 |
1985-09-20 |
US4631508A |
1986-12-23 |
Jean P. Cinquin; Christian Gazzolo; Michel Pisciotta |
An electro-mechanical circuit breaker device incorporating a fuse cartridge, wherein two contact bars are normally connected by a series of mobile contacts held against their lower edge by springs, two in number for each. An insulating plate, suitably guided at its edges in the insulating envelope of the apparatus, receives the downward displacement that a coil applies by the Thomson effect to an aluminum disc, and it lowers the contacts against spring and latches them in open position by engagement of a bolt in a notch. The lower edge of the plate is provided with teeth to receive the successive contacts and retain them transversely, while each of the mobile contacts is notched to ensure lengthwise retention. |
65 |
Electric circuit breakers |
US3546641D |
1968-02-23 |
US3546641A |
1970-12-08 |
FREEMAN ALAN TWEMLOW |
|
66 |
Electrical device employing stressed column |
US79977659 |
1959-03-16 |
US3002065A |
1961-09-26 |
TOUR JR JOHN LA |
|
67 |
Electrodynamic circuit breaker |
US55852256 |
1956-01-11 |
US2916579A |
1959-12-08 |
FRITZ KESSELRING; ZOLLIKON ZURICH; JOHN DIEBOLD EDWARD |
|
68 |
永久磁石を有する電磁アクチュエータおよびこのアクチュエータによって作動する機械的負荷遮断器 |
JP2014548020 |
2012-12-20 |
JP6199887B2 |
2017-09-20 |
デュプラ,ジャン−ピエール; グリーシャベール,ヴォルフガング; コレット,ミシェル |
|
69 |
Contact mechanism and electromagnetic contactor using the same |
JP2011112910 |
2011-05-19 |
JP2012243587A |
2012-12-10 |
TACHIKAWA HIROYUKI; ISOZAKI MASARU; KASHIMURA OSAMU; TAKATANI YUKINOBU; NAKA YASUHIRO; SHIBA YUJI |
PROBLEM TO BE SOLVED: To provide a contact mechanism and an electromagnetic contactor using the same which can suppress electromagnetic repulsion that breaks the contact of a movable contactor at the time of energization without upsizing the whole structure, and which allow the improvement of arc-extinguishing performance.SOLUTION: At least one of a stationary contactor 2 having a pair of stationary contact parts 2a and 2b inserted in a current path, and a movable contactor 3 having a pair of movable contact parts 3b and 3c which can make and break contact with the pair of stationary contact parts 2a and 2b has a shape which enables the generation of Lorentz force to resist electromagnetic repulsion developed between the stationary contact parts and the movable contact parts in a contact-breaking direction at the time of energization, and at least one of the stationary contactor and the movable contactor has magnetic bodies 14a and 14b disposed thereon for suppressing forces which drives arcs generated between the pair of stationary contact parts and the pair of movable contact parts towards the respective sides of opposite stationary contact parts. |
70 |
Overcurrent switching device |
JP2008555603 |
2006-02-23 |
JP2009527878A |
2009-07-30 |
ドルン、イェルク |
閾値電流を上回ると付属する接点システムを第1状態から第2状態へと移行させるための電流検出手段を有し、その開閉特性が正確である中圧又は高圧応用用過電流開閉装置を形成するために、第1分岐回路中にある電流検出手段の下流側に連結手段を介して操作手段が設けられており、この操作手段が、第2分岐回路中にある接点システムを第1状態から第2状態へと移行させるよう形成されている。 |
71 |
Rapid current-limiting switch |
JP2000336051 |
2000-11-02 |
JP2001185007A |
2001-07-06 |
FROEHLICH KLAUS; HOLAUS WALTER; KALTENEGGER KURT; STEURER MICHAEL |
PROBLEM TO BE SOLVED: To provide a rapid current-limiting switch can be switched rapidly, as coaxial shapes of contact arrangements are arranged very compactly to avoid undesirable leakage inductance.
SOLUTION: A rapid current-limiting switch (S) has an arc discharge contact arrangement (K1) of a first switching point (S1) in which a rated current flows (IN) and two current flow direction switching paths (P1, P2) connected to the first switching point (S1) in parallel. The first current flow direction switching paths (P1) has a contact arrangement (KT) of a second point (ST) in series state and a power switch (T). The second switch flow direction switching paths (P2) has a switch (SA) and a current limiting element (RB) in series. These contact arrangement portions (K1, KT) are symmetrically disposed within a hermetic housing (G). Both switching points have an electro-dynamic driving part that is switched very rapidly.
COPYRIGHT: (C)2001,JPO |
72 |
Contact array for current limiting switch |
JP35943299 |
1999-12-17 |
JP2000188042A |
2000-07-04 |
FROEHLICH KLAUS; HOLAUS WALTER; STEULER MICHAEL; JOERG PETER; KALTENEGGER KURT DR |
PROBLEM TO BE SOLVED: To provide a contact array capable of surely operating a current limiting switch specifically.
SOLUTION: This contactor array has a movable bridge switching member 4, two fixed switching members 1, 2 short-circuited by the bridge switching member 4 with a contactor array in continuity status, and a coil 5, and a driving member which applies electrodynamic force to the movable bridge switching member 4. The contact array corresponds to the switching part S1 which carries the rated current of a switch S of high or low voltage which limits the current and is connected with a current passage K1 provided with a semiconductor switch T connected in parallel with a switching part S1 carrying the rated current. In this case the contact array is formed axisymmetrically, and has cylinders 1, 2 overlapping coaxially and forming a ring space 3 as a fixed switching member, and a contact ring 4 entering the ring 3 at free ends of the cylinders 1, 2 in continuity status as a bridge switch member.
COPYRIGHT: (C)2000,JPO |
73 |
JPH05504229A - |
JP50363991 |
1991-02-18 |
JPH05504229A |
1993-07-01 |
|
|
74 |
Limit circuit braker |
JP23469688 |
1988-09-19 |
JPH01157015A |
1989-06-20 |
PIEERU BARUNERU; FURANSOWA RANDOUPEERU; JIYANNPIEERU NEBON; FUIRITSUPU PERIE |
PURPOSE: To provide a highly reliable compact circuit breaker by making an actuating disk and an actuating rod movable, and moving an annular piston fixed to the rod to a repulsive opening position together with the disk by current-carrying to an actuating coil.
CONSTITUTION: When an electric current is supplied to an open actuating coil 22 by an open command, an assembly formed of an open actuating disk and a piston 26 rises by resiliency, and an open actuating rod 20 is pulled up. The main contact point bridge 16 is pulled up against a spring 38, and the main circuit is opened, and the electric current is switched to an arc circuit. A series arc is formed in the arc circuit, but it is quickly extinguished and reduced in a breaker chamber 36. The disk 24 returns to a home position, but the piston 26 is raised as it is. When it transfers to closing actuation, an electric current is made to flow into a closing actuating coil 42, and a bar 46 and an actuating rod 48 operate, and a latch ring 28 is released, and the actuating rod 20 or the like returns to the former state.
COPYRIGHT: (C)1989,JPO |
75 |
High speed contact driver for circuit breaker |
JP4540787 |
1987-03-02 |
JPS62234833A |
1987-10-15 |
EDOWAADO KEISU HOOUERU |
|
76 |
High speed magnetic contact driver |
JP4540687 |
1987-03-02 |
JPS62234832A |
1987-10-15 |
EDOWAADO KEISU HOOUERU; HENRII GURISUUORUDO UIRAADO |
|
77 |
Quick opening type electromagnetic switch |
JP4553480 |
1980-04-07 |
JPS55157838A |
1980-12-08 |
REMON BURUTSUSON; ANDORE DEYUKURUZOO |
|
78 |
WELD RESISTANT CONTACTOR |
US15279629 |
2016-09-29 |
US20180090291A1 |
2018-03-29 |
Kevin M. Jefferies; Benjamin W. Edwards; Matthew L. White; Alan E. Freeman; Richard Karl Weiler |
In an electromagnetically controlled actuator of an electrical contactor, switching is done by the actuator with a set of fixed contacts and a set of movable contacts. The movable contacts are carried on a movable contact carrier. The movable contact carrier is coupled to and driven by an armature surrounded by a coil. The armature carries a coupling shaft, and the coupling shaft carries at least part of a bistable coupling mechanism which joins the armature to the movable contact carrier and allows the movable contact carrier and armature to keep the fixed and movable contacts separated when a short circuit current creates a contact welding situation. |
79 |
Switch assembly |
US14758476 |
2012-12-28 |
US09679727B2 |
2017-06-13 |
Marko Takala; Jari Elomaa; Matti Kähkipuro; Veikko Puumala; Lauri Kettunen; Tommi Forsberg; Pertti Arjanne; Mikko Helminen; Mikko Vehkaperä |
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a). |
80 |
Device for rapid short-circuiting and earthing of the phases in a power network |
US14435304 |
2013-10-04 |
US09318294B2 |
2016-04-19 |
Jan Karlsson; Samuel Dahl |
The invention relates to a switching device for short-circuiting and earthing at least two phases in an electric power network. The device comprises a first phase contact, a second phase contact, and an earthed, movable contact, which can, on the one hand, assume a first position, where the contact is insulated from the phases, and, on the other hand, a second position, where the contact is connected to the phase contacts and thereby earths and short-circuits the phases. The device is characterized in that the first phase contact and the second phase contact are axially displaced from each other and that they are disposed around the movable contact, and that the contact is cylinder-shaped and comprises two circumferentially disposed contact areas, which are axially displaced from each other and intended to connect to the phase contacts in the second position, so that the phases are short-circuited and earthed via the contact, and that the device comprises electrically insulating areas, which are adapted to abut against the phase contacts in the first position. |