Relay with reed contacts |
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| 申请号 | US39392364 | 申请日 | 1964-09-02 | 公开(公告)号 | US3270302A | 公开(公告)日 | 1966-08-30 |
| 申请人 | INT STANDARD ELECTRIC CORP; | 发明人 | GERHARD WESSEL; | ||||
| 摘要 | 1,045,441. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. Sept. 14, 1964 [Sept. 14, 1963], No. 37423/64. Heading H2B. A polarized electromagnetic relay in which the armature or armatures may be stable in one or both of its end of travel positions has one or more sealed magnetic contact devices with a ball-shaped contact armature which bridges fixed pairs of contact rods in one or both of said positions. In Fig. la the permanent magnet 7 is mounted between two contact devices 1 surrounded by a coil 8 and biases the armature contacts 6 to bridge an upper contact pair 2, 3. A second magnet may be mounted below the first (Fig. 2a, not shown) so that the armatures are bi-stable, as in Fig. 4 in which annular permanent magnets 10, 11 are mounted outside the coil 8 1 . Rod-shaped permanent magnets may lie alongside the coil (Figs. 5a and 6a, not shown) or annular magnets 14, 15 (Fig. 8b) may surround a number of contact devices 1 around an operating coil. | ||||||
| 权利要求 | 1. A RELAY COMPRISING: A CONTAINER HAVING A SUBSTANTIALLY CYLINDRICAL WALL CLOSED AT BOTH ENDS, REEDS ALIGNED ALONG THE CENTRAL AXIS OF THE CYLINDRICAL WALL FOR CONDUCTING ELECTRICAL CURRENT, SAID REEDS BEING POSITIONED WITH RESPECT TO SAID CONTAINER TO EXTEND THROUGH THE ENDS OF THE CONTAINER AND TO EACH HAVE A TERMINAL OUTSIDE ONE END OF THE CONTAINER AND A SEPARATE TERMINAL CONTACT WITHIN THE CONTAINER, A BALL SHAPED MOVABLE ARMATURE WITHIN SAID CONTAINER PROPORTIONED TO BE MOVABLE ALONG SAID CENTRAL AXIS WITHIN THE CYLINDRICAL WALL, AND TO BRIDGE A GAP ACROSS TWO TERMINAL CONSTACTS ASSOCIATED WITH REEDS EXTENDING THROUGH ONE END OF SAID CONTAINER, SAID BALL SHAPED MOVABLE ARMATURE BEING CAPABLE, BY BRIDGING SAID GAP, OF COMPLETING AN ELECTRICAL CIRCUIT THROUGH SAID CONTACTS, A CYLINDRICAL COIL HAVING A SUBSTANTIALLY CYLINDRICAL OUTER EDGE ALIGNED COAXIALLY TO SAID CENTRAL AXIS FOR GENERATING AN ELECTROMAGNETIC FIELD TO PASS THROUGH SAID ARMATURE AND TO CONTROL THE POSITION OF SAID ARMATURE IN ACCORDANCE WITH THE POLARITY OF SAID FIELD, A PERMANENT MAGNET POSITIONED OUTSIDE THE CYLINDRICAL OUTER EDGE OF SAID CYLINDRICAL COIL AND ORIENTED TO HAVE AN AXIS THROUGH ITS POLES PARALLEL TO SAID CENTRAL AXIS, SAID PERMANENT MAGNET PRODUCING A PERMANENT MAGNETIC FIELD COEXTENSIVE, IN THE VICINITY OF THE ARMATURE, WITH THE ELECTROMAGNETIC FIELD, SAID PERMANENT MAGNETIC FIELD BEING POLED TO AID THE ELECTROMAGNETIC FIELD IN ONE ORIENTATION AND TO OPPOSE IT WHEN THE DIRECTION OF THE ELECTROMAGNETIC FIELD IS REVERSED, SAID PERMANENT MAGNETIC FIELD CAUSING THE ARMATURE TO REMAIN CLOSED ACROSS TWO RECENTLY CLOSED TERMINAL CONTACTS IN THE ABSENCE OF AN ELECTROMAGNETIC FIELD, AND SAID PERMANENT MAGNET PERMITTING SAID ARMATURE TO MOVE ALONG THE CENTRAL AXIS AWAY FROM CONTACT WITH SAID TWO TERMINAL CONTACTS IN THE PRESENCE OF AN ELECTROMAGNETIC FIELD OF A POLARITY OPPOSING THAT OF THE PERMANENT MAGNET. |
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