GB758782A - Improvements in electromagnetic relays - Google Patents
Improvements in electromagnetic relaysInfo
- Publication number
- GB758782A GB758782A GB2108654A GB2108654A GB758782A GB 758782 A GB758782 A GB 758782A GB 2108654 A GB2108654 A GB 2108654A GB 2108654 A GB2108654 A GB 2108654A GB 758782 A GB758782 A GB 758782A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- armature
- fingers
- spider
- notches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/30—Means for transmitting pressure to pressure-responsive operating part, e.g. by capsule and capillary tube
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
- H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Abstract
758,782. Electromagnetic relays. WESTINGHOUSE AIR BRAKE CO. July 20,1954 [July 24, 1953], No. 21086/54. Class 38(5) A relay similar in many respects to that disclosed in Specification 708,985 comprises a magnetic shell 2 surrounding a core 7 and winding 8, a four-armed armature 16 having a spindle 18 being pivoted on the core, the armature arms 22 co-operating with pole pieces 13 carried by a non-magnetic plate 10. The shell 2 together with a disc 3 welded thereto forms a sealed enclosure, contactcarrying posts 5 being mounted in glass beads 4 in the disc. An insulating contactactuating spider 17 secured to the armature hub 21 has six notches 28 formed in its upstanding peripheral wall 25 which engage the extremities of respective spring contact fingers 33 having contacts 37, 38. When the coil 8 is not energized the bias in the fingers 33 holds the contacts 37 against back contacts 31, energization of the coil causing the ends of the notches 28 to flex the fingers so that contacts 38 engage front contacts 32, this engagement taking place before the arms 22 engage the pole pieces 13. To prevent rebound of the armature on back stops 12 when the coil is de-energized the spider 17 has a peripheral groove 29 frictionally engaged by a resilient inertia ring 30 whereby when the armature is arrested by the stops 12, the ring 30 continues to rotate and exerts a force on the spider to hold the armature against the stops. The ends of the fingers 33 are bifurcated and of unequal length, the longer upper tips 35 co-operating with the notches 28. To allow for contact misalignment the surfaces of the contacts 31, 32 are arcuate about an axis at right angles to that about which the surfaces of contacts 37, 38 are arcuate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US370096A US2805301A (en) | 1951-04-19 | 1953-07-24 | Electrical relays |
Publications (1)
Publication Number | Publication Date |
---|---|
GB758782A true GB758782A (en) | 1956-10-10 |
Family
ID=31946666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2108654A Expired GB758782A (en) | 1953-07-24 | 1954-07-20 | Improvements in electromagnetic relays |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB758782A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1213472B (en) * | 1959-04-22 | 1966-03-31 | Werk Signal Sicherungstech Veb | Device for safe contacting of motor relays |
DE4122704A1 (en) * | 1991-07-09 | 1993-01-21 | Siemens Ag | ELECTROMAGNETIC RELAY |
WO2014005611A1 (en) * | 2012-07-02 | 2014-01-09 | Schaltbau Gmbh | Electrical contactor with flywheel drive and method for switching an electrical contactor on and off |
-
1954
- 1954-07-20 GB GB2108654A patent/GB758782A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1213472B (en) * | 1959-04-22 | 1966-03-31 | Werk Signal Sicherungstech Veb | Device for safe contacting of motor relays |
DE4122704A1 (en) * | 1991-07-09 | 1993-01-21 | Siemens Ag | ELECTROMAGNETIC RELAY |
US5394127A (en) * | 1991-07-09 | 1995-02-28 | Siemens Aktiengesellschaft | Electromagnetic relay |
WO2014005611A1 (en) * | 2012-07-02 | 2014-01-09 | Schaltbau Gmbh | Electrical contactor with flywheel drive and method for switching an electrical contactor on and off |
CN103890889A (en) * | 2012-07-02 | 2014-06-25 | 沙尔特宝有限公司 | Electrical contactor with flywheel drive and method for switching an electrical contactor on and off |
US9224545B2 (en) | 2012-07-02 | 2015-12-29 | Schaltbau Gmbh | Electric contactor with flywheel drive and method of switching an electric contactor on and/or off |
RU2578208C2 (en) * | 2012-07-02 | 2016-03-27 | Шальтбау ГмбХ | Electric contactor with flywheel drive and method of electric contactor switching on/off |
CN103890889B (en) * | 2012-07-02 | 2016-04-27 | 沙尔特宝有限公司 | The electrical contact driven with flywheel and the method for connecting and/or disconnect electrical contact |
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