US4551698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarized electromagnetic relay
Assignee: Siemens AG
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Filing: 1983-12-06
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Granted: 1985-11-05
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Expires: 2003-12-06
Abstract
Abstract A polarized electromagnetic relay including a coil body positioned over a core, and having at least one winding thereon. A permanent magnet is positioned in close proximity to the coil body. An armature externally embraces the coil winding and with the permanent magnet forms two working air gaps. Contact elements are provided embedded in a pedestal, the contact elements being disposed below the coil body. A monostable or a bistable switching behavior of the relay can be achieved by varying the design and disposition of the coil body, the windings, and one or more permanent magnets.
Inventors
- 👤 Martin Aidn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:14
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/22; H01H51/2272
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
143 words
A polarized electromagnetic relay comprising: a housing, a coil core within said housing, a coil body positioned along said core, at least one coil winding positioned along said coil body, a rocker armature pivotally mounted at its center portion beneath said coil, said rocker armature having opposed end portions providing working air gaps with respective ends of said core, the ends of said rocker armature disposed adjacent the ends of said coil core, a permanent magnet disposed at one side of said coil winding, said permanent magnet having one pole in close proximity to said coil core, a pedestal positioned in said housing, stationary contacts secured to said pedestal, and spaced movable contact elements on said pedestal below said rocker armature being disposed between said pedestal and said coil body and positioned to be selectively actuated by rocking movement of said rocker armature.
Claim 2
Dependent Claim
143 words
A polarized electromagnetic relay comprising: a housing, a coil core within said housing, a coil body positioned along said core, at least one coil winding positioned along said coil body, a rocker armature pivotally mounted at its center portion beneath said coil, said rocker armature having opposed end portions providing working air gaps with respective ends of said core, the ends of said rocker armature disposed adjacent the ends of said coil core, a permanent magnet disposed at one side of said coil winding, said permanent magnet having one pole in close proximity to said coil core, a pedestal positioned in said housing, stationary contacts secured to said pedestal, and spaced movable contact elements on said pedestal below said rocker armature being disposed between said pedestal and said coil body and positioned to be selectively actuated by rocking movement of said rocker armature.
Claim 3
Dependent Claim
31 words
A relay as claimed in claim 1 which includes: a coil body flange extending from said core, said armature being seated on said flange in proximity to its center of gravity.
Claim 4
Dependent Claim
28 words
A relay as claimed in claim 2 wherein: said flange has a cylindrical shaped projection and said armature has a cylindrical depression into which said projection is received.
Claim 5
Dependent Claim
21 words
A relay as claimed in claim 1 which incudes: an insulating film disposed between said armature and said movable contact elements.
Claim 6
Dependent Claim
36 words
A relay as claimed in claim 1 which includes: projections on said coil body adjacent said armature, said projections being seated against said pedestal and defining the distance between said armature and said movable contact elements.
Claim 7
Dependent Claim
21 words
A relay as claimed in claim 1 which includes: means providing a mortise joint between said coil body and said pedestal.
Claim 8
Dependent Claim
30 words
A relay as claimed in claim 1 which includes: contact terminal elements embedded in said pedestal, and contact surfaces for said contact elements flush with the surface of said pedestal.
Claim 9
Dependent Claim
40 words
A relay as claimed in claim 1 in which: said contact elements include stationary contact elements and prestressed movable contact elements having a spring bias urging said movable contact elements toward said armature, and terminal elements extending through said pedestal.
Claim 10
Dependent Claim
30 words
A relay as claimed in claim 8 in which: said movable contact elements include an integral bearing portion, said bearing portion being received in a notch of a terminal element.
Claim 11
Dependent Claim
34 words
A relay as claimed in claim 8 which includes: an insulator piece securing said armature to said movable contact elements, and a conductive foil electrically connecting said movable contact elements to said terminal elements.
Claim 12
Dependent Claim
32 words
A relay as claimed in claim 1 in which said coil body includes a flange having a bearing surface formed thereon and coils on said core on both sides of said flange.
Claim 13
Dependent Claim
20 words
A relay as claimed in claim 1 which includes: a bearing element disposed between said coil winding and said armature.
Claim 14
Dependent Claim
27 words
A relay as claimed in claim 12 wherein said bearing element is composed of ferromagnetic material and is positioned to conduct magnetic flux from said permanent magnet.
Claim 15
Dependent Claim
24 words
A relay as claimed in claim 12 wherein said bearing element is composed of an insulating material and is secured to said coil body.
Claim 16
Dependent Claim
20 words
A relay as claimed in claim 14 which includes: a filstrip hinge connecting said bearing element to said coil body.
Claim 17
Dependent Claim
26 words
A relay as claimed in claim 1 wherein: said coil core extends beyond said winding and provides a space in which said permanent magnet is located.
Claim 18
Dependent Claim
27 words
A relay as claimed in claim 1 wherein: said coil body has spaced windings therealong, with said permanent magnet being located in the space between said windings.
Claim 19
Dependent Claim
19 words
A relay as claimed in claim 17 in which: said permanent magnet has a knife-edge bearing against said armature.
Claim 20
Dependent Claim
24 words
A relay as claimed in claim 17 which includes: a bearing piece bottoming said permanent magnet and having a bearing surface abutting said armature.
Claim 21
Dependent Claim
36 words
A relay as claimed in claim 1 in which: said coil body has a centrally disposed flange having a bearing surface abutting said armature, and a permanent magnet positioned at each end of said coil body.
Claim 22
Dependent Claim
30 words
A relay as claimed in claim 1 in which: said armature is straight and said coil core has offset end portions beyond said winding in parallel relation to said armature.
Claim 23
Dependent Claim
30 words
A relay according to claim 1 in which said coil core and said armature are identically shaped and are rotated relative to each other to provide said working air gaps.
Claim 24
Dependent Claim
18 words
A relay according to claim 1 which includes: a bearing spring securing said armature to said coil body.
Claim 25
Dependent Claim
58 words
A relay according to claim 1 which includes: a movable contact spring having one end at one side of the base of said housing and a free end switchable between two cooperating contact elements disposed at the opposite end of said base, said control spring having a bead formed therein serving as a contact point for said armature.
References Cited (Backward Citations)
GB1083873A
Cited
DE2423286A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |