US4837538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay
Assignee: Siemens AG
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Filing: 1988-09-09
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Granted: 1989-06-06
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Expires: 2008-09-09
Abstract
Abstract An electromagnetic relay includes a coil member having flanges and an angular yoke and a flat armature seated in front of a free end of the yoke. A terminal angle is secured to a leg of the yoke and serves for bearing the armature and for connection of a contact spring connected to the armature. During assembly, the armature assembly composed of the armature, the terminal angle and the leaf spring is preassembled and joined to the coil assembly. Afterwards, the entire magnetic system assembly is placed into a pedestal assembly which includes terminal elements and plug shafts for the coil terminals as well as cooperating contact elements. The plug shafts in the pedestal can be optionally equipped with different cooperating contact elements.
Inventors
- 👤 Michael Dittmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:47
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/14; H01H50/02; H01H50/04; H01H50/041; H01H50/042; H01H50/16; H01H50/18; H01H50/24; H01H50/28; H01H1/00; H01H1/58; H01H1/5822; H01H11/00; H01H11/0006; H01H11/0012; H01H50/021; H01H50/54; H01H50/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
319 words
An electromagnetic relay, comprising: a coil member carrying a winding and having an axis extending parallel to a terminal plane of said relay, said coil member including coil flanges: winding supporting wires secured in said coil flanges; a core extending into said coil member in a direction of said axis; an angular yoke having a first leg coupled to an end of said core, said angular yoke having a second leg extending parallel to said axis and adjacent said winding; a flat armature seated on a free end of said second leg of said angular yoke, said flat armature forming a working air gap with a free end of said core; a leaf spring having a restoring leg biasing said flat armature relative to said angular yoke, said leaf spring having at least one contact spring leg; at least one cooperating contact element cooperating with said at least one contact spring leg; a separately manufactured pedestal having said coil member arranged thereon, said pedestal having a plurality of optionally equippable plug shafts for different types of cooperating contact elements; terminal elements for said coil member and for said contact elements being fixed in said pedestal; said winding supporting wires being at an underside of said coil member and being connected to appertaining ones of said terminal elements and; a separately fabricated terminal angle connected to said leaf spring in electrically conductive fashion and being secured to said second leg of said angled yoke, said terminal angle having a first section lying flat on said second leg of said angular yoke, said terminal angle having a second section bent at a substantially right angle relative to said first section, said second section surrounding an end of said flat armature that is seated on said angular yoke, said terminal element having a third section extending relative to an underside of said relay and forming a terminal element for said leaf spring.
Claim 2
Dependent Claim
319 words
An electromagnetic relay, comprising: a coil member carrying a winding and having an axis extending parallel to a terminal plane of said relay, said coil member including coil flanges: winding supporting wires secured in said coil flanges; a core extending into said coil member in a direction of said axis; an angular yoke having a first leg coupled to an end of said core, said angular yoke having a second leg extending parallel to said axis and adjacent said winding; a flat armature seated on a free end of said second leg of said angular yoke, said flat armature forming a working air gap with a free end of said core; a leaf spring having a restoring leg biasing said flat armature relative to said angular yoke, said leaf spring having at least one contact spring leg; at least one cooperating contact element cooperating with said at least one contact spring leg; a separately manufactured pedestal having said coil member arranged thereon, said pedestal having a plurality of optionally equippable plug shafts for different types of cooperating contact elements; terminal elements for said coil member and for said contact elements being fixed in said pedestal; said winding supporting wires being at an underside of said coil member and being connected to appertaining ones of said terminal elements and; a separately fabricated terminal angle connected to said leaf spring in electrically conductive fashion and being secured to said second leg of said angled yoke, said terminal angle having a first section lying flat on said second leg of said angular yoke, said terminal angle having a second section bent at a substantially right angle relative to said first section, said second section surrounding an end of said flat armature that is seated on said angular yoke, said terminal element having a third section extending relative to an underside of said relay and forming a terminal element for said leaf spring.
Claim 3
Dependent Claim
55 words
An electromagnetic relay as claimed in claim 1, wherein said restoring leg of said leaf spring is frame-shaped, said restoring leg having a fastening tongue extending into a frame of said frame-shaped restoring leg from a free end of said restoring leg, said fastening tongue being secured to said second section of said terminal angle.
Claim 4
Dependent Claim
28 words
An electromagnetic relay as claimed in claim 1, wherein said restoring leg of said leaf spring is bent at an angle following said angle of said terminal angle.
Claim 5
Dependent Claim
32 words
An electromagnetic relay as claimed in claim 1, wherein said terminal elements anchored in said pedestal each include an angled seating web at a surface for contacting with said winding supporting wires.
Claim 6
Dependent Claim
19 words
An electromagnetic relay as claimed in claim 1, wherein said pedestal is provided with chambers for accepting additional components.
Claim 7
Dependent Claim
33 words
An electromagnetic relay as claimed in claim 1, wherein said pedestal includes a first plug shaft for a make-contact cooperating contact element and a further plug shaft for a further cooperating contact element.
Claim 8
Dependent Claim
34 words
An electromagnetic relay as claimed in claim 1, wherein said at least one cooperating contact element includes a cooperating contact element having an angled cross-web that holds said coil member and said pedestal together.
Claim 9
Dependent Claim
40 words
An electromagnetic relay as claimed in claim 1, wherein said terminal elements each have at least one shoulder resting on an upper side of said terminal and have an obliquely placed catch tab clamped to an underside of said pedestal.
Claim 10
Dependent Claim
17 words
An electromagnetic relay as claimed in claim 1, wherein said leaf spring includes two parallel contact legs.
Claim 11
Dependent Claim
52 words
An electromagnetic relay as claimed in claim 1, further comprising: a stop peg extending from a free end of said armature and defining a quiescent position of said armature when said relay is equipped with only a make-contact and serves as impact protection when said relay is equipped with a switch-over contact.
References Cited (Backward Citations)
US3277409A
Cited
DE7033403U
Cited
GB2027996A
Cited
FR2473780A1
Cited
US4533889A
Cited
DE3428595A1
Cited
US4745382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |