EP0252344B1 - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- EP0252344B1 EP0252344B1 EP87108722A EP87108722A EP0252344B1 EP 0252344 B1 EP0252344 B1 EP 0252344B1 EP 87108722 A EP87108722 A EP 87108722A EP 87108722 A EP87108722 A EP 87108722A EP 0252344 B1 EP0252344 B1 EP 0252344B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- spring
- contact
- contact spring
- armature
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000012858 resilient material Substances 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000013011 mating Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5822—Flexible connections between movable contact and terminal
Definitions
- the invention relates to an electromagnetic relay with a core interspersed with its axis arranged parallel to a base plane, a yoke arranged parallel to the coil axis next to the winding, with a flat armature which is mounted on the free yoke end and with the free core end forms a working air gap and with a contact arrangement arranged on the end face on the side of the armature opposite the coil with at least one fixed counter-contact element and a contact spring which is operatively connected to the armature and whose connecting elements are anchored in a base body.
- an electromagnetic relay in which a base body made of insulating material is provided, which carries both a magnet system and contact elements.
- the base body is formed by extrusion-coating the wound coil, thereby creating reliable insulation between the coil winding and the contact elements.
- the object of the invention is to develop a relay of the type mentioned in such a way that the contact spring can receive the smallest possible spring rate, but does not increase the width of the relay structure.
- this object is achieved in that the contact spring is anchored in the area of one side of the base body adjacent to the armature bearing, extends with a first leg essentially over the entire width of the relay interior and in the area of the opposite side of the base body with the free armature end is coupled that the contact points are close to the second side of the base body and that a second leg of the contact spring extends in a U-shape from the free armature end to the contact point.
- the available width of the relay for the spring is fully utilized, with the U-shaped second spring leg making the armature movement to the contact point is transmitted.
- the spring With its L-shaped or Z-shaped first spring section and the U-shaped second spring section attached to it, the spring is given a total Y shape which makes optimal use of the available contact space in order to achieve the lowest possible spring rate with the smallest space requirement, on the other hand also the necessary creepage distances and clearances between the contact point and the armature of the relay for switching of high current or high voltages.
- the contact point is moved out of the bearing plane of the armature by the U-shaped second spring leg, so that there is a relatively large friction for self-cleaning and shock absorption of the contacts.
- the first and the second leg of the contact spring can for example be bent in one piece from a spring material with a constant thickness. Since a larger spring rate is desired for the U-shaped second spring leg than for the first leg, this second spring leg can be stiffened somewhat, for example, by beads or similar shapes.
- the two spring legs prefabricate the two spring legs from different leaf spring material and to connect them to one another by welding or similar measures.
- the two spring legs can be made either from different materials with different spring properties or from spring plates with different thicknesses. So it is also possible to design the second spring leg in cross-section so that it dissipates the heat (caused by the switching arc) well from the contact; this heat can be partially dissipated from the second spring leg to the anchor, so that the first spring leg is not thermally stressed.
- FIG. 1 is a side view of a relay designed according to the invention, the housing being partially cut open
- Fig. 2 is a plan view of the relay of Fig. 1 with the housing cap cut open.
- the relay shown in FIGS. 1 and 2 has a housing consisting of a base 1 and a cap 2, in which a coil body 3 with winding 4 and an angular yoke 5 are arranged.
- a coil core 6 is coupled on the one hand to the yoke 5 and has at its other end a pole plate 7 which forms a working air gap with a plate-shaped armature 8.
- This armature 8 is supported at the free end of the yoke 5, a bearing plate 9 placed on the yoke forming a bearing notch with the yoke.
- the bearing plate 9 is hooked onto the lugs 5a of the yoke with laterally formed locking tabs 9a.
- a bearing spring 10 is formed, which engages with a spring portion 10a bent upwards into a notch 11 of the armature and presses it into the bearing.
- the width of the relay is determined by the diameter of the coil 3, 4 and the thickness of the yoke 5, which, lying side by side, occupy the entire width between the two side walls of the housing cap 2.
- a contact space 12 is provided, in which two mating contact elements 13 and 14 and a connecting element 15 for a central contact spring 16 are arranged and anchored in the base, for example by means of plug-in fastening.
- This center contact spring consists of two spring legs, a substantially elongated first spring leg 16a bent at the ends in a Z-shape and a substantially U-shaped second spring leg 16b.
- connection element 15 for the contact spring is moved as far as possible to the one side wall 2a of the cap 2 and is arranged in the base 1 approximately parallel to this side wall.
- the spring section 16a is fastened to the outside of the connection element 15 with a bent fastening section 16c, so that from this fastening section 16c to the free armature end with the driving tooth 17 the greatest possible spring length is created. So that the width of the relay is largely used for the contact spring.
- the end 16d of the spring leg 16a is connected to the U-shaped spring leg 16b near the free anchor end, for example welded.
- This U-shaped spring leg 16b has at one end a bent driver tab 16e with which it is hooked into the driver tooth 17 of the armature 8.
- the other end of the U-shaped contact spring leg 16b carries the center contact 18, which interacts with the counter-contacts 19 and 20.
- the contact spring 16 must have a large cross section for guiding large currents, which is achieved by a large width perpendicular to the image plane of FIG. 2.
- the two spring legs 16a and 16b are manufactured separately and then connected, they can also consist of spring material of different thicknesses or of materials with different spring properties. It is important that the spring leg 16a has a low spring rate, while the spring rate of the leg 16b should be larger. Under certain circumstances, this can also be achieved by additional beads or other formations, in particular when the two spring legs 16a and 16b are formed from the same material or are produced in one piece.
- a partition is provided in the housing, which is integrally formed on the cap in the exemplary embodiment shown, but could also be provided on the base in another embodiment.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Magnetic Treatment Devices (AREA)
- Contacts (AREA)
Abstract
Description
Die Erfindung betrifft ein elektromagnetisches Relais mit einer von einem Kern durchsetzten, mit ihrer Achse parallel zu einer Grundebene angeordneten Spule, einem parallel zur Spulenachse neben der Wicklung angeordneten Joch, mit einem flachen Anker, der an dem freien Jochende gelagert ist und mit dem freien Kernende einen Arbeitsluftspalt bildet und mit einer stirnseitig an der der Spule entgegengesetzten Seite des Ankers angeordneten Kontaktanordnung mit mindestens einem feststehenden Gegenkontaktelement und einer mit dem Anker in Wirkverbindung stehenden Kontaktfeder, deren Anschlußelemente in einem Grundkörper verankert sind.The invention relates to an electromagnetic relay with a core interspersed with its axis arranged parallel to a base plane, a yoke arranged parallel to the coil axis next to the winding, with a flat armature which is mounted on the free yoke end and with the free core end forms a working air gap and with a contact arrangement arranged on the end face on the side of the armature opposite the coil with at least one fixed counter-contact element and a contact spring which is operatively connected to the armature and whose connecting elements are anchored in a base body.
Aus der DE-A-3437544 ist ein elektromagnetisches Relais bekannt, bei dem ein Grundkörper aus Isolierstoff vorgesehen, ist der sowohl ein Magnetsystem als auch kontaktelemente trägt. Der Grundkörper ist durch Umspritzen der bewickelten Spule gebildet, wodurch eine sichere Isolierung zwischen der Spulenwicklung und den Kontaktelementen geschaffen wird.From DE-A-3437544 an electromagnetic relay is known, in which a base body made of insulating material is provided, which carries both a magnet system and contact elements. The base body is formed by extrusion-coating the wound coil, thereby creating reliable insulation between the coil winding and the contact elements.
Aufgabe der Erfindung ist es, ein Relais der eingangs genannten Art so weiterzubilden, daß die Kontaktfeder eine möglichst kleine Federrate erhalten kann, jedoch die Breite des Relaisaufbaus nicht vergrößert.The object of the invention is to develop a relay of the type mentioned in such a way that the contact spring can receive the smallest possible spring rate, but does not increase the width of the relay structure.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Kontaktfeder im Bereich der einen, der Ankerlagerung benachbarten Seite des Grundkörpers verankert ist, sich mit einem ersten Schenkel im wesentlichen über die gesamte Breite des Relaisinnenraums erstreckt und im Bereich der entgegengesetzten Seite des Grundkörpers mit dem freien Ankerende gekoppelt ist, daß die Kontaktstellen in der Nähe der zweiten Seite des Grundkörpers liegen und daß ein zweiter Schenkel der Kontaktfeder U-förmig vom freien Ankerende zur Kontaktstelle verläuft.According to the invention, this object is achieved in that the contact spring is anchored in the area of one side of the base body adjacent to the armature bearing, extends with a first leg essentially over the entire width of the relay interior and in the area of the opposite side of the base body with the free armature end is coupled that the contact points are close to the second side of the base body and that a second leg of the contact spring extends in a U-shape from the free armature end to the contact point.
Durch die Befestigung des ersten Federschenkels an der einen Längsseite des Relais und ihre Ankoppelung an den Anker an der gegenüberliegenden Längsseite wird die zur Verfügung stehende Breite des Relais für die Feder voll ausgenutzt, wobei mit dem U-förmig angesetzten zweiten Federschenkel die Ankerbewegung zu der Kontaktstelle übertragen wird. Die Feder erhält also mit ihrem L-förmigen oder Z-förmigen ersten Federabschnitt und dem daran angesetzten U-förmigen zweiten Federabschnitt insgesamt eine Y-Form, die den zur Verfügung stehenden Kontaktraum optimal ausnutzt, um bei geringstem Platzbedarf eine möglichst geringe Federrate zu erreichen, andererseits aber auch die erforderlichen Kriech- und Luftstrecken zwischen der Kontaktstelle und dem Anker des Relais für das Schalten von Starkstrom bzw. von hohen Spannungen zu gewährleisten. Durch den U-förmigen zweiten Federschenkel wird die Kontaktstelle aus der Lagerebene des Ankers heraus verlegt, so daß sich eine verhältnismäßig große Reibung zur Selbstreinigung und Prelldämpfung der Kontakte ergibt.By attaching the first spring leg to one long side of the relay and coupling it to the armature on the opposite long side, the available width of the relay for the spring is fully utilized, with the U-shaped second spring leg making the armature movement to the contact point is transmitted. With its L-shaped or Z-shaped first spring section and the U-shaped second spring section attached to it, the spring is given a total Y shape which makes optimal use of the available contact space in order to achieve the lowest possible spring rate with the smallest space requirement, on the other hand also the necessary creepage distances and clearances between the contact point and the armature of the relay for switching of high current or high voltages. The contact point is moved out of the bearing plane of the armature by the U-shaped second spring leg, so that there is a relatively large friction for self-cleaning and shock absorption of the contacts.
Der erste und der zweite Schenkel der Kontaktfeder können beispielsweise einstückig aus einem Federmaterial mit gleichbleibender Dicke gebogen werden. Da für den U-förmigen zweiten Federschenkel eine größere Federrate als für den ersten Schenkel erwünscht ist, kann dieser zweite Federschenkel beispielsweise durch Sicken oder ähnliche Ausformungen etwas versteift werden.The first and the second leg of the contact spring can for example be bent in one piece from a spring material with a constant thickness. Since a larger spring rate is desired for the U-shaped second spring leg than for the first leg, this second spring leg can be stiffened somewhat, for example, by beads or similar shapes.
Andererseits wäre es aber auch möglich, die beiden Federschenkel aus unterschiedlichem Blattfedermaterial vorzufertigen und miteinander durch Schweißen oder ähnliche Maßnahmen zu verbinden. Dabei können die beiden Federschenkel entweder aus unterschiedlichem Material mit unterschiedlichen Federeigenschaften oder auch aus Federblechen mit unterschiedlicher Dicke hergestellt werden. So ist es auch möglich, den zweiten Federschenkel im Querschnitt so auszulegen, daß er die (durch den Schaltlichtbogen) entstehende Wärme vom Kontakt gut ableitet; diese Wärme kann vom zweiten Federschenkel teilweise zum Anker abgeleitet werden, so daß der erste Federschenkel thermisch nicht belastet wird.On the other hand, it would also be possible to prefabricate the two spring legs from different leaf spring material and to connect them to one another by welding or similar measures. The two spring legs can be made either from different materials with different spring properties or from spring plates with different thicknesses. So it is also possible to design the second spring leg in cross-section so that it dissipates the heat (caused by the switching arc) well from the contact; this heat can be partially dissipated from the second spring leg to the anchor, so that the first spring leg is not thermally stressed.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel anhand der Zeichnung näher erläutert. Es zeigen
Fig. 1 ein erfindungsgemäß gestaltetes Relais in einer Seitenansicht, wobei das Gehäuse teilweise aufgeschnitten ist,
Fig. 2 eine Draufsicht auf das Relais von Fig. 1 mit aufgeschnittener Gehäusekappe.The invention is explained in more detail using an exemplary embodiment with reference to the drawing. Show it
1 is a side view of a relay designed according to the invention, the housing being partially cut open,
Fig. 2 is a plan view of the relay of Fig. 1 with the housing cap cut open.
Das in den Fig. 1 und 2 dargestellte Relais besitzt ein Gehäuse, bestehend aus einem Sockel 1 und einer Kappe 2, in welcher ein Spulenkörper 3 mit Wicklung 4 und einem winkelförmigen Joch 5 angeordnet sind. Ein Spulenkern 6 ist einerseits an das Joch 5 angekoppelt und besitzt an seinem anderen Ende eine Polplatte 7, welche mit einem plattenförmigen Anker 8 einen Arbeitsluftspalt bildet. Dieser Anker 8 ist am freien Ende des Joches 5 gelagert, wobei eine auf das Joch aufgesetzte Lagerplatte 9 mit dem Joch eine Lagerkerbe bildet. Die Lagerplatte 9 ist mit seitlich angeformten Rastlappen 9a an Nasen 5a des Joches eingehängt. Am freien Ende der aus ferromagnetischem Federmaterial bestehenden Lagerplatte 9 ist eine Lagerfeder 10 angeformt, welche mit einem nach oben gebogenen Federabschnitt 10a in eine Kerbe 11 des Ankers eingreift und diesen in die Lagerung drückt.The relay shown in FIGS. 1 and 2 has a housing consisting of a
Die Breite des Relais wird durch den Durchmesser der Spule 3, 4 und die Dicke des Joches 5 bestimmt, welche nebeneinander liegend die gesamte Breite zwischen den beiden Seitenwänden der Gehäusekappe 2 einnehmen. Stirnseitig vor der Polplatte 7 und dem Anker 8 ist ein Kontaktraum 12 vorgesehen, in welchem zwei Gegenkontaktelemente 13 und 14 sowie ein Anschlußelement 15 für eine Mittel-Kontaktfeder 16 angeordnet und im Sockel, beispielsweise durch Steckbefestigung, verankert sind. Diese Mittelkontaktfeder besteht aus zwei Federschenkeln, einem im wesentlichen langgestreckten und an den Enden Z-förmig abgebogenen ersten Federschenkel 16a sowie einem im wesentlichen U-förmig geformten zweiten Federschenkel 16b. Das Anschlußelement 15 für die Kontaktfeder ist so weit wie möglich an die eine Seitenwand 2a der Kappe 2 gerückt und im Sockel 1 etwa parallel zu dieser Seitenwand angeordnet. Der Federabschnitt 16a ist mit einem abgebogenen Befestigungsabschnitt 16c an der Außenseite des Anschlußelementes 15 befestigt, so daß von diesem Befestigungsabschnitt 16c bis zum freien Ankerende mit dem Mitnehmerzahn 17 eine möglichst große Federlänge entsteht. Damit wird die Breite des Relais weitgehend für die Kontaktfeder ausgenutzt. Das Ende 16d des Federschenkels 16a ist in der Nähe des freien Ankerendes mit dem U-förmigen Federschenkel 16b verbunden, beispielsweise verschweißt. Dieser U-förmige Federschenkel 16b besitzt an einem Ende einen abgebogenen Mitnehmerlappen 16e, mit dem er in den Mitnehmerzahn 17 des Ankers 8 eingehängt ist. Das andere Ende des U-förmigen Kontaktfederschenkels 16b trägt den Mittelkontakt 18, der mit den Gegenkontakten 19 und 20 zusammenwirkt.The width of the relay is determined by the diameter of the
Die Kontaktfeder 16 muß zur Führung großer Ströme einen großen Querschnitt besitzen, was durch eine große Breite senkrecht zur Bildebene der Fig. 2 erreicht wird. Soweit die beiden Federschenkel 16a und 16b getrennt gefertigt und dann verbunden werden, können sie auch aus Federmaterial unterschiedlicher Dicke oder auch aus Materialien unterschiedlicher Federeigenschaften bestehen. Wichtig ist, daß der Federschenkel 16a eine geringe Federrate besitzt, während die Federrate des Schenkels 16b größer sein sollte. Dies kann unter Umständen auch durch zusätzliche Sicken oder sonstige Anformungen erreicht werden, insbesondere dann, wenn die beiden Federschenkel 16a und 16b aus demselben Material geformt bzw. einstückig hergestellt werden. Zum Schalten großer Ströme kann es darüber hinaus auch zweckmäßig sein, das Anschlußelement 15 zusätzlich über eine Litze unmittelbar mit dem beweglichen Mittelkontakt 18 zu verbinden, um die Kontaktfeder 16 nicht übermäßig zu belasten.The
Zur Erzielung der erforderlichen Kriech- und Luftstrecken zwischen dem Gegenkontakt 20 und dem Anker ist im Gehäuse eine Trennwand vorgesehen, welche im gezeigten Ausführungsbeispiel an der Kappe angeformt ist, in einer anderen Ausführungsform aber auch am Sockel vorgesehen sein könnte.To achieve the necessary creepage distances and clearances between the
Claims (7)
- Electromagnetic relay having a coil (3, 4) penetrated by a core (6) and arranged with its axis parallel to a base plane, a yoke (5) arranged parallel to the coil axis next to the winding (4), having a flat armature (8) which is mounted on the free yoke end and, together with the free core end (7), forms an operating air gap, and having a contact arrangement, arranged at the end on the side of the armature (8) opposite the coil (4), with at least one fixed reciprocating contact element (13, 14) and one contact spring (16) in operative connection with the armature (8), the connecting elements (13, 14, 15) of said contact spring being secured in a base body (1), characterised in that the contact spring (16) is secured in the region of the one side of the base body (1) adjacent to the armature mount, extends with a first leg (16a) essentially over the entire width of the inside of the relay and is coupled in the region of the opposite side of the base body (1) to the free armature end (17), in that the contact points (18, 19, 20) lie in the vicinity of the second side of the base body (1), and in that a second leg (16b) of the contact spring extends in a U-shape from the free armature end (17) to the contact point (18).
- Relay according to Claim 1, characterised in that the first and the second leg of the contact spring (16) are constructed as a single piece.
- Relay according to Claim 1, characterised in that the first leg (16a) of the contact spring consists of a soft resilient material and the second leg (16b) of a hard resilient material.
- Relay according to one of Claims 1 to 3, characterised in that the spring constant of the first leg (16a) of the contact spring (16) is smaller, due to different cross-sectional design, than that of the second leg (16b).
- Relay according to one of Claims 1 to 4, characterised in that the second spring leg (16b) is stiffened by the formation of beads.
- Relay according to one of Claims 1 to 5, characterised in that the connecting element (15) for the contact spring is secured in the base (1) with its main plane parallel to the longitudinal side of said base, and in that the contact spring (16) is mounted on the outside of the connecting element (15).
- Relay according to one of Claims 1 to 5, characterised in that the contact spring (16) is additionally connected by its contacting end (18) to its connecting element (15) via a flexible conducting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87108722T ATE64671T1 (en) | 1986-06-23 | 1987-06-16 | ELECTROMAGNETIC RELAY. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3620937 | 1986-06-23 | ||
| DE3620937 | 1986-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0252344A1 EP0252344A1 (en) | 1988-01-13 |
| EP0252344B1 true EP0252344B1 (en) | 1991-06-19 |
Family
ID=6303483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87108722A Expired - Lifetime EP0252344B1 (en) | 1986-06-23 | 1987-06-16 | Electromagnetic relay |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4740769A (en) |
| EP (1) | EP0252344B1 (en) |
| JP (1) | JPS6326920A (en) |
| AT (1) | ATE64671T1 (en) |
| DE (1) | DE3770880D1 (en) |
| ES (1) | ES2022211B3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10607799B2 (en) | 2016-10-07 | 2020-03-31 | Te Connectivity Germany Gmbh | Electrical switch having a direct armature coupling |
| EP3059754B1 (en) * | 2009-06-23 | 2022-03-09 | Panasonic Intellectual Property Management Co., Ltd. | Electromagnetic relay |
| US11887797B2 (en) | 2016-10-07 | 2024-01-30 | Te Connectivity Germany Gmbh | Electrical switching element comprising a direct armature coupling |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3835118A1 (en) * | 1988-10-14 | 1990-04-19 | Siemens Ag | ELECTROMAGNETIC RELAY |
| US5872497A (en) * | 1996-10-23 | 1999-02-16 | Physio-Control Corporation | High energy transfer relay |
| US7728704B2 (en) * | 2007-06-07 | 2010-06-01 | Trombetta, Llc | Method for reducing continuous charge |
| JP2014165152A (en) * | 2013-02-27 | 2014-09-08 | Fujitsu Component Ltd | Electromagnetic relay |
| DE102014103247A1 (en) * | 2014-03-11 | 2015-09-17 | Tyco Electronics Austria Gmbh | Electromagnetic relay |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR769391A (en) * | 1933-03-01 | 1934-08-24 | Siemens Ag | Relay whose armature is supported by a leaf spring |
| US3295078A (en) * | 1964-12-16 | 1966-12-27 | Guardian Electric Mfg Company | Relay |
| US4199740A (en) * | 1978-04-24 | 1980-04-22 | General Electric Company | Switch device and method of making |
| DE3437544A1 (en) * | 1984-10-12 | 1986-04-17 | Siemens AG, 1000 Berlin und 8000 München | Electromagnetic relay |
| US4720694A (en) * | 1985-05-22 | 1988-01-19 | Siemens Aktiengesellschaft | Electromagnetic relay |
-
1987
- 1987-05-28 US US07/055,499 patent/US4740769A/en not_active Expired - Fee Related
- 1987-06-16 ES ES87108722T patent/ES2022211B3/en not_active Expired - Lifetime
- 1987-06-16 EP EP87108722A patent/EP0252344B1/en not_active Expired - Lifetime
- 1987-06-16 AT AT87108722T patent/ATE64671T1/en not_active IP Right Cessation
- 1987-06-16 DE DE8787108722T patent/DE3770880D1/en not_active Expired - Fee Related
- 1987-06-19 JP JP62151562A patent/JPS6326920A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3059754B1 (en) * | 2009-06-23 | 2022-03-09 | Panasonic Intellectual Property Management Co., Ltd. | Electromagnetic relay |
| US10607799B2 (en) | 2016-10-07 | 2020-03-31 | Te Connectivity Germany Gmbh | Electrical switch having a direct armature coupling |
| US11887797B2 (en) | 2016-10-07 | 2024-01-30 | Te Connectivity Germany Gmbh | Electrical switching element comprising a direct armature coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE64671T1 (en) | 1991-07-15 |
| ES2022211B3 (en) | 1991-12-01 |
| DE3770880D1 (en) | 1991-07-25 |
| US4740769A (en) | 1988-04-26 |
| JPS6326920A (en) | 1988-02-04 |
| EP0252344A1 (en) | 1988-01-13 |
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