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EP0876674B1 - Electromagnetic relay of narrow construction and method of producing the same - Google Patents

Electromagnetic relay of narrow construction and method of producing the same Download PDF

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Publication number
EP0876674B1
EP0876674B1 EP97906083A EP97906083A EP0876674B1 EP 0876674 B1 EP0876674 B1 EP 0876674B1 EP 97906083 A EP97906083 A EP 97906083A EP 97906083 A EP97906083 A EP 97906083A EP 0876674 B1 EP0876674 B1 EP 0876674B1
Authority
EP
European Patent Office
Prior art keywords
contact
base body
plane
spring
supports
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
Application number
EP97906083A
Other languages
German (de)
French (fr)
Other versions
EP0876674A1 (en
Inventor
Ralf Hoffmann
Angelo Polese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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Filing date
Publication date
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Publication of EP0876674A1 publication Critical patent/EP0876674A1/en
Application granted granted Critical
Publication of EP0876674B1 publication Critical patent/EP0876674B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/54Contact arrangements
    • H01H50/548Contact arrangements for miniaturised relays
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0056Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/02Bases; Casings; Covers
    • H01H50/026Details concerning isolation between driving and switching circuit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49105Switch making
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/5313Means to assemble electrical device
    • Y10T29/532Conductor
    • Y10T29/53248Switch or fuse

Definitions

  • the invention relates to an electromagnetic relay with a narrow, elongated body made of insulating material, who defines a base level with its underside and on an electromagnetic system and a contact arrangement on its upper side carries, the contact arrangement contact carrier in the form of at least one fixed contact carrier and at least a movable, possibly connected to a spring support,
  • Contact spring includes, the flat connecting lugs all in one common sheet metal plane parallel to the longitudinal axis of the base body and are perpendicular to the ground plane, which with a Middle section are anchored in the base body and their contacting end sections due to bends opposite each other with a predetermined contact distance stand, at least the fixed contact carrier in the material of the base body are embedded.
  • the Invention a method for producing such a relay.
  • the aim of the present invention is to make a narrow electromagnetic To create relays of the type mentioned and to provide a process for its manufacture, which at any contact configuration as make, break and always the same narrow, especially as a changeover contact Construction enables, at the same time, large insulation distances compared to the magnet system and a particularly simple Manufactured by arranging the connection lugs in one allows single sheet level; the connecting lugs should hanging at least partially on a circuit board in the Base body can be embedded.
  • this goal is achieved with a relay of the named Art achieved in that all contact elements each with its central section in the area of anchoring in Base bodies are angled so that their contact End sections from their exit point from the base body in a single row, but in parallel, perpendicular to the base plane and to the level of the connecting lugs Levels stand, and that each contact spring in the direction of Longitudinal axis of the relay is operated.
  • the relay according to the invention there are the contacts Sections of the contact carrier transverse to the longitudinal axis of the Relay, causing an actuation in the direction of this longitudinal axis becomes possible. Since the contact carrier in each case only in one Arranged in series is a narrow structure of the relay in guaranteed in any case, since the width depends on the extent of the Magnet system is determined and also a changeover contact Width not enlarged. There could even be two sets of contacts arranged one behind the other in the longitudinal direction of the relay and be operated by a longitudinal slide.
  • the contact carriers are expediently in their main body anchored middle section at least by two perpendicular bending axes angled, whereby the Transition from the level of the connecting lugs to the respective one Contact level is accomplished, but at the same time a very material-saving Obtaining the contact carrier from the board is made possible. Due to the bend in the area of the Base body, the connecting lugs can be a desired have large isolation distances from each other while their contacting End sections the necessary short contact distance receive.
  • the design according to the invention is particularly advantageous Realize contact arrangement in a relay in which the main body is a partition between the magnet system and the contact arrangement and one perpendicular to the bottom side Has insulating wall on a long side of the base body; in In this case, insulation is particularly favorable between the contact carriers and the magnet system if the level of the connecting lugs on one side in the area below the longitudinal insulating wall runs.
  • a base body is molded from plastic, provided with the contact carriers, on this base body then an electromagnetic system is installed; according to the invention becomes at least one contact carrier from a sheet metal plate with a connecting lug, a middle section and a contact Cut end section so that it with its respective connecting lug still hangs on the circuit board, after that the middle section of each contact carrier bent out of the board level in such a way that the contact End section in its own, to the basic level and to the Board plane vertical plane stands, and then through Embedding the respective middle sections in plastic Base body shaped, after which the connecting lugs finally be separated from the sheet metal.
  • 1 to 4 is the extraction of a relay body with contact arrangement by partial encapsulation of a sheet metal board shown in the various process steps. In doing so won from a board 1 two fixed contact carriers 2 and 3 and processed one after the other in the production run. So 1 and 2 show these fixed contact carriers in a first Process stage I and in a second process stage II.
  • the fixed contact carriers 2 and 3 each cut free from the board. You own in each case a connecting lug 21 or 31, a central section 22 or 32 for embedding in the still to be described Base body and a contacting end section 23 or 33, already at this stage with a fixed contact 24 or 34 is provided.
  • a connecting lug 21 or 31 for embedding in the still to be described Base body and a contacting end section 23 or 33, already at this stage with a fixed contact 24 or 34 is provided.
  • the middle section 22 and 32 By bending the middle section 22 and 32 about mutually perpendicular bending lines 25, 26 and 27 or 35 and 36 the process stage II is reached, in which the two contacting end sections 23 and 33 opposite each other with their fixed contacts 24 and 34 in parallel stand.
  • stage II again as seen in FIG which is followed by stage III.
  • stage III In this stadium is by overmolding the middle sections 22 and 32 Plastic base body 4 of the relay formed the one hand over the connecting lugs 21 and 31 (shown in FIG 4) with the Circuit board 1 is connected, while on the other hand the end sections 23 and 33 of the fixed contact carrier made of plastic protrude from the main body.
  • the bends of the fixed contact carriers are completely embedded in the plastic. Only those lying in the plane of the circuit board 1 are visible Terminal lugs 21 and 31 on the one hand and those in addition vertical contact-making end sections 23 and 33. This allows the fixed contacts with respect to the base body be positioned very precisely. Subsequent deformation the contact carrier is not required.
  • the base body 4 forms a contact block 41, the large insulation distances with ribs and grooves to the magnet system.
  • the base body 4 has a base plate 42, the underside of which defines a base level 11.
  • insulation between the magnet system and the contact arrangement has the base body standing perpendicular to the base plate an insulating wall 43 and on one long side a longitudinal wall 44 that with a ceiling wall 45 a half-shell for receiving one end of the still magnetic system to be described.
  • FIG 4 With a view of the base body from a opposite side can be seen in this case is between the two fixed contact carriers 2 and 3 a receiving slot 5 provided for the plug-in fastening of a contact spring 6.
  • the contact spring itself is on a spring support 62 attached to a terminal lug 61, for example by spot welding.
  • the spring support 62 is opposite its connecting lug 61 angled about a bending axis 65; besides that is Contact spring 6 around a bending axis 66 perpendicular thereto angled above.
  • FIG. 5 shows the fully assembled relay. It is 4 after inserting the contact spring 6 a magnet system 7 with a coil 71, one Core yoke assembly 72 and an anchor 73 on the bottom plate 42 placed and from one long side into the through the Walls 43, 44 and 45 formed half-shell inserted. Since the Wall 44 the magnet system to one side to the contact system covers out, the terminal lugs 21, 31 and 61 are substantially below this longitudinal wall 44th in this way are the creepage distances from the connecting lugs to the open ones Side of the half-shell and thus in addition to the magnet system extended.
  • a slide 8 transmits the switching movement of the armature 73 the end portion 67 of the contact spring 6, which makes the semicircular cut-out contacting section 63 of the Spring is actuated.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Burglar Alarm Systems (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • General Induction Heating (AREA)
  • Contacts (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

PCT No. PCT/DE97/00030 Sec. 371 Date Jun. 29, 1998 Sec. 102(e) Date Jun. 29, 1998 PCT Filed Jan. 9, 1997 PCT Pub. No. WO97/27604 PCT Pub. Date Jul. 31, 1997The relay has, one after the other on an elongate, narrow base body, a magnetic system and a contact arrangement having at least one fixed contact carrier and at least one movable contact spring. The contact carriers are in this case each embedded by a middle section into the plastic of a base body in such a way that their connecting lugs lie in a plane parallel to the longitudinal axis of the relay, while their contact-making end sections, which emerge on the upper side of the base body, lie in planes which are parallel to one another and perpendicular to the plane of the connecting lugs. This enables dimensionally accurate embedding of the contact carriers with good insulation with respect to the magnetic system and with easy processing from a sheet-metal plate.

Description

Die Erfindung betrifft ein elektromagnetisches Relais mit einem schmalen, langgestreckten Grundkörper aus Isolierstoff, der mit seiner Unterseite eine Grundebene festlegt und auf seiner Oberseite ein Elektromagnetsystem und eine Kontaktanordnung trägt, wobei die Kontaktanordnung Kontaktträger in Form von mindestens einem Festkontaktträger und mindestens einer beweglichen, ggf. mit einem Federträger verbundenen, Kontaktfeder umfaßt, deren flache Anschlußfahnen alle in einer gemeinsamen Blechebene parallel zur Längsachse des Grundkörpers und senkrecht zur Grundebene stehen, die mit einem Mittelabschnitt in dem Grundkörper verankert sind und deren kontaktgebende Endabschnitte aufgrund von Abwinkelungen einander mit einem vorgegebenen Kontaktabstand gegenüber stehen, wobei zumindest die Festkontaktträger in dem Material des Grundkörpers eingebettet sind. Außerdem betrifft die Erfindung ein Verfahren zur Herstellung eines solchen Relais.The invention relates to an electromagnetic relay with a narrow, elongated body made of insulating material, who defines a base level with its underside and on an electromagnetic system and a contact arrangement on its upper side carries, the contact arrangement contact carrier in the form of at least one fixed contact carrier and at least a movable, possibly connected to a spring support, Contact spring includes, the flat connecting lugs all in one common sheet metal plane parallel to the longitudinal axis of the base body and are perpendicular to the ground plane, which with a Middle section are anchored in the base body and their contacting end sections due to bends opposite each other with a predetermined contact distance stand, at least the fixed contact carrier in the material of the base body are embedded. In addition, the Invention a method for producing such a relay.

Relais mit einem derartig schmalen Aufbau sind beispielsweise aus der DE 38 29 035 C2 (nächstliegender Stand der Technik) und der DE 38 35 105 C2 bekannt. Durch die Verankerung der Kontaktträger in einer einzigen Reihe und durch die Lage der Anschlußfahnen in einer einzigen Blechebene ergibt sich eine vorteilhafte Herstellung, weil die teilweise freigeschnittenen, noch an der Platine zusammenhängenden Kontaktträgerelemente eine leichte Handhabung im Fertigungsablauf und eine genaue Positionierung im Grundkörper ermöglichen. Bei dem bekannten Relaisaufbau sind die kontaktgebenden Abschnitte der Kontaktträger zusammen mit einem Anker unterhalb einer Spulenwicklung mit einem torförmigen Eisenkern angeordnet, wobei die Betätigungsrichtung quer zur Längsachse des Relaisaufbaus erfolgt. Durch die Verschachtelung von Anker und Kontaktfedern ist die Isolierung zwischen Magnetsystem und Lastkreis allerdings problematisch. Hohe Ströme können mit diesem System aufgrund der zu geringen Isolierstrecken nicht geschaltet werden. Außerdem ist bei diesem Aufbau ein Umschaltkontakt nur schwer zu verwirklichen; zumindest würde ein solcher Umschaltkontakt bei der genannten Betätigungsrichtung auf Kosten des schmalen Aufbaus gehen.Relays with such a narrow structure are for example known from DE 38 29 035 C2 (closest prior art) and DE 38 35 105 C2. By anchoring the contact carrier in one Row and by the location of the connecting lugs in a single Sheet level results in an advantageous production because the partially cut free, still connected on the board Contact carrier elements easy handling in Manufacturing process and precise positioning in the base body enable. In the known relay structure, the contacts Sections of the contact carrier together with one Anchor below a coil winding with a gate-shaped Iron core arranged, the operating direction transverse to Longitudinal axis of the relay structure takes place. By nesting of armature and contact springs is the insulation between Magnet system and load circuit, however, problematic. Height Currents can with this system due to the insufficient insulation distances not be switched. Besides, this one Setting up a changeover contact is difficult to implement; at least would such a changeover contact in the above Actuate direction of operation at the expense of the narrow structure.

Aus der DE 34 14 731 A1 ist auch bereits ein Grundaufbau eines Relais bekannt, bei dem ein Magnetsystem und eine Kontaktanordnung in Längsrichtung des Relais hintereinander angeordnet sind, wobei die Betätigung der Kontaktanordnung über einen parallel zur Längsachse des Relais bewegbaren Schieber erfolgt. Allerdings ist dort kein schmaler Aufbau beabsichtigt, da zwei Kontaktsätze quer zur Längsachse des Relais nebeneinander angeordnet sind. Die Kontaktträger sind zwar in dem Grundkörper des Relais eingebettet, doch liegen die flachen Anschlußfahnen jeweils in Ebenen quer zur Längsachse des Relais, so daß eine Verarbeitung aus einer Platine dort wieder angestrebt ist noch überhaupt durchführbar wäre.From DE 34 14 731 A1 is already a basic structure of a Relay known in which a magnet system and a contact arrangement arranged one behind the other in the longitudinal direction of the relay are, the actuation of the contact arrangement via a slide movable parallel to the longitudinal axis of the relay he follows. However, no narrow structure is intended there, because two sets of contacts across the longitudinal axis of the relay are arranged side by side. The contact carriers are in embedded in the main body of the relay, but the flat connecting lugs in planes transverse to the longitudinal axis of the relay, so processing from a board there again is still feasible.

Ziel der vorliegenden Erfindung ist es, ein schmales elektromagnetisches Relais der eingangs genannten Art zu schaffen und ein Verfahren zu dessen Herstellung anzugeben, das bei beliebiger Kontaktbestückung als Schließer, Öffner und insbesondere als Umschaltkontakt immer den gleichen schmalen Aufbau ermöglicht, zugleich große Isolationsstrecken gegenüber dem Magnetsystem zuläßt und eine besonders einfache Herstellung durch Anordnung der Anschlußfahnen in einer einzigen Blechebene ermöglicht; die Anschlußfahnen sollen dabei zumindest teilweise an einer Platine hängend in den Grundkörper eingebettet werden können.The aim of the present invention is to make a narrow electromagnetic To create relays of the type mentioned and to provide a process for its manufacture, which at any contact configuration as make, break and always the same narrow, especially as a changeover contact Construction enables, at the same time, large insulation distances compared to the magnet system and a particularly simple Manufactured by arranging the connection lugs in one allows single sheet level; the connecting lugs should hanging at least partially on a circuit board in the Base body can be embedded.

Erfindungsgemäß wird dieses Ziel bei einem Relais der genannten Art dadurch erreicht, daß alle Kontaktelemente jeweils mit ihrem Mittelabschnitt im Bereich der Verankerung im Grundkörper derart abgewinkelt sind, daß ihre kontaktgebenden Endabschnitte von ihrer Austrittsstelle aus dem Grundkörper an in einer einzigen Reihe, jedoch in zueinander parallelen, zur Grundebene und zur Ebene der Anschlußfahnen senkrechten Ebenen stehen, und daß jede Kontaktfeder in Richtung der Längsachse des Relais betätigt wird.According to the invention, this goal is achieved with a relay of the named Art achieved in that all contact elements each with its central section in the area of anchoring in Base bodies are angled so that their contact End sections from their exit point from the base body in a single row, but in parallel, perpendicular to the base plane and to the level of the connecting lugs Levels stand, and that each contact spring in the direction of Longitudinal axis of the relay is operated.

Bei dem erfindungsgemäßen Relais stehen also die kontaktgebenden Abschnitte der Kontaktträger quer zur Längsachse des Relais, wodurch eine Betätigung in Richtung dieser Längsachse möglich wird. Da die Kontaktträger in jedem Fall nur in einer Reihe angeordnet sind, ist ein schmaler Aufbau des Relais in jedem Fall gewährleistet, da die Breite durch das Ausmaß des Magnetsystems bestimmt wird und auch ein Umschaltkontakt die Breite nicht vergrößert. Es könnten sogar zwei Kontaktsätze in Längsrichtung des Relais hintereinander angeordnet und durch einen Längsschieber betätigt werden. Im Gegensatz zu den bekannten Relais mit einer derartigen Anordnung der Kontaktträger und einer derartigen Betätigungsrichtung erstrecken sich hier aber die Anschlußfahnen der Kontaktträger nicht parallel zu ihren kontaktgebenden Abschnitten; vielmehr steht die gemeinsame Ebene der Anschlußfahnen senkrecht zu den Ebenen der kontaktgebenden Abschnitte. Auf diese Weise wird nicht nur der Forderung nach einer Anschlußkonfiguration in einer Ebene (Inline-Konfiguration) Rechnung getragen, sondern es wird auch die Verarbeitung der Kontaktträger aus einer Platine im Herstellungsablauf ermöglicht. Der Übergang von der Anschlußebene der Kontaktträger zu den jeweiligen Ebenen der kontaktgebenden Endabschnitte erfolgt in dem Verankerungsbereich innerhalb des Grundkörpers. Die aus dem Grundkörper herausragenden Teile sind also in ihrer jeweiligen Ebene ausgerichtet und nicht mehr gebogen; dadurch können sie durch die Verankerung im Grundkörper sehr genau in ihre Endposition gebracht und in dieser fixiert werden.In the relay according to the invention there are the contacts Sections of the contact carrier transverse to the longitudinal axis of the Relay, causing an actuation in the direction of this longitudinal axis becomes possible. Since the contact carrier in each case only in one Arranged in series is a narrow structure of the relay in guaranteed in any case, since the width depends on the extent of the Magnet system is determined and also a changeover contact Width not enlarged. There could even be two sets of contacts arranged one behind the other in the longitudinal direction of the relay and be operated by a longitudinal slide. In contrast to the known relay with such an arrangement of the contact carrier and extend such an operating direction but here the connecting lugs of the contact carrier not parallel to their contacting sections; much more the common plane of the connecting lugs is perpendicular the levels of the contacting sections. In this way is not only the demand for a connection configuration taken into account in one level (inline configuration), but it will also process the contact carriers a board in the manufacturing process. The transition from the connection level of the contact carrier to the respective Levels of the contacting end sections take place in the Anchoring area within the base body. The one from the Basic body protruding parts are in their respective Level aligned and no longer curved; thereby by being anchored in the body very precisely in their End position brought and fixed in this.

Die Kontaktträger sind zweckmäßigerweise in ihrem im Grundkörper verankerten Mittelabschnitt jeweils mindestens um zwei zueinander senkrechte Biegeachsen abgewinkelt, wodurch der Übergang von der Ebene der Anschlußfahnen in die jeweilige Kontaktebene bewerkstelligt wird, zugleich aber eine sehr materialsparende Gewinnung der Kontaktträger aus der Platine ermöglicht wird. Durch die Abwinkelung in dem Bereich des Grundkörpers können die Anschlußfahnen einen gewünschten großen Isolationsabstand zueinander haben, während ihre kontaktgebenden Endabschnitte den notwendigen kurzen Kontaktabstand erhalten.The contact carriers are expediently in their main body anchored middle section at least by two perpendicular bending axes angled, whereby the Transition from the level of the connecting lugs to the respective one Contact level is accomplished, but at the same time a very material-saving Obtaining the contact carrier from the board is made possible. Due to the bend in the area of the Base body, the connecting lugs can be a desired have large isolation distances from each other while their contacting End sections the necessary short contact distance receive.

In einer vorteilhaften Ausführungsform ist vorgesehen, daß für einen Umschaltkontakt zwei Festkontaktträger in das Material des Grundkörpers eingebettet sind, während ein zwischen ihnen liegender Federträger mit einer an ihm befestigten Kontaktfeder in einem seitlich offenen Schlitz des Grundkörpers eingesteckt ist. Es wäre aber auch möglich, den Federträger zusammen mit den Festkontaktträgern aus der gemeinsamen Platine teilweise freizuschneiden, ihn dann mit der Kontaktfeder zu versehen und noch an der gemeinsamen Platine zusammenhängend mit den Festkontaktträgern gemeinsam in das Material des Grundkörpers einzubetten. Daneben wäre es aber auch denkbar, sowohl die Kontaktfeder als auch die Festkontaktträger aus dem gleichen Material einer gemeinsamen Platine zu gewinnen und gemeinsam in den Grundkörper einzubetten.In an advantageous embodiment it is provided that for a changeover contact two fixed contact carriers in the material of the main body are embedded, while a between spring carrier lying with a contact spring attached to it in a laterally open slot in the base body is plugged in. But it would also be possible to use the spring support together with the fixed contact carriers from the common circuit board partially cut free, then with the contact spring to be provided and still connected to the common circuit board together with the fixed contact carriers in the material of the Embed body. In addition, it would also be conceivable both the contact spring and the fixed contact carrier the same material of a common circuit board and embed it together in the basic body.

Besonders vorteilhaft ist die erfindungsgemäße Gestaltung der Kontaktanordnung bei einem Relais zu verwirklichen, bei dem der Grundkörper eine Trennwand zwischen dem Magnetsystem und der Kontaktanordnung sowie eine zur Bodenseite senkrechte Isolierwand an einer Längsseite des Grundkörpers aufweist; in diesem Fall ergibt sich eine besonders günstige Isolierung zwischen den Kontaktträgern und dem Magnetsystem dann, wenn die Ebene der Anschlußfahnen einseitig im Bereich unterhalb der Längs-Isolierwand verläuft.The design according to the invention is particularly advantageous Realize contact arrangement in a relay in which the main body is a partition between the magnet system and the contact arrangement and one perpendicular to the bottom side Has insulating wall on a long side of the base body; in In this case, insulation is particularly favorable between the contact carriers and the magnet system if the level of the connecting lugs on one side in the area below the longitudinal insulating wall runs.

Bei einem Verfahren zur Herstellung des erfindungsgemäßen Relais wird zunächst ein Grundkörper aus Kunststoff geformt, mit den Kontaktträgern versehen, wobei auf diesem Grundkörper dann ein Elektromagnetsystem montiert wird; erfindungsgemäß wird dabei aus einer Blechplatine zumindest ein Kontaktträger mit einer Anschlußfahne, einem Mittelabschnitt und einem kontaktgebendem Endabschnitt derart freigeschnitten, daß er mit seiner jeweiligen Anschlußfahne noch an der Platine hängt, danach wird der Mittelabschnitt eines jeden Kontaktträgers aus der Platinenebene derart herausgebogen, daß der kontaktgebende Endabschnitt in einer eigenen, zur Grundebene und zur Platinenebene senkrechten Ebene steht, und dann wird durch Einbetten der jeweiligen Mittelabschnitte in Kunststoff der Grundkörper geformt, wonach schließlich die Anschlußfahnen von der Blechplatine abgetrennt werden.In a method for producing the relay according to the invention first a base body is molded from plastic, provided with the contact carriers, on this base body then an electromagnetic system is installed; according to the invention becomes at least one contact carrier from a sheet metal plate with a connecting lug, a middle section and a contact Cut end section so that it with its respective connecting lug still hangs on the circuit board, after that the middle section of each contact carrier bent out of the board level in such a way that the contact End section in its own, to the basic level and to the Board plane vertical plane stands, and then through Embedding the respective middle sections in plastic Base body shaped, after which the connecting lugs finally be separated from the sheet metal.

Je nach dem gewünschten Aufbau der Kontaktanordnung ist es möglich, nur den oder die Festkontaktträger aus der Platine zu gewinnen und in den Grundkörper einzubetten, während ein Federträger mit der an ihm befestigten Kontaktfeder nachträglich in einen Schlitz des Grundkörpers eingesteckt wird, oder auch den Federträger zusammen mit den Festkontaktträgern freizuschneiden und gemeinsam einzubetten.Depending on the desired structure of the contact arrangement, it is possible, only the or the fixed contact carrier from the board to gain and embed in the main body while a Subsequent spring carrier with the contact spring attached to it is inserted into a slot in the base body, or also the spring carrier together with the fixed contact carriers cut free and embed together.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel anhand der Zeichnung näher erläutert.The invention is described below using an exemplary embodiment explained in more detail with reference to the drawing.

Es zeigt

FIG 1
zwei aufeinanderfolgende Abschnitte einer Blechplatine im Fertigungsablauf mit einem Paar von Festkontaktträgern in zwei aufeinanderfolgenden Verarbeitungsstadien,
FIG 2
den Blechplatinenabschnitt von FIG 1 in perspektivischer Ansicht,
FIG 3
den Blechplatinenabschnitt von FIG 2 in einem weiteren Fertigungsstadium,
FIG 4
einen durch Umspritzen eines Blechplatinenabschnitts gewonnen Relais-Grundkörper mit einer zusätzlich einsteckbaren Kontaktfeder,
FIG 5
ein auf dem Grundkörper von FIG 4 fertig montiertes Relaissystem (ohne Gehäusekappe).
It shows
FIG. 1
two successive sections of a sheet metal blank in the production process with a pair of fixed contact carriers in two successive processing stages,
FIG 2
1 in perspective view,
FIG 3
2 in a further manufacturing stage,
FIG 4
a relay base body obtained by extrusion coating of a sheet metal section with an additionally insertable contact spring,
FIG 5
a fully assembled relay system on the base of FIG 4 (without housing cap).

In den FIG 1 bis 4 ist die Gewinnung eines Relaisgrundkörpers mit Kontaktanordnung durch Teilumspritzung einer Blechplatine in den verschiedenen Verfahrensschritten gezeigt. Dabei werden aus einer Platine 1 zwei Festkontaktträger 2 und 3 gewonnen und im Fertigungsdurchlauf nacheinander verarbeitet. So zeigen die FIG 1 und 2 diese Festkontaktträger in einem ersten Verfahrensstadium I und in einem zweiten Verfahrensstadium II.1 to 4 is the extraction of a relay body with contact arrangement by partial encapsulation of a sheet metal board shown in the various process steps. In doing so won from a board 1 two fixed contact carriers 2 and 3 and processed one after the other in the production run. So 1 and 2 show these fixed contact carriers in a first Process stage I and in a second process stage II.

In dem ersten Verfahrensstadium I sind die Festkontaktträger 2 und 3 jeweils von der Platine freigeschnitten. Sie besitzen jeweils eine Anschlußfahne 21 bzw. 31, einen Mittelabschnitt 22 bzw. 32 zur Einbettung in dem noch zu beschreibendem Grundkörper und einen kontaktgebenden Endabschnitt 23 bzw. 33, der bereits in diesem Stadium mit einem Festkontakt 24 bzw. 34 versehen wird. Durch Abbiegen des Mittelabschnitts 22 bzw. 32 um zueinander senkrechte Biegelinien 25, 26 und 27 bzw. 35 und 36 wird das Verfahrensstadium II erreicht, in welchem die beiden kontaktgebenden Endabschnitte 23 und 33 einander mit ihren Festkontakten 24 und 34 parallel gegenüber stehen.In the first stage of the process I are the fixed contact carriers 2 and 3 each cut free from the board. You own in each case a connecting lug 21 or 31, a central section 22 or 32 for embedding in the still to be described Base body and a contacting end section 23 or 33, already at this stage with a fixed contact 24 or 34 is provided. By bending the middle section 22 and 32 about mutually perpendicular bending lines 25, 26 and 27 or 35 and 36 the process stage II is reached, in which the two contacting end sections 23 and 33 opposite each other with their fixed contacts 24 and 34 in parallel stand.

FIG 3 zeigten den weiteren Verfahrensablauf. Dabei ist zunächst noch einmal das Stadium II wie in FIG 2 zu sehen, an welches sich das Stadium III anschließt. In diesem Stadium ist durch Umspritzen der Mittelabschnitte 22 und 32 ein Kunststoff-Grundkörper 4 des Relais gebildet, der einerseits über die Anschlußfahnen 21 und 31 (in FIG 4 zu sehen) mit der Platine 1 zusammenhängt, während andererseits die Endabschnitte 23 und 33 der Festkontaktträger aus dem Kunststoff des Grundkörpers herausragen. Die Abwinkelungen der Festkontaktträger sind also völlig in den Kunststoff eingebettet. Sichtbar sind lediglich die in der Ebene der Platine 1 liegenden Anschlußfahnen 21 und 31 einerseits und die in dazu senkrechten Ebenen liegenden kontaktgebenden Endabschnitte 23 und 33. Dadurch können die Festkontakte bzgl. des Grundkörpers sehr exakt positioniert werden. Eine nachträgliche Verformung der Kontaktträger ist nicht erforderlich. Außerdem werden durch diese weitgehende Einbettung große Isolierstrecken zum Magnetsystem des Relais erreicht, welches gemäß FIG 5 an dem den Festkontaktträgern gegenüberliegenden Ende des Grundkörpers angeordnet wird. Im Umspritzungsbereich der Festkontaktträger 2 und 3 bildet der Grundkörper 4 einen Kontaktblock 41, der mit Rippen und Nuten große Isolierstrecken zum Magnetsystem bildet. Zur Aufnahme des Magnetsystems bildet der Grundkörper 4 eine Bodenplatte 42, deren Unterseite eine Grundebene 11 definiert. Als Isolierung zwischen dem Magnetsystem und der Kontaktanordnung besitzt der Grundkörper senkrecht zur Bodenplatte stehend eine Isolierwand 43 sowie an einer Längsseite eine Längswand 44, die mit einer Deckenwand 45 eine Halbschale zur Aufnahme des einen Endes des noch zu beschreibenden Magnetsystems bildet.3 shows the further procedure. Here is first stage II again as seen in FIG which is followed by stage III. In this stadium is by overmolding the middle sections 22 and 32 Plastic base body 4 of the relay formed the one hand over the connecting lugs 21 and 31 (shown in FIG 4) with the Circuit board 1 is connected, while on the other hand the end sections 23 and 33 of the fixed contact carrier made of plastic protrude from the main body. The bends of the fixed contact carriers are completely embedded in the plastic. Only those lying in the plane of the circuit board 1 are visible Terminal lugs 21 and 31 on the one hand and those in addition vertical contact-making end sections 23 and 33. This allows the fixed contacts with respect to the base body be positioned very precisely. Subsequent deformation the contact carrier is not required. Furthermore this extensive embedding makes large insulation distances reached to the magnetic system of the relay, which according to 5 at the end opposite the fixed contact carriers of the base body is arranged. In the extrusion area of the Fixed contact carrier 2 and 3, the base body 4 forms a contact block 41, the large insulation distances with ribs and grooves to the magnet system. To accommodate the magnet system forms the base body 4 has a base plate 42, the underside of which defines a base level 11. As insulation between the magnet system and the contact arrangement has the base body standing perpendicular to the base plate an insulating wall 43 and on one long side a longitudinal wall 44 that with a ceiling wall 45 a half-shell for receiving one end of the still magnetic system to be described.

Wie in FIG 4 mit einer Ansicht des Grundkörpers von einer entgegengesetzten Seite zu sehen ist, ist in diesem Fall zwischen den beiden Festkontaktträgern 2 und 3 ein Aufnahmeschlitz 5 zur Steckbefestigung einer Kontaktfeder 6 vorgesehen. Die Kontaktfeder selbst ist auf einem Federträger 62 mit einer Anschlußfahne 61 befestigt, beispielsweise durch Punktschweißen. Der Federträger 62 ist gegenüber seiner Anschlußfahne 61 um eine Biegeachse 65 abgewinkelt; außerdem ist die Kontaktfeder 6 um eine dazu senkrechte Biegeachse 66 nach oben abgewinkelt. Somit liegt auch bei der Kontaktfederanordnung der einen Kontakt 64 tragende Federabschnitt 63 in einer Ebene senkrecht zur Ebene der Anschlußfahne 61. Nach dem Abtrennen der Anschlußfahnen 21 und 31 an den gestrichelten Linien 28 und 38 und nach dem Einstecken der Kontaktfederanordnung 6 in den Schlitz 5 liegt die Anschlußfahne 61 in einer Ebene mit den Anschlußfahnen 21 und 31, während der kontaktgebende Abschnitt 63 der Kontaktfeder 6 parallel zwischen den beiden kontaktgebenden Endabschnitten 23 und 33 der Festkontaktträger liegt. As in FIG 4 with a view of the base body from a opposite side can be seen in this case is between the two fixed contact carriers 2 and 3 a receiving slot 5 provided for the plug-in fastening of a contact spring 6. The contact spring itself is on a spring support 62 attached to a terminal lug 61, for example by spot welding. The spring support 62 is opposite its connecting lug 61 angled about a bending axis 65; besides that is Contact spring 6 around a bending axis 66 perpendicular thereto angled above. This also applies to the contact spring arrangement the spring section 63 carrying a contact 64 in one Level perpendicular to the level of the terminal lug 61. After disconnection the connecting lugs 21 and 31 on the dashed lines 28 and 38 and after inserting the contact spring assembly 6 in the slot 5 is the terminal lug 61 in one Level with the connecting lugs 21 and 31, while the contact Section 63 of the contact spring 6 parallel between the two contacting end sections 23 and 33 of the fixed contact carrier lies.

Wie bereits vorher erwähnt wurde, wäre es auch möglich, den Federträger 62 mit den Festkontaktträgern 2 und 3 aus der Platine 1 freizuschneiden, wobei die Auflösung der einzelnen Abschnitte etwas anders als gemäß FIG 1 erfolgen müßte. Die Kontaktfeder 6 könnte dann auf den freigeschnittenen Federträger 62 aufgebracht und zusammen mit diesem und den Festkontaktträgern bei der Bildung des Grundkörpers umspritzt werden. Wenn ein und dasselbe Federblechmaterial sowohl für die Kontaktfeder als auch für die Festkontaktträger verwendet werden kann , könnten alle diese Teile gemeinsam freigeschnitten und umspritzt werden.As mentioned earlier, it would also be possible to use the Spring carrier 62 with the fixed contact carriers 2 and 3 from the Cut board 1 free, taking the resolution of each Sections should be done a little differently than in FIG. 1. The Contact spring 6 could then on the cut-out spring support 62 applied and together with this and the fixed contact carriers encapsulated during the formation of the base body become. If one and the same spring plate material for both used the contact spring as well as for the fixed contact carrier all these parts could be cut free together and overmolded.

In FIG 5 ist das fertig montierte Relais gezeigt. Dabei ist in den Grundkörper gemäß FIG 4 nach dem Einstecken der Kontaktfeder 6 ein Magnetsystem 7 mit einer Spule 71, einer Kern-Jochanordnung 72 und einem Anker 73 auf die Bodenplatte 42 aufgesetzt und von einer Längsseite her in die durch die Wände 43, 44 und 45 gebildete Halbschale eingeschoben. Da die Wand 44 das Magnetsystem nach einer Seite zum Kontaktsystem hin abdeckt, liegen die Anschlußfahnen 21, 31 und 61 im wesentlichen unterhalb dieser Längswand 44. auf diese Weise sind die Kriechstrecken von den Anschlußfahnen zur offenen Seite der Halbschale und damit zum Magnetsystem zusätzlich verlängert.5 shows the fully assembled relay. It is 4 after inserting the contact spring 6 a magnet system 7 with a coil 71, one Core yoke assembly 72 and an anchor 73 on the bottom plate 42 placed and from one long side into the through the Walls 43, 44 and 45 formed half-shell inserted. Since the Wall 44 the magnet system to one side to the contact system covers out, the terminal lugs 21, 31 and 61 are substantially below this longitudinal wall 44th in this way are the creepage distances from the connecting lugs to the open ones Side of the half-shell and thus in addition to the magnet system extended.

Ein Schieber 8 überträgt die Schaltbewegung des Ankers 73 auf den Endabschnitt 67 der Kontaktfeder 6, wodurch der halbkreisförmig freigeschnittene kontaktgebende Abschnitt 63 der Feder betätigt wird.A slide 8 transmits the switching movement of the armature 73 the end portion 67 of the contact spring 6, which makes the semicircular cut-out contacting section 63 of the Spring is actuated.

Claims (10)

  1. Electromagnetic relay having a slimline, elongated base body (4) composed of insulating material, whose bottom surface defines a base plane (11) and on whose top surface an electromagnetic system (7) and a contact arrangement (2, 3, 6) are fitted, the contact arrangement comprising contact supports in the form of at least one fixed contact support (2, 3) and at least one moving contact spring (6), which may be connected to a spring support (62) and whose flat connecting tabs (21, 31, 61) all project in a common sheet-metal plane parallel to the longitudinal axis of the base body (4) and at right angles to the base plane (11), which contact supports are anchored by a centre section (22, 32, 62) in the base body (4) and have contact-making end sections (23, 33, 63) which are opposite one another, by virtue of bends, with a predetermined contact separation, at least the fixed contact supports (2, 3) being embedded in the material of the base body (4),
    characterized in that all the contact elements (2, 3, 6) are each bent in their centre section (22, 32, 62) in the region where they are anchored in the base body (4), in such a manner that their contact-making end sections (23, 33, 63) project, from the point at which they emerge from the base body, in a single row but in mutually parallel planes which are at right angles to the base plane (11) and to the plane of the connecting tabs (21, 31, 61), and in that each contact spring (6) is operated in the direction of the longitudinal axis of the relay.
  2. Relay according to Claim 1,
    characterized in that the centre sections (22, 32, 62) of the contact supports (2, 3, 6) are each bent about at least two mutually perpendicular bending axes (25, 26, 27, 35, 36, 65, 66).
  3. Relay according to Claim 1 or 2,
    characterized in that two fixed contact supports (2, 3) are embedded in the material of the base body (4), and in that a spring support (62), which is located between said fixed contact supports (2, 3), is inserted by means of a contact spring (6) that is attached to it into a slot (5) which is open at the side in the base body.
  4. Relay according to Claim 1 or 2,
    characterized in that all the contact supports are embedded in the material of the base body (4).
  5. Relay according to one of Claims 1 to 4,
    characterized in that the base body (4) has a separating wall (43) between the magnet system (7) and the contact arrangement (2, 3, 6) as well as an insulating wall (44) which is at right angles to the bottom face, on one longitudinal side of the base body, and in that the plane of the connecting tabs (21, 31, 61) on one side runs in the region underneath the longitudinal insulating wall (44).
  6. Method for producing a relay according to one of Claims 1 to 5, a base body (4) being formed from insulating material and being provided with contact supports (2, 3, 6), and an electromagnetic system (7) then being mounted on the base body,
    characterized
    in that at least one contact support (2, 3) having a connecting tab (21, 31), a centre section (22, 32) and a contact-making end section (23, 33) is cut free from a metal sheet (1), in such a way that its respective connecting tab (21, 31) is still attached to the sheet (1),
    in that the centre section (22, 32) of each contact support (2, 3) is bent out of the plane of the sheet in such a manner that the contact-making end section (23, 33) lies in its own plane, at right angles to the base plane and to the sheet plane,
    in that the base body (4) is then formed by embedding the respective centre sections (22, 32) in plastic, and
    in that, finally, the connecting tabs (21, 31) are cut off the metal sheet (1).
  7. Method according to Claim 6,
    characterized in that two fixed contact supports (2, 3) are cut out of a common sheet (1), are embedded with their connecting tabs (21, 31) joined together in the plane of the sheet, one behind the other in the base material of the base body (4),
    in that one contact spring support (62) is connected to a contact spring (6) and is inserted into a slot (5) in the base body (4) between the two fixed contact supports (2, 3), in such a manner that its connecting tab (61) lies in the plane of the other connecting tabs (21, 31), and the contact-making section (63) of the contact spring (6) lies parallel to the contact-making end sections (23, 33) of the fixed contact supports.
  8. Method according to Claim 6,
    characterized in that a spring support is cut out of the metal sheet alongside one or two fixed contact supports, in that the spring support is provided with a contact spring and is bent in the central region in the same way as the fixed contact supports, and in that the spring support is embedded together with the fixed contact supports in the plastic of the base body.
  9. Method according to Claim 6,
    characterized in that all the contact supports, including the contact spring, are cut out of the material of the metal sheet, are bent, and are embedded in the plastic of the base body.
  10. Method according to one of Claims 6 to 9,
    characterized in that each contact support (2, 3, 6) is bent in its central section (22, 32, 62) about at least two mutually perpendicular bending axes (25, 26, 27; 35, 36; 65, 66).
EP97906083A 1996-01-25 1997-01-09 Electromagnetic relay of narrow construction and method of producing the same Expired - Lifetime EP0876674B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19602643A DE19602643A1 (en) 1996-01-25 1996-01-25 Electromagnetic relay in a narrow design and process for its manufacture
DE19602643 1996-01-25
PCT/DE1997/000030 WO1997027604A1 (en) 1996-01-25 1997-01-09 Electromagnetic relay of narrow construction and method of producing the same

Publications (2)

Publication Number Publication Date
EP0876674A1 EP0876674A1 (en) 1998-11-11
EP0876674B1 true EP0876674B1 (en) 1999-06-23

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EP97906083A Expired - Lifetime EP0876674B1 (en) 1996-01-25 1997-01-09 Electromagnetic relay of narrow construction and method of producing the same

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US (1) US6111487A (en)
EP (1) EP0876674B1 (en)
AT (1) ATE181617T1 (en)
BR (1) BR9707201A (en)
DE (2) DE19602643A1 (en)
WO (1) WO1997027604A1 (en)

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DE10209810B4 (en) * 2001-03-09 2006-11-16 Omron Corporation relay
GB0110948D0 (en) * 2001-05-04 2001-06-27 Tyco Electronics Amp Gmbh Bus controlled relays
DE102006036613B3 (en) * 2006-08-04 2008-04-10 Tyco Electronics Austria Gmbh Relay with a contact arrangement of contact springs
JP4952324B2 (en) * 2007-03-22 2012-06-13 オムロン株式会社 Electromagnetic relay
JP4946559B2 (en) * 2007-03-22 2012-06-06 オムロン株式会社 Electromagnetic relay
TW201029037A (en) * 2009-01-21 2010-08-01 Good Sky Electric Co Ltd Electromagnetic relay and assembling method of its electromagnet unit
JP2012028253A (en) * 2010-07-27 2012-02-09 Fuji Electric Fa Components & Systems Co Ltd Contact mechanism and electromagnetic contactor using the same
CN102856121B (en) * 2011-06-27 2015-08-26 厦门宏发开关设备有限公司 A kind of contactor adopting plastics fastener to fix fixed contact
JP2014165152A (en) * 2013-02-27 2014-09-08 Fujitsu Component Ltd Electromagnetic relay
DE102013212607B4 (en) * 2013-06-28 2024-02-01 Te Connectivity Austria Gmbh Switch contact assembly and method for producing same
JP2015035403A (en) * 2013-08-09 2015-02-19 オムロン株式会社 Contact point mechanism and electromagnetic relay using the same
CH713442B1 (en) * 2017-02-08 2021-03-31 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Relay.
JP7253906B2 (en) * 2018-11-30 2023-04-07 富士通コンポーネント株式会社 Electromagnetic relay terminals and electromagnetic relays

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US4758809A (en) * 1987-09-17 1988-07-19 Potter And Brumfield Inc. Electromagnetic relay having a multifunction retaining spring
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AT404768B (en) * 1993-07-02 1999-02-25 Schrack Components Ag RELAY
DE29507780U1 (en) * 1995-05-11 1995-08-17 Kozovski, Dimiter, Dr.-Ing., 58511 Lüdenscheid Electromagnetic relay

Also Published As

Publication number Publication date
US6111487A (en) 2000-08-29
WO1997027604A1 (en) 1997-07-31
JP2000506666A (en) 2000-05-30
DE59700232D1 (en) 1999-07-29
JP3788518B2 (en) 2006-06-21
EP0876674A1 (en) 1998-11-11
ATE181617T1 (en) 1999-07-15
BR9707201A (en) 1999-04-06
DE19602643A1 (en) 1997-07-31

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