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EP0777248A2 - Electromagnetic relay and method to adjust the electromagnetic relay - Google Patents

Electromagnetic relay and method to adjust the electromagnetic relay Download PDF

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Publication number
EP0777248A2
EP0777248A2 EP96118334A EP96118334A EP0777248A2 EP 0777248 A2 EP0777248 A2 EP 0777248A2 EP 96118334 A EP96118334 A EP 96118334A EP 96118334 A EP96118334 A EP 96118334A EP 0777248 A2 EP0777248 A2 EP 0777248A2
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EP
European Patent Office
Prior art keywords
spring
electromagnetic relay
load current
spring fixing
connection terminal
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.)
Granted
Application number
EP96118334A
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German (de)
French (fr)
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EP0777248B1 (en
EP0777248A3 (en
Inventor
Wolfgang Hoffmann
André Dr. Körner
Maik Zimmer
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Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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Publication of EP0777248A2 publication Critical patent/EP0777248A2/en
Publication of EP0777248A3 publication Critical patent/EP0777248A3/en
Application granted granted Critical
Publication of EP0777248B1 publication Critical patent/EP0777248B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0087Welding switch parts by use of a laser beam

Definitions

  • the invention relates to an electromagnetic relay according to the preamble of claim 1 and a method for adjusting the starting voltage of the electromagnetic relay.
  • Such a relay is known from DE 42 43 852 C2, a method for adjusting the starting voltage in such a relay being described in DE 42 43 854 C2.
  • the switch contact spring has a resilient connecting element which is displaced on a section of a connecting tongue by means of an adjusting plunger until the relay armature picks up when the intended tension is applied. Once this has taken place, the connecting element is fixed on the section of the connecting tongue by means of laser welding.
  • This method is very complex, since not only a costly laser system, but also a precisely working optical deflection device for controlling the laser beam is required and for controlling this deflection device the algorithmic connection between the irradiation point, the irradiation duration and the deformation achieved thereby are precisely known for the component to be adjusted got to.
  • This object is achieved in that the spring fixing area and the connection area of the load current connection terminal are designed to be flexible with respect to one another.
  • the bias can advantageously be achieved by simply bending the spring fixing area relative to the connection area of the load current connection terminal the flat form spring and thus the strength of the restoring spring force on the armature can be changed, whereby the pull-in voltage of the relay can be influenced in a simple manner.
  • connection area of the load current connection terminal can advantageously be designed as a flat plug.
  • emboss an embossing as a predetermined bending point in the load current connection terminal so that the bending takes place in a precisely defined direction.
  • a method for adjusting the tightening voltage is described in claim 5. It is particularly advantageous that this method is technically particularly simple, that the adjustment is carried out particularly quickly and that the adjustment can be carried out on the relay which has already been assembled.
  • Another advantage is that after the relay has been adjusted, it is guaranteed to pick up at the intended starting voltage. As a result, the range of the pull-in voltages of all relays of one type can be considerably restricted.
  • a type changeover of the production device with a suitably adjustable pull-in voltage can be achieved by simply changing the excitation voltages applied to the relay coils for adjustment.
  • the adjustment device itself can also be made quite simple.
  • the spring fixing area is bent relative to the connection area in a simple manner by means of a wedge-shaped adjusting punch or an adjusting punch which rotates.
  • FIG. 1 shows a relay according to the invention immediately before the tightening voltage is adjusted.
  • the relay consists of a base plate (1) on which a magnetic coil (2) is arranged. Around two sides of the magnetic coil (2) there is an approximately L-shaped yoke (3) which is riveted to the magnetic core (4).
  • a section of the armature (5) rests on an end face of the yoke (3).
  • the armature (5) is held by a flat spring (6) with which it is mechanically connected (riveted in this embodiment). Bent end sections (7) of the flat form spring (6) support the armature (5) against the yoke (3).
  • the flat form spring (6) also serves as a switch contact spring and as a return spring for the armature (5). It therefore carries two switch contacts (8a, 8b), one of which (8a) is in contact with the normally closed contact (9) and the other is opposite the normally open contact (10).
  • connection terminals connected to the contacts (8a, 8b, 9, 10) cannot be seen in FIG. 1, since they are designed as flat plugs which are passed through the side of the base plate (1) not shown in FIG. 1.
  • the bias of the return spring (also formed by the flat spring (6)) changes when the spring fixing area (11a) is shifted. This is done here by bending the spring fixing area (11a) by means of an adjusting plunger (12). If, for example, the spring fixing area (11a) is bent in the direction of the arrow (13), the restoring force of the flat form spring (6) on the armature (5) is reduced and the required minimum tightening tension shifts to lower values.
  • the actual adjustment process now proceeds as follows.
  • the relay is in mechanical abutment against a stop (14) and is also held by means of mechanical locking means (15).
  • the relay coil is (not shown in the figure) acted upon by the intended pull-in voltage and the connection terminals connected to the switch contact spring (flat form spring (6)) and the normally open contact (10) are connected to a current or resistance measuring device which detects the presence of the switch contact (8b ) registered at the make contact (10) and thus the successful tightening of the relay.
  • the wedge-shaped adjusting ram (12) now bends the spring fixing area (11a) until the relay picks up due to the decreasing preload of the flat form spring (6).
  • This adjustment process can be carried out fully automatically and very quickly, so that it is suitable for adjusting relays manufactured in very large numbers, since it does not increase the cycle times of relay production.
  • FIG. 2 illustrates the structure of the relay according to the invention on the basis of another view and shows further advantageous features.
  • the configuration of the load current connection terminal (11) is particularly clear here.
  • the flat form spring (6) is firmly connected to the load current connection terminal (11), specifically by means of a soldered or welded connection (16).
  • the load current connection terminal (11) forms a flat plug (17).
  • the spring fixing area (11a) and the connection area (11b) are separated from one another by a slot-shaped recess (18), which simplifies the bending of the spring fixing area (11a) by means of the adjusting stamp (12).
  • An embossing (19) serves as a predetermined bending point and ensures that the bending takes place in a defined manner. The formation of the slot as a closed slot ensures little springback when bending the load current connection terminal (11).
  • Electromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay are Electromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)

Abstract

The relay has an armature (5) connected to a flat spring (6), which forms a switch contact spring and a restoring spring in one piece, and is mechanically and electrically connected to a load current connector (11) with a spring fixing region (11a) and a connection region (11b). The spring fixing region and the connecting region are flexible wrt. each other. The connecting region forms a flat plug part. The spring fixing region has a stamped section (19). The load current connector has a slot-shaped aperture (18) between the spring fixing and connecting regions.

Description

Die Erfindung betrifft ein elektromagnetisches Relais nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Justierung der Anzugsspannung des elektromagnetischen Relais.The invention relates to an electromagnetic relay according to the preamble of claim 1 and a method for adjusting the starting voltage of the electromagnetic relay.

Ein solches Relais ist aus der DE 42 43 852 C2 bekannt, wobei ein Verfahren zur Justierung der Anzugsspannung bei einem solchen Relais in der DE 42 43 854 C2 beschrieben wird.Such a relay is known from DE 42 43 852 C2, a method for adjusting the starting voltage in such a relay being described in DE 42 43 854 C2.

Bei diesem Relais weist die Schaltkontaktfeder ein federndes Verbindungselement auf, welches mittels eines Justierstempels auf einem Abschnitt einer Anschlußzunge verschoben wird, bis der Relaisanker bei angelegter vorgesehener Anzugsspannung anzieht. Ist dieses erfolgt, wird das Verbindungselement mittels Laserschweißens auf dem Abschnitt der Anschlußzunge festgesetzt.In this relay, the switch contact spring has a resilient connecting element which is displaced on a section of a connecting tongue by means of an adjusting plunger until the relay armature picks up when the intended tension is applied. Once this has taken place, the connecting element is fixed on the section of the connecting tongue by means of laser welding.

Hierbei erfolgt also ein Montage- und ein Justierschritt auf der gleichen Fertigungsstation, wodurch vorteilhafterweise eine kostenaufwendige Vorrichtung eingespart werden kann, wobei aber die Vorrichtung für diesen kombinierten Montage- und Justierschritt doch selbst vergleichsweise aufwendig ist.Here, therefore, an assembly and an adjustment step take place on the same production station, which advantageously saves an expensive device, but the device itself is comparatively complex for this combined assembly and adjustment step.

Unter bestimmten Umständen kann es aber auch günstiger sein, wenn der Montage- und der Justierschritt nacheinander ausgeführt wird, nämlich dann, wenn sehr hohe Stückzahlen von solchen Relais gefertigt werden sollen und dementsprechend die Fertigungstaktzeiten sehr kurz sein müssen.In certain circumstances, however, it may also be more advantageous if the assembly and adjustment steps are carried out in succession, namely when very large numbers of such relays are to be manufactured and the production cycle times accordingly have to be very short.

Es werden in diesem Fall zur Montage und Justage zwar zwei Vorrichtungen statt einer benötigt, wobei aber jede dieser Vorrichtungen für sich einfacher aufgebaut sein kann als eine bekannte kombinierte Vorrichtung. Die Taktzeiten sind aber bedeutend kürzer, da der relativ zeitaufwendige kombinierte Montage- und Justierschritt wegfällt und durch zwei sehr schnell aufeinanderfolgende Einzelschritte ersetzt wird.In this case, two devices are required instead of one for assembly and adjustment, but each of these devices can be of simpler construction than a known combined device. The cycle times are however significantly shorter, since the relatively time-consuming combined assembly and adjustment step is eliminated and is replaced by two very quickly successive individual steps.

Aus der DE 32 35 714 A1 ist bereits ein Verfahren bekannt, mit dem die Anzugsspannung eines bereits fertigmontierten Relais einjustiert werden kann. Hierzu wird vorgeschlagen, Relaiskomponenten, die sich mittels lokaler Erwärmung definiert verformen lassen, also im wesentlichen die Kontaktfeder, mittels eines Laserstrahles zu deformieren.From DE 32 35 714 A1 a method is already known with which the pull-in voltage of an already assembled relay can be adjusted. For this purpose, it is proposed to deform relay components which can be deformed in a defined manner by means of local heating, that is to say essentially the contact spring, by means of a laser beam.

Dieses Verfahren ist sehr aufwendig, da nicht nur eine kostenaufwendige Laseranlage, sondern auch eine präzise arbeitende optische Ablenkvorrichtung zur Steuerung des Laserstrahles benötigt wird und zur Ansteuerung diese Ablenkvorrichtung der algorithmische Zusammenhang zwischen Bestrahlungspunkt, Bestrahlungsdauer und hierdurch erzielte Verformung für die zu justierende Komponente genau bekannt sein muß.This method is very complex, since not only a costly laser system, but also a precisely working optical deflection device for controlling the laser beam is required and for controlling this deflection device the algorithmic connection between the irradiation point, the irradiation duration and the deformation achieved thereby are precisely known for the component to be adjusted got to.

Zudem kommt es bei einer solchen Laserjustierung zu einem Materialabtrag gerade an den Stellen der Kontaktfeder, die später beim Betrieb des Relais stark belastet sind. Daher kann durch dieses Verfahren die Lebensdauer bzw. die Zuverlässigkeit eines so justierten Relais beeinträchtigt sein.In addition, with such a laser adjustment, material is removed precisely at the points of the contact spring that are later heavily loaded during the operation of the relay. This procedure can therefore affect the service life or the reliability of a relay that has been adjusted in this way.

Es ist daher die Aufgabe der Erfindung unter Vermeidung der genannten Nachteile ein Relais zu schaffen, das einfach und kostengünstig zu montieren ist und dessen Anzugsspannung im montierten Zustand ebenfalls auf einfache und kostengünstige Weise einjustiert werden kann.It is therefore the object of the invention, while avoiding the disadvantages mentioned, to provide a relay which is simple and inexpensive to assemble and whose tightening voltage can also be adjusted in a simple and inexpensive manner in the assembled state.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Federfixierbereich und der Anschlußbereich der Laststromanschlußklemme einander gegenüber biegsam ausgebildet sind.This object is achieved in that the spring fixing area and the connection area of the load current connection terminal are designed to be flexible with respect to one another.

Durch diese erfindungsgemäße Ausgestaltung eines elektromagnetischen Relais kann auf vorteilhafte Weise durch einfaches Biegen des Federfixierbereiches gegenüber dem Anschlußbereich der Laststromanschlußklemme die Vorspannung der Flachformfeder und damit die Stärke der rückstellenden Federkraft auf den Anker verändert werden, wodurch die Anzugsspannung des Relais auf einfache Weise beeinflußt werden kann.By means of this embodiment of an electromagnetic relay according to the invention, the bias can advantageously be achieved by simply bending the spring fixing area relative to the connection area of the load current connection terminal the flat form spring and thus the strength of the restoring spring force on the armature can be changed, whereby the pull-in voltage of the relay can be influenced in a simple manner.

In den Unteransprüchen sind hierzu weitere vorteilhafte Ausgestaltungen und Weiterbildungen dargestellt. So kann der Anschlußbereich der Laststromanschlußklemme vorteilhafterweise als Flachstecker ausgeführt sein.For this purpose, further advantageous refinements and developments are presented in the subclaims. Thus, the connection area of the load current connection terminal can advantageously be designed as a flat plug.

Besonders vorteilhaft ist es, zwischen dem Anschlußbereich und dem Federfixierbereich der Laststromanschlußklemme eine Ausnehmung in Form eines Schlitzes vorzusehen, wodurch diese Bereiche gut gegeneinander beweglich sind.It is particularly advantageous to provide a recess in the form of a slot between the connection area and the spring-fixing area of the load current connecting terminal, as a result of which these areas can be moved well with respect to one another.

Ebenfalls sehr vorteilhaft ist es, in die Laststromanschlußklemme eine Prägung als Sollbiegestelle einzubringen, damit die Biegung in eine genau definierte Richtung erfolgt.It is also very advantageous to emboss an embossing as a predetermined bending point in the load current connection terminal so that the bending takes place in a precisely defined direction.

Ein Verfahren zur Justierung der Anzugsspannung ist im Anspruch 5 beschrieben. Hierbei ist besonders vorteilhaft, daß dieses Verfahren technisch besonders einfach ist, daß die Justierung besonders schnell erfolgt und daß die Justierung am bereits fertig montierten Relais erfolgen kann.A method for adjusting the tightening voltage is described in claim 5. It is particularly advantageous that this method is technically particularly simple, that the adjustment is carried out particularly quickly and that the adjustment can be carried out on the relay which has already been assembled.

Ebenfalls von Vorteil ist, daß nach der Justierung des Relais dieses garantiert bei der vorgesehenen Anzugsspannung anzieht. Dadurch kann der Streubereich der Anzugsspannungen aller gefertigten Relais eines Typs erheblich eingeschränkt werden. Eine Typumstellung der Fertigungseinrichtung mit entsprechend umzustellender Anzugsspannung kann durch einfachen Wechsel der zum Justieren an den Relaisspulen angelegten Erregungsspannungen erreicht werden.Another advantage is that after the relay has been adjusted, it is guaranteed to pick up at the intended starting voltage. As a result, the range of the pull-in voltages of all relays of one type can be considerably restricted. A type changeover of the production device with a suitably adjustable pull-in voltage can be achieved by simply changing the excitation voltages applied to the relay coils for adjustment.

Auch die Justiereinrichtung selbst kann recht einfach ausgeführt sein. Das Biegen des Federfixierbereiches gegenüber dem Anschlußbereich erfolgt auf einfache Weise mittels eines keilförmigen Justierstempels oder eines Justierstempels, der eine Rotation ausführt.The adjustment device itself can also be made quite simple. The spring fixing area is bent relative to the connection area in a simple manner by means of a wedge-shaped adjusting punch or an adjusting punch which rotates.

Im folgenden soll ein Ausführungsbeispiel eines erfindungsgemäßen elektromagnetischen Relais und des hieran ausführbaren Verfahrens zur Justierung der Anzugsspannung anhand der Zeichnung dargestellt und näher erläutert werden.In the following, an embodiment of an electromagnetic relay according to the invention and the method for adjusting the pull-in voltage that can be carried out thereon will be illustrated and explained in more detail with reference to the drawing.

Es zeigen

Figur 1
eine Ansicht auf das erfindungsgemäße Relais vor der Justierung;
Figur 2
eine Seitenansicht des erfindungsgemäßen Relais.
Show it
Figure 1
a view of the relay according to the invention before adjustment;
Figure 2
a side view of the relay according to the invention.

Die Figur 1 zeigt ein erfindungsgemäßes Relais unmittelbar vor der Justierung der Anzugsspannung.FIG. 1 shows a relay according to the invention immediately before the tightening voltage is adjusted.

Das Relais besteht aus einer Grundplatte (1), auf der eine Magnetspule (2) angeordnet ist. Um zwei Seiten der Magnetspule (2) herum liegt ein in etwa L-förmig ausgebildetes Joch (3), welches mit dem Magnetkern (4) vernietet ist.The relay consists of a base plate (1) on which a magnetic coil (2) is arranged. Around two sides of the magnetic coil (2) there is an approximately L-shaped yoke (3) which is riveted to the magnetic core (4).

Auf einer Stirnseite des Joches (3) liegt ein Abschnitt des Ankers (5) auf. Der Anker (5) wird durch eine Flachformfeder (6) gehalten, mit welcher er mechanisch verbunden (in diesem Ausführungsbeispiel vernietet) ist. Abgebogene Endabschnitte (7) der Flachformfeder (6) stützen den Anker (5) gegen das Joch (3) ab.A section of the armature (5) rests on an end face of the yoke (3). The armature (5) is held by a flat spring (6) with which it is mechanically connected (riveted in this embodiment). Bent end sections (7) of the flat form spring (6) support the armature (5) against the yoke (3).

Die Flachformfeder (6) dient zudem als Schaltkontaktfeder sowie als Rückstellfeder für den Anker (5). Sie trägt daher zwei Schaltkontakte (8a, 8b), von dem der eine (8a) an dem Ruhekontakt (9) anliegt und der andere dem Arbeitskontakt (10) gegenübersteht.The flat form spring (6) also serves as a switch contact spring and as a return spring for the armature (5). It therefore carries two switch contacts (8a, 8b), one of which (8a) is in contact with the normally closed contact (9) and the other is opposite the normally open contact (10).

Die mit den Kontakten (8a, 8b, 9, 10) verbundenen Anschlußklemmen sind in der Figur 1 nicht erkennbar, da sie ausgeführt als Flachstecker durch die in der Figur 1 nicht dargestellte Seite der Grundplatte (1) hindurchgeführt sind.The connection terminals connected to the contacts (8a, 8b, 9, 10) cannot be seen in FIG. 1, since they are designed as flat plugs which are passed through the side of the base plate (1) not shown in FIG. 1.

Lediglich ein Teilbereich der Laststromanschlußklemme, welcher mit der Schaltkontaktfeder (ausgebildet durch die Flachformfeder (6)) elektrisch und mechanisch verbunden ist, ist erkennbar, weshalb dieser Teilbereich hier als Federfixierbereich (11a) bezeichnet ist. Die Laststromanschlußklemme wird später anhand der Figur 2 näher erläutert werden.Only a partial area of the load current connecting terminal, which is electrically and mechanically connected to the switch contact spring (formed by the flat-shaped spring (6)), can be seen, which is why this partial area is shown here as Spring fixing area (11a) is designated. The load current connection terminal will be explained in more detail later with reference to FIG. 2.

Wesentlich ist, daß sich bei dem erfindungsgemäß ausgebildeten Relais die Vorspannung der Rückstellfeder (ebenfalls ausgebildet durch die Flachformfeder (6)) ändert, wenn der Federfixierbereich (11a) verschoben wird. Dies geschieht hier durch Verbiegen des Federfixierbereichs (11a) mittels eines Justierstempels (12). Wird zum Beispiel der Federfixierbereich (11a) in Richtung des Pfeiles (13) gebogen, so verringert sich die Rückstellkraft der Flachformfeder (6) auf den Anker (5) und die erforderliche Mindestanzugsspannung verschiebt sich zu geringeren Werten hin.It is essential that in the relay designed according to the invention, the bias of the return spring (also formed by the flat spring (6)) changes when the spring fixing area (11a) is shifted. This is done here by bending the spring fixing area (11a) by means of an adjusting plunger (12). If, for example, the spring fixing area (11a) is bent in the direction of the arrow (13), the restoring force of the flat form spring (6) on the armature (5) is reduced and the required minimum tightening tension shifts to lower values.

Der eigentliche Justiervorgang läuft nun folgendermaßen ab. Das Relais liegt zur mechanischen Fixierung an einem Anschlag (14) an und wird zudem mittels mechanischer Arretierungsmittel (15) gehalten.The actual adjustment process now proceeds as follows. The relay is in mechanical abutment against a stop (14) and is also held by means of mechanical locking means (15).

Die Relaisspule wird (in der Figur nicht dargestellt) mit der vorgesehenen Anzugsspannung beaufschlagt und die mit der Schaltkontaktfeder (Flachformfeder (6)) und dem Arbeitskontakt (10) verbundenen Anschlußklemmen werden mit einer Strom- oder Widerstandsmeßeinrichtung verbunden, welche das Anliegen des Schaltkontaktes (8b) am Arbeitskontakt (10) und damit das erfolgte Anziehen des Relais registriert.The relay coil is (not shown in the figure) acted upon by the intended pull-in voltage and the connection terminals connected to the switch contact spring (flat form spring (6)) and the normally open contact (10) are connected to a current or resistance measuring device which detects the presence of the switch contact (8b ) registered at the make contact (10) and thus the successful tightening of the relay.

Durch den keilförmigen Justierstempel (12) wird nun der Federfixierbereich (11a) soweit gebogen, bis durch die geringer werdende Vorspannung der Flachformfeder (6) das Relais anzieht.The wedge-shaped adjusting ram (12) now bends the spring fixing area (11a) until the relay picks up due to the decreasing preload of the flat form spring (6).

Dieses Justierverfahren kann vollautomatisch und sehr schnell erfolgen, so daß es zur Justierung von in sehr hohen Stückzahlen gefertigten Relais geeignet ist, da es die Taktzeiten der Relaisproduktion nicht erhöht.This adjustment process can be carried out fully automatically and very quickly, so that it is suitable for adjusting relays manufactured in very large numbers, since it does not increase the cycle times of relay production.

Die Figur 2 verdeutlicht anhand einer anderen Ansicht den Aufbau des erfindungsgemäßen Relais und zeigt weitere vorteilhafte Merkmale.FIG. 2 illustrates the structure of the relay according to the invention on the basis of another view and shows further advantageous features.

Besonders deutlich wird hier die Ausgestaltung der Laststromanschlußklemme (11). Im oberen Bereich (Federfixierbereich (11a)) ist die Flachformfeder (6) fest mit der Laststromanschlußklemme (11), und zwar mittels einer Löt- oder Schweißverbindung (16) verbunden. Im unteren Bereich (Anschlußbereich (11b)) bildet die Laststromanschlußklemme (11) einen Flachstecker (17) aus.The configuration of the load current connection terminal (11) is particularly clear here. In the upper area (spring fixing area (11a)), the flat form spring (6) is firmly connected to the load current connection terminal (11), specifically by means of a soldered or welded connection (16). In the lower area (connection area (11b)) the load current connection terminal (11) forms a flat plug (17).

Der Federfixierbereich (11a) und der Anschlußbereich (11b) sind durch eine schlitzförmige Ausnehmung (18) voneinander getrennt, welche das Biegen des Federfixierbereichs (11a) durch den Justierstempel (12) vereinfacht. Eine Prägung (19) dient als Sollbiegestelle und sorgt dafür, daß die Abbiegung auf definierte Weise erfolgt. Die Ausbildung des Schlitzes als geschlossener Schlitz sorgt dabei für eine geringe Rückfederung beim Biegen der Laststromanschlußklemme (11).The spring fixing area (11a) and the connection area (11b) are separated from one another by a slot-shaped recess (18), which simplifies the bending of the spring fixing area (11a) by means of the adjusting stamp (12). An embossing (19) serves as a predetermined bending point and ensures that the bending takes place in a defined manner. The formation of the slot as a closed slot ensures little springback when bending the load current connection terminal (11).

BezugszeichenlisteReference list Elektromagnetisches Relais und Verfahren zur Justierung der Anzugsspannung des elektromagnetischen RelaisElectromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay

11
GrundplatteBase plate
22nd
MagnetspuleSolenoid
33rd
Jochyoke
44th
MagnetkernMagnetic core
55
Ankeranchor
66
FlachformfederFlat form spring
77
abgebogene Endabschnitte (der Flachformfeder (6))bent end sections (the flat spring (6))
8a, 8b8a, 8b
Schaltkontakte (an Flachformfeder (6))Switch contacts (on flat spring (6))
99
RuhekontaktBreak contact
1010th
ArbeitskontaktWork contact
1111
LaststromanschlußklemmeLoad current connection terminal
11a11a
Federfixierbereich (der Laststromanschlußklemme (11))Spring fixing area (of the load current connection terminal (11))
11b11b
Anschlußbereich (der Laststromanschlußklemme (11))Connection area (of the load current connection terminal (11))
1212th
JustierstempelAdjustment stamp
1313
Pfeil (zur Angabe der Biegerichtung des Federfixierbereiches (11a)Arrow (to indicate the bending direction of the spring fixing area (11a)
1414
Anschlagattack
1515
ArretierungsmittelLocking means
1616
Löt- oder SchweißverbindungSoldered or welded connection
1717th
FlachsteckerFlat connector
1818th
schlitzförmige Ausnehmungslit-shaped recess
1919th
PrägungEmbossing

Claims (7)

Elektromagnetisches Relais, welches als Klappankerrelais ausgebildet ist, bei dem der Anker (5) mit einer Flachformfeder (6), welche einstückig sowohl Schaltkontaktfeder als auch Rückstellfeder des Ankers (5) ausbildet, verbunden ist und die mechanisch und elektrisch mit einer Laststromanschlußklemme (11) verbunden ist, wobei die Laststromanschlußklemme (11) einen Federfixierbereich (11a) und einen Anschlußbereich (11b) aufweist, dadurch gekennzeichnet, daß der Federfixierbereich (11a) und der Anschlußbereich (11b) der Laststromanschlußklemme (11) einander gegenüber biegsam ausgebildet sind.Electromagnetic relay, which is designed as a hinged armature relay, in which the armature (5) is connected to a flat spring (6), which integrally forms both the switching contact spring and the return spring of the armature (5), and which is mechanically and electrically connected to a load current connection terminal (11). is connected, the load current connection terminal (11) having a spring fixing region (11a) and a connection region (11b), characterized in that the spring fixing region (11a) and the connection region (11b) of the load current connection terminal (11) are designed to be flexible with respect to one another. Elektromagnetisches Relais nach Anspruch 1, dadurch gekennzeichnet, daß der Anschlußbereich (11b) einen Flachstecker (17) ausbildet.Electromagnetic relay according to claim 1, characterized in that the connection area (11b) forms a flat plug (17). Elektromagnetisches Relais nach Anspruch 1, dadurch gekennzeichnet, daß der Federfixierbereich (11a) eine Prägung (19) aufweist.Electromagnetic relay according to claim 1, characterized in that the spring fixing area (11a) has an embossing (19). Elektromagnetisches Relais nach Anspruch 1, dadurch gekennzeichnet, daß die Laststromanschlußklemme (11) eine schlitzförmige Ausnehmung (18) zwischen dem Federfixierbereich (11a) und dem Anschlußbereich (11b) aufweist.Electromagnetic relay according to claim 1, characterized in that the load current connection terminal (11) has a slot-shaped recess (18) between the spring fixing area (11a) and the connection area (11b). Verfahren zur Justierung der Anzugsspannung bei einem elektromagnetischen Relais nach Anspruch 1, gekennzeichnet durch folgende Verfahrensschritte: 1.) Das elektromagnetische Relais wird in einer Justiervorrichtung fixiert. 2.) An die Anschlüsse der Magnetspule (2) wird die vorgesehene Anzugsspannung angelegt und die Anschlüsse des Arbeitskontaktes (10) und der beweglichen Schaltkontaktfeder werden mit einer Strom- oder Widerstandsmeßeinrichtung verbunden. 3.) Mittels eines Justierstempels (12) wird der Federfixierbereich (11a) der Laststromanschlußklemme soweit gegenüber dem Anschlußbereich (11b) gebogen, bis die Magnetspule (2) den Anker (5) anzieht und der bewegliche Schaltkontakt (8b) mit dem Arbeitskontakt (10) elektrisch verbunden ist. Method for adjusting the pull-in voltage in an electromagnetic relay according to claim 1, characterized by the following method steps: 1.) The electromagnetic relay is fixed in an adjustment device. 2.) The intended pull-in voltage is applied to the connections of the magnetic coil (2) and the connections of the normally open contact (10) and the movable switch contact spring are connected to a current or resistance measuring device. 3.) By means of an adjusting plunger (12) the spring fixing area (11a) of the load current connection terminal is so far opposite the connection area (11b) bent until the magnet coil (2) attracts the armature (5) and the movable switching contact (8b) is electrically connected to the working contact (10). Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Justierstempel (12) keilförmig ausgebildet ist.Method according to claim 5, characterized in that the adjusting stamp (12) is wedge-shaped. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Justierstempel eine Drehbewegung, deren Drehachse annähernd in Verlängerung der Prägung (19) liegt, ausführt.A method according to claim 5, characterized in that the adjusting stamp performs a rotary movement, the axis of rotation of which is approximately in the extension of the embossing (19).
EP96118334A 1995-11-30 1996-11-15 Electromagnetic relay and method to adjust the electromagnetic relay Expired - Lifetime EP0777248B1 (en)

Applications Claiming Priority (2)

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DE19544626 1995-11-30
DE19544626A DE19544626C2 (en) 1995-11-30 1995-11-30 Electromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay

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EP0777248A2 true EP0777248A2 (en) 1997-06-04
EP0777248A3 EP0777248A3 (en) 1998-09-23
EP0777248B1 EP0777248B1 (en) 2004-03-31

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CN100369176C (en) * 2005-01-20 2008-02-13 厦门宏发电声有限公司 Electromagnetic relay reset reed and its motion voltage correcting method
JP2010503475A (en) * 2006-09-12 2010-02-04 ザ ジェネラル ホスピタル コーポレイション Apparatus, probe, and method providing depth assessment in anatomical structures
CN102592889B (en) * 2012-03-07 2014-05-14 厦门宏发汽车电子有限公司 Electromagnetic relay suitable for automatic production and with reliable electroconductivity and assembling method thereof
CN104538250B (en) * 2015-02-03 2016-08-24 佛山市川东磁电股份有限公司 A kind of magnetic switch

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Also Published As

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US5864268A (en) 1999-01-26
DE19544626A1 (en) 1997-06-05
ES2217296T3 (en) 2004-11-01
EP0777248B1 (en) 2004-03-31
EP0777248A3 (en) 1998-09-23
DE19544626C2 (en) 2002-10-02
DE59610951D1 (en) 2004-05-06

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