EP2383765B1 - Relay with integrated safety circuit - Google Patents
Relay with integrated safety circuit Download PDFInfo
- Publication number
- EP2383765B1 EP2383765B1 EP11002955.0A EP11002955A EP2383765B1 EP 2383765 B1 EP2383765 B1 EP 2383765B1 EP 11002955 A EP11002955 A EP 11002955A EP 2383765 B1 EP2383765 B1 EP 2383765B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- relay
- coil
- control unit
- relay according
- circuit board
- 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.)
- Active
Links
- 230000004907 flux Effects 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 2
- 210000002105 tongue Anatomy 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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
- H01H50/02—Bases; Casings; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
Definitions
- spring-loaded contact pins can be provided for contacting the control unit.
- the spring-loaded contact pins offer a reliable electrical connection even if the relay vibrates as a result of a vehicle or a machine.
- the control unit 26 is short-circuit proof and has a protected coil control, reverse polarity protection and coil cancellation. In addition, an undervoltage protection is integrated in the control unit 26, which protects the relay from undefined operating states.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
- Electromagnets (AREA)
Description
Relais können in Form von monostabilen oder bistabilen Relais in den unterschiedlichsten Einsatzbereichen wie beispielsweise zur Steuerung von Nutzfahrzeugen, Schienenfahrzeugen, Baumaschinen oder Flurfördermaschinen eingesetzt werden. Die Relais mussten hierzu bislang extern, d. h. kundenseitig, mit einem genau definierten Spulensignal zur Steuerung des Relais beaufschlagt werden. Im Falle eines zu schwachen oder zu hohen Spulensignals kam es dabei oft zu Fehlschaltungen des Relais.Relays can be used in the form of monostable or bistable relays in a wide variety of applications, such as for controlling commercial vehicles, rail vehicles, construction machinery or industrial trucks. So far, the relays had to be external, i. H. provided by the customer with a precisely defined coil signal for controlling the relay. If the coil signal was too weak or too high, the relay would often malfunction.
Ein solches Relais ist beispielsweise in der
Die
In der
Die
Der Erfindung liegt demgegenüber die Aufgabe zugrunde, ein Relais bereitzustellen, das eine hohe Schaltsicherheit aufweist.In contrast, the invention is based on the object of providing a relay which has high switching reliability.
Diese Aufgabe wird erfindungsgemäß durch ein Relais mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved according to the invention by a relay with the features of claim 1.
Die nunmehr in das Relais integrierte Steuereinheit kann von außen an das Relais angelegte Spannungen auch, wenn diese der zur Schaltung des Relais erforderlichen Spannung nicht exakt entsprechen, als Steuersignal für das Relais interpretieren und einen genau definierten Spulenstrom an die Spule des Relais ausgeben. Feldausfälle durch mit Überstrom beaufschlagte Spulen können so vermieden werden. Darüber hinaus können mit dem erfindungsgemäßen Relais Ansteuerungskonzepte mit niedriger Leistung, beispielsweise Relaisansteuerungen durch Bordcomputer in Fahrzeugen, realisiert werden. Diese können in der Regel selbst keine entsprechend hohen Anzugs- oder Abwurfströme zur Schaltung des Relais zur Verfügung stellen.The control unit now integrated into the relay can interpret voltages applied to the relay from the outside as a control signal for the relay, even if they do not exactly correspond to the voltage required to switch the relay, and output a precisely defined coil current to the coil of the relay. Field failures caused by coils with overcurrent can thus be avoided. In addition, control concepts with low power, for example relay controls by on-board computers in vehicles, can be implemented with the relay according to the invention. As a rule, these themselves cannot provide correspondingly high pickup or discharge currents for switching the relay.
In einem bevorzugten Ausführungsbeispiel kann die Steuereinheit auf einer im Wesentlichen runden Platine ausgebildet sein. Da die Spulenanordnung in der Regel rund ausgebildet ist, kann die Platine mit der Steuereinheit Platz sparend zusammen mit der Spulenanordnung im Spulengehäuse angeordnet werden. Selbstverständlich kann die Form der Platine auch an andere geometrische Formen der Spulenanordnung, beispielsweise an eine rechteckige Spulenanordnung, angepasst sein.In a preferred exemplary embodiment, the control unit can be formed on an essentially round circuit board. Since the coil arrangement is generally round, the circuit board with the control unit can be arranged in a space-saving manner together with the coil arrangement in the coil housing. Of course, the shape of the circuit board can also be adapted to other geometric shapes of the coil arrangement, for example to a rectangular coil arrangement.
In einer besonders bevorzugten Ausführung der Erfindung kann die Platine der Steuereinheit im Wesentlichen den gleichen Durchmesser aufweisen wie die Spulenanordnung. Das Spulengehäuse des Relais kann auf diese Art und Weise kompakt ausgeführt werden.In a particularly preferred embodiment of the invention, the circuit board of the control unit can have essentially the same diameter as the coil arrangement. The coil housing of the relay can be made compact in this way.
Eine Spulenkontaktierung ist vorzugsweise durch die Platine hindurchgeführt. In diesem Fall ergibt sich der Vorteil, dass Steuerelektroden zur Steuerung des Relais in einem Kopfteil des Relais und gleichzeitig die Steuereinheit mit der Platine auf der Spulenanordnung angeordnet werden können.A coil contact is preferably passed through the board. In this case, there is the advantage that control electrodes for controlling the relay can be arranged in a head part of the relay and at the same time the control unit with the circuit board can be arranged on the coil arrangement.
In einer Weiterbildung der Erfindung können gefederte Kontaktstifte zur Kontaktierung der Steuereinheit vorgesehen sein. Die gefederten Kontaktstifte bieten auch bei durch ein Fahrzeug oder eine Maschine verursachten Schwingungen des Relais eine zuverlässige elektrische Verbindung.In a further development of the invention, spring-loaded contact pins can be provided for contacting the control unit. The spring-loaded contact pins offer a reliable electrical connection even if the relay vibrates as a result of a vehicle or a machine.
Das Relais ist vorzugsweise kurzschlusssicher ausgebildet. Das Relais und insbesondere die Steuereinheit des Relais werden damit auch im Falle eines Kurzschlusses nicht beschädigt.The relay is preferably short-circuit proof. The relay and in particular the control unit of the relay are not damaged in the event of a short circuit.
Weiterhin ist bevorzugt, dass das Relais einen Verpolschutz aufweist. Eine Beschädigung durch eine falsche Beschaltung des Relais kann hierdurch vermieden werden.It is further preferred that the relay has reverse polarity protection. Damage due to incorrect wiring of the relay can be avoided in this way.
Die Steuereinheit des Relais kann derart ausgebildet sein, dass eine Spulenlöschung durch die Steuereinheit vornehmbar ist. Durch die Spulenlöschung kann die Steuereinheit das Relais in einen definierten Schaltzustand versetzen.The control unit of the relay can be designed in such a way that coil deletion can be carried out by the control unit. The control unit can put the relay into a defined switching state by deleting the coil.
Das Relais weist einen Unterspannungsschutz auf. Der Unterspannungsschutz kann das Relais vor unbestimmten Betriebszuständen sichern und das Einschalten eines Verbrauchsstromkreises durch das Relais bei zu geringer Versorgungsspannung verhindern.The relay has undervoltage protection. The undervoltage protection can protect the relay against undefined operating states and prevent the relay from switching on a power circuit if the supply voltage is too low.
Durch die in das Relais integrierte Steuereinheit kann das Relais ein hohes Maß an elektronischer Sicherheit bieten sowie ein nahezu leistungsloses Schalten ermöglichen.Thanks to the control unit integrated in the relay, the relay can offer a high degree of electronic security and enable almost no-power switching.
In einer bevorzugten Ausführung der Erfindung ist das Relais als bistabiles Relais ausgeführt. In dem bistabilen Relais kann dabei mindestens ein Haltemittel, insbesondere ein Permanentmagnet, vorgesehen sein, mit dem der Anker in einer Position fixierbar ist. Das bistabile Relais kann dadurch auch nach Abschalten des Steuerstroms leistungslos in einer Ein- oder Aus-Position gehalten werden.In a preferred embodiment of the invention, the relay is designed as a bistable relay. At least one holding means, in particular a permanent magnet, can be provided in the bistable relay, with which the armature can be fixed in one position. The bistable relay can thus be held in an on or off position without power even after the control current has been switched off.
Weiter kann das Relais eine softwaregesteuerte Einschalt- und/oder Ausschaltverzögerung aufweisen, sofern dies vom Anwender gewünscht wird. Das Relais kann zudem mit einem Überspannungsschutz versehen werden.Furthermore, the relay can have a software-controlled switch-on and / or switch-off delay, if this is desired by the user. The relay can also be equipped with overvoltage protection.
Weitere Vorteile ergeben sich aus der Zeichnung, die ein erfindungsgemäßes Ausführungsbeispiel eines Relais mit integrierter Sicherheitsbeschaltung darstellt.Further advantages result from the drawing, which represents an embodiment of a relay according to the invention with an integrated safety circuit.
Es zeigen:
- Fig. 1
- eine perspektivische, teilweise geschnittene Darstellung eines erfindungsgemäßen Relais; und
- Fig. 2
- eine perspektivische Darstellung der Spuleneinheit und Steuereinheit aus
Fig. 1 .
- Fig. 1
- a perspective, partially sectioned illustration of a relay according to the invention; and
- Fig. 2
- a perspective view of the coil unit and control unit
Fig. 1 ,
Die Beschaltung der Steuereinheit 26 kann vorzugsweise auf drei Arten erfolgen:
In einer ersten Variante sind zwei gefederte Kontaktstifte 28.2, 28.3 mit einer Versorgungsspannung beaufschlagt. Das Relais 10 wird durch einen High-Pegel am gefederten Kontaktstift 28.1 eingeschaltet und durch einen Low-Pegel am gefederten Kontaktstift 28.1 wieder ausgeschaltet. Der Bereich des High- und Low-Pegels kann dabei innerhalb der Betriebsspannung des Relais frei definiert werden.The
In a first variant, two spring-loaded contact pins 28.2, 28.3 are supplied with a supply voltage. The
In einer zweiten Variante ist der gefederte Kontaktstift 28.1 elektrisch mit einer negativen Spannung beaufschlagt. Durch Anlegen einer positiven Spannung am gefederten Kontaktstift 28.2 wird das Relais ein- und durch Anlegen einer positiven Spannung am gefederten Kontaktstift 28.3 wieder ausgeschaltet.In a second variant, the spring-loaded contact pin 28.1 is electrically subjected to a negative voltage. The relay is switched on by applying a positive voltage to the spring-loaded contact pin 28.2 and switched off again by applying a positive voltage to the spring-loaded contact pin 28.3.
Schließlich wird in einer dritten Variante der gefederte Kontaktstift 28.3 kontinuierlich mit einer positiven Spannung beaufschlagt. Das Relais wird dann durch Anlegen einer negativen Spannung am gefederten Kontaktstift 28.1 ein- und durch Anlegen einer negativen Spannung am gefederten Kontaktstift 28.2 ausgeschaltet.Finally, in a third variant, the spring-loaded contact pin 28.3 is continuously subjected to a positive voltage. The relay is then switched on by applying a negative voltage to the spring-loaded contact pin 28.1 and switched off by applying a negative voltage to the spring-loaded contact pin 28.2.
Nachdem das Relais ein- oder ausgeschaltet wurde, reduziert die Steuereinheit 26 den Spulenstrom, sodass die Steuereinheit 26 ein nahezu leistungsloses Halten der jeweiligen Schaltposition des Relais 10 ermöglicht.After the relay has been switched on or off, the
Die Steuereinheit 26 ist kurzschlusssicher und weist eine geschützte Spulenansteuerung, einen Verpolschutz und eine Spulenlöschung auf. Darüber hinaus ist in die Steuereinheit 26 ein Unterspannungsschutz integriert, der das Relais vor unbestimmten Betriebszuständen sichert.The
Weiterhin kann die Steuereinheit 26 durch Ansteuergeräte mit niedriger Leistung, beispielsweise durch Bordcomputer in Fahrzeugen, angesteuert werden. Durch die Anordnung der Steuereinheit 26 im Spulengehäuse 14 wird eine kompakte Bauweise des Relais 10 ermöglicht, sodass das erfindungsgemäße Relais 10 ein herkömmliches Relais gleicher Bauart ersetzen kann. Darüber hinaus kann das Relais mit integrierter Steuereinheit dampfstrahldicht ausgeführt sein.Furthermore, the
Claims (9)
- A relay (10) comprising a coil housing (14) having a coil arrangement (22) and a movable armature (24) which, by a magnetic flux which is producible in the coil arrangement (22) by a coil current, permits or interrupts a flow of current via two main contact terminals (16), characterized in that in the coil housing (14) a control unit (26) is provided for controlling the coil current, which control unit (26) is directly arranged on the coil body and prevents a malfunction of the relay in case of relay voltages that are too weak or too high and applied from outside by the control unit outputting an exactly defined coil current to the coil of the relay.
- The relay according to claim 1, characterized in that the control unit (26) is designed on a substantially round circuit board.
- The relay according to claim 2, characterized in that the circuit board of the control unit (24) has substantially the same diameter as the coil arrangement (22).
- The relay according to one of the preceding claims, characterized in that a coil bond is passed through the circuit board.
- The relay according to one of the preceding claims, characterized in that cushioned contact pins (28.1, 28.2, 28.3) are provided for contacting the control unit.
- The relay according to one of the preceding claims, characterized in that the relay (10) is designed to be short-circuit-proof.
- The relay according to one of the preceding claims, characterized in that the relay (10) comprises a mispolarization protector.
- The relay according to one of the preceding claims, characterized in that a coil blowout can be performed by the control unit (26) of the relay (10).
- The relay according to one of the preceding claims, characterized in that the relay (10) comprises an undervoltage protector.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010018755A DE102010018755A1 (en) | 2010-04-29 | 2010-04-29 | Relay with integrated safety circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2383765A1 EP2383765A1 (en) | 2011-11-02 |
EP2383765B1 true EP2383765B1 (en) | 2020-01-15 |
Family
ID=44477671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11002955.0A Active EP2383765B1 (en) | 2010-04-29 | 2011-04-08 | Relay with integrated safety circuit |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110267158A1 (en) |
EP (1) | EP2383765B1 (en) |
CA (1) | CA2737696A1 (en) |
DE (1) | DE102010018755A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140133109A1 (en) * | 2012-10-19 | 2014-05-15 | Dynapar Corporation | Field replaceable auxiliary switch and control circuit assembly for an electrical contactor |
DE102014007457B3 (en) | 2014-05-21 | 2015-11-19 | Ellenberger & Poensgen Gmbh | Power relay for a vehicle |
DE102014007459A1 (en) | 2014-05-21 | 2015-11-26 | Ellenberger & Poensgen Gmbh | Power relay for a vehicle |
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DE1105062B (en) | 1957-09-02 | 1961-04-20 | Keller Spezialtechnik G M B H | Electronic relay |
DE1514099A1 (en) | 1965-11-20 | 1969-10-02 | Kieninger & Obergfell | Relays or miniature contactors for use on circuit boards, in particular printed circuits |
DE1965805A1 (en) | 1969-05-21 | 1970-12-03 | Landis & Gyr Ag | Thermal relay |
DE2405383A1 (en) | 1974-02-05 | 1975-08-07 | Bosch Gmbh Robert | Reed relay bobbin for automatic bifilar winding - has double thread wire guide grooves with displaced wire inputs-outputs |
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DE3306019C2 (en) | 1983-02-22 | 1984-12-13 | Stribel GmbH, 7443 Frickenhausen | Electromagnetic relay |
EP0269797A1 (en) | 1986-10-31 | 1988-06-08 | Sprecher + Schuh AG | Electronic motor protection relay |
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EP0789378A1 (en) | 1996-02-07 | 1997-08-13 | Asea Brown Boveri Ab | Contactor equipment |
DE19746370A1 (en) | 1996-11-07 | 1998-05-14 | Valeo Equip Electr Moteur | Motor vehicle IC engine starter engaging relay with integral electronic control circuit |
DE19738989A1 (en) | 1997-09-05 | 1999-03-18 | Siemens Ag | Smart-power-switch type electronic relay with short-circuit and overload protection |
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EP1353348A1 (en) | 2001-11-29 | 2003-10-15 | Matsushita Electric Works, Ltd. | Elecromagnetic switching apparatus |
US20050135040A1 (en) | 2003-12-11 | 2005-06-23 | Anden Co., Ltd. | Relay device having holding current stabilizing and limiting circuit |
DE10358858A1 (en) | 2003-12-16 | 2005-07-14 | Robert Bosch Gmbh | Method and device for operating an inductive load with different electrical voltages |
DE602005002015T2 (en) * | 2004-12-22 | 2008-05-15 | International Controls And Measurements Corp. | Relay with a conductive core and a current sensing |
US20080218928A1 (en) | 2007-03-05 | 2008-09-11 | Ls Industrial Systems Co., Ltd | Coil-driving apparatus of electronic magnetic contactor |
DE102007031995A1 (en) | 2007-07-09 | 2009-01-15 | Moeller Gmbh | Control device for a switching device with tightening and / or holding coil and method for controlling the current flowing through the coil |
EP2019454A2 (en) | 2007-07-27 | 2009-01-28 | Robert Bosch Gmbh | Pin-shaped contact elelement and connection |
DE102007046634B3 (en) | 2007-09-27 | 2009-05-28 | Moeller Gmbh | Power supply for a voltage or current-triggering switching device and their use in such a switching device and method for supplying power to such a switching device |
US20100033276A1 (en) | 2008-08-07 | 2010-02-11 | Denso Corporation | Electromagnetic switch equipped with built-in electronic control circuit |
Also Published As
Publication number | Publication date |
---|---|
US20110267158A1 (en) | 2011-11-03 |
DE102010018755A1 (en) | 2011-11-03 |
CA2737696A1 (en) | 2011-10-29 |
EP2383765A1 (en) | 2011-11-02 |
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