EP0940831A2 - Thermal-type overload relay. - Google Patents

Thermal-type overload relay. Download PDF

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Publication number
EP0940831A2
EP0940831A2 EP99100909A EP99100909A EP0940831A2 EP 0940831 A2 EP0940831 A2 EP 0940831A2 EP 99100909 A EP99100909 A EP 99100909A EP 99100909 A EP99100909 A EP 99100909A EP 0940831 A2 EP0940831 A2 EP 0940831A2
Authority
EP
European Patent Office
Prior art keywords
overload relay
housing
thermal
circuit board
adjustment
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.)
Withdrawn
Application number
EP99100909A
Other languages
German (de)
French (fr)
Other versions
EP0940831A3 (en
Inventor
Kai Dipl.-Ing. Garrels
Andreas Dipl.-Phys. Wilmers
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0940831A2 publication Critical patent/EP0940831A2/en
Publication of EP0940831A3 publication Critical patent/EP0940831A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements

Definitions

  • the invention relates to a thermal overload relay according to the preamble of the claim 1.
  • control wiring is in shape is realized by conductor tracks on the board.
  • overload relays known for protecting three-phase motors are also on the market Connection technology for cables in the form of screw terminals or screwless ones Cage clamp terminals are offered, which is why the overload relays are integrated in a controller mounted on a board, additional electrical connections assumes.
  • the object of the invention is to provide a thermal overload relay of the type mentioned To create a way in which the assembly technology is considerably simplified.
  • pins are arranged on one side of the housing, which protrude from the housing protrude and connected to the components located inside the housing are; with these pins the housing, and thus the one in the housing thermal overload relay soldered onto a circuit board.
  • the overload protection function can be implemented electronically; bimetal elements can also be used or elements of a shape memory alloy can be provided with which the overload protection function is implemented mechanically.
  • a load 10 which can be a motor, for example, is connected via power lines 11 Three-phase supply.
  • a motor contactor 12 for one and one Switch off and thus to control the motor, which is normal and usual Contactor is trained.
  • This contactor is controlled by a controller 13.
  • an overload relay 14 which, for example an electronic overload relay or a mechanical overload relay with May be bimetallic and that in the event of an overload within the network conductor, d. H.
  • the overload relay 14 can be reset by means of the controller 13 after a shutdown be by a line 16, either electronically or mechanically Signal for resetting the overload relay 14 is transmitted. Over a dashed Line of action 17, the overload relay 14 can also be reset manually, for example by means of a push button, and over the further dashed line of action 18 the status of the overload relay 14 can be reported to a center.
  • the line of action from the controller 13 to the motor contactor 12 is designated by the reference number 19. These lines of action 15, 16 and 19 can be electrical or mechanical signals transfer.
  • FIG. 2 shows the overload relay 14 as it can be designed according to the invention.
  • This overload relay 14 is located in a cuboid housing 20, the a page 21 is a user interface, the setting elements 22 and 23 in the form of Knobs or elements that can be rotated using tools, as well as imprints having.
  • solder pins 24 are arranged, which in corresponding Openings 25 inserted on a circuit board 26 and with on the circuit board 26 located conductor tracks 27 can be soldered.
  • the conductor tracks 27 are open indicated the side of the circuit board 26 which is facing the housing 20; indeed are the conductor tracks 27 on the opposite side, since they are there are easier to solder.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

The arrangement is arranged in a casing, and includes an adjustment arrangement for an adjustment from a user surface, whereby pins (24) extend from one side of the casing (2), which are connected with components arranged within the casing, and which can be soldered on a printed circuit board (26).

Description

Die Erfindung betrifft ein thermisches Überlastrelais gemäß dem Oberbegriff des Anspruches 1.The invention relates to a thermal overload relay according to the preamble of the claim 1.

In bestimmten Steuerungen, z. B. Pumpensteuerungen oder Garagentorsteuerungen mit Drehstrommotoren werden Schütze eingesetzt, die auf eine Platine aufgelötet sind. Der Vorteil der Anordnung besteht darin, daß die Verdrahtung der Steuerung in Form von Leiterbahnen auf der Platine realisiert ist.In certain controls, e.g. B. Pump controls or garage door controls with three-phase motors, contactors are used that are soldered onto a circuit board. The advantage of the arrangement is that the control wiring is in shape is realized by conductor tracks on the board.

Die zum Schutz von Drehstrommotoren bekannten Überlastrelais werden am Markt mit Anschlußtechnik für Kabel in Form von Schraubklemmen oder auch schraubenlosen Käfigzugfederklemmen angeboten, weswegen eine Integration der Überlastrelais in eine Steuerung, die auf einer Platine montiert ist, zusätzliche elektrische Verbindungen voraussetzt.The overload relays known for protecting three-phase motors are also on the market Connection technology for cables in the form of screw terminals or screwless ones Cage clamp terminals are offered, which is why the overload relays are integrated in a controller mounted on a board, additional electrical connections assumes.

Es besteht natürlich die Möglichkeit, ein elektronisches Überlastrelais aus diskreten Komponenten auf einer Leiterplatte aufzubauen; bei einer anderen Lösung kann eine Auswerteschaltung für einen im Motor angebrachten Temperaturfühler zum Motorschutz auf einer Leiterplatte angebracht sein. Bei diesen letztgenannten Lösungen jedoch sind die einzelnen Bauteile nicht in einem Gehäuse untergebracht, sondern direkt und unmittelbar auf der Leiterplatte. There is of course the possibility of an electronic overload relay made of discrete Build components on a circuit board; with another solution, one Evaluation circuit for a temperature sensor in the motor for motor protection be attached to a circuit board. With these latter solutions, however the individual components are not housed in one housing, but directly and directly on the circuit board.

Aufgabe der Erfindung ist es, ein thermisches Überlastrelais der eingangs genannten Art zu schaffen, bei dem die Montagetechnik erheblich vereinfacht ist.The object of the invention is to provide a thermal overload relay of the type mentioned To create a way in which the assembly technology is considerably simplified.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des einzigen Anspruches gelöst.This object is achieved by the characterizing features of the only one Claim solved.

Danach sind an einer Seite des Gehäuses Stifte angeordnet, die aus dem Gehäuse herausragen und die mit den innerhalb des Gehäuses befindlichen Komponenten verbunden sind; mit diesen Stiften wird das Gehäuse, und damit das in dem Gehäuse befindliche thermische Überlastrelais auf eine Platine aufgelötet.Then pins are arranged on one side of the housing, which protrude from the housing protrude and connected to the components located inside the housing are; with these pins the housing, and thus the one in the housing thermal overload relay soldered onto a circuit board.

Die Überlastschutzfunktion kann dabei elektronisch realisiert sein; es können auch Bimetallelemente oder Elemente einer Formgedächtnislegierung vorgesehen sein, mit denen die Überlastschutzfunktion mechanisch realisiert wird.The overload protection function can be implemented electronically; bimetal elements can also be used or elements of a shape memory alloy can be provided with which the overload protection function is implemented mechanically.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen den Erfindung näher erläutert und beschrieben werden.Using the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements the invention will be explained and described in more detail.

Es zeigen:

Fig. 1
ein Blockschaltbild, aus dem der Einsatz eines Überlastrelais hervorgeht, und
Fig. 2
eine perspektivische Ansicht eines Überlastrelais mit Lötstiften, das in der Anordnung nach Fig. 1 zum Einsatz kommt.
Show it:
Fig. 1
a block diagram showing the use of an overload relay, and
Fig. 2
a perspective view of an overload relay with solder pins, which is used in the arrangement of FIG. 1.

Eine Last 10, die beispielsweise ein Motor sein kann, wird über Netzleitungen 11 mit Drehstrom versorgt. In den Netzleitungen 11 befindet sich ein Motorschütz 12 zum Einund Ausschalten und damit zum Ansteuern des Motors, welches als normales und übliches Schütz ausgebildet ist. Dieses Schütz wird von einer Steuerung 13 angesteuert. In den Netzleitern 11 befindet sich weiterhin ein Überlastrelais 14, welches beispielsweise ein elektronisches Überlastrelais oder ein mechanisches Überlastrelais mit Thermobimetallen sein kann und das bei einer Überlast innerhalb der Netzleiter, d. h. bei einem Strom, der um einem Prozentsatz oberhalb des Nennstromes liegt, anspricht, indem die Elektronik des Überlastrelais 14 über eine Leitung 15 der Steuerung 13 ein Signal gibt, so daß die Steuerung 13 das Motorschütz 12 abschaltet, oder indem die Thermobimetalle eine Verklinkungsstelle enklinken, die ebenfalls über die Steuerung 13 das Ausschalten des Motorschützes 12 bewirkt. Die Arbeitsweise eines Überlastrelais zusammen mit einem Motorschütz ist an sich bekannt, so daß hier nicht näher darauf eingegangen werden muß.A load 10, which can be a motor, for example, is connected via power lines 11 Three-phase supply. In the power lines 11 there is a motor contactor 12 for one and one Switch off and thus to control the motor, which is normal and usual Contactor is trained. This contactor is controlled by a controller 13. In the line conductors 11 there is also an overload relay 14, which, for example an electronic overload relay or a mechanical overload relay with May be bimetallic and that in the event of an overload within the network conductor, d. H. responds to a current that is a percentage above the nominal current, by the electronics of the overload relay 14 via a line 15 of the controller 13 Signal gives so that the controller 13 turns off the motor contactor 12, or by the Enclose thermobimetals a latching point, which is also via the control 13 the motor contactor 12 is switched off. How an overload relay works together with a motor contactor is known per se, so that not here must be received.

Mittels der Steuerung 13 kann das Überlastrelais 14 nach einer Abschaltung zurückgesetzt werden, indem über eine Leitung 16, entweder elektronisch oder mechanisch, ein Signal zum Rücksetzen des Überlastrelais 14 übertragen wird. Über eine strichlierte Wirkungslinie 17 kann das Überlastrelais 14 auch manuell zurückgesetzt werden, beispielsweise mittels eines Druckknopfes, und über die weitere strichlierte Wirklinie 18 kann der Zustand des Überlastrelais 14 einer Zentrale gemeldet werden. Die Wirklinie von der Steuerung 13 zum Motorschütz 12 ist mit der Bezugsziffer 19 bezeichnet. Diese Wirklinien 15, 16 und 19 können elektrische oder auch mechanische Signale übertragen.The overload relay 14 can be reset by means of the controller 13 after a shutdown be by a line 16, either electronically or mechanically Signal for resetting the overload relay 14 is transmitted. Over a dashed Line of action 17, the overload relay 14 can also be reset manually, for example by means of a push button, and over the further dashed line of action 18 the status of the overload relay 14 can be reported to a center. The line of action from the controller 13 to the motor contactor 12 is designated by the reference number 19. These lines of action 15, 16 and 19 can be electrical or mechanical signals transfer.

Die Fig. 2 zeigt das Überlastrelais 14, wie es erfindungsgemäß ausgebildet sein kann. Dieses Überlastrelais 14 befindet sich in einem quaderförmigen Gehäuse 20, dessen eine Seite 21 eine Benutzeroberfläche ist, die Einstellelemente 22 und 23 in Form von Drehknöpfen oder von mittels Werkzeugen verdrehbaren Elementen sowie Aufdrucke aufweist. Auf der entgegengesetzten Seite sind Lötstifte 24 angeordnet, die in entsprechende Öffnungen 25 auf einer Leiterplatte 26 eingesteckt und mit auf der Leiterplatte 26 befindlichen Leiterbahnen 27 verlötet werden können. Die Leiterbahnen 27 sind auf der Seite der Leiterplatte 26 angedeutet, die dem Gehäuse 20 zugerichtet ist; tatsächlich befinden sich die Leiterbahnen 27 auf der entgegengesetzten Seite, da sie dort besser verlötbar sind.2 shows the overload relay 14 as it can be designed according to the invention. This overload relay 14 is located in a cuboid housing 20, the a page 21 is a user interface, the setting elements 22 and 23 in the form of Knobs or elements that can be rotated using tools, as well as imprints having. On the opposite side solder pins 24 are arranged, which in corresponding Openings 25 inserted on a circuit board 26 and with on the circuit board 26 located conductor tracks 27 can be soldered. The conductor tracks 27 are open indicated the side of the circuit board 26 which is facing the housing 20; indeed are the conductor tracks 27 on the opposite side, since they are there are easier to solder.

Claims (1)

In einem Gehäuse untergebrachtes thermisches Überlastrelais zum Schutz von Drehstrommotoren, mit Einstelleinrichtungen zur Justage und Einstellung an der Benutzeroberfläche, dadurch gekennzeichent, daß an einer Seite des Gehäuses (20) mit den innerhalb des Gehäuses (20) befindlichen Komponenten verbundene Stifte (24) herausragen, die auf eine Leiterplatte (26) auflötbar sind.Thermal overload relay housed in a housing for protecting three-phase motors, with adjustment devices for adjustment and adjustment on the user interface, characterized in that pins (24) projecting on one side of the housing (20) and connected to the components located within the housing (20), which can be soldered onto a printed circuit board (26).
EP99100909A 1998-03-05 1999-01-20 Thermal-type overload relay. Withdrawn EP0940831A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29803871U DE29803871U1 (en) 1998-03-05 1998-03-05 Thermal overload relay
DE29803871U 1998-03-05

Publications (2)

Publication Number Publication Date
EP0940831A2 true EP0940831A2 (en) 1999-09-08
EP0940831A3 EP0940831A3 (en) 2000-06-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100909A Withdrawn EP0940831A3 (en) 1998-03-05 1999-01-20 Thermal-type overload relay.

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EP (1) EP0940831A3 (en)
DE (1) DE29803871U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1737007A1 (en) * 2005-06-20 2006-12-27 Siemens Aktiengesellschaft Electronic function relay

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939266A1 (en) * 1979-09-28 1981-04-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Module with relay mounted on circuit board - has holes for relay connection legs and its own connection legs
EP0316707A1 (en) * 1987-11-12 1989-05-24 Itt Industries, Inc. Miniaturized thermal contact breaker for printed circuit board
JPH07161275A (en) * 1993-12-09 1995-06-23 Fuji Electric Co Ltd Thermal type overload relay

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538567A1 (en) * 1966-07-01 1969-11-27 Hochhaeusler Dr Ing Paul Thermal overcurrent release
FR2660793B1 (en) * 1990-04-06 1992-07-03 Telemacenique THERMAL RELAY.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939266A1 (en) * 1979-09-28 1981-04-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Module with relay mounted on circuit board - has holes for relay connection legs and its own connection legs
EP0316707A1 (en) * 1987-11-12 1989-05-24 Itt Industries, Inc. Miniaturized thermal contact breaker for printed circuit board
JPH07161275A (en) * 1993-12-09 1995-06-23 Fuji Electric Co Ltd Thermal type overload relay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1737007A1 (en) * 2005-06-20 2006-12-27 Siemens Aktiengesellschaft Electronic function relay
US7317170B2 (en) 2005-06-20 2008-01-08 Siemens Aktiengesellschaft Electronic function relay

Also Published As

Publication number Publication date
EP0940831A3 (en) 2000-06-28
DE29803871U1 (en) 1998-06-10

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