EP0212048B1 - Emergency switch for dc current - Google Patents

Emergency switch for dc current Download PDF

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Publication number
EP0212048B1
EP0212048B1 EP19860103341 EP86103341A EP0212048B1 EP 0212048 B1 EP0212048 B1 EP 0212048B1 EP 19860103341 EP19860103341 EP 19860103341 EP 86103341 A EP86103341 A EP 86103341A EP 0212048 B1 EP0212048 B1 EP 0212048B1
Authority
EP
European Patent Office
Prior art keywords
housing
lugs
emergency switch
contact bridge
tabs
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
EP19860103341
Other languages
German (de)
French (fr)
Other versions
EP0212048A3 (en
EP0212048A2 (en
Inventor
Anton Dipl.-Ing. Happach
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.)
Schaltbau GmbH
Original Assignee
Schaltbau 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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0212048A2 publication Critical patent/EP0212048A2/en
Publication of EP0212048A3 publication Critical patent/EP0212048A3/en
Application granted granted Critical
Publication of EP0212048B1 publication Critical patent/EP0212048B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to an emergency switch according to the preamble features of claim 1.
  • the tabs for the external connections are provided with corresponding cross sections and are usually formed in one piece with the carriers of the fixed contacts in order to avoid unnecessary contact resistances.
  • the tabs are usually parallel or counter-parallel to each other on one or two of the housing mutually parallel boundary surfaces of the housing. They are usually provided with holes and internal threads cut into them.
  • a snap switch according to the preamble of claim 1 is known from DE-A-29 44 303.
  • other switches are known from DE-B-16 40 042, FR-A-21 58 674 and GB-A-20 78 012.
  • the object of the invention is to improve an emergency switch of the type mentioned in terms of its space requirements and in terms of reducing damage to the tabs.
  • the embodiment of the emergency switch according to the invention has the advantage that the tabs no longer protrude beyond the housing profile and the emergency switch therefore requires less space during packaging and installation.
  • the tabs are integrated in the two narrow sides of the housing that run parallel to the direction of movement of the contact bridge, because then the mechanical actuation of the emergency switch in the direction of movement of the contact bridge is not hindered by the electrical connections.
  • the tabs are perforated in a manner known per se, and on their sides facing the interior of the housing are above the holes Approaches with an internal thread are provided.
  • an embodiment of an emergency switch according to the invention is shown in a partially schematic representation.
  • the mechanical actuating plunger 4 is guided in a wall 3 parallel to the contact bridge, by means of which the snap springs 5 are transferred from one end position to the other end position.
  • the contact bridge 2 is either pressed against the return spring 6, and the switch interrupts the current flow, or the return spring 6 is released and presses the contact bridge 2 with its pads 7 made of special material against the fixed contacts 8 fixed in the housing 1, the conductive carriers 9 are attached.
  • the carriers 9 are bent from plates 10 at right angles.
  • the tabs 11 are also bent at a right angle from the plates 10 and, according to the invention, are aligned in the two mutually parallel housing walls 12.
  • the tabs 11 are perforated and provided on their sides facing the interior of the housing with lugs 13 above the holes, which have an internal thread.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Tumbler Switches (AREA)

Description

Gegenstand der Erfindung ist ein Notschalter gemäß den oberbegrifflichen Merkmalen des Anspruchs 1.The invention relates to an emergency switch according to the preamble features of claim 1.

Notschalter dieser Art dienen dazu, um Gleichstromverbraucher, insbesondere gleislose Batteriefahrzeuge, in Notsituationen schnell zum Stehen zu bringen oder von ihrer Stromquelle zu trennen. Sie müssen Ströme von erheblicher Stärke bis zu mehreren 100 Ampere fuhren. Demgemäß sind die Laschen für die äußeren Anschlüsse mit entsprechenden Querschnitten ausgestattet und sind mit den Trägern der Festkontakte gewöhnlich aus einem Stück geformt, um überflüssige Übergangswiderstände zu vermeiden. Die Laschen werden aus dem Gehäuse meist parallel oder gegenparallel zueinander an einer oder zwei zueinander parallelen Begrenzungsflächen des Gehäuses herausgeführt. Sie sind meist mit Bohrungen und darin eingeschnittenen Innengewinden versehen. Diese bekannten Ausführungsformen haben den Nachteil, daß die über das Gehäuseprofil herausragenden Laschen bei der Verpackung und beim Einbau unnötig Raum beanspruchen. Darüber hinaus sind die Innengewinde in den Laschen leicht zugänglich und bei unsachgemäßer Handhabung leicht Beschädigungen ausgesetzt.Emergency switches of this type are used to quickly bring DC consumers, in particular trackless battery vehicles, to a standstill in emergency situations or to disconnect them from their power source. They have to carry currents of considerable strength up to several 100 amperes. Accordingly, the tabs for the external connections are provided with corresponding cross sections and are usually formed in one piece with the carriers of the fixed contacts in order to avoid unnecessary contact resistances. The tabs are usually parallel or counter-parallel to each other on one or two of the housing mutually parallel boundary surfaces of the housing. They are usually provided with holes and internal threads cut into them. These known embodiments have the disadvantage that the tabs projecting beyond the housing profile take up unnecessary space during packaging and installation. In addition, the internal threads in the tabs are easily accessible and easily damaged if not handled properly.

Ein Schnappschalter gemäß dem Oberbegriff des Anspruchs 1 ist aus der DE-A-29 44 303 bekannt. Darüber hinaus sind weitere Schalter aus der DE-B-16 40 042, der FR-A-21 58 674 und der GB-A-20 78 012 bekannt.A snap switch according to the preamble of claim 1 is known from DE-A-29 44 303. In addition, other switches are known from DE-B-16 40 042, FR-A-21 58 674 and GB-A-20 78 012.

Aufgabe der Erfindung ist es, einen Notschalter der eingangs genannten Art hinsichtlich seines Raumbedarfs und hinsichtlich der Verringerung von Beschädigungen an den Laschen zu verbessern.The object of the invention is to improve an emergency switch of the type mentioned in terms of its space requirements and in terms of reducing damage to the tabs.

Diese Aufgabe wird erfindungsgemäß durch die Lehre des Anspruchs 1 gelöst.This object is achieved according to the invention by the teaching of claim 1.

Die erfindungsgemäße Ausführungsform des Notschalters hat den Vorteil, daß die Laschen nun nicht mehr über das Gehäuseprofil hinausragen und der Notschalter deswegen bei Verpackung und Einbau einen geringeren Raumbedarf hat.The embodiment of the emergency switch according to the invention has the advantage that the tabs no longer protrude beyond the housing profile and the emergency switch therefore requires less space during packaging and installation.

Nach der Erfindung ist es von besonderem Vorteil, wenn die Laschen in die beiden zur Bewegungsrichtung der Kontaktbrücke parallel verlaufenden Schmalseiten des Gehäuses eingebunden sind, weil dann die in Richtung der Bewegung der Kontaktbrücke erfolgende mechanische Betätigung des Notschalters nicht durch die elektrischen Anschlüsse behindert wird.According to the invention, it is particularly advantageous if the tabs are integrated in the two narrow sides of the housing that run parallel to the direction of movement of the contact bridge, because then the mechanical actuation of the emergency switch in the direction of movement of the contact bridge is not hindered by the electrical connections.

Um eine zuverlässige, lösbare Kontaktgabe zu dem Notschalter durch Verschrauben zu ermöglichen und die Gefahr einer Beschädigung des Innengewindes weitgehend zu vermeiden, sind in Weiterbildung der Erfindung die Laschen in an sich bekannter Weise gelocht, und auf ihren, dem Gehäuseinneren zugewandten Seiten sind über den Löchern Ansätze mit einem Innengewinde vorgesehen.In order to enable reliable, detachable contacting with the emergency switch by screwing and largely avoid the risk of damage to the internal thread, in a further development of the invention the tabs are perforated in a manner known per se, and on their sides facing the interior of the housing are above the holes Approaches with an internal thread are provided.

In der Zeichnung ist in zum Teil schematischer Darstellung ein Ausführungsbeispiel eines Notschalters nach der Erfindung dargestellt. In dem rechteckigen Gehäuse 1 ist in einer zur Kontaktbrücke parallelen Wandung 3 der mechanische Betätigungsstößel 4 geführt, mit dessen Hilfe die Schnappfedern 5 aus der einen Endlage in die andere Endlage überführt werden. Dadurch wird die Kontaktbrücke 2 entweder gegen die Rückstellfeder 6 nach unten gedrückt, und der Schalter unterbricht den Stromfluß, oder die Rückstellfeder 6 wird freigegeben und drückt die Kontaktbrücke 2 mit ihren Auflagen 7 aus besonderem Material gegen die im Gehäuse 1 festmontierten Festkontakte 8, die auf leitenden Trägern 9 angebracht sind. Die Träger 9 sind von Platten 10 rechtwinklig abgebogen. Von den Platten 10 sind auch die Laschen 11 rechtwinklig abgebogen, die nach der Erfindung fluchtend in die beiden, zueinander parallelen Gehäusewandungen 12 eingebunden sind. Die Laschen 11 sind gelocht und auf ihren dem Gehäuseinneren zugewandten Seiten über den Löchern mit Ansätzen 13 versehen, die ein Innengewinde haben.In the drawing, an embodiment of an emergency switch according to the invention is shown in a partially schematic representation. In the rectangular housing 1, the mechanical actuating plunger 4 is guided in a wall 3 parallel to the contact bridge, by means of which the snap springs 5 are transferred from one end position to the other end position. Characterized the contact bridge 2 is either pressed against the return spring 6, and the switch interrupts the current flow, or the return spring 6 is released and presses the contact bridge 2 with its pads 7 made of special material against the fixed contacts 8 fixed in the housing 1, the conductive carriers 9 are attached. The carriers 9 are bent from plates 10 at right angles. The tabs 11 are also bent at a right angle from the plates 10 and, according to the invention, are aligned in the two mutually parallel housing walls 12. The tabs 11 are perforated and provided on their sides facing the interior of the housing with lugs 13 above the holes, which have an internal thread.

Claims (3)

  1. Emergency switch for direct current, having a doubly interrupting contact bridge (2), which is driven by means of catch springs (5) and interacts with two fixed contacts (8) accommodated in a rectangular housing (1), the electrically conductive carriers (9) of the fixed contacts (8) being formed from one piece with the lugs (11) for the outer terminals, characterised in that the lugs (11) are integrated into the housing (1) in such a way that their surfaces intended for contact making are aligned with the outer housing wall (12), and in that the lugs (11) are arranged inside the contour of the housing.
  2. Emergency switch according to Claim 1, characterised in that the lugs (11) are integrated into the two narrow sides of the housing (1) which extend parallel to the direction of movement of the contact bridge (2).
  3. Emergency switch according to Claim 1 or 2, characterised in that the lugs (11) are perforated and are provided above the perforations on their sides facing the interior of the housing with shoulders (13) having an internal thread.
EP19860103341 1985-05-10 1986-03-12 Emergency switch for dc current Expired - Lifetime EP0212048B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8513914U 1985-05-10
DE19858513914 DE8513914U1 (en) 1985-05-10 1985-05-10 Emergency switch for direct current

Publications (3)

Publication Number Publication Date
EP0212048A2 EP0212048A2 (en) 1987-03-04
EP0212048A3 EP0212048A3 (en) 1989-03-29
EP0212048B1 true EP0212048B1 (en) 1991-09-11

Family

ID=6780970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860103341 Expired - Lifetime EP0212048B1 (en) 1985-05-10 1986-03-12 Emergency switch for dc current

Country Status (4)

Country Link
EP (1) EP0212048B1 (en)
JP (1) JPS61260511A (en)
BG (1) BG45707A3 (en)
DE (1) DE8513914U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863522B1 (en) * 1997-03-03 2005-09-14 REMA Lipprandt GmbH & Co. KG Emergency switching device, in particular for load-handling trucks, to interrupt the connection between a motor or its control unit and the batteries

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640042B1 (en) * 1967-08-01 1970-11-12 Elektra Tailfingen Electrical switching device
FR2158674A5 (en) * 1971-10-28 1973-06-15 Alpes Fses Manufacture
DE2944303C3 (en) * 1979-11-02 1982-04-29 Siemens AG, 1000 Berlin und 8000 München Electrical snap switch
GB2078012B (en) * 1980-06-13 1983-12-07 Honeywell Ltd Electrical changeover switch

Also Published As

Publication number Publication date
JPS61260511A (en) 1986-11-18
EP0212048A3 (en) 1989-03-29
BG45707A3 (en) 1989-07-14
DE8513914U1 (en) 1985-06-20
EP0212048A2 (en) 1987-03-04

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