EP0338353A2 - Electrical installation equipment - Google Patents

Electrical installation equipment Download PDF

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Publication number
EP0338353A2
EP0338353A2 EP89106227A EP89106227A EP0338353A2 EP 0338353 A2 EP0338353 A2 EP 0338353A2 EP 89106227 A EP89106227 A EP 89106227A EP 89106227 A EP89106227 A EP 89106227A EP 0338353 A2 EP0338353 A2 EP 0338353A2
Authority
EP
European Patent Office
Prior art keywords
cover
switching
housing
switching chamber
chambers
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
EP89106227A
Other languages
German (de)
French (fr)
Other versions
EP0338353A3 (en
EP0338353B1 (en
Inventor
Gerhard Schwarz
Heinrich Hofmann
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 AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
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 Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Publication of EP0338353A2 publication Critical patent/EP0338353A2/en
Publication of EP0338353A3 publication Critical patent/EP0338353A3/en
Application granted granted Critical
Publication of EP0338353B1 publication Critical patent/EP0338353B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/042—Explosion-proof cases

Definitions

  • the invention relates to an explosion-protected electrical switching device according to the preamble of claim 1 and an explosion-protected coupling plug device according to the preamble of claim 6.
  • An explosion-proof electrical switching device of the type mentioned is known from DE-AS 26 17 606.
  • This explosion-proof switching device has a cup-like housing part in which a double contact point with two fixed contact pieces and two interacting movable contact pieces attached to a contact bridge is accommodated.
  • the contact bridge itself is connected or coupled to a contact actuating plunger which protrudes from the switching device and can be actuated from the outside, for example by means of a camshaft, when the Switching chamber is housed in a packet cam switch or in a coupling connector according to DE-OS 32 20 840.
  • the one-sided open side of the cup-like housing is closed by means of a cover, which is then cast in from the outside with casting resin.
  • the fixed contact pieces are pressed into the bowl-like lower part of the housing during manufacture, which entails an increased manufacturing outlay.
  • the switching chamber is installed in a cam switch, then the switching chambers surround the camshaft or penetrate the space between the switching chambers, so that the switching chambers are actuated or switched from the inside. This is disadvantageous in particular when a plurality of switching chambers are installed in a coupling socket of a coupling plug device, because the switching capacity is relatively low.
  • the object of the invention is to provide a switching chamber of the type mentioned, the manufacture of which is considerably simplified even with high switching power and which, moreover, can also be used more easily in a coupling plug device.
  • the housing of the switching chamber has two parts which can be put into one another, namely a cup-like housing and a cover, the fixed contact pieces attached to the tabs inserted in the cover being practically cast together with the cover after being placed in the cover and thus fixed.
  • the cover has L-shaped depressions on the surface away from the contact space, into which the tabs are inserted.
  • the switching chamber according to the invention is then installed in the coupling socket in such a way that the switching plunger projects radially outward from the housing, so that not a camshaft located inside, but a cam cylinder encompassing the individual switching chambers assigned to the phase conductors can be used as a type of drive shaft for actuation .
  • the switching chamber or contact space is not delimited by an independently pressure-tight encapsulated housing, but is formed within the plug-in device when it is assembled.
  • the housing of a switching chamber 100 (see FIG. 8) consists of an elongated rectangular housing bowl 10 and a cover 30 which, in the assignment as shown by the illustration in FIG. 7 with reference to FIG. 2, thus with edges 51 and 52 is inserted first into the housing bowl 10 (see below).
  • the housing bowl 10 is open on one side and has a base region 11, a bore 13 being provided on one of the longer side walls, in FIG. 1 of the upper side wall 12, through which, as in FIG an actuating plunger 14 for a contact bridge 15 extends through.
  • two pockets 16, 17 and 18 and 19 are formed, which are separated from one another by a web 20 or 21 in the middle of the narrow or short side walls;
  • pins 22 and 23 standing upright on the floor, which pins are made of a material which releases an extinguishing gas when exposed to an arc, so that the four pins serve as an arc extinguishing aid.
  • the actuating plunger 14 has at its end located in the interior of the housing or the cup-like housing part an extension 24 which extends through a bore 25 of the contact bridge 15, the extension 24 being smaller in its outer diameter than the actuating plunger 14, as a result of which a shoulder 26 is formed against which the contact bridge 15 is pressed.
  • the pressure force and the contact pressure force are generated by a contact pressure spring 27.
  • the contact bridge 15 carries two movable contact pieces 28 and 29.
  • the housing bowl 10 according to FIGS. 1 to 3 is closed by means of the cover 30, which has a plate-like region 31, on which projections 32, 33 and 34 are provided, which project perpendicularly from one side of the cover 30 and are thus approximately L-shaped Form channels 35 and 36, of which a channel section (see FIG. 4) extends to one longer side edge, whereas the other leg of the L-shape is exposed to the shorter side.
  • L-shaped depressions are provided symmetrically to the central axis or at least approximately symmetrically to the central axis, which corresponds to the central axis of the bore 13, the to the long side edge pointing and thus parallel to the central axis leg of the recess each open into a recess 37 and 38 on the longitudinal side edge, whereas the other legs perpendicular to the central axis each to the adjacent narrow side edges.
  • the two depressions, ie the channels 35 and 36, receive tabs 39 and 40, which tabs have an area 41 which is adapted to the L-shape of the two depressions 35 and 36.
  • the L-shape of this area 41 lies in its own plane.
  • the L-shape is connected on the one hand by the cutouts 37 and 38, which extend perpendicularly to the cover 30 via the side of the cover which is opposite the recesses 35 and 36, and on the legs which run towards the shorter side edges , also downward, ie in the same direction as the bends or bends 42 and 43 extending further bends 44 and 45 are formed; the folds 44 and 42 or 43 and 45 are thus each perpendicular to the L-shape, that is to say the area 41, and also aligned perpendicular to one another.
  • the lid 30 has tapered cutting edges 50 on its longitudinal edges and further cutting edges 51 and 52 on the shorter side edges opposite the edges 50 from the lid plane 31.
  • the cover 30 in the drawing in FIG. 7 is drawn in such a way that it is assigned to the housing cup 10 (FIG. 2) in the same way as it is inserted into the housing napt 10.
  • the cutting edges 51 and 52 and 50 engage in the interior of the cup-like housing 10 and lie on non-numbered shoulders provided in the housing cup in order to achieve a tight seal.
  • the fixed contact pieces 48, 49 with the connecting tabs 46 and 47 are used.
  • the tabs are inserted into the recesses 35, 36 as shown in FIG. 4 and the unit consisting of tabs 39 and 40 and cover 30 is thus inserted into the housing bowl 10.
  • This pressure-resistant switching chamber space which, as can be seen from FIG. 3, has two nose-like formations 53 and 54 on its two side surfaces running parallel to the switching plunger 14, is, together with other, similarly designed switching chamber spaces in receiving chambers 60 in a housing 61 (FIG. 9) inserted, which housing 61 is part of the explosion-proof coupling socket shown in Figure 8 or 10.
  • the coupling socket according to FIG. 8 thus comprises the housing 61 (see also FIG. 9), a further housing 62 which is connected to the housing 61 via screw connections 63, a socket body 64 which is connected to the housing 61 by means of a screw 65, and a driver 66 and a cam cylinder 67 between the housing 61 and the socket body 64.
  • sockets 68 which cooperate with the plug pins of a plug (not shown) or into which the plug pins can be inserted.
  • the driver ring or driver 66 which comprises the socket body 64 at its end facing away from the socket openings 69, has collar-like, axial projections 70 on its socket-side surface, which have at least one slot-like recess 71, and the driver 66 has on the side facing away from the socket openings distributed around the circumference, projecting in the axial direction, pins 72, which cooperate with a spring 74 arranged within an annular groove 73 of the cam cylinder 67, a spring-type switching mechanism (not shown in more detail) being present, with which the cam cylinder 67 is rotated when the driver 66 is rotated.
  • the housing 61 has a housing plate 75 (also referred to as plate 75 for short), on the surface of which is on the socket side, a central guide post 76 is formed, which has a central opening 77 through which the screw 65 extends. Furthermore, the plate 75 has circumferentially distributed housing projections 78 which protrude in the same direction as the guide post 76, which, as can be seen from FIG. 9, form a triangular shape, with opposing walls each having a groove 79 and 80 which correspond to the lugs 53 and 54 are adjusted. The spaces between two projections 78 each serve to guide the switching chambers according to FIGS. 1 to 7. As a result, the switching chambers are held in a form-fitting manner within the housing 61.
  • the housing plate 75 has, on the side on which the projections 78 are formed, a rim 81, which is cylindrical and surrounds the housing projections 78 and, as can be seen from FIG. 8, serves to guide the cam cylinder 67 insofar as the cam cylinder 67 comprises the rim 81 with its end remote from the socket. It can be seen that the actuating plunger 14 protrude outwards from the switching chambers; The cam surface 82 of the cam cylinder 67 is located in this area and this cam surface controls the position of the actuating plunger 14 and thus the switching position of the switching chambers when the cam cylinder 67 is rotated.
  • the plug of an explosion-protected plug-in device has a collar with a nose which projects radially outward on its free edge.
  • This collar engages in the space 83 between the housing 62 and the outer surface of the socket body 64, one in the housing 62 axially extending groove 84 is formed, in which the nose of the plug can slide when the plug is inserted with its collar into the space 83.
  • the nose then engages in the recess 71 and in this way can be rotated by turning the collar of the driver 66, whereby the spring mechanism is tensioned with the spring 74 via the pin 72 and released after a certain rotation, so that on the cam surface 82 the actuating plunger 14 are actuated.
  • the assignment is to be selected so that the switching chambers are switched off before inserting the plug with the plug pins into the sockets 68, so that an arc is not drawn by inserting the plug between the sockets and the plug pins, which ignite potentially explosive gases can.
  • the contact between the socket and the connector pins is therefore voltage-free.
  • the collar of the plug is then rotated, whereby the driver 66 is rotated; the switching chambers are switched on and electrical energy can then flow through the coupling plug device.
  • connection terminals 90 are not shown in detail and are only indicated schematically.
  • the outer surface of the guide post 76 has an axially extending groove 91 which continues into an opening 92 in the housing plate 75; As can be seen from FIG. 8, a flat ribbon conductor (conductor rail) 93 is inserted into this groove 91, which is riveted to the socket 68a and passes through the opening 92 and thereby projects beyond the housing plate 75. The neutral or PEN conductor is then connected to this rail 93.
  • the central opening 77 is surrounded by a collar 94, which also surrounds the head 95 of the screw 65, and the conductor rail 93 also projects beyond the collar 94.
  • the connecting terminals 90 are located in an end cover 96 which is firmly connected to the housing plate 75 by means of screw connections 97 with an axially projecting cylinder edge 98.
  • the housing 62 is connected to the housing 61 via the screw connection 63 and the screw 65 or the screw bolt 65 is used to hold the housing 61 and the plug body 64 together.
  • the bushing openings 69 are closed by means of a cover 99, which is articulated on a joint 100 on the housing 62 and is continuously folded into the position shown in FIG. 8 by means of a spring (not shown).

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

A switching chamber consists of a housing receptacle (10) and a cover (30) seated thereon, which together form the contact chamber of the switching equipment. On the cover there are placed flaps (39, 40) which are inserted together with the cover into the housing receptacle; after insertion, the space between the cover and the free edge of the housing receptacle is filled in with cast resin. Such a switching chamber is used in the socket of an explosion-protected plug-in coupling device. <IMAGE>

Description

Die Erfindung betrifft ein explosionsgeschütztes elek­trisches Schaltgerät nach dem Oberbegriff des Anspruches 1 sowie eine explosionsgeschützte Kupplungssteckvorrich­tung nach dem Oberbegriff des Anspruches 6.The invention relates to an explosion-protected electrical switching device according to the preamble of claim 1 and an explosion-protected coupling plug device according to the preamble of claim 6.

Ein explosionsgeschütztes elektrisches Schaltgerät der eingangs genannten Art ist aus der DE-AS 26 17 606 be­kannt geworden. Dieses explosionsgeschützte Schaltgerät besitzt ein napfartiges Gehäuseteil, in dem eine Doppel­kontaktstelle mit zwei festen Kontaktstücken und zwei damit zusammenwirkenden, an einer Kontaktbrücke ange­brachten bewegbaren Kontaktstücken untergebracht ist. Die Kontaktbrücke selbst ist mit einem Kontaktbetäti­gungsstößel verbunden oder gekuppelt, der aus dem Schaltgerät herausragt und von außen beispielsweise mit­tels einer Nockenwelle betätigt werden kann, wenn die Schaltkammer in einem Paketnockenschalter oder in einer Kupplungssteckvorrichtung gemäß der DE-OS 32 20 840 un­tergebracht ist. Die einseitig offene Seite des napfar­tigen Gehäuses ist mittels eines Deckels verschlossen, der dann von außen mit Gießharz zugegossen wird. Die festen Kontaktstücke werden bei der Herstellung des napfartigen Gehäuseunterteils in dieses eingepreßt, was einen erhöhten Fertigungsaufwand mit sich bringt.An explosion-proof electrical switching device of the type mentioned is known from DE-AS 26 17 606. This explosion-proof switching device has a cup-like housing part in which a double contact point with two fixed contact pieces and two interacting movable contact pieces attached to a contact bridge is accommodated. The contact bridge itself is connected or coupled to a contact actuating plunger which protrudes from the switching device and can be actuated from the outside, for example by means of a camshaft, when the Switching chamber is housed in a packet cam switch or in a coupling connector according to DE-OS 32 20 840. The one-sided open side of the cup-like housing is closed by means of a cover, which is then cast in from the outside with casting resin. The fixed contact pieces are pressed into the bowl-like lower part of the housing during manufacture, which entails an increased manufacturing outlay.

Wenn die Schaltkammer in einen Nockenschalter eingebaut ist, dann umgeben die Schaltkammern die Nockenwelle bzw. durchdringt die Nockenwelle den Raum zwischen den Schaltkammern, so daß die Schaltkammern von innen her betätigt bzw. geschaltet werden. Insbesondere dann, wenn mehrere Schaltkammern in eine Kupplungssteckdose einer Kupplungssteckvorrichtung eingebaut sind, ist dies nach­teilig, weil die Schaltleistung dabei relativ gering ist.If the switching chamber is installed in a cam switch, then the switching chambers surround the camshaft or penetrate the space between the switching chambers, so that the switching chambers are actuated or switched from the inside. This is disadvantageous in particular when a plurality of switching chambers are installed in a coupling socket of a coupling plug device, because the switching capacity is relatively low.

Aufgabe der Erfindung ist es, eine Schaltkammer der ein­gangs genannten Art zu schaffen, deren Herstellung auch bei hoher Schaltleistung erheblich vereinfacht ist und die darüberhinaus auch einfacher in einer Kupplungs­steckvorrichtung Verwendung finden kann.The object of the invention is to provide a switching chamber of the type mentioned, the manufacture of which is considerably simplified even with high switching power and which, moreover, can also be used more easily in a coupling plug device.

Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruches 1.This object is achieved according to the invention by the characterizing features of claim 1.

Erfindungsgemäß also besitzt das Gehäuse der Schaltkam­mer zwei ineinanderlegbare Teile, nämlich ein napfarti­ges Gehäuse und einen Deckel, wobei die an den in den Deckel eingelegten Laschen angebrachten festen Kontakt­stücke praktisch nach Einlegen in den Deckel zusammen mit dem Deckel auch vergossen werden und damit festge­legt sind.According to the invention, the housing of the switching chamber has two parts which can be put into one another, namely a cup-like housing and a cover, the fixed contact pieces attached to the tabs inserted in the cover being practically cast together with the cover after being placed in the cover and thus fixed.

In besonders vorteilhafter Weise besitzt der Deckel ge­mäß Anspruch 2 an der kontaktraumabseitigen Fläche L-­förmige Vertiefungen, in die die Laschen eingelegt sind.In a particularly advantageous manner, the cover has L-shaped depressions on the surface away from the contact space, into which the tabs are inserted.

Die Form der Laschen ist den Merkmalen des Anspruches 3 zu entnehmen.The shape of the tabs can be found in the features of claim 3.

Die Strukturierung des Deckels zwecks einfachen Einset­zens in das Gehäuse ist den Unteransprüchen 4 und 5 zu entnehmen.The structuring of the cover for easy insertion into the housing can be found in subclaims 4 and 5.

Damit das Gießharz nicht ins Innere des Kontakt- oder Schaltkammerraumes eindringen kann, sind gemäß kenn­zeichnenden Merkmalen des Anspruches 6 umlaufende spitze Kanten, Schneidkanten, am Deckel angeformt, die eine Abdichtung zwischen Deckel und Kontaktraum bewirken.So that the casting resin cannot penetrate into the interior of the contact or switching chamber space, all-round pointed edges, cutting edges, are formed on the cover according to the characterizing features of claim 6, which effect a seal between the cover and the contact space.

Eine Anwendung der Erfindung ist in den kennzeichnenden Merkmalen des Anspruches 7 zu sehen. Danach wird die erfindungsgemäße Schaltkammer so in die Kupplungssteck­dose eingebaut, daß die Schaltstößel radial nach außen aus dem Gehäuse vorspringen, so daß zur Betätigung nicht eine innen befindliche Nockenwelle, sondern ein die ein­zelnen, den Phasenleitern zugeordneten Schaltkammern umgreifender Nockenzylinder als eine Art Antriebswelle verwendet werden kann.An application of the invention can be seen in the characterizing features of claim 7. The switching chamber according to the invention is then installed in the coupling socket in such a way that the switching plunger projects radially outward from the housing, so that not a camshaft located inside, but a cam cylinder encompassing the individual switching chambers assigned to the phase conductors can be used as a type of drive shaft for actuation .

Zwar ist aus der DE-AS 23 59 752 bekannt, die Kontakt­brücken von außen zu betätigen. Der Schaltkammer- oder Kontaktraum wird aber nicht von einem eigenständig druckfest gekapselten Gehäuse umgrenzt, sondern inner­halb der Steckvorrichtung bei deren Zusammenbau gebil­det.It is known from DE-AS 23 59 752 to operate the contact bridges from the outside. The switching chamber or contact space is not delimited by an independently pressure-tight encapsulated housing, but is formed within the plug-in device when it is assembled.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen sind den weiteren Unteransprüchen zu entnehmen.Further advantageous refinements and improvements can be found in the further subclaims.

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

Es zeigen:

  • Figur 1 eine Einsicht in das geöffnete Schaltkammerge­häuse,
  • Figur 2 eine Schnittansicht gemäß der Schnittlinie II-II der Figur 1,
  • Figur 3 eine Schnittansicht gemäß der Schnittlinie III-III der Figur 1,
  • Figur 4 eine perspektivische Ansicht des Deckels für das Gehäuse nach den Figuren 1 bis 3,
  • Figur 5 eine Aufsicht auf die Innenseite des Deckels nach Figur 4,
  • Figur 6 eine Aufsicht auf die Außenseite des Deckels,
  • Figur 7 eine Schnittansicht gemäß der Schnittlinie VII-VII der Figur 6,
  • Figur 8 eine Schnittansicht durch eine erfindungsgemä­ße Kupplungssteckdose, in der die Schaltkam­mern gemäß Figuren 1 bis 7 eingebaut sind,
  • Figur 9 und 10 eine Seitenansicht und eine Schnittansicht eines Teils der Kupplungssteckdose.
Show it:
  • FIG. 1 shows an insight into the open interrupter housing,
  • FIG. 2 shows a sectional view along the section line II-II of FIG. 1,
  • FIG. 3 shows a sectional view along the section line III-III of FIG. 1,
  • FIG. 4 shows a perspective view of the cover for the housing according to FIGS. 1 to 3,
  • FIG. 5 shows a top view of the inside of the cover according to FIG. 4,
  • FIG. 6 shows a top view of the outside of the cover,
  • FIG. 7 shows a sectional view along the section line VII-VII of FIG. 6,
  • FIG. 8 shows a sectional view through a coupling socket according to the invention, in which the switching chambers according to FIGS. 1 to 7 are installed,
  • Figures 9 and 10 are a side view and a sectional view of part of the coupling socket.

Das Gehäuse einer Schaltkammer 100 (s. Fig. 8) besteht aus einem im Grundriß langestreckt rechteckigen Gehäuse­napf 10 und einem Deckel 30, der in der Zuordnung so, wie durch die Darstellung der Figur 7 bezogen auf Figur 2 gezeigt, also mit Kanten 51 und 52 voran in den Gehäu­senapf 10 eingesetzt wird (s. weiter unten). Der Gehäu­senapf 10 ist, wie aud Figur 2 ersichtlich, nach einer Seite offen und weist einen Bodenbereich 11 auf, wobei an einer der längeren Seitenwände, in Figur 1 der oberen Seitenwand 12 eine Bohrung 13 vorgesehen ist, durch die, wie in Figur 1 strichpunktiert dargestellt ist, ein Be­tätigungsstößel 14 für eine Kontaktbrücke 15 hindurch­greift. An den Innenseiten der beiden Schmalseitenwände sind jeweils zwei Taschen 16, 17 sowie 18 und 19 ausge­formt, die durch einen Steg 20 bzw. 21 in der Mitte der schmalen bzw. kurzen Seitenwände voneinander getrennt sind; jeweils in den Taschen 16 bis 19 befinden sich senkrecht am Boden aufstehende Stifte 22 und 23, die aus einem Material hergestellt sind, das bei Einwirkung ei­nes Lichtbogens Löschgas abgibt, so daß die vier Stifte als Lichtbogenlöschhilfe dienen.The housing of a switching chamber 100 (see FIG. 8) consists of an elongated rectangular housing bowl 10 and a cover 30 which, in the assignment as shown by the illustration in FIG. 7 with reference to FIG. 2, thus with edges 51 and 52 is inserted first into the housing bowl 10 (see below). As can be seen from FIG. 2, the housing bowl 10 is open on one side and has a base region 11, a bore 13 being provided on one of the longer side walls, in FIG. 1 of the upper side wall 12, through which, as in FIG an actuating plunger 14 for a contact bridge 15 extends through. On the inside of the two narrow side walls, two pockets 16, 17 and 18 and 19 are formed, which are separated from one another by a web 20 or 21 in the middle of the narrow or short side walls; In each case in the pockets 16 to 19 there are pins 22 and 23 standing upright on the floor, which pins are made of a material which releases an extinguishing gas when exposed to an arc, so that the four pins serve as an arc extinguishing aid.

Der Betätigungsstößel 14 besitzt an seinem im Inneren des Gehäuses bzw. des napfartigen Gehäuseteils befindli­chen Ende eine Verlängerung 24, die durch eine Bohrung 25 der Kontaktbrücke 15 hindurchgreift, wobei die Ver­längerung 24 in ihrem Außendurchmesser kleiner ist als der Betätigungsstößel 14, wodurch ein Absatz 26 gebildet ist, gegen den die Kontaktbrücke 15 angedrückt wird. Die Andruckkraft und die Kontakdruckkraft werden durch eine Kontakdruckfeder 27 erzeugt. Die Kontaktbrücke 15 trägt zwei bewegliche Kontaktstücke 28 und 29.The actuating plunger 14 has at its end located in the interior of the housing or the cup-like housing part an extension 24 which extends through a bore 25 of the contact bridge 15, the extension 24 being smaller in its outer diameter than the actuating plunger 14, as a result of which a shoulder 26 is formed against which the contact bridge 15 is pressed. The pressure force and the contact pressure force are generated by a contact pressure spring 27. The contact bridge 15 carries two movable contact pieces 28 and 29.

Der Gehäusenapf 10 gemäß den Figuren 1 bis 3 wird mit­tels des Deckels 30 verschlossen, der einen plattenarti­gen Bereich 31 aufweist, an dem Vorsprünge 32, 33 und 34 vorgesehen sind, die senkrecht von der einen Seite des Deckels 30 vorspringen und so angenähert L-förmige Kanä­le 35 und 36 bilden, von denen ein Kanalabschnitt (s. Figur 4) bis zu der einen längeren Seitenkante reicht, wogegen jeweils der andere Schenkel der L-Form zur kür­zeren Seite hin freiliegt. Mit anderen Worten: Ausgehend von den freien, parallel zu dem Deckel 30 verlaufenden Flächen der Vorsprünge 33, 32 und 34 sind symmetrisch zur Mittelachse oder zumindest annähernd symmetrisch zur Mittelachse, die der Mittelachse der Bohrung 13 ent­spricht, L-förmige Vertiefungen vorgesehen, wobei die zur langen Seitenkante hinweisenden und damit parallel zur Mittelachse verlaufenden Schenkel der Vertiefung jeweils in eine Aussparung 37 und 38 an der Längs-Sei­tenkante einmünden, wogegen die anderen Schenkel senkrecht zur Mittelachse jeweils hin zu den benachbar­ten Schmalseitenkanten verlaufen. Die beiden Vertiefun­gen, d.h. die Kanäle 35 und 36, nehmen Laschen 39 und 40 auf, welche Laschen einen der L-Form der beiden Vertie­fungen 35 und 36 angepaßten Bereich 41 aufweisen. Die L-Form dieses Bereiches 41 liegt in seiner eigenen Ebe­ne. An die L-Form schließen sich einerseits durch die Aussparungen 37 und 38 verlaufende, senkrecht zum Deckel 30 über die den Vertiefungen 35 und 36 entgegengesetzt liegenden Seite des Deckels herausragende Abwinkelungen 42 und 43 an und an den Schenkeln, die zu den kürzeren Seitenkanten hin verlaufen, ebenfalls nach unten, also in die gleiche Richtung wie die Abkantungen oder Abwin­kelungen 42 und 43 verlaufende weitere Abkantungen 44 und 45 angeformt sind; die Abkantungen 44 und 42 bzw. 43 und 45 sind somit jeweils senkrecht zur L-Form, also zum Bereich 41, und auch senkrecht zueinander ausgerichtet.The housing bowl 10 according to FIGS. 1 to 3 is closed by means of the cover 30, which has a plate-like region 31, on which projections 32, 33 and 34 are provided, which project perpendicularly from one side of the cover 30 and are thus approximately L-shaped Form channels 35 and 36, of which a channel section (see FIG. 4) extends to one longer side edge, whereas the other leg of the L-shape is exposed to the shorter side. In other words: Starting from the free surfaces of the projections 33, 32 and 34 running parallel to the cover 30, L-shaped depressions are provided symmetrically to the central axis or at least approximately symmetrically to the central axis, which corresponds to the central axis of the bore 13, the to the long side edge pointing and thus parallel to the central axis leg of the recess each open into a recess 37 and 38 on the longitudinal side edge, whereas the other legs perpendicular to the central axis each to the adjacent narrow side edges. The two depressions, ie the channels 35 and 36, receive tabs 39 and 40, which tabs have an area 41 which is adapted to the L-shape of the two depressions 35 and 36. The L-shape of this area 41 lies in its own plane. The L-shape is connected on the one hand by the cutouts 37 and 38, which extend perpendicularly to the cover 30 via the side of the cover which is opposite the recesses 35 and 36, and on the legs which run towards the shorter side edges , also downward, ie in the same direction as the bends or bends 42 and 43 extending further bends 44 and 45 are formed; the folds 44 and 42 or 43 and 45 are thus each perpendicular to the L-shape, that is to say the area 41, and also aligned perpendicular to one another.

An der den Abkantungen 42 bzw. 43 entgegengesetzt lie­genden Kante der weiteren Abkantungen 44 und 45 schlie­ßen senkrecht dazu und parallel zueinander verlaufende Anschlußlaschen 46 und 47 an. Die Abkantungen 44 und 45 und die Anschlußlaschen 46 und 47 liegen außerhalb der Umfangskontur des Deckels 30 bzw. 31.On the edge of the further bevels 44 and 45 lying opposite the bevels 42 and 43, respectively, there are connecting straps 46 and 47 which run perpendicularly thereto and parallel to one another. The folds 44 and 45 and the connecting straps 46 and 47 lie outside the circumferential contour of the cover 30 and 31, respectively.

Auf der in der Figur 4 nicht sichtbaren Seite der Abkan­tungen 42 und 43 sind feststehende Kontaktstücke 48 und 49 angebracht, die in Figur 5 sichtbar sind und, wie man aus Figur 5 erkennen kann, mit den beweglichen Kontakt­stücken 28 und 29 der Kontaktbrücke 15 zusammenwirken. Der Deckel 30 besitzt an seinen Längskanten angespitzt verlaufende Schneidkanten 50 und an den kürzeren Seiten­kanten gegenüber den Kanten 50 von der Deckelebene 31 weiter entfernt liegende weitere Schneidkanten 51 und 52.On the side of the bevels 42 and 43 which is not visible in FIG. 4, fixed contact pieces 48 and 49 are attached, which are visible in FIG. 5 and, as can be seen from FIG. 5, interact with the movable contact pieces 28 and 29 of the contact bridge 15. The lid 30 has tapered cutting edges 50 on its longitudinal edges and further cutting edges 51 and 52 on the shorter side edges opposite the edges 50 from the lid plane 31.

Wie oben angedeutet, ist der Deckel 30 in der Zeichnung Figur 7 so dem Gehäusenapf 10 (Figur 2) zugeordnet ge­zeichnet, wie er auch in den Gehäusenapt 10 eingesetzt wird. Die Schneidkanten 51 und 52 sowie 50 greifen ins Innere des napfartigen Gehäuses 10 ein und legen sich auf im Gehäusenapf vorgesehene, nicht bezifferte Absätze zur Erzielung eines dichten Abschlusses. Mit dem Einbau des Deckels 30 werden auch die feststehenden Kontakt­stücke 48, 49 mit den Anschlußfahnen 46 und 47 einge­setzt. Die Laschen sind so in die Vertiefungen 35, 36 eingelegt wie in Figur 4 gezeigt und damit wird die Ein­heit aus Laschen 39 und 40 und Deckel 30 in den Gehäuse­napf 10 eingesetzt. Nach Einbau des Deckels 30 mit den Laschen 39, 40 wird der Bereich zwischen der freien obe­ren Fläche des Deckels 30 mit den Laschen 49, 40 und dem Umfangsrand des Gehäusenapfes 10 mit Gießharz ausge­gossen, wodurch ein druckdichter Verschluß zur Bildung des druckfesten Schaltkammerraums erzielt wird.As indicated above, the cover 30 in the drawing in FIG. 7 is drawn in such a way that it is assigned to the housing cup 10 (FIG. 2) in the same way as it is inserted into the housing napt 10. The cutting edges 51 and 52 and 50 engage in the interior of the cup-like housing 10 and lie on non-numbered shoulders provided in the housing cup in order to achieve a tight seal. With the installation of the cover 30, the fixed contact pieces 48, 49 with the connecting tabs 46 and 47 are used. The tabs are inserted into the recesses 35, 36 as shown in FIG. 4 and the unit consisting of tabs 39 and 40 and cover 30 is thus inserted into the housing bowl 10. After installation of the cover 30 with the tabs 39, 40, the area between the free upper surface of the cover 30 with the tabs 49, 40 and the peripheral edge of the housing cup 10 is poured out with casting resin, as a result of which a pressure-tight closure for forming the pressure-resistant switching chamber space is achieved.

Dieser druckfeste Schaltkammerraum, der, wie aus Figur 3 ersichtlich ist, an seinen beiden parallel zum Schalt­stößel 14 verlaufenden Seitenflächen zwei nasenartige Ausformungen 53 und 54 aufweist, wird zusammen mit ande­ren, gleich ausgebildeten Schaltkammerräumen in Aufnah­mekammern 60 in einem Gehäuse 61 (Fig. 9) eingeschoben, welches Gehäuse 61 Teil der in Figur 8 bzw. 10 darge­stellten explosionsgeschützen Kupplungssteckdose ist.This pressure-resistant switching chamber space, which, as can be seen from FIG. 3, has two nose-like formations 53 and 54 on its two side surfaces running parallel to the switching plunger 14, is, together with other, similarly designed switching chamber spaces in receiving chambers 60 in a housing 61 (FIG. 9) inserted, which housing 61 is part of the explosion-proof coupling socket shown in Figure 8 or 10.

Die Kupplungssteckdose gemäß Figur 8 umfaßt also das Gehäuse 61 (s. auch Figur 9), ein weiteres Gehäuse 62, das mit dem Gehäuse 61 über Schraubenverbindungen 63 verbunden ist, einen Steckbuchsenkörper 64, der mit dem Gehäuse 61 mittels einer Schraube 65 verbunden ist, und einen Mitnehmer 66 sowie einen Nockenzylinder 67 zwi­schen dem Gehäuse 61 und dem Steckbuchsenkörper 64.The coupling socket according to FIG. 8 thus comprises the housing 61 (see also FIG. 9), a further housing 62 which is connected to the housing 61 via screw connections 63, a socket body 64 which is connected to the housing 61 by means of a screw 65, and a driver 66 and a cam cylinder 67 between the housing 61 and the socket body 64.

Im Steckbuchsenkörper 64 befinden sich Buchsen 68, die mit den Steckerstiften eines nicht gezeigten Steckers zusammenwirken bzw. in die die Steckerstifte einfügbar sind. Der Mitnehmerring bzw. Mitnehmer 66, der den Steckbuchsenkörper 64 an seinem den Steckbuchsenöffnun­gen 69 abgewandten Ende umfaßt, besitzt an seiner steck­buchsenseitigen Fläche kragenartige, axiale Vorsprünge 70, die mindestens eine schlitzartige Ausnehmung 71 auf­weisen, und auf der den Steckbuchsenöffnungen abgewand­ten Seite besitzt der Mitnehmer 66 am Umfang verteilte, in axialer Richtung vorspringende Zapfen 72, die mit einer innerhalb einer ringförmigen Rille 73 des Nocken­zylinders 67 angeordneten Sprungfeder 74 zusammenwirken, wobei ein nicht näher dargestelltes Sprungschaltwerk vorhanden ist, mit dem bei Verdrehen des Mitnehmers 66 der Nockenzylinder 67 verdreht wird.In the socket body 64 there are sockets 68 which cooperate with the plug pins of a plug (not shown) or into which the plug pins can be inserted. The driver ring or driver 66, which comprises the socket body 64 at its end facing away from the socket openings 69, has collar-like, axial projections 70 on its socket-side surface, which have at least one slot-like recess 71, and the driver 66 has on the side facing away from the socket openings distributed around the circumference, projecting in the axial direction, pins 72, which cooperate with a spring 74 arranged within an annular groove 73 of the cam cylinder 67, a spring-type switching mechanism (not shown in more detail) being present, with which the cam cylinder 67 is rotated when the driver 66 is rotated.

Das Gehäuse 61 weist eine Gehäuseplatte 75 (kurz auch Platte 75 genannt) auf, an deren steckbuchsenseitigen Fläche ein zentraler Führungspfosten 76 angeformt ist, der eine Mitteldurchbrechung 77 aufweist, durch die die Schraube 65 hindurchgreift. Weiterhin besitzt die Platte 75 am Umfang verteilte Gehäusevorsprünge 78, die in die gleiche Richtung vorspringen wie der Führungspfosten 76, welche, wie aus Figur 9 ersichtlich ist, eine Dreiecks­form bilden, wobei sich gegenüberliegende Wände je eine Nut 79 und 80 aufweisen, die den Nasen 53 und 54 ange­paßt sind. Damit dienen die Zwischenräume zwischen je­weils zwei Vorsprüngen 78 zur Führung der Schaltkammern nach Figur 1 bis 7. Dadurch sind die Schaltkammern form­schlüssig innerhalb des Gehäuses 61 gehalten. Zur Ver­steifung besitzt die Gehäuseplatte 75 auf der Seite, auf der die Vorsprünge 78 angeformt sind, einen Randbord 81, der zylinderartig ausgebildet ist und die Gehäusevor­sprünge 78 umgibt und, wie aus Figur 8 ersichtlich ist, zur Führung des Nockenzylinders 67 dient, insoweit, als der Nockenzylinder 67 mit seinem buchsenabseitigen Ende den Randbord 81 umfaßt. Man erkennt, daß die Betäti­gungsstößel 14 nach außen hin aus den Schaltkammern her­ausragen; in diesem Bereich befindet sich die Nockenflä­che 82 des Nockenzylinders 67 und diese Nockenfläche steuert beim Verdrehen des Nockenzylinders 67 die Lage der Betätigungsstößel 14 und damit die Schaltstellung der Schaltkammern.The housing 61 has a housing plate 75 (also referred to as plate 75 for short), on the surface of which is on the socket side, a central guide post 76 is formed, which has a central opening 77 through which the screw 65 extends. Furthermore, the plate 75 has circumferentially distributed housing projections 78 which protrude in the same direction as the guide post 76, which, as can be seen from FIG. 9, form a triangular shape, with opposing walls each having a groove 79 and 80 which correspond to the lugs 53 and 54 are adjusted. The spaces between two projections 78 each serve to guide the switching chambers according to FIGS. 1 to 7. As a result, the switching chambers are held in a form-fitting manner within the housing 61. For stiffening, the housing plate 75 has, on the side on which the projections 78 are formed, a rim 81, which is cylindrical and surrounds the housing projections 78 and, as can be seen from FIG. 8, serves to guide the cam cylinder 67 insofar as the cam cylinder 67 comprises the rim 81 with its end remote from the socket. It can be seen that the actuating plunger 14 protrude outwards from the switching chambers; The cam surface 82 of the cam cylinder 67 is located in this area and this cam surface controls the position of the actuating plunger 14 and thus the switching position of the switching chambers when the cam cylinder 67 is rotated.

Es ist bekannt, daß der Stecker einer explosionsge­schützten Steckvorrichtung einen Kragen mit einer an dessen freiem Rand radial nach außen vorspringenden Nase aufweist. Dieser Kragen greift in den Zwischenraum 83 zwischem dem Gehäuse 62 und der Außenfläche des Steck­buchsenkörpers 64 ein, wobei in dem Gehäuse 62 eine axial verlaufende Nut 84 eingeformt ist, in der die Nase des Steckers gleiten kann, wenn der Stecker mit seinem Kragen in den Zwischenraum 83 eingefügt wird. Die Nase greift dann auch in die Ausnehmung 71 ein und auf diese Weise kann durch Verdrehen des Kragens der Mitnehmer 66 verdreht werden, wodurch über die Zapfen 72 das Sprung­schaltwerk mit der Sprungfeder 74 gespannt und nach ei­ner gewissen Umdrehung freigegeben wird, so daß über die Nockenfläche 82 die Betätigungsstößel 14 betätigt wer­den. Die Zuordnung ist so zu wählen, daß vor dem Einfü­gen des Steckers mit den Steckerstiften in die Steck­buchsen 68 die Schaltkammern ausgeschaltet sind, damit nicht durch das Einfügen des Steckers zwischen den Steckbuchsen und den Steckerstiften ein Lichtbogen gezo­gen wird, der evtl. vorhandene explosible Gase entzünden kann. Die Kontaktierung zwischen Steckbuchse und Steckerstiften erfolgt also spannungsfrei. Danach wird der Kragen des Steckers verdreht, wodurch der Mitnehmer 66 verdreht wird; dabei werden die Schaltkammern einge­schaltet und durch die Kupplungssteckvorrichtung kann dann elektrische Energie fließen.It is known that the plug of an explosion-protected plug-in device has a collar with a nose which projects radially outward on its free edge. This collar engages in the space 83 between the housing 62 and the outer surface of the socket body 64, one in the housing 62 axially extending groove 84 is formed, in which the nose of the plug can slide when the plug is inserted with its collar into the space 83. The nose then engages in the recess 71 and in this way can be rotated by turning the collar of the driver 66, whereby the spring mechanism is tensioned with the spring 74 via the pin 72 and released after a certain rotation, so that on the cam surface 82 the actuating plunger 14 are actuated. The assignment is to be selected so that the switching chambers are switched off before inserting the plug with the plug pins into the sockets 68, so that an arc is not drawn by inserting the plug between the sockets and the plug pins, which ignite potentially explosive gases can. The contact between the socket and the connector pins is therefore voltage-free. The collar of the plug is then rotated, whereby the driver 66 is rotated; the switching chambers are switched on and electrical energy can then flow through the coupling plug device.

Aufgrund eines Rücksprunges 85 am Gehäuse 62, dessen Innendurchmesser kleiner ist als der Außendurchmesser der Nase, ist es nicht möglich, im eingeschalteten Zu­stand der Schaltkammern, also im verdrehten Zustand des Kragens, den Stecker aus der Steckdose herauszuziehen. Dies geht erst dann, wenn der Kragen am Stecker in seine erste Stellung zurückgeschwenkt bzw. gedreht wird, so daß die Nase am Kragen des Steckers wieder in Flucht gelangt mit der axialen Nut 84; dabei werden die Kon­takte der Schaltkammern geöffnet und dadurch die Buchsen 68 spannungsfrei. Ein Funke zwischen den sich trennenden Buchsen und Steckerstiften entsteht nicht; ein entsprechender Zündfunke entstand vielmehr innerhalb der Schaltkammern und, da diese explosionsgeschützt und druckfest gekapselt sind, bestand auch keine Gefahr ei­ner Zündung einer explosiblen Umgbungsatmosphäre.Due to a recess 85 on the housing 62, the inside diameter of which is smaller than the outside diameter of the nose, it is not possible to pull the plug out of the socket when the switching chambers are switched on, that is to say when the collar is twisted. This is only possible when the collar on the plug is swiveled back or rotated into its first position, so that the nose on the collar of the plug is again in alignment with the axial groove 84; the contacts of the interrupters are opened and thereby the sockets 68 are de-energized. There is no spark between the separating sockets and plug pins; a Corresponding ignition spark arose rather within the switching chambers and, since these are explosion-proof and flameproof encapsulated, there was also no danger of ignition of an explosive ambient atmosphere.

Die Buchsen 68 besitzen an ihren den Öffnungen 69 abge­wandten Enden Anschlußstücke 86, die mit den Anschluß­fahnen 87 (s. Figur 8) bzw. 47 (s. Figur 4) gekuppelt sind. Die anderen Anschußfahnen 88 durchgreifen jeweils eine rechteckige Öffnung 89 in der Tragplatte 75 des Gehäuses 61 und können dann mit nicht näher dargestell­ten, nur schematisch angedeuteten Anschlußklemmen 90 verbunden werden.At their ends facing away from the openings 69, the bushings 68 have connecting pieces 86 which are coupled to the connecting lugs 87 (see FIG. 8) and 47 (see FIG. 4). The other connecting lugs 88 each pass through a rectangular opening 89 in the support plate 75 of the housing 61 and can then be connected to connection terminals 90, which are not shown in detail and are only indicated schematically.

Die Außenfläche des Führungspfostens 76 besitzt eine axial verlaufende Rille 91, die sich in eine Durchbre­chung 92 der Gehäuseplatte 75 fortsetzt; wie aus der Figur 8 ersichtlich, ist in diese Rille 91 ein Flach­bandleiter (Leiterschiene) 93 eingesetzt, der an der Buchse 68a angenietet ist und die Durchbrechung 92 durchgreift und dabei die Gehäuseplatte 75 überragt. An dieser Schiene 93 wird dann der Null- oder PEN-Leiter angeschlossen.The outer surface of the guide post 76 has an axially extending groove 91 which continues into an opening 92 in the housing plate 75; As can be seen from FIG. 8, a flat ribbon conductor (conductor rail) 93 is inserted into this groove 91, which is riveted to the socket 68a and passes through the opening 92 and thereby projects beyond the housing plate 75. The neutral or PEN conductor is then connected to this rail 93.

Die Mitteldurchbrechung 77 ist umgeben von einem Kragen 94, die auch den Kopf 95 der Schraube 65 umgibt, und die Leiterschiene 93 überragt auch den Kragen 94.The central opening 77 is surrounded by a collar 94, which also surrounds the head 95 of the screw 65, and the conductor rail 93 also projects beyond the collar 94.

Die Anschlußklemmen 90 befinden sich in einem Abschluß­deckel 96, der über Schraubenverbindungen 97 mit einem axial vorspringenden Zylinderrand 98 an der Gehäuseplat­te 75 fest verbunden ist. Über die Schraubenverbindung 63 ist das Gehäuse 62 mit dem Gehäuse 61 verbunden und zum Zusammenhalten von Gehäuse 61 und Steckerkörper 64 dient die Schraube 65 bzw. der Schraubenbolzen 65.The connecting terminals 90 are located in an end cover 96 which is firmly connected to the housing plate 75 by means of screw connections 97 with an axially projecting cylinder edge 98. The housing 62 is connected to the housing 61 via the screw connection 63 and the screw 65 or the screw bolt 65 is used to hold the housing 61 and the plug body 64 together.

Die Buchsenöffnungen 69 sind mittels eines Deckels 99 verschlossen, der an einem Gelenk 100 an dem Gehäuse 62 angelenkt ist und mittels einer nicht näher darge­stellten Feder dauernd in die in Figur 8 gezeigte Lage geklappt ist.The bushing openings 69 are closed by means of a cover 99, which is articulated on a joint 100 on the housing 62 and is continuously folded into the position shown in FIG. 8 by means of a spring (not shown).

Claims (9)

1. Explosionsgeschützte, druckfest gekapselte Schaltkammer, mit einer Doppelkontaktstelle mit zwei in Abstand zueinander angeordneten feststehenden Kontakt­stücken (48, 49), die mittels einer bewegliche Kontakt­stücke (28, 29) tragenden Kontaktbrücke (15) überbrück­bar sind, wobei die feststehenden Kontaktstücke (48, 49) aus der Schaltkammer herausgeführt sind und in Anschluß­laschen 46, 47; 87, 88) enden und wobei die Kontakt­brücke (15) mittels eines Betätigungsstößels (14) betä­tigbar ist, der eine Seitenwand der Schaltkammer zünd­durchschlagsicher durchgreift und aus dieser herausragt, und wobei die Schaltkammer ein napfartiges Gehäuse (10) aufweist, das mittels eines Deckels (30) verschlossen und außerhalb des Deckels (30) zugegossen ist, dadurch gekennzeichnet, daß der Deckel (30) auf seiner dem Kon­taktraum abgewandten Seite Vertiefungen (35, 36) auf­weist, in die Laschen (39, 40) mit den daran angeformten feststehenden Kontakstücken (48, 49) und den Anschluß­laschen (46, 47) eingelegt sind, und daß mit dem Vergie­ßen auch die feststehenden Kontaktstücke (48, 49) mit den Laschen (39, 40) festgelegt sind.1. Explosion-proof, pressure-proof encapsulated switching chamber, with a double contact point with two fixed contact pieces (48, 49) arranged at a distance from each other, which can be bridged by means of a contact bridge (15) carrying movable contact pieces (28, 29), the fixed contact pieces (48, 49) are led out of the switching chamber and in connecting lugs 46, 47; 87, 88) and the contact bridge (15) can be actuated by means of an actuating plunger (14) which passes through and protrudes from a side wall of the switching chamber in a manner such that it does not ignite, and wherein the switching chamber has a cup-like housing (10) which is connected by means of a cover ( 30) is closed and cast outside the cover (30), characterized in that the cover (30) has recesses (35, 36) on its side facing away from the contact space, into the tabs (39, 40) with the fixed contact pieces formed thereon (48, 49) and the connecting straps (46, 47) are inserted, and that the fixed contact pieces (48, 49) with the straps (39, 40) are fixed with the potting. 2. Schaltkammer nach Anspruch 1, dadurch gekenn­zeichnet, daß die Vertiefungen (35, 36) angenähert eine L-Form bilden, wobei die Laschen (39, 40) der L-Form an­gepaßt sind, und daß die einen Schenkel der L-förmigen Vertiefung bis hin zu einer der beiden Längsseiten des Deckels ragen und dort in einer Aussparung (37, 38) am Deckel (30) münden, wogegen die anderen Schenkel jeweils an den sich gegenüberliegenden Schmalseitenkanten an­schließen.2. Switching chamber according to claim 1, characterized in that the depressions (35, 36) approximately form an L-shape, the tabs (39, 40) being adapted to the L-shape, and in that one leg of the L-shaped depression protrude up to one of the two long sides of the cover and open there in a recess (37, 38) on the cover (30), whereas the other legs each connect to the opposite narrow side edges. 3. Schaltkammer nach Anspruch 2, dadurch gekenn­zeichnet, daß an die L-Form der Laschen (39, 40) jeweils senkrecht dazu verlaufende Abkantungen (42, 43; 44, 45) angeformt sind, wobei die Abkantungen ebenfalls senk­recht zueinander ausgerichtet sind und von der dem Kon­taktraum abgewandten Fläche des Deckels (30) ausgehend den Deckel auf der den Vertiefungen abgewandten und dem Kontaktraum zugewandten Seite überragen.3. Switching chamber according to claim 2, characterized in that on the L-shape of the tabs (39, 40) in each case perpendicularly bevels (42, 43; 44, 45) are formed, the bevels also being oriented perpendicular to one another and by protrude from the surface of the cover (30) facing away from the contact space, projecting beyond the cover on the side facing away from the depressions and facing the contact space. 4. Schaltkammer nach Anspruch 3, dadurch gekenn­zeichnet, daß an den in der Längsseite mündenden Schen­keln der Vertiefungen (35, 36) die Aussparungen (37, 38) anschließen, die von der Kante (50) aus ins Deckelinnere zurückspringen und die die festen Kontaktstücke (48, 49) tragenden Abkantungen der Laschen (42, 43) aufnehmen.4. Switching chamber according to claim 3, characterized in that the recesses (37, 38) connect to the legs in the longitudinal side of the recesses (35, 36) which spring back from the edge (50) into the lid interior and which are the fixed contact pieces (48, 49) load-bearing folds of the tabs (42, 43). 5. Schaltkammer nach einem oder mehreren der vori­gen Ansprüche, dadurch gekennzeichnet, daß an der Außen­fläche der die Kanten der schmalen Seiten übergreifenden Abkantungen (44, 45) Anschlußlaschen (46, 47) für An­schlußklemmen angeformt sind, welche Anschlußlaschen (46, 47) senkrecht zu den Abkantungen (44, 45) ausge­richtet sind.5. Switching chamber according to one or more of the preceding claims, characterized in that on the outer surface of the edges overlapping the edges of the narrow sides (44, 45) connecting lugs (46, 47) for connecting terminals are formed, which connecting lugs (46, 47) perpendicular are aligned with the folds (44, 45). 6. Schaltkammer nach einem oder mehreren der vori­gen Ansprüche, dadurch gekennzeichnet, daß an den Sei­tenkanten des Deckels verlaufende Schneidekanten (50, 51) vorgesehen sind, die ins Innere des napfartigen Ge­hauses (10) eingreifen und ggf. zur Abdichtung gegen Eindringen von Gießharz in den Kontaktraum dienen.6. Switching chamber according to one or more of the preceding claims, characterized in that on the side edges of the cover extending cutting edges (50, 51) are provided which engage in the interior of the cup-like housing (10) and, if necessary, for sealing against the ingress of casting resin serve the contact space. 7. Kupplungssteckdose insbesondere mit den Schalt­kammern nach einem oder mehreren der vorigen Ansprüche, dadurch gekennzeichnet, daß die Kupplungssteckdose ein Gehäuse (61) aufweist, welches Aufnahmekammern (60) zur Aufnahme der Schaltkammern enthält, und daß die Schalt­kammern so in die Aufnahmekammern (60) eingesetzt sind, dß die Stößel (14) der Schaltkammern radial nach außen weisend angeordnet sind, und daß ein Nockenzylinder (67) vorgesehen ist, der eine Nockenfläche (82) aufweist, mit der die Stößel (14) und die Schaltkammern umfaßt sind.7. coupling socket in particular with the switching chambers according to one or more of the preceding claims, characterized in that the coupling socket Housing (61) which contains receiving chambers (60) for receiving the switching chambers, and that the switching chambers are inserted into the receiving chambers (60), that the plunger (14) of the switching chambers are arranged radially outward, and that a cam cylinder (67) is provided, which has a cam surface (82) with which the plunger (14) and the switching chambers are included. 8. Kupplungssteckdose nach einem der vorigen An­sprüche, dadurch gekennzeichnet, daß das Gehäuse (61) eine Gehäuseplatte (75) aufweist, an deren einer Seite Vorsprünge (78) in axialer Richtung vorspringen, die die Aufnahmeräume (60) für die Schaltkammern in Umfangsrich­tung begrenzen.8. Coupling socket according to one of the preceding claims, characterized in that the housing (61) has a housing plate (75), on one side of which protrusions (78) project in the axial direction, which limit the receiving spaces (60) for the switching chambers in the circumferential direction . 9. Kupplungssteckdose nach einem der vorigen An­sprüche, dadurch gekennzeichnet, daß die sich gegenüber­liegenden Seitenwände der Vorsprünge (78) axial verlau­fende Nuten (79, 80) tragen, die mit an den Schaltkam­meraußenflächen angeformten Nasen (53, 54) zur Führung der Schaltkammern zusammenwirken.9. Coupling socket according to one of the preceding claims, characterized in that the opposite side walls of the projections (78) carry axially extending grooves (79, 80) which cooperate with molded on the switching chamber outer surfaces lugs (53, 54) for guiding the switching chambers.
EP89106227A 1988-04-16 1989-04-08 Electrical installation equipment Expired - Lifetime EP0338353B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812732 1988-04-16
DE3812732A DE3812732A1 (en) 1988-04-16 1988-04-16 ELECTRICAL INSTALLATION DEVICE

Publications (3)

Publication Number Publication Date
EP0338353A2 true EP0338353A2 (en) 1989-10-25
EP0338353A3 EP0338353A3 (en) 1990-08-16
EP0338353B1 EP0338353B1 (en) 1994-06-01

Family

ID=6352145

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Application Number Title Priority Date Filing Date
EP89106227A Expired - Lifetime EP0338353B1 (en) 1988-04-16 1989-04-08 Electrical installation equipment

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EP (1) EP0338353B1 (en)
AT (1) ATE106602T1 (en)
DE (2) DE3812732A1 (en)
ES (1) ES2054917T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253292A1 (en) * 1973-11-30 1975-06-27 Bbc Brown Boveri & Cie Explosion proof coupling plug - nose moves contact switch by external ring movement in coupled state
DE2217218C2 (en) * 1972-04-10 1982-09-02 Siemens AG, 1000 Berlin und 8000 München Contact spring set for an electromagnetic card relay in flat design and method for manufacturing the same
GB2160711A (en) * 1982-04-29 1985-12-24 Bbc Brown Boveri & Cie Explosion-proof or flame-proof electrical switching device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1590624B1 (en) * 1966-10-28 1971-03-11 Stotz Kontakt Gmbh Explosion-proof switch
DE2617606C3 (en) * 1976-04-22 1980-05-14 Brown, Boveri & Cie Ag, 6800 Mannheim Explosion-proof package cam switch
DE3220839C2 (en) * 1982-06-03 1985-04-18 Brown, Boveri & Cie Ag, 6800 Mannheim Explosion-proof or firedamp-proof plug-in device
DE3220915C2 (en) * 1982-06-03 1985-05-23 Brown, Boveri & Cie Ag, 6800 Mannheim Explosion-proof or firedamp-proof package cam switch
DE3220840C2 (en) * 1982-06-03 1985-04-25 Brown, Boveri & Cie Ag, 6800 Mannheim Flameproof, explosion-proof electrical switching device
DE8304932U1 (en) * 1983-02-23 1984-10-31 Kapfer, Karl, 7108 Möckmühl Explosion-proof illuminated switch and illuminated pushbutton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2217218C2 (en) * 1972-04-10 1982-09-02 Siemens AG, 1000 Berlin und 8000 München Contact spring set for an electromagnetic card relay in flat design and method for manufacturing the same
FR2253292A1 (en) * 1973-11-30 1975-06-27 Bbc Brown Boveri & Cie Explosion proof coupling plug - nose moves contact switch by external ring movement in coupled state
GB2160711A (en) * 1982-04-29 1985-12-24 Bbc Brown Boveri & Cie Explosion-proof or flame-proof electrical switching device

Also Published As

Publication number Publication date
ES2054917T3 (en) 1994-08-16
DE58907734D1 (en) 1994-07-07
EP0338353A3 (en) 1990-08-16
ATE106602T1 (en) 1994-06-15
DE3812732A1 (en) 1989-10-26
EP0338353B1 (en) 1994-06-01

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