EP0890971B1 - Cover for contacts for fuses in devices with low voltage high power fuses - Google Patents

Cover for contacts for fuses in devices with low voltage high power fuses Download PDF

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Publication number
EP0890971B1
EP0890971B1 EP98104866A EP98104866A EP0890971B1 EP 0890971 B1 EP0890971 B1 EP 0890971B1 EP 98104866 A EP98104866 A EP 98104866A EP 98104866 A EP98104866 A EP 98104866A EP 0890971 B1 EP0890971 B1 EP 0890971B1
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EP
European Patent Office
Prior art keywords
base plate
fact
cover
cover according
flap
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
EP98104866A
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German (de)
French (fr)
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EP0890971A3 (en
EP0890971A2 (en
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.)
Jean Mueller Elektrotechnische Fabrik GmbH
Original Assignee
Jean Mueller Elektrotechnische Fabrik GmbH
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Filing date
Publication date
Application filed by Jean Mueller Elektrotechnische Fabrik GmbH filed Critical Jean Mueller Elektrotechnische Fabrik GmbH
Publication of EP0890971A2 publication Critical patent/EP0890971A2/en
Publication of EP0890971A3 publication Critical patent/EP0890971A3/en
Application granted granted Critical
Publication of EP0890971B1 publication Critical patent/EP0890971B1/en
Anticipated expiration legal-status Critical
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/20Bases for supporting the fuse; Separate parts thereof
    • H01H85/2045Mounting means or insulating parts of the base, e.g. covers, casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/20Bases for supporting the fuse; Separate parts thereof
    • H01H85/205Electric connections to contacts on the base
    • H01H2085/206Electric connections to contacts on the base being tappable, e.g. terminals on the fuse or base being arranged so as to permit an additional connector to be engaged therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/20Bases for supporting the fuse; Separate parts thereof
    • H01H85/203Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals
    • H01H85/204Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals for low voltage fuses with knife-blade end contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/25Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover

Definitions

  • the invention relates to a cover made of insulating material For fuse contacts arranged in pairs on NH (low-voltage, high-performance) fuse strips or parts, wherein the cover two hood-shaped cover elements for the Fuse contacts and one arranged between the covers Has base plate.
  • Covers serve the contacts and especially on electrical ones Power distribution networks people working in front of the to protect against accidental contact with the contacts.
  • the contacts of such a fuse strip exist each consisting of a pair of resilient elements, between which the Contact knife of a fuse link inserted under pressure can be.
  • the two contact parts are one Contact integrally connected to each other on her lower foot. From the base of these contacts there is a connector for connection with a busbar.
  • Generally are on one Safety bar for the three phases of the three-phase network three pairs of contacts arranged in a row, one contact of the three contact pairs with one Leader is connected while the other three contacts are connected to a busbar and in general to be under tension. Between such a pair of contacts each arranged a fuse link, which with its Contact knife is inserted between the contact surfaces and can also be pulled out of these.
  • a cover of the type mentioned is from DE-OS 39 18 816, known. This is formed in two parts, one Hood and essentially part of a half of the base plate and the other part through the other hood and in the essential other half of the base plate is formed. At the Undersides of the base plate are provided in the area which the respective base plate part in the housing of the fuse block is clickable.
  • the one base plate part is in Area of its end face facing the other base plate part with a substantially semicircular shape Provide projection and it has the other base part appropriately designed recess through which the projection passes. When the base plate part having the projection is removed becomes the assembly connection under the recess for the busbar contact belonging to this fuse link accessible.
  • This connection consists essentially of one with the corresponding busbar contact connected discharge angle, the for example as an L-shaped rail with an elongated hole in the angled L-leg is formed, through which a screw bolt is guided can be so that the L-leg to the associated busbar can be screwed on.
  • a disadvantage of the known cover that when working on Bolts, for example to tighten them, part of the cover, namely the base plate part with the projection the associated hood must be removed, which is usually contact covered by the hood, which is certainly due to voltage can, is freely accessible. The person working in the area of the security line is therefore subject to an increased risk.
  • Another disadvantage is that the cover consists of two parts and therefore in the Assembly or disassembly of the cover always handled two components separately Need to become. The result is that a part remains loose and this cannot rule out that a part is lost or not assembled.
  • From GB 1 183 115 A is an electrical device for recording known of a backup.
  • the device has an insulating Material existing box with floor and perpendicular to it as well as in walls arranged at right angles to one another. With the floor Fuse contacts attached, with supply and discharge lines to the fuse contacts lead the openings in opposite walls of the Enforce box.
  • the floor is screwed to an earthing bar.
  • the clear cross section of the box is penetrated by an insulating one Material existing plate. This is double opposite angled.
  • a central section of the plate is parallel to the floor the box positioned and screwed to the floor. Further, in parallel sections arranged to the opposite walls of the box the plate cover the fuse contacts on their assigned Lines away from the side.
  • DE 35 44 534 A1 discloses a switchable NH fuse with a branching device known. There is the push-through opening for the finger contacts a locking plate associated with the branching device.
  • DE 93 09 654 U is a fuse disconnector with a cover for Receiving contacts on a contact carrier on which the cover over a locking connection is held described.
  • DE 43 17 052 A1 relates a protective cap for a NH fuse contact.
  • the problem is solved with a cover of the type mentioned in that the base plate is provided with a closable opening is.
  • the design of the cover according to the invention ensures that this always covers the pair of fuse contacts, regardless of whether Work in the area of the bolt must be carried out. So that the bolt is accessible, it is only required to make the opening accessible. In the between the two hoods formed opening space can then the screw bolt can be applied unhindered. Are the Assembly work finished, it is only necessary to open the opening to close the base plate. The two fuse contacts and the area between them are then safe to touch covered.
  • the cover is as Plastic injection molded part.
  • the cover is in one piece is trained. As a result, it can be handled as a unit are what their assembly and disassembly much easier. All functional elements of the cover are in one component housed, making their handling particularly easy.
  • the base plate is preferably a flap for closing assigned to the opening.
  • part of the cover with a the flap is connected to the base plate.
  • the one-piece cover thus also extends to the flap with it not as a separate and loosely connected to the base plate
  • Removable component is formed from the base plate. forms the flap part of the cover it is considered appropriate viewed when in kind of a film hinge with the base plate connected is. Without the functionality of the flap too can affect this due to the design of the hinge enough times to open or close the opening in the base plate can be pivoted.
  • locking means for locking Flap and base plate with the base plate opening closed are provided. This ensures that the flap does not swing into the open position unintentionally.
  • the flap is useful on its side facing away from the flap bearing lockable with the base plate. Further are preferred Latching means provided for latching the flap and base plate in the open position of the flap. In particular, the flap should Area of the flap bearing with the base plate or at least an approach connected to the base plate can be locked.
  • the respective hood is expediently designed like a cage. she points at least in its area facing the base plate Ventilation slots for removing the fuse during operation resulting heat loss.
  • the respective hood is expedient on its other hood facing side and its side facing away from the base plate with an angle slot for inserting the contact knife fuse insert to be inserted into the fuse strip or lower part provided, the slot in its the Slit area facing away from the base plate has a smaller width has than the thickness of the contact knife.
  • a dimensioning aid is used for positioning Switch on, which allows the operator with a defined force the respective contact blade of the NH fuse link with respect the cover and thus that behind the respective hood Align fuse contact. During the switching process the hood in this slot area widened and the switching knife guided past the position aid.
  • the cover with the fuse contacts is preferably connected, in particular it is clipped onto this.
  • the cover resilient projections be, for clipping the cover on the associated Safety contact, the corresponding recesses for engagement which has protrusions.
  • a further development provides that at least one of the hoods an opening for inserting a contact element has separate current outlet, the contact element of the separate current outlet on a contact knife one in the Fuse contacts plugged in NH fuse link is.
  • a cover element is preferably in the hood for the contact element of the separate pluggable into the hood Integrated power outlet.
  • Such a separate power outlet the is also known in practice as a piggyback tap usually the purpose of a temporary power tap enable, for example to operate construction sites, notch or fair events, etc. Is the current tapped from the feed-in side, this is additionally secured.
  • the projections can be designed so that it used separate power outlet with its contact element detented. There is thus an unintentional loosening of the separate one Current outlet, for example due to the contact element initiated vibrations, effectively prevented.
  • the power plate on both sides between the two covers with removable cover flaps is provided.
  • These can be found for the special area of application the sliding separation of a rail system use. in this connection are located below adjacent covers, in Busbars ending at a distance from one another by means of a Slidable in the longitudinal direction of the respective cover plate Connecting element electrically connectable. This connector becomes accessible if the cover flaps are adjacent Covers broken out of the cover plate or when in Kind of a film hinge are formed from the level of Cover plate can be swung out, so that there the area below the two covers for connecting or disconnecting the is accessible to both busbars.
  • Figure 7 illustrates that the cover 1 of the invention is designed as a one-piece injection molded part made of plastic, a base plate 2 and two themselves in the area of their ends this has extending hoods 3.
  • the hoods 3 are in the Area of the base plate arranged perpendicular to this Provide ventilation slots 4.
  • the respective hood 3 has their side facing the other hood 3 and on their Base plate 2 facing away from an angle slot 5 through each a contact knife 6 of an NH fuse link 7 can be inserted into the hood 3.
  • the cover 1 serves covering two fuse contacts, not shown, by means of the hoods 3 and the one below the cover 1 Area of an NH fuse block or an NH lower part.
  • the fuse link 7 has an insulating body 30.
  • the penetrating the insulating body 30 Fusible conductors are connected to the contact blades 6 and by means of the cover plates 28 with the insulating body 30 screwed.
  • the specific structure of the cover 1 is shown in FIGS. 1 to 6 illustrates:
  • the respective angular slot 5 has one Slot area 5a extending parallel to the base plate 2 and a slot area extending perpendicular to the base plate 2 5b.
  • the angular slot 5 is in the slot area 5b slightly wider than the thickness of the contact knife 6.
  • the slot 5 runs in the area of the slot area 5a slightly conical in the direction of the slot area 5b to, the tapered end of the slot portion 5b a has a smaller width than the thickness of the contact knife 6.
  • the tapered area is shown as bead 8, which for the with the fuse link 7 workers the function of a Has positioning aid.
  • FIGS. 7 to 10 The variant of the cover shown in FIGS. 7 to 10 with a combined piggyback pick-off is used in addition to the Representation of Figures 1 to 6 referenced.
  • a hood 3 illustrates that this on their the other hood 3 facing side two resilient projections 19, between which the upper part of the vertical Slot area 5b is formed.
  • the hood 3 remains a gap 22 for inserting one with a NH fuse provided power outlet 24, the NH fuse due to the enclosing housing 25 only in the area whose tabs 26 are visible.
  • reference numeral 27 is the electrical cable outgoing from the outlet 24 denotes.

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  • Fuses (AREA)

Abstract

The cover is formed with two cap sections Ä3Ü separated by a gap and produced in an insulating material. The caps are formed on a base plate and have access slots Ä5aÜ at the top. These are sized to provide access for the contact pins of a fuse element with engage the power contacts enclosed by the cover . A centre section has a flap Ä11Ü that provides an access point.

Description

Die Erfindung betrifft eine Abdeckung aus isolierendem Material für paarweise angeordnete Sicherungskontakte an NH (Niederspannungs-Hochleistungs)-Sicherungsleisten oder -unterteilen, wobei die Abdeckung zwei haubenförmige Abdeckelemente für die Sicherungskontakte und eine zwischen den Abdeckhauben angeordnete Grundplatte aufweist. The invention relates to a cover made of insulating material For fuse contacts arranged in pairs on NH (low-voltage, high-performance) fuse strips or parts, wherein the cover two hood-shaped cover elements for the Fuse contacts and one arranged between the covers Has base plate.

Abdeckungen dienen dazu, die Kontakte und vor allem an elektrischen Stromverteilungsnetzen arbeitende Personen vor der zufälligen Berührung mit den Kontakten zu schützen. Hierzu gibt es beispielsweise großflächige Abdeckungen, welche sämtliche Kontakte einer Sicherungsleiste oder auch mehrerer nebeneinander montierter Sicherungsleisten gleichzeitig abdecken. Es sind auch Abdeckungen bekannt, welche haubenartig über die einzelnen Kontakte bzw. Kontaktpaare gestülpt werden.Covers serve the contacts and especially on electrical ones Power distribution networks people working in front of the to protect against accidental contact with the contacts. There are there are, for example, large-area covers, all of which Contacts of a fuse strip or several side by side Cover the assembled fuse strips at the same time. They are too Covers known, which are hood-like over the individual Contacts or contact pairs can be turned over.

Dabei bestehen die Kontakte einer solchen Sicherungsleiste jeweils aus einem Paar federnder Elemente, zwischen die das Kontaktmesser eines Sicherungseinsatzes unter Druck eingeschoben werden kann. Im allgemeinen sind die beiden Kontaktteile eines Kontaktes an ihrem unteren Fuß einstückig miteinander verbunden. Vom Fuß dieser Kontakte geht ein Anschlußstück zur Verbindung mit einer Stromschiene aus. Im allgemeinen sind auf einer Sicherungsleiste für die drei Phasen des Drehstromnetzes jeweils drei Paare von Kontakten in einer Reihe hintereinander angeordnet, wobei jeweils ein Kontakt der drei Kontaktpaare mit einem Abgangsleiter verbunden ist, während die anderen drei Kontakte mit je einer Sammelschiene verbunden sind und im allgemeinen unter Spannung stehen. Zwischen einem solchen Kontaktpaar ist jeweils ein Sicherungseinsatz angeordnet, welcher mit seinen Kontaktmessern zwischen die Kontaktflächen eingeschoben wird und aus diesen auch wieder herausgezogen werden kann.The contacts of such a fuse strip exist each consisting of a pair of resilient elements, between which the Contact knife of a fuse link inserted under pressure can be. In general, the two contact parts are one Contact integrally connected to each other on her lower foot. From the base of these contacts there is a connector for connection with a busbar. Generally are on one Safety bar for the three phases of the three-phase network three pairs of contacts arranged in a row, one contact of the three contact pairs with one Leader is connected while the other three contacts are connected to a busbar and in general to be under tension. Between such a pair of contacts each arranged a fuse link, which with its Contact knife is inserted between the contact surfaces and can also be pulled out of these.

Eine Abdeckung der eingangs genannten Art ist aus der DE-OS 39 18 816, bekannt. Diese ist zweiteilig ausgebildet, wobei eine Haube und im wesentlichen eine Hälfte der Grundplatte ein Teil darstellt und das andere Teil durch die andere Haube und die im wesentlichen andere Hälfte der Grundplatte gebildet wird. An der Unterseite der Grundplatte sind Rastnasen vorgesehen, im Bereich derer das jeweilige Grundplattenteil in dem Gehäuse der Sicherungsleiste rastierbar ist. Das eine Grundplattenteil ist im Bereich seiner dem anderen Grundplattenteil zugewandten Stirnseite mit einem im wesentlichen halbkreisförmig ausgebildeten Vorsprung versehen und es weist das andere Grundplattenteil eine entsprechend gestaltete Aussparung auf, die der Vorsprung durchsetzt. Bei Entfernung des den Vorsprung aufweisenden Grundplattenteiles wird der unter der Aussparung liegende Montageanschluß für den zu diesem Sicherungseinsatz gehörenden Sammelschienenkontakt zugänglich. Dieser Anschluß besteht im wesentlichen aus einem mit dem entsprechenden Sammelschienenkontakt verbundenen Ableitwinkel, der beispielsweise als L-förmige Schiene mit einem Langloch in dem abgewinkelten L-Schenkel ausgebildet ist, durch den ein Schraubbolzen geführt werden kann, so daß der L-Schenkel an die zugehörige Sammelschiene angeschraubt werden kann.A cover of the type mentioned is from DE-OS 39 18 816, known. This is formed in two parts, one Hood and essentially part of a half of the base plate and the other part through the other hood and in the essential other half of the base plate is formed. At the Undersides of the base plate are provided in the area which the respective base plate part in the housing of the fuse block is clickable. The one base plate part is in Area of its end face facing the other base plate part with a substantially semicircular shape Provide projection and it has the other base part appropriately designed recess through which the projection passes. When the base plate part having the projection is removed becomes the assembly connection under the recess for the busbar contact belonging to this fuse link accessible. This connection consists essentially of one with the corresponding busbar contact connected discharge angle, the for example as an L-shaped rail with an elongated hole in the angled L-leg is formed, through which a screw bolt is guided can be so that the L-leg to the associated busbar can be screwed on.

Nachteilig ist bei der bekannten Abdeckung, daß beim Arbeiten am Schraubbolzen, beispielsweise um diesen nachzuziehen, ein Teil der Abdeckung, nämlich das den Vorsprung aufweisende Grundplattenteil mit der dazugehörigen Haube entfernt werden muß, womit der üblicherweise von der Haube abgedeckte Kontakt, der durchaus an Spannung liegen kann, frei zugänglich ist. Der im Bereich der Sicherungsleite Arbeitende unterliegt damit einer erhöhten Gefährdung. Nachteilig ist ferner, daß die Abdeckung aus zwei Teilen besteht und demnach bei der Montage bzw. Demontage der Abdeckung immer zwei Bauteile separat gehandhabt werden müssen. Die Folge ist, daß ein Teil lose verbleibt und hierdurch nicht ausgeschlossen werden kann, daß ein Teil verloren geht bzw. nicht montiert wird.A disadvantage of the known cover that when working on Bolts, for example to tighten them, part of the cover, namely the base plate part with the projection the associated hood must be removed, which is usually contact covered by the hood, which is certainly due to voltage can, is freely accessible. The person working in the area of the security line is therefore subject to an increased risk. Another disadvantage is that the cover consists of two parts and therefore in the Assembly or disassembly of the cover always handled two components separately Need to become. The result is that a part remains loose and this cannot rule out that a part is lost or not assembled.

Aus der GB 1 183 115 A ist eine elektrische Einrichtung zur Aufnahme einer Sicherung bekannt. Die Einrichtung weist ein aus isolierendem Material bestehenden Kasten mit Boden und senkrecht hierzu sowie im rechten Winkel zueinander angeordnete Wänden auf. Mit dem Boden sind Sicherungskontakte befestigt, wobei Zu- und Ableitungen zu den Sicherungskontakten führen, die Öffnungen in gegenüberliegenden Wänden des Kastens durchsetzen. Der Boden ist mit einer Erdungsschiene verschraubt. Den lichten Querschnitt des Kastens durchsetzt eine aus isolierendem Material bestehende Platte. Diese ist zweifach gegensinnig abgewinkelt. Ein zentraler Abschnitt der Platte ist parallel zum Boden des Kastens positioniert und mit dem Boden verschraubt. Weitere, parallel zu den gegenüberliegenden Wandungen des Kastens angeordnete Abschnitte der Platte decken die Sicherungskontakte auf ihrer dem zugeordneten Leitungen abgewandten Seite ab. An diese senkrechten Wandungsabschnitte schließen sich parallel zum Boden positionierte Wandungsabschnitte der Platte an, die die beiden Sicherungskontakt oben abdecken. Diese oberen Abschnitte der Platte sind mit schlitzförmigen Aussparungen zum Durchstecken der Kontakte der Sicherung auf die Sicherungskontakte versehen. Der oberhalb der Platte befindliche Bereich des Kastens nimmt demzufolge die Sicherung auf. Zum verschrauben von Kasten und geerdeter Schiene bzw. Lösen des Kastens von der geerdeten Schiene ist eine Schraube vorgesehen, die durch eine zentrale, verschließbare Öffnung in der Platte zugänglich ist. - Die aus dieser Schrift bekannte Einrichtung betrifft somit keine NH-Sicherungsleiste bzw. kein NH-Sicherungsunterteil, das zwei haubenförmige Abdeckelemente für die Sicherungskontakte und eine zwischen den Abdeckhauben angeordnete Grundplatte aufweist.From GB 1 183 115 A is an electrical device for recording known of a backup. The device has an insulating Material existing box with floor and perpendicular to it as well as in walls arranged at right angles to one another. With the floor Fuse contacts attached, with supply and discharge lines to the fuse contacts lead the openings in opposite walls of the Enforce box. The floor is screwed to an earthing bar. The clear cross section of the box is penetrated by an insulating one Material existing plate. This is double opposite angled. A central section of the plate is parallel to the floor the box positioned and screwed to the floor. Further, in parallel sections arranged to the opposite walls of the box the plate cover the fuse contacts on their assigned Lines away from the side. At these vertical wall sections close wall sections positioned parallel to the floor the plate that has the two fuse contacts on top cover. These top sections of the plate are slit-shaped Cutouts for inserting the contacts of the fuse onto the fuse contacts Mistake. The area above the plate the box therefore takes up the fuse. For screwing Box and earthed rail or detaching the box from the earthed Rail is a screw provided by a central, lockable Opening in the plate is accessible. - The one from this Font known device thus does not affect NH fuse block or no NH fuse base, the two hood-shaped cover elements for the fuse contacts and one between the covers Has base plate.

Aus der DE 35 44 534 A1 ist eine schaltbare NH-Sicherung mit Abzweigeinrichtung bekannt. Dort ist der Durchstecköffnung für die Fingerkontakte der Abzweigvorrichtung eine Verschlußplatte zugeordnet. In der DE 93 09 654 U ist ein Sicherungstrennschalter mit einer Abdeckung für Aufnahmekontakte auf einem Kontaktträger, an dem die Abdeckung über eine Rastverbindung gehalten ist, beschrieben. Die DE 43 17 052 A1 betrifft eine Schutzkappe für einen NH-Sicherungskontakt.DE 35 44 534 A1 discloses a switchable NH fuse with a branching device known. There is the push-through opening for the finger contacts a locking plate associated with the branching device. In the DE 93 09 654 U is a fuse disconnector with a cover for Receiving contacts on a contact carrier on which the cover over a locking connection is held described. DE 43 17 052 A1 relates a protective cap for a NH fuse contact.

Vor diesem Hintergrund ist es Aufgabe der vorliegenden Erfindung, eine Abdeckung der eingangs genannten Art so weiter zu bilden, daß sie eine optimale Funktionalität, Gestaltung und Handhabung aufweist.Against this background, it is an object of the present invention, a Cover of the type mentioned so that they form a has optimal functionality, design and handling.

Gelöst wird die Aufgabe bei einer Abdeckung der eingangs genannten Art dadurch, daß die Grundplatte mit einer verschließbaren Öffnung versehen ist.The problem is solved with a cover of the type mentioned in that the base plate is provided with a closable opening is.

Die erfindungsgemäße Gestaltung der Abdeckung stellt sicher, daß diese immer das Sicherungskontaktpaar abdeckt, unabhängig davon, ob Arbeiten im Bereich des Schraubbolzens durchgeführt werden müssen. Damit der Schraubbolzen zugänglich wird, ist es nur erforderlich, die Öffnung zugänglich zu machen. In dem zwischen den beiden Abdeckhauben gebildeten Öffnungsraum kann dann ungehindert der Schraubbolzen beaufschlagt werden. Sind die Montagearbeiten beendet, ist es nur notwendig, die Öffnung in der Grundplatte zu verschließen. Die beiden Sicherungskontakte und der zwischen diesen befindliche Bereich sind dann berührungssicher abgedeckt. Vorzugsweise ist die Abdeckung als Kunststoffspritzgußteil ausgebildet.The design of the cover according to the invention ensures that this always covers the pair of fuse contacts, regardless of whether Work in the area of the bolt must be carried out. So that the bolt is accessible, it is only required to make the opening accessible. In the between the two hoods formed opening space can then the screw bolt can be applied unhindered. Are the Assembly work finished, it is only necessary to open the opening to close the base plate. The two fuse contacts and the area between them are then safe to touch covered. Preferably, the cover is as Plastic injection molded part.

Es ist insbesondere vorgesehen, daß die Abdeckung einteilig ausgebildet ist. Sie kann infolgedessen als Einheit gehandhabt werden, was deren Montage bzw. Demontage wesentlich vereinfacht. Alle Funktionselemente der Abdeckung sind in einem Bauteil untergebracht, womit deren Handhabung besonders einfach ist.It is particularly provided that the cover is in one piece is trained. As a result, it can be handled as a unit are what their assembly and disassembly much easier. All functional elements of the cover are in one component housed, making their handling particularly easy.

Vorzugsweise ist der Grundplatte eine Klappe zum Verschließen der Öffnung zugeordnet. Gemäß einer besonderen Gestaltung ist allerdings vorgesehen, daß Bestandteil der Abdeckung eine mit der Grundplatte verbundene Klappe ist. Die Einteiligkeit der Abdeckung erstreckt sich damit auch auf die Klappe, die damit nicht als separates, mit der Grundplatte lose verbundenes und von der Grundplatte entfernbares Bauteil ausgebildet ist. Bildet die Klappe Bestandteil der Abdeckung wird es als zweckmäßig angesehen, wenn sie in Art eines Filmscharniers mir der Grundplatte verbunden ist. Ohne die Funktionalität der Klappe zu beeinträchtigen, kann diese aufgrund der Gestaltung des Scharnieres ausreichend oft zum Öffnen bzw. Schließen der Öffnung in der Grundplatte geschwenkt werden. In diesem Zusammenhang sieht eine besondere Gestaltung vor, daß Rastmittel zum Verrasten von Klappe und Grundplatte bei geschlossener Öffnung der Grundplatte vorgesehen sind. Dadurch ist sichergestellt, daß die Klappe nicht ungewollt in die geöffnete Stellung schwenkt. Die Klappe ist zweckmäßig auf ihrer der Klappenlagerung abgewandten Seite mit der Grundplatte rastierbar. Vorzugsweise sind ferner weitere Rastmittel vorgesehen, zum Verrasten von Klappe und Grundplatte in Offenstellung der Klappe. Insbesondere sollte die Klappe im Bereich der Klappenlagerung mit der Grundplatte oder mindestens einem mit dem Grundplatte verbundenen Ansatz rastierbar sein. The base plate is preferably a flap for closing assigned to the opening. According to a special design however provided that part of the cover with a the flap is connected to the base plate. The one-piece cover thus also extends to the flap with it not as a separate and loosely connected to the base plate Removable component is formed from the base plate. forms the flap part of the cover it is considered appropriate viewed when in kind of a film hinge with the base plate connected is. Without the functionality of the flap too can affect this due to the design of the hinge enough times to open or close the opening in the base plate can be pivoted. In this context sees a special design that locking means for locking Flap and base plate with the base plate opening closed are provided. This ensures that the flap does not swing into the open position unintentionally. The flap is useful on its side facing away from the flap bearing lockable with the base plate. Further are preferred Latching means provided for latching the flap and base plate in the open position of the flap. In particular, the flap should Area of the flap bearing with the base plate or at least an approach connected to the base plate can be locked.

Die Gestaltung der Abdeckung dahingehend, daß Rastmittel auch zum Verrasten von Klappe und Grundplatte in der Offenstellung der Klappe vorgesehen sind, ermöglicht es, die Abdeckung mit in Offenstellung befindlicher Klappe zu vertreiben, so daß die die Montage vornehmende Person unmittelbar die Verschraubung des Schraubbolzens vornehmen kann. Lose Teile sind hierbei nicht vorhanden, da die Klappe fest mit der Grundplatte verbunden ist. Nach erfolgter Montage wird die Klappe in die Schließstellung geschwenkt, wo sie erneut mit der Grundplatte verrastet.The design of the cover in that locking means too for locking the flap and base plate in the open position the flap are provided, allows the cover with in To expose the open position of the flap, so that the Assembly person immediately screwing the Can make bolt. There are no loose parts here available, since the flap is firmly connected to the base plate. After assembly, the flap is in the closed position swiveled where it snaps into place with the base plate.

Zweckmäßig ist die jeweilige Haube käfigartig ausgebildet. Sie weist zumindest in ihrem der Grundplatte zugewandten Bereich Belüftungsschlitze zum Abführen der beim Betrieb der Sicherung entstehenden Verlustwärme auf.The respective hood is expediently designed like a cage. she points at least in its area facing the base plate Ventilation slots for removing the fuse during operation resulting heat loss.

Zweckmäßig ist die jeweilige Haube auf ihrer der anderen Haube zugewandten Seite und ihrer der Grundplatte abgewandten Seite mit einem Winkelschlitz zum Einführen des Kontaktmessers eines in die Sicherungsleiste bzw. -unterteil einzusetzenden Sicherungseinsatzes versehen, wobei der Schlitz in seinem der Grundplatte abgewandten Schlitzbereich eine geringere Breite aufweist, als die Stärke des Kontaktmessers. Aufgrund dieser Stärkendimensionierung ergibt sich eine Positionierhilfe beim Einschalten, die es dem Bediener erlaubt, mit definierter Kraft das jeweilige Kontaktmesser des NH-Sicherungseinsatzes bezüglich der Abdeckung und damit des hinter der jeweiligen Haube befindlichen Sicherungskontaktes auszurichten. Beim Schaltvorgang wird die Haube in diesem Schlitzbereich geweitet und das Schaltmesser an der Positionshilfe vorbeigeführt.The respective hood is expedient on its other hood facing side and its side facing away from the base plate with an angle slot for inserting the contact knife fuse insert to be inserted into the fuse strip or lower part provided, the slot in its the Slit area facing away from the base plate has a smaller width has than the thickness of the contact knife. Based on these A dimensioning aid is used for positioning Switch on, which allows the operator with a defined force the respective contact blade of the NH fuse link with respect the cover and thus that behind the respective hood Align fuse contact. During the switching process the hood in this slot area widened and the switching knife guided past the position aid.

Vorzugsweise ist die Abdeckung mit den Sicherungskontakten verbunden, insbesondere wird sie auf diese aufgeklippst. Hierzu können in die jeweilige Haube federnde Vorsprünge integriert sein, zum Aufklippsen der Abdeckung auf den dieser zugeordneten Sicherungskontakt, der entsprechende Ausnehmungen zum Eingriff der Vorsprünge aufweist. The cover with the fuse contacts is preferably connected, in particular it is clipped onto this. For this can be integrated into the respective hood resilient projections be, for clipping the cover on the associated Safety contact, the corresponding recesses for engagement which has protrusions.

Eine Weiterbildung sieht vor, daß mindestens eine der Hauben eine Öffnung zum Einstecken eines Kontaktelementes eines separaten Stromabganges aufweist, wobei das Kontaktelement des separaten Stromabganges auf ein Kontaktmesser eines in die Sicherungskontakte eingesteckten NH-Sicherungseinsatzes aufsteckbar ist. Vorzugsweise ist in die Haube ein Abdeckelement für das in die Haube steckbare Kontaktelement des separaten Stromabganges integriert. Ein solcher separater Stromabgang, der in der Praxis auch als Huckepack-Abgriff bezeichnet wird, dient in aller Regel dem Zweck, einen vorübergehenden Stromabgriff zu ermöglichen, beispielsweise zum Betreiben von Baustellen, Kerb- bzw. Kirmesveranstaltungen usw.. Erfolgt der Stromabgriff von der Einspeisseite, ist dieser zusätzlich abgesichert. Zur Bewerkstelligung des Huckepack-Abgriffes sind vorzugsweise zumindest in dieser Haube auf ihrer der anderen Haube zugewandten Seite mindestens zwei federnde Vorsprünge integriert, wobei zwischen dem freien Ende der federnden Vorsprünge und der Deckfläche der Haube ein Spalt zum Einführen des Kontaktelementes des Stromabganges gebildet ist. Wird das Kontaktelement des Stromabganges vom Kontaktmesser des NH-Sicherungseinsatzes getrennt, federn die Vorsprünge zurück und es reduziert sich die Breite des Spaltes, so daß die Haube in diesem Bereich fingersicher ist. Mittels der federnden Vorsprünge wird im übrigen das Kontaktelement des Stromabganges geklemmt. Zusätzlich kann mindestens einer der Vorsprünge so gestaltet sein, daß er bei eingesetztem separaten Stromabgang mit dessen Kontaktelement rastiert. Es wird somit ein unbeabsichtigtes Lösen des separaten Stromabganges, beispielsweise aufgrund in das Kontaktelement eingeleiteter Vibrationen, wirksam verhindert.A further development provides that at least one of the hoods an opening for inserting a contact element has separate current outlet, the contact element of the separate current outlet on a contact knife one in the Fuse contacts plugged in NH fuse link is. A cover element is preferably in the hood for the contact element of the separate pluggable into the hood Integrated power outlet. Such a separate power outlet, the is also known in practice as a piggyback tap usually the purpose of a temporary power tap enable, for example to operate construction sites, notch or fair events, etc. Is the current tapped from the feed-in side, this is additionally secured. to Making the piggyback tap are preferred at least in this hood on her facing the other hood Side integrated at least two resilient projections, wherein between the free end of the resilient projections and the Cover surface of the hood a gap for inserting the contact element the current outlet is formed. Will the contact element of the Current outlet from the contact knife of the NH fuse link separated, the projections spring back and the is reduced Width of the gap so that the hood is finger-safe in this area is. By means of the resilient projections, the rest of the Contact element of the current outlet clamped. In addition can at least one of the projections should be designed so that it used separate power outlet with its contact element detented. There is thus an unintentional loosening of the separate one Current outlet, for example due to the contact element initiated vibrations, effectively prevented.

Es kann ferner vorgesehen sein, daß die Stromplatte beidseitig zwischen den beiden Abdeckungen mit entfernbaren Abdecklappen versehen ist. Diese finden für den speziellen Anwendungsbereich der Schiebetrennung eines Schienensystems Verwendung. Hierbei sind die unterhalb benachbarter Abdeckungen angeordneten, in Abstand voneinander endenden Sammelschienen mittels eines in Längsrichtung der jeweiligen Abdeckplatte verschiebbaren Verbindungselementes elektrisch verbindbar. Dieses Verbindungselement wird zugänglich, wenn die Abdecklappen benachbarter Abdeckungen aus der Abdeckplatte ausgebrochen oder, wenn sie in Art eines Filmscharnieres ausgebildet sind, aus der Ebene der Abdeckplatte ausgeschwenkt werden, so daß dort der Bereich unterhalb der beiden Abdeckungen zum Verbinden bzw. Trennen der beiden Sammelschienen zugänglich wird.It can also be provided that the power plate on both sides between the two covers with removable cover flaps is provided. These can be found for the special area of application the sliding separation of a rail system use. in this connection are located below adjacent covers, in Busbars ending at a distance from one another by means of a Slidable in the longitudinal direction of the respective cover plate Connecting element electrically connectable. This connector becomes accessible if the cover flaps are adjacent Covers broken out of the cover plate or when in Kind of a film hinge are formed from the level of Cover plate can be swung out, so that there the area below the two covers for connecting or disconnecting the is accessible to both busbars.

Weitere Merkmale der Erfindung sind in der Beschreibung der Figuren und den Figuren selbst dargestellt, wobei bemerkt wird, daß alle Einzelmerkmale und alle Kombinationen von Einzelmerkmalen erfindungswesentlich sind.Further features of the invention are in the description of the Figures and the figures themselves, it being noted that all individual characteristics and all combinations of individual characteristics are essential to the invention.

In den Figuren ist die Erfindung anhand eines Ausführungsbeispieles dargestellt, ohne hierauf beschränkt zu sein. Es stellt dar:

Figur 1
eine räumliche Ansicht der erfindungsgemäßen Abdeckung bei teilweise geöffneter Klappe,
Figur 2
einen Schnitt durch die Abdeckung gemäß der Linie A-A in Figur 1, bei vollständig geöffneter Klappe,
Figur 3
einen Schnitt gemäß Figur 2 bei geschlossener Klappe,
Figur 4
eine Seitenansicht der in Figur 1 gezeigten Abdeckung,
Figur 5
eine Draufsicht der in Figur 1 gezeigten Abdeckung,
Figur 6
einen Schnitt gemäß der Linie A-A in Figur 1 bzw. Figur 5 durch die Abdeckung, somit bei teilweise geöffneter Klappe,
Figur 7
eine räumliche Ansicht der Abdeckung mit NH-Sicherungseinsatz und Huckepack-Abgriff, in einer Explosionsdarstellung,
Figur 8
die in Figur 7 gezeigten Teile in zusammengebautem Zustand,
Figur 9
die in Figur 7 gezeigten Teile in einer Seitenansicht nach dem Einsetzen des NH-Sicherungseinsatzes in die abgedeckten Sicherungskontakte und
Figur 10
eine Seitenansicht der in Figur 7 gezeigten, ineinandergesteckten Teile.
In the figures, the invention is illustrated using an exemplary embodiment, without being limited to this. It shows:
Figure 1
3 shows a spatial view of the cover according to the invention with the flap partially open,
Figure 2
2 shows a section through the cover according to line AA in FIG. 1, with the flap fully open,
Figure 3
3 shows a section according to FIG. 2 with the flap closed,
Figure 4
2 shows a side view of the cover shown in FIG. 1,
Figure 5
2 shows a top view of the cover shown in FIG. 1,
Figure 6
5 shows a section along line AA in FIG. 1 or FIG. 5 through the cover, thus with the flap partially open,
Figure 7
3 shows a spatial view of the cover with NH fuse link and piggyback tap, in an exploded view,
Figure 8
the parts shown in Figure 7 in the assembled state,
Figure 9
the parts shown in Figure 7 in a side view after inserting the NH fuse link in the covered fuse contacts and
Figure 10
a side view of the nested parts shown in Figure 7.

Figur 7 verdeutlicht, daß die erfindungsgemäße Abdeckung 1, die als einteiliges Spritzgußteil aus Kunststoff ausgebildet ist, eine Grundplatte 2 sowie zwei sich im Bereich deren Enden von dieser erstreckende Hauben 3 aufweist. Die Hauben 3 sind im Bereich der Grundplatte mit senkrecht zu dieser angeordneten Belüftungsschlitzen 4 versehen. Die jeweilige Haube 3 weist auf ihrer der anderen Haube 3 zugewandten Seite und auf ihrer der Grundplatte 2 abgewandten Seite einen Winkelschlitz 5 auf, durch den jeweils ein Kontaktmesser 6 eines NH-Sicherungseinsatzes 7 in die Haube 3 eingesteckt werden kann. Die Abdeckung 1 dient dem Abdecken zweier nicht gezeigter Sicherungskontakte mittels der Hauben 3 sowie des unterhalb der Abdeckung 1 befindlichen Bereiches einer NH-Sicherungsleiste oder eines NH-Unterteiles. Durch die beiden Winkelschlitze 5 kann bei sonst abgedeckten Sicherungskontakten der NH-Sicherungseinsatz 7 in die Sicherungskontakte eingeführt werden. Der Sicherungseinsatz 7 weist einen Isolierkörper 30 auf. Die den Isolierkörper 30 durchsetzenden Schmelzleiter sind mit den Kontaktmessern 6 verbunden und mittels der Abdeckplatten 28 mit dem Isolierkörper 30 verschraubt.Figure 7 illustrates that the cover 1 of the invention is designed as a one-piece injection molded part made of plastic, a base plate 2 and two themselves in the area of their ends this has extending hoods 3. The hoods 3 are in the Area of the base plate arranged perpendicular to this Provide ventilation slots 4. The respective hood 3 has their side facing the other hood 3 and on their Base plate 2 facing away from an angle slot 5 through each a contact knife 6 of an NH fuse link 7 can be inserted into the hood 3. The cover 1 serves covering two fuse contacts, not shown, by means of the hoods 3 and the one below the cover 1 Area of an NH fuse block or an NH lower part. Through the two angular slots 5 can otherwise be covered Fuse contacts of the NH fuse link 7 in the fuse contacts be introduced. The fuse link 7 has an insulating body 30. The penetrating the insulating body 30 Fusible conductors are connected to the contact blades 6 and by means of the cover plates 28 with the insulating body 30 screwed.

Der konkrete Aufbau der Abdeckung 1 ist in den Figuren 1 bis 6 veranschaulicht: Der jeweilige Winkelschlitz 5 weist einen sich parallel zur Grundplatte 2 erstreckenden Schlitzbereich 5a sowie einen sich senkrecht zur Grundplatte 2 erstreckenden Schlitzbereich 5b auf. Der Winkelschlitz 5 ist im Schlitzbereich 5b geringfügig breiter ausgebildet als die Stärke des Kontaktmessers 6. Hingegen läuft der Schlitz 5 im Bereich des Schlitzbereiches 5a in Richtung des Schlitzbereiches 5b leicht konisch zu, wobei das verjüngte Ende des Schlitzbereiches 5b eine geringere Breite als die Stärke des Kontaktmessers 6 aufweist. Der verjüngte Bereich stellt sich als Wulst 8 dar, der für den mit dem Sicherungseinsatz 7 Arbeitenden die Funktion einer Positionierhilfe besitzt. So ist es möglich, den Sicherungseinsatz 7 mit den beiden Kontaktmessern 6 mit definierter Kraft im Schlitzbereich 5a, konkret dessen Wulst 8, anzusetzen und dort auszurichten, ohne daß die dahinter befindlichen Sicherungskontakte berührt werden. Wird eine größere Schaltkraft auf den Sicherungseinsatz aufgebracht, weiten die Kontaktmesser 6 des Sicherungseinsatzes 7 den Winkelschlitz 5 in diesem Bereich, so daß ein definiertes Schalten sichergestellt ist. Befestigt wird die Abdeckung 1 mit der NH-Sicherungsleiste bzw. dem NH-Sicherungsunterteil, im Bereich der von den Hauben 3 abgedeckten Sicherungskontakten. Hierzu ist jede Haube 3 mit zwei federnden Vorsprüngen 9 zum Aufklippsen der Abdeckung 1 auf zwei Schenkel des zugeordneten Sicherungskontaktes versehen. Die Grundplatte 2 weist im Bereich zwischen den beiden Hauben 3 eine groß dimensionierte, im wesentlichen rechteckige Öffnung 10 auf, die mittels einer Klappe 11 verschließbar ist. Diese ist um eine Achse parallel zur Längsachse 12 schwenkbar mit der Grundplatte 2 verbunden, wobei die Verbindung von Klappe 11 und Grundplatte 2 mittels zweier Filmscharniere 13 erfolgt. Neben jedem Filscharnier 13 ist die Grundplatte 2 mit einem Rastvorsprung 14 versehen, der mit einer an der Klappe 11 angeordneten Nase 15 in vollständig geöffneter Stellung der Klappe 11 zusammenwirkt, indem die Nase 15 den Rastvorsprung 14 hintergreift (Figur 2). Die Klappe 11 ist auf ihrer den beiden Filmscharnieren 13 abgewandten Seite mit zwei vorspringenden Nasen 16 versehen, die bei in Schließstellung befindlicher Klappe 11 zugeordnete Rastvorsprünge 17 der Grundplatte 2 hintergreifen (Figur 3). Bei geöffneter Klappe 11 ist der Schraubbolzen zum Befestigen der NH-Sicherungsleiste bzw. des NH-Unterteiles an der zugehörigen Sammelschiene zugänglich. Die im Bereich der beiden Längsseiten der Grundplatte 2 vorgesehenen, aus dieser ausbrechbaren Abdecklappen 18 ermöglichen bei paarweiser Anordnung der Grundplatten 2 den Zugang zu einer unterhalb der Abdeckung 1 im Bereich der zugeordneten Abdecklappen 18 angeordneten Schiebetrennung des Schienensystems.The specific structure of the cover 1 is shown in FIGS. 1 to 6 illustrates: The respective angular slot 5 has one Slot area 5a extending parallel to the base plate 2 and a slot area extending perpendicular to the base plate 2 5b. The angular slot 5 is in the slot area 5b slightly wider than the thickness of the contact knife 6. On the other hand, the slot 5 runs in the area of the slot area 5a slightly conical in the direction of the slot area 5b to, the tapered end of the slot portion 5b a has a smaller width than the thickness of the contact knife 6. The tapered area is shown as bead 8, which for the with the fuse link 7 workers the function of a Has positioning aid. So it is possible to use the fuse 7 with the two contact blades 6 with a defined force in Slot area 5a, specifically its bulge 8, to apply and there align without the fuse contacts behind it be touched. Will a larger switching force on the Fuse inserted, the contact blades 6 widen the Fuse 7 the angle slot 5 in this area, so that a defined switching is ensured. Is attached the cover 1 with the NH fuse strip or the NH fuse base, in the area covered by the hoods 3 Backup contacts. For this purpose, each hood 3 with two resilient Projections 9 for clipping the cover 1 onto two legs of the assigned fuse contact. The base plate 2 has a large dimension in the area between the two hoods 3, substantially rectangular opening 10 on the can be closed by means of a flap 11. This is one Axis pivotable parallel to the longitudinal axis 12 with the base plate 2 connected, the connection of flap 11 and base plate 2 takes place by means of two film hinges 13. Next to each film hinge 13 is the base plate 2 with a locking projection 14 provided with a arranged on the flap 11 nose 15 in fully open position of the flap 11 cooperates, by the nose 15 engaging behind the locking projection 14 (FIG. 2). The flap 11 is on its two film hinges 13 opposite side provided with two projecting lugs 16, the associated with the flap 11 in the closed position Reach behind locking projections 17 of the base plate 2 (Figure 3). at open flap 11 is the screw bolt for fastening the NH fuse block or the NH lower part on the associated Busbar accessible. The in the area of the two long sides the base plate 2 provided, from this break-out cover flaps 18 enable the base plates to be arranged in pairs 2 access to a below the cover 1 in the area of associated cover tabs 18 arranged sliding separation of the Rail system.

Zu der in den Figuren 7 bis 10 gezeigten Variante der Abdeckung mit kombiniertem Huckepack-Abgriff wird ergänzend auf die Darstellung der Figuren 1 bis 6 Bezug genommen. Dort ist bezüglich der einen Haube 3 veranschaulicht, daß diese auf ihrer der anderen Haube 3 zugewandten Seite zwei federnde Vorsprünge 19 aufweist, zwischen denen der obere Teil des vertikalen Schlitzbereiches 5b gebildet ist. Zwischen den freien abgebogenen Enden 20 der federnden Vorsprünge 19 und der Deckfläche 21 der Haube 3 verbleibt ein Spalt 22 zum Einführen eines mit einer NH-Sicherung versehenen Stromabganges 24, wobei die NH-Sicherung aufgrund des diese umschließenden Gehäuses 25 nur im Bereich deren Grifflaschen 26 sichtbar ist. Mit der Bezugsziffer 27 ist das vom Stromabgang 24 abgehende elektrische Kabel bezeichnet. Wie der Darstellung der Figuren 7 bis 10 zu entnehmen ist, wird, nachdem die Abdeckung 1 auf die Sicherungskontakte der NH-Sicherungsleiste bzw. des NH-Sicherungsunterteiles aufgeklippst ist, der NH-Sicherungseinsatz 7 in die Sicherungskontakte eingesetzt. Dabei wird die den Vorsprüngen 19 der Haube 3 zugewandte Abdeckplatte 28 des NH-Sicherungseinsatzes 7 in Abhängigkeit von dessen möglicher Positionierung in den Sicherungskontakten gegebenenfalls unmittelbar an dem die Belüftungsschlitze 4 aufweisenden Sockel der Haube 3 positioniert. Die beiden Vorsprünge 19 behalten damit ihre Position bei, womit zwischen deren freien Enden 20 und der Deckfläche 21 der Haube der fingersichere Spalt 22 geringer Breite verbleibt. Im Bereich dieses Spaltes kann dann das Kontaktelement 23 des Stromabganges 24 angesetzt werden, wobei das Kontaktelement 23 die beidenden federnden Vorsprünge 19 beim Einsetzen geringfügig von der Deckfläche 21 der Haube 3 weg spreizt und damit den Spalt 22 erweitert. Durch diesen verbreiteren Spalt 22 wird das Kontaktelement 23 des Stromabganges 24 zwecks Huckepack-Abgriff vollständig in die Haube 3 eingeschoben und damit auf das zugeordnete Kontaktmesser 6 des NH-Sicherungseinsatzes 7 aufgesteckt, wobei die freien abgebogenen Enden 20 der federnden Vorsprünge 19 rastierend in Ausnehmungen 33 des Kontaktelementes 23 eingreifen.The variant of the cover shown in FIGS. 7 to 10 with a combined piggyback pick-off is used in addition to the Representation of Figures 1 to 6 referenced. There is with respect to a hood 3 illustrates that this on their the other hood 3 facing side two resilient projections 19, between which the upper part of the vertical Slot area 5b is formed. Between the free turns Ends 20 of the resilient projections 19 and the top surface 21 the hood 3 remains a gap 22 for inserting one with a NH fuse provided power outlet 24, the NH fuse due to the enclosing housing 25 only in the area whose tabs 26 are visible. With reference numeral 27 is the electrical cable outgoing from the outlet 24 denotes. As can be seen from the illustration in FIGS. 7 to 10, after the cover 1 on the fuse contacts of the NH fuse block or the NH fuse base clipped on is, the NH fuse link 7 in the fuse contacts used. The projections 19 of the hood 3 facing cover plate 28 of the NH fuse link 7 depending of its possible positioning in the fuse contacts if necessary, directly on the ventilation slots 4 having the base of the hood 3 positioned. The Both projections 19 thus maintain their position, with what between the free ends 20 and the top surface 21 of the hood the finger-safe gap 22 of small width remains. In the area this gap can then be the contact element 23 of the current outlet 24 are attached, the contact element 23 being the two resilient projections 19 when inserted slightly from the Cover surface 21 of the hood 3 spreads away and thus the gap 22nd extended. Through this wider gap 22, the contact element 23 of the current outlet 24 for the purpose of piggyback tapping fully inserted into the hood 3 and thus on the assigned contact blade 6 of the NH fuse link 7 attached, the free bent ends 20 of the resilient Projections 19 locking in recesses 33 of the contact element 23 intervene.

Claims (17)

  1. Cover (1) made of insulating material for fuses for low voltage high power fuse strips or bases, in which the cover (1) has two covering caps (3) for the fuses and a base plate (2) arranged between the covering caps (3), characterised by the fact that the cover (1) is made in one piece and the base plate (2) is provided with an opening (10) which can be closed.
  2. Cover according to claim 1, characterised by the fact that the base plate (2) has a flap (11) for closing the opening (10).
  3. Cover according to claim 2, characterised by the fact that the flap (11) is connected to the base plate (2), in particular by means of at least one film hinge (13).
  4. Cover according to claim 2 or 3, characterised by the fact that means of locking (16,17) are provided for locking the flap (11) and base plate (2) when the opening (10) in the base plate (2) is closed.
  5. Cover according to claim 4, characterised by the fact that the flap (11) can be locked to the base plate (2) on the side turned away from the flap suspension.
  6. Cover according to one of claims 1 to 5, characterised by the fact that means of locking (14, 15) are provided for locking the flap (11) and base plate (2) when the flap (11) is in the open position.
  7. Cover according to claim 6, characterised by the fact that the flap (11) can be locked in the area of the flap suspension with the base plate (2) or with at least one lug (14) connected to the base plate (2).
  8. Cover according to claims 1 to 7, characterised by the fact that each covering cap (3) is made in the shape of a cage and is provided with ventilation slits (4) at least in the area turned towards the base plate (2).
  9. Cover according to one of claims 1 to 8, characterised by the fact that each covering cap (3) is provided with an angle slit (5) on the side turned towards the other covering cap (3) for inserting the contact blade (6) of a fuse insert (7) to be inserted into the fuse strip or base, in which the angle slit (5) has a smaller width in the slit area (5a) turned away from the base plate (2) than the thickness of the contact blade (6) and the covering cap is elastic in this area.
  10. Cover according to one of claims 1 to 9, characterised by the fact that it can be connected to the fuses and in particular it can be clipped to them.
  11. Cover according to claim 10, characterised by the fact that resilient projections (9) are integrated into each covering cap (3) for clipping the cover to the fuse allocated to it.
  12. Cover according to claim 1 to 11, characterised by the fact that at least one of the covering caps (3) has an opening (22) for inserting a contact element (23) of a separate current output (24), in which the contact element (23) of the separate current output (24) can be put on a contact blade (6) of a low voltage high power fuse insert inserted into the fuse.
  13. Cover according to claim 12, characterised by the fact that a cover element (19) is integrated into the covering cap (3) for the contact element (23) of the separate current output (24) which can be inserted into the cap (3).
  14. Cover according to claim 12 or 13, characterised by the fact that in at least one covering cap (3) at least two resilient projections (19) are integrated into the side turned towards the other covering cap (3), in which a gap (22) is formed between the free end (20) of the resilient projections (19) and the top surface (21) of the cap (3) for inserting the contact element (23) of the current output (24).
  15. Cover according to claim 14, characterised by the fact that, with a separate current output (24) inserted, at least one resilient projection (19) is locked with its contact element (23) in the area of its free end (20).
  16. Cover according to one of claims 1 to 15, characterised by the fact that the base plate (2) is provided with removable covering flaps (18) on both sides between both covering caps (3).
  17. Cover according to one of claims 1 to 16, characterised by the fact that it is made of plastic and in particular it is made as a plastic injection moulded part.
EP98104866A 1997-07-11 1998-03-18 Cover for contacts for fuses in devices with low voltage high power fuses Expired - Lifetime EP0890971B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729885 1997-07-11
DE19729885A DE19729885A1 (en) 1997-07-11 1997-07-11 Cover for fuse contacts on NH fuse strips or lower parts

Publications (3)

Publication Number Publication Date
EP0890971A2 EP0890971A2 (en) 1999-01-13
EP0890971A3 EP0890971A3 (en) 2000-01-05
EP0890971B1 true EP0890971B1 (en) 2004-02-11

Family

ID=7835482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104866A Expired - Lifetime EP0890971B1 (en) 1997-07-11 1998-03-18 Cover for contacts for fuses in devices with low voltage high power fuses

Country Status (3)

Country Link
EP (1) EP0890971B1 (en)
AT (1) ATE259540T1 (en)
DE (2) DE19729885A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19911852B4 (en) * 1999-03-17 2007-12-13 Efen Gmbh Aufstecksicherung
DE19917403A1 (en) * 1999-04-16 2000-10-19 Mueller Jean Ohg Elektrotech Fuse switch-disconnector in strip design for NH fuses
DE10210993A1 (en) * 2002-03-13 2003-10-02 Hubert Stueken Gmbh & Co Cap for safety fuse with hood-shaped body with bottom and edge sections, has several protrusion on edge section insertable clampingly on object

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183115A (en) * 1967-09-07 1970-03-04 Artic Fuse And Electrical Mfg Improvements in Means for Shrouding Electrical Contacts
DE2515692C3 (en) * 1975-04-10 1984-07-26 Siemens AG, 1000 Berlin und 8000 München NH fuse base for placing on busbars
DE2606130C3 (en) * 1976-02-17 1981-06-11 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Connection device
DE3544534A1 (en) * 1985-12-17 1987-06-19 Geyer Gmbh & Co Christian Switchable NH fuse with a junction device
DE3918816C2 (en) * 1989-06-09 1997-04-24 Efen Elektrotech Fab Cover for NH fuse strips or lower parts
DE4317052C2 (en) * 1993-05-21 1995-10-19 Felten & Guilleaume Energie Protective cap for a contact for an NH fuse
DE9309654U1 (en) * 1993-06-29 1993-09-02 Siemens AG, 80333 München Fuse disconnector

Also Published As

Publication number Publication date
DE59810732D1 (en) 2004-03-18
EP0890971A3 (en) 2000-01-05
ATE259540T1 (en) 2004-02-15
EP0890971A2 (en) 1999-01-13
DE19729885A1 (en) 1999-02-04

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