EP0890970B1 - Couvercle pour contacts de fusibles dans les dispositifs à fusibles du type basse tension haute puissance - Google Patents

Couvercle pour contacts de fusibles dans les dispositifs à fusibles du type basse tension haute puissance Download PDF

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Publication number
EP0890970B1
EP0890970B1 EP98103860A EP98103860A EP0890970B1 EP 0890970 B1 EP0890970 B1 EP 0890970B1 EP 98103860 A EP98103860 A EP 98103860A EP 98103860 A EP98103860 A EP 98103860A EP 0890970 B1 EP0890970 B1 EP 0890970B1
Authority
EP
European Patent Office
Prior art keywords
cover
cover according
baseplate
flap
fuse
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
EP98103860A
Other languages
German (de)
English (en)
Other versions
EP0890970A2 (fr
EP0890970A3 (fr
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
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 Jean Mueller Elektrotechnische Fabrik GmbH filed Critical Jean Mueller Elektrotechnische Fabrik GmbH
Publication of EP0890970A2 publication Critical patent/EP0890970A2/fr
Publication of EP0890970A3 publication Critical patent/EP0890970A3/fr
Application granted granted Critical
Publication of EP0890970B1 publication Critical patent/EP0890970B1/fr
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
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/205—Electric connections to contacts on the base
    • H01H2085/206—Electric 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/203—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals
    • H01H85/204—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals for low voltage fuses with knife-blade end contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H01H85/25—Safety 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) - safety strips or lower parts, wherein the cover two hood-shaped cover elements for the Fuse contacts and one arranged between the covers Has base plate, the covers each have an angle slot through which a contact knife an NH fuse link can be inserted.
  • 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 Cover and essentially half of the base part represents and the other part through the other cover and the im 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 essentially exists from one with the corresponding busbar contact connected discharge angle, for example as an L-shaped Rail with an elongated hole in the angled L-leg is formed through which a screw bolt are passed can, so that the L-leg to the associated busbar can be screwed on.
  • a disadvantage of the known cover that when working on Bolt, for example to tighten this, a part the cover, namely the base plate part having the projection must be removed with the associated cover, with which the contact usually covered by the cover, the can be due to tension, is freely accessible.
  • the one in The area of the security guards is subject to one increased risk.
  • Another disadvantage is that the cover consists of two parts and therefore during 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 part is lost or is not assembled.
  • a separate power outlet which in practice also as Piggyback tap is called to provide.
  • Such a separate power outlet usually serves the purpose of one to enable temporary power tapping, for example to Operation of construction sites, curbs or fair events, etc. If the current is tapped from the feed-in side, this is additionally secured.
  • a contact element is used for piggyback tapping the separate current outlet on a contact knife inserted in the NH fuse block or lower part attached.
  • DE 35 44 534 A is a switchable NH fuse with a branching device described.
  • There is the respective one Fuse insert can be operated using a switching flap.
  • the Switch flap has a push-through opening for pushing through the contact finger of the branching device that the contact knife contact the NH fuse link below.
  • the operating handle of the switching flap can be swiveled stored in a locking plate that used to cover the underneath horizontal through opening of the switching flap is used.
  • the problem is solved by covering the above kind of in that at least one of the hoods has an opening for inserting a contact element of a separate one Has current outlet, the contact element of the separate Current output on a contact knife one in the fuse contacts inserted NH fuse link is pluggable.
  • the design of the cover according to the invention on the one hand sure that the live parts of the NH fuse block or the lower fuse part covered are, but still an access of the separate in the area of the cover Current outlet to the contact knife of the interested NH fuse link is possible.
  • the opening in the cover should be such that only the person who is absolutely responsible for the Introducing the contact element of the separate current outlet required Space is available.
  • a cover element in the hood for the contact element of the separate pluggable into the hood Power outlet is integrated. The space between the cover element and the actual cover takes the inserted contact element of the separate power outlet.
  • At least two resilient projections are, between the free end of the resilient projections and the cover surface of the cover a gap for inserting the contact element the current outlet is formed.
  • the contact element of the separate power outlet that springs Cover element back, which reduces the gap width and the cover in this area is finger-safe.
  • the contact element of the Current outlet clamped.
  • At least one of the projections can be designed so that he with a separate current outlet used with its contact element detented. There is thus an unintentional release of the separate current outlet, for example due to the contact element initiated vibrations, effectively prevented.
  • the cover is formed in one piece and the Base plate is provided with a closable opening. It this ensures that the cover is always that Fuse contact pair covers, regardless of whether work in Area of the bolt must be carried out. So that Bolt is accessible, it is only necessary that To make the opening accessible. In the one between the two Covering hoods formed can then open the Bolts are applied. Are the assembly work finished, it is only necessary to close the opening in the base plate close. The two fuse contacts and the one between this area is then covered so that it is safe to touch.
  • the cover is preferably a plastic injection molded part educated.
  • 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.
  • 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 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.
  • the respective cover 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 cover hood is expedient on the other cover 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 the one behind the respective cover Align fuse contact. During the switching process the cover in this slot area widened and the switch blade 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.
  • 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 covering hoods 3.
  • the covers 3 are in Area of the base plate arranged perpendicular to this Provide ventilation slots 4.
  • the respective cover 3 has their the other cover 3 facing side 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 cover 3.
  • the cover 1 serves covering two fuse contacts, not shown, by means of the cover 3 and the one located 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.
  • 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 cover 3 illustrates that this on their the other cover 3 side facing two resilient projections 19, between which the upper part of the vertical Slot area 5b is formed.
  • the cover 3 Between the free turns Ends 20 of the resilient projections 19 and the top surface 21 the cover 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.

Landscapes

  • Fuses (AREA)

Claims (18)

  1. Couvercle (1) en matériau isolant pour contacts de fusibles dans les dispositifs à fusibles du type basse tension haute puissance, le couvercle (1 ) présentant deux éléments couvrants en forme de calotte (3) pour les contacts de fusibles, avec, à chaque fois, une fente angulaire (5) dans laquelle, à chaque fois, une lame de contact (6) d'un insert de fusibles du type basse tension haute puissance (7) peut être inséré, et une plaque de base (2) disposée entre les calottes de couverture (3),
    caractérisé en ce qu'
    au moins l'une des calottes de couverture (3) présente une ouverture (22) pour insérer un élément de contact (23) d'une sortie de courant (24) séparée, l'élément de contact (23) de la sortie de courant (24) séparée pouvant être enfiché sur une lame de contact (6) d'un insert de fusibles du type basse tension haute puissance (7) inséré dans les contacts de fusibles.
  2. Couvercle selon la revendication 1,
    caractérisé en ce qu'
    un élément couvrant (19) pour l'élément de contact (23) de la sortie de courant (24) séparée pouvant être inséré dans la calotte de couverture (3) est intégré dans la calotte de couverture (3).
  3. Couvercle selon la revendication 1 ou 2,
    caractérisé en ce qu'
    au moins deux avancées élastiques (19) sont intégrées dans la calotte de couverture (3), sur son côté dirigé vers l'autre calotte de couverture (3), où une fente (22) est formée entre les extrémités libres (20) des avancées élastiques (19) et de la surface de couverture (21) de la calotte (3) pour introduire l'élément de contact (23) d'une sortie de courant (24) séparée.
  4. Couvercle selon la revendication 3,
    caractérisé en ce qu'
    au moins une avancée élastique (19) s'engage avec l'élément de contact (23) de la sortie de courant (24) séparée insérée dans la zone de ses extrémités libres (20).
  5. Couvercle selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le couvercle (1) est constitué de façon monobloc et que la plaque de base (2) est pourvue d'une ouverture (10) pouvant être fermée.
  6. Couvercle selon la revendication 5,
    caractérisé en ce que
    le clapet (11) est affecté à la plaque de base (2) pour fermer l'ouverture (10).
  7. Couvercle selon la revendication 6,
    caractérisé en ce qu'
    un clapet (11) est un constituant du couvercle (1).
  8. Couvercle selon la revendication 6 ou 7,
    caractérisé en ce que
    le clapet (11) est relié à la plaque de base (2), en particulier au moyen d'au moins un film - charnière (13).
  9. Couvercle selon l'une quelconque des revendications 6 à 8,
    caractérisé en ce que
    des moyens d'encliquetage (16, 17) sont prévus pour encliqueter le clapet (11) et la plaque de base (2), avec l'ouverture (10) fermée de la plaque de base (2),.
  10. Couvercle selon la revendication 9,
    caractérisé en ce que
    le clapet (11) peut s'encliqueter en son côté détourné du logement de clapet avec la plaque de base (2).
  11. Couvercle selon l'une quelconque des revendications 6 à 10,
    caractérisé en ce que
    des moyens d'encliquetage (14, 15) pour encliqueter le clapet (11) et la plaque de base (2), avec le clapet (11) en position ouverte, sont prévus.
  12. Couvercle selon la revendication 11,
    caractérisé en ce que
    le clapet (11) peut s'encliqueter avec la plaque de base (2) dans la zone du logement de clapet ou avec au moins un téton (14) relié à la plaque de base (2).
  13. Couvercle selon l'une quelconque des revendications 1 à 12,
    caractérisé en ce que
    la calotte respective de couverture (3) est constituée en forme de cage et est pourvue de fentes d'aération (4) au moins dans sa zone dirigée vers la plaque de base (2).
  14. Couvercle selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce que
    la calotte respective de couverture (3), sur son côté dirigé vers l'autre calotte de couverture (3) et son côté détourné de la plaque de base (2), est pourvue d'une fente angulaire (5) pour introduire le couteau de contact (6) d'un insert de fusibles (7) à introduire dans le dispositif à fusibles, la fente angulaire (5) présentant une plus petite largeur que l'épaisseur de la lame de contact (6) dans sa zone de fente (5a) détournée de la plaque de base (2) et la calotte de couverture (3) est élastique dans cette zone.
  15. Couvercle selon l'une quelconque des revendications 1 à 14,
    caractérisé en ce qu'
    il peut être relié avec les contacts de fusibles, en particulier, par clipsage.
  16. Couvercle selon la revendication 15,
    caractérisé en ce que
    des avancées élastiques (19) sont intégrées dans la calotte correspondante de couverture (3) pour clipser le couvercle sur le contact de fusibles qui lui est attribué.
  17. Couvercle selon l'une quelconque des revendications 1 à 16,
    caractérisé en ce que
    la plaque de base (2) est pourvue des deux côtés entre les deux calottes de couverture (3) de clapets de couverture (18) amovibles.
  18. Couvercle selon l'une quelconque des revendications 1 à 17,
    caractérisé en ce qu'
    il est constitué en matière synthétique et en particulier en matière synthétique moulée par injection.
EP98103860A 1997-07-11 1998-03-05 Couvercle pour contacts de fusibles dans les dispositifs à fusibles du type basse tension haute puissance Expired - Lifetime EP0890970B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729886A DE19729886C1 (de) 1997-07-11 1997-07-11 Abdeckung für Sicherungskontakte an NH-Sicherungsleisten oder -unterteilen
DE19729886 1997-07-11

Publications (3)

Publication Number Publication Date
EP0890970A2 EP0890970A2 (fr) 1999-01-13
EP0890970A3 EP0890970A3 (fr) 2000-01-05
EP0890970B1 true EP0890970B1 (fr) 2004-08-18

Family

ID=7835483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103860A Expired - Lifetime EP0890970B1 (fr) 1997-07-11 1998-03-05 Couvercle pour contacts de fusibles dans les dispositifs à fusibles du type basse tension haute puissance

Country Status (3)

Country Link
EP (1) EP0890970B1 (fr)
AT (1) ATE274234T1 (fr)
DE (2) DE19729886C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811812B1 (fr) * 2000-07-12 2003-06-27 Mecelec Ind Connecteur de raccordement et ensemble de raccordement electrique entre un jeu de barres et au moins un cable conducteur
US10091902B2 (en) * 2015-11-23 2018-10-02 Te Connectivity Corporation Electrical module for battery distribution assembly

Family Cites Families (8)

* 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
DE2606130C3 (de) * 1976-02-17 1981-06-11 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Anschlußvorrichtung
DE3544534A1 (de) * 1985-12-17 1987-06-19 Geyer Gmbh & Co Christian Schaltbare nh-sicherung mit abzweigeinrichtung
DE3728272A1 (de) * 1987-08-25 1989-03-16 Mueller Jean Ohg Elektrotech Elektrische steckkontaktverbindung
DE3918816C2 (de) * 1989-06-09 1997-04-24 Efen Elektrotech Fab Abdeckung für NH-Sicherungsleisten oder -unterteile
DE9305969U1 (de) * 1993-04-20 1993-07-01 Christian Geyer GmbH & Co, 8500 Nürnberg NH-Sicherung
DE4317052C2 (de) * 1993-05-21 1995-10-19 Felten & Guilleaume Energie Schutzkappe für einen Aufnahmekontakt für eine NH-Sicherung
DE9309654U1 (de) * 1993-06-29 1993-09-02 Siemens AG, 80333 München Sicherungstrennschalter

Also Published As

Publication number Publication date
EP0890970A2 (fr) 1999-01-13
DE19729886C1 (de) 1998-12-17
ATE274234T1 (de) 2004-09-15
DE59811821D1 (de) 2004-09-23
EP0890970A3 (fr) 2000-01-05

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