EP0122422A2 - Culot de fusible en forme de cavalier appliqué sur des barres omnibus - Google Patents

Culot de fusible en forme de cavalier appliqué sur des barres omnibus Download PDF

Info

Publication number
EP0122422A2
EP0122422A2 EP84102296A EP84102296A EP0122422A2 EP 0122422 A2 EP0122422 A2 EP 0122422A2 EP 84102296 A EP84102296 A EP 84102296A EP 84102296 A EP84102296 A EP 84102296A EP 0122422 A2 EP0122422 A2 EP 0122422A2
Authority
EP
European Patent Office
Prior art keywords
contact plate
plate
fuse
clamping bracket
busbar
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
EP84102296A
Other languages
German (de)
English (en)
Other versions
EP0122422B1 (fr
EP0122422A3 (en
Inventor
Hans Wagener
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.)
Rittal Werk Rudolf Loh GmbH and Co KG
Original Assignee
Rittal Werk Rudolf Loh GmbH and Co KG
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
Priority claimed from DE3309360A external-priority patent/DE3309360A1/de
Priority claimed from DE19843400805 external-priority patent/DE3400805A1/de
Application filed by Rittal Werk Rudolf Loh GmbH and Co KG filed Critical Rittal Werk Rudolf Loh GmbH and Co KG
Priority to AT84102296T priority Critical patent/ATE25446T1/de
Publication of EP0122422A2 publication Critical patent/EP0122422A2/fr
Publication of EP0122422A3 publication Critical patent/EP0122422A3/de
Application granted granted Critical
Publication of EP0122422B1 publication Critical patent/EP0122422B1/fr
Expired 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
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/2005—Bases for supporting the fuse; Separate parts thereof for use with screw-in type fuse
    • 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
    • H01H2085/2055—Connections to bus bars in an installation with screw in type fuses or knife blade fuses

Definitions

  • the invention relates to a rider fuse base which can be placed on busbars and which, on the underside of its base plate provided with a fuse holder, has a fastening device which interacts with the busbar and braces a separate contact plate which covers the underside of the fuse holder with the busbar.
  • Two systems the so-called diazed system, and the DO, Dezero or Neozed system are used for the fuse bases. Both systems work with fuses of different nominal amperage, whereby a so-called fitting ring system is provided to achieve a distinctive character in the sense that a fuse with a too high nominal amperage is not inadvertently used in a fuse base that is intended to protect a circuit of low amperage.
  • the fitting ring is de-energized and arranges the fuses according to their diameters at a precisely defined point. With the fitting ring system, the fuse is placed directly on the foot contact or in this case on the live busbar.
  • the fitting screw for selecting the fuses has prevailed.
  • the dowel screw is also based on a diameter of the fuse, in this Case the diameter of the foot contact, but at the same time takes over the electrical connection to the foot contact of the element or to the current-carrying busbar.
  • This system means that the busbar must be provided with threaded holes from the outset, or that an adapter nut is necessary as an additional connecting link between the passport cap and the busbar.
  • a rider fuse base of the type mentioned is known from DE-OS 21 51 641.
  • the contact plate is provided with an attachment which has the threaded bore for a fitting screw.
  • the contact plate and the neck are adapted to a certain thickness of the busbar, so that correspondingly designed contact plates with neck must be provided for busbars of different thicknesses.
  • at least the screw that braces the end of the tab that is not fixed on the base plate against the busbar must be completely loosened to loosen the rider fuse base from the busbar.
  • the tab In order to compensate for manufacturing tolerances, the tab must yield accordingly in order to achieve sufficient bracing, which leads to the same remaining deformation.
  • the well-known Reiter fuse base is only suitable for fitting screw systems. In order to be able to use the known Reiter fuse base for fitting ring systems, a further set of contact plates would have to be provided.
  • the one Uniformly designed contact plate can be used for both the fitting ring system and the fitting screw system and which can in any case be fixed to busbars of different thicknesses and widths with clear and large-area bracing.
  • the contact plate on the central axis of the fuse holder has a threaded hole that outside of the fuse holder in a recess on the underside of the base plate, a clamping bracket with an adjustable screw from the top of the base plate is arranged that the clamping bracket the contact plate and the busbar resting on the underside of the same engages around on one side, that the opposite side of the contact plate is inserted and held in a receiving groove of the base plate and that the set screw braces the contact plate and the busbar against one another and against the clamping bracket.
  • the fuse holder can accommodate fitting rings that are supported on the contact plate. Fit screws are screwed into the threaded hole in the contact plate. In any case, there is contact between the fuse and the contact plate, so that if the screw cap of the tab fuse base is not tightened and the scorching, only the contact plate has to be replaced.
  • the tension between the clamping bracket, the busbar and the contact plate is clear and extensive and independent of the thickness of the busbar as long as it does not exceed a predetermined value.
  • the Reiter fuse base can therefore be used universally and is still easily detachable from the busbar, which is important for the assembly and replacement of the contact plate.
  • the rider fuse base in this configuration has the advantage of the known rider Fuse base that the fuses are not in direct contact with the busbar, but that the rider fuse base can be attached to busbar systems of different thicknesses with a uniform contact plate for both the fitting ring system and the fitting screw system.
  • the contact plate is releasably attached to the securing plate, then the contact plate can be easily replaced when the adjusting screw is loosened.
  • the receiving groove for the contact plate is formed according to one embodiment in that the receiving groove connects to the underside of the fuse holder and is limited by means of a web of the base plate.
  • the recess is rectangular and the clamping bracket non-rotatably guides that the adjusting screw in a threaded receptacle of the side leg of the clamping plate facing the top of the base plate is adjustable so that the Underside of the base plate facing side leg of the clamping bracket of the busbar is provided with claws and that the headed screwed into the threaded receptacle of the clamping bracket is held captive in a bore in the bottom of the base plate closing the recess.
  • the rider fuse base can also be fixed to busbars of different thicknesses and widths
  • the clear distance between the side legs of the clamping bracket is at least At least the sum of the thickness of the contact plate and the maximum thickness of the busbar corresponds and that the distance of the web closing the receiving groove for the contact plate from the side of the contact plate encompassing the clamping bracket corresponds to the maximum width of the busbar by a predetermined amount for the insertion of the busbar into the clamping bracket exceeds.
  • the tab fuse base is usually designed as a single fuse. According to a further embodiment, however, it can also be provided that the base plate has a plurality of securing receptacles with separate contact plates and separate clamps.
  • the assembly of the contact plate and the clamping bracket is simplified according to a further embodiment in that the end of the set screw screwed into a threaded bore of the upper leg of the clamping bracket, the contact plate is captively but freely rotatably mounted in the contact plate and that in the receiving groove of the base plate inserted contact plate is additionally screwed to the underside of the base plate by means of a fastening screw.
  • the contact plate, the clamping bracket and the set screw form an inseparable prefabricated unit which can be attached to and removed from the base plate quickly and easily with the additional fastening screw.
  • the set screw can be turned back to a relaxed position, but it does not come loose from the clamping bracket and the contact plate.
  • the rider fuse base can therefore be easily attached to and detached from the busbar in the same way.
  • the parts cannot detach from the base plate, unless the entire unit consisting of the contact rail, clamping bracket and adjusting screw is replaced when the rider fuse base is removed from the busbar. For this purpose, the screw connection between the contact plate and the base plate is then removed.
  • the captive, but freely rotatable fixing of the set screw on the contact plate is carried out in such a way that the reduced-diameter end of the set screw is axially immovable, but rotatable, in a tapering conical opening of the contact plate by deformation.
  • connection between the base plate and the contact plate is made according to one embodiment so that the base plate carries a threaded blind hole on the underside between the fuse holder and the recess for the clamping bracket and that the contact plate in the area of this threaded blind hole with a conically tapering towards the base plate Recording for the countersunk head of the fastening screw is provided. The fastening screw then does not affect the position of the busbar on the underside of the contact plate.
  • the insertion of the contact plate into the receiving groove of the base plate is made possible in the unit comprising the contact plate, the clamping bracket and the adjusting screw in that the wall of the recess facing the end of the contact plate encompassed by the clamping bracket is arranged at a predetermined distance from the clamping bracket when the contact plate is in the receiving groove inserted and screwed to the base plate. . It is then also provided that the recess facing the top of the base plate faces directly into a protection sleeve passes, which picks up and encloses the head of the adjusting screw with adjustment play. The set screw can therefore carry out the required adjustment movement in the protective sleeve when the contact plate is inserted into the receiving groove of the base plate and remains operable from the top of the base plate.
  • the contact and support of the contact plate on the base plate can be improved according to a further embodiment in that this wall of the recess has a shoulder on which the end of the contact plate which is guided through the clamping bracket is supported.
  • the base plate 11 made of insulation material is provided with a continuous fuse holder 35.
  • the threaded bridge 13 is fastened centrally to the fuse holder 35, specifically by means of the two flanges 16 and 18 connected to the grooves 17 and 19 with the base plate 11.
  • the flanges 16 and 18 go to the lower angled edge 12 , but also the terminal lug 14 with the clamping screw 15 for an electrical conductor.
  • the rectangular or square recess 34 is made in the base plate 11 from the underside.
  • This recess 34 is pot-like and in the final, the top of the base plate 11 completing the bottom hole 26 is made for the screw 27 with head 28.
  • the set screw 27 is guided through the bore 26 and screwed into the threaded receptacle 30 in the upper side leg 31 of the clamping bracket 29.
  • the set screw 27 and the clamping bracket 29 are then held captively on the base plate 11, since the head 28 on the top of the base plate 11 serves as an abutment. With the help of this adjusting screw 27, the clamping bracket 29 can be adjusted in the recess 34.
  • the molded on the top of the base plate 11 protective sleeve 25 covers the head 28 of the screw 27.
  • a sealing plug can close the protective sleeve 25 and make the head 28 of the adjusting screw 27 inaccessible.
  • the contact plate 23 has the threaded bore 24 in the region of the central axis of the fuse holder 35.
  • the retaining spring 36 for the fitting rings projects into the fuse holder 35.
  • the contact plate 23 extends to the recess 34 and is inserted into the clamping bracket 29.
  • the contact plate 23 is held in the receiving groove 22 ten, which is limited by the web 21 of the base plate 11. The contact plate 23 is thus releasably held on the underside of the base plate 11 and can be easily replaced.
  • the clamping bracket 29 also receives the busbar 10, which bears against the underside of the contact plate 23.
  • the contact plate 23 and the busbar 10 are clamped together between the set screw 27 and the lower side leg 32.
  • the clear distance between the side legs 31 and 32 of the clamping bracket 29 is matched at least to the sum of the thickness of the contact plate 23 and the maximum thickness of the busbar 10, so that the rider fuse base of this type can be fixed to busbars 10 of different thicknesses.
  • the rider fuse base can also be fixed on busbars 10 of different widths
  • the distance between the mutually opposite sides of the contact plate 23, which are held in the receiving groove 22 and which are gripped by the clamping bracket 29, is larger by a predetermined amount than the maximum width the busbar 10.
  • the predetermined size is selected so that the busbar 10 can still be inserted into the clamp bracket 29.
  • the lower side leg 32 of the clamping bracket 29 forms the abutment for the busbar 10 and has the busbar 10 facing claws 33 or the like, in order to ensure good contact when jammed.
  • the securing receptacle 35 can optionally accommodate fitting rings or fitting screws, the latter being screwed to the contact plate 23 in the threaded bore 24.
  • the contact for securing is never made directly to the busbar 10. Is one on the threaded bridge 13 screwed screw cap is not tightened firmly, then only loose contact between the fuse and the contact plate 11 can occur. A scorched contact plate 23 can, however, be easily replaced without loosening all the elements fixed on the busbar 10.
  • the base plate 11 can also have a plurality of securing receptacles 35 and 35 '.
  • Each fuse holder 35 and 35 ' is assigned a threaded bridge 13 or 13', a contact plate 23 or 23 ', a clamping bracket 29 or 29', an adjusting screw 27 or 27 'with a head 28 or 28'.
  • the contact plates 23 and 23 ' are detachably held in the receiving grooves 22 and 22', which are delimited by the webs 21 and 21 ', on the underside of the base plate 11.
  • the clamps 29 and 29 'adjustable in the receptacles 34 and 34' fix the base plate 11 on two parallel busbars 10 and 10 '.
  • the distance between the set screws 27 and the central axes of the fuse holders 35 and 35 ' is matched to the distance between the central axes of the busbars 10 and 10'.
  • the base plate 11 can thus be designed as a double or multiple fuse.
  • the base plate 11 can also be formed next to one another in the longitudinal direction of the busbar 10 for two or more fuses.
  • the base plate 11 made of insulation material is provided with a continuous fuse holder 35.
  • the threaded bridge 13 is attached centrally to the securing receptacle 35, specifically by means of the two flanges 16 and 18 connected to the rivets 17 and 19 with the base plate 11.
  • the flanges 16 and 18 go at the lower angled edge 12 , but also the terminal lug 14 with the clamping screw 15 for an electrical conductor.
  • the rectangular or square recess 34 is made in the base plate 11 from the underside.
  • the recess 34 merges directly into the protective sleeve 25 in the region of the top of the base plate 11.
  • the contact plate 23 has in the area of the central axis of the fuse holder 35 the threaded bore 34 for screwing in a fitting screw.
  • This end 41 of the set screw 27 is axially fixed in the opening 40 of the contact plate 23, but freely rotatable.
  • the opening 40 tapers conically towards the adjusting screw 27 and the end 41 is deformed in such a way that it adapts to the shape of the opening 40.
  • D with the clamping bracket 29 is combined with the set screw 27 and the contact plate 23 to form a prefabricated unit, which as a whole can be connected to the base plate 11 and can be detached from it.
  • the detachable attachment of the unit to the base plate 11 is carried out with the fastening screw 37.
  • This mounting screw 37 is inserted with its countersunk head 38 into the receptacle 39 of the contact plate 23 and screwed into the threaded blind hole 42 of the base plate 11, which is introduced between the fuse holder 35 and the recess 34 in the underside of the base plate 11.
  • the countersunk head 38 of the fastening screw 37 is arranged flush in the receptacle 39 so that it does not hinder the contact of the busbar 10 on the underside of the contact plate 23.
  • the contact plate 23 is inserted below the fuse holder 35 into the receiving groove 22 delimited by the web 21 of the base plate 11. Since the clamping bracket 29 is also inserted into the recess 34, the recess 34 must permit the adjustment of the contact plate 23 required for this.
  • the wall of the recess 34 facing the side of the contact plate 23 encompassed by the clamping bracket 29 has, in the installed state, a predetermined distance from the contact plate 23 and from the clamping bracket 29, which is required for the insertion of the contact plate 23 into the receiving groove 22.
  • the head 28 of the adjusting screw 27 in the protective sleeve 25 must also have the same adjustment play.
  • the lower, provided with claws 33 leg 32 of the clamp bracket 29 lies against the underside of the busbar 10.
  • the contact plate 11 is braced with the busbar 10 and the busbar 10 with the lower leg 32 of the clamping bracket 29.
  • the loosening of the set screw 27 is limited by the stop of the contact plate 23 on the upper leg 31 of the clamping bracket 29.
  • the rider fuse base can be pulled off the side of the busbar 10.
  • the unit consisting of contact plate 23, clamping bracket 29 and adjusting screw 27 is held on the base plate 11. By loosening the fastening screw 37, the unit comprising the contact plate 23, the clamping bracket 29 and the adjusting screw 27 can easily be replaced.
  • the contact plate 23 is guided through the clamping bracket 29 and is used for additional support on the base plate 11.
  • the wall of the recess 34 facing this end of the contact plate 23 has the shoulder 42 on which the contact plate 23 is located supports when tightening the fastening screw 37.
  • the set screw 27 with the head 28 can be operated protected from the top of the base plate 11 by the protective sleeve 25.

Landscapes

  • Fuses (AREA)
EP84102296A 1983-03-16 1984-03-03 Culot de fusible en forme de cavalier appliqué sur des barres omnibus Expired EP0122422B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102296T ATE25446T1 (de) 1983-03-16 1984-03-03 Auf sammelschienen aufsetzbarer reitersicherungssockel.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3309360A DE3309360A1 (de) 1983-03-16 1983-03-16 Auf sammelschienen aufsetzbarer reiter-sicherungssockel
DE3309360 1983-03-16
DE3400805 1984-01-12
DE19843400805 DE3400805A1 (de) 1984-01-12 1984-01-12 Auf sammelschienen aufsetzbarer reiter-sicherungssockel

Publications (3)

Publication Number Publication Date
EP0122422A2 true EP0122422A2 (fr) 1984-10-24
EP0122422A3 EP0122422A3 (en) 1985-04-10
EP0122422B1 EP0122422B1 (fr) 1987-02-04

Family

ID=25809099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102296A Expired EP0122422B1 (fr) 1983-03-16 1984-03-03 Culot de fusible en forme de cavalier appliqué sur des barres omnibus

Country Status (3)

Country Link
US (1) US4538879A (fr)
EP (1) EP0122422B1 (fr)
AU (1) AU560156B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199082A2 (fr) * 1985-04-16 1986-10-29 Rittal-Werk Rudolf Loh GmbH & Co. KG Dispositif pour couvrir des supports de fusibles

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642808C2 (de) * 1985-12-14 1997-05-15 Leica Ag Mikroskop mit einem C-förmigen Stativ
US4925395A (en) * 1987-11-05 1990-05-15 Franks George J Jr Clamp for electrically conductive strips
US5006074A (en) * 1987-11-05 1991-04-09 Franks George J Jr Adjustable ground clamp
US4993960A (en) * 1987-11-05 1991-02-19 Franks George J Jr Grounding system and clamp
US5726852A (en) * 1996-09-20 1998-03-10 Reltec Corporation Modular DC distribution unit and system
JP3952904B2 (ja) * 2002-08-12 2007-08-01 住友電装株式会社 電気接続箱
US6877996B1 (en) 2002-11-27 2005-04-12 Senior Industries, Inc. Grounding connector
USD486791S1 (en) 2003-01-29 2004-02-17 Senior Industries, Inc. Ground block
USD487427S1 (en) 2003-01-29 2004-03-09 Senior Industries, Inc. Ground block
US7488213B2 (en) * 2007-03-30 2009-02-10 Paccar Inc. Fuse holder assembly
DE102008016388B4 (de) * 2008-03-29 2010-10-07 Ostmeier, Hubert, Dipl.-Ing. Vorrichtung zum Testen einer Schutz-, Mess- oder Zähleinrichtung als Bestandteil einer Mittel- oder Hochspannungsanlage
US9543104B2 (en) 2015-04-17 2017-01-10 Hamilton Sundstrand Corporation Fuse assemblies
US9698578B1 (en) 2016-01-06 2017-07-04 Ilsco Corporation Slotted bus bar for electrical distribution

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294530B (de) * 1963-07-27 1969-05-08 Lindner Gmbh Fa D-Sicherungssockel zum Aufsetzen auf eine gemeinsame Bodenkontaktschiene
DE2151641A1 (de) * 1971-10-16 1973-04-19 Hans Schade D-sicherungssockel fuer reihenanordnung
DE8009268U1 (de) * 1980-04-03 1980-08-28 Alfred Woehner Gmbh & Co Kg, 8633 Roedental Dreipolige Sockelplatte für elektrische Sicherungen
DE3010843A1 (de) * 1980-03-21 1981-10-01 Rudolf Zimmermann Gmbh + Co Kg, 8600 Bamberg Reitersicherungssockel
DE8307612U1 (de) * 1983-03-16 1983-07-14 Rittal-Werk Rudolf Loh Gmbh & Co Kg, 6348 Herborn Auf Sammelschienen aufsetzbarer Reiter-Sicherungssockel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694701A (en) * 1971-06-09 1972-09-26 Square D Co Insulating base, plug-on bus bar and connector assembly for circuit breaker panelboard
US3727171A (en) * 1971-07-23 1973-04-10 Westinghouse Canada Ltd Bus connector assembly
FR2416564A1 (fr) * 1978-02-07 1979-08-31 Alsthom Cgee Bloc de jonction pour conducteurs de protection
US4231633A (en) * 1978-09-26 1980-11-04 Gould Inc. Neutral bar, lug and barrier assembly
US4222627A (en) * 1978-11-20 1980-09-16 Square D Company Pullout fuse holder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294530B (de) * 1963-07-27 1969-05-08 Lindner Gmbh Fa D-Sicherungssockel zum Aufsetzen auf eine gemeinsame Bodenkontaktschiene
DE2151641A1 (de) * 1971-10-16 1973-04-19 Hans Schade D-sicherungssockel fuer reihenanordnung
DE3010843A1 (de) * 1980-03-21 1981-10-01 Rudolf Zimmermann Gmbh + Co Kg, 8600 Bamberg Reitersicherungssockel
DE8009268U1 (de) * 1980-04-03 1980-08-28 Alfred Woehner Gmbh & Co Kg, 8633 Roedental Dreipolige Sockelplatte für elektrische Sicherungen
DE8307612U1 (de) * 1983-03-16 1983-07-14 Rittal-Werk Rudolf Loh Gmbh & Co Kg, 6348 Herborn Auf Sammelschienen aufsetzbarer Reiter-Sicherungssockel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199082A2 (fr) * 1985-04-16 1986-10-29 Rittal-Werk Rudolf Loh GmbH & Co. KG Dispositif pour couvrir des supports de fusibles
EP0199082A3 (en) * 1985-04-16 1989-03-15 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Device for covering fuse holders

Also Published As

Publication number Publication date
EP0122422B1 (fr) 1987-02-04
AU560156B2 (en) 1987-04-02
US4538879A (en) 1985-09-03
EP0122422A3 (en) 1985-04-10
AU2563284A (en) 1984-09-20

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