EP0621622A1 - Porte-fusible - Google Patents

Porte-fusible Download PDF

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Publication number
EP0621622A1
EP0621622A1 EP94100836A EP94100836A EP0621622A1 EP 0621622 A1 EP0621622 A1 EP 0621622A1 EP 94100836 A EP94100836 A EP 94100836A EP 94100836 A EP94100836 A EP 94100836A EP 0621622 A1 EP0621622 A1 EP 0621622A1
Authority
EP
European Patent Office
Prior art keywords
fuse
fuse holder
insulation displacement
holder according
contact
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.)
Withdrawn
Application number
EP94100836A
Other languages
German (de)
English (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.)
Vossloh Schwabe GmbH
Original Assignee
Vossloh Schwabe 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 Vossloh Schwabe GmbH filed Critical Vossloh Schwabe GmbH
Publication of EP0621622A1 publication Critical patent/EP0621622A1/fr
Withdrawn legal-status Critical Current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
    • H01H85/205—Electric connections to contacts on the base
    • 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
    • H01H85/202—Bases for supporting the fuse; Separate parts thereof for fuses with ferrule type end contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H01H1/585—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs and piercing the wire insulation
    • 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
    • H01H85/2035—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals for miniature fuses with parallel side contacts

Definitions

  • the invention relates to a fuse holder for at least one fuse insert, in particular a fuse link for low-voltage electrical circuits, having a support part made of electrically insulating material and receiving two contact points for each insert which is designed to be pluggable, and on which connecting devices for electrical lines which are electrically conductively connected are arranged with the contact points.
  • Fusible inserts in the form of so-called miniature fuses are used extensively to protect low-voltage electrical circuits.
  • the associated fuse holders generally have an essentially plate-shaped or strip-shaped carrier part which is provided with fastening devices and carries two approximately U-shaped fuse holder clips which are provided with cut-off soldering tags or are connected to associated screw-type terminal contacts.
  • fuse holders are not intended to be used in circuits whose wiring is carried out automatically by means of a program Line laying tool is manufactured.
  • the procedure is such that the line coming from a coil is laid between connection points of the preassembled device along a preprogrammed laying path and is also contacted fully automatically at the connection points and cut off if necessary.
  • the fuse holder mentioned at the outset is characterized according to the invention in that the carrier part is formed in the region of each pair of contact points in the form of a housing which delimits an elongated chamber which contains the pair of contact points and is open at the top, which is delimited at the end by housing parts containing insulation displacement contacts, and in that the chamber when the fuse link is inserted is at least partially closed by a holding means for the fuse link carrying releasable closure part.
  • connection devices are designed in the form of integrated insulation displacement contacts, which are arranged directly on the housing receiving the fuse link, which in turn ensures that the fuse link is held in a contact-safe manner.
  • the connection of the cables according to the so-called insulation displacement technology is particularly advantageous for automatic wiring. Since the fuse holder with its insulation displacement contacts forms a stable unit that can be arranged in the device so that it cannot rotate, the lines to be laid can be automatically contacted on its insulation displacement contacts without any special precautions or even manual work being necessary.
  • the new fuse holder is suitable for all low-voltage circuits; However, its use is particularly useful for luminaires for gas discharge lamps that are automatically wired.
  • the fuse holder has two insulation displacement contacts with mutually aligned insulation displacement slots, so that overall there is a narrow strip-shaped unit for each melting insert, which unit can lie directly in the pull of a straight section of the line guide.
  • the insulation displacement contacts themselves are generally each formed in one piece with contact means at the associated contact point for use in the melt, although a multi-part design is naturally possible in special cases.
  • the fuse holder for each insulation displacement contact can have an essentially L-shaped or U-shaped contact spring which carries an insulation displacement slot on one leg and the contact means for the melt insert on the other leg.
  • the chamber is completely closed by the closure part and the two front housing parts, so that together with the touch-safe design of the insulation displacement contact points it results in an overall touch-safe designed component.
  • the two front housing parts can also have aligned groove-like depressions in connection with the insulation displacement slots. In these groove-like depressions, the bare conductor parts lie at such a depth that contact with the test specimen from the outside is not possible.
  • the housing can advantageously be in several parts and at least one provided with fastening devices Have base part on which the front housing parts are arranged.
  • the fuse holder can be designed as a component for a single fuse link, but the carrier part can also have a plurality of parallel and / or successively arranged chambers for fuse links, which are closed by their own or common locking parts.
  • the housing can also be formed in one piece, as is also conceivable for the fuse holder to be part of a connecting terminal device, for example a terminal strip.
  • fuse insert here is not only understood to mean a fuse insert but also an insert in the form of a temperature switch which interrupts the current path when an overcurrent occurs, either until the power source is switched off and on again or until a bimetal element of the overcurrent switch heated by the overcurrent has reached normal temperature again.
  • the fuse holder is intended for fuse links in the form of so-called miniature fuses, one of which is indicated at 1 in FIG. 4. It has a glass tube containing the fusible conductor and two metallic contact caps 2 placed on the end of this.
  • the two contact caps 2 are assigned two contact points in the fuse holder, which are designed in the form of the usual, essentially U-shaped fuse holder terminals 3.
  • the two fuse holder terminals 3 are arranged on a carrier part made of insulated material, which is designed as a multi-part housing 4 and which has two latching feet 5 on its underside as a fastening device.
  • the housing 4 consists of an elongated rectangular lower part 5, which are opposed to each other in pairs and has mutually parallel side walls 6 and end walls 7, which give the lower part 4 a box-like shape.
  • a substantially frame-shaped upper housing part 8 is inserted, which has two parallel side walls 9, through which, together with the bottom wall of the lower part 5, an elongated chamber 10 open at the top is laterally delimited, housing parts 12 containing on both end faces by insulation displacement contacts 11 is completed.
  • the two housing parts 12 are connected to each other by the two side walls 9; the entire upper housing part 8 is inserted as a unit in the manner shown in FIGS. 1, 3 in the lower part 5 and locked with this at 13.
  • Each of the two housing parts 12 is essentially rectangular in cross section and is designed as a connecting terminal. It has two side wall parts 14 adjoining the side walls 9, which carry on their inside two molded ribs 15 lying opposite one another, which lie approximately midway between the two end faces of the housing part 12 and between them a slightly wedge-shaped or parallel-flanked insertion slot 16 ( Fig. 3) limit.
  • the insertion slot 16 is widened on its upper side by insertion bevels 17.
  • the ribs 15 extend from below to approximately the height of the insertion bevels 17, two opposing narrow grooves 18 which accommodate the two legs 20 of the insulation displacement contact 11 made of spring steel or bronze or another spring material and delimiting an insulation displacement slot 19.
  • the narrow plate-shaped insulation displacement contact 11 is embedded in the housing part 12 on all sides except for the cutting sections formed on the legs 20 and facing the insulation displacement slot 19 in the insulating material of the housing part, with its two legs 20 in the grooves 18 are guided limited movement.
  • the two contact springs 21 are simply placed on the lower part 5, whereupon the upper housing part 8 is placed with insulation displacement contacts 11 inserted into the slot 18 and locked in place with the lower part.
  • a groove-like depression 22 of rectangular cross-sectional shape adjoins the ribs 15 and thus the insertion slot 16 on both sides of each housing part 12, which opens next to the insertion slot 16 towards the top.
  • the two groove-like depressions 22 are arranged in alignment with one another and with the insertion slot 16. You are also limited above by an insertion bevel 23. 1, 3 show that the depth of each groove-like recess 22 is greater than that of the insertion slot 19 and that its width is also substantially greater than the width of the insertion slot.
  • the dimensions of the individual parts are selected so that when an insulated conductor 24 is pressed in through the insertion slot 16, the insulation in the insulation displacement slot 19 is cut open by the legs 20 of the insulation displacement contact 11, at the same time making a gas-tight contact between the insulation displacement contact 11 and that at the Terminal deforming conductor takes place. With its insulation, the pressed-in conductor is simultaneously clamped in the insertion slot 16 between the two ribs 15.
  • the connected line 24 fixed in this way runs through one of the groove-like recesses 22 (see FIG. 1), while its cut end 25 lies in the other groove-like recess 22.
  • the width and depth of the groove-like depressions 22 and their axial length are dimensioned in such a way that the cut off Protection against accidental contact at the end of the line. This means that the standardized feeler finger cannot test to the bare cut end 25 in the depth of the associated groove-like recess 22 when testing for safety against contact.
  • a closure element in the form of a cover plate 27 can be used, which has a handle 28 on one side and a molded retaining ring 29 on the opposite lower side, into which the Fine fuse 1 can be inserted.
  • the cover 27 When the cover 27 is placed on it, it completely closes off the chamber 10, whereby it is held immovably laterally by the end faces of the housing parts 12 and the holder part 29 which plunges into the chamber 10 and is guided between the side walls 9 and is frictionally clamped.
  • the cover 27 When the cover 27 is pressed in, the microfuse 1 is simultaneously pressed into the fuse holder terminals 3 with its two connection caps 2, so that the fuse holder is ready for operation.
  • a fuse holder is shown, which is only intended to hold a single miniature fuse 1. If there is a corresponding need, a plurality of such holders can also be combined to form a strip-shaped unit, as is indicated schematically in FIG. 2 at 30 by the outline of these holders.
  • the individual holders can be designed as separate parts with one another or in one piece as a uniform molded part.
  • the chambers 10 for the individual microfuses 11, which are arranged in parallel or one behind the other, can then be closed by their own cover 27 or by a common cover, the principle of which is similar to that of the cover 27 shown.

Landscapes

  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)
EP94100836A 1993-04-20 1994-01-21 Porte-fusible Withdrawn EP0621622A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934312780 DE4312780C2 (de) 1993-04-20 1993-04-20 Sicherungshalter
DE4312780 1993-04-20

Publications (1)

Publication Number Publication Date
EP0621622A1 true EP0621622A1 (fr) 1994-10-26

Family

ID=6485853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100836A Withdrawn EP0621622A1 (fr) 1993-04-20 1994-01-21 Porte-fusible

Country Status (4)

Country Link
EP (1) EP0621622A1 (fr)
JP (1) JPH07111129A (fr)
AU (1) AU5908894A (fr)
DE (1) DE4312780C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2863724B2 (ja) * 1995-11-01 1999-03-03 コビシ電機株式会社 ヒューズホルダ
DE19705411C2 (de) * 1997-02-13 1999-09-02 Thermik Geraetebau Gmbh Halter für einen temperaturabhängigen Schalter

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816193A (en) * 1955-01-27 1957-12-10 Midwest Mfg Corp Fuse holder
DE1963648A1 (de) * 1969-12-19 1971-06-24 Wickmann Werke Ag Schmelzsicherung
GB1380539A (en) * 1973-07-26 1975-01-15 Pye Ltd Electrical fuse mounting
DE7930161U1 (fr) * 1979-07-10 1980-02-21 Blaupunkt-Werke Gmbh, 3200 Hildesheim
US4333701A (en) * 1979-07-02 1982-06-08 Gilbert Mfg., Co., Inc. In line cartridge type fuse holder
DE3303471A1 (de) * 1983-02-02 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Reihenklemme
DE3523682A1 (de) * 1984-07-18 1986-01-30 Mcgraw-Edison Co., Rolling Meadows, Ill. Niederprofil-abbrech-sicherungsblock
US4648674A (en) * 1985-07-01 1987-03-10 Allied Corporation In-line fuseholder
EP0459958A2 (fr) * 1990-05-31 1991-12-04 Fittings For Industry S.R.L. Ensemble de fusible, en particulier pour circuits imprim˩s

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7820681U1 (de) * 1978-07-10 1980-02-21 Blaupunkt-Werke Gmbh, 3200 Hildesheim Sicherungskammer mit abnehmbarer Abdeckung
DE3032456A1 (de) * 1980-08-28 1982-04-01 Siemens AG, 1000 Berlin und 8000 München Sicherungsleiste zur halterung elektrischer schutzelemente

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816193A (en) * 1955-01-27 1957-12-10 Midwest Mfg Corp Fuse holder
DE1963648A1 (de) * 1969-12-19 1971-06-24 Wickmann Werke Ag Schmelzsicherung
GB1380539A (en) * 1973-07-26 1975-01-15 Pye Ltd Electrical fuse mounting
US4333701A (en) * 1979-07-02 1982-06-08 Gilbert Mfg., Co., Inc. In line cartridge type fuse holder
DE7930161U1 (fr) * 1979-07-10 1980-02-21 Blaupunkt-Werke Gmbh, 3200 Hildesheim
DE3303471A1 (de) * 1983-02-02 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Reihenklemme
DE3523682A1 (de) * 1984-07-18 1986-01-30 Mcgraw-Edison Co., Rolling Meadows, Ill. Niederprofil-abbrech-sicherungsblock
US4648674A (en) * 1985-07-01 1987-03-10 Allied Corporation In-line fuseholder
EP0459958A2 (fr) * 1990-05-31 1991-12-04 Fittings For Industry S.R.L. Ensemble de fusible, en particulier pour circuits imprim˩s

Also Published As

Publication number Publication date
AU5908894A (en) 1994-10-27
DE4312780C2 (de) 1995-05-11
DE4312780A1 (de) 1994-10-27
JPH07111129A (ja) 1995-04-25

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Effective date: 19950427