EP0063207A1 - Fusible plat et méthode pour sa fabrication - Google Patents

Fusible plat et méthode pour sa fabrication Download PDF

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Publication number
EP0063207A1
EP0063207A1 EP82100508A EP82100508A EP0063207A1 EP 0063207 A1 EP0063207 A1 EP 0063207A1 EP 82100508 A EP82100508 A EP 82100508A EP 82100508 A EP82100508 A EP 82100508A EP 0063207 A1 EP0063207 A1 EP 0063207A1
Authority
EP
European Patent Office
Prior art keywords
current
webs
fuse
flat
carrying
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Withdrawn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
EP82100508A
Other languages
German (de)
English (en)
Inventor
Manfred Kaiser
Wulf Müller
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.)
Grote and Hartmann GmbH and Co KG
Original Assignee
Grote and Hartmann 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
Application filed by Grote and Hartmann GmbH and Co KG filed Critical Grote and Hartmann GmbH and Co KG
Publication of EP0063207A1 publication Critical patent/EP0063207A1/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Withdrawn legal-status Critical Current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
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/143—Electrical contacts; Fastening fusible members to such contacts
    • H01H85/147—Parallel-side 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
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/0411—Miniature fuses
    • H01H85/0415—Miniature fuses cartridge type
    • H01H85/0417—Miniature fuses cartridge type with parallel side contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • H01H2069/027—Manufacture of fuses using ultrasonic techniques

Definitions

  • the invention relates to a pluggable miniature electrical flat fuse of the type described, for example, in DE-OS 25 00 364.
  • Such fuses usually consist of two spaced apart, spaced apart, standardized tabs made of sheet metal stampings, the plug areas of which merge into one piece into current-carrying webs at the rear, the fuse element being arranged between the webs and the current-carrying webs and the Fusible conductors are surrounded by a plastic housing.
  • a fuse wire as a fuse element and, inter alia, to solder the wire to the current-carrying webs.
  • a tin-lead wire is mainly proposed as the wire material.
  • spring brass is specified in connection with an embodiment in which the wire is not soldered, but is clamped between spring elements arranged in the current-carrying webs.
  • Soldering the fuse wire has considerable disadvantages. Due to the aggression of the soldering flux as well as efflorescence and contamination, the electrical values of the fuse can be changed uncontrollably. Contamination, in particular, leads to so-called cold soldering points, which impair the characteristic values of the fuse.
  • the object of the invention is to arrange the fuse wire mechanically fixed and electrically defined in a flat fuse of the type described, without the characteristic of the wire being impaired.
  • the fuse element consists of a copper wire with a silver sheathing and the current-carrying webs and the plug tongues are made of brass, at least the current-carrying webs, but preferably also the plug tongues, are tin-plated on the surface and the fuse element on each flat side of the current-carrying webs is welded on.
  • a flat fuse is known from DE-GM 66 05 723, in which conduction cables made of metal strips are arranged on an insulating flat base body and a fuse wire is arranged between the strips. The wire should be welded on one line and soldered on the other. No statement is made about the type of materials.
  • the tinning of the surface of the stamped sheet metal parts has the surprising effect that a flawless weld can be carried out without losing the melting wire characteristic. There is no explanation for this effect of surface tinning. There was no reason for the tinning itself.
  • the use of the tinned brass and the silver-plated copper wire according to the invention also has the advantage that the coatings largely prevent corrosion, so that the electrical values of the fuse remain for a long period of time.
  • the flat fuse consists of the housing 1 and the securing element 2.
  • the securing element 2 has the two stamped sheet metal parts 3 arranged next to one another at a distance, which are arranged in mirror image to one another in one plane and have the same shape (FIG. 4).
  • Each sheet metal stamped part 3 is functionally divided into the tongue 4, which integrally merges into the current-carrying web 5.
  • the webs 5 are preferably made narrower than the tongues, with a cutting edge 6 each running outwards, merging into a cutting edge 7 leading obliquely upwards and the latter opening into the vertical cutting edge 8 of the web 5.
  • This design of the webs 5 creates a relatively wide, clear distance between the webs 5, so that a wide space for a relatively long fuse wire 9 is available.
  • the wide distance between the webs 5 also facilitates the welding of the fuse wire 9.
  • the fuse wire 9 is welded onto the flat side 11 of the webs 5 at the spot welding point 10.
  • the respective cutting edge 13 or 8 of the webs 5 is preferably chamfered by embossing, so that the embossing surfaces 12 which run obliquely to the respective edge result.
  • This spatial shape ensures that the edges 13 and 8 when handling the securing element, for. B. when inserted into the housing, not notching or cutting into the fuse wire 9 and thereby possibly impair its characteristic.
  • the securing element 2 is produced automatically by first punching out the contours of the parts 3 from a tin-plated sheet metal strip, two stamped sheet metal parts 3 belonging to one securing element being arranged in mirror image to one another.
  • FIG. 6 for the sake of a better overview, only two securing element blanks are shown, which are connected to one another via a material web 14 in the area of the contact tongues, the associated contact tongues of a securing element also being connected to one another by a material web 15.
  • the preliminary product of the securing element is introduced into the welding machine (not shown), the transport holes 16 in the material webs 15 and pressed-through guide lugs 17 in the material webs 14 being used appropriately by corresponding transport elements.
  • the wire to be welded is fed and welded endlessly in the welding machine. Then the unnecessary wire parts between the fuse element blanks are cut away. Then the material strips 14 and 15 continuously separated, the housing being automatically attached to each released securing element immediately thereafter. This procedure is very economical and entails low manufacturing costs for the new flat fuse.
  • the housing 1 consists of two halves, namely the lower housing half-shell 18 (FIG. 4) and the upper housing half-shell 19 (FIG. 5). Both housing half-shells are U-shaped in view, the current-carrying webs 5 and partly also the contact tongues 4 being clamped between the two U-legs 20.
  • the fusible wire 9 extends freely through the U-bar 21, the U-bar 21 being designed to be open at the top, so that the fusible wire 9 is visible (FIG. 3). In the other areas, the housing is almost completely closed.
  • the fixed mounting of the securing element 2 in the housing 1 is ensured by the pins 22 arranged in the lower housing half-shell 18, in that these pins are arranged at the edges of the stamped sheet metal parts 3 such that the cut edges of the stamped sheet metal parts can be supported against the pins 22.
  • semicircular centering recesses 23 are preferably provided in the stamped sheet metal parts 3 - as shown - (FIGS. 4 and 6).
  • the pins 22 pass through corresponding holes 24 in the upper housing half-shell 19, the two half-shells being sonicated with one another in the region of the pins 22.
  • the current-carrying webs 5 extend approximately to the free end of the U-legs 20, a hole 25 being provided in the end region of the U-legs 20 through which the respective web can be contacted for testing purposes.
  • guide webs 26 are also provided laterally, which serve to guide and mount the flat fuse in a plug connector (Fig. 1).
  • a circumferential grip strip 27 is arranged in the upper end region of the U-leg 20.

Landscapes

  • Fuses (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP82100508A 1981-04-16 1982-01-26 Fusible plat et méthode pour sa fabrication Withdrawn EP0063207A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813115435 DE3115435A1 (de) 1981-04-16 1981-04-16 "flachsicherung sowie verfahren zu ihrer herstellung"
DE3115435 1981-04-16

Publications (1)

Publication Number Publication Date
EP0063207A1 true EP0063207A1 (fr) 1982-10-27

Family

ID=6130302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100508A Withdrawn EP0063207A1 (fr) 1981-04-16 1982-01-26 Fusible plat et méthode pour sa fabrication

Country Status (3)

Country Link
US (1) US4417225A (fr)
EP (1) EP0063207A1 (fr)
DE (1) DE3115435A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002055A1 (fr) * 1983-10-31 1985-05-09 Parker-Hannifin Corporation Fusible a couteaux et son procede de fabrication
EP0198564A2 (fr) * 1985-04-16 1986-10-22 Littelfuse Tracor B.V. Assemblage à fusible embrochable
EP0248493A2 (fr) * 1986-06-03 1987-12-09 Littelfuse Tracor B.V. Fusible électrique
WO1996002929A1 (fr) * 1994-07-14 1996-02-01 Wilhelm Pudenz Gmbh Cartouche fusible et son support

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342144A1 (de) * 1983-11-22 1985-05-30 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetaetigter ueberstromschutzschalter
US5668521A (en) * 1995-03-22 1997-09-16 Littelfuse, Inc. Three piece female blade fuse assembly having fuse link terminal with a clip receiving portion
DE19512465A1 (de) * 1995-04-03 1996-10-10 Grote & Hartmann Elektrische Steckkontaktierungseinrichtung einer Flachsicherung
US5581225A (en) * 1995-04-20 1996-12-03 Littelfuse, Inc. One-piece female blade fuse with housing
US5929740A (en) * 1997-10-20 1999-07-27 Littelfuse, Inc. One-piece female blade fuse with housing and improvements thereof
US5886612A (en) * 1997-10-20 1999-03-23 Littelfuse, Inc. Female fuse housing
US6034589A (en) * 1998-12-17 2000-03-07 Aem, Inc. Multi-layer and multi-element monolithic surface mount fuse and method of making the same
JP3242095B2 (ja) 2000-05-16 2001-12-25 矢崎総業株式会社 ヒューズ
US7247269B2 (en) * 2003-07-21 2007-07-24 Biosense Webster, Inc. Method for making a spiral array ultrasound transducer
CN1957434B (zh) * 2004-03-05 2010-05-12 力特保险丝有限公司 汽车用叶片式熔断器
US20080224814A1 (en) * 2007-03-13 2008-09-18 Lear Corporation Electrical assembly and manufacturing method
US8674803B2 (en) * 2007-08-13 2014-03-18 Littelfuse, Inc. Moderately hazardous environment fuse
US7808362B2 (en) 2007-08-13 2010-10-05 Littlefuse, Inc. Moderately hazardous environment fuse
US8077007B2 (en) 2008-01-14 2011-12-13 Littlelfuse, Inc. Blade fuse
US8339235B2 (en) * 2008-08-06 2012-12-25 Beckert James J Housing securing apparatus for electrical components, especially fuses

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6605723U (de) * 1965-04-23 1970-06-25 Standard Elektrik Lorenz Ag Steckbare flachsicherung
US3696316A (en) * 1970-12-31 1972-10-03 Daito Tsushinki Kk Fuses and fuseholders
DE2208888A1 (de) * 1972-02-25 1973-09-06 Bosch Gmbh Robert Sicherungsanordnung fuer elektrische ausruestungen an kraftfahrzeugen
US3775724A (en) * 1973-03-05 1973-11-27 Gen Motors Corp Circuit protector
FR2199187A1 (fr) * 1972-09-13 1974-04-05 Rkg
DE2500364A1 (de) * 1974-01-14 1975-07-17 Littelfuse Inc Stecksicherung
US3913051A (en) * 1974-05-22 1975-10-14 Mc Graw Edison Co Protector for electric circuits
US4067103A (en) * 1977-02-07 1978-01-10 Littelfuse, Inc. Method of making a plug-in fuse
FR2422250A1 (fr) * 1978-04-03 1979-11-02 Mc Graw Edison Co Ensemble de fusible enfichable miniature et son procede de fabrication
WO1981001627A1 (fr) * 1979-12-03 1981-06-11 Beswick Kenneth E Ltd Procede de fabrication de fusibles electriques enfichables et fusibles produits par ce procede
DE2949432A1 (de) * 1979-12-08 1981-06-11 Georg Rudolf 8411 Zeitlarn Sillner Mehrteilige stecksicherung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090743B (de) * 1956-10-16 1960-10-13 Siemens Ag Geschlossener Schmelzeinsatz mit Kupferschmelzleitern
US4164725A (en) * 1977-08-01 1979-08-14 Wiebe Gerald L Three-piece solderless plug-in electrically conducting component
DE3128361A1 (de) * 1980-07-23 1982-09-23 Lucas Industries Ltd., Birmingham, West Midlands "verfahren zur herstellung von stecksicherungen"

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6605723U (de) * 1965-04-23 1970-06-25 Standard Elektrik Lorenz Ag Steckbare flachsicherung
US3696316A (en) * 1970-12-31 1972-10-03 Daito Tsushinki Kk Fuses and fuseholders
DE2208888A1 (de) * 1972-02-25 1973-09-06 Bosch Gmbh Robert Sicherungsanordnung fuer elektrische ausruestungen an kraftfahrzeugen
FR2199187A1 (fr) * 1972-09-13 1974-04-05 Rkg
US3775724A (en) * 1973-03-05 1973-11-27 Gen Motors Corp Circuit protector
DE2500364A1 (de) * 1974-01-14 1975-07-17 Littelfuse Inc Stecksicherung
US3913051A (en) * 1974-05-22 1975-10-14 Mc Graw Edison Co Protector for electric circuits
US4067103A (en) * 1977-02-07 1978-01-10 Littelfuse, Inc. Method of making a plug-in fuse
FR2422250A1 (fr) * 1978-04-03 1979-11-02 Mc Graw Edison Co Ensemble de fusible enfichable miniature et son procede de fabrication
WO1981001627A1 (fr) * 1979-12-03 1981-06-11 Beswick Kenneth E Ltd Procede de fabrication de fusibles electriques enfichables et fusibles produits par ce procede
DE2949432A1 (de) * 1979-12-08 1981-06-11 Georg Rudolf 8411 Zeitlarn Sillner Mehrteilige stecksicherung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002055A1 (fr) * 1983-10-31 1985-05-09 Parker-Hannifin Corporation Fusible a couteaux et son procede de fabrication
EP0198564A2 (fr) * 1985-04-16 1986-10-22 Littelfuse Tracor B.V. Assemblage à fusible embrochable
EP0198564A3 (en) * 1985-04-16 1989-03-08 Littelfuse Tracor B.V. Plug-in fuse assembly
EP0248493A2 (fr) * 1986-06-03 1987-12-09 Littelfuse Tracor B.V. Fusible électrique
EP0248493A3 (fr) * 1986-06-03 1989-12-13 Littelfuse Tracor B.V. Fusible électrique
WO1996002929A1 (fr) * 1994-07-14 1996-02-01 Wilhelm Pudenz Gmbh Cartouche fusible et son support

Also Published As

Publication number Publication date
US4417225A (en) 1983-11-22
DE3115435A1 (de) 1982-11-11

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB IT

17P Request for examination filed

Effective date: 19820830

ITCL It: translation for ep claims filed

Representative=s name: SOCIETA'ITALIANA BREVETTI

EL Fr: translation of claims filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19860205

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MUELLER, WULF

Inventor name: KAISER, MANFRED