EP0323472A1 - Fusible electrique combine a un connecteur - Google Patents

Fusible electrique combine a un connecteur

Info

Publication number
EP0323472A1
EP0323472A1 EP19870905910 EP87905910A EP0323472A1 EP 0323472 A1 EP0323472 A1 EP 0323472A1 EP 19870905910 EP19870905910 EP 19870905910 EP 87905910 A EP87905910 A EP 87905910A EP 0323472 A1 EP0323472 A1 EP 0323472A1
Authority
EP
European Patent Office
Prior art keywords
fuse
bridge
jacket
fuse unit
end portions
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Withdrawn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
EP19870905910
Other languages
German (de)
English (en)
Inventor
Börje SVANBERG
Lars Lenfeldt
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.)
Z- LYFTEN PRODUKTION AB
Z Lyften Produktion AB
Original Assignee
Z- LYFTEN PRODUKTION AB
Z Lyften Produktion AB
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 Z- LYFTEN PRODUKTION AB, Z Lyften Produktion AB filed Critical Z- LYFTEN PRODUKTION AB
Publication of EP0323472A1 publication Critical patent/EP0323472A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
    • 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
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/025—Structural association with a binding post of a storage battery
    • 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
    • H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
    • H01H85/0021—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices
    • H01H85/003—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices casings for the fusible element

Definitions

  • the object of the invention is to provide a fuse solving the above-mentioned problem in a manner satisfactory in all respects. Consequently, the fuse should be cheap to manufacture and have an insignificant space requirement. It will appear from the following description how this object can be realized according to the invention but, in few words, the subject of the invention can be defined as a fuse lacking a separate, stationary holder. This means that it can form a portion of a current conductor which portion is integrated with the conductor from an electrical and a mechanical point of view.
  • the current conductor does typically extend between on the one hand a current source, a storage battery or a generator, and on the other an electric load which typically but not exclusively is constituted by a electric motor installed in a vehicle.
  • Fig. 1 illustrates the principle of a fuse member according to the invention.
  • Fig. 2 shows a complete fuse for connection between a cable and a threaded bolt.
  • Fig. 3 corresponds to Fig. 2 but shows a fuse unit arranged for connection between a cable and the pole bolt of a battery.
  • Fig. 4 illustrates a second shape of the fuse member shown in Fig. 1.
  • Fig. 5 corresponds to Fig. 4 but illustrates a third fuse member shape .
  • the fuse member shown in Fig. 1 has two end portions 1 and 2 and an intermediate, narrow bridge portion 3 which will melt when the fuse is activated.
  • the bridge portion consists of a metal having a relatively low melting point and, at the end portions of the unit, the bridge ends have coatings 4, 5 consisting of a material of high electrical conductivity, preferably copper, and intended to reduce the transition resistance between the fuse and the components to which it is connected. To facilitate such connection the end portions have through holes 6, 7.
  • Fig. 2 shows a complete fuse unit the melt bridge of which can be shaped as shown in e.g. Fig. 1, Fig. 4 or Fig. 5. If one would use just the melt bridge and connect it between e.g. a bolt through hole 6 and the end of a flexible cable connected to end portion 5, melting of bridge 3 would cause end portions 1 and 2 to separate and, due to the flexibility of the cable, its separated end could fall down and, when connected to a voltage source, get into contact with earth or with some other component. This risk is eliminated in a complete fuse as shown in Fig. 2 since the bridge is there surrounded by a supporting jacket 8 of an insulating material, preferably a plastic.
  • the jacket is secured to both end portions, in this case by inbossments 9 engaging corresponding depressions in the end portions. It should however be underlined that the necessary form-stable connection between the jacket and each of the two end portions can be achieved in many other ways, such as by the use of guide pins.
  • jacket 8 For the purpose of making it possible conveniently to determine whether the fuse has been activated or not jacket 8 is provided with a central window 10 permitting direct observation of bridge 3.
  • Fig. 3 The only difference between Fig. 3 and Fig. 1 or 2 is that in Fig. 3 one of the end portions is shaped like a cable shoe 11 for connection to the pole bolt of a accumulator battery.
  • the fuse member illustrated in Fig. 4 does, on each side of melt bridge 3, exhibit through holes 12 for guide pins securing the jacket. Also according to the embodiment of Fig. 5 there are such holes 12 and, additionally, a central hole 13 in bridge 3.
  • the effective current-conducting cross- sectional area of the bridge will depend on the diameter of hole 13.
  • the diameter of hole 13 it is possible, using one and the same fuse member of a predetermined, standardized size, to vary the rated current intensity of the fuse within a relatively wide interval, for example 50-400 A.
  • This possibility is an advantage further reducing the manufacturing and marketing costs of fuses according to the invention.
  • it is suitable to provide the jacket 8 with information concerning the actual rated current of the fuse. Such information can be presented in many different ways, for example by variation of the colour of jacket 8 or by providing it with figures or symbols.
  • the fuse when the fuse is mounted inside a closed space adjacent to a accumulator battery, it can be gas sealed so that the spark formation occurring upon melting is prevented from igniting gas assembled inside the confined space. If in such cases one wishes to preserve the possibility of determining by direct observation whether bridge 3 has melted or not one does not use an open window 10 as shown in Figs. 2 and 3 but does instead use a jacket 8 consisting of a transparent material.

Landscapes

  • Fuses (AREA)

Abstract

Grâce au fusible électrique décrit, on remédie à la difficulté qui existe de fabriquer un fusible présentant un coût de production faible et un besoin d'espace insignifiant tout en étant capable de fonctionner à des intensités de courant nominales relativement élevées, notamment de l'ordre de 100 A d'amplitude. Grâce à ce fusible, il est pratiquement possible de protéger également des circuits électriques qui normalement ne sont pas protégés, tels que le circuit d'alimentation en courant du moteur électrique de démarrage d'un moteur de véhicule. Le fusible décrit ne comprend pas un porte-fusible ou un dispositif de montage séparé. Il forme au contraire une unité intégrée se composant d'un pont central fusible (3) s'étendant entre des parties d'extrémité (1, 2) en vue de la connexion du fusible dans un circuit électrique. Afin de préserver la forme et l'intégrité mécanique du fusible également lors d'une fusion, on prévoit une enveloppe centrale (8) servant à maintenir les parties d'extrémité (1, 2) l'une contre l'autre. Ladite enveloppe est de préférence conçue de façon à permettre une observation visuelle du pont (3) à travers la cloison de l'enveloppe.
EP19870905910 1986-08-29 1987-08-28 Fusible electrique combine a un connecteur Withdrawn EP0323472A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603649 1986-08-29
SE8603649A SE452675B (sv) 1986-08-29 1986-08-29 Anordning i form av en elektrisk sekring, som er kombinerad med ett anslutningsdon

Publications (1)

Publication Number Publication Date
EP0323472A1 true EP0323472A1 (fr) 1989-07-12

Family

ID=20365437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870905910 Withdrawn EP0323472A1 (fr) 1986-08-29 1987-08-28 Fusible electrique combine a un connecteur

Country Status (4)

Country Link
EP (1) EP0323472A1 (fr)
JP (1) JPH02500553A (fr)
SE (1) SE452675B (fr)
WO (1) WO1988001790A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5229739A (en) * 1992-02-21 1993-07-20 Littelfuse, Inc. Automotive high current fuse
DE9411394U1 (de) * 1994-07-14 1994-09-22 Wilhelm Pudenz GmbH, 27243 Dünsen Sicherungseinsatz und Sicherungshalter hierfür
ES2152366T3 (es) * 1994-08-24 2001-02-01 Whitaker Corp Terminal de bateria con fusible para vehiculos automoviles y empalme fusible para este.
DE19512113C2 (de) * 1995-04-04 1997-12-18 Gerhard Prof Dr Ing Babiel Formstabilisiertes Batteriekabel
DE19541141A1 (de) * 1995-10-27 1997-04-30 Siemens Ag Abgesicherte elektrische Verbindung zwischen der Lichtmaschine und der Batterie eines Kraftfahrzeuges
DE19615561C2 (de) * 1996-04-19 1998-12-10 Trw Fahrzeugelektrik Sicherungsbox für Kraftfahrzeuge
IT1282131B1 (it) * 1996-04-24 1998-03-12 Codognese Meccanotec Fusibile per correnti elevate,di tipo automobilistico.
JP2001093399A (ja) * 1999-09-28 2001-04-06 Taiheiyo Seiko Kk マルチスローブローヒューズ
JP2001110297A (ja) * 1999-10-05 2001-04-20 Yazaki Corp 大電流ヒューズ
DE19963622A1 (de) * 1999-12-29 2001-07-12 Bosch Gmbh Robert Elektrische Sicherung für Drehstromgeneratoren mit Gleichrichter
DE102006046784A1 (de) * 2006-10-02 2008-04-03 Lisa Dräxlmaier GmbH Verbindungsaufbau zum Verbinden eines Endabschnitts eines Batteriekabels mit einem Batteriepol einer Kraftfahrzeugbatterie
DE102012010483A1 (de) * 2012-05-26 2013-11-28 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Bürstensystem für einen Elektromotor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE374987C (de) * 1923-05-05 Arturo Baderna Einrichtung an elektrischen Sicherungen zur Vermeidung unerlaubter Energieentnahmen
US1605163A (en) * 1923-07-13 1926-11-02 Brandes Lab Inc Binding post
DE475493C (de) * 1924-08-05 1929-04-25 William Mills Connery Lufterhitzer fuer Feuerungsanlagen
US2479834A (en) * 1948-08-31 1949-08-23 Herbert Frederick Master starter cable
US3291944A (en) * 1963-05-16 1966-12-13 Tensioned fuse device
US3280281A (en) * 1964-10-19 1966-10-18 Essex Wire Corp In-line fuse
US4263574A (en) * 1978-03-08 1981-04-21 Mitsubishi Denki Kabushiki Kaisha Slit type current limiting fuse
SE454308B (sv) * 1980-02-14 1988-04-18 Labinal Forfarande for framstellning av en smeltsekring samt maskin for utforande av det nemnda forfarandet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8801790A1 *

Also Published As

Publication number Publication date
SE452675B (sv) 1987-12-07
SE8603649D0 (sv) 1986-08-29
JPH02500553A (ja) 1990-02-22
WO1988001790A1 (fr) 1988-03-10

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Legal Events

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

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17P Request for examination filed

Effective date: 19890221

AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19910301