EP1697958B1 - Fusible element provided with a flat insulating body - Google Patents

Fusible element provided with a flat insulating body Download PDF

Info

Publication number
EP1697958B1
EP1697958B1 EP04816254A EP04816254A EP1697958B1 EP 1697958 B1 EP1697958 B1 EP 1697958B1 EP 04816254 A EP04816254 A EP 04816254A EP 04816254 A EP04816254 A EP 04816254A EP 1697958 B1 EP1697958 B1 EP 1697958B1
Authority
EP
European Patent Office
Prior art keywords
shaft
insulating body
plug
fusible element
element according
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.)
Not-in-force
Application number
EP04816254A
Other languages
German (de)
French (fr)
Other versions
EP1697958A1 (en
Inventor
Henning Schulte
Jürgen SCHEELE
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.)
Littelfuse Automotive GmbH
Original Assignee
Littelfuse Automotive 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 Littelfuse Automotive GmbH filed Critical Littelfuse Automotive GmbH
Publication of EP1697958A1 publication Critical patent/EP1697958A1/en
Application granted granted Critical
Publication of EP1697958B1 publication Critical patent/EP1697958B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H85/04—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

Definitions

  • the invention relates to a fuse with a flat insulating body and a pair of outstanding insulating contacts of the contacts, which recordable in recordings of the insulator contact sections are connected to each other via a fusible link.
  • Fuse Inserts with flat insulating body are used with their contact tongues in fuse holder.
  • Each fuse holder forms a separation point in the line of a circuit and intact circuit bridges the fusible link the separation point. If a fault current occurs, the fuse conductor burns if necessary and interrupts the circuit.
  • the invention has for its object to simplify the assembly of the items to a fuse link, without sacrificing quality and especially cost increases in purchasing.
  • Tongue and groove have the advantage of improving the stability between the fuse plug designed as a flat connector and the insulating body. It ensures a safe wobble-free fit. Depending on the fit between the components and the frictional engagement can be increased in order to achieve a kind of locking.
  • the stability is also beneficial that extends the longitudinal groove over a predetermined part of the total length of the associated shaft portions.
  • the spring extends over a predetermined part of the total length of the plug-in shaft.
  • Tongue and groove can also be wedge-shaped, for example, to obtain a frictional engagement, which is the higher, the more adjusts the final installation position of these collapsed parts in the assembly of fuse link and insulator.
  • each free end of a contact portion of a contact tongue of a fuse link may have a central notch.
  • This middle notch makes it possible to spread the notched head end of the contact portions, for example by placing a corresponding pressure tool. As a result, the contact portions and thus the fuse link are locked to the insulator.
  • the insulating body 1 is an injection molded part made of plastic.
  • the insulator is shown here in approximately ten times magnification.
  • Fig. 2 illustrates how the spring 8 protrudes into the plug-in shaft 4, and that the spring 8 extends only over part of the length of the plug-in shaft 4.
  • Fig. 3 shows the electrically conductive fuse link made of metal, which is received in the insulating body 1.
  • the trained as a flat plug fuse insert consists of a juxtaposed to a pair of contacts 10 and 11 with lower contact tongues 12 and 13 and located in the upper part contact portions 14 and 15.
  • the contact portions 14 and 15 are electrically conductively connected by a fuse element 16 together.
  • Each contact portion 14, 15 is, as shown here, formed as a plug-in shaft 4 suitably pluggable shaft portion having at least one engagement 17 and 18 for the projecting first connecting element 6 and 7 of the insulating body 1.
  • a contact tongue 12 and 13 facing away from the free end of a contact portion 14 and 15, a Mitteleinkerbung 19 and 20 is arranged. By bending apart or spreading with a suitable tool, this center notch 19, 20 can be used for locking with the insulating body 1.
  • Fig. 4 shows a view of the trained as a flat plug fuse according to Fig. 3 in a section along the line IV - IV in Fig. 3 , Identical components are designated by the same reference numbers.
  • Fig. 4 indicates that the engagement 17, and thus also the engagement 18 in the contact portion 15 and in the contact portion 14, is formed as a longitudinal groove extending here over most of the total length of the associated contact portion 14 and 15 respectively.
  • Fig. 5 shows a side view of a fuse with a flat insulating body 1 with it received fuse insert, the contacts 10, 11 protrude from the insulating body 1, when formed as shank parts contact portions of the contacts 10, 11 are inserted into the corresponding receptacles of the insulating body 1 from below, said here by dashed lines indicated mutually corresponding connecting elements (engagement 17, 18 and protruding elevations 6, 7) form a positive connection.

Abstract

The invention relates to a fusible element provided with a flat insulating body and a pair of contacts which are projected therefrom and whose sections receivable in the reception areas of the insulating body are connected to each other by a fusing conductor wherein at least one reception area and the contact section associated thereto comprise form-fitting connectors corresponding to each other. The inventive fusible element makes it possible to simplify assembling of the individual elements forming it without affecting the quality and without additional costs.

Description

Die Erfindung bezieht sich auf einen Sicherungseinsatz mit flachem Isolierkörper und einem Paar aus dem Isolierkörper herausragender Kontakte, deren in Aufnahmen des Isolierkörpers aufnehmbare Kontaktabschnitte über einen Schmelzleiter miteinander verbunden sind.The invention relates to a fuse with a flat insulating body and a pair of outstanding insulating contacts of the contacts, which recordable in recordings of the insulator contact sections are connected to each other via a fusible link.

Sicherungseinsätze mit flachem Isolierkörper werden mit ihren Kontaktzungen in Sicherungshalter eingesetzt. Jeder Sicherungshalter bildet eine Trennstelle in der Leitung eines Stromkreises und bei intaktem Stromkreis überbrückt der Schmelzleiter die Trennstelle. Tritt ein Fehlerstrom auf, brennt der Schmelzleiter gegebenenfalls durch und unterbricht den Stromkreis.Fuse Inserts with flat insulating body are used with their contact tongues in fuse holder. Each fuse holder forms a separation point in the line of a circuit and intact circuit bridges the fusible link the separation point. If a fault current occurs, the fuse conductor burns if necessary and interrupts the circuit.

Ein Sicherungseinsatz nach dem Oberbegriff von Anspruch 1 wird in US-A-4 203 200 offenbart.A fuse link according to the preamble of claim 1 is in US-A-4,203,200 disclosed.

Bei bekannten Sicherungen besteht der jeweils einen Sicherungseinsatz tragende Isolierkörper aus dafür geeigneten Kunststoffen. Die Sicherungseinsätze sind zumeist Stanzteile aus Metall, die in den Isolierkörper einzubauen sind. Innerhalb einer Fertigungsstraße werden die vorgefertigten Isolierkörper und die ebenfalls vorgefertigten Sicherungseinsätze zusammengeführt und miteinander verbunden.In known fuses of each fuse-carrying insulating body consists of suitable plastics. The fuse links are usually stampings made of metal, which are to be installed in the insulating body. Within a production line, the prefabricated insulating body and also prefabricated fuse links are brought together and connected to each other.

Es ist bekannt, die Verbindung durch Heißprägen oder Ultraschallschweißen herzustellen, wobei eine Verriegelung der Sicherungseinsätze zumeist dadurch erfolgt, daß in ihren Kontaktabschnitten, die in den Isolierkörper aufzunehmen sind, Löcher oder Durchbrüche angeordnet sind, die vom durch aufgebrachte Hitze angeschmolzenen Material des Isolierkörpers während des Heißprägens oder Ultraschallschweißens durchdrungen werden. Nach dem Erkalten des Materials, z. B. Kunststoff, sitzt jeder Kontaktabschnitt, und folglich jeder Sicherungseinsatz, fest im Isolierkörper.It is known to make the connection by hot stamping or ultrasonic welding, wherein a locking of the fuse inserts usually takes place in that in their contact portions to be accommodated in the insulator, holes or openings are arranged, which is melted by the heat applied by the material of the insulating body during the Hot stamping or ultrasonic welding are penetrated. After cooling the material, for. As plastic, sitting each contact portion, and consequently each fuse link, fixed in the insulating body.

Abgesehen von dem verfahrens- und vorrichtungsmäßigen Aufwand zur Abwicklung von Heißprägevorgängen bzw. Ultraschweißvorgängen, mit den dadurch bedingten Kostennachteilen, hat das Verbinden mit Wärme auch den Nachteil, daß es zu erhöhten Ausschußraten bei der Fertigung von Sicherungseinsätzen kommen kann. Dies hängt damit zusammen, daß absolut gleichmäßig ablaufende Erwärmungs- und Erkaltungsvorgänge nicht gewährleistet werden können, beispielsweise allein schon durch schwankende Umgebungstemperaturen am Ort der Fertigung.Apart from the procedural and device overhead to handle hot stamping operations or Ultraschallweißvorgängen, with the consequent cost disadvantages, has the bonding with heat and the Disadvantage that it can lead to increased reject rates in the production of fuse links. This is due to the fact that absolutely uniformly occurring heating and cooling processes can not be guaranteed, for example, even by fluctuating ambient temperatures at the place of manufacture.

Der Erfindung liegt die Aufgabe zugrunde, das Zusammensetzen der Einzelteile zu einem Sicherungseinsatz zu vereinfachen, ohne dabei Qualitätseinbußen sowie insbesondere Kostensteigerungen in Kauf nehmen zu müssen.The invention has for its object to simplify the assembly of the items to a fuse link, without sacrificing quality and especially cost increases in purchasing.

Diese Aufgabe ist erfindungsgemäß durch die Merkmale des Schutzanspruchs 1 gelöst. Vorteilhafte Weiterbildungen und Ausgestaltungen ergeben sich aus den Unteransprüchen 2 bis 10.This object is achieved by the features of claim 1 protection. Advantageous developments and refinements emerge from the subclaims 2 to 10.

Die Verbindungselemente einer Formschlußverbindung lassen sich an den zusammenzufügenden Bauteilen ohne weiteres vor ihrer Zusammenführung anbringen. Beim Fertigen der Sicherungseinsätze mit ihren Kontakten in einer entsprechenden Fertigungsstraße sowie bei der Herstellung der Isolierkörper, beispielsweise im Spritzgußverfahren, lassen sich ohne weiteres die entsprechenden Verbindungselemente ausformen, die dann beim Zusammenführen der Einzelteile einer Sicherung die Formschlußverbindung eingehen. Dabei sind dann für die Verbindung keine zusätzlichen Prozesse, wie beispielsweise Heißprägen oder Ultraschallschweißen erforderlich. Die Sicherungseinsätze werden einfach mit dem Isolierkörper zusammengefügt, insbesondere zusammengesteckt.The connecting elements of a positive connection can be attached to the components to be assembled readily before their merger. When manufacturing the fuse links with their contacts in a corresponding production line as well as in the production of insulating, for example by injection molding, can be easily form the corresponding fasteners, which then enter the positive connection during the merge of the items of a fuse. In this case, no additional processes, such as hot stamping or ultrasonic welding are required for the connection. The fuse links are simply joined together with the insulating body, in particular put together.

Dies ist besonders einfach, da jede Aufnahme als Steckschacht ausgebildet ist und jeder Kontaktabschnitt des Sicherungseinsatzes als in den Steckschacht passend steckbares Schaftteil. In den Steckschacht kann ein erstes Verbindungselement vorspringen und das Schaftteil kann wenigstens einen Eingriff für dieses Verbindungselement aufweisen. Selbstverständlich ist auch die umgekehrte Anordnung möglich, daß nämlich am Steckschacht ein Eingriff ausgebildet wird für ein vom Schaftteil vorspringendes Verbindungselement.This is particularly simple, since each receptacle is designed as a plug-in shaft and each contact portion of the fuse link as fitting in the plug-in shaft part. A first connecting element can protrude into the plug-in shaft and the shaft part can have at least one engagement for this connecting element. Of course, the reverse arrangement is possible, namely that an engagement is formed on the plug-in shaft for a protruding from the shaft part connecting element.

Die Anordnung von Eingriffen an den Kontaktabschnitten der Kontakte eines Sicherungseinsatzes hat jedoch den Vorteil, daß der Material- und Arbeitsaufwand zur Herstellung der Sicherungseinsätze auf ein Minimum reduziert ist.However, the arrangement of interventions at the contact portions of the contacts of a fuse link has the advantage that the material and labor for the production of fuse links is reduced to a minimum.

Mit besonderem Vorteil ist jeder Eingriff eine in den jeweiligen Kontaktabschnitt eingeformte Längsnut. Jedes erste Verbindungselement ist sodann eine in den Steckschacht vorspringende Erhebung in Form einer zur Längsnut passenden Feder. Die Kontaktabschnitte der Kontakte des Sicherungseinsatzes können somit in den Isolierkörper eingeschoben werden, um die Sicherung herzustellen.With particular advantage, each engagement is a longitudinal groove formed in the respective contact section. Each first connecting element is then a projection projecting into the plug-in shaft in the form of a spring matching the longitudinal groove. The contact portions of the contacts of the fuse link can thus be inserted into the insulating body to produce the fuse.

Nut und Feder haben den Vorteil, die Stabilität zwischen dem als Flachstecker ausgebildeten Sicherungseinsatz und dem Isolierkörper zu verbessern. Es ist ein sicherer wackelfreier Sitz gewährleistet. Je nach Passung zwischen den Bauteilen kann auch der Reibschluß erhöht werden, um zu einer Art Verriegelung zu gelangen.Tongue and groove have the advantage of improving the stability between the fuse plug designed as a flat connector and the insulating body. It ensures a safe wobble-free fit. Depending on the fit between the components and the frictional engagement can be increased in order to achieve a kind of locking.

Der Stabilität ist außerdem auch förderlich, daß sich die Längsnut über einen vorbestimmten Teil der Gesamtlänge der zugeordneten Schaftabschnitte erstreckt. Ebenso erstreckt sich die Feder über einen vorbestimmten Teil der Gesamtlänge des Steckschachtes. Dadurch werden möglichst großflächige gegenseitige Anlagen ermöglicht und gleichzeitig eine kritische Materialschwächung vermindert.The stability is also beneficial that extends the longitudinal groove over a predetermined part of the total length of the associated shaft portions. Likewise, the spring extends over a predetermined part of the total length of the plug-in shaft. As a result, large-scale mutual systems are possible and at the same time reduces critical material weakening.

Nut und Feder können auch keilförmig ausgebildet sein, um beispielsweise einen Reibschluß zu erhalten, der um so höher wird, je mehr sich bei der Zusammenfügung von Sicherungseinsatz und Isolierkörper die endgültige Einbauposition dieser zusammengeschobenen Teile einstellt.Tongue and groove can also be wedge-shaped, for example, to obtain a frictional engagement, which is the higher, the more adjusts the final installation position of these collapsed parts in the assembly of fuse link and insulator.

Es ist auch möglich, vorbestimmte Bereiche der miteinander in Kontakt bringbaren Oberflächen von Steckschacht und jeweils zugeordnetem Schaftabschnitt mit die Reibung erhöhenden Oberflächenprofilierungen zu versehen. Solche Oberflächenprofilierungen können z. B. entgegen der Einschieberichtung sperrende, widerhakenähnlich ausgebildete Zähnchen sein.It is also possible to predetermined areas of the surfaces brought together of plug-in shaft and each associated shaft portion with the friction-increasing surface profiling to Mistake. Such surface profiling can z. B. against the insertion locking, barb-like teeth formed.

Um Isolierkörper und die als Flachstecker ausgebildeten Sicherungseinsätze miteinander in der endgültigen Einbauposition zu verriegeln, kann jedes freie Ende eines Kontaktabschnittes einer Kontaktzunge eines Sicherungseinsatzes eine mittlere Einkerbung aufweisen. Diese mittlere Einkerbung erlaubt es, das gekerbte Kopfende der Kontaktabschnitte zu spreizen, beispielsweise durch Aufsetzen eines entsprechenden Druckwerkzeuges. Dadurch werden die Kontaktabschnitte und damit der Sicherungseinsatz mit dem Isolierkörper verriegelt.In order to lock insulator and the fuse links designed as tabs together in the final installation position, each free end of a contact portion of a contact tongue of a fuse link may have a central notch. This middle notch makes it possible to spread the notched head end of the contact portions, for example by placing a corresponding pressure tool. As a result, the contact portions and thus the fuse link are locked to the insulator.

Ein Ausführungsbeispiel der Erfindung, aus dem sich weitere erfinderische Merkmale ergeben, ist in der Zeichnung dargestellt. Es zeigen:

Fig. 1
einen Isolierkörper einer Sicherung von oben,
Fig. 2
eine Ansicht des Isolierkörpers in einem Schnitt entlang der Linie II - II in Fig. 1,
Fig. 3
als einen als Flachstecker ausgebildeten Sicherungseinsatz mit über einen Schmelzleiter verbundenen Kontaktabschnitten in einer Seitenansicht,
Fig. 4
eine Ansicht des als Flachstecker ausgebildeten Sicherungseinsatzes gemäß Fig. 3 in einem Schnitt entlang der Linie IV - IV in Fig. 3, und
Fig. 5
eine Seitenansicht der kompletten, aus Isolierkörper und darin angeordnetem Sicherungseinsatz bestehenden Sicherung.
An embodiment of the invention, from which further inventive features arise, is shown in the drawing. Show it:
Fig. 1
an insulating body of a fuse from above,
Fig. 2
a view of the insulating body in a section along the line II - II in Fig. 1 .
Fig. 3
as a fuse-link designed as a flat plug with contact sections connected via a fusible conductor in a side view,
Fig. 4
a view of the formed as a flat plug fuse according to Fig. 3 in a section along the line IV - IV in Fig. 3 , and
Fig. 5
a side view of the complete, consisting of insulating and arranged therein fuse insert fuse.

Fig. 1 zeigt eine Draufsicht eines Isolierkörpers 1 für eine Sicherung. Der Isolierkörper 1 weist Aufnahmen 2 und 3 auf, die als Steckschächte 4 und 5 ausgebildet sind. In den Steckschacht 4 springt ein Verbindungselement 6 vor. Fig. 1 shows a plan view of an insulating body 1 for a fuse. The insulating body 1 has receptacles 2 and 3, which are designed as plug-in ducts 4 and 5. In the plug-in slot 4, a connecting element 6 projects.

In den Steckschacht 5 steht ebenfalls ein Verbindungselement 7 vor. Die Verbindungselemente 6 und 7 sind, wie es hier dargestellt ist, als angeformte Federn 8, 9 ausgebildet.In the plug-in slot 5 is also a connecting element 7 before. The connecting elements 6 and 7 are, as shown here, formed as molded springs 8, 9.

Der Isolierkörper 1 ist ein Spritzgußteil aus Kunststoff. Der Isolierkörper ist hier in etwa zehnfacher Vergrößerung dargestellt.The insulating body 1 is an injection molded part made of plastic. The insulator is shown here in approximately ten times magnification.

Fig. 2 zeigt eine Ansicht des Isolierkörpers 1 im Schnitt entlang der Linie II - II in Fig. 1. Gleiche Bauteile sind mit gleichen Bezugszahlen bezeichnet. Fig. 2 shows a view of the insulating body 1 in section along the line II - II in Fig. 1 , Identical components are designated by the same reference numbers.

Fig. 2 verdeutlicht, wie die Feder 8 in den Steckschacht 4 vorsteht, und daß sich die Feder 8 lediglich über einen Teil der Länge des Steckschachtes 4 erstreckt. Fig. 2 illustrates how the spring 8 protrudes into the plug-in shaft 4, and that the spring 8 extends only over part of the length of the plug-in shaft 4.

Fig. 3 zeigt den elektrisch leitfähigen Sicherungseinsatz aus Metall, der im Isolierkörper 1 aufgenommen wird. Der als Flachstecker ausgebildete Sicherungseinsatz besteht aus einem nebeneinander zu einem Paar angeordneten Kontakten 10 und 11 mit unteren Kontaktzungen 12 und 13 sowie im oberen Teil befindlichen Kontaktabschnitten 14 und 15. Die Kontaktabschnitte 14 und 15 sind durch einen Schmelzleiter 16 miteinander elektrisch leitend verbunden. Fig. 3 shows the electrically conductive fuse link made of metal, which is received in the insulating body 1. The trained as a flat plug fuse insert consists of a juxtaposed to a pair of contacts 10 and 11 with lower contact tongues 12 and 13 and located in the upper part contact portions 14 and 15. The contact portions 14 and 15 are electrically conductively connected by a fuse element 16 together.

Jeder Kontaktabschnitt 14, 15 ist, wie es hier dargestellt ist, als in den Steckschacht 4 passend steckbares Schaftteil ausgebildet, das wenigstens einen Eingriff 17 bzw. 18 für das vorspringende erste Verbindungselement 6 bzw. 7 des Isolierkörpers 1 aufweist. An jedem einer Kontaktzunge 12 bzw. 13 abgekehrten freien Ende eines Kontaktabschnittes 14 bzw. 15 ist eine Mitteleinkerbung 19 bzw. 20 angeordnet. Durch Auseinanderbiegen bzw. Spreizen mit einem geeigneten Werkzeug kann diese Mitteleinkerbung 19, 20 zur Verriegelung mit dem Isolierkörper 1 genutzt werden.Each contact portion 14, 15 is, as shown here, formed as a plug-in shaft 4 suitably pluggable shaft portion having at least one engagement 17 and 18 for the projecting first connecting element 6 and 7 of the insulating body 1. At each of a contact tongue 12 and 13 facing away from the free end of a contact portion 14 and 15, a Mitteleinkerbung 19 and 20 is arranged. By bending apart or spreading with a suitable tool, this center notch 19, 20 can be used for locking with the insulating body 1.

Fig. 4 zeigt eine Ansicht des als Flachstecker ausgebildeten Sicherungseinsatzes gemäß Fig. 3 in einem Schnitt entlang der Linie IV - IV in Fig. 3. Gleiche Bauteile sind mit gleichen Bezugszahlen bezeichnet. Fig. 4 shows a view of the trained as a flat plug fuse according to Fig. 3 in a section along the line IV - IV in Fig. 3 , Identical components are designated by the same reference numbers.

Fig. 4 läßt erkennen, daß der Eingriff 17, und damit ebenso der Eingriff 18 im Kontaktabschnitt 15 bzw. im Kontaktabschnitt 14, als Längsnut ausgebildet ist, die sich hier über den größten Teil der Gesamtlänge des zugeordneten Kontaktabschnittes 14 bzw. 15 erstreckt. Fig. 4 indicates that the engagement 17, and thus also the engagement 18 in the contact portion 15 and in the contact portion 14, is formed as a longitudinal groove extending here over most of the total length of the associated contact portion 14 and 15 respectively.

Fig. 5 zeigt eine Seitenansicht einer Sicherung mit flachem Isolierkörper 1 mit darin aufgenommenem Sicherungseinsatz, dessen Kontakte 10, 11 aus dem Isolierkörper 1 herausragen, wenn die als Schaftteile ausgebildeten Kontaktabschnitte der Kontakte 10, 11 in die entsprechenden Aufnahmen des Isolierkörpers 1 von unten gesteckt sind, wobei die hier durch gestrichelte Linien angedeuteten miteinander korrespondierenden Verbindungselemente (Eingriff 17, 18 bzw. vorspringende Erhebungen 6, 7) eine Formschlußverbindung eingehen. Fig. 5 shows a side view of a fuse with a flat insulating body 1 with it received fuse insert, the contacts 10, 11 protrude from the insulating body 1, when formed as shank parts contact portions of the contacts 10, 11 are inserted into the corresponding receptacles of the insulating body 1 from below, said here by dashed lines indicated mutually corresponding connecting elements (engagement 17, 18 and protruding elevations 6, 7) form a positive connection.

Claims (8)

  1. Fusible element provided with a flat insulating body (1) and a pair of contacts (10, 11) protruding from the insulating body, the contact portions (14, 15) thereof which may be received in receivers (2, 3) of the insulating body being connected to one another via a fusible conductor (16), at least one of the receivers as well as the contact portion respectively associated therewith comprising connecting elements (6, 7, 17, 18) of a positive connection corresponding to one another, each receiver (2, 3) being formed as a plug-in shaft (4, 5) and each contact portion (14, 15) being formed as a shaft part which may be plugged into and which fits into the plug-in shaft (4, 5),
    characterised in that
    predetermined regions of the surfaces of the plug-in shaft (4, 5) and the respectively associated shaft portion (14, 15) which may be brought into contact with one another comprise surface profiling increasing the friction and each free end of a contact portion (14, 15) facing away from a contact tongue (12, 13) has a central notch (19, 20).
  2. Fusible element according to Claim 1, characterised in that at least one first connecting element (6, 7) protrudes into the plug-in shaft (4, 5).
  3. Fusible element according to one of Claims 1 and 2, characterised in that each shaft part has at least one engagement (17, 18) for the protruding first connecting element (6, 7).
  4. Fusible element according to Claim 3, characterised in that each engagement (17, 18) is an integrally formed longitudinal groove.
  5. Fusible element according to one of Claims 1 to 3, characterised in that each first connecting element (6, 7) is a raised portion protruding into the plug-in shaft (4, 5) in the form of a tongue (8, 9) which fits into the engagement (17, 18) present as a longitudinal groove.
  6. Fusible element according to one of the preceding claims, characterised in that the engagement (17, 18) present as a longitudinal groove extends over a predetermined part of the entire length of the respectively associated shaft portion (14, 15).
  7. Fusible element according to one of Claims 1 to 5, characterised in that the connecting element (6, 7) present as a tongue (8, 9) extends over a predetermined part of the entire length of the plug-in shaft (4, 5).
  8. Fusible element according to Claim 1, characterised in that the surface profiling comprises small teeth formed in the manner of barbs, blocking movement counter to the direction of insertion of the contacts in the insulating body (1).
EP04816254A 2003-12-13 2004-12-13 Fusible element provided with a flat insulating body Not-in-force EP1697958B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20319350U DE20319350U1 (en) 2003-12-13 2003-12-13 Fuse insert with flat insulating body
PCT/DE2004/002729 WO2005057602A1 (en) 2003-12-13 2004-12-13 Fusible element provided with a flat insulating body

Publications (2)

Publication Number Publication Date
EP1697958A1 EP1697958A1 (en) 2006-09-06
EP1697958B1 true EP1697958B1 (en) 2010-06-02

Family

ID=31984835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04816254A Not-in-force EP1697958B1 (en) 2003-12-13 2004-12-13 Fusible element provided with a flat insulating body

Country Status (6)

Country Link
US (1) US7515030B2 (en)
EP (1) EP1697958B1 (en)
JP (1) JP2007514284A (en)
AT (1) ATE470233T1 (en)
DE (3) DE20319350U1 (en)
WO (1) WO2005057602A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8077007B2 (en) * 2008-01-14 2011-12-13 Littlelfuse, Inc. Blade fuse
US20100127817A1 (en) * 2008-11-25 2010-05-27 Banzo Juan I Fuse assembly and fuse therefor

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040175A (en) * 1974-01-14 1977-08-09 Littelfuse, Inc. Method of making a miniature plug-in fuse with fragile fuse link
US3962782A (en) * 1974-01-14 1976-06-15 Littelfuse, Inc. Method of making a miniature plug-in fuse
US3909767A (en) * 1974-01-14 1975-09-30 Littelfuse Inc Miniature plug-in fuse
US4203200A (en) * 1977-08-01 1980-05-20 Wiebe Gerald L Method and apparatus for making an encapsulated plug-in blade fuse
US4224592A (en) * 1978-04-03 1980-09-23 Mcgraw-Edison Company Miniature plug-in fuse assembly and method of manufacture
DE3014875A1 (en) 1980-04-17 1981-10-22 Siemens AG, 1000 Berlin und 8000 München CONTACT CARRIER
US4349804A (en) * 1981-05-29 1982-09-14 Mcgraw-Edison Fuse assembly for a miniature plug-in fuse
US4394638A (en) * 1982-07-21 1983-07-19 Essex Group, Inc. Miniature plug-in fuse assembly and method of making a fuse element therefor
US4499447A (en) * 1983-06-17 1985-02-12 Guim Multi-Tech Corporation Blade terminal fuses with integrity indicator
US4580124A (en) * 1984-08-17 1986-04-01 Littelfuse, Inc. Plug-in fuse assembly
US4604602A (en) * 1984-08-17 1986-08-05 Littelfuse, Inc. Plug-in fuse assembly with stackable housing
US4635023A (en) * 1985-05-22 1987-01-06 Littelfuse, Inc. Fuse assembly having a non-sagging suspended fuse link
US4670729A (en) * 1986-06-03 1987-06-02 Littelfuse, Inc. Electrical fuse
US4998086A (en) 1988-08-09 1991-03-05 Amp Incorporated Fuse assembly and method of manufacture
AR246379A1 (en) * 1991-10-09 1994-07-29 Amp Inc Electric fuse for blade.
JP3442159B2 (en) * 1994-09-27 2003-09-02 矢崎総業株式会社 fuse
US5598138A (en) * 1995-01-03 1997-01-28 Jaronczyk, Jr.; Joseph P. Fault-indicating blade fuse
US5818320A (en) * 1996-10-08 1998-10-06 Yazaki Corporation Fuse assembly with removable fusible element
US6577222B1 (en) * 1999-04-02 2003-06-10 Littelfuse, Inc. Fuse having improved fuse housing
JP2001250466A (en) * 2000-03-03 2001-09-14 Taiheiyo Seiko Kk Fuse element and fuse mounting device
JP3242095B2 (en) * 2000-05-16 2001-12-25 矢崎総業株式会社 fuse
JP2001325875A (en) * 2000-05-18 2001-11-22 Yazaki Corp Plug-in type fuse
JP4104817B2 (en) * 2000-11-22 2008-06-18 太平洋精工株式会社 Blade type fuse

Also Published As

Publication number Publication date
DE502004011250D1 (en) 2010-07-15
DE112004002753D2 (en) 2006-11-23
US20070080772A1 (en) 2007-04-12
JP2007514284A (en) 2007-05-31
WO2005057602A1 (en) 2005-06-23
DE20319350U1 (en) 2004-03-04
EP1697958A1 (en) 2006-09-06
ATE470233T1 (en) 2010-06-15
US7515030B2 (en) 2009-04-07

Similar Documents

Publication Publication Date Title
DE4419055C2 (en) Chip fuse
DE4439105C1 (en) Electrical connector
DE2500364A1 (en) PLUG FUSE
DE102004052476A1 (en) fuse assembly
EP2475057B2 (en) Cable holding device
EP3259807B1 (en) Electric terminal block
EP1429423B1 (en) Electrical plug connector having a casing and a heavy current contact
DE2124865A1 (en) Electrical plug
DE3040884C2 (en) Protection scheme
DE19949387A1 (en) Connection terminal has insulating body in which contact element is mounted, and contact part inserted in mounting hole from inside, secured against inward movement by contact element
DE102014003113B3 (en) Plug connection part with clip elements
DE202016100323U1 (en) Cross connector for terminal blocks
DE4431274C2 (en) Method of manufacturing an electrical installation device and electrical installation device
DE2603151C3 (en) Component for switching and / or isolating strips in distributors for telecommunications systems
DE19963268A1 (en) Fuse strip, in particular, for fuse boxes of motor vehicles comprises contact pairs which are formed as respective opposing extensions of the integral fuse zone
EP1697958B1 (en) Fusible element provided with a flat insulating body
DE202018006251U1 (en) Hermaphroditic contact element
DE102015110171B4 (en) ELECTRICAL FUSE FOR A VEHICLE AND EQUIPPED ELECTRICAL POWER DISTRIBUTOR
DE102019112532B4 (en) Connector with a coding device
DE3037642C2 (en)
DE102010046840B4 (en) Flat fuse and fuse carrier
DE102006020045A1 (en) Adapter for e.g. socket assembly, has electrical contacts provided on electrical contact units that are mechanically and electrically connected with another, where one unit has circuit board contact unit to contact board connector
DE102018125366A1 (en) Contact socket, socket strip and electrical assembly
DE4445658C2 (en) Method for equipping a base strip of a connector for a printed circuit board with contact connections
EP2425498B1 (en) Interconnect system for a printed circuit board

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20060701

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20080414

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LITTELFUSE AUTOMOTIVE GMBH

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004011250

Country of ref document: DE

Date of ref document: 20100715

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100903

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101002

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101004

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

26N No opposition filed

Effective date: 20110303

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502004011250

Country of ref document: DE

Effective date: 20110302

BERE Be: lapsed

Owner name: LITTELFUSE AUTOMOTIVE G.M.B.H.

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101213

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110103

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101213

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 470233

Country of ref document: AT

Kind code of ref document: T

Effective date: 20101213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101203

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100913

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151213

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20170710

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20191203

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20191209

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004011250

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201213