EP0162694A2 - Sicherungsdose - Google Patents

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Info

Publication number
EP0162694A2
EP0162694A2 EP85303547A EP85303547A EP0162694A2 EP 0162694 A2 EP0162694 A2 EP 0162694A2 EP 85303547 A EP85303547 A EP 85303547A EP 85303547 A EP85303547 A EP 85303547A EP 0162694 A2 EP0162694 A2 EP 0162694A2
Authority
EP
European Patent Office
Prior art keywords
clip
component
housing
clips
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85303547A
Other languages
English (en)
French (fr)
Other versions
EP0162694B1 (de
EP0162694A3 (en
Inventor
David Andrew 2 Lily Street Pearce
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP0162694A2 publication Critical patent/EP0162694A2/de
Publication of EP0162694A3 publication Critical patent/EP0162694A3/en
Application granted granted Critical
Publication of EP0162694B1 publication Critical patent/EP0162694B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • 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
    • H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
    • 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
    • H01H2085/2075—Junction box, having holders integrated with several other holders in a particular wiring layout
    • H01H2085/208—Junction box, having holders integrated with several other holders in a particular wiring layout specially adapted for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart

Definitions

  • This invention relates to a fusebox, and to a method of manufacturing a fusebox, particularly but not exclusively for use in a road vehicle wiring system.
  • fusebox there are many known forms of fusebox in which the fuse clips and their respective external terminals are parallel and are longitudinally adjacent one another, for example by being axially coextensive. Such an arrangement gives rise to a fusebox of relatively large overall height and it is an object of the present invention to provide a fusebox having, by comparison with such known fuseboxes, a reduced overall height.
  • a fusebox according to the invention includes an electrically insulating housing,.a plurality of fuse clips supported by the housing for receiving and making electrical connection to fuses, a plurality of terminals accessible at the exterior of the housing, and electrical connecting components electrically connecting the fuse clips to appropriate terminals, said fuse clips and terminals being positioned generally parallel and transversely adjacent one another, and each fuse clip being secured to its respective connecting component by means including at least one resilient finger pressed-out from a limb of the clip, each of said connecting components including a portion which is gripped between the finger and the limb of the respective clip, and each component and its respective clip including alignment means positioning the clip relative to the component when the clip is secured to the component by engagement of said portion between said limb and said finger.
  • each clip is soldered to its respective connecting component, the engagement of said portion of the component between the limb and the finger of its clip, and the alignment means of the clip and the component, serving to secure and position the clip relative to the component before soldering.
  • each terminal is soldered to its respective connecting component.
  • the housing is a two-part housing, said clips and said terminals extending through recesses in one of the housing parts and being trapped in position relative to the housing by engagement of the second housing part with said one housing part.
  • the invention further resides in a method of manufacturing a fusebox comprising the steps of:
  • the step of effecting a good electrical connection between each clip and its respective component comprises soldering the clip to the respective component.
  • the method includes the further steps of,
  • the fusebox includes a moulded synthetic resin housing 11 comprising upper and lower parts 12, 13 which are interengaged as a snap fit, and which are not intended to be separated once interengaged.
  • the fusebox further includes a plurality of fuse receiving clips 14, externally accessible blade terminals 15, and, electrical connecting components 16 providing electrical interconnections within the housing between associated fuse clips and external terminals.
  • the external blade terminals 15 may be of different sizes to accommodate different functions, for example power supply blade terminals may be of a larger dimension than the remaining blade terminals.
  • Each of the fuse receiving clips 14 is formed from a single sheet of brass and comprises a pair of parallel elongate limbs 17, 18 interconnected along part of one edge by a transversely extending web 19.
  • each clip 14 is, adjacent one end which will be referred to as the lowe: end, U-shaped in cross-section.
  • the upper end regions of the limbs 17, 18 are not interconnected by the web 19 and are curved inwardly to define jaws 21, 22 between which the blade like terminal of a fuse can be gripped.
  • Adjacent its lowermost end the limb 18 of each clip 14 has an integral resilient finger 23 pressed-out therefrom.
  • pressed-out is intended to indicate that the material of the limb l8 has been cut in, for example, an elongate U-shape and the finger bounded by the U-shaped slit, slot or shear line has then be pressed outwardly adjacent its root.
  • the finger 23 from a point adjacent its root, is inclined back towards the surface of the limb 18 except at its free end where it is turned outwardly.
  • the manufacture of the fusebox is as follows. Three frets 24, 25, 26 ( Figures 7, 8 and 9) are stamped from copper sheet, the frets 24 and 25 defining a plurality of electrical connecting components 16 joined together by integral necks 16a.
  • the connecting components 16 are intended to make electrical connection between clips 14 and terminal blades 15, and dependent upon the location within the fusebox, a component 16 may interconnect a single clip 14 with a single blade terminal 15, a single clip 14 with a plurality of blade terminals 16, a single blade terminal with a plurality of clips 14 (this variant not illustrated) or a plurality of blade terminals with a plurality of clips 14 ( Figure 9 to be described in more detail later).
  • Each component 16 cf each of the frets 24, 25 includes a clip receiving portion indicated by the suffix b and a blade terminal receiving portion indicated by the suffix c.
  • the frets are bent during, or immediately after, stamping from the blank sheet so that the portions 16b extend at right-angles to the portions 16c.
  • the portions 16c are formed with slots for receiving the shaped ends of the blade terminals 15, and the free end edges of the portions 16b are formed with a centrally disposed rectangular notch 16d.
  • a number of blade terminals 15 appropriate to a particular fret are placed in a jig with their fret connecting ends uppermost. The jig locates the blade terminals 15 parallel to one another in an orientation appropriate to the respective fret.
  • the fret with the portions 16c extending downwardly is then placed onto the blade terminals 15 so that the connecting end regions 15a of the blade terminals pass through the respective slots of the portions 16c of the fret and a flow soldering operation is used to effect a soldered connection between the portions 16c of the connecting components 16 and the blade terminals 15.
  • the blade terminals 15 extend from the component 16 parallel to, and in the same direction as the portions 16b, that is to say at right angles to the plane of the portions 16c.
  • the portions 16b and the blades 15 are parallel and transversely adjacent rather than being parallel and longitudinally adjacent as would be the case if the portion 16b had been bent to extend upwardly from the plane of the portions 16c.
  • each of the portions 16b is formed with a rectangular notch 16d in its free end edge, the notch 16d being seen clearly in, for example, Figure 13.
  • the width of the notch 16d is fractionally greater than the width of the finger 23 of each clip 14, and each clip 14 is engaged with its respective portion 16b by inserting the free end of the portion 16b between the finger 23 and the limb 18 of the respective clip 14.
  • the clip 14 is then moved slidingly along the length of the portion 16b until the root of its finger 23 seats within the notch 16d in the free end edge of the portion 16b.
  • the portion 16b is of course gripped between the finger 23 and the surface of the limb 18, and so the clip 14 is secured to the limb 16b, and, by virtue of the engagement of the root of the finger 23 in the notch 16d of the portion 16b the clip is held aligned with the respective portion 16b, that is to say is held parallel to and transversely adjacent the blade terminals 15.
  • each fret 24 or 25 equipped with blade terminals 15 and clips 14 can be handled as a single unit since all of the necks 16a are still in tact.
  • the frets together with blades and clips is then offered to the inner surface of the housing part 13 so that the blade terminals pass through appropriate slots 27 in the wall of the housing part 13 while the clips 14 are received in appropriately shaped recesses 28 of the housing.
  • the housing part 13 is formed in its lower surface with pockets 29 into which the blade terminals 15 extend. Thus it is the base of each of the pockets 29 which is formed with the slots 27. ( Figure 4).
  • the blade terminals 15 extend downwardly through the slots 27, the clips 14 extend downwardly into the recesses 28, and the connecting portions 16 between the clips 14 and the terminals 15 are seated upon inner surfaces of the housing part 13.
  • the housing part 13 does not provide a support surface immediately beneath the necks 16a of the fret and the next stage in the manufacture of the fusebox is to sever the connections between the component 16 by severing the necks 16a of the frets.
  • the fret 26 shown in Figure 9 differs from the frets 24 and 25 in that it is in effect a single connecting component 16 for interconnecting a pair of power blade terminals 15 and six clips 14. It will be noted also, with particular reference to Figure 13, that for convenience and economy of material the intermediate portion between the clip connecting portions 16b and the terminal connecting portion 16c lies with its plane parallel to that of the portion 16b rather than the portion 16c as is the case with the frets 24, 25.
  • the assembly of the clips 14 and terminals 15 to the fret 26 is exactly as described with reference to the frets 24 and 25, and the insertion of the fret equipped with blades and clips into the housing part 13 is also the same as described above.
  • the housing part 12 has barbed legs 12a ( Figure 4) which pass, as a snap-fit, through corresponding apertures in the housing part 13.
  • the housing part 12 is formed with ribs or pads which engage the connecting components 16 and trap them against the lower housing part 13 thereby, in co-operation with the slots 27 and recesses 28, holding the clips, terminals, and connecting components in position relative to the housing 11.
  • the upper housing part 12 is formed externally with a series of fuse receiving recesses 31 arranged, as can be seen in Figure 1, in two parallel rows.
  • the base of each of the recesses 31 is formed with a pair of slots 32 beneath each of which, and aligned with each of.- which, is a respective fuse receiving clip 14.
  • each fuse which comprises a fusable element and a pair of co-planar blade-like terminals, can be inserted into a respective recess 31 such that the blade terminals pass through the slots 32 of the recess 31 and into engagement with the appropriate fuse receiving clip positioned beneath the slot 32.
  • the upper surface of the housing part 12 is formed with a recess 33 for accommodating four spare fuses, and a retainer 34 for receiving a fuse extraction tool.
  • the housing 11 is formed with mounting lugs for mounting the fusebox in a convenient location in use. It will be recognised that the fuses are accessible from the top of the fusebox, and electrical connections between the fuses and the wiring harness of the vehicle are made by plug-in connections at the underside of the fusebox, the mating connectors being introduced into the pockets 29 to engage the blade terminals 15 therein.
  • each clip could be provided with a pair of spaced, parallel fingers each similar to a finger 23, and the free end edge of each of the portions 16b could be provided with a rectangular projection, rather than a rectangular notch, the rectangular projection passing between the roots of the two parallel pressed-out fingers to effect alignment of the clip relative to the portion 16b.
  • the positioning of the blade terminals 15 and the clips 14 so that they are parallel to one another, and at the same time are transversely adjacent one another effects a considerable saving in the overall height of the fusebox by comparison with known arrangements where fuse receiving clips and their respective blade terminals are parallel, but longitudinally adjacent, for example longitudinally co-extensive, since in this latter case the overall height will be at least the total of the length of the blade terminal added to the length of the fuse clip, whereas because in the above described arrangement the length of the fuse clip is alongside, or at least overlaps substantially, the length of the blade terminal the overall height will be less than the total of the length of the clip added to the length of the terminal.
  • the blade terminals and/or the clips can be provided with roughened or barbed edge regions which bite into the material of the lower housing part when the clips, blades and connecting portions are correctly positioned, to resist withdrawal.

Landscapes

  • Fuses (AREA)
EP19850303547 1984-05-25 1985-05-20 Sicherungsdose Expired EP0162694B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848413414A GB8413414D0 (en) 1984-05-25 1984-05-25 Fusebox
GB8413414 1984-05-25

Publications (3)

Publication Number Publication Date
EP0162694A2 true EP0162694A2 (de) 1985-11-27
EP0162694A3 EP0162694A3 (en) 1986-12-30
EP0162694B1 EP0162694B1 (de) 1989-08-09

Family

ID=10561505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850303547 Expired EP0162694B1 (de) 1984-05-25 1985-05-20 Sicherungsdose

Country Status (3)

Country Link
EP (1) EP0162694B1 (de)
DE (1) DE3572251D1 (de)
GB (1) GB8413414D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339846A3 (de) * 1988-04-23 1990-09-26 LUCAS INDUSTRIES public limited company Schmelzsicherungsdose
DE102004011490A1 (de) * 2004-03-09 2005-09-29 Lisa Dräxlmaier GmbH Sicherungsträger für Flachsicherungen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1601461A (en) * 1977-05-21 1981-10-28 Amp Inc Electrical junction box
DE3048451C2 (de) * 1980-12-22 1985-05-15 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal Zentralelektrik für Kraftfahrzeuge
DE3225319A1 (de) * 1982-07-07 1984-01-12 Zünderwerk Rudolf Brüggemann, 5300 Bonn Bausatz von bauelementen mit klemmhaltern zum loesbaren befestigen von sicherungselementen, insbesondere zur absicherung von stromkreisen in fahrzeugen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339846A3 (de) * 1988-04-23 1990-09-26 LUCAS INDUSTRIES public limited company Schmelzsicherungsdose
DE102004011490A1 (de) * 2004-03-09 2005-09-29 Lisa Dräxlmaier GmbH Sicherungsträger für Flachsicherungen

Also Published As

Publication number Publication date
EP0162694B1 (de) 1989-08-09
GB8413414D0 (en) 1984-07-04
DE3572251D1 (en) 1989-09-14
EP0162694A3 (en) 1986-12-30

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