US3871738A - Fuse contacts - Google Patents

Fuse contacts Download PDF

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Publication number
US3871738A
US3871738A US420181A US42018173A US3871738A US 3871738 A US3871738 A US 3871738A US 420181 A US420181 A US 420181A US 42018173 A US42018173 A US 42018173A US 3871738 A US3871738 A US 3871738A
Authority
US
United States
Prior art keywords
contact
channel
bight
plane
walls
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.)
Expired - Lifetime
Application number
US420181A
Other languages
English (en)
Inventor
Helen Dechelette
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of US3871738A publication Critical patent/US3871738A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/2025—Bases for supporting the fuse; Separate parts thereof for fuses with conical end contacts, e.g. fuses used on motor vehicles

Definitions

  • ABSTRACT An electrical contact for a cartridge fuse, the contact being stamped and formed from resilient sheet metal and comprising two superimposed strips forming a composite leg having a mounting foot at one end, in which the mounting foot has a surface facing generally away from the contact portion for engagement with an upper surface of a mounting board, and an axis of a cone of the contact converging with the plane in which the surface of the mounting foot is disposed at a location spaced from a side of the contact at which the end portions are located.
  • This invention relates to a contact for a cartridge fuse having conical end caps formed from electrically conductive metal.
  • the present invention is a unitary electrical contact for a cartridge fuse having conical conductive ends, the contact being stamped and formed from resilient sheet metal and comprising two superposed strips forming a composite leg having the mounting foot at one end, the strips being bent apart at the other end and being integrally joined at the other end by a U channel receptacle having two spaced walls joined by a bight, the channel extending generally along the axis of the composite leg with the walls located in planes generally parallel to the plane of the composite leg, each channel wall being bent at an end portion remote from the bight away from the other wall into the form of a part surface of a cone the apex of which is located between the bight and the end portions and the axis of which extends from the apex away from the bight and between the channel walls, the two part-conical surfaces forming a contact portion.
  • FIG. 1 is a perspective view of two contacts according to the invention, a cartridge fuse and a printed circuit board prior to assembly of the various components;
  • FIG. 2 is a view looking in the direction of arrow A in FIG. 1, of one of the contacts of- FIG. I mounted on the printed circuit board;
  • FIG. 3 is a view looking in the direction of the arrow B in FIG. 1 of the two contacts of FIG. I mounted on the printed circuit board prior to full insertion ofa fuse;
  • FIG. 4 is a view similar to FIG. 3 but showing the contacts after full insertion of the fuse.
  • a central portion comprises two superposed strips 11 forming a composite leg 12.
  • the strips 11 are bent apart at the upper end of the composite leg to form two halves ofa stop 13 the purpose of which is explained below.
  • the strips 11 are integrally joined at the upper end by a U channel receptacle 15 having two spaced walls 16 joined by a bight 17, the channel extending generally along the axis of the leg 12 with the walls 16 located in planes generally parallel to the plane of the leg 12.
  • each channel wall 16 is bent away from the other wall at 20 into the form of a part surface of a cone the apex of which is located between the bight 17 and the free ends 19 of the channel walls 16 and the axis 21 of which extends from the apex away from the bight 17 and generally parallel to and between the walls 16.
  • the two part-conical surfaces 20 define together with the stop 13 a contact portion for receiving an end cap of a fuse as described below.
  • the free ends 19 of the channel walls 16 are bent away from each other at portions 22 remote from the leg 12 to form a flared mouth best seen in FIG. 2.
  • the strips 11 are bent apart at 23 the lower end of the leg 12 and are integrally joined at the lower end by a U channel 24 generally aligned with the receptacle 15.
  • the channel 24 has a bight 25 joining two spaced walls 26 which have free ends 27 projecting laterally beyond the leg 12.
  • the free lower ends of the strips 11 are formed as spaced tabs 28 extending in directions parallel to the leg 12.
  • each contact 10 is applied to the upper surface 31 of the board 29 with its two tabs 28 received through respective holes 30 and with the lower edge 32 of the U channel 24 hard against the upper surface 31 as shown most clearly in FIGS. 3 and 4.
  • the tabs 28 are then bent upwardly and towards each other against the lower surface 33 of the board as shown in FIG. 2 after which the tabs are soldered as shown at 34 to conductors on the lower surface 33.
  • the axes 21 about which the partconical surfaces 20 are generated converge between the two contacts 10 in a direction towards the board 29.. This is brought about because the lower edge 32 of the U channel 24 of each contact .10 is in a plane which converges with the axis 21 of the associated part conical surfaces 20 at the side of the contact at which the receptacle 15 opens into.
  • FIG. 1 shows a conventional form of cartridge fuse 35 which is formed with an insulating body 36 and two conical conductive ends 37 joined. together by a fusible conductive strip 38.
  • the fuse 35 is inclined with one end 37 nearer the board 28 than the other, and the one end 37 is introduced into a receptacle 15.
  • the other end 37 (the right-hand end as seen in FIG. 3) is forced towards the board into the flared mouth of the receptacle 15 of the right-hand contact 10, and the channel walls 16 flex apart allowing the other end 37 to snap into engagement with the part-conical surfaces 20 and the roof 13.
  • the receptacles may be manufactured in strip form and applied by automatic insertion tooling to the printed circuit boards.
  • a unitary electrical contact for a cartridge fuse having conical conductive ends the contact being stamped and formed from resilient sheet metal and comprising two superposed strips having a contiguous portion forming a composite leg disposed in a first plane and having a mounting foot at one end, the strips being bent apart at the other end and being integrally joined at the other end by a U channel receptacle having two spaced walls joined by a bight, the channel extending generally along the axis of the composite leg with the walls located in second and third planes generally parallel to the first plane, each channel wall being bent at an end portion remote from the bight away from the other wall into the form of a part surface of a cone the apex of which is located between the bight and the end portions and the axis of which extends from the apex away from the bight and between the channel walls, the two part-conical surfaces forming a contact portion.

Landscapes

  • Fuses (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US420181A 1972-12-14 1973-11-29 Fuse contacts Expired - Lifetime US3871738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7244595A FR2210818B1 (xx) 1972-12-14 1972-12-14

Publications (1)

Publication Number Publication Date
US3871738A true US3871738A (en) 1975-03-18

Family

ID=9108703

Family Applications (1)

Application Number Title Priority Date Filing Date
US420181A Expired - Lifetime US3871738A (en) 1972-12-14 1973-11-29 Fuse contacts

Country Status (14)

Country Link
US (1) US3871738A (xx)
JP (1) JPS5647658B2 (xx)
AR (1) AR197360A1 (xx)
AT (1) AT325699B (xx)
BE (1) BE808562A (xx)
BR (1) BR7309662D0 (xx)
DE (1) DE2360822C2 (xx)
ES (1) ES198487Y (xx)
FR (1) FR2210818B1 (xx)
GB (1) GB1407326A (xx)
IT (1) IT1000940B (xx)
NL (1) NL176986C (xx)
SE (1) SE385751B (xx)
YU (1) YU323773A (xx)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995929A (en) * 1974-11-05 1976-12-07 General Motors Corporation Female terminal
US4084146A (en) * 1976-10-13 1978-04-11 Ford Aerospace & Communications Corporation Fuse assembly
US4264117A (en) * 1979-12-21 1981-04-28 Amp Incorporated Socket for wedge base incandescent lamp
US4556274A (en) * 1983-12-21 1985-12-03 Motorola, Inc. Fuse and mounting arrangement for printed circuit board application
US4973257A (en) * 1990-02-13 1990-11-27 The Chamberlain Group, Inc. Battery terminal
US5239282A (en) * 1991-10-09 1993-08-24 Amp Incorporated Electrical blade fuse
US20040077231A1 (en) * 2002-03-07 2004-04-22 Tomonori Harada Tabular terminal-use female terminal
US20060197647A1 (en) * 2005-03-03 2006-09-07 Whitney Stephen J Thermally decoupling fuse holder and assembly
US20070093089A1 (en) * 2005-10-20 2007-04-26 Ford Douglas K Relay-fuse system and method thereof
US20080254688A1 (en) * 2007-02-26 2008-10-16 Robert Bogursky Electronic component socket and methods for making and using the same
US20080278276A1 (en) * 2007-05-10 2008-11-13 Banzo Juan I System and method for interconnecting a plurality of printed circuits

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1119608B (it) * 1979-12-21 1986-03-10 Burndy Electra Spa Elemento di contatto protafusibile particolarmente per circuiti stampati e piastre di itnerconnessione
US5519586A (en) * 1994-10-11 1996-05-21 Modicon, Inc. Fuse holder assembly having improved fuse clips for mounting on a printed circuit board
DE19535234B4 (de) * 1995-09-22 2006-06-22 Robert Bosch Gmbh Haltevorrichtung zur Aufnahme von wenigstens einer Sicherung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338835A (en) * 1943-01-14 1944-01-11 Gen Electric Lamp base and socket
US2621227A (en) * 1950-03-04 1952-12-09 Illinois Tool Works Fuse clip device
US3348189A (en) * 1965-11-24 1967-10-17 Amp Inc Electrical connector
US3360765A (en) * 1966-05-27 1967-12-26 British Lighting Ind Ltd Mounting of tungsten-halogen lamps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE333316C (de) * 1919-03-16 1921-02-22 Robert Bosch Akt Ges Schmelzsicherung
GB634752A (en) * 1947-11-22 1950-03-29 Watson Electrical Company Ltd Improvements in fuses for electric circuits
GB897574A (en) * 1959-06-24 1962-05-30 Lewis Spring Company Ltd An improved method of and means for mounting cylindrical or cartridge shaped components on panels bearing printed electric circuits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338835A (en) * 1943-01-14 1944-01-11 Gen Electric Lamp base and socket
US2621227A (en) * 1950-03-04 1952-12-09 Illinois Tool Works Fuse clip device
US3348189A (en) * 1965-11-24 1967-10-17 Amp Inc Electrical connector
US3360765A (en) * 1966-05-27 1967-12-26 British Lighting Ind Ltd Mounting of tungsten-halogen lamps

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995929A (en) * 1974-11-05 1976-12-07 General Motors Corporation Female terminal
US4084146A (en) * 1976-10-13 1978-04-11 Ford Aerospace & Communications Corporation Fuse assembly
US4264117A (en) * 1979-12-21 1981-04-28 Amp Incorporated Socket for wedge base incandescent lamp
US4556274A (en) * 1983-12-21 1985-12-03 Motorola, Inc. Fuse and mounting arrangement for printed circuit board application
US4973257A (en) * 1990-02-13 1990-11-27 The Chamberlain Group, Inc. Battery terminal
US5239282A (en) * 1991-10-09 1993-08-24 Amp Incorporated Electrical blade fuse
US20040077231A1 (en) * 2002-03-07 2004-04-22 Tomonori Harada Tabular terminal-use female terminal
US7217162B2 (en) * 2002-03-07 2007-05-15 Yazaki Corporation Tabular terminal-use female terminal
US20060197647A1 (en) * 2005-03-03 2006-09-07 Whitney Stephen J Thermally decoupling fuse holder and assembly
US7564337B2 (en) * 2005-03-03 2009-07-21 Littelfuse, Inc. Thermally decoupling fuse holder and assembly
US20100090792A1 (en) * 2005-03-03 2010-04-15 Littelfuse, Inc. Thermally decoupling fuse holder and assembly
US20070093089A1 (en) * 2005-10-20 2007-04-26 Ford Douglas K Relay-fuse system and method thereof
US20080254688A1 (en) * 2007-02-26 2008-10-16 Robert Bogursky Electronic component socket and methods for making and using the same
US20080278276A1 (en) * 2007-05-10 2008-11-13 Banzo Juan I System and method for interconnecting a plurality of printed circuits
US7701321B2 (en) * 2007-05-10 2010-04-20 Delphi Technologies, Inc. System and method for interconnecting a plurality of printed circuits

Also Published As

Publication number Publication date
BE808562A (fr) 1974-06-12
JPS5647658B2 (xx) 1981-11-11
DE2360822A1 (de) 1974-06-20
AU6284573A (en) 1975-05-29
IT1000940B (it) 1976-04-10
SE385751B (sv) 1976-07-19
FR2210818A1 (xx) 1974-07-12
NL176986C (nl) 1985-07-01
ES198487U (es) 1975-06-01
JPS4989147A (xx) 1974-08-26
GB1407326A (en) 1975-09-24
YU323773A (en) 1982-05-31
AT325699B (de) 1975-11-10
NL176986B (nl) 1985-02-01
NL7316706A (xx) 1974-06-18
ATA1040473A (de) 1975-01-15
AR197360A1 (es) 1974-03-29
DE2360822C2 (de) 1982-08-12
FR2210818B1 (xx) 1976-08-27
BR7309662D0 (pt) 1974-08-29
ES198487Y (es) 1975-11-01

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