US3876278A - Fuse holder contact - Google Patents

Fuse holder contact Download PDF

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Publication number
US3876278A
US3876278A US401464A US40146473A US3876278A US 3876278 A US3876278 A US 3876278A US 401464 A US401464 A US 401464A US 40146473 A US40146473 A US 40146473A US 3876278 A US3876278 A US 3876278A
Authority
US
United States
Prior art keywords
platform
spring arm
contact
aperture
ear
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
US401464A
Other languages
English (en)
Inventor
Dino Battaglia
Guido Vignoli
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 US3876278A publication Critical patent/US3876278A/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case

Definitions

  • FUSE HOLDER CONTACT Inventors: Dino Battaglia; Guido Vignoli, both of Turin, Italy Assignee: AMP Incorporated, Harrisburg. Pa.
  • an electrical contact for a fuse holder is made from resilient electrically conductive material and comprises an elongate spring arm having an identation formed in a first surface adjacent one free end for receiving an end of a fuse, the spring arm being folded adjacent the opposite end to define a receptacle contact part having a platform spaced from and overlying the first surface of a portion of the remainder of the spring arm, the fold having a through aperture to permit entry of a mating male contact between the platform and the portion, the portion having at least one embossment extending towards the platform, the male contact being releasably gripped between the embossment and the platform and at least one ear for limiting flexure of the spring arm away from the platform.
  • a pair of ears extend from the platform. one on each side of the portion of the spring arm, each ear having a stop for engaging the spring arm on flexure of the spring arm away from the platform.
  • FIG. 1 is a plan view of an electrical contact
  • FIG. 2 is a cross-section on the line IIII of FIG. 1;
  • FIG. 3 is a partial cross-section of a fuse holder including a housing containing a pair of electrical contacts as shown in FIG. I.
  • an electrical contact 1 for a fuse holder is made from a strip of resilient electrically conductive material.
  • the electrical contact 1 includes an elongate spring arm 3 which is formed on a first surface 7 adjacent an end 4 with a substantially circular identation 5 which surrounds a generally triangular shaped through aperture 6. Between the identation 5 and the end 4, the surface 7 is formed to provide a lead-in to the aperture 6 for a fuse 8.
  • a fold 10 is formed adjacent the opposite end of the spring arm 3 to define a receptacle contact part 11 having a platform 12 spaced from and overlying the surface 7 of a portion 13 of the remainder of the spring arm 3.
  • the fold 10 has a through aperture 14 to permit the entry of a pair of back-to-back tabs 15, 16 between the platform 12 and the portion 13.
  • a pair of cars 17 extend from the platform 12 one on each side of the portion 13 of the spring arm 3.
  • Each ear 17 has a stop 18 for engaging the spring arm 3 to limit flexure of the spring arm 3 away from the platform 12.
  • a pair of spacer lugs 20 extend from each side ofthe platform. Each spacer lug 20 extends laterally outwardly of the platform 12 and is then formed through 90 so that its free end extends beyond the portion 13 of the spring arm 3.
  • a longitudinally extending slot 21 is formed in the portion 13 of the spring arm 3 and an embossment 22 is formed on the first surface 7 on each side of the slot 21.
  • a locking lance 24 is formed from the platform 12 and a pair of spaced ribs 2. (only one shown) extend from the platform 12 towards respective embossments 22.
  • the fuse holder includes a housing of insulating material having a pair of passageways 32 each receiving an electrical contact l, and a cap 31 releasably securable to the housing.
  • the electrical contacts 1 are assembled within their respective passageways 32 via an opening 33 in the housing 30 on separation of the cap 31 from the housing 30.
  • the lance 24 snaps behind a shoulder 35 formed in the passageway 32 to lock the contact 1 in the passageway.
  • the aperture 14 in the fold 10 is in alignment with a hole 34 communicating with the passageway 32 from the outside surface of the housing and the end 4 of the spring arm 3 extends out of the passageway into a space between the housing 30 and the cap 31.
  • the spacer lugs 20 locate the receptacle contact part 11 in the passage way 32 and ensure that the portion 13 ofthe spring arm 3 can flex away from the platform 12 without engaging the walls of the passageway 32.
  • a pair of tabs 15, 16 arranged back-toback are inserted through the hole 34 and aperture 14 and between the platform 12 and the portion 13 thereby exerting a force on the portion 13 via the embossments 22 which causes the portion 13 to arch flexibly away from the platform 12.
  • the stops 18 on the ears engage the spring arm 3 as it is flexed away from the platform 12 thus causing the end 4 to deflect in a direction towards the platform 12 or as seen in FIG. 3 will cause the ends 4 of the respective contacts 1 to move towards each other.
  • the tabs are gripped releasably by the ribs 23 on the platform 12 and the embossments 22 on the portion 13.
  • the slot 21, in effect causes the portion 13 of the spring arm 3 to act as two spring beams and the embossments 22 provide high contact pressure areas between the portion 13 and the tabs l5, 16.
  • a fuse 8 can be loaded between the two spring arms 3 of the electrical contacts 1, each end of the fuse 8 engaging in an aperture 6 ofa spring arm 3.
  • the generally triangular shape of the aperture enables the sides of the aperture to engage a conical ended fuse at three spaced contact points. These contact points share between them the contact pressure between the fuse and the contact and the provision of three high pressure contact points has been found to give a satisfactory electrical engagement offering a low resistance be tween the fuse and the contact.
  • the spring arm On engagement of the fuse 8 with a spring arm 3, the spring arm flexes or pivots about the point of engagement of the spring arm 3 with the locking ears 17 and about the points of contact with the embossments 22. The effect of this is to deflect the ends 4 of each contact 1 within a predetermined deflection range in a direction away from each other.
  • the pre-deflection caused by engagement of the tabs 15, 16 in the contact part 11 of each contact permits of a low initial insertion force requirement on the fuse 8 to locate it correctly between the contacts 1.
  • An electrical contact for a fuse holder the contact being made from resilient electrically conductive material and comprising an elongate spring arm having an indentation formed in a first surface adjacent one free end for receiving an end of a fuse, the spring arm being folded adjacent the opposite end to define a receptacle contact part having a platform spaced from and overlying the first surface of a portion of the remainder of the spring arm, the fold having a through aperture to permit entry of a mating male contact between the platform and the portion, the portion having at least one embossment extending towards the platform, the male contact being releasably gripped between the embossment and the platform, at least one ear extending from one of said platform and said portion and overlying the other for limiting flexure of the spring arm away from the platform.
  • said ear being disposed intermediate said through aperture and said free end, and a spacer lug extending from each side of the platform and formed so that a free end extends beyond the portion of the spring arm to permit flexure of the spring arm when the receptacle contact part is housed in a passageway of an insulating housing,
  • An electrical contact for a fuse holder the contact being made from resilient electrically conductive material and comprising an elongate spring arm having an indentation formed in a first surface adjacent one free end for receiving an end of a fuse, the spring arm being folded adjacent the opposite end to define a receptacle contact part having a platform spaced from and overlying the first surface of a portion of the remainder of the spring arm, the fold having a through aperture to permit entry of a mating male contact between the platform and the portion, the portion having an elongate slot extending longitudinally of the spring arm, the portion further having two embossments formed on the first surface of the portion and extending towards the platform, one embossment being on each side of the slot, the male contact being releasably gripped between the embossment and the platform and at least one ear extending from one of said platform and said portion and overlying the other for limiting flexure of the spring arm away from the platform, said ear being disposed intermediate said through aperture and said free
  • An electrical contact for a fuse holder the contact being made from resilient electrically conductive material and comprising an elongate spring arm having an indentation formed in a first surface adjacent one free end for receiving an end of a fuse, said indentation including a through aperture, the shape of the through aperture being generally triangular, the spring arm being folded adjacent the opposite end to define a receptacle contact part having a platform spaced from and overlying the first surface of a portion of the remainder of the spring arm, the fold having a through aperture to permit entry of a mating male contact between the platform and the portion, the portion having at least one embossment extending towards the platform, the male contact being releasably gripped between the embossment and the platform and at least one ear extending from one of said platform and said portion and overlying the other for limiting flexure of the spring arm away from the platform, said ear being disposed intermediate said through aperture and said free end.

Landscapes

  • Fuses (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US401464A 1972-10-11 1973-09-27 Fuse holder contact Expired - Lifetime US3876278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30368/72A IT968861B (it) 1972-10-11 1972-10-11 Contatto elettrico per portafusibili

Publications (1)

Publication Number Publication Date
US3876278A true US3876278A (en) 1975-04-08

Family

ID=11229616

Family Applications (1)

Application Number Title Priority Date Filing Date
US401464A Expired - Lifetime US3876278A (en) 1972-10-11 1973-09-27 Fuse holder contact

Country Status (15)

Country Link
US (1) US3876278A (fr)
JP (1) JPS5740611B2 (fr)
AR (1) AR196165A1 (fr)
AT (1) AT323272B (fr)
AU (1) AU477022B2 (fr)
BE (1) BE805844A (fr)
BR (1) BR7307886D0 (fr)
CA (1) CA996984A (fr)
DE (1) DE2349330C2 (fr)
ES (1) ES196074Y (fr)
FR (1) FR2203162B1 (fr)
GB (1) GB1417477A (fr)
IT (1) IT968861B (fr)
NL (1) NL7313919A (fr)
SE (1) SE397433B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239282A (en) * 1991-10-09 1993-08-24 Amp Incorporated Electrical blade fuse
US20130015941A1 (en) * 2011-07-12 2013-01-17 Yazaki Corporation Fuse holder, method for connecting fuse by using the same, and fuse-connecting structure equipped with the same
US20130300366A1 (en) * 2012-03-23 2013-11-14 Cheng Uei Precision Industry Co., Ltd. Charger
WO2013133348A3 (fr) * 2012-03-05 2013-12-05 Yazaki Corporation Structure de connexion de composants électroniques

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2440384C2 (de) * 1974-08-23 1982-11-04 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal Sicherungsdose
JPS5153189U (fr) * 1974-10-15 1976-04-22
JPS5749318Y2 (fr) * 1978-02-15 1982-10-28
IT1119608B (it) * 1979-12-21 1986-03-10 Burndy Electra Spa Elemento di contatto protafusibile particolarmente per circuiti stampati e piastre di itnerconnessione
JPS60195309A (ja) * 1984-03-16 1985-10-03 Nippon Steel Corp 水砕スラグ排熱利用発電装置
NZ221085A (en) * 1986-07-18 1989-10-27 Nilsen Oliver J Australia Fuse unit; probes on fuse carrier plug into sockets in cable terminals in base

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611183A (en) * 1924-12-04 1926-12-21 William H Frasse Grid leak and condenser mounting
US1635256A (en) * 1924-01-17 1927-07-12 Carter Radio Company Terminal connecter
US2704838A (en) * 1951-02-15 1955-03-22 Clark Controller Co Spring clip contacts

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536520A (en) * 1949-05-27 1951-01-02 Francis N Tighe Fuse adapter
NL124818C (fr) * 1960-05-26
DE1172341B (de) * 1961-12-06 1964-06-18 Grote & Hartmann Steckerhuelse fuer Flachsteckverbindungen
DE1899873U (de) * 1964-05-29 1964-09-03 Grote & Hartmann Sicherungsdose.
GB1139248A (en) * 1966-05-20 1969-01-08 Amp Inc Rail mounted terminal blocks
DE1638011A1 (de) * 1968-02-07 1971-04-15 Daimler Benz Ag Fassung fuer elektrische Sicherungen,Sofittenlampen od.dgl.
FR2164012A5 (fr) * 1971-12-09 1973-07-27 Amp Inc

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1635256A (en) * 1924-01-17 1927-07-12 Carter Radio Company Terminal connecter
US1611183A (en) * 1924-12-04 1926-12-21 William H Frasse Grid leak and condenser mounting
US2704838A (en) * 1951-02-15 1955-03-22 Clark Controller Co Spring clip contacts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239282A (en) * 1991-10-09 1993-08-24 Amp Incorporated Electrical blade fuse
US20130015941A1 (en) * 2011-07-12 2013-01-17 Yazaki Corporation Fuse holder, method for connecting fuse by using the same, and fuse-connecting structure equipped with the same
US9355804B2 (en) * 2011-07-12 2016-05-31 Yazaki Corporation Fuse holder, method for connecting fuse by using the same, and fuse-connecting structure equipped with the same
WO2013133348A3 (fr) * 2012-03-05 2013-12-05 Yazaki Corporation Structure de connexion de composants électroniques
US20140363993A1 (en) * 2012-03-05 2014-12-11 Yazaki Corporation Connection structure of electronic components
US20130300366A1 (en) * 2012-03-23 2013-11-14 Cheng Uei Precision Industry Co., Ltd. Charger

Also Published As

Publication number Publication date
AU6031773A (en) 1975-03-13
AT323272B (de) 1975-07-10
DE2349330A1 (de) 1974-04-25
ES196074Y (es) 1975-07-01
CA996984A (en) 1976-09-14
ES196074U (es) 1975-02-16
NL7313919A (fr) 1974-04-16
BR7307886D0 (pt) 1974-07-11
AU477022B2 (en) 1976-10-14
JPS5740611B2 (fr) 1982-08-28
BE805844A (fr) 1974-04-09
DE2349330C2 (de) 1985-03-14
GB1417477A (en) 1975-12-10
AR196165A1 (es) 1973-11-30
IT968861B (it) 1974-03-20
FR2203162A1 (fr) 1974-05-10
JPS49124546A (fr) 1974-11-28
FR2203162B1 (fr) 1977-03-11
SE397433B (sv) 1977-10-31

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