US3876278A - Fuse holder contact - Google Patents
Fuse holder contact Download PDFInfo
- 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
Links
- 230000013011 mating Effects 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims description 8
- 210000005069 ears Anatomy 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- H01H85/20—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)
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 (xx) |
JP (1) | JPS5740611B2 (xx) |
AR (1) | AR196165A1 (xx) |
AT (1) | AT323272B (xx) |
AU (1) | AU477022B2 (xx) |
BE (1) | BE805844A (xx) |
BR (1) | BR7307886D0 (xx) |
CA (1) | CA996984A (xx) |
DE (1) | DE2349330C2 (xx) |
ES (1) | ES196074Y (xx) |
FR (1) | FR2203162B1 (xx) |
GB (1) | GB1417477A (xx) |
IT (1) | IT968861B (xx) |
NL (1) | NL7313919A (xx) |
SE (1) | SE397433B (xx) |
Cited By (4)
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 (en) * | 2012-03-05 | 2013-12-05 | Yazaki Corporation | Connection structure of electronic components |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2440384C2 (de) * | 1974-08-23 | 1982-11-04 | Kabelwerke Reinshagen Gmbh, 5600 Wuppertal | Sicherungsdose |
JPS5153189U (xx) * | 1974-10-15 | 1976-04-22 | ||
JPS5749318Y2 (xx) * | 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536520A (en) * | 1949-05-27 | 1951-01-02 | Francis N Tighe | Fuse adapter |
NL124818C (xx) * | 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 (xx) * | 1971-12-09 | 1973-07-27 | Amp Inc |
-
1972
- 1972-10-11 IT IT30368/72A patent/IT968861B/it active
-
1973
- 1973-09-13 AU AU60317/73A patent/AU477022B2/en not_active Expired
- 1973-09-19 GB GB4406073A patent/GB1417477A/en not_active Expired
- 1973-09-27 US US401464A patent/US3876278A/en not_active Expired - Lifetime
- 1973-10-01 DE DE2349330A patent/DE2349330C2/de not_active Expired
- 1973-10-02 AR AR250337A patent/AR196165A1/es active
- 1973-10-04 AT AT846573A patent/AT323272B/de active
- 1973-10-09 BE BE136491A patent/BE805844A/xx not_active IP Right Cessation
- 1973-10-10 NL NL7313919A patent/NL7313919A/xx not_active Application Discontinuation
- 1973-10-10 CA CA183,022A patent/CA996984A/en not_active Expired
- 1973-10-10 BR BR7886/73A patent/BR7307886D0/pt unknown
- 1973-10-10 FR FR7336248A patent/FR2203162B1/fr not_active Expired
- 1973-10-10 ES ES1973196074U patent/ES196074Y/es not_active Expired
- 1973-10-11 SE SE7611285A patent/SE397433B/xx unknown
- 1973-10-11 JP JP48114288A patent/JPS5740611B2/ja not_active Expired
Patent Citations (3)
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)
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 (en) * | 2012-03-05 | 2013-12-05 | Yazaki Corporation | Connection structure of electronic components |
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 |
---|---|
NL7313919A (xx) | 1974-04-16 |
FR2203162A1 (xx) | 1974-05-10 |
FR2203162B1 (xx) | 1977-03-11 |
JPS5740611B2 (xx) | 1982-08-28 |
BR7307886D0 (pt) | 1974-07-11 |
DE2349330C2 (de) | 1985-03-14 |
GB1417477A (en) | 1975-12-10 |
DE2349330A1 (de) | 1974-04-25 |
IT968861B (it) | 1974-03-20 |
CA996984A (en) | 1976-09-14 |
AR196165A1 (es) | 1973-11-30 |
ES196074U (es) | 1975-02-16 |
AU477022B2 (en) | 1976-10-14 |
BE805844A (fr) | 1974-04-09 |
ES196074Y (es) | 1975-07-01 |
SE397433B (sv) | 1977-10-31 |
AT323272B (de) | 1975-07-10 |
JPS49124546A (xx) | 1974-11-28 |
AU6031773A (en) | 1975-03-13 |
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