US3868163A - Bus bar - Google Patents

Bus bar Download PDF

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Publication number
US3868163A
US3868163A US381578A US38157873A US3868163A US 3868163 A US3868163 A US 3868163A US 381578 A US381578 A US 381578A US 38157873 A US38157873 A US 38157873A US 3868163 A US3868163 A US 3868163A
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US
United States
Prior art keywords
pair
slits
strip
terminal pins
location
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
US381578A
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English (en)
Inventor
Gordon G Jarosek
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.)
Lear Siegler Inc
Original Assignee
Lear Siegler 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 Lear Siegler Inc filed Critical Lear Siegler Inc
Application granted granted Critical
Publication of US3868163A publication Critical patent/US3868163A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • H01R31/085—Short circuiting bus-strips

Definitions

  • a bus bar for electrically coupling a plurality of spaced-apart parallel terminal pins arranged in banks is constructed of flat strips of electrically conductive material. Internal longitudinal slits divide a portion of the strip into sections with every other section being deformed to form a first generally S-shaped bend and the remaining sections being deformed to form a second generally S-shaped bend oppositely directed from the first bend to define with a first bend a pair of passages capable of receiving terminal pins.
  • the bus bar further includes indexing marks adjacent to each pair of the passages to facilitate the manufacture of the bar. The spacing between passage pairs is infinitely variable.
  • This invention relates to bus bars and more particularly to a bus bar adapted to be slidably secured to spaced-apart terminal pins arranged in banks and also to the manufacture of the bus bars.
  • terminal pins must be electrically interconnected.
  • centrally located flat bus bars were installed ad jacent the connectors and provided with a plurality of lugs.
  • the terminal pins which were to be interconnected were then wired to the bus but and thereby electrically coupled.
  • This approach required substantial assembly and installation work and generally required that each terminal pin be wired to a lug on the bus bar by means of a connecting wire and two solder joints.
  • the great number of pins required in such interconnection often ranging into the hundreds of thousands, necessitates a great amount of effort, time and expense in making such solder joints.
  • bus bar which is not only economical to manufacture but which is capable of substantially reducing installation, time and expense, which provides better interconnections, reduces the frequency of repairs, and facilitates the making of repairs, when necessary.
  • the present invention provides a bus bar or connector for electrically coupling a plurality of spaced-apart pins of an electronic assembly.
  • it comprises a strip of electrically conductive material. Sections of the strip, defined by spaced-apart longitudinal slits, are permanently deformed to form first and second generally S-shaped bends oppositely directed which cooperate to define together a pair of passages capable of receiving terminal pins.
  • the passages have a configuration complementary to the shape of the pins to provide guidance for the pins as they are moved relative to the connector and to establish electrical connections between the connector and the pins.
  • the bus bar may be shielded. Thin layers of insulating and conductive material are then applied to the exterior of the bar to provide such shielding. If the bus bar requires insulation only, this can be accomplished by a thin layer of insulating matc rial over the bar.
  • the bus bar of the present invention is simple and relatively inexpensive to manufacture. It can be mass manufactured by using index marks such as dimples on the strip at preselected intervals along the length of the strip. Longitudinal slits of preselected length are cut at these preselected locations along the length of the bar with respect to the indexing marks. The resulting sections are then deformed with every other strip forming a first generally S-shaped bend and the remaining strips being deformed into second generally S-shaped bends oppositely directed from the first bends. Thereafter, the bus bars are cut to the desired length.
  • FIG. 4 is a side elevation view of a portion of the bus bar shown in FIG. 3;
  • FIG. 5 is a cross-sectional view of the bus bar of FIG. 3 taken along section lines 55;
  • FIG. 6 is a cross-sectional view of the bus bar of FIG. 3 taken along section lines 6-6;
  • FIGS. 7 and 8 are side elevation views of bus bars in accordance with this invention for connecting larger terminal pins.
  • an electronic assembly 10 for use in a computer or in communication equipment, for example, is mounted on a chassis 12 and includes a plurality of parallel, spaced-apart elec-. trical connectors 14.
  • the connectors are of a conventional construction and are secured to the chassis by suitable fasteners such as screws 16.
  • A'plurality of spaced-apart and parallel terminal pins 18 project from an underside 20 of the connectors 14.
  • the chassis also includes guide elements 22 which slidably receive printed circuit cards 24 having terminals 26 which coact with the connectors 14 in a known manner.
  • the printed circuit cards can; of course, be replaced by other electric componentswhich coact withthecom" nectors. Since the electronic subassernbly forms no part of this invention, it is not further described herein;
  • the'spaced apart and parallelterminal pins may be terminal pins of integrated circuitshaving
  • the terminal pins 18 form banks of aligned terminal pins. with each connector 14 having a paircof terminal 7 pins in a common plane with pairs of terminal pins on 'As seen. inFlG; 4, the" generally S shaped bends of x in a passageway. that is symmetrical aboutthe longitudiother connectors that are to be'interconnected. These pairs form vertical columns. as viewed in FIG. 1. It fre-- qnently occursthat each pair in a vertical column must be electrically interconnected and this invention providcs bus bars 30 for electrically interconnecting the pairs of terminal pins .18 in a common plane.
  • the bus bar 30 will now be ,tlcscribcdwith reference to FIGS. I and 3 through 6.
  • the bus bar 30 is a strip of conductive material that has an internal longitudinal slit 3] andan internal longitudinal slit .32 that divides 7 "1h addition toro lling the center section the side sections-34 and 35 are rolled to cause the. inner edges of these sections. tobe pushed away from the center section 33 to further facilitate the insertion ofterminal pins and to remove any burrs from the edges of these sections.
  • the number of slitsfin the'sheet of conductivematew V rial may, of course, beincreased asdesired';
  • the sharpness of the bends olthe strips'of the busban 30 is generally determined byithe size of the. terminal pin to be interconnected and the forming tool uscdyand I the configurations shown in the drawings are thus, illus- 50 To facilitate the manufacture of the bar 30, indexing trativeonly.
  • the dimples 43 are placed at preselected locations alongthebar as determined by r the variable spacing requirements between the terminal pins and also by the size of the terminalpins. Subse-.
  • each terminal pin is incr'ea sed 'witharesultant improved bus .barQFor greater ease ininstalling the bus baronto the terminal pins, the latter preferably include tapered ends 54 (shown'in upon, .lnsitlls!isnsfth ast e?" FIG. 3) whichgradually spread'the center portions I What have been described are considered 'to be only illustrativeembodiments of the present invention. Ac-' cordingly. itis to be understood that various numerous l other arrangements maybe devised by one'skilled in the art. withoutdeiparting from thegspiritandgscope of 1 this invention. T s 5 5' i Wh t ss ainsdyis 1;.
  • V 1a A strip of conductive material forinterconnecting one pair of terminal pins to other pairsofterminalpins spaced given distances apart comprising:
  • each passage of a pair is slightly smaller than the terminal pin whereby the insertion of a pin in one passage decreases the size of the adjacent passage of the pair.
  • each portion having at least one internal longitudinal slit of selected length determined by the size ofthe terminal pins to be interconnected that divides the strip within the portion into one more section than there are slits;
  • the first and second bends being so positioned relative to each other to define together a pair of cooperating passages capable of receiving terminal pins from the same side with a force fit by decreasing the size of one passage when a pin of the given size is inserted in the adjacent passage of each pair;
  • the slits at each slitted portion being separated from the slits at each adjacent slitted portion.
  • a bus bar in accordance with claim 3 wherein there are two internal longitudinal slits forming one center section and two side sections.
  • a bus bar in accordance with claim 3 in which the sections are so deformed that the passage defined by the first and second bends is substantially symmetrical about the longitudinal center line of the strip.
  • a bus bar in accordance with claim 3 in which the strip has a width transverse to the slits that is substantially greater than the maximum transverse dimension of the pin to be received.
  • a bus bar in accordance with claim 3 in which the sections are so deformed that the passage defined by the first and second bends is offset with respect to the center plane within the plane of the strip for all pin sizes greater than a selected pin size.
  • each connecting passage being associated with one immediately adjacent connecting passage and being formed by one or more internal longitudinal slits in the strip that divides a portion of the strip into one more section than there are slits with every other section being permanently deformed to form a first generally S-shaped bend and the other sections being permanently deformed to form a second generally S-shaped bend oppositely directed from the first bend, the first and second bends being so positioned relative to each other to define together a pair of cooperating passages capable of receiving pins of a selected size from the same side with a force fit by decreasing the size of one passage when a pin of the selected size is inserted in the adjacent passage of each pair.
  • An electrical terminal assembly comprising:
  • bus bar for interconnecting pairs of terminal pins in a common plane and on the same side of the bus bar. with the bus bar having a plurality of paired openings in the common plane, the bus bar comprising: a
  • each portion having at least one internal longitudinal slit of selected length dependent upon the size of.
  • terminal pins to be interconnected that divides the strip within the portion into one more section than there are slits
  • the first and second bends being so positioned relative to each other to define together a pair of cooperating passages capable of receiving terminal pins from the same side with a force fit by decreasing the size of one passage when a pin of the selected size is inserted in the adjacent passage of each pair;
  • each slitted portion being a selected distance from.
  • the slits at each location being separated from the slits at each adjacent location and dividing the strip at each location into one more section than there are slits at each location,
  • the first and second bends being so positioned relative to each other to define together a pair of cooperating passages capable of receiving a pair of terminal pins of the given size and the slits being common to both passages of a pair of cooperating passages and extending the length of both passages.
  • a trip of conductive material for interconnecting one pair of terminal pins to-other pairs of terminal pins spaced given distances apart comprising:
  • the slits at each location being separated from the slits at each adjacent location and dividing the strip at each location into one more section than there are slits at each location,
  • the first and second bends being so positioned relative to each other to define together a pair of cooperating I passages capable of receiving a pair of terminal pins of the given size and the slits being common to both passages of a pair of cooperating passages and extending the length of both passages.”
  • the first and second bends being so positioned relative to each other to define together a pair of cooperating passages capable of receivin n n-pai of terminal pins of the given size and wherein the insertion of a pin of the given size causes a decrease in the adjacent opening of the pair of passages, and the slits being of a selected length to provide a force fit for each terminal pin of the pair when both terminal pins are inserted.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Non-Insulated Conductors (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Powder Metallurgy (AREA)
US381578A 1972-01-31 1973-07-23 Bus bar Expired - Lifetime US3868163A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22190572A 1972-01-31 1972-01-31

Publications (1)

Publication Number Publication Date
US3868163A true US3868163A (en) 1975-02-25

Family

ID=22829911

Family Applications (1)

Application Number Title Priority Date Filing Date
US381578A Expired - Lifetime US3868163A (en) 1972-01-31 1973-07-23 Bus bar

Country Status (14)

Country Link
US (1) US3868163A (enrdf_load_stackoverflow)
JP (1) JPS5331547B2 (enrdf_load_stackoverflow)
BE (1) BE794829A (enrdf_load_stackoverflow)
CA (1) CA1005130A (enrdf_load_stackoverflow)
CH (1) CH548108A (enrdf_load_stackoverflow)
DE (1) DE2303537C3 (enrdf_load_stackoverflow)
DK (1) DK140325B (enrdf_load_stackoverflow)
FR (1) FR2170060B1 (enrdf_load_stackoverflow)
GB (1) GB1386051A (enrdf_load_stackoverflow)
IL (1) IL41307A (enrdf_load_stackoverflow)
IT (1) IT977701B (enrdf_load_stackoverflow)
NL (1) NL158326B (enrdf_load_stackoverflow)
NO (1) NO136066C (enrdf_load_stackoverflow)
SE (1) SE392003B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958200A (en) * 1975-01-09 1976-05-18 Guardian Electric Manufacturing Company Blade construction for relay
US4084870A (en) * 1974-03-14 1978-04-18 Sealectro Corporation Miniature matrix programming board
EP0041308A1 (en) * 1980-06-03 1981-12-09 E.I. Du Pont De Nemours And Company Bridge connector for electrically connecting parallel pins
US4354727A (en) * 1980-08-15 1982-10-19 Heyman Manufacturing Company Contact strip for electrical connector
US4401354A (en) * 1981-07-06 1983-08-30 Buckbee-Mears Company Low cost bus strip

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423889A1 (fr) * 1978-04-18 1979-11-16 Cit Alcatel Cosse de cablage
SE428743C (sv) * 1979-12-27 1987-07-09 Bakelit Konstr Ab Elektriskt kontaktdon
DE3921203A1 (de) * 1989-06-28 1991-01-10 Siemens Ag Schutzstecker fuer eine verteilerleiste in einer telekommunikationsanlage
JPH0483776U (enrdf_load_stackoverflow) * 1990-11-30 1992-07-21
DE4109040A1 (de) * 1991-03-15 1992-09-17 Wago Verwaltungs Gmbh Anschlussverteiler fuer elektrische leiter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688735A (en) * 1950-03-29 1954-09-07 Hubbell Harvey Multiple wire terminal for main and branched circuits
US2981926A (en) * 1957-11-20 1961-04-25 Hart Mfg Co Bus bar
US3048812A (en) * 1959-07-16 1962-08-07 Burroughs Corp Electrical connector
US3439315A (en) * 1967-07-17 1969-04-15 Pacific Electricord Co Electrical contact strip
US3551875A (en) * 1968-03-21 1970-12-29 Lear Siegler Inc Bus bar
US3558289A (en) * 1968-02-12 1971-01-26 Joseph J Cervenka Chain form clip

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688735A (en) * 1950-03-29 1954-09-07 Hubbell Harvey Multiple wire terminal for main and branched circuits
US2981926A (en) * 1957-11-20 1961-04-25 Hart Mfg Co Bus bar
US3048812A (en) * 1959-07-16 1962-08-07 Burroughs Corp Electrical connector
US3439315A (en) * 1967-07-17 1969-04-15 Pacific Electricord Co Electrical contact strip
US3558289A (en) * 1968-02-12 1971-01-26 Joseph J Cervenka Chain form clip
US3551875A (en) * 1968-03-21 1970-12-29 Lear Siegler Inc Bus bar

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084870A (en) * 1974-03-14 1978-04-18 Sealectro Corporation Miniature matrix programming board
US3958200A (en) * 1975-01-09 1976-05-18 Guardian Electric Manufacturing Company Blade construction for relay
EP0041308A1 (en) * 1980-06-03 1981-12-09 E.I. Du Pont De Nemours And Company Bridge connector for electrically connecting parallel pins
US4383724A (en) * 1980-06-03 1983-05-17 E. I. Du Pont De Nemours And Company Bridge connector for electrically connecting two pins
US4354727A (en) * 1980-08-15 1982-10-19 Heyman Manufacturing Company Contact strip for electrical connector
US4401354A (en) * 1981-07-06 1983-08-30 Buckbee-Mears Company Low cost bus strip

Also Published As

Publication number Publication date
JPS4887380A (enrdf_load_stackoverflow) 1973-11-16
DE2303537A1 (de) 1973-08-09
NO136066C (no) 1977-07-13
DE2303537C3 (de) 1980-07-31
SE392003B (sv) 1977-03-07
IT977701B (it) 1974-09-20
JPS5331547B2 (enrdf_load_stackoverflow) 1978-09-02
BE794829A (fr) 1973-05-16
CA1005130A (en) 1977-02-08
IL41307A (en) 1975-07-28
GB1386051A (en) 1975-03-05
FR2170060B1 (enrdf_load_stackoverflow) 1978-05-26
DK140325C (enrdf_load_stackoverflow) 1980-02-04
NL158326B (nl) 1978-10-16
IL41307A0 (en) 1973-03-30
FR2170060A1 (enrdf_load_stackoverflow) 1973-09-14
NO136066B (enrdf_load_stackoverflow) 1977-04-04
DK140325B (da) 1979-07-30
NL7300894A (enrdf_load_stackoverflow) 1973-08-02
CH548108A (de) 1974-04-11
DE2303537B2 (de) 1979-10-11

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