EP0052973B1 - Elektrische Kontaktklemme und Mehrfachkontaktverbinder - Google Patents

Elektrische Kontaktklemme und Mehrfachkontaktverbinder Download PDF

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Publication number
EP0052973B1
EP0052973B1 EP19810305304 EP81305304A EP0052973B1 EP 0052973 B1 EP0052973 B1 EP 0052973B1 EP 19810305304 EP19810305304 EP 19810305304 EP 81305304 A EP81305304 A EP 81305304A EP 0052973 B1 EP0052973 B1 EP 0052973B1
Authority
EP
European Patent Office
Prior art keywords
contact
terminal
arm
housing
contact arm
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
Application number
EP19810305304
Other languages
English (en)
French (fr)
Other versions
EP0052973A2 (de
EP0052973A3 (en
Inventor
Dimitry G. Grabbe
Iosif Korsunsky
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
Priority claimed from US06/208,724 external-priority patent/US4370017A/en
Priority claimed from US06/208,734 external-priority patent/US4370012A/en
Application filed by AMP Inc filed Critical AMP Inc
Publication of EP0052973A2 publication Critical patent/EP0052973A2/de
Publication of EP0052973A3 publication Critical patent/EP0052973A3/en
Application granted granted Critical
Publication of EP0052973B1 publication Critical patent/EP0052973B1/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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts

Definitions

  • This invention relates to sheet metal electrical contact terminals and to multi-contact electrical connectors which contain sheet metal terminals.
  • a flat terminal which has all of its parts lying in the plane of the sheet metal stock from which it was formed is comparatively stiff, or rigid, as compared with a terminal manufactured by forming the sheet metal normally or at right angles to the sheet metal stock.
  • the latter type of contact terminal which is more widely used than flat terminals, can be provided with flexible contact members having a high degree of flexibility.
  • a flat terminal which has all of its parts lying in the plane of the sheet metal stock will have relatively stiff flexible contact members which are capable of only limited movement when they are flexed. This problem may be overcome to some extent by designing the flat terminal with an extremely long contact arm, as shown in U.S. Patent 4,176,895. The use of a long contact arm, however, is undesirable under many circumstances.
  • the terminal itself must be relatively large because of the length of the contact arm and the connector in which the terminal is used must, therefore, have a relatively large housing. Furthermore, the use of an extremely long contact arm which carries the electrical current when the terminal is put to use causes self-inductance effects which are intolerable under many circumstances. Some telephone equipment, for example, has switching times of the order 10- 9 seconds and under current conditions such as these, the rate of change of the current with time is extremely high notwithstanding the fact that the actual magnitude of the current may be relatively low. The high rate of change of the current gives rise to the self-inductance effects which may hamper the operation of the equipment on which the connector is being used.
  • US-A-4188 085 discloses an electrical ter- mihal of the type which has substantially all of its parts in a flat plane, the plane being defined by the thickness of the metal of the terminal, the terminal having a contact arm which is flexible in the plane of the terminal, the contact arm having a fixed end, a portion of the edge of the contact arm which is spaced from the fixed end being a contact portion of the terminal, the terminal having a yoke section, the fixed end of the contact arm extending from the yoke section.
  • a spring arm extends from the yoke section, at a side of the contact arm opposite the contact portion, the length of the contact arm between the contact portion and the yoke section being short relative to the length of the spring arm and, the contact arm and the spring arm having opposed bearing edge portions, which are against each other when the contact arm is flexed towards the spring arm whereby the contact force developed in the terminal is produced by the spring arm and the relative lengths of the spring and contact arms is such that the contact arm serves as the primary conductor.
  • the current flowing passes from the contact portion through the contact arm to the yoke and not through the relatively long spring arm and the terminal may have minimal self-inductance effects when it is used under circumstances of rapid switching, and may be capable of developing relatively high contact forces when desired whilst providing for flexure to the extent required in an electrical connector.
  • the flat extremely thin contact terminals allow for closely spaced contact centres.
  • the terminal is suitably formed by stamping or etching from sheet metal stock and has all of its parts in a single flat plane defined by the thickness of the sheet metal.
  • a terminal in accordance with the invention can be used in a multi-contact electrical connector having a housing in which there are provided a plurality of side-by-side cavities each of which has a contact terminal therein.
  • the contact portions of the contact arms project through openings in the housing past one surface of the housing so that a circuit board clamped against that surface is engaged by the contact portions of the terminals.
  • a channel-shaped frame assembly is provided in which the housing is positioned and which also receives a circuit board.
  • a clamp is provided on this frame assembly for clamping the circuit board against the one surface of the housing thereby to engage the conductors on the circuit board with the contact portions of the terminals in the housing.
  • a terminal 2 serves to connect conductors 18 on the underside of one printed circuit board 14 to conductors 20 on a surface 22 of a smaller printed circuit board 24.
  • the terminal is contained in a housing 46 of a connector 3 mounted on the upper surface 12 of circuit board 14 and the terminal has a solder post 10 which extends through an opening 16 in the circuit board and is soldered to the conductor 18, as shown.
  • the connector 3 contains a plurality of terminals on closely spaced centers.
  • the terminal 2 comprises a yoke section 4 having extending therefrom a contact arm 6 and a spring arm 8 in side-by-side spaced-apart relationship. These arms extend from the upper edge of the yoke and the previously identified solder tab or post 10 extends from the lower edge of the yoke.
  • the contact arm has a fixed end 26 which is integral with the yoke and extends obliquely away from the spring arm to a generally circular free end portion 28. At the end of this circular portion, there is provided an extension 30 which is directed towards the spring arm and edge 32 of this extension serves as a bearing portion for cooperation with a bearing portion 44 on the spring arm 8.
  • the edge of the circular portion which is outwardly directed, as shown at 34, serves as a contact portion of the terminal and engages the conductor 20 on the circuit board 24.
  • An ear 36 is provided on the circular portion 28 and has an edge which bears against the inside surface of the housing cavity 48 so that the contact arm cannot move leftwards in a counterclockwise direction from the position shown in Figure 1.
  • the spring arm 8 has a lower portion which is of substantially uniform width and which extends normally of the yoke 4 of the terminal. This lower portion merges with a spring portion 38 which is reversely curved, as shown at 40, and which merges with a depending portion 41.
  • the free end 42 of the spring arm is adjacent to the extension 30 of the contact arm 6.
  • the rightwardly facing edge 43 of the free end of the spring arm serves as a stop to prevent overstressing.
  • the leftwardly facing edge 44 is normally against the bearing surface edge 32 of the contact arm 6.
  • the connector comprises an insulating housing 46 having a plurality of side-by-side cavities 48 therein extending upwardly from the lower end of the connector as viewed in the drawing. These cavities are dimensioned snugly to receive the terminals as shown, and the lefthand wall 50 of the housing 46 has an opening therein 52, through which parts of the circular free end portion 28 of the contact arm project.
  • the insulating housing has a leftwardly extending flange 54 which serves as a support for the circuit board 24, as shown in Figure 2, and this flange also supports, in part, a frame assembly 56 which is assembled to the housing.
  • the frame assembly is of stamped and formed sheet metal, preferably steel, and is generally channel-shaped having sidewalls 58, 62 and a base 60.
  • the sidewall 58 is disposed against the rightwardly facing surface of the housing as viewed in Figure 1, and has a lance 64 struck from its upper end portion which is received in a recess in the housing.
  • the frame assembly is also retained on the housing by ears 57 on the frame which are received in openings 59 in the housing.
  • the sidewall 62 is reversely bent, as shown at 66, at its upper end to provide a depending arm as shown at 68, which is spaced from the sidewall 62.
  • a cam shaft 70 is supported between the arm 68 and the sidewall 62 and has spaced-apart eccentric cams 72 mounted thereon. Openings are provided in the sidewall 62, the depending arm 68, and in a U-shaped spring member 74 to provide clearance for these cams.
  • the housing 46 has an extension 69 on its lefthand end as viewed in Figure 10, and a recess 67 in this housing receives the end portion of the U-shaped spring member 74 and the end portion of the shaft 70. .
  • the channel-shaped spring member 74 has an integral biasing spring 71 thereon which bears against the lefthand end of the shaft 70 and stabilizes it in the frame assembly 56.
  • Shaft 70 is supported adjacent to its righthand end between ears 73, 75 on the sidewall 62 and on the depending portion 68 of the frame assembly 56.
  • the shaft 70 is movable in a horizontal direction towards the wall 50 so that circuit boards of varying thicknesses can be received in the trough 76 defined by the sidewall 62 and the housing wall 50.
  • the U-shaped spring 74 is mounted on the sidewall 62 and the depending arm 68 of the frame 56. This spring 74 may not be required under all the circumstances but can be used when it is desired to have extremely high forces at the electrical interfaces between the contact portions 34 of the terminals and the terminal pads on the circuit board 24.
  • edge portions of the circuit board are inserted into the trough 76 as shown in Figure 2, and the shaft 70 is thereafter rotated through an angle of substantially 190° to the position shown in Figure 2.
  • the cams 72 will progressively push the circuit board 24 against the contact terminals 2 and the spring 74 will be flexed as shown, so that it will develop the required clamping force.
  • the contact arm 6 is flexed in a generally clockwise direction as the cam is rotated so that the contact arm pushes the spring arm 8 to the position in Figure 2.
  • the manner in which the contact arm is flexed and the spring arm 8 is stressed when the parts are in the positions of Figure 2 is discussed more fully below.
  • Terminals in accordance with the invention can be produced of any suitable material by simply removing material from flat stock metal. The removal of the material will ordinarily be carried out by a simple stamping operation to produce terminals in strip form, as shown in Figure 3, however, such terminals might under some circumstances, be manufactured by chemical etching of the strip. In any event, the finished terminal will have all of its parts lying in the plane of the original stock metal so that the cantilever beams, the contact arm, and the spring arm, are relatively stiff, although they are flexible.
  • the terminals as stamped are integral with a continuous carrier strip 78 and in the as-stamped condition, differ from the terminals as installed in the housing in that each terminal has an extension 84 of the yoke 4 and an additional solder post 86.
  • the end of the contact arm is integral with the end of the spring arm, as shown at 80, and the short lower portion on the end of the contact arm extends through a complete circle, as shown at 82.
  • the material indicated at 80 and 82 is removed prior to insertion of the terminal into the housing cavity 48 as shown at 80', 82' Figure 4.
  • the yoke extension 84 and the second solder post 86 may also be removed, as indicated in Figure 4.
  • the yoke extension and second solder leg may remain on the terminal and the tab 10 may be removed.
  • alternate terminals may thus have the leg 10 removed and the remaining terminals have the leg 86 removed so that a grid hole pattern in the circuit board can be provided for more convenient spacing and location of the conductors on the circuit board.
  • Terminals 2 are installed in the housing 46 in the general manner shown in Figures 4-6, and preferably by means of insertion machinery having the. elements described below for guiding and inserting the terminals.
  • the housing 46 is supported in a housing support 88 that has a recess 90 in which the housing is supported with the open lower end of a cavity 48 disposed above the leading terminal on the strip 78.
  • a contact arm flexing and guiding tool 92 moves against the contact portion 34 of the contact arm 6 and an inserter 94 moves into surrounding relationship with the solder tab 10 of the terminal.
  • the upper surface 95 of this inserter thus bears against the lower edge of the yoke portion 4 of the terminal so that when the inserter 94 moves upwardly, the terminal will be pushed into the cavity 48.
  • the flexing and guiding tool 92 moves rightwardly from the position of Figure 4 to the position of Figure 5, in which the righthand surface 91 of this tool is coplanar with the adjacent internal surface 97 of the housing 46.
  • the terminal 2 When the terminal 2 is held in the insertion tooling as shown in Figure 5, the terminal is sheared from the carrier strip 78 by a shearing means and thereafter the inserter 94 moves upwardly to the position of Figure 6.
  • a guide means 96 is provided against the righthand edge of the terminal and in alignment with the surface 99 of the cavity so that the terminal will move smoothly into the cavity 48.
  • the electrical function of the terminal is performed primarily by the contact arm 6 in that the current will flow from the contact portion 34 along this arm to the yoke 4 and through the solder post 10 to the conductor 18.
  • the contact arm. is substantially straight and extremely short, so that inductance effects will be minimized. Current will not tend to flow across the bearing portions 32, 44 and through the spring arm because of the fact that this current path would present a higher resistance.
  • the contact arm is flexed when the circuit board 24 positioned against the surface of the wall 50 of the housing 46 but its flexure makes only a minor contribution to the contact force developed in the electrical interface of the terminal and the circuit board in Figure 2.
  • the spring arm can, of course, be designed to provide optimum properties and characteristics for the particular use to which the connector will be put. If extremely high contact forces are desired, this spring arm 8 can be made relatively stiff so that it will develop such high forces. Alternatively, if a contact force of limited magnitude is desired, the contact force can be reduced by redesigning the spring arm of the terminal.
  • Figure 7 is a diagram which shows the relative positions of the upper end of the contact arm at different stages of the assembly operation in which the terminal is inserted into the cavity 48.
  • the line 98 indicates the position of the contact arm 6 prior to flexing of this arm inwardly towards the spring arm, in other words, the position of the arm, as it appears in Figure 4 of the drawing.
  • the line 100 denotes the position of the contact arm when the parts are in the position of Figure 6 or Figure 2, that is, when the contact arm is fixed rightwardly to its extreme position.
  • the spring arm 8 pushes the contact arm leftwardly beyond its normal position 102 to the position 104.
  • the spring arm is of course flexed rightwardly when the parts are moved to the position of Figure 5 and it has a tendency to return to its normal position, and it is this tendency of the spring arm to return to its normal position that pushes the contact arm to the position indicated by the line 104.
  • Figure 8 is a force travel diagram showing the position of the upper end of the contact arm during the assembly process.
  • the reference numerals 98, 100, 102, 104 have been applied to Figure 8, with prime marks; so that the curve shown in Figure 8 can be correlated with the arm positions shown in Figure 7.
  • the upper end of the arm 6 is moved a total of 0.97 mm when it is flexed from the position of Figure 4 to the position of Figure 5 and during such flexure, the load remains substantially constant after it has risen to a plateau value.
  • the upper end of the contact arm 6 moves leftwardly past the condition of no load, as shown at 102', and is flexed in a manner such that it is loaded in the opposite direction, as indicated at 104'.
  • the contact arm and the spring arm are both in a flexed condition and are resiliently biased towards each other results in the capability in the contact arm for an increased amount of travel in normal usage, as compared in the amount which would be obtainable if the contact arm were not flexed leftwardly when it is in its Figure 1 position and, therefore preloaded against the lower end of the spring arm.
  • the spring arm can, of course, withstand the flexure which it must undergo in the ordinary use of the connector by virtue of its substantial mass and its dimensions.
  • the specific terminal in accordance with the invention which has been described above has a circular free end 28 on the contact arm 6 which is capable of rotation relative to the shank portion of the contact arm when the load, the contact force, is applied against the contact portion 34 and the reaction force is applied against the bearing portion 32 by the spring arm.
  • the capability for this rotation increases the overall range of movement of the contact area 34 rightwardly, as viewed in the drawing, when the circuit board is mated with the connector.
  • the shank portion of the contact arm 6 which extends from the base portion 26 to the free end undergoes flexure when the contact arm is stressed and this flexure of the arm results in some movement of the contact zone 34 rightwardly from the position of Figure 1.
  • This characteristic of the disclosed embodiment is highly advantageous in that it permits the designer of a specific terminal to achieve a greater amount of movement of the contact portion 34 than would be obtainable if all of the movement were simply a result of flexure of the shank portion of the contact arm. Additionally, the rotation of the circular upper portion 28 of the contact arm contributes to the achievement of a wiping motion on the contact surfaces since the actual zone of contact moves relatively over the zone of contact on the circuit board 24 as the circuit board is clamped in the connector.
  • Terminals in accordance with the invention can be plated with a conductive metal as desired and as indicated by the environment of the intended use. Tin plating or plating with a tin-lead alloy may be satisfactory under many circumstances, particularly in view of the fact that high contact forces can be obtained from the terminal if desired. Gold plating may be used if an extremely low resistance is required. If terminals in accordance with the invention are used under cryogenic conditions, a plating of indium or pure tin may be used.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (10)

1. Elektrischer Anschluß (2) des Typs, bei dem im wesentlichen alle seiner Teile in einer flachen Ebene liegen, wobei die Ebene durch die Dicke des Metalls des Anschlusses (2) definiert ist, wobei der Anschluß (2) einen in der Ebene des Anschlusses biegbaren Kontaktarm (6) aufweist und der Kontaktarm (6) ein befestigtes Ende (26) besitzt, wobei ein von dem befestigten Ende (26) beabstandeter Bereich (34) der Kante des Kontaktarms ein Kontaktbereich des Anschlusses ist, und wobei der Anschluß (2) einen Jochbereich (4) aufweist und sich das befestigte Ende (26) des Kontaktarms (6) von dem Jochbereich wegerstreckt, dadurch gekennzeichnet, daß sich ein Federarm (8) auf einer dem Kontaktbereich (34) entgegengesetzten Seite des Kontaktarms (6) von dem Jochbereich wegerstreckt, wobei die Länge des Kontaktarms (6) zwischen dem Kontaktbereich (34) und dem Jochbereich kurz ist im Vergleich zu der Länge des Federarms (8), daß der Kontaktarm (6) und der Federarm (8) einander gegenüberliegende Anlagekantenbereiche (32, 34) aufweisen, die aneinander anliegen, wenn der Kontaktarm (6). in Richtung auf den Federarm (8) gebogen ist, wodurch die in dem Anschluß entwickelte Kontaktkraft von dem Federarm erzeugt wird, und daß die relativen Längen des Federarms und des Kontaktarms derart sind, daß der Kontaktarm als Hauptleiter dient.
2. Elektrischer Anschluß (2) nach Anspruch 1, dadurch gekennzeichnet, daß es sich bei dem Anschluß um ein gestanztes Metallblechelement handelt.
3. Elektrischer Anschluß (2) nach Anspruch 2, dadurch gekennzeichnet, daß er einen integralen Lötstift (10) aufweist, der sich zur Verlötung mit einem Leiter auf einer Schaltungsplatte (14) von dem Jochbereich wegerstreckt.
4. Elektrischer Anschluß (2) nach Anspruch 3, dadurch gekennzeichnet, daß der Kontaktarm (6) einen sich in Richtung auf den Federarm (8) erstreckenden Fortsatz (30) aufweist und daß der Anlagekantenbereich (32) an dem Fortsatz vorgesehen ist.
5. Elektrischer Anschluß (2) nach irgendeinem der Ansprüche 1 oder 4, dadurch gekennzeichnet, daß sich der Federarm (8) von dem Jochbereich (4) über das freie Ende (28) des Kontaktarms hinauserstreckt und sich dann in entgegengesetzter Richtung (40,41) zurück in Richtung auf des freie Ende des Kontaktarms erstreckt.
6. Elektrischer Anschluß (2) nach Anspruch 5, dadurch gekennzeichnet, daß der Anschluß in einem Anschlußaufnahmehohlraum (48) eines elektrischen Verbindergehäuses (46) enthalten ist, daß in dem Hohlraum eine Öffnung (52) angrenzend an das freie Ende (28) des Kontaktarms (6) vorgesehen ist, und daß ein Bereich des freien Endes (28) des Kontaktarms den sich durch die Öffnung (52) hindurcherstreckenden Kontaktbereich (34) beinhaltet, wodurch bei Plazierung einer Schaltungsplatte (24) anliegend an dem Gehäuse (46) der Kontaktbereich (34) des Kontaktarms (6) einen Leiter (20) auf der Schaltungsplatte (24) kontaktiert.
7. Elektrischer Anschluß (2), der in einem Gehäuse (46) enthalten ist, nach Anspruch 6, dadurch gekennzeichnet, daß in dem Gehäuse (46) eine Mehrzahl identischer Anschlüsse (2) unter gegenseitiger Beabstandung nebeneinanderliegend vorgesehen ist.
8. Elektrischer Anschluß (2), der in einem Gehäuse (46) enthalten ist, nach Anspruch 7, dadurch gekennzeichnet, daß das Gehäuse (46) eine Klemme (72) zum Klemmen einer Schaltungsplatte (24) gegen das Gehäuse (46) aufweist, um dadurch auf der Schaltungsplatte (24) vorgesehene Leiter (20) mit den Kontaktbereichen (34) der Kontaktanschlüsse (2) in dem Gehäuse in Eingriff zu bringen.
9. Elektrischer Kontaktanschluß (2), der in einem Gehäuse (46) enthalten ist, das eine Klemme (72) aufweist, nach Anspruch 8, dadurch gekennzeichnet, daß es sich bei der Klemme um einen durch Stanzen und Formen gebildeten Metallblechrahmen (56) mit kanalförmigem Querschnitt handelt, daß sich das Gehäuse (46) zwischen den Seitenwänden (58, 62) des kanalförmigen Glieds (56) befindet und an einer der Seitenwände (58) anliegt, und daß an der anderen Seitenwand (62) eine Klemmeinrichtung (70) angebracht ist.
10. Elektrischer Kontaktanschluß (2), der in einem Gehäuse (46) enthalten ist, das eine Klemme (72) aufweist, nach Anspruch 9, dadurch gekennzeichnet, daß es sich bei der Klemmeinrichtung (70) um eine Welle handelt, die eine Mehrzahl voneinander beabstandeter kreisförmiger Nocken (72) aufweist, die auf der Welle exzentrisch befestigt sind.
EP19810305304 1980-11-20 1981-11-09 Elektrische Kontaktklemme und Mehrfachkontaktverbinder Expired EP0052973B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US208724 1980-11-20
US208734 1980-11-20
US06/208,724 US4370017A (en) 1980-11-20 1980-11-20 Complanate contact terminal
US06/208,734 US4370012A (en) 1980-11-20 1980-11-20 Electrical connector for circuit board or substrate

Publications (3)

Publication Number Publication Date
EP0052973A2 EP0052973A2 (de) 1982-06-02
EP0052973A3 EP0052973A3 (en) 1982-12-29
EP0052973B1 true EP0052973B1 (de) 1986-02-12

Family

ID=26903441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810305304 Expired EP0052973B1 (de) 1980-11-20 1981-11-09 Elektrische Kontaktklemme und Mehrfachkontaktverbinder

Country Status (4)

Country Link
EP (1) EP0052973B1 (de)
CA (1) CA1170323A (de)
DE (1) DE3173783D1 (de)
MY (1) MY8800058A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577922A (en) * 1985-04-04 1986-03-25 Molex Incorporated Laminated electrical connector arrangement
JPH073582Y2 (ja) * 1989-01-18 1995-01-30 接触端子及び低挿入力コネクタ
US4959029A (en) * 1989-08-18 1990-09-25 Amp Incorporated Electrical contact

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871736A (en) * 1973-09-20 1975-03-18 Amp Inc Connectors providing interconnection between closely spaced conductors and widely spaced terminals
FR2408274A1 (fr) * 1977-11-08 1979-06-01 Cit Alcatel Connecteur pour carte de circuit imprime
DE2838557C2 (de) * 1978-09-04 1986-10-30 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Anschluß von in rahmenartigen Baugruppenträgern einschiebbaren elektronischen Baugruppen
US4188085A (en) * 1978-09-27 1980-02-12 Burroughs Corporation High density solder tail connector assembly for leadless integrated circuit packages
US4268102A (en) * 1979-10-04 1981-05-19 Amp Incorporated Low impedance electrical connecting means for spaced-apart conductors

Also Published As

Publication number Publication date
DE3173783D1 (en) 1986-03-27
CA1170323A (en) 1984-07-03
MY8800058A (en) 1988-12-31
EP0052973A2 (de) 1982-06-02
EP0052973A3 (en) 1982-12-29

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