EP0028436A1 - Verbinder für eine Karte mit gedruckten Schaltungen - Google Patents

Verbinder für eine Karte mit gedruckten Schaltungen Download PDF

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Publication number
EP0028436A1
EP0028436A1 EP80201048A EP80201048A EP0028436A1 EP 0028436 A1 EP0028436 A1 EP 0028436A1 EP 80201048 A EP80201048 A EP 80201048A EP 80201048 A EP80201048 A EP 80201048A EP 0028436 A1 EP0028436 A1 EP 0028436A1
Authority
EP
European Patent Office
Prior art keywords
contact
pins
holder
connector
groove
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.)
Withdrawn
Application number
EP80201048A
Other languages
English (en)
French (fr)
Inventor
Wilhelmus Theresia Foederer
Laurentius Maria Verhoeven
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0028436A1 publication Critical patent/EP0028436A1/de
Withdrawn legal-status Critical Current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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only

Definitions

  • the invention relates to a connector for a printed circuit board, comprising a casing of_insulating material with a contact groove between mainly parallel upright side walls said groove being open at the upper side for accepting contact elements, and a bottom interconnecting the side walls, said bottom being penetrated by contact members, the portions of which laying within the contact groove may contact contact elements to be inserted in the groove and extend next to but spaced apart from one of the upright side walls, and the portions of which extending through the bottom to the exterior of the casing may contact conductors on the printed circuit board.
  • Such contact devices are used in electronic apparatus, in particular those apparatus using modules, such as radio and television sets, data systems, such as electronic cash registers and the like.
  • modules such as radio and television sets
  • data systems such as electronic cash registers and the like.
  • connecting cables have to be connected with a great number of conductors on a printed circuit board, which connection is established with the connector of the type mentioned above.
  • printed circuit boards have to be interconnected directly by means of such a connector.
  • the object of the present invention is to provide a connector of the type mentioned above, having a more simple construction without detrimentally affecting the operation as a connector.
  • the connector according to this invention is characterized in that the contact members consist of resilient pins, which pins cooperate with non-resilient movable contact elements, which are slid and squeezed between a cooperating pin and the other opposite upright side wall furthest from said pin.
  • the connector of the present invention can be manufactured cheaper as far as the material cost as well as the number of manufacturing steps during assembling and mass application are concerned.
  • the contact elements are inserted in a holder, which can be slid into the contact groove between the pins and the opposite upright side wall, said holder in this area being provided with recesses for receiving the contact elements.
  • the pins preferably will be arranged in mutually staggered relationship such, that seen in the longitudinal direction of the contact groove the successive pins each are positioned next to the other of the two upright side walls of the contact groove.
  • Such an arrangement of the pins leads to a better mechanical load of the holder, of the pins and of the casing.
  • the pins consist of rigid pin material and preferably have a progressive spring action seen in the slide-in direction of the contact elements into the groove.
  • contact elements specially manufactured members can be used.
  • solid conductor of a cable or a metal cylinder soldered to the conductor end, or another non-resilient member can be used.
  • insulation piercing contacts are used. Said contacts can have the form of an open ring clamp with opposite fork-shaped insulating piercing contacts or of a U-shaped member with fork-shaped insulation piercing contacts in each of the upright legs. Said contact elements can be siid onto the cable, simultaneously with assembly in the holder.
  • FIG. 1 which shows the connector according to the invention in exploded view
  • the U-shaped casing of insulating material is shown partly in cross section, partly in perspective view.
  • the casing 1 consists of a bottom 3 and upright walls 4 and 5.
  • the bottom 3 is penetrated by resilient pins 2 with rectangular or circular cross section, extending some distance within the groove 34 and further extending some distance beyond the bottom of the casing 1.
  • the outer ends of the pins 2, extending out of the bottom 3, can be soldered in matching openings in a printed circuit board (not shown).
  • the pins 2 are positioned in staggered relationship such, that seen in the longitudinal direction of the groove 34 in the casing 1, these pins are located successively next to the one wall 4 and the other wall 5. Said pins 2,howeverhave to be positioned at a sufficient distance from the surface of the adjacent upright side walls 4 and 5 respectively, so that when inserting the contact elements 6 in the space between the respective pins 2 and the opposite walls 4 and 5 they can bend in the direction of the adjacent wall and away from the opposite wall.
  • a holder 8 is shown above the U-shaped casing 1 to accomodate the contact elements 6.
  • a contact element 6 has been shown removed from the holder, with a connecting cable 9, electrically connected herewith and provided with an insulating sheath.
  • the contact element 6 consists of a ring-shaped bent metal strip, each end forming insulation piercing contacts 10 having two fork legs.
  • the insulated cable 9 to be contacted has been slid and clamped in the shown manner between the fork legs of said contacts.
  • the inner edges of the legs cut the cable sheath insulation and said edges dig in themself at both sides of the cable core over a small distance into the material of said core.
  • Both outer ends of the ring bent and turned to each other will contact the cable core, so that 2 x 2 contact surfaces are created.
  • said contacting will be accomplished during the manufacturing step whereby the preshaped contact strip is bent into the final ring-shaped contact element 6.
  • This kind of insulation piercing contact is known per se and forms a very good gas tight connection with the cable core.
  • the holder 8 for receiving and supporting the contact elements 6 may consist ofapressed synthetic resin component having a width which is a bit smaller than the width of the groove 3 between the walls 4 and 5 in the casing 1, so that said holder 8 slidingly fits into said groove 34.
  • the length of the holder 8 in general will be approximately equal to the length of the mentioned groove 34.
  • the contact elements 6 can be housed in the holder 8 in open recesses or chambers 11, which extend completely through the width of the holder 8 and have such a depth and height that the ring-shaped contact elements 6 fit slidingly into said recesses. From said chambers 11 channels 12 extend upwardly for accomodating the connecting cables 9. Said cables 9 can be pushed into the channel 12 by means of beveled edge 13 when bringing the contact elements 6 into chamber 11. Within said channels 12 and beveled edge 13, ribs 14 extend inwardly from opposite surfaces which ribs with respect to each other can be displaced in an upward direction to clamp said cables 9 and thus serve as a strain relief.
  • side channels 15 merge into the chambers 11 in which pins 2 are accomodated when sliding the holder 8 into the groove between the walls 4 and 5. Said channels 15 then are positioned opposite to corresponding slots 7 in the side walls 4 and 5 of the casing 1.
  • the depth of chambers 11 is larger than the diameter of the ring-shaped contact elements 6, which diameter is slightly larger than the distance between pins 2 and the side walls 4 or 5 of the casing, as the case may be located at the greatest distance from said pins.
  • the contact elements 6 are squeezed between said pins and said wall.
  • contact elements 6 are correspondingly located with respect to the imaginary center surface in the longitudinal direction of the holder and the groove between walls 4 and 5 of the casing. Consequently contact elements 6 are alternatedly displaced to the right or the left, seen in longitudinal direction of the holder, such that above channels 15 in the holder in the chambers there is space for admitting pins 2 in chambers 11. Contact elements 6 then on the one side rest against pin portions 2, which extend into the chambers, and on the other side against one of the side walls 4 and 5 of the casing 1. By the staggered lay out of the pins in the groove of the casing and the corresponding staggered position of the contact elements 6 in the chambers 11 a mechanically balanced loading is obtained.
  • casing 1 has been provided with locking devices 16, of which only one is shown in Figure 1. Said locking devices resiliently grip behind a particular surface of the holder 8 when it is entirely slid into the groove of casing 1 and prevents the holder from falling out or accidentally pulling out. In Figure 1 this is the upper surface of the holder but said surface may also be formed by a shoulder of a recess in the end wall of said holder.
  • Figure 2 shows a modified embodiment of the connector of the present invention. Insofar as it relates to the same portions the same reference numbers are used as in Figure 1. The position of the various exploded parts correspond to that of Figure 1.
  • the casing 1 consists of a bottom 3 and upright side walls 4 and 5.
  • the bottom is penetrated by straight pins 2.
  • the pins 2 are of a circular cross section and are not bent towards one of the walls as in Figure 1 within the groove between the side walls 4 and 5. Also slots 7 in walls 4 and 5 are not present.
  • pins 2 preferably show a progressively increasing spring action into the insertion direction of the contact elements, for instance by increasing the pins' cross section towards bottom 3.
  • chambers 11 in holder 8 are different. These chambers now also accomodate the cable ends in a close-fit. The staggered position of pins 2 and contact elements 6 in holder 8 is maintained.
  • the contact elements 17 consist of a U-shaped bent metal strip, both legs of which are manufactured as fork-shaped insulation piercing contacts with legs 18, 19 and 20, as far as these are shown in Figure 2.
  • Contact element 17 has been provided with a contact surface 21, which may consist of an outwardly deformation in the wall portion of the strip.
  • Said strip further has been provided with stand offs 38 at the edge, which fit in recesses in holder 8 by means of which said contact elements 17 are fixed in chambers 11 of holder 8. In the same manner as shown by Figure 1 contact with the cable is obtained at 2 x 2 locations.
  • the chambers or recesses 11 of Figure 2 do not entirely run through the holder.
  • the chamber walls do support the contact elements 17 and the cables 9 at all sides.
  • the fork legs 18,, 19 and 20 slidingly fit in transverse slots 22 and 23 in the holder.
  • Beveled edge 13 and channel 12 are used for sliding in and receiving cable 9.
  • Ribs 14 are used to squeeze the cable 9.
  • the cable first will be fed into channel 12 and recess 11. Subsequently the contact element 17 is slid onto the cable, whereby by means of the edges of legs 18, 19 and 20 the cable sheath insulation is cut and contact is made with the cable core.
  • channel 15 for pins 2 is made deeper, seen in the width direction of holder 8, because said pins are located further away from the adjacent side wall than in the embodiment of Figure 1.
  • a contact element 17 has been shown being slid into position. Pin 2 slides through channel 15 along the contact surface 21 of contact element 17 and bends a bit into the direction of adjacent side wall 4 of casing 1.
  • latch 16 prevents the inserted holder 8 from being -pulled out accidentally from the casing groove 34.
  • FIG. 3 mainly corresponds with the one of Figure 2 with the exception that a contact element 24 of different construction has been used.
  • the further portions are indicated with sinilar reference numerals.
  • Contact element 24 is made of a strip one end of which being transversely bent and forming a forklike insulation piercing contact with two fork legs from which one has been indicated at 25.
  • the other end of said strip is formed as a cable sheath clamp 26 which when assembling contact element 24 is wrapped around the cable 9 and serves as a strain relief.
  • the position of the contact elements 24 in holder 8 corresponds with the position in Figure 2. They are placed alternatedly from one of the sides of holder 8 in chambers 11.
  • the contact surface 21 is formed by a portion of the contact element by outward deformation of the contact strip.
  • the casing 1 has been provided at the ends with locking devices 16 for keeping the holder 8 in the groove.
  • the casing 1 consists of a bottom 3 and side walls 4 and 5.
  • Pins 2 extend through the bottom and are of square cross section and run parallel to the adjacent wall surface. Here the outer ends of the casing are closed because locking devices can be omitted.
  • Contact elements 27 and holder 8 are of different shape and serve to establish an electrical connection between conductors on the one printed circuit board, in Figure 4 schematically indicated at the right side at 28, with conductors on the printed circuit board which may be connected with pins 2 in casing 1.
  • the contact elements 27 may consist of a punched plate to which, for instance, pins 29 are formed integrally, fitting in holes 30 in the printed circuit board 28.
  • each contact element is provided with locking cams 31 for securing contact elements 27 in groove-shaped chambers 36 in holder 8, in. which the contact elementsfit exactly.
  • the contact elements 27 at both sides are provided with integrally formed contact cams 32 and 33.
  • the side edges at the bottom side of the contact elements 27 extend along the edges of channels 15 which may accept pins 2 when holder 8 is slid in the groove 34 in chamber 1. In this manner pins 2 come into contact with contact cams 32 and 33 respectively according to the staggered position of the pins in casing 1 and the corresponding channels 15 in holder 8.
  • pins 29 have to project alternatively higher and lower out of the grooves 13 from the side wall of holder 8.
  • Contact cams 32 and 33 are integrally formed at a different height at opposite edges in order to contact each pin 2 at the same height. It is advantageous to contact each pin at the same height to obtain an equal deflection of the pins 2 in the groove 34 in casing 1.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP80201048A 1979-11-06 1980-11-05 Verbinder für eine Karte mit gedruckten Schaltungen Withdrawn EP0028436A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7908112A NL7908112A (nl) 1979-11-06 1979-11-06 Kontaktinrichting voor een ketenplaat.
NL7908112 1979-11-06

Publications (1)

Publication Number Publication Date
EP0028436A1 true EP0028436A1 (de) 1981-05-13

Family

ID=19834120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80201048A Withdrawn EP0028436A1 (de) 1979-11-06 1980-11-05 Verbinder für eine Karte mit gedruckten Schaltungen

Country Status (2)

Country Link
EP (1) EP0028436A1 (de)
NL (1) NL7908112A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012363C2 (nl) * 1999-06-16 2000-12-19 Berg Electronics Mfg Connectors.
WO2000077887A1 (en) * 1999-06-16 2000-12-21 Fci 's-Hertogenbosch B.V. Connector, method for manufacturing such a connector and contact element for a connector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB782103A (en) * 1954-09-23 1957-09-04 Henry And Thomas Ltd Improvements in multiple contact electric plug and socket members
FR1291006A (fr) * 1961-03-09 1962-04-20 Amp Inc Connecteur pour circuits imprimés
US3107961A (en) * 1960-12-20 1963-10-22 Amp Inc Printed circuit edge connector
US3569790A (en) * 1968-05-30 1971-03-09 Siemens Ag Plug-in type connector having short signal path
US3697926A (en) * 1970-07-23 1972-10-10 Molex Products Co Plural circuit board connecting arrangement and terminal therefor
US3835445A (en) * 1972-12-04 1974-09-10 Western Electric Co Electrical connecting devices for terminating cords and methods of assembling the devices to cords
US4002392A (en) * 1973-07-06 1977-01-11 Western Electric Company, Inc. Electrical connecting devices for terminating cords

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB782103A (en) * 1954-09-23 1957-09-04 Henry And Thomas Ltd Improvements in multiple contact electric plug and socket members
US3107961A (en) * 1960-12-20 1963-10-22 Amp Inc Printed circuit edge connector
FR1291006A (fr) * 1961-03-09 1962-04-20 Amp Inc Connecteur pour circuits imprimés
US3569790A (en) * 1968-05-30 1971-03-09 Siemens Ag Plug-in type connector having short signal path
US3697926A (en) * 1970-07-23 1972-10-10 Molex Products Co Plural circuit board connecting arrangement and terminal therefor
US3835445A (en) * 1972-12-04 1974-09-10 Western Electric Co Electrical connecting devices for terminating cords and methods of assembling the devices to cords
US4002392A (en) * 1973-07-06 1977-01-11 Western Electric Company, Inc. Electrical connecting devices for terminating cords

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012363C2 (nl) * 1999-06-16 2000-12-19 Berg Electronics Mfg Connectors.
WO2000077887A1 (en) * 1999-06-16 2000-12-21 Fci 's-Hertogenbosch B.V. Connector, method for manufacturing such a connector and contact element for a connector

Also Published As

Publication number Publication date
NL7908112A (nl) 1981-06-01

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Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19811014

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19831015

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VERHOEVEN, LAURENTIUS MARIA

Inventor name: FOEDERER, WILHELMUS THERESIA