US3601782A - Printed circuit edge connector - Google Patents

Printed circuit edge connector Download PDF

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Publication number
US3601782A
US3601782A US780956A US78095668A US3601782A US 3601782 A US3601782 A US 3601782A US 780956 A US780956 A US 780956A US 78095668 A US78095668 A US 78095668A US 3601782 A US3601782 A US 3601782A
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US
United States
Prior art keywords
contact
channel
loop
wall
panel
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
US780956A
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English (en)
Inventor
Hermanus Petrus Joha Gillissen
Lucas Gerardus Chris Teurlings
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 US3601782A publication Critical patent/US3601782A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits

Definitions

  • PRINTEDCIRCUIT EDGECONNECTOR ABSTRACT A printed circuit edge connector com tact springs having contact surfaces substantially parallel to the direction of insertion of a printed circuit board, each contact spring being loaded between three latera faces along a contact-receiving cavity of a hou contact pressure is substantially constant over the whole area of the contact surfaces so that excessive wear regions of the contact surfaces containing ing is thereby avoided.
  • An electrical connector assembly for connecting an electrical lead to a printed conductor on a printed circuit panel may comprise an insulating housing defining a channel for receiving an edge of the printed circuit panel and a spring metal contact element disposed in the housing and having a contact spring portion having a contact surface or contact surfaces for engaging the panel when inserted into the charmel, the contact spring portion being formed as a loop which is stressed between abutment surfaces of the housing to preload the contact surface or contact surfaces.
  • a disadvantage of known electrical connector assemblies of the kind described above, is that the contact surface or contact surfaces are unevenly loaded so that the total contact force between the contact surface or contact surfaces and the printed conductor are likewise uneven. This leads to undue wear on the more heavily loaded areas of the contact surface or contact surfaces, which are usuallygold-plated, as a result of insertion and withdrawal of the printed circuit panel or of vibration to which the assembly, when mated with the panel, may be subjected.
  • An object of the invention is to provide a printed circuit edge connector which is preloaded atthree spaced locations within a contact-receiving area of a dielectric housing.
  • Another object is the provision of a printed circuit edge connector having contact surfaces extending substantially parallel to an insertion axis thereof.
  • a further object is to provide a printed circuit edge connector having axially spaced contact surfaces along spring contact sections of contact elements.
  • An additional object is the provision of a printed circuit edge connector wherein the total contact force-to-contact surface deflection curve of the contact element rises sharply upon initial insertion of a printed circuit board into the boardreceiving channel and thereafter remains substantially constant even where the board varies in thickness.
  • FIG. 1 is a-cross-sectional view of an electrical connector assembly comprising electrical contact elements disposed in a housing;
  • FIG. 2 is a side view of one of the contact elements prior to being mounted in the housing.
  • FIG. 3 is a view looking from the left of the contact element of FIG. 2.
  • the assembly shown in FIG. 1 comprises an elongate electrically insulating housing 1 defining a channel 2 for receiving in the direction of the arrow A in FIG. 1 the edge 3 of a printed circuit panel orboard having thereon printed conductors 4.
  • the housing 1 defines pockets 5 (only two of which are shown) each containing a spring metal contact element 6.
  • Each element 6 comprises a contact spring portion formed as a loop, the bight 7 of which is directed upwardly (as seen in FIG. I) of the pocket 5 in which the element 6 is disposed.
  • Each element 6 is longitudinally divided by a slot 8 (FIG. 3) between points a and b in FIG. 1 into two'parts of equal width to provide bifurcated contact spring portions.
  • One arm 9 of each loop, which arm liesin the channel 2 and extends longitudinally thereof has, as shown'in FIG. 3, four discrete contact surface portions 10 to 13 defined by the slot 8 and by bights 14 bowed laterally or inwardly of the insertion axis of channel 2.
  • Each arm 9 also has a free end portion 15 which is offset from the contact surface portions 12 and 13 of the arm 9.
  • the other arm 16 of the loop has a bight or bowed portion defining a projection 17 bowed towards the channel 2 and from "which extends a portion 18 diverging from the arm 9 downwardly (as seen in FIG. I) and having formed integrally therewith an electrical-connecting post 19 having transverse lugs 20 in the vicinity of its junction with the portion 18.
  • the housing 1 has openings 21 each debouching into the base of one of the pockets 5 at one end and into the lower (as seen in FIG. 1 surface of the housing 1 at the other end.
  • Each pocket 5 has a wall 22 extending parallel to the channel 2 on one side thereof.
  • a wall 23 extending parallel to the wall 22 and centrally of the channel 2 has an upper (as seen in FIG. 1)
  • the posts 19 which are received in the openings 21 have portions 25 extending from the lower (as seen in FIG. 1) wall of the housing 1 for connection to electrical leads (not shown), e.g. by metallic clips or by wrapping the leads about the portions 25.
  • the posts 19 are of slightly oversized cross section with respect to the openings 21.
  • FIGS. 2 and 3 show one of the' contact elements 6 prior to insertion in its pocket 5.
  • the post 19 of the element 6 is force-fitted into one of the openings 21 by engaging the lugs 20 of the element 6 with a tool (not shown) to drive the post 19 into the opening 21 until the lugs 20 of the element 6 engage a shoulder (not shown) in the opening 21 thus preventing further advance of the post 19.
  • the loop of the element 6 is pressed laterally away from the channel 2 so that the portion 18 of the element 6 clears the adjacent wall 22 and the portion 15 of the contact element engages the wall '23 as the post 19 is being driven home, the crest of the bowed portion or projection 17 engaging the side of the wall 22 remote from the channel 2.
  • the element 6 is thus under stress between the walls;22 and 23 and the laterally outer side 21' of the wall of the jopening 21.
  • the contact surface portions 10 and 11 are preloaded by the arm 16, the contact surface portions 12 and l3being preloaded by both the arms 9 and 16, each contact surface portion 10 to 13 being preloaded substantially to a constant extent over the whole of its area.
  • the contact forces exerted by the contact surface portions 10 to 13 against the panel 3 are substantially equal.
  • the radiused loops of elements 6 define guide means to guide panel 3 between arms 9.
  • each arm 9 to be .spaced from the center of the channel 2 by a distance small enough to ensure that the deflection of the contact surface portions 10 to 13 upon the insertion of the panel 3 into the channel 2 is small relative to the static. contact force exerted by the contact surface portions 10 to 13 against the panel 3 in its fully inserted position.
  • the total contact force-to-contact surface deflection curve of the contact element rises sharply upon initial insertion of the panel 3 into the channel 2 and thereafter remains substantially constant even where the panel varies in thickness.
  • the preloading of the contact surface portions as well as the shape of the curve, mentioned above, can be varied by altering the relative lengths and positioning of the arms 9 and 16 with respect to the post 19.
  • the posts may be secured tothe housing by means other than force fitting as described above.
  • An electrical connector comprising a dielectric housing having a channel and a pocket in communication'with said channel, said pocket having an opening in communication therewith and a wall extending substantially parallel to said channel, another wall at an inner end of said channel and extending substantially parallel to said pocket wall, a contact element having a section disposed in said opening and a spring contact section including a portion extending along an inner surface of said pocket wall, a loop spaced adjacent to and extending along an outer end of said pocket wall and contact surface means extending along said channel and being substantially parallel to an insertion axis of said channel, a free end of said spring contact section disposed in engagement with said another wall, and projection means provided by said portion in engagement with said inner surface of said pocket wall, said section in said opening, said projection means in engagement with said inner pocket wall surface and said free end in engagement with said another wall providing preloaded contact surface means substantially constantly loaded over the whole area of said contact surface means.
  • An electrical connector assembly for connecting an electrical lead to a printed conductor on printed circuit panel
  • an insulating housing defining a channel for receiving an edge of the printed circuit'panel'and a spring metal contact element disposed in the housing and including a loop-shaped contactv spring portion having contact surface means for engaging the panel when inserted into the channel, the contact surface means extending substantially parallel to the direction of insertion of the panel into the channeland the contact spring portion being stressed between, first, second and third abutment surfaces of the housingso that the contact surface means of the contact portion is substantially constantly loaded over the whole area of the Icontact surface means, the contact spring portion having a free end part on one side of the loop formed by the contact spring'portio'n, this one side of the loop providing the contact surface means the free end part of the loop engaging the first abutment surface,
  • the other side of the loop having a projection engaging the second abutment surface which extends between the two sides of the loop and being stressed between the third abutment surface and the projection.
  • An electrical connector assembly for connecting an electrical lead to a printed conductor on a printed circuit panel, the assembly comprising an insulating housing defining a channel having a'mouth for receiving an edge of a printed circuit panel to be inserted into the channel and a spring metal contact element disposed in the housing and having a contact spring portion formed in the shape of a loop one side of which has a flat contact surface or flat contact surfaces for engaging the panel when inserted into the channel, such surface of surfaces extending substantially parallel to the direction of insertion of the panel into the channel, the loop-shaped contact spring portion being stressed by engagement of the contact element with first, second and third abutment surfaces of the housing, in such a way that the contact surface or contact surfaces are substantially uniformly preloaded 'over the whole area of the contact surface or contact surfaces, the first abutment surface being remote from the mouth of the channel and engaging a free end portion of the one side of the loop-shaped contact spring portion, the second abutment surface engaging the other side of the loop-shaped contact spring portion and cooperating with the third

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  • Coupling Device And Connection With Printed Circuit (AREA)
US780956A 1967-12-06 1968-12-04 Printed circuit edge connector Expired - Lifetime US3601782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676716581A NL142311B (nl) 1967-12-06 1967-12-06 Elektrisch verbindingsstelsel voor het verbinden van vaste elektrische geleiders met gedrukte elektrische geleiders op een paneel.

Publications (1)

Publication Number Publication Date
US3601782A true US3601782A (en) 1971-08-24

Family

ID=19801915

Family Applications (1)

Application Number Title Priority Date Filing Date
US780956A Expired - Lifetime US3601782A (en) 1967-12-06 1968-12-04 Printed circuit edge connector

Country Status (8)

Country Link
US (1) US3601782A (de)
BE (1) BE724731A (de)
DE (1) DE1811255B2 (de)
ES (1) ES361078A1 (de)
FR (1) FR1593837A (de)
GB (1) GB1188045A (de)
NL (1) NL142311B (de)
SE (1) SE356667B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850500A (en) * 1970-11-27 1974-11-26 Amp Inc Stamped and formed post and miniature spring receptacle
US3850497A (en) * 1972-03-08 1974-11-26 Bell Telephone Labor Inc Connector
US4474418A (en) * 1981-01-24 1984-10-02 Amp Incorporated Electrical connector assembly
CN101490906B (zh) * 2006-07-10 2014-09-17 Fci连接器新加坡有限公司 边缘连接器
US20160181713A1 (en) * 2013-08-07 2016-06-23 Molex, Llc Connector
US9716333B1 (en) * 2016-03-14 2017-07-25 Amphenol East Asia Electronic Technology (Shen Zhen) Co., Ltd. Heavy current female connector
US11424584B2 (en) * 2017-05-10 2022-08-23 General Electric Technology Gmbh Current transformer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115819C1 (de) * 1981-04-18 1982-11-11 Mannesmann AG, 4000 Düsseldorf Klemmvorrichtung zum Einspannen von Blechplatten in einer Streckrichtmaschine
US4934961A (en) * 1988-12-21 1990-06-19 Burndy Corporation Bi-level card edge connector and method of making the same
US5013264A (en) * 1989-09-25 1991-05-07 Robinson Nugent, Inc. Edge card connector having preloaded contacts
IT201800020179A1 (it) 2018-12-19 2020-06-19 Tyco Electronics Amp Italia Srl Connettore elettrico ad alta densità di contatti

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935725A (en) * 1955-08-30 1960-05-03 Fox Benjamin Electrical connector for printed circuit board
US2983896A (en) * 1958-09-10 1961-05-09 Continental Connector Corp Multiple electrical connector with selectively positionable polarizing member
US3016508A (en) * 1960-10-24 1962-01-09 Prec Connectors Inc Printed circuit electrical connectors
GB900218A (en) * 1960-01-19 1962-07-04 United Carr Fastener Corp Improvements in and relating to electrical connectors
US3160459A (en) * 1961-02-17 1964-12-08 Burndy Corp Connector for printed circuit boards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935725A (en) * 1955-08-30 1960-05-03 Fox Benjamin Electrical connector for printed circuit board
US2983896A (en) * 1958-09-10 1961-05-09 Continental Connector Corp Multiple electrical connector with selectively positionable polarizing member
GB900218A (en) * 1960-01-19 1962-07-04 United Carr Fastener Corp Improvements in and relating to electrical connectors
US3016508A (en) * 1960-10-24 1962-01-09 Prec Connectors Inc Printed circuit electrical connectors
US3160459A (en) * 1961-02-17 1964-12-08 Burndy Corp Connector for printed circuit boards

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850500A (en) * 1970-11-27 1974-11-26 Amp Inc Stamped and formed post and miniature spring receptacle
US3850497A (en) * 1972-03-08 1974-11-26 Bell Telephone Labor Inc Connector
US4474418A (en) * 1981-01-24 1984-10-02 Amp Incorporated Electrical connector assembly
US4632492A (en) * 1981-01-24 1986-12-30 Amp Incorporated Electrical connector assembly
CN101490906B (zh) * 2006-07-10 2014-09-17 Fci连接器新加坡有限公司 边缘连接器
US20160181713A1 (en) * 2013-08-07 2016-06-23 Molex, Llc Connector
US9923292B2 (en) * 2013-08-07 2018-03-20 Molex, Llc Connector having a housing with closed loop terminals
US10566719B2 (en) * 2013-08-07 2020-02-18 Molex, Llc Connector for mounting on a circuit board
US9716333B1 (en) * 2016-03-14 2017-07-25 Amphenol East Asia Electronic Technology (Shen Zhen) Co., Ltd. Heavy current female connector
US11424584B2 (en) * 2017-05-10 2022-08-23 General Electric Technology Gmbh Current transformer

Also Published As

Publication number Publication date
SE356667B (de) 1973-05-28
ES361078A1 (es) 1970-09-16
NL6716581A (de) 1969-06-10
FR1593837A (de) 1970-06-01
DE1811255A1 (de) 1969-07-17
NL142311B (nl) 1974-05-15
BE724731A (de) 1969-05-02
DE1811255B2 (de) 1972-02-24
GB1188045A (en) 1970-04-15

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