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WO1988001795A1 - Borne electrique - Google Patents

Borne electrique Download PDF

Info

Publication number
WO1988001795A1
WO1988001795A1 PCT/US1987/001810 US8701810W WO8801795A1 WO 1988001795 A1 WO1988001795 A1 WO 1988001795A1 US 8701810 W US8701810 W US 8701810W WO 8801795 A1 WO8801795 A1 WO 8801795A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
portions
limbs
strip portions
terminal according
Prior art date
Application number
PCT/US1987/001810
Other languages
English (en)
Inventor
Wilhelmus Josephus Aloysius Maria Bots
Antonius Petrus Henricus Maria Van Laarhoven
Original Assignee
Amp Incorporated
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 GB868621075A external-priority patent/GB8621075D0/en
Priority claimed from GB878706264A external-priority patent/GB8706264D0/en
Application filed by Amp Incorporated filed Critical Amp Incorporated
Priority to AT87905130T priority Critical patent/ATE87130T1/de
Priority to KR1019880700471A priority patent/KR930006029B1/ko
Priority to DE8787905130T priority patent/DE3784938T2/de
Publication of WO1988001795A1 publication Critical patent/WO1988001795A1/fr
Priority to DK234288A priority patent/DK168259B1/da
Priority to NO881880A priority patent/NO175757C/no
Priority to FI890942A priority patent/FI91815C/fi

Links

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
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board

Definitions

  • the invention relates to electrical terminals having posts with compliant anchoring portions for force fitting in through-holes in printed circuit boards to connect electrically the terminals to the conductive paths on the printed circuit boards.
  • U.S. Patent 4429459 An example of a widely used terminal of this type is described in U.S. Patent 4429459 and comprises a post, a portion of which is split longitudinally by shearing to form two limbs which are pushed out in opposite directions parallel to the plane of the shear with their sheared surfaces in partially overlapping condition so that during insertion into the through-hole, the limbs are resiliently forced towards each other with progressive sliding engagement of the sheared surfaces across each other in the plane of the shear further into overlapping engagement.
  • Terminals having compliant portions described above have a very high retention force which is desirable when, for example, connection is to be made to the post subsequently by a wire wrapping technique.
  • the very high retention force for subsequent wire wrapping is not necessary and the associated disadvantages such as a high insertion force and the problem of distortion of the through-holes together with the manufacturing difficulties arising as a result of the close tolerances to be maintained should be avoided.
  • the sheared surfaces may be undesirably rough and irregular providing an uneven frictional resistance.
  • the limbs of the compliant portion comprise first and second metal strip portions fixed together at opposite ends to present planar rolled surfaces extending partially overlapping in face-to-face engagement, remote edge portions of the respective strip portions being engageable with the internal periphery of a through-hole during insertion therein to flex the strip portions further together with progressive sliding engagement of the rolled surfaces across each other further into overlapping engagement.
  • the resulting insertion forces are lower than with the prior version as the rolled surfaces have a lower coefficient of friction resisting movement of the limbs together during insertion than the sheared surfaces which are relatively rough.
  • the limbs undergo essentially plastic deformation rather than the resilient deformation of the prior version maintaining the connection by a wedging action, both factors reducing substantially the risk of damage to through-holes.
  • effective connection may be produced without any deformation of the through-hole.
  • the opposite ends of the strip portions may be fixed together by clinching or welding.
  • the limbs of the compliant portion are formed by bending a metal strip through 180 degrees about a transverse axis extending in its plane to bring the rolled surfaces of the strip portions into the partially overlapping relation and fixing the free ends of the strip portions together by clinching or welding thereby retaining the overlapping surfaces in mutual engagement.
  • the remote edges of respective strip portions may be coined to present a smooth radius to the through-holes, facilitating receipt therein.
  • the remote edge portions are located in mutually parallel relation, offset in laterally opposite directions from a longitudinal medial axis of the strip and extend laterally beyond overlapping portions of the limbs adjacent the fold, being joined thereby to divergent lead-in edges.
  • interengageable abutment surfaces are provided on the respective strip portions at locations, for example, on overlapping portions between the fold and the divergent lead-in edges.
  • the abutment surfaces may be formed by splitting the individual strip portions in aligned locations along a longitudinal, preferably medial, axis as by shearing, the stock portions on at least one side of the slit of one strip portion and on at least the opposite side of the slit of the other strip portion being pushed in opposite directions towards each other out of the planes of their respective strip portions to present a pair of opposed severed edges which will abut to resist movement together of medial portions of the strip portions.
  • both of the stock portions on respective sides of the resulting slits are pushed out of the planes of the respective strip portions in respective opposite directions so that a sheared edge of one strip portion on one side of the slit is located opposite the sheared edge on the other side of the slit in the other strip portion, the pushed-out portion of the one strip portion protruding into an aligned recess in the other strip portion defined by the respective pushed-out portion.
  • the invention includes the electrical connection formed between the compliant portion and a plated through-hole of a printed circuit board.
  • Examples of other terminals having compliant portions which are relatively difficult to manufacture are illustrated in U.S. 4324451 and U.S. 4066326.
  • EP 45153 discloses a terminal in which interengageable camming portions are provided on opposed folds of a pair of legs for insertion into an aperture in a printed circuit board, while Japanese U.M. 58-14683 discloses a terminal with another different compliant portion.
  • Figure 1 is a front elevation of the compliant portion
  • Figure 2 is a side elevationr
  • Figure 3 is a cross-sectional view prior to insertion in a through-hole
  • Figure 4 is a similar view after insertion in a plated through-hole
  • Figure 5 is a view of a strip of blanks from which the compliant portions are formed
  • Figure 6 is a perspective view of a second example of the compliant portion.
  • Figure 7 is a transverse cross-sectional view of the second example.
  • the electrical terminal 11 comprises first and second limbs constituted by strip portions 12 and 12', respectively, with respective rolled surfaces 13 and 13', and joined together in face-to-face engagement at respective opposite ends by an integral fold 14 and a pair of ears 15 extending laterally from each edge of one strip portion 12 and clinched along opposite edges of the other strip portion 12'.
  • Medial parts 16,16' of respective strips 12,12' are offset in opposite directions in the planes of the strips from the longitudinal medial axis so that their remote edge portions 19,19' respective extend in mutual parallel relation, and laterally beyond, parts 17,17' of the strip portions adjacent the fold 14 to which they are joined by mutually divergent strip parts 18,18', respective providing remote lead-in edges 20,20', respectively. This results in the rolled surfaces of the medial parts partially overlapping and in engagement.
  • terminals are formed from a strip of blanks shown in Figure 5, but it will be understood that various (different) contact elements may also be incorporated adjacent the carrier 21 according to desired application.
  • the terminals can be produced from thin metal stock by a simple stamping and forming technique without the high degree of precision required for accurately shearing a metal post, the terminals are economic to manufacture and, in view of their lower insertion force, economic to assemble with the circuit board.
  • the strip blank is formed with creases 30 or waisted at locations adjacent but spaced from the fold, hardening the material to enable the blank to be folded about a predetermined radius to bring the surfaces of the folded portions into engagement without cracking at the fold.
  • Abutment surfaces 36,37' for controlling the flexure together, and therefore the insertion force, of the strip portions 32,32' are provided by splitting the individual strip portions in aligned locations along a longitudinal, medial, axis as by shearing, and the stock portions 34,35', 34'35 on both of the respective sides of the resulting slits 33,33' are pushed out of the planes of the respective strip portions 32,32' in respective opposite directions so that a sheared edge 36 of one strip portion 32 on one side of the slit 33 is located opposite the sheared edge 37' on the other side of the slit 33' in the other strip portion 32', the pushed-out portion 34 of one strip portion protruding into an aligned recess 38' in the other strip portion 32' defined by the respective pushed-out portion 34'.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Organic Insulating Materials (AREA)
  • Contacts (AREA)
  • Glass Compositions (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Un support (11) de borne estampé et profilé possède une partie (16, 16') élastique comprenant une première et une seconde parties métalliques en forme de lame (12, 12' ou 32, 32') fixées l'une à l'autre au niveau des extrémités opposées afin de présenter des surfaces (13, 13') laminées planes se chevauchant partiellement en s'engageant face à face. Les bords éloignés (19, 19') des parties respectives en forme de lame (12, 12' ou 32, 32') sont décalés latéralement pour venir en contact avec la périphérie interne d'un trou traversant (22) lors de l'insertion pour permettre un contact glissant des surfaces (13, 13'). On forme la partie élastique en repliant une lame à 180° autour d'un axe transversal afin d'amener en contact les parties à recouvrement des surfaces laminées (13, 13') et de fixer ensemble les extrémités libres. Dans un exemple, le support est fendu (33, 33') au voisinage de la pliure pour former deux bords de cisaillement (36, 37) opposés qui s'aboutent pour résister au mouvement de la partie en forme de lame (12, 12') afin d'accroître la force d'insertion.
PCT/US1987/001810 1986-09-01 1987-07-29 Borne electrique WO1988001795A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT87905130T ATE87130T1 (de) 1986-09-01 1987-07-29 Elektrisches endglied.
KR1019880700471A KR930006029B1 (ko) 1986-09-01 1987-07-29 전기 터미날
DE8787905130T DE3784938T2 (de) 1986-09-01 1987-07-29 Elektrisches endglied.
DK234288A DK168259B1 (da) 1986-09-01 1988-04-28 Elektrisk terminal
NO881880A NO175757C (no) 1986-09-01 1988-04-29 Elektrisk kontaktklemme
FI890942A FI91815C (fi) 1986-09-01 1989-02-28 Sähköliitin

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8621075 1986-09-01
GB868621075A GB8621075D0 (en) 1986-09-01 1986-09-01 Stamped & formed compliant pin
GB878706264A GB8706264D0 (en) 1987-03-17 1987-03-17 Stamped & formed compliant pin
GB8706264 1987-03-17

Publications (1)

Publication Number Publication Date
WO1988001795A1 true WO1988001795A1 (fr) 1988-03-10

Family

ID=26291236

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/001810 WO1988001795A1 (fr) 1986-09-01 1987-07-29 Borne electrique

Country Status (11)

Country Link
EP (1) EP0321468B1 (fr)
JP (1) JPH0626156B2 (fr)
KR (1) KR930006029B1 (fr)
CN (1) CN87106058A (fr)
AT (1) ATE87130T1 (fr)
DE (1) DE3784938T2 (fr)
DK (1) DK168259B1 (fr)
ES (1) ES2008193A6 (fr)
FI (1) FI91815C (fr)
NO (1) NO175757C (fr)
WO (1) WO1988001795A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003462A3 (fr) * 2000-06-29 2002-10-03 Teradyne Inc Connexion a pression a auto-fixation
US6511330B1 (en) 2001-08-24 2003-01-28 Adc Telecommunications, Inc. Interconnect module
US6616459B2 (en) 2001-08-24 2003-09-09 Adc Telecommunications, Inc. Card edge contact including compliant end
US6830465B2 (en) 2001-08-24 2004-12-14 Adc Telecommunications, Inc. Interconnect chassis and module

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106410441A (zh) * 2016-07-29 2017-02-15 南京康尼精密机械有限公司 一种电用插接对

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287827A1 (fr) * 1974-10-10 1976-05-07 Du Pont Broche de plaquette de circuit et procede pour son insertion
US4324451A (en) * 1979-11-19 1982-04-13 Elfab Corporation Card edge connector with pull through bellows contact and lay-over insulator
EP0134094A1 (fr) * 1983-08-15 1985-03-13 AMP INCORPORATED (a New Jersey corporation) Broche élastique de contact électrique pour circuit imprimé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1029105A (fr) * 1973-08-01 1978-04-04 Amp Incorporated Broche de contact pour plaquette de circuit imprime
JPS5918463B2 (ja) * 1980-03-04 1984-04-27 トヨタ自動車株式会社 耐摩耗性焼結合金およびその製法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287827A1 (fr) * 1974-10-10 1976-05-07 Du Pont Broche de plaquette de circuit et procede pour son insertion
US4324451A (en) * 1979-11-19 1982-04-13 Elfab Corporation Card edge connector with pull through bellows contact and lay-over insulator
EP0134094A1 (fr) * 1983-08-15 1985-03-13 AMP INCORPORATED (a New Jersey corporation) Broche élastique de contact électrique pour circuit imprimé

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003462A3 (fr) * 2000-06-29 2002-10-03 Teradyne Inc Connexion a pression a auto-fixation
US6511330B1 (en) 2001-08-24 2003-01-28 Adc Telecommunications, Inc. Interconnect module
US6616459B2 (en) 2001-08-24 2003-09-09 Adc Telecommunications, Inc. Card edge contact including compliant end
US6830465B2 (en) 2001-08-24 2004-12-14 Adc Telecommunications, Inc. Interconnect chassis and module
US6848952B2 (en) * 2001-08-24 2005-02-01 Adc Telecommunications, Inc. Card edge contact including compliant end
US6890187B2 (en) 2001-08-24 2005-05-10 Adc Telecommunications, Inc. Interconnect module

Also Published As

Publication number Publication date
DK234288A (da) 1988-04-28
DE3784938T2 (de) 1993-06-24
KR930006029B1 (ko) 1993-07-01
ES2008193A6 (es) 1989-07-16
EP0321468A1 (fr) 1989-06-28
ATE87130T1 (de) 1993-04-15
JPH01503821A (ja) 1989-12-21
FI91815B (fi) 1994-04-29
DK168259B1 (da) 1994-02-28
NO881880L (no) 1988-06-29
FI890942A7 (fi) 1989-02-28
DK234288D0 (da) 1988-04-28
FI91815C (fi) 1994-08-10
CN87106058A (zh) 1988-03-16
KR880701981A (ko) 1988-11-07
NO175757B (no) 1994-08-22
JPH0626156B2 (ja) 1994-04-06
EP0321468B1 (fr) 1993-03-17
NO175757C (no) 1994-11-30
FI890942A0 (fi) 1989-02-28
NO881880D0 (no) 1988-04-29
DE3784938D1 (de) 1993-04-22

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