EP1378024B1 - Griffe de sertissage d'un element de contact electrique - Google Patents

Griffe de sertissage d'un element de contact electrique Download PDF

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Publication number
EP1378024B1
EP1378024B1 EP02740248A EP02740248A EP1378024B1 EP 1378024 B1 EP1378024 B1 EP 1378024B1 EP 02740248 A EP02740248 A EP 02740248A EP 02740248 A EP02740248 A EP 02740248A EP 1378024 B1 EP1378024 B1 EP 1378024B1
Authority
EP
European Patent Office
Prior art keywords
claw
face
crimp
base plate
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 - Lifetime
Application number
EP02740248A
Other languages
German (de)
English (en)
Other versions
EP1378024A1 (fr
Inventor
Stefan Deutmarg
Bernd Schleife
Olaf Dehnert
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 Corp
Original Assignee
Lear Corp
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 Corp filed Critical Lear Corp
Priority to EP05018806A priority Critical patent/EP1603194A3/fr
Publication of EP1378024A1 publication Critical patent/EP1378024A1/fr
Application granted granted Critical
Publication of EP1378024B1 publication Critical patent/EP1378024B1/fr
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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping
    • 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
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/68—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals comprising deformable portions

Definitions

  • the invention relates to a crimping claw of an electrical contact element made of a sheet-metal stamped part for crimping an electrical flat-band flat conductor according to the preamble of claim 1.
  • Ribbon flat conductors also called flat conductors, flat cables, foil conductors or ribbon cables, generally have a plurality of spaced apart parallel juxtaposed, relatively thin band-shaped metallic conductor tracks, which are embedded in an insulating material from each other electrically insulated.
  • the conductor tracks can be arranged on the surface or in the interior of the Isolierstoffmaterialbandes.
  • the invention is concerned with the electrical contacting of the printed conductors of such flat ribbon flat conductors.
  • a crimping claw of an electrical contact element is known, the claw arms penetrate the Isolierstoffmaterial, embrace the longitudinal edges of the flat conductor and against a transverse grooves having longitudinal curvature of the bottom of the crimping claw are rolled, where they also surround the rolled-up longitudinal edge region.
  • a surface contact between the arcuate inner surface of the respective rolled-up claw arm and the underside of the rolled, freed from the insulating material during crimping longitudinal edge region is effected in an arc region.
  • the tip regions of the claw arms penetrate the flat conductor and ensure in each case a second contact point (DE 25 00 556 C2, FIG. 3).
  • This known crimping claw requires high crimping forces in particular for penetrating the flat conductor.
  • restoring forces which occur after the crimping claw curls can cause the claw arms to spring back, with the result that the penetration contact and / or the surface contact are impaired.
  • a gas-tight contact is permanently not achievable in this way.
  • the subject matter of US-PS 5,137,468 is concerned with an improvement of the also known surface contacting of the upper side of the longitudinal edge region of the flat conductor.
  • the convex outer surface of the end region of the rolled-up claw arms is arranged opposite a concave arc region of the same radius of a transverse groove extending only up to the transverse center of the longitudinal curvature, with the flat conductor being clamped in between for electrical contacting.
  • a disadvantage of this contacting is also that the claw arms can rebound freely after the crimping on a circular path and thereby opens the contact point, whereby the contact with the flat conductor may be disturbed or even canceled.
  • the sheets need not be concentric and that the arc of a groove may consist of several different radii, this is not stated.
  • the tip of the crimping claw must precisely Transition area meet in the concave arc area. Even the smallest tolerances, which are always present in the manufacturing process, can completely prevent the contacting.
  • the object of the invention is to provide a crimping claw for crimping a flat ribbon flat conductor whose contacting can not be affected by restoring forces.
  • An electrical contact element made of a stamped sheet metal part generally has a contact region 2 and a crimping region 3, which are connected to one another in one piece via a transition region 4 (FIG. 6).
  • the spatial form of the contact region 4 can be arbitrary, which is why it is disregarded in the context of the description of the present invention.
  • the crimping region 3 has a crimping claw 5, which is designed to crimp a flat ribbon flat conductor 27.
  • the crimping claw 5 consists of a substantially elongated flat bottom plate 6 with the longitudinal edges 7 and 8, a free end edge 9 and a surface 10 and a lower surface eleventh
  • claw arms 12 on both longitudinal edges 7, 8 are not opposite each other in the transverse direction of the bottom plate 6, but arranged diagonally offset.
  • the crimping claw according to FIG. 6 has, for example, at one longitudinal edge 7 two claw arms 12 and on the other longitudinal edge 8 three claw arms 12 each in a longitudinal row. In each row, a gap 13 is provided in each case between two claw arms 12. A gap 13 opposite a respective claw arm 14 is connected to the other longitudinal edge.
  • the number of claw arms 12 and the gaps 13 can be selected; in the simplest case, two diagonally opposite claw arms 12 are sufficient.
  • the claw arms 12 have a tongue shape and run in a rounded tip portion 16, which is suitably wedge-shaped thinner embossed with a free end beveled flat outer surface. From approximately triangular tongue shape of the claw arms 12 result in approximately V-shaped to U-shaped lugs 13, so that the gaps 13 have approximately the negative shape of the claw arms 12.
  • transverse grooves 15 are formed, which are each positioned a claw arm 12 in the transverse direction of the bottom plate 6 opposite.
  • the width of the grooves 15 corresponds approximately to the width of the tip portion 16 of a claw arm 12th
  • Essential is the spatial shape of the bead 14 and the grooves 15 in the transverse direction of the bottom plate. 6
  • the bead center 18 transitions across a convex cylindrical arc surface 17 into a flat, first sloping surface 19 sloping steeply down to the bottom plate 6, to which a second plane, oblique, somewhat flatter to the bottom plate 6 sloping, merging into the latter surface 20 connects.
  • the angle of the surface 19 to the flat surface 10 of the bottom plate 6 is preferably between 50 and 70 °. In addition, the angle is between the surface 20 and the surface 10 of the bottom plate 6, preferably between 20 and 40 °.
  • the groove bottom on a Rillenzenit 21 which merges in the transverse direction over a convex cylindrical arc surface 22 in an oblique, flat sloping to the bottom plate 6 surface 23, to which a further flat, oblique, slightly shallow sloping to the bottom plate 6, in the latter connecting surface 24 connects.
  • the angle of the surface 23 to the flat surface 10 of the bottom plate 6 is between 50 and 70 °. In addition, the angle between the surface 24 and the surface 10 of the bottom plate 6 is between 20 and 40 °.
  • the grooves 15 extend across the entire bead 14.
  • the groove design according to the invention is only necessary on the side on which the groove 15 a claw arm 12 is arranged opposite, because this claw arm interacts only with this groove half.
  • the invention provides that the respective claw arm 12 is rolled in such a way that it is pressed with its outer surface against the bead 14 and the groove 15 on its longitudinal side adjacent to the longitudinal center 26, wherein a flat ribbon flat conductor 27 is arranged therebetween.
  • the rolling radius of the claw arm 12 is adjusted to the angle of the slope 19 and / or 23 to the bottom plate 6 such that the unavoidable springback of the claw arm 12 after crimping and / or in a pulling action on the Flachbandflachleite.r self-locking of Krallenfederarms is effected , These self-locking illustrate the figures 7 and 8.
  • the tip portion 16 penetrates the base material 29 of the flat ribbon flat conductor 27, is detected by the upper punch of the crimping tool (not shown) and deformed such that the tip portion 16 preferably in the region of the convex cylindrical arc surface 17 or strikes the oblique surfaces 19, 20 on the copper surface 28 of the Flachbandflachleiters 27.
  • the flat ribbon conductor 27 is clamped between the outer surface of the claw arm 12 and the surface 19 (FIG. 7) and / or the surface 20 (FIG. 8). The contacting takes place via the outer surface of the claw arm 12 and the upper side of the copper surface 28 of the flat ribbon flat conductor 27th
  • a further embodiment of the crimping claw according to the invention provides that the zenith 18 of the bead 14 coincides with the zenith 21 of the grooves 15. From this spatial form results in a longer outlet slope 24 of the grooves 15 in comparison to the outlet slope 20 of the bead 14. This embodiment represents a manufacturing simplification.
  • the embodiment of the invention according to Fig. 5 provides that the two-sided outer edges of the grooves 15 are formed in a blade shape and project beyond the bead surface, resulting in cutting 25. As a result, an additional contact of the conductor 30 is made possible from the bottom.
  • the cutting edges 25 penetrate the base material 29 and contact the conductor 30 of the flat ribbon flat conductor 27.
  • the embodiment of the invention according to FIG. 9 provides that the flat ribbon flat conductor 27 has no copper relief surface 28.
  • the tip portion 16 of the claw arm 12 penetrates the cover layer 31 of the flat ribbon waveguide 27 and scrapes it off and contacts its outer surface on the conductor 30.
  • the invention thus provides a self-locking of the claw arms in the contacting area after crimping and defined contact zones.
  • a gas-tight contact zone flat ribbon flat conductors of any kind can be contacted. It can be ensured safe contact in long-term operation.
  • the contact is made with the outlet of the crimping claw, which is supported on a slope formed by the flat conductor, which on the inclined surface of the Bead and the groove rests.
  • the contacting takes place via the inclined surface 19/23 of the bead and / or the groove, wherein in particular the contacting can also take place on the outlet slope of the two elements.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacture Of Switches (AREA)
  • Conductive Materials (AREA)
  • Contacts (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Claims (21)

  1. Griffe à sertir d'un élément de contact électrique, faite d'une pièce en tôle poinçonnée avec une plaque de base allongée (6) à chacun des bords longitudinaux (7, 8) de laquelle est raccordée au moins une branche de griffe (12) et les branches de griffes (12) sont disposées diagonalement opposées les unes aux autres, la plaque de base (6) présentant entre les branches de griffes (12) un renflement (14) muni de rainures transversales (15) qui s'étend dans le sens de la longueur de la plaque de base (6) et les rainures transversales (15) sont disposées chacune face à une branche de griffe (12),
    caractérisée en ce que les rainures (15) présentent en direction de chaque branche de griffe (12) une surface en arc de cercle convexe (22) partant d'une zone zénithale (21) et, raccordée à cette surface, une surface plane (23) qui descend obliquement et abruptement vers la surface (10) de la plaque de base (6), la surface (23) étant configurée et disposée de façon à réaliser un blocage automatique de la branche de griffe (12) enroulée contre une ouverture de la courbure de la branche de griffe enroulée.
  2. Griffe à sertir selon la revendication 1,
    caractérisée en ce que l'angle de la surface (23) par rapport à la surface plane (10) de la plaque de base (6) mesure de 50 à 70°.
  3. Griffe à sertir selon la revendication 1 et/ou la revendication 2,
    caractérisée en ce que la surface (23) se raccorde à une autre surface (24) plane et un peu plus plate qui descend obliquement vers la plaque de base (6) et qui est de préférence configurée et disposée de façon à réaliser également un blocage automatique du bras élastique (12) enroulé.
  4. Griffe à sertir selon la revendication 3,
    caractérisée en ce que la surface (24) se raccorde à la surface plane (10) de la plaque de base (6).
  5. Griffe à sertir selon la revendication 3 et/ou la revendication 4,
    caractérisée en ce que l'angle entre la surface (24) et la surface (10) de la plaque de base (6) mesure de 20 à 40°.
  6. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 5,
    caractérisée en ce que le renflement (14) présente en direction de chaque branche de griffe (12) une surface en arc de cercle convexe (17) partant d'une zone zénithale (18) et, raccordée à cette surface, une surface (19) plane qui descend obliquement et abruptement vers la surface (10) de la plaque de base (6), la surface (19) étant de préférence également configurée et disposée de façon à réaliser un blocage automatique de la branche de griffe (12) enroulée contre une ouverture de la courbure de la branche de griffe enroulée.
  7. Griffe à sertir selon la revendication 6,
    caractérisée en ce que l'angle de la surface (19) par rapport à la surface plane (10) de la plaque de base (6) mesure de 50 à 70°.
  8. Griffe à sertir selon la revendication 6 et/ou la revendication 7,
    caractérisée en ce que la surface (19) se raccorde à une autre surface (20) plane et un peu plus plate qui descend obliquement vers la plaque de base (6) et qui est de préférence configurée et disposée de façon à réaliser également un blocage automatique du bras élastique (12) enroulé.
  9. Griffe à sertir selon la revendication 8,
    caractérisée en ce que la surface (20) se raccorde à la surface plane (10) de la plaque de base (6).
  10. Griffe à sertir selon la revendication 8 et/ou la revendication 9, caractérisée en ce que l'angle entre la surface (20) et la surface (10) de la plaque de base (6) mesure de 20 à 40°.
  11. Griffe à sertir selon l'une ou plusieurs des revendications 6 à 10,
    caractérisée en ce que les inclinaisons des surfaces (23 et 19) présentent le même angle.
  12. Griffe à sertir selon l'une ou plusieurs des revendications 6 à 11,
    caractérisée en ce que les inclinaisons des surfaces (24 et 20) présentent le même angle.
  13. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 12,
    caractérisée en ce que la zone zénithale (18) du renflement (14) est alignée avec la zone zénithale (21) des rainures (15).
  14. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 13,
    caractérisée en ce que plusieurs branches de griffes (12) sont disposées en une rangée sur chacun des bords longitudinaux (7, 8), un creux (13) étant prévu entre chacune des branches de griffes (12) d'une rangée.
  15. Griffe à sertir selon la revendication 14,
    caractérisée en ce que, en face de chaque creux (13), une branche de griffe (12) est raccordée à l'autre bord longitudinal.
  16. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 15,
    caractérisée en ce que les branches de griffes (12) présentent une forme de languette et se terminent par une zone de pointe arrondie (16).
  17. Griffe à sertir selon la revendication 16,
    caractérisée en ce que les branches de griffes (12) sont matricées dans la zone de pointe (16) en forme de coin plus mince avec une surface extérieure plane biseautée en direction de l'extrémité libre.
  18. Griffe à sertir selon la revendication 16 et/ou la revendication 17,
    caractérisée en ce que la forme de languette sensiblement triangulaire des branches de griffes (12) donne des creux (13) qui ont à peu près la forme d'un V à un U, de sorte que les creux (13) présentent sensiblement la forme en négatif des branches de griffes (12).
  19. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 18,
    caractérisée en ce que la largeur des rainures (15) correspond sensiblement à la largeur de la zone de pointe (16) des branches de griffes (12).
  20. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 19,
    caractérisée en ce que les rainures (15) s'étendent transversalement sur la totalité du renflement (14).
  21. Griffe à sertir selon l'une ou plusieurs des revendications 1 à 20,
    caractérisée en ce que les bords extérieurs des deux côtés des rainures (15) sont réalisés en forme de taillant et dépassent au-dessus de la surface du renflement, formant ainsi des bords coupants (25).
EP02740248A 2001-04-12 2002-04-11 Griffe de sertissage d'un element de contact electrique Expired - Lifetime EP1378024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05018806A EP1603194A3 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un elément de contact électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20106497U DE20106497U1 (de) 2001-04-12 2001-04-12 Crimpkralle eines elektrischen Kontaktelements
DE20106497U 2001-04-12
PCT/DE2002/001361 WO2002084805A1 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un element de contact electrique

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05018806A Division EP1603194A3 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un elément de contact électrique

Publications (2)

Publication Number Publication Date
EP1378024A1 EP1378024A1 (fr) 2004-01-07
EP1378024B1 true EP1378024B1 (fr) 2006-03-01

Family

ID=7955731

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05018806A Withdrawn EP1603194A3 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un elément de contact électrique
EP02740248A Expired - Lifetime EP1378024B1 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un element de contact electrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05018806A Withdrawn EP1603194A3 (fr) 2001-04-12 2002-04-11 Griffe de sertissage d'un elément de contact électrique

Country Status (4)

Country Link
EP (2) EP1603194A3 (fr)
AT (1) ATE319199T1 (fr)
DE (3) DE20106497U1 (fr)
WO (1) WO2002084805A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20207230U1 (de) * 2002-05-07 2003-09-18 Grote & Hartmann Gmbh & Co Kg, 42369 Wuppertal Crimpkralle eines elektrischen Kontaktelements
DE102006049966A1 (de) * 2006-01-24 2007-08-02 Hirschmann Car Communication Gmbh Aufdopplung im Crimpbereich eines Steckers oder eines Kupplers
CN212161961U (zh) * 2020-05-26 2020-12-15 宁德时代新能源科技股份有限公司 信号传输端子、采样装置、电池模组以及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1474249A (en) * 1974-01-09 1977-05-18 Amp Inc Electrical contact for flat conductor cable
GB1466086A (en) * 1974-07-18 1977-03-02 Cannon Electric Great Britain Electrical terminations
JPH0747810Y2 (ja) 1990-05-09 1995-11-01 住友電装株式会社 可撓性平型導体ケーブル用電気接続子
JP3149365B2 (ja) 1996-09-10 2001-03-26 タイコエレクトロニクスアンプ株式会社 電気コンタクト

Also Published As

Publication number Publication date
ATE319199T1 (de) 2006-03-15
DE20106497U1 (de) 2001-07-19
DE50205949D1 (de) 2006-04-27
WO2002084805A1 (fr) 2002-10-24
EP1603194A3 (fr) 2006-02-22
EP1603194A2 (fr) 2005-12-07
DE10291670D2 (de) 2004-04-15
EP1378024A1 (fr) 2004-01-07

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