EP0040783A1 - Ressort de contact pour la connexion d'un câble plat - Google Patents

Ressort de contact pour la connexion d'un câble plat Download PDF

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Publication number
EP0040783A1
EP0040783A1 EP81103803A EP81103803A EP0040783A1 EP 0040783 A1 EP0040783 A1 EP 0040783A1 EP 81103803 A EP81103803 A EP 81103803A EP 81103803 A EP81103803 A EP 81103803A EP 0040783 A1 EP0040783 A1 EP 0040783A1
Authority
EP
European Patent Office
Prior art keywords
contact spring
contact
rigid plate
leg
base part
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.)
Granted
Application number
EP81103803A
Other languages
German (de)
English (en)
Other versions
EP0040783B1 (fr
Inventor
Josef Ing.Grad. Heft
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT81103803T priority Critical patent/ATE9048T1/de
Publication of EP0040783A1 publication Critical patent/EP0040783A1/fr
Application granted granted Critical
Publication of EP0040783B1 publication Critical patent/EP0040783B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
    • 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
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot

Definitions

  • the invention relates to a contact spring for ribbon cable connection with a U-shaped base part and two protruding at right angles from the U-legs of the base part, together forming a contact spring contact for a contact pin or a contact blade contact spring legs, which are in a channel-like cavity of a contact spring strip with transverse to the course of the cavity-directed base part and with the contact spring legs can be used in advance and with one of the two U-legs of the base part opposite to the course of the contact spring legs, protruding from the contact spring strip and forming an insulation displacement contact for a wire-shaped contact contact pair, according to patent 26 07 693.
  • Such a contact spring is known from DE-PS 26 07 693.
  • the object of the present invention is therefore to develop a contact spring of the type mentioned in such a way that it can still be arranged in a reliable manner in the cavity of a contact spring strip with a simple construction, even if the contact grid between the individual contact springs of the strip only allows relatively small distances.
  • this object is achieved in that the U-legs of the base part are of unequal length, that the contact spring leg protruding from the longer U-leg is designed as a rigid plate with a width corresponding to the length of the U-leg and that resilient contact spring leg protruding from the shorter U-leg has a width which is less than half the width of the rigid plate, that the resilient contact spring leg is arranged approximately centrally to the rigid plate, and at its free end with one of the free end of the U- Leg directed away, but set back from the edge of the rigid plate, the contact spring leg widened approach is provided.
  • This design of the contact spring ensures, despite the relatively shorter design of the U-legs, a safe transmission of the forces which occur when contacting a ribbon cable single-cell conductor to the contact spring strip, because in particular the portion of the rigid plate lying outside the projection of the resilient contact spring leg uncomplicatedly corresponds to this portion dimensioned pocket of the contact spring strip can be inserted and thereby a stable positive connection between the contact spring and the strip housing is made possible.
  • a free cut is provided between the part of the longer U-leg which runs curved at the root and the rigid plate, as a result of which the rigid plate can be made flat in maximum width, since it does not work because of the connection area between the two U's -Legs of the base part curved course of the U-legs must also be curved in this area; that the rigid plate has an incision at its free end for separating a flat portion lying essentially outside the projection of the resilient contact spring leg on the rigid plate and a part interacting with the resilient contact spring leg, which is bent towards the end at the other end, whereby at least on free end of the portion of the rigid plate which interacts with the resilient contact spring leg, a section suitable for contacting with a contact pin or contact knife is created to form an insertion funnel.
  • the flat portion of the rigid plate is provided with wart-like projections and that the contact slot, which is limited by the contact cutting edges and forms the insulation displacement contact, is offset with respect to the contact spring contact formed by the contact spring legs.
  • the transverse offset of the contact slot in relation to the contact gap of the contact spring makes it possible to implement a rectangular contact grid on the side of the contact spring leg contacts, because if e.g. the degree of dislocation, equal to a quarter of the grid spacing of this contact grid, and the contact springs arranged in two rows with contact spring legs interchanged in one row with the contact springs of the other row, the contact spring strip naturally having to be designed in such a way that it accommodates the partial area of the Rigid plate provided housing-side pockets are each in the right place, the contact slots of corresponding contact springs of the two rows are shifted to one side by a quarter of the pitch on one side and by a quarter of the pitch to the other side of the other contact spring , so that for a ribbon cable with half the pitch of the contact spring contacts formed by the contact spring legs of the contact springs adjacent individual conductors, only a single conductor is detected by a contact slot of a contact spring.
  • the contact spring made of flat material has a U-shaped base part 2. whose U-legs 30, 31 are directed at right angles to the insertion direction of a contact knife or contact pin, which or which is to be connected to the contact spring.
  • the two U-legs. 30, 31 of the base part 2 are of unequal length and the longer U-leg 30 merges in the direction of insertion of a contact knife or contact pin into a contact spring leg designed as a rigid plate 3a, the width of which corresponds to the length of the U-leg 30 corresponds.
  • a cutout 35 is provided between the base part 2 and the plate 3a, which separates the curved region of the U-leg 30 from the plate 3a.
  • the U-leg 30 has two contact cutting edges 16 which delimit a contact slot 17 between them, into which a wire-shaped conductor with a course directed transversely to the slot 17 can be pressed.
  • the contact cutting edges 16 resiliently lay against the conductor and connect it to the contact spring.
  • the crosspiece 41 of the base part 2 is formed on the side of the pair of contact blades 16, i.e. on the side facing away from the contact spring legs, wider than the shorter U-leg 31. With this widened crosspiece 41, the contact spring can be supported in the insertion direction on a cover closing the contact spring strip cavities, which after Inserting the contact springs is connected to the contact strip.
  • the other shorter U-leg 31 of the base part 2 is in one piece with a spring-elastic contact spring leg 3b, the width of which is less than half the width of the plate 3a.
  • the contact spring leg 3b is arranged approximately centrally to the plate 3a.
  • the contact spring leg 3b At its free end 32, the contact spring leg 3b has a projection 34 which widens the contact spring leg 3b on one side and runs opposite to the U-leg 31, but does not extend to the edge of the rigid plate 3a.
  • the incision 37 also makes it possible to let the partial area 38 of the contact spring leg 3a run completely flat, so that it can be inserted into a suitably designed housing pocket (FIG. 3) 42 of the contact spring strip 43.
  • the wart-like projections 40 provided in the partial area 38 press into the plastic mass of the strip 43 and thus fix the contact spring inserted into the strip housing so that it cannot fall out of the housing again.
  • the pocket 42 is closed at the top, that is to say in FIG. 3 toward the viewer, so that a stop is formed when the contact spring is inserted into an associated cavity of the contact spring strip with the contact spring legs 3a and 3b in advance.
  • the resilient contact spring leg 3b since the resilient contact spring leg 3b does not protrude as far as the rigid plate 3a, the resilient leg 3b always remains movable, in other words, digging the free end 32 of the resilient leg 3b into the plastic mass of the contact spring strip is thereby reliably prevented .
  • Pocket wall 44 (FIG. 3) advantageously also serves for the pre-centering and pre-opening of the contact spring leg 3 b, which is supported on this wall 44. In this way, the force required for inserting a contact knife or contact pin is reduced and the risk of rear insertion, ie the missing of the space between rigid plate 3a and contact spring leg 3b, is substantially reduced by a contact knife or contact pin.
  • the U-shaped base part together with the contact spring leg 3a designed as a rigid plate, forms a rigid part of the contact spring which is enclosed by walls of the strip housing and which fully guarantees the reliable position of the contact spring in the cavity of the strip housing 43 facing it .
  • the contact slot 17 for receiving a single conductor is transversely offset from the contact spring contact 4 formed by the portion 39 and the contact spring leg 3b.
  • This transverse offset which e.g. a quarter of the grid spacing of the contact pins or contact knives from each other, which are to be connected to the contact springs of the strip, enables a single conductor of a ribbon cable to be detected by only one contact slot 17, that is to say only by one contact spring, if one in the case of a two-row arrangement of the contact springs in the strip housing, the contact springs of the one row with contact spring legs 3a, 3b which are interchanged with the contact springs of the other row are arranged, the cavities for receiving the contact springs of course having to be designed in a corresponding manner.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insulated Conductors (AREA)
  • Contacts (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)
EP81103803A 1980-05-23 1981-05-18 Ressort de contact pour la connexion d'un câble plat Expired EP0040783B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103803T ATE9048T1 (de) 1980-05-23 1981-05-18 Kontaktfeder fuer bandkabelanschluss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803019841 DE3019841A1 (de) 1980-05-23 1980-05-23 Kontaktfeder fuer bandkabelanschluss
DE3019841 1980-05-23

Publications (2)

Publication Number Publication Date
EP0040783A1 true EP0040783A1 (fr) 1981-12-02
EP0040783B1 EP0040783B1 (fr) 1984-08-15

Family

ID=6103197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103803A Expired EP0040783B1 (fr) 1980-05-23 1981-05-18 Ressort de contact pour la connexion d'un câble plat

Country Status (5)

Country Link
EP (1) EP0040783B1 (fr)
AT (1) ATE9048T1 (fr)
DE (2) DE3019841A1 (fr)
FI (1) FI811585L (fr)
NO (1) NO811719L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213655A (en) * 1987-12-15 1989-08-16 Bicc Plc Electrical connector
EP0738026A1 (fr) * 1995-04-10 1996-10-16 Siemens Aktiengesellschaft Ressort de contact
EP0748001A1 (fr) * 1995-06-06 1996-12-11 Sumitomo Wiring Systems, Ltd. Organe de contact pour des connecteurs avec pont de court-circuit et boîtier de connecteur associé
US5904581A (en) * 1996-07-17 1999-05-18 Minnesota Mining And Manufacturing Company Electrical interconnection system and device
EP1160924A1 (fr) * 2000-05-30 2001-12-05 Société Anonyme SYLEA Dispositif de liaison électrique pour organe de contact électrique mâle et élément de boítier destiné à recevoir un tel dispositif

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10247410B4 (de) * 2002-10-11 2014-02-13 Robert Bosch Gmbh Kontaktelement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540550A1 (de) * 1975-09-11 1977-04-07 Du Pont Nederland Ader-verzweigung
DE2819868A1 (de) * 1977-05-06 1978-11-09 Amp Inc Elektrischer verbinder
DE2607693B2 (de) * 1976-02-25 1979-03-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Kontaktfeder für BandkabelanschluB
US4171858A (en) * 1978-06-01 1979-10-23 Litton Systems, Inc. Insulation displacement connector for a flat multi-conductor cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540550A1 (de) * 1975-09-11 1977-04-07 Du Pont Nederland Ader-verzweigung
DE2607693B2 (de) * 1976-02-25 1979-03-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Kontaktfeder für BandkabelanschluB
DE2819868A1 (de) * 1977-05-06 1978-11-09 Amp Inc Elektrischer verbinder
US4171858A (en) * 1978-06-01 1979-10-23 Litton Systems, Inc. Insulation displacement connector for a flat multi-conductor cable

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213655A (en) * 1987-12-15 1989-08-16 Bicc Plc Electrical connector
EP0738026A1 (fr) * 1995-04-10 1996-10-16 Siemens Aktiengesellschaft Ressort de contact
EP0748001A1 (fr) * 1995-06-06 1996-12-11 Sumitomo Wiring Systems, Ltd. Organe de contact pour des connecteurs avec pont de court-circuit et boîtier de connecteur associé
CN1084061C (zh) * 1995-06-06 2002-05-01 住友电装株式会社 接头连接器,端接附件及连接器壳体
US5904581A (en) * 1996-07-17 1999-05-18 Minnesota Mining And Manufacturing Company Electrical interconnection system and device
US6135781A (en) * 1996-07-17 2000-10-24 Minnesota Mining And Manufacturing Company Electrical interconnection system and device
EP1160924A1 (fr) * 2000-05-30 2001-12-05 Société Anonyme SYLEA Dispositif de liaison électrique pour organe de contact électrique mâle et élément de boítier destiné à recevoir un tel dispositif
FR2809872A1 (fr) * 2000-05-30 2001-12-07 Sylea Dispositif de liaison electrique pour organe de contact electrique male et element de boitier destine a recevoir un tel dispositif
US6409554B2 (en) 2000-05-30 2002-06-25 Sylea Electrical connection device for directly joining a conductor to a male electrical contact member

Also Published As

Publication number Publication date
ATE9048T1 (de) 1984-09-15
FI811585L (fi) 1981-11-24
EP0040783B1 (fr) 1984-08-15
DE3019841A1 (de) 1981-12-03
DE3165533D1 (en) 1984-09-20
NO811719L (no) 1981-11-24

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