EP2048740A1 - Connecteur électrique avec un élément de serrage - Google Patents

Connecteur électrique avec un élément de serrage Download PDF

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Publication number
EP2048740A1
EP2048740A1 EP08105301A EP08105301A EP2048740A1 EP 2048740 A1 EP2048740 A1 EP 2048740A1 EP 08105301 A EP08105301 A EP 08105301A EP 08105301 A EP08105301 A EP 08105301A EP 2048740 A1 EP2048740 A1 EP 2048740A1
Authority
EP
European Patent Office
Prior art keywords
clamping
electrical
counter
clamping jaw
substrate
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Withdrawn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
EP08105301A
Other languages
German (de)
English (en)
Inventor
Soeren Kahl
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2048740A1 publication Critical patent/EP2048740A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • 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
    • 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
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures

Definitions

  • the invention relates to an electrical plug connection with a clamping element and a clamping element clamped by insertion counter element, wherein the clamping element is associated with an electrical conductor.
  • the plug connection has, for example, a connection terminal with a rigid housing and at least one clamping element designed as a contact spring element.
  • the housing of the terminal forms on its full width a continuous groove with a receiving space between mutually opposite groove walls, in which the counter element, for example, an edge of a circuit board formed as a circuit board, can be inserted.
  • the counter element is thus inserted into the receiving space for the production of the electrical plug-in connection and clamped therein by the clamping element designed as a contact spring element.
  • the contact spring element extends through one of the groove walls from the interior of the housing and ends with a first end region in the receiving space of the groove.
  • This first end region of the contact spring element is designed as an elastic contact spring region which clamps the edge of the board inserted in the receiving space between itself and the opposing (rigid) groove wall. If the board has at least one electrically conductive mating element formed on this edge as a contact pad (contact pad), it is also electrically contacted by the contact element when the connection terminal is suitably aligned.
  • the contact spring element is thus used simultaneously as a clamping element and as a contact element for producing an electrical contact.
  • a first end region opposite the second end portion of the contact spring element has, for example, a V-shaped arranged cutting pair for contacting the electrical conductors of a ribbon cable in insulation displacement technology or a screw for contacting stripped ends of cables designed as conductors.
  • Such a terminal of a connector has relatively large dimensions and is expensive to manufacture.
  • the clamping element is formed by a clamping jaw, which is integrally formed.
  • An integrally formed clamping jaw can be built very small and can be easily and inexpensively manufactured.
  • the clamping jaw is preferably substantially U-shaped.
  • the U-shape is formed by a base region and two leg regions adjoining in each case on one side of the base region, so that the clamping jaw forms a receiving space into which the counter element can be inserted.
  • the clamping element and a preferably designed as a further clamping element counter element are each formed by opposite leg portions of the U-shape.
  • the leg regions of the clamping jaw are formed in the manner of a leaf spring and are preferably arched in each case in a central region in the direction of the respective other leg region.
  • the integrally formed clamping jaw can thus overlap the inserted counter element, wherein the clamping element for mechanical connection of the electrical conductor with the counter element exerts a clamping force on the counter element, while the counter element exerts an oppositely acting counter clamping force on the opposite side.
  • electrical conductor and counter element are contacted with each other electrically.
  • the clamping jaw is made of electrical insulating material or electrically conductive material. If the clamping jaw made of electrical insulating material such as plastic, so it only serves to generate the clamping force. Alternatively, the clamping jaw on its surface - at least in the region of the receiving space - an electric Isolation on. This insulation does not contribute to the generation of the clamping force and is therefore not part of the clamping jaw. If the clamping jaw made of electrically conductive material, preferably metal, it forms in an advantageous embodiment, in addition, a contact element, via which the electrical conductor with the counter element is electrically contacted.
  • the electrical conductor is connected to the clamping jaw.
  • the clamping jaw consists in particular of electrically conductive material.
  • the conductor is soldered to the electrical connection, in particular to the clamping jaw, welded (in particular spot-welded), glued with conductive adhesive or connected by means of an insulation displacement connection.
  • the clamping jaw presses the electrical conductor to the counter element for making electrical contact.
  • at least a part of the electrical conductor between the clamping element and the counter element is arranged. Due to the force of the clamping element and the counterforce of the counter element of the clamping jaw of the electrical conductor is pressed onto the counter element and contacted with this electrically.
  • the electrical conductor is in particular a cable and the part of the electrical conductor arranged between the clamping element and the counter element is a stripped end of this cable. This end is pressed by the clamping jaw on the counter element, whereby the cable and counter element are electrically contacted.
  • the counter-element is arranged on an edge of a circuit carrier or circuit substrate.
  • the substrate is in particular a printed circuit board, preferably a printed circuit board of a control device of a vehicle.
  • the counter element is preferably a contact pad (contact pad). The contact pad is electrically connected to at least one trace of a circuit on the substrate.
  • the conductor is a single conductor of a ribbon cable.
  • a plurality of clamping elements, counter-elements and / or electrical conductors are arranged side by side.
  • two particularly preferred embodiments result: a clamping jaw consisting of electrical insulating material which presses juxtaposed electrical conductors for electrical contacting on a plurality of juxtaposed opposing elements or a plurality of adjacently arranged clamping mouths which are in each case electrically contacted with associated conductors with their respective clamping elements and / or counter elements formed as further clamping elements press against side-by-side opposing elements and effect a contacting of the counter-elements with the associated conductors.
  • the FIG. 1 shows an electrical connector 1 with a clamping jaw 2, to which a designed as a cable 3 electrical conductor 4 is electrically connected.
  • the electrical connection is designed as a solder joint 5.
  • the clamping jaw 2 is substantially U-shaped in the side view and is formed by a base region 6, and two leg regions 7, 8 of the clamping jaw 2 extending substantially parallel.
  • the leg region 7 forms a clamping element 9 and the leg region 8 forms a counter element formed as a further clamping element 10.
  • the electric Plug-in connection 1 furthermore has a counter element 12 designed as a contact field 11.
  • the contact pad 11 is arranged on an edge 13 of a circuit substrate 14, which can be inserted into the mouth of the clamping jaw 2, that is, a receiving space between the leg portions 7, 8.
  • clamping element 9 and the counter-element 12 are in directly contiguous counter-overlay. Since clamping element 9 and formed as a further clamping element 10 counter element are designed so that they are biased against each other with inserted substrate 14, the clamping element 9 presses with a clamping force (arrow 15) against the counter element 12 on a first side 16 (top) and as Another clamping element formed counter-element 10 with a counter to the clamping force directed counter clamping force (arrow 17) on one of the first side 16 opposite second side 18 (bottom) of the substrate 14.
  • the formed as a contact pad 11 counter element 12 is electrically connected to at least one on the first side sixteenth connected to the substrate 11 arranged conductor 19. By the in FIG. 1 shown connector 1 thus the electrical conductor 4 is electrically connected to the conductor 19 on the substrate 14.
  • the electrical connector 1 has a direct connection of the electrical conductor 4 to the clamping jaw 2, is suitable for the contacting of counter-elements 12 at the edge 13 of the substrate 14, wherein the electrical contact between the conductor 19 on the substrate 14 and the electrical conductor 4 by plugging (Fig. Arrow 20) of the clamping jaw 2 on the counter-element 12 and the edge 13 of the substrate 14 and their insertion into the receiving space of the clamping jaw 2 is generated.
  • Certain substrates 14 are made of organic materials which tend to form stress and temperature-dependent deformations (creep) at elevated temperatures and constant load. Furthermore, some substrates 14 (eg printed circuit boards) have high thermal expansion coefficients perpendicular to their surface.
  • the clamping jaw 2 of the connector 1 must therefore ensure a high spring force a high clamping force / counter clamping force (arrows 15, 17), so that deformations and thermal expansion of the substrate 14 are compensated and the electrical connection in external loads - especially when using the connector. 1 in a motor vehicle - withstands.
  • clamping jaw 2 Since the assembly of the substrate 14 typically protrudes on at least one side by at least two millimeters above the substrate 14, and the clamping jaw 2 may be dimensioned so that the requirement of clamping force and travel are met.
  • the clamping force / counter clamping force should be high enough in comparison to the stiffness of the connection in order to exclude a relative movement in the contact surface between clamping jaw 2 and counter element 12.
  • the contact pads 11 on the substrate 14 in particular have a surface that allows further contacting in the event that the clamping jaw 2 has to be pulled off to a defective substrate 14 and / or another defective component (for example, at the other end of the electrical conductor 4).
  • Another alternative is to aufko the clamping jaw 2 when loosening the connector 1, to then remove an electrical conductor 4 without force from the substrate 14 can. When re-contacting a new trained as a cable 3 electrical conductor 4 must then be used.
  • FIG. 2 shows a plug-in connection 1 with two alternatively configured embodiments of the clamping jaw 2.
  • This consists in two embodiments of electrical insulation material that presses for contacting a plurality of individual conductors 21 of a ribbon cable 22 formed electrical conductor 4 on a plurality of arranged on the edge 13 of the substrate 14 counter elements 12.
  • the clamping jaw at least on its surface on Recording room on an electrical insulation layer. This layer does not contribute to the generation of the clamping force and is therefore not part of the clamping jaw.
  • FIG. 2 Clamping jaw 2 shown above has two leg portions 7, 8 forming the clamping elements 9, 10, which are formed uniformly over their respective width B.
  • That in the FIG. 2 Clamping jaw 2 shown below has, for contacting the individual conductors 21 with associated counter-elements 12, individually formed clamping structures 23, 24, 25 adapted to the associated counter-elements 12.
  • the clamping structures 23, 24, 25 are formed as wells. These each have a width B1, B2, B3 which is individually adapted to the associated counter element and a depth T1, T2, T3 adapted to the required clamping force.
  • the individual conductors 21 of the ribbon cable 22 are free at their ends 26 of insulation and / or coating.
  • the cable 22 is placed with the stripped ends 26 on the contact pads 11 and fixed by sliding the clamping jaw 2.
  • the clamping jaw 2 engages around the edge 13 around. If a larger number of electrical conductors 4 is fixed with the clamping jaw 2, a separate resilient clamping element 9 is provided for each contact field 11, so that all conductors 4 are pressed with the same force on the associated contact fields 11. Alternatively, a choice of different clamping forces is possible, for example, high forces for wide current-carrying conductor 4 and low forces for narrow, signal-transmitting conductor. 4
  • a suitable layer can be applied to the surface of the clamping jaw 2, in particular in the region of the receiving space, for example a thin tin layer.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP08105301A 2007-10-08 2008-09-11 Connecteur électrique avec un élément de serrage Withdrawn EP2048740A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007048265A DE102007048265A1 (de) 2007-10-08 2007-10-08 Elektrische Steckverbindung mit einem Klemmelement

Publications (1)

Publication Number Publication Date
EP2048740A1 true EP2048740A1 (fr) 2009-04-15

Family

ID=39855166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105301A Withdrawn EP2048740A1 (fr) 2007-10-08 2008-09-11 Connecteur électrique avec un élément de serrage

Country Status (2)

Country Link
EP (1) EP2048740A1 (fr)
DE (1) DE102007048265A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20100677A1 (it) * 2010-08-04 2012-02-05 Tyco Electronics Amp Italia Srl Connettore elettrico atto a realizzare un contatto diretto fra un conduttore elettrico ed una rispettiva controparte

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012208587A1 (de) * 2012-05-22 2013-11-28 Osram Gmbh Leuchtvorrichtung mit treiber
DE102019122319A1 (de) * 2019-02-21 2020-08-27 Unger Kabel-Konfektionstechnik GmbH Leiterdirektkontaktierungsvorrichtung zum elektrischen Verbinden einer ersten Litze und einer zweiten Litze

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445604A (en) * 1945-04-11 1948-07-20 Nat Electric Prod Corp Contact clip
US3122604A (en) * 1958-11-12 1964-02-25 Steel City Electric Company Ground clip for electrical outlet and switch boxes
US3528050A (en) * 1969-05-02 1970-09-08 Holub Ind Inc Push-on type grounding clip
US3628228A (en) * 1969-03-28 1971-12-21 Amp Inc Apparatus for crimping electrical connectors to wires
US4993959A (en) * 1990-01-19 1991-02-19 Amp Incorporated Grounding clip
FR2694141A1 (fr) * 1992-07-23 1994-01-28 Cit Alcatel Agrafe auto-dénudante de mise à la masse d'un câble.
DE19513063A1 (de) * 1995-04-07 1996-10-10 Hager Electro Gmbh Anschlußklemme

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445604A (en) * 1945-04-11 1948-07-20 Nat Electric Prod Corp Contact clip
US3122604A (en) * 1958-11-12 1964-02-25 Steel City Electric Company Ground clip for electrical outlet and switch boxes
US3628228A (en) * 1969-03-28 1971-12-21 Amp Inc Apparatus for crimping electrical connectors to wires
US3528050A (en) * 1969-05-02 1970-09-08 Holub Ind Inc Push-on type grounding clip
US4993959A (en) * 1990-01-19 1991-02-19 Amp Incorporated Grounding clip
FR2694141A1 (fr) * 1992-07-23 1994-01-28 Cit Alcatel Agrafe auto-dénudante de mise à la masse d'un câble.
DE19513063A1 (de) * 1995-04-07 1996-10-10 Hager Electro Gmbh Anschlußklemme

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20100677A1 (it) * 2010-08-04 2012-02-05 Tyco Electronics Amp Italia Srl Connettore elettrico atto a realizzare un contatto diretto fra un conduttore elettrico ed una rispettiva controparte
EP2416451A1 (fr) * 2010-08-04 2012-02-08 Tyco Electronics AMP Italia S.r.l. Connecteur électrique
CN102437449A (zh) * 2010-08-04 2012-05-02 泰科电子（Amp)意大利公司 电连接器
US8651890B2 (en) 2010-08-04 2014-02-18 Tyco Electronics Amp Italia S.R.L. Electrical connector having spring clip assist contact
CN102437449B (zh) * 2010-08-04 2016-06-01 泰科电子（Amp)意大利公司 电连接器

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Publication number Publication date
DE102007048265A1 (de) 2009-04-09

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