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EP2178171A1 - Contact à fiches électrique - Google Patents

Contact à fiches électrique Download PDF

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Publication number
EP2178171A1
EP2178171A1 EP08017938A EP08017938A EP2178171A1 EP 2178171 A1 EP2178171 A1 EP 2178171A1 EP 08017938 A EP08017938 A EP 08017938A EP 08017938 A EP08017938 A EP 08017938A EP 2178171 A1 EP2178171 A1 EP 2178171A1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
recess
tongue
contact tongue
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Withdrawn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
EP08017938A
Other languages
German (de)
English (en)
Inventor
Wolf Neumann-Henneberg
Bruno Kassnel-Henneberg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP08017938A priority Critical patent/EP2178171A1/fr
Publication of EP2178171A1 publication Critical patent/EP2178171A1/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Withdrawn legal-status Critical Current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
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin

Definitions

  • the invention relates to an electrical plug contact with the features of the preamble of claim 1.
  • the utility model DE 203 04 748 U1 discloses a designated as a high current contact element electrical plug contact with a punched from a sheet, such as copper sheet contact tongue and with a spring clip, which consists of a resilient steel.
  • the spring clip is stamped from a steel sheet and bent into a U-shaped spring clip, so that two plate-shaped spring arms are formed.
  • the contact tongue passes through the spring clip in the bending region and is located between the two spring arms.
  • a likewise plate-shaped mating contact can be inserted between the contact tongue and one of the two spring arms.
  • the spring arm presses the mating contact against the contact tongue.
  • the object of the invention is to propose such a plug contact with a structurally different spring clip.
  • the spring clip of the electrical plug contact according to the invention is a lamella, that is a plate-shaped, for example punched steel sheet element.
  • the blade is flat, but it may also be uneven, for example, curved in the longitudinal direction or curved in the transverse direction or be wavy. The list is not exhaustive.
  • the two spring arms of the blade which forms the spring clip of the plug contact according to the invention, not by bending, but by punching. The spring arms spring in the plane of the spring clip and not perpendicular thereto.
  • An advantage of the invention is that the spring clip can be produced by punching and without separate bending. Even if the spring clip is uneven, for example, curved, curved or wavy, it can be with a corresponding punch in one operation with the punching bring in the desired shape, a separate bending is not required.
  • the spring clip which presses an inserted counter contact against the contact tongue of the plug contact according to the invention, transmits an electric current in addition to the current transmitted by the direct contact of the two contacts, so that the current carrying capacity of the plug contact according to the invention is increased.
  • Another advantage is a low electrical contact resistance between the plug contact according to the invention and an inserted mating contact. A low contact resistance of electrical connectors is becoming increasingly important in practice, at least in the automotive sector.
  • the spring clip does not require any space to the side of the contact tongue, so that a narrow plug contact is possible, which is not wider than the contact tongue.
  • one embodiment of the invention provides a number of spring clips in the form of a plate pack, that is to say a number of lamellae arranged parallel to one another, in particular congruent and abutting one another. There are already two slats are considered as a plate pack in the context of the invention.
  • the current carrying capacity of the plug-in contact according to the invention can be increased in a simple manner to a multiple. It is possible without further currents of a few 100 amperes.
  • an embodiment of the invention For attachment of the spring clip to the contact tongue, an embodiment of the invention provides a recess in the contact tongue, in which a foot portion of the spring clip is received.
  • the foot area is an area of the contact tongue which integrally connects the two spring arms.
  • the recess of the contact tongue can be open in one place.
  • This embodiment of the invention allows easy attachment of the spring clip or spring clips on the contact tongue without additional connecting parts. Also, a closed recess, so a hole in the contact tongue is possible if the recess and the spring clip are designed so that the spring clip can be used with its foot in the recess.
  • An embodiment of the invention provides a projection on one of the two spring arms of the spring clip which projects in the direction of the other spring arm.
  • the projection engages in a recess of the contact tongue and holds the spring clip by positive engagement in the recess in position on the contact tongue. In particular, a pressing aside the spring clip when inserting a mating contact is avoided.
  • the projection on the one spring arm of the spring clip and the corresponding recess in the contact tongue are designed so that the projection bears against at least two points of the recess, for example on two opposite edges of the recess.
  • a development of the invention provides that the projection having spring arm is designed so that it prevents insertion of a mating contact between this spring arm and the contact tongue. This ensures that the mating contact is inserted as intended on the other side of the contact tongue between this and the other spring arm.
  • Such a design is possible, for example, by a free front end of the projection having spring arm is designed so that it is perpendicular to the contact tongue or so beveled or rounded, that pressed against the front end of the spring arm mating contact the spring arm against the contact tongue instead of away from her applied.
  • the lamella forming the spring clip can be aligned in the longitudinal direction of the contact tongue.
  • One embodiment provides an arrangement of the blade obliquely to the contact tongue.
  • the oblique arrangement is also possible with a disk pack as spring clips.
  • the arrangement of the slat / s obliquely to the contact tongue allows seen in the lateral direction of the contact tongue, the spring clip exerts a contact pressure approximately in a center of the contact tongue and a foot portion of the spring clip is located on one side of the contact tongue. This allows a laterally open recess in the contact tongue for receiving the foot region of the blade, which protrudes only slightly inwards and weakens the contact tongue only slightly.
  • an embodiment of the invention provides an attachment to the contact tongue, which is located on one side of a Spring arm of the spring clip is located and supports the spring clip against the force exerted during insertion of the mating contact torque.
  • the system can be, for example, an embossing point.
  • An embodiment of the invention provides a recess, for example in the form of a slot in the spring clip, which is located on a side facing away from the spring arms of the foot region of the blade.
  • the recess is open at a location remote from the foot area and in the recess is the contact tongue.
  • the recess of the blade narrows on the side facing away from the spring arms of the foot area. The recess is so narrow that it comes into contact with the contact tongue during insertion of the mating contact and rests with bias on the contact tongue.
  • the recess may also be narrower, for example it may be as wide as the contact tongue is thick.
  • the recess of the lamella can also be narrower, in this case, it is also with bias on the contact tongue, if no mating contact is inserted into the plug contact.
  • the lamella has additional contact points at which a Stormionatgang between the blade and the contact tongue. This increases the current carrying capacity of the plug contact and reduces the electrical contact resistance.
  • the in FIG. 1 illustrated electrical plug-in contact 1 has a contact tongue 2 and a number of spring clips 3.
  • the contact tongue 2 is a flat sheet metal strip, in particular made of copper sheet, which is mechanically and electrically conductively connected to a power cable 4 at a, subsequently referred to as the rear end.
  • the connection is possible in any known manner, for example by compression or friction welding, for example ultrasonic welding.
  • a mating contact 5 is inserted into the electrical plug-in contact 2.
  • the mating contact 5 is also a metal strip made of copper sheet in particular with the same width as the contact tongue 2 of the plug contact 1.
  • the plug contact 2 far hereinafter referred to as the rear End is connected to a cable 6 mechanically and electrically conductive.
  • the spring clips 3 are slats 14, which are arranged as a plate pack 15 parallel to each other and congruent to each other.
  • the fins 14 may be stanzpiert.
  • the fins 14 are flat and stamped from a resilient sheet steel, FIG. 2 shows a single blade 14.
  • the blade 14 has two mutually parallel spring arms 7, which are integral with each other in a foot region 8.
  • the contact tongue 2 and, if inserted, the mating contact 5 are located between the spring arms 7.
  • the lamella 4 On a side of the foot region 8 facing away from the spring arms 7, the lamella 4 has a recess 9 which is open at a point remote from the foot region 8.
  • the recess 9 has a dovetail shape. At its narrowest point, the recess 9 is approximately as wide as the contact tongue 2 is thick.
  • the slats 4 forming the spring clips 3 spring in the slat planes.
  • the blade 14 abuts against the contact tongue 2 of the plug-in contact 1.
  • the plugged counter contact 5 is the narrowest point of the recess 9 with bias on the contact tongue 2 at.
  • the slats on additional contact points which increase the current carrying capacity of the plug-in contact 1 and reduce its electrical contact resistance.
  • the spring arms 7 projections 10, 11 which are directed in a space between the two spring arms 7, ie, the other spring arm 7 are facing.
  • the projection 10 of a spring arm 7 is rounded and runs with an inclined surface which forms an insertion bevel 12, to the free end of the spring arm 7 back out.
  • the projection 11 of the other spring arm 7 is also rounded and has at its highest point an approximately rectangular elevation 13 with rounded corners. As the highest Part is the part of the projection 11 which is closest to the other spring arm 7.
  • the plate pack 15, which forms the spring clips 3, is arranged obliquely to a longitudinal direction of the contact tongue 2, so that the spring arms 7 extend away from the rear, connected to the cable 4 end of the contact tongue 2 away in the direction of its front end.
  • the contact tongue 2 is located between the two spring arms 7. Seen in the lateral direction of the contact tongue 2 are the projections 10, 11 approximately in the middle of the contact tongue 2.
  • the contact tongue 2 has a recess 16 which is executed in the embodiment as a rectangular punched , In the recess 16, the projections 13 of the projection 11 of a spring arm 7 of the blades 14 engage, so that the blade 14 is held in particular in the lateral direction of the contact tongue 2.
  • the contact tongue 2 has a rectangular, laterally open recess 17 in which the foot portions 8 of the slats 7 are received.
  • the dovetail-shaped recesses 9 are at their narrowest points, ie at the mouth of the recesses 9, on a side facing away from the spring arms 14 of the recess 17 of the contact tongue 2 at the contact tongue 2.
  • the insertion bevel 12 at the free end of a spring arm 7 facilitates the insertion of the mating contact 2 between these spring arm 7 and the contact tongue 2 of the plug contact 1.
  • the insertion bevel 12 is in FIG. 2 drawn, in FIG. 1 it is hidden by the contact tongue and the mating contact 5 and therefore not visible.
  • the free end face of the other spring arm 7 has no insertion bevel or the like., But runs perpendicular to the contact tongue 2 and thereby prevents insertion of the mating contact 5 on this, in FIG. 1 It is prevented that the elevation 13 of the projection 11 of this spring arm 7 is lifted out by inserting the mating contact 5 from the rectangular recess 16 of the contact tongue 2 the upper side of the contact tongue 2 between these spring arm 7.
  • the engagement of the elevations 13 of the spring arms 7 of the lamellae 14 in the recess 16 of the contact tongue 2 holds the obliquely to the contact tongue 2 aligned slats 14 in the lateral direction against pushing away to the side by inserting the mating contact 5.
  • a system for the spring arms 7 may for example be an embossing point.
  • the facility is located in FIG. 1 behind the spring arms 7 and is therefore not visible.
  • the system may additionally or instead of the elevations 13 of the fins 14 and the recess 16 in the contact tongue 2, in which the elevations 13 engage, may be provided.
  • a current transition takes place at the electrical plug contact 1 according to the invention not only directly between the contact tongue 2 of the plug contact 1 and the inserted counter contact 5, which are pressed by the spring clips 3 against each other.
  • a current transition takes place via the spring clips 3, whose projections 10, 11 bear against the contact tongue 2 and the mating contact 5 with a contact pressure.
  • the electrical plug-in contact 1 Due to the power transmission not only directly between the contact tongue 2 and the mating contact 5, but in addition via the spring clips 3, the electrical plug-in contact 1 according to the invention has a low electrical contact resistance, which can also theoretically arbitrarily decrease by increasing the number of slats 3.
  • a low contact resistance is becoming increasingly important advantage of an electric conductive connection.
  • the contact resistance is further reduced by the fact that the spring clips 3 abut with the projections 11 and the elevations 13 at at least two points, namely at opposite edges of the recess 16 of the contact tongue 2, in which the elevations 13 engage.
  • the fins 14 are not on the side over the contact tongue 2, the plug contact 1 is only as wide as its contact tongue. 2
  • the spring clip 3 may also be formed in the manner of a frame, so that the spring arms 7 at both ends by connecting portions 21st are integrally connected to each other.
  • FIG. 4 shows such a spring clip 3 or lamella 14 as a single part.
  • the lamella 14 has the shape of a rectangular frame whose long sides are formed by the spring arms 7 and whose narrow sides form the connecting portions 21 which connect the spring arms 7 integral with each other at both ends. It eliminates the recess 9 (see. FIG. 2 ).
  • the foot portion 8 of the fork-like spring clip 3 is in the frame-like spring clip 3 of a connecting portion 21 in the laterally disposed and laterally open recess 17 of the contact tongue 2 a.
  • the engagement of the elevation 13 in the recess 16 in the middle of the contact tongue 2 keeps the spring clip 3 in its orientation obliquely to the contact tongue 2 and prevents the spring clip 3 is pushed away when inserting the mating contact 5 to the side.
  • the blade 14, which forms the spring clip 3, in FIG. 4 and the plug contact 1 in FIG. 3 the same education as in FIG. 2 respectively.
  • FIG. 1 To explain the Figures 3 and 4 is supplemented by the explanations given by FIGS. 1 and 2 directed. Same components have the same reference numbers.
  • the formation of the spring clip 3 as a frame with spring arms 7 connected to each other at both ends allows a higher contact pressure than a fork-like spring clip whose spring arms 7 have free ends.
  • the formation of the spring clip 3 acts as a frame of relaxation, ie a decrease in the spring force of the spring arms 7 during permanent stress, ie at permanently plugged mating contact 5, contrary. The contact pressure remains permanently high almost unchanged.
  • the higher contact pressure increases the current carrying capacity and reduces the electrical contact resistance between the plug contact 1 and the mating contact 5. Since the spring clip 3 is aligned obliquely to the contact tongue 2, the mating contact 5 in FIG. 3 unchanged as well as in FIG. 1 straight aligned to the contact tongue 2 between the two spring arms 7 of the spring clip 3 insert.
  • the connecting portion 21 of the spring clip 3 is located laterally next to the mating contact 5. By contact of the connecting portion 21 on the mating contact 5, the plug contact 1 is made FIG. 3 an additional contact point with the mating contact 5, whereby the current carrying capacity is further increased and the electrical contact resistance is further reduced.
  • the electrical plug contact 1 is in FIG. 5 without the cable 4 shown and there is no mating contact plugged.
  • the contact tongue 2 is also a flat punched part made of sheet metal, in particular copper sheet, in contrast to FIG. 1 However, it is not continuous straight, but cranked, that is, angled twice in opposite directions.
  • the lamellae 14, which form the spring clips 3, can thereby be aligned straight, ie aligned in the longitudinal direction of the contact tongue 2.
  • a back of the contact tongue 2 is free, in it a rectangular recess 19 is mounted, engage in the foot portions 8 of the fins 14, so that the fins 14 are held in the lateral direction. So that the recess 19 is visible, only three fins 14 are shown. In itself, so many fins 14 are provided that they occupy the width of the recess 19.
  • FIG. 5 missing the recesses 9 of the fins 14 on the spring arms 7 side facing away from the foot areas 8.
  • the main differences between the plug contact 1 from FIG. 5 and the one out FIGS. 1 and 2 So are the crank 18 of the contact tongue 2, the straight arrangement of the fins 14 in the longitudinal direction of the contact tongue 2 and the absence of the recess 9 of the fins 14 of the plug contact 1 from FIG. 5 , Moreover, the plug contact 1 is off FIG. 3 coincident with the plug contact 1 off FIGS. 1 and 2 trained and works in the same way. To explain the FIG. 5 In addition, the explanations of the FIGS. 1 and 2 referenced.

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  • Coupling Device And Connection With Printed Circuit (AREA)
EP08017938A 2008-10-14 2008-10-14 Contact à fiches électrique Withdrawn EP2178171A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08017938A EP2178171A1 (fr) 2008-10-14 2008-10-14 Contact à fiches électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08017938A EP2178171A1 (fr) 2008-10-14 2008-10-14 Contact à fiches électrique

Publications (1)

Publication Number Publication Date
EP2178171A1 true EP2178171A1 (fr) 2010-04-21

Family

ID=40386343

Family Applications (1)

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EP08017938A Withdrawn EP2178171A1 (fr) 2008-10-14 2008-10-14 Contact à fiches électrique

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EP (1) EP2178171A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064243A1 (fr) * 2011-11-03 2013-05-10 Bayerische Motoren Werke Aktiengesellschaft Connecteur enfichable à courant fort pour applications dans des véhicules à moteur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058119B (de) * 1957-09-24 1959-05-27 Standard Elektrik Lorenz Ag Steckkontaktfedern
DE10054661A1 (de) * 2000-11-03 2002-05-29 Phoenix Contact Gmbh & Co Elektrische Anschluß- oder Verbindungseinrichtung
DE10117061A1 (de) * 2001-04-05 2002-10-10 Delphi Tech Inc Elektrischer Verbinder
DE20304748U1 (de) 2003-03-24 2004-07-29 Ghw Grote & Hartmann Gmbh Elektrisches Hochstromkontaktelement
DE20305313U1 (de) * 2003-04-01 2004-08-12 Weidmüller Interface Gmbh & Co. Anschlußeinrichtung
US20060223385A1 (en) * 2005-04-04 2006-10-05 Lear Corporation Electrical connector assembly and system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058119B (de) * 1957-09-24 1959-05-27 Standard Elektrik Lorenz Ag Steckkontaktfedern
DE10054661A1 (de) * 2000-11-03 2002-05-29 Phoenix Contact Gmbh & Co Elektrische Anschluß- oder Verbindungseinrichtung
DE10117061A1 (de) * 2001-04-05 2002-10-10 Delphi Tech Inc Elektrischer Verbinder
DE20304748U1 (de) 2003-03-24 2004-07-29 Ghw Grote & Hartmann Gmbh Elektrisches Hochstromkontaktelement
DE20305313U1 (de) * 2003-04-01 2004-08-12 Weidmüller Interface Gmbh & Co. Anschlußeinrichtung
US20060223385A1 (en) * 2005-04-04 2006-10-05 Lear Corporation Electrical connector assembly and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064243A1 (fr) * 2011-11-03 2013-05-10 Bayerische Motoren Werke Aktiengesellschaft Connecteur enfichable à courant fort pour applications dans des véhicules à moteur

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