EP3662543A1 - Contact mâle électrique pour applications à fort courant et système de connecteur pour applications à fort courant - Google Patents

Contact mâle électrique pour applications à fort courant et système de connecteur pour applications à fort courant

Info

Publication number
EP3662543A1
EP3662543A1 EP18749346.5A EP18749346A EP3662543A1 EP 3662543 A1 EP3662543 A1 EP 3662543A1 EP 18749346 A EP18749346 A EP 18749346A EP 3662543 A1 EP3662543 A1 EP 3662543A1
Authority
EP
European Patent Office
Prior art keywords
cable
contact
plug contact
strands
contacting
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
EP18749346.5A
Other languages
German (de)
English (en)
Other versions
EP3662543B1 (fr
Inventor
Rolf Wittmann
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 EP3662543A1 publication Critical patent/EP3662543A1/fr
Application granted granted Critical
Publication of EP3662543B1 publication Critical patent/EP3662543B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular 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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Definitions

  • the invention relates to an electrical plug contact for high current applications.
  • the invention further relates to a connector system for high current applications.
  • a contact in which the damping element consists of a flexible braid.
  • From DE-10201 1076988 contacts are known, which are not designed as a socket, but have a protruding toward one side contact blade, which contacts directly to a conductive counter body. Such contacts are known as direct contact.
  • the invention is based on the recognition that in the cable cross-sections of several square millimeters (mm 2 ) used for the transmission of high currents considerable oscillatory loads are introduced into the contact, which could only be absorbed by a single damping element, if this very filigree and flexurally elastic is. At the same time, however, it should transmit the high currents (I »10A) with low electrical resistance, ie even a large conductor cross-section and - - have short length. This represents a conflict of objectives for filigree mechanical design.
  • an electrical plug contact for
  • the plug contact comprises a housing which extends along a longitudinal axis and has an interior for receiving a mating contact element.
  • the plug contact further comprises a cable which is formed from a plurality of strands, wherein the cable of a
  • the cable has an end in the interior, wherein the cable has adjacent to the end of a damping portion in which the cable is split into a plurality of separate cable strands, wherein at least two strands of cable, a contact element is fixed.
  • the contacting elements are particularly suitable for electrical and mechanical contacting of the mating contact element. In this case, a contacting element is advantageously fixed to the at least two line strands.
  • a “plurality of elements” means at least two elements.
  • contacting elements are connected to most of the line strands. Very particularly preferably contacting elements are connected to all line strands.
  • the contacting elements may initially be separate elements from the cable or from the cable strands. You can e.g. be determined by a crimp on the strands or by a material connection, such. a
  • the contacting elements may e.g. be produced as a stamped bent parts from a metal sheet. You can e.g. a resilient element and / or a kind of contact blade, which / which in the direction of the contact surface of the Conssteckenden
  • Counter-contact element has, for example in a radial direction, ie in a direction transverse to the longitudinal axis.
  • the contacting element can also have a latching element, for example in the form of an obliquely outwardly projecting, elastically reversible inwardly resilient latching lance.
  • a locking element can, for example, in the housing of the plug contact on a - -
  • Connector housing e.g. be made of plastic and engage in a Verrastgeometrie the contact.
  • the current-carrying cable can be firmly connected to the housing or to a wall of the housing. It may be advantageous to realize a fixed connection as possible. This can be advantageous introduced by the connection
  • Vibrations are particularly well derived through the housing.
  • the cable can advantageously at least outside the housing of the plug contact, so in the outer space, have an insulation or an insulating jacket, for example.
  • the insulation or the insulating jacket can also be performed up in the interior of the housing.
  • the live parts of the cable in particular the plurality of strands, may be formed of a material which conducts electrical current very well, e.g. Copper, aluminum or alloys of these materials.
  • the mating contact element to be inserted into the plug contact usually has a radially outwardly facing surface, its contact surface, which comprises a material from the group consisting of silver, gold, tin, nickel or alloys of the materials mentioned.
  • the strands may also be coated, e.g. tinned.
  • an extension length of the wire strands 5 in the damping portion 4 is at least 20% greater than a length L of the damping portion 4 along the longitudinal axis A is advantageously causes a particularly good vibration damping.
  • the damping section can be between the wiring harness
  • the attenuation section extends between the strands - - facing end of the Kunststoffierelements and the point of the cable to which the individual strands are performed separately.
  • the cable has an electrically conductive cross section of at least 10 mm 2 advantageously has the effect that the cable has a high current carrying capacity of at least 10 A, preferably of at least 50 A and very particularly preferably of at least 150 A.
  • the cable has an electrically conductive
  • the cross section can be determined, for example, perpendicular to the longitudinal axis.
  • each wiring harness is formed from a plurality of strands, a particularly high current carrying capacity of the line strands and a high mechanical stability of the individual wiring harness are achieved.
  • each strand of wire is sufficiently mechanically stable and current carrying capacity and it can be easily connect a contact with him.
  • the cross section of each wiring harness is in a range of 0.5mm 2 and 2mm 2 .
  • damping portion is arranged completely in the interior of the housing is advantageously causes the plug contact is compact and the risk of unwanted short circuit between two plug contacts or a hook between two plug contacts remains low.
  • Housing envelops the damping section and lives this one.
  • the line strands in the damping portion extend along a shape which is selected from the group: a bow, an omega-shaped loop, a loop is advantageously causes a particularly good damping of vibrations.
  • the proposed forms can be in a small space or a small
  • the contacting elements are arranged along a circle about an axis, wherein the axis extends parallel to the longitudinal axis (A) is advantageously ensured a particularly secure electrical and mechanical contacting of the contact surfaces of the mating contact element.
  • An inserted into such a trained contact element mating contact element is automatically centered by the contacting elements in the radial direction, ie transverse to the longitudinal axis. If the mating contact element is displaced by a vibration in a radial direction, the contact pressure on one of the contacting elements could indeed be reduced, but at the same time the contact pressure on the opposite contacting element increases. Thereby, a reliable electrical contact between the contact element and the
  • the connector system includes an electrical plug contact as described above.
  • the connector system further comprises a mating contact element.
  • the mating contact element is contacted mechanically and electrically with the contacting elements.
  • a connector system is advantageously provided, which at the same time has a particularly good vibration damping and high current carrying capacity of more than 10A, preferably of more than 50A and is easy and inexpensive to produce with only a few elements.
  • the mating contact element may e.g. have on its radially outwardly facing outside at least one material which is selected from the group silver, gold, tin, nickel or alloys of the materials mentioned. This allows a particularly high current carrying capacity and, when using precious metals, a particularly good corrosion resistance. Also, this can be a particularly low
  • Transition resistance can be effected.
  • the mating contact element has a round cross section, the mating contact element is particularly easy to manufacture and can be inserted particularly easily into the plug contact or its housing, since there is no preferred direction in the circumferential direction about the longitudinal axis. It is also very easy to contact. It can therefore be designed as a so-called round pin. - -
  • the mating contact element may e.g. along a direction of insertion into the
  • the interior of the housing may correspond to a circular
  • the mating contact element can be inserted particularly easily, characterized in that the mating contact element is designed as a flat blade and the plug contact is designed for sliding onto the flat blade, wherein the
  • Contacting contact surfaces of the flat blade electrically and mechanically contacting a particularly reliable and cost-effective vibration isolation can also be provided for contacting and / or for direct contacting formed as a flat blade contacts of male connectors.
  • Such a contact can be provided by a single contact element per flat blade.
  • the flat blade is electrically contacted only from one side.
  • the electrical plug contact may have a plurality of contacting elements next to one another, each of which contacts a flat blade.
  • the electrical plug contact for contacting each flat blade may e.g. also have two opposing contacting, between which then the flat blade can be inserted for contacting.
  • a gap or a slot or a kind of shaft may be formed, in which the flat blade of a male connector for electrical contacting
  • Fig. 1 a perspective view of a cable of a plug-in contact
  • FIG. 2a shows a schematic cross section of a plug-in contact
  • Fig. 2b a front view of the plug contact of Fig. 2a
  • Fig. 2c a schematic detail view of the cable from the
  • Figs. 3a-3c different embodiments of the course of the cable in
  • Fig. 4 a schematic detail view of the cable in another
  • FIG. 1 shows a cable 1 for an electrical plug contact for high-current applications, wherein the cable extends along a longitudinal axis A.
  • the cable 1 is formed of a plurality of strands 5a. In each case, several strands 5a to one
  • Wiring harness 5 bundled.
  • the cable is thus formed from a plurality of strands of wire 5.
  • the strands of wire 5, however, are all each with an adjacent one
  • Wiring harness 5 in electrical and mechanical contact and not separately guided or spaced from each other.
  • the cable 1 is fairly rigid compared to separately guided strands of wire 5 or even individual strands 5a.
  • it is flexurally elastic than a cable, which is formed of a solid material.
  • the cable 1 is very compact in a radial direction R, which extends transversely to the longitudinal axis A and therefore can be easily wrapped with an insulation 2, which is formed as an insulating jacket.
  • the cable 1 also has a high current carrying capacity due to the multiplicity of strands.
  • the strands 5a of the cable 1 may comprise, for example, as material copper, aluminum, tin, silver or alloys of the materials.
  • the strands can also be coated, eg tin-plated.
  • the insulation 2 may have an electrical conductivity, at least to - - Two orders of magnitude less than that of the strands. It may be formed from a poorly electrically conductive plastic.
  • the cable 1 is designed to conduct high currents, eg at least 10A, preferably at least 50A and most preferably at least 150A. It may for this purpose have a cross-section of, for example, at least 5 mm 2 , preferably of at least 10 mm 2 and very particularly preferably of at least 25 mm 2 .
  • the cable 1 may have a cross section of 25mm 2 or 50mm 2 or 100mm 2 .
  • the circumferential direction U is shown, which rotates the longitudinal axis A.
  • FIG. 2a shows a schematic cross-section through a connector system 100 for high current applications.
  • the connector system 100 has an electrical plug contact 10 for high-current applications and a mating contact element 8.
  • the plug contact 10 comprises a housing 20 which extends along a longitudinal axis A and has an inner space 21 for receiving the mating contact element 8. Outside the plug-in contact 1 is an outer space 22 of the plug-in contact 1. The interior 21 may be bounded by a wall 23.
  • the plug-in contact 10 further comprises a cable 1, which may at least partially correspond to the cable 1 of Figure 1.
  • the cable 1 is formed as that in Figure 1 from a plurality of strands 5a. In this case, the cable 1 from the outer space 22 of the housing 20 in the
  • Interior 21 of the housing 20 out and attached to the housing 20 can be done with conventional fastening means 9, e.g. with clamps, union nuts, clamps etc.
  • the cable 1 has an end 1 a in the interior 21.
  • the cable 1 has adjacent to the end 1 a a damping section 4.
  • the cable 1 is in the
  • Damping section 4 split into a plurality of separate strands of wire 5.
  • line strands 5 shown in Figure 1 are the
  • a contact element 6 is fixed to at least two line strands 5. These contacting elements 6 are suitable, the
  • Counter contact element 8 in the inserted into the housing 20 state mechanically and - - to contact electrically.
  • the contacting elements 6 face each other in the
  • Housing 20 is arranged and define a memoriierraum 7, in which the
  • Counter contact element 8 can be inserted.
  • the Kunststoffier institute 6 have on their the contacting space 7 facing surfaces contact lamellae 6a, which may be formed as a resilient contact tongues and with a contacting surface of the mating contact element 8 can come into mechanical and electrical contact as soon as the mating contact element is inserted into the contacting space 7.
  • Contact elements may be set narrowly tolerated along the longitudinal axis A in their position in the housing 20, e.g. by a locking lance 6c shown in FIG. 4, which latches in the interior 21 of the housing 20.
  • the vibration decoupling of the cable 1 is made possible by the damping section 4, which is arranged completely in the illustrated embodiment in the interior 21 and is housed by the housing 20.
  • the damping section 4 has along the longitudinal axis A on a length L, which is located between the
  • Line strands however, have in the damping section 4 along their respective direction of extent a length L1 which is at least 10% greater than the length L of the attachment portion 4.
  • the length L1 of the strands 5 is at least 50% greater than the length of the attachment portion 4.
  • the mating contact element 8 has not yet been inserted into the housing 20 along an insertion direction E, which here runs parallel to the longitudinal axis A.
  • FIG. 2b shows a plan view of an insertion opening 25 for the mating contact element 8 in the housing 20.
  • the contacting elements 6 are arranged on a circle which rotates about an axis parallel to the
  • Figure 2c shows a plan view of the cable 1 in the plug contact 10 of Figure 2a. It is shown from right to left, as the strands of wire 5 initially intertwined within the insulation 2 run. Subsequently, the strands of wire 5 continue to interlace as shown in Figure 1 in a stripped section.
  • the damping section in which the line strands 5 are unbound, that is separated from each other - they are here mechanically decoupled from each other.
  • the contacting elements 6 adjoin the damping section 4 and are each fastened to a free end of a separate wiring harness 5 in a connecting section 6b of the contacting element 6.
  • the wiring harness 5 e.g. be crimped (see Figure 2c), but it can also be soldered, welded or e.g. be glued with a conductive adhesive.
  • the contacting elements may e.g. be made of a thin or thicker sheet metal with a material thickness of 0.1 mm to 5mm, preferably 1 mm to 3mm. They can be designed as stamped and bent parts.
  • the mating contact element 8 may e.g. be designed as a round element or contact blade. It may have as its material aluminum or copper or silver or alloys of these substances. On its outer radial surface it may e.g. coated with a material comprising gold, silver, copper, platinum, tin or alloys of these materials.
  • FIGS. 3a-3c show various shapes in which the separated line strands 5 of the cable 1 can run in the damping section.
  • Fig. 3a shows the shape of a bow.
  • FIG. 3b shows the shape of an omega-shaped loop, and
  • FIG. 3 shows the shape of a loop or a looping loop.
  • Embodiments as long as possible decoupling distance or length L1 of the respective separated wiring harness 5 can be effected over a short distance along the longitudinal axis A. Accordingly, the damping effect against vibrations can be improved.
  • FIG. 4 shows a connector system 100 in which the mating contact element 8 is formed by a flat blade 30 having a contact surface 31.
  • the mating contact element 8 is formed by a flat blade 30 having a contact surface 31.
  • the housing 20 has been omitted, which ensures that the contacting element 6 is pressed against the contact surface 31 (similar to a slot for insertion of an SD card in an SD card reader).
  • FIG. 1 shows the damping section 4, at the end (farther to the right) the contacting element 6 in the connecting section 6b, e.g. is crimped.
  • the flat blade 30 may also have on its side facing away from the contact surface 31 side facing downward in the figure, a further contact surface.
  • the contacting can then be carried out by an electrical plug contact 10, which is formed as that in Fig. 4, but has a further contact element, which is opposite to the contacting element 6 and contacted the further contact surface electrically and mechanically.
  • a gap or slot or shaft can be formed, in which the flat blade 30
  • the contacting element 6 and the further contacting element can be mechanically connected to one another such that they clamp the flat blade 30 between them and thus always apply a sufficiently high contact force acting on both sides of the flat blade.
  • Such an electrical plug contact 10 can also contact several flat blades of a male connector simultaneously. In this case, a plurality of pairs of opposing contacting elements 6 and further contact elements are then arranged in a row next to one another.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un contact mâle électrique pour applications à fort courant. Le contact mâle comprend un boîtier (20), lequel s'étend le long d'un axe longitudinal (A) et comporte un espace intérieur (21) pour l'accueil d'un contre-contact (8). Le contact mâle comprend en outre un câble (1), lequel est constitué d'une pluralité de cordons (5a), le câble (1) étant conduit depuis un espace extérieur (22) du boîtier (20) dans l'espace intérieur (21) du boîtier (20) et étant fixé au boîtier (20). Le câble (1) comporte dans l'espace intérieur (21) une extrémité (1a), le câble (1) comportant de manière adjacente à l'extrémité (1a) une section d'atténuation (4) dans laquelle le câble (1) est divisé en une pluralité de brins de conduction (5) séparés, un élément de contact (6) qui est approprié à la,mise en contact électrique et mécanique du contre-contact (8) étant fixé à au moins deux brins de conduction (5).
EP18749346.5A 2017-07-31 2018-07-31 Contact mâle électrique pour applications à fort courant et système de connecteur pour applications à fort courant Active EP3662543B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017213150.0A DE102017213150A1 (de) 2017-07-31 2017-07-31 Elektrischer Steckkontakt für Hochstromanwendungen und Steckverbindersystem für Hochstromanwendungen
PCT/EP2018/070668 WO2019025402A1 (fr) 2017-07-31 2018-07-31 Contact mâle électrique pour applications à fort courant et système de connecteur pour applications à fort courant

Publications (2)

Publication Number Publication Date
EP3662543A1 true EP3662543A1 (fr) 2020-06-10
EP3662543B1 EP3662543B1 (fr) 2024-02-28

Family

ID=63079917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18749346.5A Active EP3662543B1 (fr) 2017-07-31 2018-07-31 Contact mâle électrique pour applications à fort courant et système de connecteur pour applications à fort courant

Country Status (5)

Country Link
US (1) US11024997B2 (fr)
EP (1) EP3662543B1 (fr)
CN (1) CN110892590B (fr)
DE (1) DE102017213150A1 (fr)
WO (1) WO2019025402A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017213150A1 (de) * 2017-07-31 2019-01-31 Robert Bosch Gmbh Elektrischer Steckkontakt für Hochstromanwendungen und Steckverbindersystem für Hochstromanwendungen
DE102019109394A1 (de) * 2019-04-10 2020-10-15 Lisa Dräxlmaier GmbH Anschlussleitung für hohe ströme und/oder spannungen, prüfvorrichtung und verfahren zum herstellen eines ausgleichsbereichs
FR3098745B1 (fr) * 2019-07-15 2022-06-24 Nidec Psa Emotors Procédé de soudage sans apport de matière

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Also Published As

Publication number Publication date
CN110892590A (zh) 2020-03-17
CN110892590B (zh) 2021-05-07
WO2019025402A1 (fr) 2019-02-07
DE102017213150A1 (de) 2019-01-31
US11024997B2 (en) 2021-06-01
US20200243996A1 (en) 2020-07-30
EP3662543B1 (fr) 2024-02-28

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