EP3783744A1 - Elektrische verbinderanordnung - Google Patents

Elektrische verbinderanordnung Download PDF

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Publication number
EP3783744A1
EP3783744A1 EP19193311.8A EP19193311A EP3783744A1 EP 3783744 A1 EP3783744 A1 EP 3783744A1 EP 19193311 A EP19193311 A EP 19193311A EP 3783744 A1 EP3783744 A1 EP 3783744A1
Authority
EP
European Patent Office
Prior art keywords
lamellae
connection arrangement
blade
receiving space
electric connection
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.)
Pending
Application number
EP19193311.8A
Other languages
English (en)
French (fr)
Inventor
Henning Helmut RITTSTIEG
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.)
Yazaki Europe Ltd
Original Assignee
Yazaki Europe Ltd
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 Yazaki Europe Ltd filed Critical Yazaki Europe Ltd
Priority to EP19193311.8A priority Critical patent/EP3783744A1/de
Publication of EP3783744A1 publication Critical patent/EP3783744A1/de
Pending 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2492—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point multiple contact points
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable

Definitions

  • the present invention refers to an electric connection arrangement comprising a female terminal having a receiving space extending in direction of a longitudinal axis of the connection arrangement and being delimited by upper lamellae and lower lamellae, wherein the upper lamellae each have an inner surface facing the receiving space, and wherein the lower lamellae each have an inner surface facing the receiving space.
  • the connection arrangement further comprises a male terminal having a blade which blade is received within the receiving space in a mated condition of the connection arrangement.
  • the wires are located on straight lines, which are generatrices of the same family of a hyperboloid of revolution about said axis, containing the two circles on which said spaced points lie and having its throat located between said circles.
  • the object of the present invention is to provide a connection arrangement comprising a female terminal and a male terminal, which has a low electric contact resistance and is easy to manufacture.
  • the inner surfaces of the upper lamellae are formed concave in a direction traverse to the longitudinal axis, wherein the blade has an upper surface being formed convex in a direction traverse to the longitudinal axis and which is, in the mated condition of the connection arrangement, in contact with the concave inner surfaces of the upper lamellae.
  • upper, lower, “height” and “width” refer to a Cartesian coordinate system with a mating direction, a height direction and a width direction being perpendicular to each other.
  • the mating direction is parallel to the longitudinal axis and the height direction is the direction from the lower lamellae to the upper lamellae.
  • the cross-section of the receiving space perpendicular to the longitudinal axis L extends in the height direction and the width direction.
  • the receiving space extends along the longitudinal axis so that the male terminal can be inserted in the mating direction, which is parallel to the longitudinal axis, into the receiving space.
  • the upper lamellae and the lower lamellae are orientated traverse to the mating direction and the longitudinal axis.
  • the inner surfaces of the lower lamellae are straight and arranged in one common plane.
  • the inner surfaces of the lower lamellae can be formed concave in a direction traverse to the longitudinal axis.
  • the blade of the male terminal has a curved cross-section in a plane perpendicular to the longitudinal axis.
  • the blade can be made from a sheet metal material and be forged to achieve the curved cross-section.
  • the male terminal may have a front end facing the female terminal wherein at the front end the male terminal has a lead-in zone with a slanted upper surface portion.
  • the slanted upper surface portion is inclined relative to the longitudinal axis so that it facilitates the insertion of the blade of the male terminal into the receiving space of the female terminal.
  • the inner surfaces of the upper lamellae can be formed convex in direction of the longitudinal axis.
  • the upper lamellae can have a curved longitudinal cross-section being convex towards the receiving space. This provides for a line contact between the upper lamellae and the blade, which has a small extension in a direction of the longitudinal axis, increasing the contact pressure.
  • the male terminal has a stop face being in contact with a stop face of the female terminal in the mated condition. By this, it is avoided to push the male terminal too far into the receiving space.
  • the female terminal may have guiding surfaces guiding the blade of the male terminal while being inserted into the receiving space.
  • the female terminal may have, for example, guiding tabs, which have the guiding surfaces facing each other, and which project into the receiving space.
  • the male terminal and the female terminal each have a connection portion for connecting conductors of electric cables to the connection portions.
  • the connection between the contact portions and the conductors may be established by any process well known in the art, such as welding, soldering, crimping, etc.
  • the female terminal 1 can best be seen in Figures 2 to 5 , which are described together hereinafter.
  • the female terminal 1 has a receiving space 3 extending in direction of a longitudinal axis L of the connection arrangement.
  • the male terminal 2 can be inserted into the receiving space 3 in a mating direction M parallel to the longitudinal axis L and towards the female terminal 1.
  • the receiving space 3 is delimited by upper lamellae 4 and lower lamellae 5.
  • the upper lamellae 4 each have an inner surface 6 facing the receiving space 3.
  • the lower lamellae 5 each have an inner surface 7 facing the receiving space 3.
  • the upper lamellae 4 and the lower lamellae 5 extent traverse to the longitudinal axis L.
  • the inner surfaces 6 of the upper lamellae 4 are concave in a direction traverse to the longitudinal axis L.
  • the inner surfaces 7 of the lower lamellae 5 are straight and arranged in one common plane E.
  • the inner surfaces 7 of the lower lamellae 5 may be concave in a direction traverse to the longitudinal axis L.
  • the upper lamellae 4 and the lower lamellae 5 are cut out of a piece of sheet metal extending in the plane E. According to the disclosed example six parallel slots 17 are cut into the sheet metal forming the upper lamellae 4 and the lower lamellae 5 alternately in mating direction M.
  • the upper lamellae 4 are then bent and formed into a curved shape so that the upper lamellae 4 project from the plane E in a height direction. Accordingly, the entire upper lamellae 4 are formed concave towards the receiving space 3 and convex in the opposite orientation away from the receiving space 3, all in a plane traverse to the longitudinal axis L.
  • the upper lamellae 4 and the lower lamellae 5 are integrally connected to lateral portions 35, 36 of the female terminal 1.
  • the lateral portions 35, 36 and the lower lamellae 5 are arranged in the common plane E.
  • the mentioned directions refer to a mating direction M, a height direction H and a width direction W of a Cartesian coordinate system.
  • the male terminal 2 can best be seen in Figures 7 to 9 , which are described together hereinafter.
  • the male terminal 2 has a blade 8 that can be inserted into the receiving space 3 of the female terminal 1 as disclosed in Figure 1 .
  • the blade 8 is inserted into the receiving space 3 in the mating direction M that is parallel to the longitudinal axis L.
  • the blade 8 has an upper surface 9 that is formed convex traverse to the longitudinal axis L, and that is, in the fully mated condition of the connection arrangement as shown in Figure 1 , in contact with the inner surfaces 6 of the upper lamellae 4, thereby establishing a line contact between the upper surface 9 of the blade 8 and the inner surfaces 6 of the upper lamellae 4.
  • the blade 8 will touch the upper lamellae 4 at a large number of contact points with at least a tendency towards a line contact.
  • the upper lamellae 4 can be formed as shown in Figures 4 and 6 with inner surfaces 6 being convex in the direction of the longitudinal axis L.
  • the width of the line of the line contact in the mating direction M is decreased resulting in a higher contact pressure.
  • even the entire upper lamellae 4 are curved.
  • the surfaces of the upper lamellae 4 opposite the inner surfaces 6 of the upper lamellae 4 may be straight in the mating direction M.
  • the blade 8 is made from a sheet metal material and is formed to have a curved cross-section.
  • the blade 8 is convex towards the upper lamellae 4 and concave towards the lower lamellae 5 viewed in a plane defined by the height direction H and the width direction W.
  • the blade 8 has two lower surfaces 13, 14 space from each other, which are in contact to the inner surfaces 7 of the lower lamellae 5. The blade 8 is clamped between the upper lamellae 4 and the lower lamellae 5.
  • the blade 8 is spoon shaped so that it has a curved cross-section in a plane perpendicular to the longitudinal axis L as well as a curved cross-section in a plane perpendicular to the width direction W.
  • This facilitates a simple manufacturing of the blade 8 wherein the male terminal 2 is also provided with the lead-in zone having a slanted upper surface portion 16 at a front end 15 of the male terminal 2 in a single manufacturing step, e.g. by forming.
  • the lead-in zone makes it easier to insert the blade 8 into the receiving space 3 at the beginning of the mating procedure.
  • Figure 10 shows a cross-sectional view perpendicular to the longitudinal axis L of the connection arrangement.
  • the blade 8 of the male terminal 2 to and the female terminal 1 are shown in a non-deformed state.
  • the central surface region 10 is that region of the upper surface 9 of the blade 8 which overlaps with the upper lamellae 4.
  • the peripheral surface regions 11, 12 are that regions of the upper surface 9 of the blade which do not overlap with the upper lamellae 4. Alternatively, the entire upper surface 9 can overlap with the upper lamellae 4 without peripheral regions.
  • the upper lamellae 4 and the lower lamellae 5 are elastically deformed such that their shape, and hence the cross-section of the receiving space 3, adjusts to the shape of the blade 8 of the male terminal 2 thus compensating an overlap in the height direction H.
  • the upper lamellae 4 may be stretched and bent as described hereinafter.
  • the blade 8 may be compressed in the height direction H.
  • Figure 10 in order to explain why the upper lamellae 4 and the blade 8 are elastically deformed these are shown in Figure 10 in a non-deformed state.
  • the blade 8 contacts the inner surfaces 7 of the lower lamellae 5.
  • the blade 8 has a first height H1 in height direction H that is greater than a second height H2 of the receiving space 3 in height direction H, thereby creating an overlap O between the blade 8 and the upper lamellae 4.
  • the overlap O results in a force against the upper lamellae 4 onto the inner surfaces 6 thereof as well as forces from the blade 8 onto the inner surfaces 7 of the lower lamellae 5, as indicated by arrows shown in Figure 5 .
  • the upper lamellae 4 are elastically deformed, for instance stretched in a direction of their extension and slightly bent in a direction travers the stretching direction.
  • the male terminal 2 is provided with tabs 17, 18 projecting in opposite lateral direction transverse to the longitudinal axis L.
  • Each tab 17, 18 has a stop face 19, 20 orientated in direction towards the front end 15 of the male terminal 2 and towards the female terminal 1.
  • the female terminal 1 has two tabs 21, 22 each of which has a stop face 37, 38 serve as stop limits.
  • each stop face 19, 20 of the male terminal 1 abuts one of the stop faces 37, 38 of the female terminal 1 in order to avoid that the male terminal 2 is inserted too far into the receiving space 3 of the female terminal 1.
  • the distance between the tabs 21, 22 of the female terminal 1 is greater than the width of the blade 8 of the male terminal 2 over a large part of the longitudinal extension of the blade 8 starting from its front end 15.
  • the width of the blade 8 continuously increases towards the tabs 18, 19.
  • the width of the blade 8 is approximately identical or only slightly smaller than the distance between the two tabs 21, 22 at the front end 33 of the female terminal 1.
  • the tabs 21, 22 at the front end 33 of the female terminal 1 facilitate the insertion of the male terminal 2 into the receiving space 3 by laterally guiding the blade 8. Further, at the front end 33 the female terminal 1 has a guiding flap 34, which projects in a direction of the longitudinal axis L opposite the mating direction M. The guiding flap 34 is bent out of the plane E in an opposite direction than the tabs 21, 22. It further facilitates the insertion of the blade 8 of the male terminal 2 into the receiving space 3.
  • the female terminal 1 is further provided with two guiding tabs 23, 24 that each have a guiding surface 25, 26 facing each other.
  • the distance between the two guiding tabs 23, 24 is equal or just slightly bigger than the width of the blade 8 over a large part of the longitudinal extension between the front end 15 of the blade 8 and the region of the blade 8, which has an increasing width.
  • the tabs 21, 22 and the guiding tabs 23, 24 are cut out of the sheet-metal material of the female terminal 1 so that they are parallel to the height direction H and project, viewed in the longitudinal axis L, into the receiving space 3.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
EP19193311.8A 2019-08-23 2019-08-23 Elektrische verbinderanordnung Pending EP3783744A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19193311.8A EP3783744A1 (de) 2019-08-23 2019-08-23 Elektrische verbinderanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19193311.8A EP3783744A1 (de) 2019-08-23 2019-08-23 Elektrische verbinderanordnung

Publications (1)

Publication Number Publication Date
EP3783744A1 true EP3783744A1 (de) 2021-02-24

Family

ID=67742229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19193311.8A Pending EP3783744A1 (de) 2019-08-23 2019-08-23 Elektrische verbinderanordnung

Country Status (1)

Country Link
EP (1) EP3783744A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107966A (en) 1958-02-28 1963-10-22 Curtiss Wright Corp Electrical connector socket
US20050118891A1 (en) 2003-11-28 2005-06-02 J. S. T. Mfg. Co., Ltd. Female terminal for heavy current and female terminal for heavy current with shell
EP1401056B1 (de) * 2002-09-19 2006-05-10 Neutrik Aktiengesellschaft Steckeraufnahmeteil einer elektrischen Steckverbindung
US20080293287A1 (en) * 2007-04-03 2008-11-27 Lear Corporation Electrical terminal assembly and method of using the electrical terminal assembly
US9793620B2 (en) * 2015-08-31 2017-10-17 Te Connectivity Germany Gmbh Connector assembly with a blade connector
EP3051635B1 (de) * 2015-01-30 2018-01-17 TE Connectivity Germany GmbH Elektrische Kontaktmittel und elektrische Kabelanordnung für die Automobilindustrie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107966A (en) 1958-02-28 1963-10-22 Curtiss Wright Corp Electrical connector socket
EP1401056B1 (de) * 2002-09-19 2006-05-10 Neutrik Aktiengesellschaft Steckeraufnahmeteil einer elektrischen Steckverbindung
US20050118891A1 (en) 2003-11-28 2005-06-02 J. S. T. Mfg. Co., Ltd. Female terminal for heavy current and female terminal for heavy current with shell
US20080293287A1 (en) * 2007-04-03 2008-11-27 Lear Corporation Electrical terminal assembly and method of using the electrical terminal assembly
EP3051635B1 (de) * 2015-01-30 2018-01-17 TE Connectivity Germany GmbH Elektrische Kontaktmittel und elektrische Kabelanordnung für die Automobilindustrie
US9793620B2 (en) * 2015-08-31 2017-10-17 Te Connectivity Germany Gmbh Connector assembly with a blade connector

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Owner name: YAZAKI EUROPE LTD.