EP0343550B1 - Elektrische Flachsteckbuchse - Google Patents

Elektrische Flachsteckbuchse Download PDF

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Publication number
EP0343550B1
EP0343550B1 EP89109140A EP89109140A EP0343550B1 EP 0343550 B1 EP0343550 B1 EP 0343550B1 EP 89109140 A EP89109140 A EP 89109140A EP 89109140 A EP89109140 A EP 89109140A EP 0343550 B1 EP0343550 B1 EP 0343550B1
Authority
EP
European Patent Office
Prior art keywords
flat plug
rectangular
plug socket
protective sleeve
cage
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.)
Expired - Lifetime
Application number
EP89109140A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0343550A3 (en
EP0343550A2 (de
Inventor
Hartmut Buddrus
Klaus Enneper
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.)
Delphi Automotive Systems Deutschland GmbH
Original Assignee
Kabelwerke Reinshagen GmbH
Delphi Automotive Systems Deutschland 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 Kabelwerke Reinshagen GmbH, Delphi Automotive Systems Deutschland GmbH filed Critical Kabelwerke Reinshagen GmbH
Publication of EP0343550A2 publication Critical patent/EP0343550A2/de
Publication of EP0343550A3 publication Critical patent/EP0343550A3/de
Application granted granted Critical
Publication of EP0343550B1 publication Critical patent/EP0343550B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case

Definitions

  • the invention is directed to an electrical flat socket provided for a flat plug connection of the type specified in the preamble of claim 1.
  • socket member is designed as a full rectangular tube, but this has no cage structure, but on the broad sides molded, mutually curved spring pair arms, on which a pair of reinforcement springs presses is formed in a corresponding manner on a reinforcing sleeve to be pushed over the socket member.
  • EP-A-0089747 shows a square socket which shows some partial features of the invention, but not a flat socket or a protective sleeve.
  • the invention has for its object to develop a space-saving flat connector due to the knife contact member of the type mentioned in the preamble of claim 1, which has good contact on the one hand and on the other hand manages with low insertion forces during the coupling process.
  • the invention has made it possible to reconcile the two apparently contradicting demands for good contact and low insertion forces and is characterized by the following special features.
  • the socket member is equipped as a rectangular tube with webs created by longitudinal slots on all tube sides, contact webs also come to rest on the rectangular narrow sides, which come into contact with the knife edges of the male part in the event of a coupling.
  • the socket member is thus designed on all sides as a cage, the cage webs of which have single or multiple kinks or arches and thus run in a V or W shape.
  • the kink or arch apex produced in this way springs on all sides against the clutch contact element coupled into the interior of the cage and is effective in contact. This gives contact points distributed over the entire profile circumference, which summatively produce a large contact area.
  • Each kinked or bent contact web is under its own spring load due to its V- or W-shape, which is sufficient for good contacting by the web, but because of the very slim long web shape for its deformation requires surprisingly low attachment forces during the coupling process.
  • the course of the kink or curve levels out in the contact web and contacts with its apex. Coupling is thus easy and you get a good electrical transition even for higher electrical currents.
  • a single kink in each contact web, which establishes a V-shaped web course, is particularly advantageous.
  • the contact webs on the narrow sides of the cage are designed symmetrically because they are then deformed in time between the aforementioned asymmetrical kinks or bends of the other contact webs when coupling.
  • the simplest version of the flat receptacle can be made in one piece, but with a protective sleeve.
  • the socket member only from this rectangular tube cage and to use this as an insert in a box-shaped quiver, which, as a further component of the flat receptacle, forms a base member on which the The conductors are connected.
  • the protective sleeve can finally be encased in the sleeve which is used to hold an insulation housing with retaining tongues.
  • This sheet metal material is, according to claim 5, angled and folded until it creates the cage, quiver or protective sleeve designed as a rectangular tube with a longitudinal joint.
  • These longitudinal joints will be placed, mainly between the quiver and the protective sleeve, on mutually different sides of the rectangular tube, the narrow side being particularly suitable for the protective sleeve, according to claim 6, because the holding hooks for the insulation housing can be positioned more favorably on the broad side .
  • welds can be used, preferably by the action of a laser be generated.
  • the location of these welds is recommended, according to claim 10, the longitudinal joint, because there is no annoying projection.
  • Such welds can finally, according to claim 11, create a closed ring profile in the rectangular tube, which improves its shape, which is particularly interesting for the protective sleeve.
  • An insertion funnel provided at the front end of the rectangular tube cage can also serve to mutually secure the assembly position, said insertion funnel being effective with the quiver of the base member.
  • the strength could finally, according to claim 12, also be increased without welding if the longitudinal joint of the sheet material folded into a rectangular tube was allowed to jump like a labyrinth between two adjacent sides of the rectangle, thus creating alternately interdigitated fingers in the tube wall that extend over the edge of the rectangle.
  • the metallically conductive core of a flat plug socket 10 of a flat plug connection is shown, to which an insulation housing (not shown in more detail) still belongs.
  • the contact member comprises an extremely flat knife blade 21 with a full rectangular cross-section, which is why this member will be referred to as "knife contact member 20" for short.
  • the knife blade 21 also comprises a one-piece, conventional connection area 22 for the conductor (not shown in more detail), which in the present case includes conductor wire claws 23 and conductor insulation claws 24.
  • the knife blade 21 is characterized by upper and lower blade surfaces 25, which are connected on both sides by extremely flat surface zones, which will be referred to as "knife edge 26" for short.
  • the tip 27 of the knife blade 21 is sharpened for a good introduction.
  • the entire knife contact member is designed as a shaped sheet metal body, the knife blade 21 of which is produced by folding the sheet metal into a compressed double position.
  • the conductive member 10 of the flat receptacle shown in its assembled state in FIG. 1 comprises three components, the appearance of which results from the diagram of FIG. 2, the structure of which is detailed in FIGS. 4 to 8 of the first component, 9 to 12 of the second component and 13 to 16 of the third component are shown.
  • the innermost component of this flat receptacle 10 consists of a socket designed as a rectangular tube 11 for receiving the aforementioned knife blade 21 of the flat plug 20.
  • the sheet material 12 is cut through in a flat blank resulting from FIG. 8 with punched-out longitudinal slots 13 7, which has two broad sides 14 on the long rectangular webs and its two narrow sides 15 on the short rectangular webs.
  • the longitudinal slots 13 extend over a substantial length of the rectangular tube and between them a family of longitudinal parallel webs 16 are formed, each having a V-shaped longitudinal profile through a transverse kink 17 and 17 'and thereby with their V-bend inside 18 Rectangular tube 11 are directed.
  • a single contact web is pressed in the coupling case in a contact-effective manner with the area of a V-fold apex 17 ⁇ .
  • the individual contact webs 16 are deformed one after the other during the coupling process; which is why there is only a small push-on force each time.
  • the webs 16 also have such a long web length and such a small web width and such a flat kink that only a relatively small deformation force is required in any case for their deformation.
  • the longitudinal joint 31 which arises in the case of the described bending of the sheet material 12 in the rectangular tube 11 is located, as shown in FIGS. 2 and 7, on one broad side 14 of the rectangular profile.
  • the position of the fold lines 30 in the sheet metal material 12 is indicated by dash-dotted lines in FIG. 8.
  • a funnel-shaped flange 32 which is interrupted for easier bending in the area of the folding lines 30 due to cutouts 33 in the sheet metal material 12 and during subsequent assembly serves as a stop for the next component 40 of the flat receptacle 10.
  • a locking opening 34 in one broad profile side 14 also serves to secure the mounting position.
  • This next component consists of a two-part base member 40, which, as shown in FIGS. 2 and 9 to 12, forms in one piece from its sheet material 42 a box-shaped quiver 41 at one end and a usual connection area 43 for the conductor with corresponding claws.
  • the box-shaped quiver 41 consists of a rectangular profile 44 which results from FIG. 10 and which is designed to closely match the dimensions of the cage 19, which in this case forms an insert to be positioned in the quiver interior 48 in the case of assembly.
  • the cage 19 is inserted from the free end 45 into the base member 40 until the aforementioned funnel flange 32 finally strikes there.
  • the closed broad side of the quiver 41 is provided with a latching projection 35 which, in the case of assembly, cooperates with the already mentioned grid opening 34 of the cage 19, while on the opposite broad side, interrupted by a longitudinal joint 49 during box formation, a bead 46 is formed, which is for the Engagement relationship of the aforementioned locking halves 34, 35 provides.
  • the locking connection is thereby secured. Contrary to the orientation of FIG. 2, one could ensure that the longitudinal joints 31, 49 on both sides come to lie on opposite sides of the respective rectangular profile.
  • the mutual mounting position of the two parts 19, 40 can additionally or additionally also be brought about by welded connections, which are expediently carried out in the region of the longitudinal joint 49 or 31. Welds, mainly if they extend over a larger joint length, then create an annular closed rectangular profile, which contributes to the stiffening.
  • the quiver 41 is finally on its outer broad sides with protruding catch hook 47.38. provided, which serve to position and secure the position of a third component 50 of the flat receptacle 10 according to the invention, the appearance of which is described in more detail in FIGS. 13 to 16.
  • This third component consists of a protective sleeve 50, which has the rectangular profile 51 shown in FIG. 15 and is made of a specific material with high strength, such as steel sheet 52, which in the first phase of its shaping is the stamped sheet metal shown in FIG. 16.
  • a protective sleeve 50 which has the rectangular profile 51 shown in FIG. 15 and is made of a specific material with high strength, such as steel sheet 52, which in the first phase of its shaping is the stamped sheet metal shown in FIG. 16.
  • This is related to the other sheet web, which is moved from station to station in strip form, of course, via a projection 36 indicated in FIG.
  • the sheet material 12 in the rectangular tube quiver 19 is of a different type and consists of a material with a high spring constant, which satisfies the elastic properties of the contact webs 16.
  • the sheet metal sheet 42 of the base part 40 on the other hand, consists of a material with particularly good conductivity, which is why a high copper content in the sheet metal alloy is desirable here.
  • the steel sheet 52 is already provided in the die-cut part of FIG. 6 with two windows 53, in which, in the later shaping, outwardly bent retaining tongues 57 are cut, which are used for the later assembly of the insulation housing of the flat plug socket 10 mentioned at the beginning.
  • the rectangular profile 51 is again created by folding the steel sheet 52 on parallel lines that determine the profile corners, the analog longitudinal joint 59 that arises here being located on one profile narrow side 55, while the aforementioned windows 53 with the retaining tongues 57 on both profile broad sides 54 are positioned.
  • the protective sleeve 50 has a profile size 51 which can encase the box-shaped case 41 of the base member 40 in a close fit.
  • the aforementioned latching hooks 47 and 38 serve to mutually secure the position of these two components.
  • the inner latching hook 47 serves as an end stop for the inner end face 58 of the protective sleeve 50.
  • the outer latching hooks 38 move into the window 53 located on the broad sides 54 mentioned and engage behind the inner window edge 56 shown in FIG. 13.
  • the length of the protective sleeve 50 is selected to match the quiver 41; in particular, after the position secured by the latching hooks 38, 47, the above-mentioned front end 45 lies with the funnel flange 32 of the cage 19 inserted there flush with the outer end 39 of the protective sleeve.
  • the mutual position between the protective sleeve 50 and the base member 40 can alternatively or additionally be determined by welding, in particular laser welding. Welded connections are expediently carried out again in the longitudinal joint 59 of the rectangular profile 51 and can also serve to create a rectangular profile 51 which is closed in a ring-shaped manner.
  • FIG. 3 Another specialty of FIG. 3 is finally that, at least in the protective sleeve 50 ⁇ , the resulting joint 59 ⁇ runs like a labyrinth and extends over both the broad profile side 54 and the narrow profile side 55.
  • This crenellated labyrinth course creates upper and lower fingers 61, 62, which engage in one another and extend from one profile side 54 to the other 55 or vice versa.
  • the design of the flat receptacle shown in FIG. 1 has, in principle, as already mentioned, the same appearance as the components of a modification described in FIGS. 4 to 16. These differ only in the dimensioning of the profile widths; the rectangular profile shown in FIGS. 1 and 2 has a larger dimension Broadside 54 and therefore belongs to an analog flat connector of a different size, which of course also includes a knife contact member with a correspondingly widened blade surface 25. Accordingly, a larger number of contact webs 16 is also possible there, as has already been described. 4 to 6, the cage 19 can be provided on its broad side 14 provided with the longitudinal joint 31 with a projection 63, the top of which cooperates with the inner wall surface of the quiver 41 from the base member 40 when the assembly is necessary. In the exemplary embodiments of FIGS. 1 to 3, the longitudinal joints 31, 49 of the cage 19 and the quiver 41 are in alignment with one another, which is favorable for the welded connection mentioned, for example by laser welding.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP89109140A 1988-05-26 1989-05-20 Elektrische Flachsteckbuchse Expired - Lifetime EP0343550B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3817803 1988-05-26
DE3817803A DE3817803C3 (de) 1988-05-26 1988-05-26 Elektrische Flachsteckverbindung

Publications (3)

Publication Number Publication Date
EP0343550A2 EP0343550A2 (de) 1989-11-29
EP0343550A3 EP0343550A3 (en) 1990-11-28
EP0343550B1 true EP0343550B1 (de) 1995-04-19

Family

ID=6355114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109140A Expired - Lifetime EP0343550B1 (de) 1988-05-26 1989-05-20 Elektrische Flachsteckbuchse

Country Status (5)

Country Link
US (1) US4934965A (enrdf_load_stackoverflow)
EP (1) EP0343550B1 (enrdf_load_stackoverflow)
DE (2) DE3817803C3 (enrdf_load_stackoverflow)
ES (1) ES2072873T3 (enrdf_load_stackoverflow)
PT (1) PT90144B (enrdf_load_stackoverflow)

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Also Published As

Publication number Publication date
US4934965A (en) 1990-06-19
EP0343550A3 (en) 1990-11-28
ES2072873T3 (es) 1995-08-01
DE3817803A1 (de) 1989-11-30
EP0343550A2 (de) 1989-11-29
PT90144A (pt) 1989-11-30
DE3817803C3 (de) 1995-04-20
DE58909181D1 (de) 1995-05-24
DE3817803C2 (enrdf_load_stackoverflow) 1991-07-25
PT90144B (pt) 1994-05-31

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