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Electrical plug connector with double casing

  • US 9,490,573 B2
  • Filed: 03/06/2015
  • Issued: 11/08/2016
  • Est. Priority Date: 03/07/2014
  • Status: Active Grant
First Claim
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1. A plug connector suitable for connecting with a socket connector mainly configuring a first internal screw thread comprising:

  • an internal casing (110), said internal casing includes an inside space, a first end and a second end opposite to said first end;

    a set of terminals (120), said set of terminals is located in said inside space;

    a conductive sleeve tube (130), said sleeve tube is fixed on the second end and includes an external hook that extends toward said first end; and

    a conductive external casing (140), said external casing, which is movably sleeved on said internal casing, comprises;

    a third end and a fourth end that opposite to said third end, a first external screw thread located in said third end, and an internal hook located in said fourth end, and a concaved slot located neighboring to said internal hook, said concaved slot is concaved on the inner surface of the external casing facing the outer surface of said internal casing, wherein said internal hook (146) is on the walls of said concaved slot, and said external hook is movably received by said concaved slot;

    when said first internal screw thread of said socket connector is screwed into said first external screw thread of said plug connector, said external casing is pulled towards said socket connector such that said internal hook of said external casing contacts with said external hook (132) of said sleeve tube;

    wherein said plug connector further includes a transmission cable comprises;

    a plurality of first conducting wires covered by the isolating layer, and at least one second conducting wire which is exposed to the isolating layer wherein said first conducting wires pass through said sleeve tube and connects to said set of terminals, and the second conducting wire is contacted said sleeve tube;

    wherein said plug connector further includes a flexible ring that is disposed between said sleeve tube and said transmission cable; and

    wherein said second conducting wire (156) which is extended from said sleeve tube and then is folded to insert into a gap (157) between the flexible ring (160) and said sleeve tube.

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