USB connector having an inner circuit board for connecting cables and contacts

摘要

A cable connector compatible to USB 3.0 standard includes an insulative housing having, a number of contacts and an inner circuit board for establishing electrically connection between the contacts and cables. The contacts are divided into a first contact group including a number of first contacts and a second contact group including a number of second contacts. The inner circuit board includes a first soldering area having a number of separated first pads connected to the first and the second contacts. The first pads include a first grounding pad connected to a grounding contact of the second contacts. The second soldering area includes a number of separated second pads connected to the cables. At least two adjacent or separated second pads are electrically connected to the first grounding pad for improving high frequency characteristics.

主权项

1. A cable connector compatible to Micro Universal Serial Bus (USB) 3.0 standard, comprising:
an insulative housing comprising a first tongue and a second tongue narrower than the first tongue; a plurality of contacts retained in the insulative housing and divided into a first contact group fixed to the first tongue and a second contact group fixed to the second tongue, the first contact group comprising a plurality of first contacts each of which comprises a first contacting section extending beyond the first tongue, a first retaining section fixed in the insulative housing and a first soldering section extending from the first retaining section; the second contact group comprising a plurality of second contacts each of which comprises a second contacting section protruding upwardly beyond the second tongue, a second retaining section fixed in the insulative housing and a second soldering section extending from the second retaining section, the second contacts comprising a first pair of high-speed differential signal contacts, a second pair of high-speed differential signal contacts and a grounding contact disposed between the first pair and the second pair of high-speed differential signal contacts; an inner circuit board comprising a first soldering area and a second soldering area opposite to the first soldering area, the first soldering area comprising a plurality of separated first pads electrically and mechanically connected to the first soldering sections and the second soldering sections, the first pads comprising a first grounding pad connected to the second soldering section of the grounding contact; the second soldering area comprising a plurality of separated second pads for being connected to cables so as to establish electrical connections between the contacts and the cables; and a metallic shell enclosing the insulative housing; wherein at least two adjacent second pads are electrically connected to the first grounding pad.