Wiring apparatus of electrical connector

A wiring apparatus of an electrical connector includes a pressing cover to be mounted on a plurality of piercing terminals of the electrical connector. The pressing cover is formed with a plurality of concave portions for guiding and separating the communication wires into specific positions when the pressing cover being fastened to the piercing terminals for fixing the wires. That is, the second pair and the fourth pair are allocated at both sides. The first pair and the third pair are in the middle. A guiding means is further used to tightly collect and fix the wires of first pair together, and to separate the wires of third pair to both sides of the first pair. Therefore, the pairs of wires are well allocated into specific positions to achieve a stable data transmission.

BACKGROUND OF THE INVENTION
 1. Field of Invention
 The present invention generally relates to a wiring apparatus of an
 electrical connector applicable to transmit electrical signals, and more
 particularly relates to a wiring apparatus of an electrical connector,
 which can separate the communication wires for a stable signal
 transmission.
 2. Related Art
 Information transmissions through network communication are recently more
 and more popular. The applications are getting wider. As a demand, the
 high speed and high efficiency transmissions require high quality cabling
 and connectors. Generally, the network communication paths are composed of
 transmission media and electrical connectors. On the transmission media,
 there are twisted pair cables, coaxial cables, and optical fibers. There
 are a certain defects occurred in the communication paths which will get
 worsen as the frequency of signals getting higher.
 Taking unshielded twisted pair (UPT) cabling for example, the cable
 includes two isolated copper wires twisted with a certain pitch and a
 certain manner. A pair or two pairs of twisted cables constitute a
 communication chain as a simplest transmission medium. The twisted pairs
 are commonly used in computer communication networks. But, cross talk is
 induced due to capacitive and inductive couplings between adjacent
 conductors. Especially when the frequency of the signal increases, the
 magnitude of the cross talk is logarithmically increased, and the
 impedance also increases, which badly attenuate the high frequency signal.
 There have been prior arts to solve the problem of decreased performance in
 transmitting higher frequency signals. For example, in U.S. Pat. No.
 4,648, 678, the adjacent terminals for a connector are settled on two
 different planes. A further improvement of connector disclosed by U.S.
 Pat. No. 5,674,093 is to differentiate the bending angles of adjacent
 terminal legs, so that the adjacent terminal legs are not parallel to each
 other, and, the electrical signal transmission characteristics of said
 connector is enhanced.
 Though the prior arts intended to solve the aforesaid problem, they are
 rare to talk about the wiring method for the communication wires.
 Actually, when the communication wires are inappropriately installed, the
 transmission performance will obviously decreased and cause problem.
 SUMMARY OF THE INVENTION
 The present invention is therefore to provide a wiring apparatus of an
 electrical connector, which is applicable to transmit electrical signals.
 The wiring apparatus can separate the communication wires locating on the
 piercing terminals according to their pair distinction and achieve a
 stable signal or data transmission.
 To achieve the aforesaid objects, a wiring apparatus of an electrical
 connector according to the present invention includes a pressing cover to
 be mounted on a plurality of piercing terminals of the electrical
 connector. The pressing cover is formed with a plurality of concave
 portions for guiding and separating the communication wires into specific
 positions when the pressing cover is fastened to the piercing terminals
 for fixing the wires. That is, the second pair and the fourth pair are
 allocated at both sides. The first pair and the third pair are allocated
 in the middle. A guiding means is further used to tightly collect and fix
 the first pair of wires together, and to separate the third pair of wires
 to both sides of the first pair. Therefore, the pairs of wires are well
 allocated into specific positions to achieve a stable signal or data
 transmission.
 Further scope of applicability of the present invention will become
 apparent from the detailed description given hereinafter. However, it
 should be understood that the detailed description and specific examples,
 while indicating preferred embodiments of the invention, are given by way
 of illustration only, since various changes and modifications within the
 spirit and scope of the invention will become apparent to those skilled in
 the art from this detailed description.

DETAILED DESCRIPTION OF THE INVENTION
 As shown in FIG. 1, a wiring apparatus of an electrical connector according
 to the present invention includes a connector body 10, which is formed
 with a network terminal socket 11 at one end, and a plurality of piercing
 terminals 121.about.128 at the other end. The terminal socket 11 is for
 connecting a network plug, while the piercing terminals 121.about.128 are
 for connecting communication wires 31.about.38 (as shown in FIGS. 2A, 2B)
 for signal or data transmission. A pressing cover 20 is used to fix the
 communication wires 31.about.38 into the piercing terminals 121.about.128.
 Taking a cable of EIA/TIA T568B for example, the communication wires 34, 35
 are the first pair; the wires 31, 32 are the second pair; the wires 33, 36
 are the third pair; and the wires 37, 38 are the fourth pair.
 Correspondingly, the piercing terminals 124, 125 are the first pair
 terminals; the piercing terminals 121, 122 are the second pair terminals;
 the piercing terminals 123, 126 are the third pair terminals; and the
 piercing terminals 127, 128 are the fourth pair terminals. The first pair
 of wires 34, 35 are allocated in the first pair terminals 124, 125; the
 second pair of wires 31, 32 are allocated in the second pair terminals
 121, 122; the third pair of wires 33, 36 are allocated in the third pair
 terminals 123, 126; and the fourth pair of wires 37, 38 are allocated in
 the fourth pair terminals 127, 128.
 The pressing cover 20 is formed with three concave portions 21, 23, 25 for
 guiding and separating the communication wires into specific positions
 when the pressing cover 20 being fastened to the piercing terminals
 121.about.128 for fixing the wires 31.about.38. That is, the second pair
 of wires 31, 32 and the fourth pair of wires 37, 38 are allocated in the
 outer concave portions 21, 25 on both sides. The first pair of wires 34,
 35 and the third pair of wires 33, 36 are allocated in the middle concave
 portion 23. A guiding means is further used to tightly collect and fix the
 first pair of wires 34, 35 together, and separate the third pair of wires
 33, 36 to both sides of the first pair 34, 35.
 As shown in FIG. 1, in a first embodiment of the present invention, the
 guiding means are two extrusions 13 formed on the piercing terminals of
 the connector body 10 at both sides of the first pair of wires 34, 35; and
 a pressing portion 26 formed on the pressing cover 20. By functions of the
 two extrusions 13 and the pressing portion 26, the first pair of wires 34,
 35 are collected tightly in the gap between the extrusions 13; and the
 third pair of wires 33, 36 are separated by the pressing portion 26 to
 both sides of the pressing portion 26.
 In assembly of the wires 31.about.38, as shown in FIG. 2A, the first pair
 of wires 34, 35 are first pressed into the piercing terminals 124, 125,
 and allocated between the two extrusions 13. Then, the rest wires 31, 32,
 33, 36, 37, 38 are allocated into the piercing terminals 121, 122, 123,
 126, 127 and 128 respectively, as shown in FIG. 2B.
 Then, the pressing cover 20 is mounted on the piercing terminals
 121.about.128 to separate the wires 31.about.38 into specific positions,
 as shown in FIG. 3. The second pair of wires 31, 32 and the fourth pair of
 wires 37, 38 are allocated in the outer concave portions 21, 25 on both
 sides. The first pair of wires 34, 35 are tightly collected by the
 extrusions 13 into the gap between the extrusions 13. The third pair of
 wires 33, 36 are separated by the pressing portion 26 to both sides of the
 pressing portion 26. Therefore, the communication wires 31.about.38 are
 separately allocated according to their pair distinction, which will
 achieve a stable data transmission.
 FIG. 4 shows a second embodiment of the present invention in which the
 guiding means include an extrusion 14 formed on the piercing terminals of
 the connector body 10 at the first pair of wires 34, 35; and a pressing
 portion 26 formed on the pressing cover 20. Two grooves 141 are formed on
 the extrusion 14 for holding the first pair of wires 34, 35 in place. By
 functions of the extrusion 14 and the pressing portion 26, the first pair
 of wires 34, 35 are near allocated in the grooves 141; and the third pair
 of wires 33, 36 are separated by the pressing portion 26 to both sides of
 the pressing portion 26.
 As shown in FIG. 5, by using the second embodiment of the present
 invention, the wires 31.about.38 can also be separately allocated
 according to their pair distinction, and achieve a stable data
 transmission.
 As described above, the wiring apparatus of electrical connector according
 to the present utilizes a pressing cover mounted on the piercing terminals
 to separate the communication wires according to their pair distinction,
 which will improve the transmission performance by a simple construction.
 The invention being thus described, it will be obvious that the same may be
 varied in many ways. Such variations are not to be regarded as a departure
 from the spirit and scope of the invention, and all such modifications as
 would be obvious to one skilled in the art are intended to be included
 within the scope of the following claims.