CN112615169A

CN112615169A - Copper cable pre-termination connector

Info

Publication number: CN112615169A
Application number: CN202011481307.XA
Authority: CN
Inventors: 周展学; 孟繁盛
Original assignee: Beijing Lite Network Equipment Co ltd
Current assignee: Beijing Lite Network Equipment Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-06

Abstract

The invention discloses a pre-terminated connector for a copper cable, relates to the field of connection of a pre-terminated copper cable and industrial equipment of a network data center machine room, and comprises a plug, a shell, a lock sleeve, a circuit board and a clamping piece. The invention can solve the displacement problem of the termination node caused by material stress degradation in the use process of the existing data copper cable pre-termination connector after termination, increase the lateral pulling and torsion resistance of the copper cable pre-termination connector and the data copper cable, and optimize the insertion loss and return loss of signals through a channel and an incoming line path.

Description

Copper cable pre-termination connector

Technical Field

The invention relates to the field of connection of a pre-terminated copper cable and industrial equipment in a network data center machine room, in particular to a pre-terminated connector for a copper cable.

Background

In the field of data copper cable laying and industrial equipment connection of a network data center machine room, optical cables and data copper cable pre-termination technology is increasingly used, wherein the economy of the copper cable pre-termination is always that optical cables cannot be completely replaced. The existing connectors of the pretermination copper cable mainly use an RJ45 module and an RJ45 crystal head, when the connectors are laid and assembled, the pretermination copper cable of the module is directly assembled on a designated distribution frame, a bridge at the rear end of the distribution frame is stressed to fix the pretermination data copper cable, and the assembly of the pretermination copper cable of the RJ45 crystal head is generally directly plugged into an RJ45 module port or an RJ45 port of equipment.

Because the data copper cable is influenced by the material, when the RJ45 crystal head is plugged with the data port, the bending pressure of the cable is influenced, the displacement condition of the termination node of the data copper cable and the connector can occur along with the change of time or environmental factors, so that the echo and attenuation of network transmission are increased, the network center has problems and the loss of users caused by faults can be caused greatly in the environment of high-requirement transmission applied to a network data center machine room, the faults can occur mainly because the RJ45 crystal head is pre-terminated or the standard of common copper cable jumper is continuously used, when the port is plugged, the bending pressure of the cable is completely born by the termination node of the RJ45 crystal head and the PVC sheath of the crystal head, when the material is fatigued, the stress is reduced, and the data transmission performance of the connection between the network data center and industrial equipment is naturally influenced and reduced, especially, in the process of connecting and using the industrial equipment, because the industrial equipment has automatic uninterrupted activity and is connected in series, the requirement on the physical connection stability of the data copper cable connector is higher, the situation that the terminating node is displaced may occur, the information interaction between the industrial equipment is influenced, and even the industrial equipment is down.

In addition, the RJ45 crystal head technology has no higher breakthrough on the indexes of echo and attenuation, because of the relationship of the RJ45 crystal head wire clamping structure, the twisted pair of the data copper cable must be made straight before the data copper cable is clamped, this step will lose a section of the best transmission environment in the signal transmission process, resulting in the attenuation of the echo and insertion loss of the signal, and the problem is mainly limited by that the structure of the RJ45 crystal head itself has no further optimization space.

Disclosure of Invention

The invention provides a copper cable pre-terminating connector, which solves the problems that a terminating node possibly generates displacement due to material stress degradation in the use process after the existing data copper cable pre-terminating connector is terminated, increases the lateral pulling resistance and torsion resistance of the copper cable pre-terminating connector and a data copper cable, and optimizes the insertion loss and return loss of signals through a channel and an incoming line path.

The technical scheme adopted by the invention is as follows:

a copper cable pre-termination connector comprising:

the plug comprises an elastic sheet, pin bayonets, a clamping piece fixing part and a transverse connecting shaft, wherein the elastic sheet is positioned on the upper side surface, the pin bayonets are positioned at the head end, the clamping piece fixing part is positioned at the tail end, and the transverse connecting shaft is positioned on the left side surface and the right side surface of the tail end;

the shell comprises two half shells, the left side and the right side of the head end parts of the two half shells are provided with transverse connecting holes, the tail end parts of the two half shells are provided with external threads, the inner side surfaces of the two half shells are provided with first protruding structures along the head and tail directions, and the two half shells form an inner cavity after being closed;

the lock sleeve comprises a copper cable through hole, and internal threads are arranged on the inner wall of the copper cable through hole;

the circuit board comprises a pin, a channel and a wiring terminal knife, wherein the channel is connected with the pin and the wiring terminal knife and is integrally formed;

the circuit board clamping groove, the fixing groove, the wire core fixing groove and the terminal cutter through groove are formed in the circuit board;

wherein, the two half shells are pivoted on a transverse connecting shaft of the plug through a transverse connecting hole; the lock sleeve is connected with the external thread of the closed shell through the internal thread in a threaded manner; the clamping piece is positioned in the inner cavity of the shell, the inlet of the spiral through hole faces to the tail end and is used for penetrating through the copper cable core, and the fixing groove is clamped on the clamping piece fixing part of the plug; the circuit board is embedded in the plug and the shell, the pins are positioned in the pin bayonets, the circuit board part positioned in the cavity of the shell is clamped in the circuit board clamping groove of the clamping piece to realize fixation, and the wiring terminal knife is positioned in the terminal knife through groove of the clamping piece; the shell is closed, and the first protruding structure of the shell is located in a wire core fixing groove of the clamping piece and used for pressing a wire core penetrating through a spiral through hole of the clamping piece on a wiring terminal knife of the circuit board, and the wire core is punctured through the wiring terminal knife to achieve electric connection.

Furthermore, the tail ends of the two half shells are provided with lock catch grooves, the head ends of the lock sleeves are provided with one-way buckles matched with the lock catch grooves, and the one-way buckles are clamped in the lock catch grooves after the lock sleeves are screwed on the shells.

Furthermore, the inner side surfaces of the middle parts of the two half shells are provided with second protruding structures which are pressed on the clamping piece when the clamping piece is closed, so that the clamping piece is fixed.

Furthermore, the inner side surfaces of the end parts of the two half shells are provided with third protruding structures which are pressed on the insulating skin of the copper cable penetrating through the lock sleeve when the lock is closed, so that the copper cable is fixed.

Further, the inlet end of the spiral through hole of the clamping piece is in a horn mouth shape, so that the wire core of the copper cable can penetrate conveniently.

Furthermore, a terminal knife reinforcing member is arranged at the position of the terminal knife of the circuit board and used for reinforcing the terminal knife.

Furthermore, a wire core separation structure is further arranged in the terminal cutter through groove of the clamping piece, is right opposite to the outlet end of the spiral through hole and is located on the inner side of the outlet end and used for separating a pair of wire cores which penetrate through the wire core separation structure.

Furthermore, an anti-skid structure is arranged on the outer side wall of the lock sleeve.

Furthermore, the spiral through holes of the clamping piece are four and are distributed according to a square array, and the spiral through holes are used for penetrating through four pairs of wire cores of the copper cable.

Furthermore, the stitch of the circuit board is eight pins, and is connected with four pairs of wire cores of the copper cable.

Drawings

FIG. 1 is a schematic diagram of a copper cable pre-terminated connector according to an embodiment of the present invention;

FIG. 2 is a side view of a copper cable pre-terminated connector profile according to an embodiment of the present invention;

FIG. 3 is an exploded view of a copper cable pre-termination connector according to an embodiment of the present invention;

FIG. 4 is an internal block diagram of a copper cable pre-termination connector according to an embodiment of the present invention;

FIG. 5 is a front view of a copper cable pre-terminated connector of an embodiment of the present invention;

FIG. 6 is a top view of an embodiment of a copper cable pretermination connector of the present invention;

FIG. 7 is a bottom view of an embodiment of a copper cable pretermination connector of the present invention;

FIG. 8 is a rear view of a copper cable pre-terminated connector of an embodiment of the present invention;

FIG. 9 is a diagram of a copper cable pre-terminated connector circuit board configuration according to an embodiment of the present invention;

FIG. 10 is a diagram of a fastener for a pre-terminated connector of a copper cable according to an embodiment of the present invention;

FIG. 11 is a bottom view of a retainer for a pre-terminated connector of a copper cable in accordance with an embodiment of the present invention;

FIG. 12 is a top view of a retainer for a pre-terminated connector of a copper cable in accordance with an embodiment of the present invention;

fig. 13 is a perspective view of a copper cable pretermination connector sleeve of an embodiment of the present invention.

Description of reference numerals:

10-plug, 11-spring plate, 12-fixing part of clamping piece, 13-eight-pin bayonet, 14-transverse connecting shaft, 20-shell, 21-transverse connecting hole, 22-external thread, 23-locking groove, 24-first bulge structure, 25-second bulge structure, 26-third bulge structure, 30-lock sleeve, 31-copper cable through hole, 32-internal thread, 33-one-way buckle, 34-antiskid structure, 40-circuit board, 41-eight pin, 42-wiring terminal knife, 43-terminal knife reinforcing part, 44-channel, 50-clamping piece, 51-spiral through hole, 52-circuit board clamping groove, 53-wire core fixing groove, 54-wire core separating structure, 55-terminal knife through groove and 56-fixing groove, 60-data copper cable.

Detailed Description

The invention will be further explained with reference to the drawings.

The embodiment discloses a copper cable pre-termination connector, the structure of which is shown in fig. 1 to 7, the structure of leading in wire through the rear end of the connector is shown in fig. 8, a shell 20 is opened by taking a transverse connecting shaft 14 as an axis, after the shell is opened, a clamping piece 50 is taken down as shown in fig. 4, three parts which show that the connector can be normally disassembled are shown in fig. 3, and in order to ensure the stability of the finished product of the connector, except the three parts, other modules do not support secondary assembly.

The data copper cable 60 is cut according to the required length of the pre-terminated data copper cable 60, one end or two ends of the data copper cable 60 penetrate through the tail of the lock sleeve 30, the penetrating distance is not limited too much before the termination, the outer skin of the data copper cable 60 is stripped through a tool or equipment, the wire core is exposed about 2cm, the lay length of the wire core and the wire pair does not need to be loosened for straightening, and the exposed root of the data copper cable 60 with a shielding layer or a framework needs to be removed.

The data copper cable 60 is aligned with the spiral through hole 51 of the clamping piece 50, the structure of the clamping piece 50 is as shown in fig. 10-12, the wire inlet transition region is convenient and the threading precision is reduced, and the four pairs of wire cores pass through the spiral through hole 51 in a spiral winding path and reach the terminal cutter through groove 55. The inlet wire structure in the card firmware 50 is four spiral inlet wire through-holes that twist around each other and arrange, lets data copper cable 60 pass through under the circumstances of not losing self lay length until reaching the termination point, and data copper cable 60 need not to loosen the pair twist state of copper cable 60 itself before the termination, directly accomplishes the joint through card firmware 50, promotes echo and insertion loss performance greatly.

The clamping piece 50 with the data copper cable 60 is assembled on the circuit board 40, the structure of the circuit board 40 is shown in fig. 9, the circuit board clamping groove 52 is matched with the circuit board 40, the fixing groove 56 is matched with the clamping piece fixing portion 12, the circuit board 40 enters the bottom of the circuit board clamping groove 52, four groups of wiring terminal knives 42 reach two sides of the wire core separating structure 54 along the terminal knife through groove 55 under the support of the terminal knife reinforcing piece 43, namely, the wire core of the data copper cable 60 is aligned with the wiring terminal knives 42 of the circuit board 40 shown in fig. 9, each pair of wire cores reach the region of the terminal knife through groove 55 and are separated by the wire core separating structure 54, the technical implementation effect is that short circuit is prevented in the terminating process or after the terminating, and the wire core is cut off.

After the above-mentioned construction procedure targets in place, begin closed casing 20, the closed process is also termination card line process, eight first protruding structures 24 match with sinle silk fixed slot 53, with terminal sword through groove 55 local matching, press the sinle silk, make data copper cable 60 sinle silk crust puncture by binding post sword 42, and pierce the sinle silk conductor, also fix the sinle silk and avoid appearing the displacement, four protruding structures of second match the top plane of card firmware 50 simultaneously, in order to stabilize the joint between card firmware 50 and circuit board 40 thoroughly, after the closure, casing 20 partly wraps data copper cable 60, and a plurality of third protruding structure 26, further fix data copper cable 60 and avoid appearing the displacement. Finally, the lock sleeve 30 is screwed clockwise (as shown in fig. 13), the internal thread 32 is matched with the external thread 22, until the two one-way buckles 33 are closed with the two lock grooves 23, and once closed, the two one-way buckles are never loosened. Preferably, the core area of the housing 20 includes twelve second protruding structures 25, eight of which are responsible for fixing four pairs of eight cores and conductors of the data copper cable 60, and the remaining four are used for fixing the fixing member 50 on the circuit board 40. The outer end of the external thread 22 of the shell 20 is composed of two 1/4 arc-shaped half wraps, twenty third protruding structures 26 are arranged inside the shell, and the size of each protruding structure does not exceed the thickness of the sheath of the data copper cable 60 and is uniformly distributed in the passing area of the data copper cable 60. When the outer end of the shell 20 is used for fixing the data copper cable 60, the diameter of the data copper cable 60 can be adapted, and if the thicker copper cable 60 is connected, the pressure borne by the copper cable 60 can be relieved beyond two 1/4 circular arcs, so that the stability can be ensured, the outer skin of the data copper cable 60 is uniformly stressed, and the data copper cable 60 cannot be damaged.

The above steps are completed, the connector is assembled, as shown in fig. 2, 6 and 7, the plug 10 with the spring plate 11 is compatible with a common RJ data interface as shown in fig. 5, the data of the RJ module is connected in a matching way through an eight-pin 41 and an eight-pin bayonet 13, the data is clamped with the wire core of a data copper cable 60 through a channel 44 and a terminal knife 42 to reach the copper cable 60, and finally the whole set of pre-termination system is served.

The circuit board 40 is arranged in the connector, two ends of the circuit board 40 respectively reach the plug 10 and the clamping piece 50, the circuit board 40 is fixed in the connector, the distribution path of the circuit board 40 optimizes the structure of the channel 44 according to the characteristic of a network signal transmission curve, and compared with a common RJ45 crystal head, the pre-terminated connector of the copper cable 60 can improve the insertion loss and return loss performance by more than 20%. The difference between the paths a and B of the channel 44 of the circuit board 40 is that the cross connection sequence of each connection terminal blade 42 and each pin is opposite, and the paths a and B are respectively used at two ends of the copper cable in a matching manner.

The clamping piece 50 is matched with a wiring terminal knife 42 of the circuit board 40, namely the wiring terminal knife 42 can enter the wire core fixing groove 53, the structure of the clamping piece 50 is matched with that of the shell 20 in a concave-convex mode, after the data copper cable 60 passes through the lock sleeve 30, the data copper cable 60 enters and is fixed in the clamping piece 50 in a four-pair eight-core wire core spiral mode, after the shell 20 is closed, the data copper cable 60 is matched with the clamping piece 50 in a concave-convex mode, the wire core of the data copper cable 60 is subjected to matching pressure, the wire skin is clamped by the wiring terminal knife 42 on the circuit board 40, the clamping is broken, meanwhile, the wire core fixing of the data copper cable 60 and the integral fixing of the copper cable 60 are completed, and the end.

The lock sleeve 30 is provided with an internal thread 32 which is matched with the external thread 22 of the shell 20, the tail end of the former and the tail end of the latter are provided with a one-way buckle 33 and a lock catch groove 23, after the end connection of the data copper cable 60 is finished, the one-way buckle lock sleeve 30 is screwed clockwise until the lock sleeve 30 and the lock catch groove 23 of the wire fixing shell 20 are closed, the release is never generated after the closing, and the end connection of the connector and the data copper cable 60 is finished.

The technical scheme has the beneficial effects that: by adopting the technical scheme, after the pre-terminated connector of the copper cable 60 is terminated, the wire fixing structure at 2 positions of the copper cable 60 area and the wire core area of the wire fixing shell 20 is completely locked through the locking sleeve 30, 3 measures are totally taken, the node of the fixed termination of the 3 measures is not influenced by displacement, and once the 3 measures for fixing the wire are closed, the non-violent measure cannot be decomposed. The invention can not only ensure the stability of the physical layer of the data copper cable 60 in termination, but also optimize the better transmission path of the analog network signal and optimize the signal transmission performance by repeated experiments, and is applied to the circuit board 40, the eight pins 41 of the circuit board 40 penetrate through the plug 10 of the wire fixing shell 20, the integrally optimized channel 44 path passes through the circuit board 40 until the wiring terminal knife 42, so that the conductors are integrally formed and fused into the circuit board 40, no middle node exists, the channel 44 path is adjusted and calibrated for several times, thereby achieving the excellent insertion loss and return loss compared with the common RJ45 crystal head, higher keeping the integrity of the signal after passing through the connector, and the final purpose of optimizing the circuit board 40 is to improve the integrity and stability of the signal passing. The circuit board 40 is optimized from the eight pins 41, the channel 44 path, and the connection terminal blade 42 at the other end as a whole, and no intermediate node exists.

The connector can enable a network link to achieve better insertion loss and return loss, and the index of a test result is improved by more than 20%. The matching degree of the connector and the interface of the RJ45 module is 100%, and the connector can meet the matching of industrial ports without independently providing a special corollary equipment interface, and meanwhile, the connector is not limited by the requirement of transmission performance. In the process of terminating the connector and the data copper cable, two fixing procedures of the wire core and the clamping piece 50 can be completed in one step, the assembly efficiency is increased, and the yield is improved. The electrical performance can meet the bandwidth application of Cat5e 155MHz, Cat 6250 MHz, Cat6A 500MHz, Cat 7600 MHz and Cat 82000 MHz. The connector can meet different network requirements of non-shielding and shielding, the structure is suitable for manufacturing of different materials, and production and manufacturing can be completed without special materials.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A copper cable pre-termination connector, comprising:

2. The pre-terminated connector of copper cables as claimed in claim 1, wherein the ends of the two half shells are provided with locking grooves, the head end of the lock sleeve is provided with a one-way buckle matched with the locking grooves, and the one-way buckle is clamped in the locking grooves after the lock sleeve is screwed on the shell.

3. A copper cable pre-termination connector according to claim 1 wherein the intermediate portions of the two half shells are provided with second raised formations on their inner faces which press against the fastener when closed to secure the fastener.

4. A pre-terminated connector for copper cables according to claim 1, wherein the end portions of the two half shells are provided on their inner faces with third projecting formations which press against the insulating sheath of the copper cable passing through the lock casing to secure the copper cable when closed.

5. The pre-terminated connector of claim 1, wherein the inlet end of the helical through-hole of the retainer is flared.

6. A copper cable pre-terminated connector according to claim 1, wherein a terminal blade reinforcement is provided at the terminal blade of the circuit board, the terminal blade reinforcement for reinforcing the terminal blade.

7. The pre-terminated connector of claim 1, wherein the terminal blade channel of the engaging member further includes a core separation structure disposed within the channel opposite the outlet end of the spiral through hole and inside the outlet end for separating a pair of cores passing therethrough.

8. The pre-terminated connector of claim 1, wherein the outer sidewall of the sleeve is provided with a non-slip feature.

9. The pre-terminated connector of claim 1, wherein the four helical through holes of the fastener are arranged in a square array for passing through four pairs of wire cores of the copper cable.

10. The copper cable pre-termination connector of claim 9, wherein the pins of the circuit board are eight pins connected to four pairs of cores of the copper cable.