WO2017027722A1

WO2017027722A1 - Electrical plug connector

Info

Publication number: WO2017027722A1
Application number: PCT/US2016/046583
Authority: WO
Inventors: Paul John Pepe; Neil Ktul Nay; Brandon Eugene Bristow
Original assignee: Commscope Technologies Llc
Priority date: 2015-08-12
Filing date: 2016-08-11
Publication date: 2017-02-16
Also published as: ES2982348T3; US20210175662A1; US20200076120A1; US10840633B2; EP3335282A1; EP3869635A1; EP3869635B1; EP3335282A4; EP3335282B1; US11381032B2; ES2877724T3; CN107925195B; US20180226743A1; CN107925195A; US10411398B2

Abstract

An electrical plug connector terminates a twisted pair electrical cable. The electrical plug connector includes a base and a plug housing holding electrical contacts therebetween. The base includes a divider structure including separation walls. At least one of the separation walls defines an abutment surface against which a forward end of the electrical cable abuts when terminated by the electrical plug connector. The plug housing defines slots so that the electrical contacts are accessible. The electrical plug connector axially secures an outer jacket of the electrical cable against rearward movement relative to base. The at least one separation wall inhibits forward axial movement of the outer jacket of the electrical cable relative to the base.

Description

ELECTRICAL PLUG CONNECTOR

Cross-Reference to Related Application

This application is being filed on August 11, 2016 as a PCT International Patent Application and claims the benefit of U.S. Patent Application Serial No.

62/204,016, filed on August 12, 2015, the disclosure of which is incorporated herein by reference in its entirety.

Background

Telecommunications cable lines are typically connected into port or jack terminals using plug connectors that enable the cables to be easily connected and disconnected. The cable lines are comprised of a number of wire pairs surrounded by a cable jacket. Quick connect cables are often constructed by securing a connector plug to the end of the cable wires and sliding the connector plug into a matching port terminal where it locks into place with a simple lever lock. An RJ45 type connector is one example.

Improvements are desired.

Summary

Some aspects of the disclosure relate to an electrical plug connector configured to terminate an electrical cable. The electrical plug connector includes a base, a plug housing, and a strain-relief boot. The base includes a divider structure that defines a plurality of channels. The divider structure includes separation walls. At least one of the separation walls defines an abutment surface against which a forward end of the electrical cable abuts when terminated by the electrical plug connector. The plug housing defines an interior sized to receive a plurality of electrical contacts and a portion of the base. The plug housing defines slots so that the electrical contacts are accessible. The strain-relief boot defines a passage sized to receive the electrical cable. The strain-relief boot includes grip members configured to axially secure an outer jacket of the electrical cable against rearward movement relative to the strain-relief boot. The at least one separation wall inhibits forward axial movement of the outer jacket of the electrical cable relative to the base. In certain implementations, the strain-relief boot is integrally formed with the base.

In certain implementations, the plurality of separation walls includes a first separation wall and a plurality of second separation walls. The second separation walls are orthogonal to the first separation wall. The at least one separation wall that inhibits forward axial movement of the outer jacket of the electrical cable is one of the second separation walls.

In certain examples, the first separation wall includes a forwardly extending flange coplanar with the first separation wall. The forwardly extending flange extends farther forwardly than the second separation walls. In an example, the forwardly extending flange extends between two adjacent ones of the second separation walls.

In certain implementations, the first separation wall extends between side walls of the base, wherein no other structure extends from the sidewalls to engage the electrical cable.

In certain implementations, the grip members define rearwardly facing ramps and forwardly facing shoulders.

In certain implementations, the grip members are disposed circumferentially around the passage defined by the strain-relief boot.

In certain implementations, the base includes a plurality of tabs having rearward facing shoulders and the plug housing defines openings having forward facing shoulders. The rearward facing shoulders of the tabs engage the forward facing shoulders of the openings to secure the plug housing to the base.

In certain implementations, the divider structure defines six channels.

In certain examples, the six channels are arranged in a top row of three channels and a bottom row of three channels. The channels in the top row are vertically aligned with the channels of the bottom row.

In certain implementations, a load bar configured to carry the plurality of electrical contacts. The load bar is sized to fit within the plug housing.

In certain examples, the base includes forward flanges that extend forwardly of the divider structure. The forward flanges being sized and spaced to abut a rearward-facing abutment surface of the load bar so that the forward flanges push the load bar within the plug housing towards slots defined in the plug housing when the base is pushed into the plug housing. In an example, the forward flanges are sufficiently sized to inhibit pinching the conductors between the divider structure and the load bar. In an example, the abutment surface of the load bar is taller than a remainder of the load bar.

Other aspects of the disclosure relate to a base of an electrical plug connector including a strain-relief section and a manager section integrally formed with the strain-relief section and extending forwardly from the strain-relief section. The strain- relief section defines a passage sized to receive an electrical cable. The strain-relief boot includes grip members configured to axially secure an outer jacket of the electrical cable against rearward movement relative to the strain-relief boot. The manager section includes a divider structure that includes a first separation wall extending between opposing sidewalls. The divider structure also includes a second separation wall that extends orthogonal to the first separation wall. The second separation wall extends rearwardly of the first separation wall.

In certain implementations, flanges extend forwardly of the manager section, the flanges being coplanar with the opposing sidewalls.

Other aspects of the disclosure relate to a method of terminating an electrical cable having an outer jacket surrounding a plurality of twisted wire pairs. The method includes inserting an end of the electrical cable through a passage defined in a base until a forward end of the outer jacket abuts part of a divider structure of the base; routing twisted wire pairs through channels defined by the divider structure; inserting ends of the twisted wire pairs into the load bar; inserting electrical contacts into the load bar to make electrical contact with the twisted wire pairs; and pushing the load bar and electrical contacts into a plug housing using the base.

In certain implementations, routing the twisted wire pairs through the channels defined by the divider structure comprises routing one of the twisted wire pairs through a corresponding channel defined by the divider structure. In certain examples, the divider structure defines a top row of channels and a bottom row of channels. Routing the twisted wire pairs through the channels includes routing a twisted wire pairs through each channel in the top row and through only a middle channel in the bottom row.

Brief Description of the Drawings

FIG. 1 is a perspective view of an example electrical plug connector configured in accordance with the present disclosure;

FIG. 2 is an exploded view of the electrical plug connector of FIG. 1; FIG. 3 is a perspective view of the wire manager of the electrical plug connector of FIG. 1;

FIG. 4 is another perspective view of the wire manager of the electrical plug connector of FIG. 1;

FIG. 5 is an end view of the wire manager of the electrical plug connector of FIG. 1;

FIG. 6 is a bottom plan view of the electrical plug connector of FIG. 1 with a plug housing exploded forwardly of a remainder of the electrical plug connector;

FIG. 7 is a longitudinal cross-sectional view of the electrical plug connector of FIG. 6 taken along the 7-7 line;

FIG. 8 is a bottom plan view of the electrical plug connector of FIG. 1;

FIG. 9 is a longitudinal cross-sectional view of the electrical plug connector of FIG. 8 taken along the 9-9 line;

FIG. 10 is a perspective view of another example wire manager suitable for use in the electrical plug connector of FIG. 1;

FIG. 11 is a perspective view of an electrical plug connector with a color- coded clip configured in accordance with the present disclosure;

FIG. 12 is a plan view of the electrical plug connector of FIG. 11;

FIG. 13 is a perspective view of the electrical plug connector of FIG. 11 with the clip exploded from a boot of the electrical plug connector; and

FIG. 14 is a perspective view of the boot of FIG. 13.

Detailed Description

The disclosure is directed to an electrical plug connector configured to terminate twisted pairs of conductors of an electrical cable. In certain implementations, the electrical plug connector includes an integral wire manager and boot. In certain implementations, the electrical plug connector includes a wire manager having dividing walls that inhibit forward axial movement of the electrical cable or jacket thereof. In certain implementations, the electrical plug connector includes a wire manager that includes forward flanges configured to push a load bar into position within a plug housing.

FIG. 1 illustrates an example electrical plug connector 100 configured in accordance with the principles of the present disclosure. The electrical plug connector 100 is configured to terminate an electrical cable 105. In particular, the electrical plug connector 100 is configured to terminate twisted pairs 107 (FIG. 7) of conductors of an electrical cable 105. The electrical plug connector 100 extends from a first end 101 to a second end 102. The electrical cable 105 extends into the electrical plug connector 100 at the second end 102. Twisted pairs 107 of conductors of the electrical cable 105 are routed through the electrical plug connector 100 to electrical contacts 103 towards the first end 101 (see FIG. 7).

As shown in FIG. 2, the electrical plug connector 100 includes a base 140, a load boar 120, multiple electrical contacts 130, and a plug housing 110. The load bar 120, the electrical contacts 130, and a portion of the base 140 are sized and shaped to fit within an interior of the plug housing 110 when the electrical plug connector 100 is assembled. In certain implementations, the base 140 includes a strain-relief boot 148 to provide strain-relief to the electrical cable 105. In certain implementations, the base 140 includes grip members 150 that inhibit axial and/or rotational movement the electrical cable 105 relative to the base 140.

To assemble the electrical plug connector 100, the electrical contacts 130 are positioned in the load bar 120. The electrical contacts 130 and the load bar 120 are pushed into an open rear of the plug housing 110 using the base 140. The base 140 is configured to axially secure to the plug housing 110 to hold the load bar 120 and electrical contacts 130 thereat.

The plug housing 110 includes a body 111 that extends from a closed forward end 112 to an open rearward end 113. The body 111 defines a plurality of slots 114 towards the forward end 112. The body 111 also defines a latching handle 115 having shoulders 116 configured to secure the electrical plug connector 110 at a receptacle (e.g., an electrical jack). The body 111 also defines latching openings 118 as will be described in more detail herein.

The load bar 120 includes a body 121 defining slots 122 sized to receive the electrical contacts 130. The load bar 120 is configured to carry the electrical contacts 130 when the electrical contacts 130 are disposed within the slots 122. The load bar body 121 is shaped to fit within an interior of the plug housing 110 so that the electrical contacts 130 align with the slots 114 of the plug housing 110. The load bar 120 also includes a rearward-facing abutment surface 123.

The base 140 includes a manager section 141 that organizes the twisted pairs 107 of conductors of the electrical cable 105. The manager section 141 includes a divider structure 143 that defines a plurality of channels 144 (see FIG. 5). In the example shown, the divider structure 143 defines six channels 144. In other examples, however, the divider structure 143 can define a greater or lesser number of channels 144. In an example, the divider structure 143 can define four channels 144. In another example, the divider structure 143 can define five channels 144. In another example, the divider structure 143 can define eight channels 144. In another example, the divider structure 143 can define four channels 144.

As shown in FIGS. 3-5, the divider structure 143 includes a first separation wall 145. Some of the twisted pairs 10 7 of conductors are directed to one side of the first separation wall 145 and others of the twisted pairs 107 of conductors are directed to another side of the first separation wall 145 (see FIG. 7). The divider structure 143 also includes one or more second separation walls 146 that extend outwardly from the first separation wall 145. In the example shown, the second separation walls 146 extend orthogonal to the first separation wall 146. In certain implementations, side walls 147 are disposed at opposite ends of the first separation wall 145. In an example, the side walls 147 extend parallel to the second separation walls 146. The sidewalls 147 and second separation walls 146 cooperate to define the channels 144.

In certain implementations, the second separation walls 146 have rear- facing shoulders 146a. In certain implementations, the second separation walls 146 extend further rearward than the first separation wall 145 so that the rear-facing shoulders 146a are spaced rearward from the first separation wall 145 (see FIG. 4). In certain

implementations, a flange 145a can extend forward of the first separation wall 145 (see FIG. 10). For example, the flange 145a can be planar with the first separation wall 145.

In certain implementations, the forwardly extending flange 145a facilitates maintaining separation of twisted pairs as the twisted pairs extend through the channels. In some examples, the forwardly extending flange 145a extends between two adjacent second separation walls 146 (see FIG. 10). In other examples, the forwardly extending flange 145a extends across at least a majority of a width of the first separation wall 145. In certain implementations, the second separation walls 146 are disposed further rearwardly than the first separation wall so that a section of the first separation wall 145 is disposed forward of the second separation walls 146. In certain examples, the second separation walls 146 extend further rearward than the flange 145a extends forward of the first separation wall 145.

In certain implementations, the base 140 also includes a strain-relief boot section 142 (FIG. 4). The boot section 142 includes a boot body 148 that defines a through-passage 149 sized to enable the electrical cable 105 to extend therethrough. An inner diameter of the through-passage 149 is sized so that an outer jacket 109 of the cable 105 extends fully through the boot body 148 and into the manager section 141 of the base 140 (see FIG. 7). In certain implementations, the outer jacket 109 of the cable 105 extends to the rear-facing shoulders 146a of the second separation walls 146 (see FIG. 7). In such implementations, the rear-facing shoulders 146a inhibit continued forward axial movement of the outer jacket 109.

In certain implementations, the boot body 148 includes one or more grip members 150 (see FIGS. 3, 5, and 7) disposed within the through-passage 149 to engage the outer jacket of the cable 105. Each grip member 150 includes a forward shoulder and a rearward ramp that bite into the outer jacket 109 of the cable 105. In certain examples, the grip members 150 inhibit rotational movement of the cable 105 relative to the base 140. In certain examples, the grip members 150 inhibit rearward axial movement of the cable 105 relative to the base 140. In the example shown, the boot body 148 includes four grip members 150 circumferentially spaced along the through-passage 149 (see FIG. 5). In other implementations, the boot body 148 can include a greater or lesser number of grip members 150.

In certain implementations, the base 140 includes forward flanges 152 that extend forwardly of the divider structure 143 (see FIG. 3). The forward flanges 152 are sized and spaced to abut the rearward-facing abutment surface 123 of the load bar 120. When the base 140 is pushed into the plug housing 110, the forward flanges 152 push the load bar 120 within the plug housing 110 towards the slots 114. In certain examples, the forward flanges 152 are sufficiently sized to inhibit pinching the conductors between the divider structure 143 and the load bar 120.

In certain implementations, the base 140 is configured to lock to the plug housing 110 in an axially and rotationally fixed position. In the example shown, the plug housing 110 defines holes 118 that have forward facing edges 119 (see FIG. 2). The base 140 includes tabs 153 that each have a forward ramp 154 and a rearward shoulder 155 (see FIG. 4). When the base 140 is inserted into the plug housing 110, the tabs 153 enter the holes 118 and the rearward shoulders 155 engage the forward facing edges 119 (see FIGS. 1 an 8). In other implementations, the base 140 may define the holes and the plug housing 110 may define the tabs. In still other implementations, the base 140 may otherwise secure to the plug housing 110.

In accordance with some aspects of the disclosure, an electrical cable is terminated by inserting an end of the electrical cable through a passage defined in a base until a forward end of the outer jacket abuts part of a divider structure of the base; and routing twisted wire pairs through channels defined by the divider structure. Ends of the twisted wire pairs are inserted into a load bar. Electrical contacts also are inserted into the load bar to make electrical contact with the twisted wire pairs. The load bar and electrical contacts are pushed into a plug housing using the base, thereby assembling an electrical plug connector.

In certain implementations, the twisted wire pairs are routed through the channels defined by the divider structure by routing each of the twisted wire pairs through a corresponding channel defined by the divider structure.

In certain implementations, the divider structure defines a top row of channels and a bottom row of channels. In certain examples, the electrical cable includes four twisted wire pairs. In such examples, routing the twisted wire pairs through the channels includes routing a first of the twisted wire pairs through a first channel in the top row, a second of the twisted wire pairs through a second channel in the top row, a third of the twisted wire pairs through a third channel in the top row, and a fourth of the twisted wire pairs through only a middle channel in the bottom row.

In certain examples, the electrical plug connector is an RJ45 connector.

In accordance with certain aspects of the disclosure, one or more color- coded features can be added to the plug or cable to identify one or more traits of the plug or cable. For example, the color-coded feature can identify whether the plug is shielded, the type of cable (e.g., number of jackets, number of twisted pairs, etc.), the diameter of the cable, the subscriber receiving the signals conveyed over the cable, etc.

FIGS. 11-14 illustrate an example clip 160 that can be mounted to the plug connector 100. In some implementations, the clip 160 can be mounted to a boot 140' of the plug connector 100. In other implementations, the clip 160 can be mounted to a plug housing 110 of the plug connector 100. In still other implementations, the clip 160 can be mounted to the cable.

In certain examples, the clip 160 is flush with the boot 140' on at least one side. In the example shown, the clip 160 is flush with the boot 140' on three sides. In certain examples, the clip 160 is flush with the plug housing 110 of the plug connecter 100. In the example shown, the clip 160 is flush with the plug housing 110 on three sides.

The plug housing 110 has a first side 110a and an opposite second side 110b that extend between a front and a rear of the plug housing 110. The plug housing 110 also includes opposite first and second ends that extend between the first and second sides 110a, 110b and between the front and the rear of the plug housing 110. The latching handle 115 is disposed at the first end and the slots 114 are accessible at the second end. In certain examples, the clip 160 does not extend beyond the first and second sides 110a, 110b of the plug housing 110 when mounted at the plug connector 100. In the example shown in FIG. 12, the clip 160 is flush with the first and second sides 110a, 110b of the plug housing 110 when mounted at the plug connector 100.

In certain implementations, the clip 160 includes a base 161 having two flexible arms 163 extending outwardly therefrom to respective distal ends. Each of the arms 163 includes a latching member 164 at the distal end. In certain examples, the latching members 164 extend parallel with the base 161.

In certain implementations, the clip 160 wraps around and latches to the plug housing 110, boot 140, or cable. In certain examples, the base 161 defines a notch 162 to accommodate a latching assist arm L or other feature on the plug connector 100.

In some implementations, the entire clip 160 is uniformly colored. In other implementations, the base 161 of the clip 160 has a different color from the flexible arms 163.

Having described the preferred aspects and implementations of the present disclosure, modifications and equivalents of the disclosed concepts may readily occur to one skilled in the art. However, it is intended that such modifications and equivalents be included within the scope of the claims which are appended hereto.

Claims

What is claimed is:

1. An electrical plug connector configured to terminate an electrical cable including twisted wire pairs, the electrical plug connector comprising:

a base including a divider structure that defines a plurality of channels, the divider structure including a plurality of separation walls, at least one of the separation walls defining an abutment surface against which a forward end of the electrical cable abuts when terminated by the electrical plug connector;

a plug housing defining an interior sized to receive a plurality of electrical contacts and a portion of the base, the plug housing defining slots so that the electrical contacts are accessible; and

a strain-relief boot defining a passage sized to receive the electrical cable, the strain-relief boot including a plurality of grip members configured to axially secure an outer jacket of the electrical cable against rearward movement relative to the strain-relief boot;

wherein the at least one separation wall inhibits forward axial movement of the outer jacket of the electrical cable relative to the base.

2. The electrical plug connector of claim 1, wherein the strain-relief boot is integrally formed with the base.

3. The electrical plug connector of claim 1, wherein the plurality of separation walls includes a first separation wall and a plurality of second separation walls, the second separation walls being orthogonal to the first separation wall, wherein the at least one separation wall that inhibits forward axial movement of the outer jacket of the electrical cable is one of the second separation walls.

4. The electrical plug connector of claim 3, wherein the first separation wall includes a forwardly extending flange coplanar with the first separation wall, the forwardly extending flange extending farther forwardly than the second separation walls.

5. The electrical plug connector of claim 4, wherein the forwardly extending flange extends between two adjacent ones of the second separation walls.

6. The electrical plug connector of claim 1, wherein the first separation wall extends between side walls of the base, wherein no other structure extends from the sidewalls to engage the electrical cable.

7. The electrical plug connector of claim 1, wherein the grip members defines rearwardly facing ramps and forwardly facing shoulders.

8. The electrical plug connector of claim 1, wherein the grip members are disposed circumferentially around the passage defined by the strain-relief boot.

9. The electrical plug connector of claim 1, wherein the base includes a plurality of tabs having rearward facing shoulders and the plug housing defines openings having forward facing shoulders, and wherein the rearward facing shoulders of the tabs engage the forward facing shoulders of the openings to secure the plug housing to the base.

10. The electrical plug connector of claim 1, wherein the divider structure defines six channels.

11. The electrical plug connector of claim 10, wherein the six channels are arranged in a top row of three channels and a bottom row of three channels, wherein the channels in the top row are vertically aligned with the channels of the bottom row.

12. The electrical plug connector of claim 1, further comprising a load bar configured to carry the plurality of electrical contacts, the load bar being sized to fit within the plug housing.

13. The electrical plug connector of claim 12, wherein the base includes forward flanges that extend forwardly of the divider structure, the forward flanges being sized and spaced to abut a rearward-facing abutment surface of the load bar so that the forward flanges push the load bar within the plug housing towards slots defined in the plug housing when the base is pushed into the plug housing.

14. The electrical plug connector of claim 13, wherein the forward flanges are sufficiently sized to inhibit pinching the conductors between the divider structure and the load bar.

15. The electrical plug connector of claim 13, wherein the abutment surface of the load bar is taller than a remainder of the load bar.

16. The electrical plug connector of claim 1, wherein the electrical plug connector forms an RJ45 plug connector.

17. The electrical plug connector of claim 1, wherein the electrical cable includes four twisted wire pairs.

18. A base of an electrical plug connector for twisted wire pairs, the base comprising: a strain-relief section defining a passage sized to receive an electrical cable, the strain-relief boot including a plurality of grip members configured to axially secure an outer jacket of the electrical cable against rearward movement relative to the strain-relief boot; and

a manager section integrally formed with the strain-relief section and extending forwardly from the strain-relief section, the manager section including a divider structure that includes a first separation wall extending between opposing sidewalls, the divider structure also including a second separation wall that extends orthogonal to the first separation wall, the second separation wall extending rearwardly of the first separation wall.

19. The base of claim 18, further comprising flanges extending forwardly of the manager section, the flanges being coplanar with the opposing sidewalls.

20. A method of terminating an electrical cable having an outer jacket surrounding a plurality of twisted wire pairs, the method comprising:

inserting an end of the electrical cable through a passage defined in a base until a forward end of the outer jacket abuts part of a divider structure of the base;

routing twisted wire pairs through channels defined by the divider structure;

inserting ends of the twisted wire pairs into the load bar; inserting electrical contacts into the load bar to make electrical contact with the twisted wire pairs; and

pushing the load bar and electrical contacts into a plug housing using the base, thereby assembling an electrical plug connector.

21. The method of claim 20, wherein routing the twisted wire pairs through the channels defined by the divider structure comprises routing one of the twisted wire pairs through a corresponding channel defined by the divider structure.

22. The method of claim 21, wherein the divider structure defines a top row of channels and a bottom row of channels, wherein the electrical cable includes four twisted wire pairs, and wherein routing the twisted wire pairs through the channels includes routing a first of the twisted wire pairs through a first channel in the top row, a second of the twisted wire pairs through a second channel in the top row, a third of the twisted wire pairs through a third channel in the top row, and a fourth of the twisted wire pairs through only a middle channel in the bottom row.

23. The method of claim 20, wherein the electrical plug connector is an RJ45 connector.

24. The method of claim 20, further comprising mounting a color-coded clip onto the base.