JP2020038852A - RJ45 plug - Google Patents

Abstract

To provide electrical connectors and more specifically a high performance RJ45 type plug.SOLUTION: A high performance plug has a housing, eight contacts contained within a font of the housing, and a termination block that is symmetric about its axis. In one embodiment, the termination block has contact interfaces configure to electrically engage plug contacts and arranged such that the contact interfaces which are connected to plug contacts 1-8, become connected to plug contacts 8-1 when the termination block is rotated 180 degrees. In one embodiment, the coupling from the paths for contact 3 to contacts 1, 2, 4, and 5, respectively, is the same as the coupling for contact 6 to contacts 7, 8, 5, and 4, respectively.SELECTED DRAWING: Figure 15

Description

  The present invention relates generally to electrical connectors, and more specifically, to high performance RJ45 type plugs.

  TIA and international standards specify that RJ45 plug performance is compatible with CAT5E, CAT6, and CAT6A mating connectors. It was specified that the lower category CAT5E plugs, while having poor electrical performance, could have large performance variations. Higher bandwidth plugs (CAT6 and CAT6A) require much smaller performance variations with higher performance. To obtain backward compatibility, the allowable performance range for CAT6 and CAT6A plugs is specified to be part of the CAT5E plug performance range. The industry is considering higher bandwidth that should be backward compatible with CAT5E, CAT6, and CAT6A plugs. Plugs are required to have the highest performance in some ranges of CAT6 and CAT6A plug performance.

  As defined, conductor pair 3-6 is split around conductor pair 4-5. Most plug designs, such as those in U.S. Patent Nos. 6,811,445 and 5,727,962 (incorporated herein by reference in their entireties), split a 3-6 conductor pair. Terminates at contacts 3 and 6. The division, the 3-6 pair division with respect to the 4-5 pair division, changes for each termination, and is a main source of fluctuation in plug performance. In addition, the conductor pair arrangement from one end of the cable to the other end of the cable changes from clockwise to counterclockwise, so that the 3-6 conductor is at the top at one end and at the bottom at the other end. is there. Due to the location of the 3-6 conductor pair in the cable, the transition of the 3-6 conductor pair relative to the 4-5 conductor pair changes from one end of the cable to the other end of the cable, thus introducing variation in plug performance. The position of the conductor relative to the coupling conductor and the coupling conductor length affects plug performance. Plug performance varies with conductor gauge, conductor dielectric material thickness, and material electrical properties.

In one embodiment, the invention is an RJ45 plug that features an assembled plug contact, a termination block assembly, and a plug housing having a strain relief boot. The termination block can feature an integrated leadframe contact having an IDC for wire termination at one end and a plug contact interface at the other end. The plug contacts can be assembled at the factory and allow for a stable crimp depth. One end of the plug contact may include an interference slot for connecting to a termination block leadframe contact interface end. In one embodiment, the plane through the center of the interference slot, the center of the plug housing opening that receives the termination block, the center of the termination block vertical height, and the center of the termination block leadframe contact interface end thickness is the same. The IDCs for pairs 1-2 and 7-8 lie on the sides, while the IDCs for pairs 4-5 and 3-6 lie on the top and bottom. The termination block leadframe contacts are designed such that the contacts 3 mating with the contacts 1, 2, 4 and 5 are the same as the contacts 6 mating with the contacts 7, 8, 5 and 4. This allows the termination block to rotate 180 degrees along the cable axis, so that the IDC 3-6 is on the same side of the cable as the conductor 3-6. By rotating 180 degrees, the terminal block lead frame contacts 1, 2, 3, 4, 5, 6, 7, 8 become pins 8, 7, 6, 5, 4, 3, 2, 1, respectively. The termination block features a wire pair separator and a cross divider. The pair separator facilitates the return of the smallest pair for termination. The cross divider is pushed under the cable jacket to effect separation of the conductor pairs. The IDC is positioned to minimize coupling between pairs. The coupling required for the desired plug performance is achieved by coupling in fixed contacts closer to the plug / jack mating point located outside the signal current path. IDCs are designed to terminate multi-gauge solid or stranded conductors. Both allow for one plug design suitable for different cable designs.
[Appendix 1]
A communication plug,
A housing,
Eight plug contacts housed within the front portion of the housing, arranged in a row from 1 to 8 from the first side of the housing toward the second side of the housing. Said plug contacts arranged,
An end block housed within the housing, the end block having eight contact interfaces, wherein the eight contact interfaces are from a first side of the housing to a second side of the housing. Said end blocks being arranged in a row so as to be numbered from 1 to 8 and electrically connected to corresponding plug contacts, said end blocks being symmetrical about an axis;
The communication plug including:
[Appendix 2]
The terminal block has a terminal point electrically connected to each of the contact interfaces to form an electrical path, and the terminal point and the contact interface rotate the terminal block 180 degrees about the axis. The communication plug according to claim 1, wherein the contact interfaces connected to the plug contacts 1 to 8 are arranged so as to be connected to the plug interfaces 8 to 1, respectively.
[Appendix 3]
Each of the electric paths is associated with the number of the contact interface, and the connection from the electric path number 3 to the electric path numbers 1, 2, 4, and 5 is formed by the electric path number 6 to the electric path numbers 7, 8, 5, and 5. 3. The communication plug according to claim 2, wherein the communication plugs are arranged so as to be the same as the connections up to 4, respectively.
[Appendix 4]
The termination points for electrical paths 3 and 6 are located on the top or bottom of the termination block, and the termination points for electrical paths 4 and 5 are the termination points for the electrical paths 3 and 6. The termination point for electrical paths 1 and 2 is located on the first side of the termination block, and the termination point for electrical paths 7 and 8 is the termination block 4. The communication plug according to claim 3, wherein the communication plug is located on the second side surface.
[Appendix 5]
The communication plug according to claim 4, wherein the plug contact includes an interface slot fitted by the contact interface.
[Appendix 6]
The communication plug according to claim 3, wherein the plug contact is electrically connected to the contact interface via a circuit board.
[Appendix 7]
The communication plug according to claim 1, wherein the end block includes a wire pair separator.
[Appendix 8]
The communication plug according to claim 1, wherein the end block includes a cross divider.
[Appendix 9]
A communication plug,
A housing,
Eight plug contacts housed within the front portion of the housing, arranged in a row from 1 to 8 from the first side of the housing toward the second side of the housing. Said plug contacts arranged,
An end block housing, said end block housing having eight contact interfaces electrically connected to said plug contacts;
A wire manager configured to be at least partially inserted into the end block housing, wherein at least one of the end block housing and the wire manager is symmetric about an axis; The communication plug including:
[Appendix 10]
The terminal block housing has a terminal point electrically connected to each of the contact interfaces to form an electrical path, and the terminal point and the contact interface allow the terminal block housing to rotate 180 degrees about the axis. 10. The communication plug according to claim 9, wherein the contact interfaces connected to the plug contacts 1 to 8 are arranged to be connected to the plug interfaces 8 to 1, respectively, when rotated by degrees.
[Appendix 11]
The termination block housing has termination points electrically connected to each of the contact interfaces, and the wire manager has wires retained therein for terminating at the termination points of the termination block housing. The wire manager is configured such that when the wire manager rotates 180 degrees about the axis, each of the wires electrically connected to the plug interfaces 1-8 is connected to a contact interface 8-1 respectively. Item 10. The communication plug according to Additional Item 9, wherein
[Appendix 12]
Each of the electrical paths is associated with a number of its contact interface, and the terminal block housing is configured such that each of the connections from electrical path number 3 to electrical path numbers 1, 2, 4, and 5 is connected to electrical path number 6 to electrical path number. 11. The communication plug according to claim 10, wherein the communication plugs are arranged so as to be the same as the connections of numbers 7, 8, 5, and 4, respectively.
[Appendix 13]
13. The communication plug according to claim 12, wherein the plug contact is electrically connected to the contact interface via a circuit board.
[Appendix 14]
A communication plug,
A housing,
At least one strap connected behind the housing;
A cylindrical collar, wherein the cylindrical collar defines a front surface and a back surface, the cylindrical collar having a path extending from the front surface to the back surface, and having a cylindrical collar within a wall of the cylindrical collar. At least one slot extending from the front surface of the at least one strap, the at least one slot configured to engage the at least one strap before the cylindrical collar rotates with respect to the housing. , The cylindrical collar,
The communication plug including:
[Appendix 15]
The cylindrical collar includes a collar groove and at least one pad slot disposed on an inner wall of the cylindrical collar, wherein the collar groove extends radially and the at least one pad slot extends in the axial direction. Extending from the collar groove to the front surface, the housing has at least one pad disposed behind the housing;
The at least one pad moves the at least one pad to the at least one position when the at least one pad slot is aligned with the at least one pad and the cylindrical collar is moved axially toward the housing. Mating the at least one pad slot with the collar groove as the cylindrical collar rotates relative to the housing adjacent the housing. 15. The communication plug according to claim 14, wherein the communication plug is configured to fit into one of the pad slots and the collar groove.
[Appendix 16]
16. The communication plug according to claim 15, including teeth disposed on the front surface of the cylindrical collar, the teeth configured to mate with a collar stop mounted at the rear of the housing.
[Appendix 17]
The collar stop and the teeth are configured such that the cylindrical collar is rotatable in a first direction relative to the housing, but the cylindrical collar is not rotatable in a second direction; 17. The communication plug according to claim 16, wherein the direction is opposite to the second direction.
[Appendix 18]
18. The communication plug according to claim 17, wherein the strap is made of a spring-like material.
[Appendix 19]
19. The communication plug according to claim 18, wherein the color stop is made of a spring-like material.

1 is an isometric view of a communication system that may use a high performance plug. 1 is an exploded isometric view of a first embodiment of a high performance plug. 1 is an exploded isometric view of a first embodiment of a high performance plug. FIG. 3 is a plan view of the high-performance plug of FIG. 2. FIG. 5 is a cross-sectional view of the high-performance plug of FIG. 2 as viewed along line 5-5 of FIG. FIG. 3 is an exploded isometric view of a patch cord using the high-performance plug of FIG. 2. FIG. 3 is an exploded isometric view of a termination block for the high performance plug of FIG. 2. FIG. 3 is an exploded isometric view of a termination block for the high performance plug of FIG. 2. FIG. 7 is an exploded isometric view of a second embodiment of the high performance plug. FIG. 10 is an isometric view of a PCB assembly to be used with the termination block of the smart plug of FIG. 9. FIG. 10 is an isometric view of a PCB assembly to be used with the termination block of the smart plug of FIG. 9. FIG. 9 is an exploded isometric view of a third embodiment of the high performance plug. FIG. 13 is an exploded isometric view of the termination block for the high performance plug of FIG. 12. FIG. 9 is an exploded isometric view of a fourth embodiment of the high performance plug. FIG. 13 is an exploded isometric view of a fifth embodiment of the high performance plug. FIG. 16 is another exploded isometric view of the high performance plug of FIG. 15, with an enlarged view of the block housing and focusing on the termination of the cable for the high performance plug. 17 is another exploded isometric view of the cable and plug arrangement of FIG. FIG. 17 is an exploded isometric view of the high performance plug of FIG. 15 with an enlarged view of the block housing and focusing on the opposite end of the cable of FIG. 16 for the high performance plug. FIG. 19 is another exploded isometric view of the cable and plug arrangement of FIG. 18. FIG. 20 is an isometric view of the smart plug and cable assembly of FIGS. 16-19, showing how a collar is attached to the smart plug. FIG. 20 is an isometric view of the smart plug and cable assembly of FIGS. 16-19, showing how a collar is attached to the smart plug. FIG. 20 is an isometric view of the smart plug and cable assembly of FIGS. 16-19, showing how a collar is attached to the smart plug. FIG. 16 is an end view of the high performance plug of FIG. 15 with a collar attached.

  FIG. 1 shows a communication system 10 according to an embodiment of the present invention. Communication system 10 includes at least one communication cable 12 connected to equipment 14. Although the device 14 is illustrated in FIG. 1 as a patch panel, the device can be a passive device or an active device. Examples of passive devices can be (but are not limited to) the following: Modular patch panel, punch down patch panel, coupler patch panel, wall jack, etc. Examples of active devices may be (but are not limited to) the following: Ethernet switches, routers, servers, physical layer management systems, and power over Ethernet (POE) equipment (found in data centers and / or telecommunications rooms); security devices (such as cameras and other sensors) and door access equipment And telephones, computers, fax machines, printers, and other workstation peripherals. Communication system 10 may further include cabinets, racks, cable management and overhead routing systems, and other such equipment.

  Plugs 20 (including eight contacts 22) are connected to corresponding stranded pair conductors in cable 12 and mate with corresponding jacks 18 in patch panel 14. Although the jack 18 is shown as a modular jack, it may be a punchdown or other type of jack. Although a CAT6A communication system 10 is shown in FIG. 1, a communication system 10 according to the present invention may be configured for use with any of the CAT5E, CAT6, CAT6A, CAT7, CAT7A, and CAT8 or other category communication systems standards. This is possible through the appropriate selection of applicable standard compliant plugs, jacks, cables and equipment.

  2 to 8 show a first embodiment of a high performance plug. Plug 20 is shown in exploded view in FIGS. Assemble the plug housing 24 with the contacts 22. Contact 22 features a slot 42. Termination block 32 includes a plastic housing 30 surrounding contacts 46. The contacts 46 are characterized by a termination point 28 (in this case, the termination point 28 is an insulation displacement contact (IDC)) and the contact interface 26. The horizontal surface 38 and the vertical surface 36 divide the terminal block 32 inside the opening and the plug housing 24 in the vertical direction and the horizontal direction, respectively. An axis 40 passes through the intersection of planes 36 and 38. The conductor pair of cable 12 terminates at termination point 28. Each interface 26 mates with a corresponding contact 22 at a slot 42. Plug boot 34 provides cable strain relief, cable bend radius control, and keeps end block 32 pushed forward. Plug boot 34 features tooth geometry 100. Plug housing feature 102 mates with boot tooth geometry 100. Multiple teeth increase retention.

  To terminate, strip the cable 12 sheath, curl the 44 pairs of conductors outward, cut the cable 12 cross-web flat (if any), and rotate the termination block 32 to remove the 3-6 IDC from the 3-6 cable. Align with the pair and push cross divider 98 between the cable pairs around the cable cross web to align the appropriate conductors of the stranded pair on the appropriate IDC. Alignment is performed by adding or removing twist and pressing the conductors on the pair separator 96 into the IDC slots. The excess conductor 44 length is cut off to finish the assembly.

  Illustrated in FIG. 4 is a plan view of the plug assembly 20, showing a cross-section line 5-5 through the center line of the contact 22 thickness. In this figure, the plug boot 34 is not shown.

  FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4 and shows the center of the slot 42 height, the contact 26 thickness, the height of the terminal block housing 30, and the plug housing inside the opening height centerline. 2 illustrates a center line 46 disposed on a plane 38 passing through the center line 46.

FIG. 6 illustrates an isometric view of the patch cord 21 in which the plug end is shown in an exploded view. The subscript next to the component ID indicates the corresponding cable end, and the subscript next to the component ID is ANSI / TIA-568-C. 2 represents the RJ45 pin position defined by 2. Cable end A conductors 44 are in a counterclockwise order, with conductors _444A and _445A at the top. Cable end B conductors 44 are in a clockwise order, with conductors _444B and _445B at the bottom.

FIG. 7 illustrates an exploded view of the terminal block 32A. In this end, IDC28 _4A and _{28 5A} is a top, while, IDC28 _3A and _{28 6A} is at the bottom. FIG. 8 is an exploded view of the end block 32B at the end B. In this end, IDC28 _4B and _{28 5B} is at the bottom, on the one hand, IDC28 _3B and _{28 6B} is at the top. End block 32A is rotated 180 degrees about axis 40 to achieve the 32B orientation. Contact 3, which couples to adjacent contacts 1, 2, and 4, is the same as contact 6, which couples to contacts 5, 7, and 8.

  Referring to FIG. 9, an alternative embodiment 50 with termination block 52, termination block housing 54, printed circuit board (PCB) assembly 60, and interface contacts 56 is illustrated. 10 and 11 show PCB assemblies 60A and 60B, respectively. PCB 62 features interface pad 66 and IDC 64. Interface pads 66 are on the top and bottom sides of PCB 62 and provide a redundant connection to contacts 56. A feature of the PCB 62 is that the artwork connection contact 3 that couples with the artwork connection contacts 1, 2, 4 and 5 is the same as the artwork connection contact 6 that couples with the artwork connection contacts 7, 8, 5 and 4. . This allows one termination block design to be able to align 36 pairs, with both ends rotated 180 degrees around axis 40 compared to the other end. become.

  Illustrated in FIGS. 12 and 13 is another embodiment 70 having a termination block 76, PCB 74, termination block housing 80, and interface contacts 72. A feature of the termination block IDC contact PCB interface end 78 is an interference design that slides on the PCB pad to establish a connection. The contacts 72 are made smaller to minimize coupling and coupling variations.

  FIG. 14 illustrates another embodiment 90 having a flexible PCB 94 and smaller interface contacts 92. Smaller interface contact designs have less variability and allow for accurate crosstalk / compensation placement on the PCB near the plug jack mating point outside the signal current path. PCB 94 may be a rigid flex PCB.

15-23 illustrate plug housing 96, PCB 102, plug contacts 98, termination block housing 154, IDC 108, wire manager 112, bottom shell 106, top shell 110, collar 118, color stop 114, and strain. 6 is an alternative embodiment 100 with a relief strap 116. Plug interface contacts 98 are electrically connected to PCB 102. The PCB pad 122 is connected to the corresponding plug contact 98 via a connection wiring. The PCB 102 includes wiring and coupling circuit configurations for adjusting crosstalk and return loss. The PCB circuit configuration is not shown. Termination block 104 is an assembly of termination point (IDC shown in the figure) 108 and termination block housing 154 using mechanical assembly or insert molding or a similar process. The IDC 108 is characterized by an insulating displacement slot geometry at the end of the wire manager interface and wiping contacts 126 at the PCB pad 122 interface (other types of termination points than IDCs and wiping contacts may be used). . Strain relief strap 116 is mechanically and electrically connected to shells 106 and 110. Color stop 114 is connected to top shell 110. The wire manager 112 features a wire pair separator 152. The bottom shell 106, top shell 110, and strain relief collar 118 are formed using a conductive material for the shielded connector. The strain relief strap 116 and the collar stop 114 are formed using a spring material. PCB pads 122 for contact locations 3, 4, 5, and 6 are located on both the top and bottom surfaces of PCB 102. The cable 12 conductors ₁₂₄ 1/124 ₂ by aligning the plug left, when the conductor ₁₂₄ 7/124 ₈ was aligned in the plug right conductor 124 ₃ and 124 ₆ are in either the top or bottom.

For example in FIGS. 16 and 17, a cable 12 ends with a conductor 124 ₃ and 124 ₆ at the bottom. To terminate, the collar 118 is threaded onto the cable 12 and the drain wire 120 is wrapped around the outer skin, and if a braid is present, it is pulled backwards onto the cable outer skin. The cable pair, through inside the wire manager 112, to withdraw on the pair separator, performing the left of the conductor ₁₂₄ 1/124 ₂ and right ₁₂₄ 7/124 ₈ after alignment. Pull the conductors ₁₂₄ 3/124 ₆ and ₁₂₄ 4/124 _5, placed respectively at the bottom and top wires in the slots. The 3 / 6IDC rotate the lead-out blocks to match the conductor ₁₂₄ 3/124 ₆ by pressing on the wire manager to terminate the wire. The termination block interface 126 is pushed on the PCB 102 to form a contact at the PCB pad 122.

It is to illustrate in FIGS. 18 and 19, the conductor 124 ₃ and 124 ₆ are terminated at the other end of the cable 12 at the top.

  Illustrated in FIG. 20 is a plug housing 96 assembled to the bottom shell 106 and top shell 110. Collar 118 includes slots 138 and 142. These slots allow the collar 118 assembly to rest on the shell pads 136 and 140. The bottom shell rail 128 slides into the plug housing slot 132 to place the plug contacts 98 and wire terminations in a fixed position relative to the plug housing 96. A pivot 134 in front of the top shell is retained below the bottom shell fastener 130 at the front end and the crossover cable jacket at the rear end. In this position, the strap 116 extends outward to the left at the bottom and to the right at the top. The top shell features pads 140 and 136 positioned at an 80 degree angle to the collar center axis. The bottom shell also features pads 140 and 136 at 180 degrees to the corresponding pad on the top shell. The collar features slots 138 and 142 that match pads 140 and 136 on the top and bottom shells. To assemble the collar 118, the collar slot 156 is aligned with the strap 116, the pads 136 and 140 are aligned with the slots 138 and 142, and the collar is moved over the pads 136 and 140. When the bottom of the pad is in the axial slot, rotate the collar clockwise to tighten the strap 116 around the cable to the desired load. The collar teeth 146 mate with the collar stop 114 to keep the collar in a rotated position. Pads 136 and 140 are restrained within collar groove 148 to prevent collar 118 from coming off. To re-terminate the plug, press the collar stop 114 away from the teeth 146, rotate the collar counterclockwise until it returns to the loading position, and pull backwards. The relative position of pads 140 and 136 prevents the collar from coming off during rotation at a starting position or some other position other than the 360 degree rotated position. This embodiment uses an 80 degree angle between pads 136 and 140 and a 180 degree angle between corresponding pads on other shells, but any other than an integer that is a multiple of the pad angle between shells. Angle. The collar 118 inside the opening is designed to fit the largest diameter cable with thicker insulation and 22 AWG conductor. The rotation of the collar allows the strap to wrap around the smaller diameter cable to achieve an effective connection with the cable shield and proper strain relief. The size of the IDC has been taken to allow multiple termination cycles while allowing for effective termination to solid and stranded multi-gauge conductors.

  While specific embodiments and applications of the present invention have been shown and described, the present invention is not limited to the precise configuration and composition described herein, and departs from the spirit and scope of the described invention. It should be understood that, without modification, various modifications, changes, and variations may be apparent from the foregoing.

10 communication system 12 communication cable 14 device (patch panel)
18 Jack 20 Plug 22 Contact 24 Plug Housing 26 Contact Interface 28 Termination Point 30 Plastic Housing 32 Termination Block 34 Plug Boot 36 Vertical Plane 38 Horizontal Plane 40 Axis 42 Slot 44 Conductor 44 Pair 44 _4A Conductor 44 _5A Conductor 44 _4B Conductor 44 _5B Conductor 46 Contacts 96 Pair Separator 98 Cross Divider 100 Tooth Geometry 102 Plug Housing Configuration

Claims (6)

A communication plug,
A housing,
At least one strap connected behind the housing;
A cylindrical collar, wherein the cylindrical collar defines a front surface and a back surface, the cylindrical collar having a path extending from the front surface to the back surface, and having a cylindrical collar within a wall of the cylindrical collar. At least one slot extending from the front surface of the at least one strap, the at least one slot configured to engage the at least one strap before the cylindrical collar rotates with respect to the housing. , Said cylindrical collar,
The communication plug including: The cylindrical collar includes a collar groove and at least one pad slot disposed on an inner wall of the cylindrical collar, the collar groove extending in a radial direction, and the at least one pad slot is formed of a cylindrical collar. Extending from the collar groove to the front surface in the insertion direction, the housing has at least one pad disposed behind the housing,
The at least one pad is configured to align the at least one pad slot with the at least one pad and move the cylindrical collar toward the housing in the direction of insertion of the cylindrical collar toward the housing. By mating one pad with the at least one pad slot, and as the cylindrical collar rotates relative to the housing adjacent to the housing, mates the pad slot with the collar groove. The communication plug according to claim 1, wherein the communication plug is configured to be fitted with the at least one pad slot and the collar groove.   The communication plug according to claim 2, including teeth disposed on the front surface of the cylindrical collar, the teeth configured to mate with a collar stop mounted on the rear of the housing.   The collar stop and the teeth are configured to allow the cylindrical collar to rotate in a first direction relative to the housing, but to prevent the cylindrical collar from rotating in a second direction; The communication plug according to claim 3, wherein the direction is opposite to the second direction.   The communication plug according to claim 4, wherein the strap is made of a spring-like material.   The communication plug according to claim 5, wherein the color stop is made of a spring-like material.

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