JP6870065B2 - RJ45 plug - Google Patents

Description

The present invention generally relates 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 stipulated that the lower category of CAT5E plugs may have high performance variation while having low electrical performance. The higher bandwidth plugs (CAT6 and CAT6A) are required to have much higher performance as well as much smaller performance variation. For backward compatibility, the permissible performance range of CAT6 and CAT6A plugs is specified as part of the CAT5E plug performance range. The industry is looking for higher bandwidths that should be backwards compatible with CAT5E, CAT6, and CAT6A plugs. The plug is required to have the highest performance in a part of the CAT6 and CAT6A plug performance.

As specified, conductor pairs 3-6 are divided around conductor pairs 4-5. Most plug designs, such as those in US Pat. Nos. 6,811,445 and 5,727,962 (incorporated as a whole by reference herein), have split 3-6 conductor pairs. Terminate at contacts 3 and 6. The division, 3-6 pair division for 4-5 pair division, changes at each end and is the main source of fluctuation for 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, resulting in 3-6 conductors at the top at one end and at the bottom at the other end. is there. Due to the position of the 3-6 conductor pair in the cable, the transition of the 3-6 conductor pair to the 4-5 conductor pair changes from one end of the cable to the other end of the cable, which introduces variation in plug performance. The position of the conductor with respect to the bonded conductor and the length of the bonded conductor affects the 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 is an RJ45 plug characterized by a plug housing having an assembled plug contact, a termination block assembly, and a strain relief boot. The termination block can feature an integrated leadframe contact with 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, allowing for a stable crimping depth. One end of the plug contact may include an interference slot for connecting to the end of the termination block lead frame contact interface. In one embodiment, the plane passing 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 lead frame contact interface end thickness is the same. The IDCs for pairs 1-2 and 7-8 are located on the sides, while the IDCs for pairs 4-5 and 3-6 are located on the top and bottom. The termination block lead frame contacts are designed so that the contacts 3 coupled to contacts 1, 2, 4 and 5 are the same as the contacts 6 coupled to contacts 7, 8, 5 and 4. This allows the termination block to rotate 180 degrees along the cable axis so that the IDC3-6 is on the cable on the same side 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 makes it easier to return the twist of the smallest pair for termination. Push the cross divider under the cable sheath to separate the conductor pairs. The IDC is in a position to minimize the binding between pairs. The coupling required for the desired plug performance is achieved by coupling within a fixed contact that is closer to the plug / jack mating point located outside the signal current path. The IDC is designed to terminate multi-gauge solid or stranded conductors. Both allow for one plug design suitable for different cable designs.
[Appendix 1]
It ’s a communication plug,
With the housing
Eight plug contacts housed inside the front portion of the housing, in a row such that numbers 1 to 8 are numbered from the first side surface of the housing to the second side surface of the housing. With the plug contacts lined up,
A termination block housed inside the housing, the termination block having eight contact interfaces, the eight contact interfaces pointing from a first side surface of the housing to a second side surface of the housing. The termination blocks are arranged in a row so as to be numbered 1 to 8 and electrically connected to the corresponding plug contacts so that the termination block is symmetrical with respect to the axis.
The communication plug including.
[Appendix 2]
The termination block has a termination point electrically connected to each of the contact interfaces so as to form an electrical path, and the termination point and the contact interface are such that the termination block rotates 180 degrees around the axis. The communication plug according to Appendix 1, wherein each of the contact interfaces connected to the plug contacts 1 to 8 is 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 contact interface number, and the coupling from the electric path number 3 to the electric path numbers 1, 2, 4, and 5 is from the electric path number 6 to the electric path numbers 7, 8, and 5. , And the communication plug according to Appendix 2, which are arranged so as to be the same as the coupling 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 those of the termination points for electrical paths 3 and 6. Arranged on the opposite side of the position, the termination point for electrical paths 1 and 2 is located on the first side surface of the termination block, and the termination point for electrical paths 7 and 8 is the termination block. The communication plug according to Appendix 3, which is located on the second side surface of the above.
[Appendix 5]
The communication plug according to Appendix 4, wherein the plug contact includes an interface slot fitted by the contact interface.
[Appendix 6]
The communication plug according to Appendix 3, wherein the plug contact is electrically connected to the contact interface via a circuit board.
[Appendix 7]
The communication plug according to Appendix 1, wherein the termination block includes a wire pair separator.
[Appendix 8]
The communication plug according to Appendix 1, wherein the terminal block includes a cross divider.
[Appendix 9]
It ’s a communication plug,
With the housing
Eight plug contacts housed inside the front portion of the housing, in a row such that numbers 1 to 8 are numbered from the first side surface of the housing to the second side surface of the housing. With the plug contacts lined up,
The termination block housing, which has eight contact interfaces electrically connected to the plug contacts, and the termination block housing.
A wire manager configured to be at least partially inserted into the termination block housing, wherein at least one of the termination block housing and the wire manager is symmetrical about an axis. The communication plug including.
[Appendix 10]
The termination block housing has termination points electrically connected to each of the contact interfaces so as to form an electrical path, and the termination points and the contact interface have the termination block housing 180 around the axis. The communication plug according to Appendix 9, wherein each of the contact interfaces connected to the plug contacts 1 to 8 is arranged so as to be connected to the plug interfaces 8 to 1 when rotated by a degree.
[Appendix 11]
The termination block housing has termination points electrically connected to each of the contact interfaces, and the wire manager has wires held internally to terminate at the termination points of the termination block housing. The wire manager is such that when the wire manager is rotated 180 degrees around the axis, each of the wires electrically connected to the plug interfaces 1 to 8 is connected to the contact interfaces 8 to 1, respectively. The communication plug according to Appendix 9, which is arranged in.
[Appendix 12]
Each of the electrical paths is associated with a contact interface number, and the termination block housing has an electrical path from electrical path number 6 to each of the couplings from electrical path number 3 to electrical path numbers 1, 2, 4 and 5. The communication plug according to Appendix 10, which is arranged so as to be the same as the connection up to the numbers 7, 8, 5, and 4, respectively.
[Appendix 13]
The communication plug according to Appendix 12, wherein the plug contact is electrically connected to the contact interface via a circuit board.
[Appendix 14]
It ’s a communication plug,
With the housing
With at least one strap connected to the rear of the housing
A cylindrical collar, the cylindrical collar defining a front surface and a back surface, the cylindrical collar having a path extending from the front surface to the back surface, and within the wall of the cylindrical collar, the cylindrical collar. It has at least one slot extending from the front surface of the, and the at least one slot is configured to fit into the at least one strap before the cylindrical collar rotates with respect to the housing. , The cylindrical collar and
The communication plug including.
[Appendix 15]
The cylindrical collar comprises a collar groove and at least one pad slot located on the inner wall of the cylindrical collar, the collar groove extends radially and the at least one pad slot is axially said. The housing extends from the collar groove to the front surface and has at least one pad located behind the housing.
The at least one pad causes the at least one pad to move when the at least one pad slot is aligned with the at least one pad and the cylindrical collar is axially moved toward the housing. The at least one by fitting with one pad slot and by fitting the pad slot with the collar groove as the cylindrical collar rotates with respect to the housing adjacent to the housing. The communication plug according to Appendix 14, which is configured to fit into one pad slot and the collar groove.
[Appendix 16]
The communication plug according to Appendix 15, wherein the teeth arranged on the front surface of the cylindrical collar and include the teeth configured to fit with the collar stop attached to the rear of the housing.
[Appendix 17]
The collar stop and the teeth are configured such that the cylindrical collar can rotate in a first direction with respect to the housing, but the cylindrical collar cannot rotate in a second direction. The communication plug according to Appendix 16, wherein the direction is opposite to the second direction.
[Appendix 18]
The communication plug according to Appendix 17, wherein the strap is made of a spring-like material.
[Appendix 19]
The communication plug according to Appendix 18, wherein the color stop is made of a spring-like material.

It is an isometric view of a communication system which may use a high-performance plug. FIG. 5 is an assembly / disassembly isometric view of the first embodiment of a high-performance plug. FIG. 5 is an assembly / disassembly isometric view of the first embodiment of a high-performance plug. It is a top view of the high-performance plug of FIG. It is sectional drawing seen along the line segment 5-5 of FIG. 4 of the high-performance plug of FIG. It is an assembly disassembly isometric view of the patch cord using the high-performance plug of FIG. It is an assembly disassembly isometric view of the termination block with respect to the high-performance plug of FIG. It is an assembly disassembly isometric view of the termination block with respect to the high-performance plug of FIG. It is an assembly disassembly isometric view of the 2nd Embodiment of a high performance plug. FIG. 9 is an isometric view of a PCB assembly to be used with the high performance plug termination block of FIG. FIG. 9 is an isometric view of a PCB assembly to be used with the high performance plug termination block of FIG. It is an assembly disassembly isometric view of the 3rd Embodiment of a high-performance plug. It is an assembly disassembly isometric view of the termination block with respect to the high-performance plug of FIG. FIG. 5 is an assembly / disassembly isometric view of a fourth embodiment of a high-performance plug. FIG. 5 is an assembly / disassembly isometric view of a fifth embodiment of a high-performance plug. Another assembly / disassembly isometric view of the high-performance plug of FIG. 15, with an enlarged view of the block housing, focusing on the termination of the cable with respect to the high-performance plug. FIG. 16 is another assembly / disassembly isometric view of the cable and plug arrangement of FIG. FIG. 15 is an assembled and disassembled isometric view of the high-performance plug of FIG. 15, with an enlarged view of the block housing, paying attention to the end of the cable at the opposite end of the cable of FIG. It is another assembly disassembly isometric view of the cable and plug arrangement of FIG. FIG. 16 is an isometric view of the high performance plug and cable assembly of FIGS. 16-19, showing how the collar is attached to the high performance plug. FIG. 16 is an isometric view of the high performance plug and cable assembly of FIGS. 16-19, showing how the collar is attached to the high performance plug. FIG. 16 is an isometric view of the high performance plug and cable assembly of FIGS. 16-19, showing how the collar is attached to the high performance plug. FIG. 15 is an end view of the high-performance plug of FIG. 15 to which a collar is attached.

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

A plug 20 (including eight contacts 22) is connected to a corresponding stranded pair conductor in cable 12 and mates with a corresponding jack 18 in patch panel 14. Although the jack 18 is shown as a modular jack, it can be a punchdown or other type of jack. Although the CAT6A communication system 10 is shown in FIG. 1, the communication system 10 according to the present invention may be configured to be used in any of the CAT5E, CAT6, CAT6A, CAT7, CAT7A, and CAT8 or other category communication system standards. This is possible with the proper selection of applicable standards-compliant plugs, jacks, cables and equipment.

2 to 8 show the first embodiment of the high performance plug. The plug 20 is shown in an exploded assembly drawing in FIGS. 2 and 3. Assemble the plug housing 24 with the contacts 22. The contact 22 features a slot 42. The termination block 32 includes a plastic housing 30 that surrounds the contacts 46. The contact 46 features a termination point 28 (in this case, the termination point 28 is an insulating displacement contact (IDC)) and a contact interface 26. The horizontal plane 38 and the vertical plane 36 divide the termination block 32 inside the opening and the plug housing 24 in the vertical direction and the horizontal direction, respectively. The shaft 40 passes through the intersection of planes 36 and 38. The conductor pair of the cable 12 is terminated at the termination point 28. The individual interfaces 26 fit into the corresponding contacts 22 in slot 42. The plug boot 34 provides cable strain relief, cable bend radius control, and keeps the termination block 32 pushed forward. The plug boot 34 features a tooth geometry 100. The plug housing feature 102 fits into the boot tooth geometry 100. Holding power increases when there are multiple teeth.

To terminate, peel the cable 12 skin, bend the conductor 44 pairs outward, cut the cable 12 crossweb flat (if any), rotate the termination block 32 to 3-6 IDC 3-6 cable. Align with the pair and push the 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 twisting or removing and pushing the conductor onto the pair separator 96 into the IDC slot. The excess conductor 44 length is cut to finish the assembly.

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

FIG. 5 is a cross-sectional view taken with respect to line 5-5 of FIG. 4, the center of the slot 42 height, the contact 26 thickness, the end block housing 30 height, and the plug housing inside the opening height center line. An example is a center line 46 arranged on a plane 38 passing through 24.

FIG. 6 illustrates an isometric view of the patch cord 21 in which the end of the plug is shown in an exploded assembly drawing. The subscript next to the component ID indicates the corresponding cable end, and the subscript number next to the component ID is ANSI / TIA-568-C. Represents the RJ45 pin position defined by 2. Cable end A conductors 44 are in counterclockwise order, with conductors 44 _4A and _{445 A} at the top. Cable end B conductors 44 are in clockwise order, with conductors 44 _4B and 445 _B at the bottom.

An exploded view of the terminal block 32A is illustrated in FIG. In this end, IDC28 _4A and _{28 5A} is a top, while, IDC28 _3A and _{28 6A} is at the bottom. An example of FIG. 8 is an exploded view of the terminal block 32B of the end portion 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. Rotate the termination block 32A 180 degrees around the axis 40 to achieve 32B orientation. The contact 3 that couples with the adjacent contacts 1, 2, and 4 is the same as the contact 6 that couples with contacts 5, 7, and 8.

With reference to FIG. 9, an alternative embodiment 50 with a termination block 52, a termination block housing 54, a printed circuit board (PCB) assembly 60, and an interface contact 56 is illustrated. 10 and 11 show PCB assemblies 60A and 60B, respectively. The PCB 62 features an interface pad 66 and an IDC 64. The interface pads 66 are on the top and bottom sides of the PCB 62 and provide redundant connections with the contacts 56. The feature of PCB62 is that the artwork connection contact 3 that connects with the artwork connection contacts 1, 2, 4 and 5 is the same as the artwork connection contact 6 that connects with the artwork connection contacts 7, 8, 5 and 4. .. This allows for one termination block design that can be used for both cable ends with the ends rotated 180 degrees relative to the other end around the shaft 40 to align 36 pairs. become.

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

Illustrated in FIG. 14 is another embodiment 90 having a flexible PCB 94 and a smaller interface contact 92. The smaller the interface contact design, the smaller the variation and the more accurate crosstalk / compensation placement on the PCB near the plug jack mating point outside the signal current path. The PCB 94 can be a rigid flex PCB.

Examples in FIGS. 15-23 are plug housing 96, PCB 102, plug contact 98, termination block housing 154, IDC 108, wire manager 112, bottom shell 106, top shell 110, collar 118, color stop 114, and strain. An alternative embodiment 100 with a relief strap 116. The plug interface contact 98 is electrically connected to the PCB 102. The PCB pad 122 is connected to the corresponding plug contact 98 via a connecting wire. The PCB 102 includes wiring and coupling circuit configurations for crosstalk and return loss adjustment. The PCB circuit configuration is not shown. Termination block 104 is an assembly of termination point (IDC is shown in the figure) 108 and termination block housing 154 using mechanical assembly or insert molding or a similar process. IDC108 features an insulated displacement slot geometry at the end of the wire manager interface and a wiping contact 126 at the PCB pad 122 interface (other types of termination points other than the IDC and wiping contacts may be used). .. The strain relief strap 116 is mechanically and electrically connected to the shells 106 and 110. The color stop 114 is connected to the 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 with 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 positions 3, 4, 5, and 6 are located on both the top and bottom surfaces of the 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 screwed onto the cable 12, the drain wire 120 is wrapped around the skin, and the braid, if present, is pulled back onto the cable 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 terminating block interface 126 is pushed onto the PCB 102 to form contacts on 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 with respect to the bottom shell 106 and the top shell 110. Color 118 includes slots 138 and 142. These slots allow the collar 118 assembly to be placed on the shell pads 136 and 140. The bottom shell rail 128 slides into the plug housing slot 132 to position the plug contacts 98 and wire terminations in fixed positions with respect to the plug housing 96. A pivot 134 in front of the top shell is held underneath the bottom shell fastener 130 at the front end and the crossover cable skin 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 arranged at an angle of 80 degrees with respect to the color center axis. The bottom shell also features pads 140 and 136 at 180 degrees to the corresponding pads on the top shell. The collar features slots 138 and 142 matching 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 onto the pads 136 and 140. When the bottom of the pad comes out of the axial slot, rotate the collar clockwise to tighten the strap 116 around the cable to the desired load. The collar teeth 146 fit with the collar stop 114 to keep the collar in the rotating position. The pads 136 and 140 are constrained in the collar groove 148 to prevent the collar 118 from coming off. To reterminate the plug, the collar stop 114 is pressed away from the teeth 146, rotating the collar counterclockwise until it returns to the loading position and pulling backwards. The relative positions of the pads 140 and 136 prevent the collar from coming off during rotation at any other position than the starting position or the 360 degree rotation position. In this embodiment, an angle of 80 degrees between the pads 136 and 140 and an angle of 180 degrees between the corresponding pads on the other shells are used, but any other than an integer that is a multiple of the pad angles between the shells. Can be the angle of. The collar 118 inside the opening is designed to fit a maximum diameter cable with thicker insulation and a 22 AWG conductor. The rotation of the collar allows the strap to wrap around a smaller diameter cable for effective coupling with the cable shield and proper strain relief. The size of the IDC is taken to allow multiple retermination cycles while allowing effective termination for solid and twisted multi-gauge conductors.

Although specific embodiments and applications of the invention are illustrated and described, the invention is not limited to the exact configurations and compositions described herein and deviates from the spirit and scope of the invention described. It should be understood that various modifications, changes, and modifications can be apparent from the above without doing so.

10 Communication system 12 Communication cable 14 Equipment (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 Surface 38 Horizontal Plane 40 Axis 42 Slot 44 Conductor 44 Pair 44 _4A Conductor 44 _5A Conductor 44 _4B Conductor 44 _5B Conductor 46 Contact 96 Pair Separator 98 Cross Divider 100 Tooth Geometry 102 Plug Housing Feature

Claims (5)

It ’s a communication plug,
With the housing
With at least one strap connected to the rear of the housing
A cylindrical collar, the cylindrical collar defining a front surface and a back surface, the cylindrical collar having a path extending from the front surface to the back surface, and within the wall of the cylindrical collar, the cylindrical collar. It has at least one slot extending from the front surface of the, and the at least one slot is configured to fit into the at least one strap before the cylindrical collar rotates with respect to the housing. , The cylindrical collar and
In the communication plug comprising,
The cylindrical collar comprises a collar groove and at least one pad slot located on the inner wall of the cylindrical collar, the collar groove extends radially and the at least one pad slot is of a cylindrical collar. Extending from the collar groove to the front surface in the insertion direction, the housing has at least one pad located behind the housing.
The at least one pad is the at least when the at least one pad slot is aligned with the at least one pad and the cylindrical collar is moved toward the housing in the insertion direction of the cylindrical collar. Fitting the pad with the collar groove by fitting one pad with the at least one pad slot and when the cylindrical collar rotates with respect to the housing adjacent to the housing. A communication plug configured to fit the at least one pad slot and the collar groove . The communication plug according to claim 1 , wherein the teeth arranged on the front surface of the cylindrical collar and including the teeth configured to fit with the collar stop attached to the rear of the housing. The collar stop and the teeth are configured such that the cylindrical collar can rotate in a first direction with respect to the housing, but the cylindrical collar cannot rotate in a second direction. communication plug of claim 2 direction which is opposite to the second direction. The communication plug according to claim 3 , wherein the strap is made of a spring-like material. The communication plug according to claim 4 , wherein the color stop is made of a spring-like material.

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