GB2436898A - Insulation displacement connector block with curved pressure applying surface - Google Patents
Insulation displacement connector block with curved pressure applying surface Download PDFInfo
- Publication number
- GB2436898A GB2436898A GB0606675A GB0606675A GB2436898A GB 2436898 A GB2436898 A GB 2436898A GB 0606675 A GB0606675 A GB 0606675A GB 0606675 A GB0606675 A GB 0606675A GB 2436898 A GB2436898 A GB 2436898A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulation displacement
- connector block
- displacement connector
- terminals
- wires
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
- H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/031—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for multiphase cables, e.g. with contact members penetrating insulation of a plurality of conductors
Abstract
An insulation displacement connector block 1 has one or more pressure applying surfaces 31-33 for sequentially ensuring termination of the individual wires (121-128, Fig. 4) of a twisted pair cable to terminals 2 that are arranged for making electrical connection to insulated wires. The or each pressure applying surface is curved in a direction 1R that the pressure is applied. The arrangement is such that only one wire is terminated at a time (Figs. 5A-5D) so that the pressure required does not exceed that which may be applied by the bare hands of an installer.
Description
2436898
- 1 -
Improvements in and relating to electrical connectors The present invention relates to insulation displacement connectors.
5 Insulation displacement connectors are known for connecting low voltage solid conductor insulated wire to the terminals of sockets. Most insulation displacement connectors require the use of a tool for termination of the wires to the connector, which can be inconvenient, and is slow as normally each wire has to be terminated individually. It is known to produce an insulation displacement connector where the 10 wires are terminated without the use of a separate tool, the connector incorporating means for termination of the wires. However, a problem with known arrangements of such connectors is that high forces are required to achieve satisfactory termination, and hence an installer will resort to using a pair of pliers, for example, to ensure the termination is completed satisfactorily. This negates many of the benefits sought 15 from using a connector incorporating means for termination of the wires.
According to the present invention, there is provided an insulation displacement connector block having means for sequentially ensuring termination of the individual 20 wires of a twisted pair cable to terminals arranged for making electrical connection to insulated wires, wherein the means comprises one or more pressure applying surfaces, and wherein the or each pressure applying surface is curved in a direction that the pressure is applied.
A benefit of the invention is that the pressure required does not exceed that which an 25 installer may comfortably apply with his bare hands.
Preferably the curve is convex where the means presses against the wires.
A benefit of a convex curve is that the wires can slide against the pressure applying surfaces.
30
Preferably the means is arranged to pivot about a pivot axis.
A benefit of the pivot axis is that the means may provide good mechanical advantage
Preferably the curve is in a plane at right angles to the pivot axis.
- 2 -
A benefit of the plane being perpendicular to the pivot axis is that there is no sideways force applied to the connector or the terminations.
Preferably, in a second embodiment of the invention, the pressure applying surface is 5 discontinuous.
A benefit of a discontinuous pressure applying surface, is that the mechanism may be made compact.
Preferably the pressure applying surfaces are parallel to each other.
10 A benefit of parallel surfaces is that the same condition applies along the length of the surface.
Preferably the means when fully pressed down latches to a base.
A benefit of the latch is that it provides a positive indication to the installer that the 15 termination has been completed satisfactorily. A further benefit is that the wires are mechanically trapped in the connector and hence can not come out of engagement.
Preferably at least one set of the terminals is arranged in a plane.
20 A benefit of a the terminals being in a plane is that use of the connector is simplified.
Preferably at least some of the terminals are at different heights relative to each other.
25 A benefit of the terminals being at different heights is that use can be made of the mechanical advantage of the pivoting mechanism to obtain a more even requirement for pressure to complete the termination.
Preferably the different heights of the terminals are arranged so that the terminals 30 form a convex arc facing the convex curved surface.
A benefit of a convex arrangement is that towards the end of the means away from the pivot, the connector may be arranged so that each wire is terminated one at a time. A further benefit is that the terminals are spaced further apart from each other,
- 3 -
hence when the connector is used for high frequencies there is a reduction in crosstalk.
Preferably in an alternative embodiment the terminals are all at the same height.
5 A benefit of the terminals being all at the same height is that manufacturing may be simplified.
Preferably pairs of wire guides are provided on a or the base, the wire guides arranged to locate the wires before the means is operated to terminate the cable.
10 More preferably the wire guides are arranged to separate the wires of a twisted pair of wires so as to guide a single wire to each terminal.
A benefit of wire guides is that satisfactory terminations may be achieved more easily.
Preferably the wire guides further comprise retention means to retain each wire within the wire guide.
A benefit of a retention means is that the wires fitted to the connector do not become dislodged as subsequent wires are fitted in their respective wire guides.
Preferably the axis is perpendicular to the plane.
A benefit of the axis and plane being perpendicular is that construction of the terminal 25 is simplified.
Preferably when the pressure applying surface comprises at least two surfaces, one surface passes to each side of a terminal plane as the means applies pressure.
30 A benefit of the pressure applying surfaces passing to each side of the terminal plane is that the wires may be terminated by a applying a force in a substantially axial direction, co-incident with an axis of the individual insulation displacement terminal.
Specific embodiments of the invention will now be described by way of example with reference to the accompanying drawings in which
Figure 1 is a perspective view of a first embodiment of an electrical connector according to the invention;
Figure 2 is an end view of the electrical connector shown in Figure 1;
Figure 3 is another perspective view of the electrical connector shown in Figure 1;
Figure 4 is a perspective view of a second embodiment of the invention;
Figure 5 is an end view of the second embodiment in the fully open state as shown in Figure 4; and
Figure 5A to Figure 5D are further views of the second embodiment in sequential intermediate states until in Figure 5D the second embodiment is shown with the termination completed.
From Figure 1, a perspective view of a first embodiment of an electrical connector 1 according to the invention is shown. The electrical connector 1 has an insulation displacement connector block 2 having means 3 for sequentially ensuring termination of the individual wires of a twisted pair cable to terminals 11 to 18 inclusive, arranged for making electrical connection to insulated wires, wherein the means comprises three pressure applying surfaces 31, 32 and 33, and wherein the or each pressure applying surface is curved with a radius 1C about an origin 1X (off the sheet showing Figure 2), the curve in a direction 1P 1Q and 1R that the pressure is applied to terminate the wires.
The means is provided with a smooth surface on a side 34 opposite to surfaces 31, 32 and 33 so that the pressure required to operate the means does not exceed that which an installer may comfortably apply with his bare hands or digits.
- 5 -
In Figure 1, it may be seen that the electrical connector is attached to a RJ45 patch panel jack, as an illustration of a possible application that is envisaged for this invention.
5 The surfaces 31,32 and 33 are curved in a convex shape so that where the means presses against the wires in the terminals 11 to 18 the wires can slide against the pressure applying surfaces so as to align themselves with the insulation displacement connectors.
10 The means 3 is arranged to pivot in the direction of arrows 1Q and 1R about a pivot axis 1 A, so that a mechanical advantage may be obtained by application of pressure at an end 5 of the means.
The curved surfaces 31, 32 and 33 lie in three parallel planes which are at right
15 angles to the pivot axis 1A. Hence, when the means is pivoted, there is no sideways force applied to the connector or the terminations.
The means 3 is provided with a resilient latch 6, which when the means has been fully pressed down over the terminals latches to a base 7 of the connector 1 at a
20 detent 8. Hence, an installer can easily verify that the termination has been completed satisfactorily by testing that the means 3 has latched by pulling it in a direction away from the terminals. The latch ensures that the wires are mechanically trapped in the connector and hence can not easily come out of engagement.
25 The terminals 11 to 18 are arranged in two sets 1J and 1K, each set having four terminals which are arranged in a plane along the arrows 1J and 1K, and parallel with a vertical axis 1V of the terminals. Since the terminals lie on a plane that is perpendicular to the axis 1 A, side faces 35 and 36 of the means may closely abut side faces 20 and 21 of terminal support 22.
30
From Figure 2, it can be seen that for set 1K the terminals 11,12,15,and 16 are at heights H11, H12, H15, H16 respectively relative to each other. For set 1J the terminals 13,14,17,and 18 are at heights H13, H14, H17, H18 respectively relative to each other.
35
- 6 -
Preferably pairs of wire guides are provided on a or the base, the wire guides arranged to locate the wires before the means is operated to terminate the cable.
Pillar 71 is positioned between terminals 11 and 12 so as to enable the wires of a twisted pair of wires to be easily separated so as to guide a single wire to each 5 terminal. Once a wire has been guided, for example into terminal 12, a retention means 72 retains the wire within the wire guide so that it is correctly positioned to enter the terminal 12.
From Figure 4, an electrical connector 100 of a second embodiment is shown, with a 10 connector block 102 having means 103 for sequentially ensuring termination of the individual wires 121 to 128 of a twisted pair cable 130 to terminals 111 to 118 inclusive, arranged for making electrical connection to the insulated individual wires 121 to 128, wherein the means 103 comprises two pressure applying surfaces 131 and 132.
15 Means 103 pivots about an axis 100A. Compartments 141 to 148 are provided to contain ends of the wires 121 to 128 respectively so that there is no risk of adjacent wires touching. Lower end 158 of insulation displacement connector 118 is arranged for connection to a circuit board by soldering. Any excess length of the lower end 158 may be trimmed after soldering.
20
The terminals of the second embodiment are all in one plane lying along the axis of the arrows 10V and 10K, and perpendicular to the axis 100A. Latch 106 is provided which engages detent 108 when the means 103 has been fully operated.
25 An end of wire 121 is enclosed by keyhole 161 so that once placed over the insulation displacement connector 111 it is unlikely to move out of a position where operation of the means would ensure its correct termination.
Figure 5 shows the same embodiment 100 as Figure 4, in an open state, where each 30 of the terminals 111 to 118 of connector block 102 are open to receive wires 121 to 128. Each of the insulation displacement connectors 111 to 118 are the same length, and hence it is possible to see easily from the heights of the bottoms of the insulation displacement connectors that they are all set at different levels, and that the terminals are arranged so that the terminals form a convex arc facing the convex curved 35 surface. Initially as pressure is applied to surface 105 in the direction of arrow 10P, the means 103 moves freely in the direction of arrow 10Q. When means 103 has moved to the position shown in Figure 5A, it has started to apply pressure to wire 121 which has commenced entering the terminal 111, and the means is about to contact
- 7 -
wire 122 and hence a force applied to the means by pressure in the direction of arrow 10P will need to increase to cause the means to continue to move to the next state shown by Figure 5B. In Figure 5B, wire 121 has fully entered the insulation displacement connector 111, and hence a force required to move if further down the 5 insulation displacement connector in the direction of arrow is much reduced from the force required on entering the insulation displacement connector. At Figure 5C, the last wire 128 is about to enter the terminal 118, and it can be seen that the other wires have already entered their respective terminals and hence the pressure 10P required to complete the operation is not excessive.
10 When the means 103 is fully operated, the latch 106 engages with the detent in body 107, and an installer can be assured that all the wires have been satisfactorily terminated.
Hence, a benefit of the terminals being at different heights is that use can be made of 15 the mechanical advantage of the pivoting mechanism to obtain a more even requirement for pressure to complete the termination.
- 8 -
Claims (17)
1. An insulation displacement connector block having means for sequentially ensuring termination of the individual wires of a twisted pair cable to terminals 5 arranged for making electrical connection to insulated wires, wherein the means comprises one or more pressure applying surfaces, and wherein the or each pressure applying surface is curved in a direction that the pressure is applied.
2. An insulation displacement connector block as claimed in claim 1, wherein the 10 curve is convex where the means presses against the wires.
3. An insulation displacement connector block as claimed in claim 1 or 2, wherein the means is arranged to pivot about a pivot axis.
»• • • 15
4. An insulation displacement connector block as claimed in claim 3, wherein the curve is in a plane at right angles to the pivot axis.
• •
• • • •
• • •
• • •
• • • *
.. • 20
. • •
• • •
5. An insulation displacement connector block as claimed in any one of the preceding claims, wherein the pressure applying surface is discontinuous.
6. An insulation displacement connector block as claimed in any one of the preceding claims, wherein the pressure applying surfaces are parallel to each other.
7. An insulation displacement connector block as claimed in any one of the 25 preceding claims, wherein the means when fully pressed down latches to a base.
8. An insulation displacement connector block as claimed in any one of the preceding claims, wherein at least one set of the terminals is arranged in a plane.
30
9. An insulation displacement connector block as claimed in any of the preceding claims, wherein at least some of the terminals are at different heights relative to each other.
- 9 -
10. An insulation displacement connector block as claimed in 9 when dependent on claim 2, wherein the different heights of the terminals are arranged so that the terminals form a convex arc facing the convex curved surface.
5
11. An insulation displacement connector block as claimed in any one of the preceding claims from 1 to 8, wherein the terminals are all at the same height.
12. An insulation displacement connector block as claimed in any one of the preceding claims, wherein pairs of wire guides are provided on a or the base, the wire 10 guides arranged to locate the wires before the means is operated to terminate the cable.
• • • • • • •
• • • •
13. An insulation displacement connector block as claimed in claim 12, wherein the wire guides are arranged to separate the wires of a twisted pair of wires so as to 15 guide a single wire to each terminal.
14. An insulation displacement connector block as claimed in claim 12 or 13, wherein the wire guides further comprise retention means to retain each wire within the wire guide.
• • * 20
• • • •
• « ■ » • 1 • • *
15. An insulation displacement connector block as claimed in any of the preceding claims when dependent on claim 3 and claim 8, wherein the axis is perpendicular to the plane.
25
16. An insulation displacement connector block as claimed in claim 15 when the pressure applying surface comprises at least two surfaces, wherein one surface passes to each side of a terminal plane as the means applies pressure.
17. An insulation displacement connector block, substantially as hereinbefore 30 described and with reference to the accompanying drawings.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606675A GB2436898A (en) | 2006-04-03 | 2006-04-03 | Insulation displacement connector block with curved pressure applying surface |
| GB0706508A GB2436955B (en) | 2006-04-03 | 2007-04-03 | Improvements in and relating to electrical connectors |
| PCT/GB2007/001242 WO2007113564A2 (en) | 2006-04-03 | 2007-04-03 | Improvements in and relating to electrical connectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606675A GB2436898A (en) | 2006-04-03 | 2006-04-03 | Insulation displacement connector block with curved pressure applying surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0606675D0 GB0606675D0 (en) | 2006-05-10 |
| GB2436898A true GB2436898A (en) | 2007-10-10 |
Family
ID=36425148
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0606675A Withdrawn GB2436898A (en) | 2006-04-03 | 2006-04-03 | Insulation displacement connector block with curved pressure applying surface |
| GB0706508A Active GB2436955B (en) | 2006-04-03 | 2007-04-03 | Improvements in and relating to electrical connectors |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0706508A Active GB2436955B (en) | 2006-04-03 | 2007-04-03 | Improvements in and relating to electrical connectors |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB2436898A (en) |
| WO (1) | WO2007113564A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2923659A1 (en) * | 2007-11-13 | 2009-05-15 | Legrand France | EASY ASSEMBLY CONNECTOR FOR MULTICONDUCTOR CABLE. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060077A1 (en) * | 2001-06-13 | 2003-03-27 | Harting Kgaa | Connecting arrangement |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816819A (en) * | 1972-10-30 | 1974-06-11 | Gen Electric | Wire connector with wire locating device |
| GB1497494A (en) * | 1975-05-12 | 1978-01-12 | Amp Inc | Electrical connector |
| US4160573A (en) * | 1977-11-21 | 1979-07-10 | Amp Incorporated | Flat cable connector |
| NZ195113A (en) * | 1979-10-26 | 1984-05-31 | Bryant Mfg Pty Ltd | Wire tape connector |
| FR2664433B1 (en) * | 1990-07-04 | 1992-10-09 | Nozick Jacques | SELF-CONDUCTING CONTACT. |
| US6050842A (en) * | 1996-09-27 | 2000-04-18 | The Whitaker Corporation | Electrical connector with paired terminals |
| FR2766018A1 (en) * | 1997-07-11 | 1999-01-15 | Pulse Line Sa | Self-stripping cable connector for low current high data flow multiple conductor cable |
| US6814624B2 (en) * | 2002-11-22 | 2004-11-09 | Adc Telecommunications, Inc. | Telecommunications jack assembly |
| US6830488B2 (en) * | 2003-05-12 | 2004-12-14 | Krone, Inc. | Modular jack with wire management |
-
2006
- 2006-04-03 GB GB0606675A patent/GB2436898A/en not_active Withdrawn
-
2007
- 2007-04-03 GB GB0706508A patent/GB2436955B/en active Active
- 2007-04-03 WO PCT/GB2007/001242 patent/WO2007113564A2/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060077A1 (en) * | 2001-06-13 | 2003-03-27 | Harting Kgaa | Connecting arrangement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2923659A1 (en) * | 2007-11-13 | 2009-05-15 | Legrand France | EASY ASSEMBLY CONNECTOR FOR MULTICONDUCTOR CABLE. |
| EP2061118A1 (en) * | 2007-11-13 | 2009-05-20 | Legrand France | Easy-mounting connector for multicore cable |
| US7758372B2 (en) | 2007-11-13 | 2010-07-20 | Legrand France | Conductor with simplified assembly for multi-conductor cable |
| CN101436741B (en) * | 2007-11-13 | 2012-12-05 | 勒格朗法国公司 | Easy-mounting connector for multicore cable |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0706508D0 (en) | 2007-05-09 |
| WO2007113564A3 (en) | 2007-11-29 |
| GB2436955A (en) | 2007-10-10 |
| GB2436955B (en) | 2010-10-06 |
| GB0606675D0 (en) | 2006-05-10 |
| WO2007113564A2 (en) | 2007-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |