WO2020018603A1 - Connecteur coaxial ayant un anneau de compression de rupture et élément de couple - Google Patents

Connecteur coaxial ayant un anneau de compression de rupture et élément de couple Download PDF

Info

Publication number
WO2020018603A1
WO2020018603A1 PCT/US2019/042093 US2019042093W WO2020018603A1 WO 2020018603 A1 WO2020018603 A1 WO 2020018603A1 US 2019042093 W US2019042093 W US 2019042093W WO 2020018603 A1 WO2020018603 A1 WO 2020018603A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
compression ring
coupler
tabs
torque
Prior art date
Application number
PCT/US2019/042093
Other languages
English (en)
Inventor
Harold J. WATKINS
Richard MARONEY
Steve Stankovski
Chris SHYNE
Amos MCKINNON
Original Assignee
Ppc Broadband, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ppc Broadband, Inc. filed Critical Ppc Broadband, Inc.
Priority to CN201980059903.8A priority Critical patent/CN112840512B/zh
Priority to MX2021000696A priority patent/MX2021000696A/es
Publication of WO2020018603A1 publication Critical patent/WO2020018603A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • 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
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present disclosure relates generally to connectors for terminating coaxial cable. More particularly, the present disclosure relates to a coaxial cable connector having a torque-limiting compression ring that does not require a compression tool for installation and that breaks away from the connector body for use as a torque member.
  • Conventional coaxial cables typically include a center conductor surrounded by an insulator.
  • a braided or foil conductive shield is disposed over the insulator.
  • An outer insulative jacket surrounds the shield.
  • the outer jacket is stripped back exposing an extent of the conductive shield which is folded back over the jacket.
  • a portion of the insulator extends outwardly from the jacket and an extent of the center conductor extends outwardly from insulator.
  • Such a prepared cable may be terminated in a conventional coaxial connector.
  • Coaxial connectors of this type include a connector body having an inner cylindrical post which is inserted between the insulator and the conductive shield. A compression ring is provided to secure the cable within the body of the coaxial connector.
  • the compression ring which is typically formed of a resilient plastic, is securable to the connector body to secure the coaxial connector thereto.
  • Conventional connectors of this type require a compression tool for installation. Thus, installers need to carry these compression tools into the field and, if the compression tool breaks or is misplaced, the conventional connectors cannot be assembled to a coaxial cable.
  • some conventional compression tools may not be configured to ensure that the compression ring provides a desired amount of compression to the coaxial cable.
  • use of such conventional compression tools may result in a connector that is assembled to a coaxial cable with insufficient compression, which could lead to the connector becoming loosened from the cable, thus resulting in a degraded signal or signal loss.
  • use of such conventional compression tools may result in a connector that is assembled to a coaxial cable with too much compression, which could damage the cable, thus resulting in a degraded signal or signal loss.
  • is may be desirable to provide a coaxial connector that can be assembled to a coaxial cable without the use of a compression tool.
  • coaxial connector that can be assembled to a coaxial cable with a desired amount of compression. It may be further desirable to provide a coaxial connector that includes a breakaway ring that can be used to apply torque to the connector when tightening the connector to an interface port.
  • the body includes a rearward portion for accommodating a coaxial cable and a forward portion for coupling with the outer conductor engager, and the outer conductor engager is configured to couple the body with the coupler such that the coupler is rotatingly coupled relative to the body and the outer conductor engager.
  • the torque-limiting compression ring includes a generally cylindrical forward sleeve portion and a rearward outer ring portion, and the rearward outer ring portion is attached to the forward sleeve portion by a plurality of tabs that taper in a radially outward direction.
  • the torque-limiting compression ring is configured to be rotated relative to the body, and such relative rotation moves the torque-limiting compression ring axially relative to the body and compresses a cable between an inner surface of the torque-limiting compression ring and an outer surface of the outer conductor engager.
  • the plurality of tabs are configured to shear when a desired torque is met as the torque-limiting compression ring is rotated relative to the body such that the outer ring portion becomes separated from the forward sleeve portion, the rearward outer ring portion includes an inner opening when separated from the forward sleeve portion, the separated rearward outer ring is configured to be slidingly moved relative to the body and the coupler, and the inner opening is configured to fit over the coupler such that the rearward outer ring is configured to be a torque assist member.
  • a material of the tabs, the tapering of the tabs, and/or strengthening members at a radially outer portion of the tabs facilitate breakage of the tabs at a radially inner portion of the tabs that connects to the forward sleeve portion.
  • the inner opening has a shape that matches a shape of an outer surface of the coupler.
  • a connector includes a body having a cable receiving end configured to receive the end of the coaxial cable, a coupler configured to be coupled with and to rotate relative to the body, and a compression ring including a forward sleeve portion and a rearward outer ring portion attached to one another by a plurality of tabs.
  • the forward sleeve portion is configured to be coupled to the cable receiving end of the body, and the plurality of tabs are configured to shear so as to separate the rearward outer ring portion from the forward sleeve portion when a torque for rotating the compression ring relative to the body exceeds a desired torque.
  • the rearward outer ring includes an inner opening when separated from the forward sleeve portion, the separated rearward outer ring is configured to be slidingly moved relative to the body and the coupler, and the inner opening is configured to fit over the coupler such that the rearward outer ring is configured to be a torque assist member.
  • the outer ring portion includes one or more torque assisting structures.
  • the compression ring is formed of a material selected such that each of the plurality of tabs will shear at a radially inner portion of each of the tabs that connects to the forward sleeve portion when the desired torque is met.
  • each of the tabs includes a strengthening member at its radially outer portion.
  • the strengthening members being configured to facilitate breakage of the tabs at a radially inner portion of each of the tabs that connects to the forward sleeve portion.
  • body includes at least one stop configured to prevent the compression ring from being overtightened to the body.
  • an outer surface of the forward sleeve portion of the compression ring includes a threaded portion that is configured to be threadedly coupled with a threaded portion of an inner surface of the body.
  • the threaded portions allow for detachable, re-attachable connection of the compression ring to the body.
  • the compression ring is configured to move axially toward a coupler at a forward end of the connector as the compression ring is rotated clockwise relative to the body.
  • the compression ring is configured to move axially from a first position, which loosely retains a coaxial cable within the body, to a more forward second position, which secures the cable within the body, as the compression ring is rotated clockwise relative to the body.
  • the coupler is configured to provide mechanical attachment of the connector to an interface port of an external device.
  • the connector further includes a resilient sealing O-ring positioned between the body and the coupler at the rotatable juncture thereof to provide a seal thereat.
  • the connector further includes an outer conductor engager.
  • the body includes a forward portion for coupling with the outer conductor engager, and the outer conductor engager is configured to couple the body with the coupler such that the coupler is rotatingly coupled relative to the body and the outer conductor engager.
  • the connector further includes a sealing gasket disposed at a forward end of the outer conductor engager to provide a weather tight seal between the coupler, the outer conductor engager, and the interface port.
  • the inner opening has a shape that matches a shape of an outer surface of the coupler.
  • the plurality of tabs taper in a radially outward direction.
  • the present disclosure provides a method for attaching a connector to an interface port including inserting a coaxial cable through a rearward end of a compression ring and into a body of the connector, moving the torque- limiting compression ring relative to the body from a first position loosely retaining the cable to a second position which is axially forward, thereby locking the cable to the body, rotating the torque-limiting compression ring relative to the body until a plurality of tabs that attach a rearward outer ring portion of the compression ring with a forward sleeve portion of the compression ring shear so that the outer ring portion becomes separated from the forward sleeve portion, moving the outer ring portion axially forward relative to the body and over a coupler, coupling the coupler with an interface port, and using the outer ring portion as a torque assist member to tighten the coupler to the interface port.
  • the method further includes, before the inserting step, detaching the compression ring from the body, placing the compression ring around the coaxial cable, inserting the coaxial cable into the rearward end of the body while the compression ring is detached, and reattaching the compression ring to the rearward end of the body.
  • FIG. 1 is an exploded perspective view of an exemplary coaxial connector in accordance with various aspects of the present disclosure.
  • FIG. 2 is a side cross-sectional view of the exemplary coaxial connector of
  • FIG. 3 is a side view of the exemplary coaxial connector of FIG. 1.
  • FIG. 4 is a side cross-sectional view of the exemplary coaxial connector of FIG. 1 with a coaxial cable.
  • FIG. 5 is a front view of the exemplary coaxial connector of FIG. 1.
  • FIG. 6 is a rear view of the exemplary coaxial connector of FIG. 1.
  • FIG. 7 is a side view of the compression ring of the exemplary coaxial connector of FIG. 1.
  • FIG. 8 is a side view of another exemplary coaxial connector in a first configuration in accordance with various aspects of the present disclosure.
  • FIG. 9 is a front view of the exemplary coaxial connector of FIG. 8.
  • FIG. 10 is a side view of the exemplary coaxial connection of FIG. 8 in a second configuration.
  • FIG. 11 is a perspective view of the exemplary coaxial connection of FIG. 8 in the second configuration.
  • FIGS. 1-6 illustrate an exemplary coaxial cable connector 10 in accordance with various aspects of the present disclosure.
  • the connector 10 includes a body 12, a torque-limiting compression ring 14, a coupler 18 such as an annular nut, and an outer conductor engager or annular post 20.
  • the body 12 is an elongate, generally cylindrical conductive member, which may be made, for example, of a metal such as, but not limited to, brass.
  • the body 12 includes a rearward portion 16 for accommodating a coaxial cable and a forward portion 15 for coupling with the post 20.
  • the post 20 couples the forward portion 15 of the body 12 with the coupler 18 such that the coupler 18 is rotatingly coupled to the body 12 and the post 20 to provide mechanical attachment of the connector 10 to an interface port 99 of an external device.
  • the post 20 may include a rearward-facing shoulder 21 that cooperates with a forward-facing shoulder 19 of the coupler 18 to provide the rotatable coupling.
  • a resilient sealing O-ring 22 may be positioned between the body 12 and the coupler 20 at the rotatable juncture thereof to provide a seal thereat.
  • a sealing gasket 77 may be disposed at the forward end of the post 20 to provide a weather tight seal between the coupler 18, the post 20, and the interface port.
  • the rearward portion 16 of the body 12 includes a cable receiving end 24 for insertably receiving an inserted coaxial cable.
  • the coupler 18 includes an internally threaded end 26 permitting screw threaded attachment of the connector 10 to the interface port 99 of an external device.
  • the cable receiving end 24 is at a rearward end of the rearward portion 16 of the body 12, and the internally threaded end 26 is at a forward end of the coupler 18.
  • the post 20 includes a base portion 28 which provides for securement of the coupler 18 between the body 12 and the post 20 and an annular tubular extension 30 extending rearward from the base portion 28 into the body 12.
  • an inner surface 40 of the forward portion 15 of the body 12 may include a retention structure 42, for example, a radial inward protrusion, that is mechanically coupled with a retention structure 52, for example, a notch of the outer surface 50 of the annular tubular extension 30 of the post 20.
  • the retention structures 42, 52 may extend about the entire circumference or a portion of the circumference of the body and the tubular extension, respectively.
  • retention structures 42, 52 may be reversed in some embodiments such that retention structure 42 is a notch and retention structure 52 is a protrusion.
  • the extension 30 of the post 20 and the rearward portion 16 of the body 12 define an annular opening 32 for accommodating the jacket and shield of the inserted coaxial cable.
  • the torque-limiting compression ring 14 includes a generally cylindrical forward sleeve portion 33 and a rearward outer ring portion 35.
  • the rearward outer ring portion 35 is attached to the forward sleeve portion 33 by a plurality of tabs or fingers 38 that taper in the radially inward direction.
  • the outer ring portion 35 may include one or more torque assisting structures 88.
  • the compression ring 14 is formed of a material selected such that the plurality of tabs 38 will shear when a desired torque is met during installation, as described in more detail below.
  • each of the tabs 38 may include a strengthening member 39 at its radially outer portion 60.
  • the body 12 includes a first stop 17 at the rearward end of the rearward portion 16 and a second stop 19 formed by a shoulder extending radially inward from an inner surface 13 of the rearward portion 12. The first and second stops 17, 19 prevent the compression ring 14 from being overtightened to the body 12.
  • the forward sleeve portion 33 has a flared rearward end 34 through which a cable may be inserted and an opposite forward end 36 which is insertable into the cable receiving end 24 of the body 12.
  • An outer surface 64 of the forward end 36 of the compression ring 14 includes a threaded portion 66 that is threadedly coupled with a threaded portion 68 of the inner surface 13 of the rearward portion 16 of the body 12.
  • the threaded portions 66, 68 allow for detachable, re-attachable connection of the compression ring 14 to the body 12.
  • the compression ring 14 is axially moved along a direction of arrow A of FIG. 2, towards the coupler 18 from a first position shown in FIGS. 2 and 4, which loosely retains the coaxial cable within the body 12 to a more forward second position shown in FIG. 3, which secures the cable within the body 12.
  • connector 10 in terminating a coaxial cable may now be described with respect to FIG. 4.
  • the coaxial cable 90 includes an elongate inner conductor 92 formed of copper or similar conductive material. Extending around the inner conductor 92 is a conductor insulator 94 formed of a suitably insulative plastic. A metallic shield 96 is positioned in surrounding relationship around the insulator 94. In some aspects, the shield 96 is a metallic braid, however, other conductive materials such as metallic foil may also be employed. Covering the shield 96 is an outer insulative jacket 98.
  • Cable 90 is prepared in conventional fashion for termination, by stripping back the jacket 98 exposing an extent of the shield 96. A portion of insulator 94 extends therefrom with an extent of the conductor 92 extending from the insulator 94. The preparation process includes folding back an end extent of the shield 96 about the jacket 98. As shown in exploded view in FIG. 4, the cable 90 may be inserted into the connector 10 with the compression ring 14 coupled to the body 12 as shown in FIGS. 2 and 4. In this technique, the prepared cable 90 is inserted through the outer ring portion 35, through the rearward end 34 of the forward sleeve portion 33, and into the receiving end 24 of the body 12.
  • the extension 30 of the post 20 is inserted between the insulator 94 in the metallic shield 96 such that the shield 96 and the jacket 98 reside within the annular region 32 defined between the post 20 and the rearward portion 16 of the body 12.
  • the compression ring 14 is coupled to body in the first position shown in FIGS. 2 and 4. In such first position, sufficient clearance is provided between the compression ring 14 and the post 20 so that the extension 30 may easily be interposed between the insulator 94 and the shield 96.
  • the threaded portion 66 of the compression ring 14 is threadedly coupled with the threaded portion 68 of the body 12, and the compression ring 14 is rotated clockwise relative to the body 12 such that the
  • compression ring 14 moves axially in the direction of arrow A toward the coupler 18.
  • a radially-inward protruding portion 80 of the forward sleeve portion 33 of the compression ring 14 moves axially over a barbed portion 82 at a rearward end of the extension 30 of the post 20
  • the forward sleeve portion 33 compresses the folded back metallic shield 96 and jacket 98 of the cable 90 against the extension 30 of the post 20.
  • the torque required to continue rotation of the compression ring 14 relative to the body 12 increases.
  • the material of the tabs 38, the tapering of the tabs 38, and/or the strengthening members 39 facilitate breakage of the tabs 38 at the radially inner portion 62 of the tabs 38 that connects to the forward sleeve portion 33 as further torque is applied to the outer ring portion 35 of the compression ring 14.
  • the further torque will cause the tabs 38 to shear such that the outer ring portion 35 becomes separated from the forward sleeve portion 33.
  • the outer ring portion 35 can then be moved rearward along the cable 90 in a direction away from the coupler 18 (opposite to arrow A). At this point, the installer can couple a tightening tool to the connector 10 to tighten the coupler 18 to an interface port.
  • FIGS. 8-11 illustrate another exemplary coaxial cable connector 110 in accordance with various aspects of the present disclosure.
  • the connector 110 includes a body 12, a torque-limiting compression ring 114, a coupler 18 such as an annular nut, and an outer conductor engager or annular post 20.
  • the torque-limiting compression ring 114 includes a generally cylindrical forward sleeve portion 133 and a rearward outer ring portion 135.
  • the rearward outer ring portion 135 is attached to the forward sleeve portion 133 by a plurality of tabs or fingers 138 that taper in the radially outward direction (i.e., opposite that illustrated in FIG. 2).
  • the outer ring portion 135 may include one or more torque assisting structures 188.
  • the compression ring 114 is formed of a material selected such that the plurality of tabs 138 will shear when a desired torque is met during installation, as described above in connection with the embodiment shown in FIGS. 1-7.
  • the tapering of the tabs 138 facilitate breakage of the tabs 138 at a radially outer portion 162 of the tabs 138 that connects to the forward sleeve portion 133.
  • An outer surface 164 of the forward end 136 of the compression ring 114 includes a threaded portion 166 that is threadedly coupled with a threaded portion 68 of the inner surface 13 of the rearward portion 16 of the body 12.
  • the threaded portions 166, 68 allow for detachable, re-attachable connection of the compression ring 114 to the body 12.
  • the compression ring 114 is rotated clockwise relative to the body 12, the compression ring 114 is axially moveable along arrow A of FIGS. 2 and 8, towards the coupler 18 from a first position shown in FIGS. 2 and 8, which loosely retains the coaxial cable within the body 12 to a more forward second position shown in FIG. 3, which secures the cable within the body 12
  • the outer ring portion 135 and tabs of the compression ring 114 may be structured and arranged such that when the tabs shear to separate the outer ring portion 135 from the forward sleeve portion 133, the resultant inner opening 170 is sized to fit over the connector body 12 and onto the coupler 18, and the compression ring 114 can be moved in the direction A to a position about the coupler 18.
  • the inner surface 172 of the sheared-off outer ring portion 135 may have a hexagonal shape that is complementary to the shape of the coupler 18 and the inner opening 170 is sized relative to the coupler 18 such that the outer ring portion 135 can be used as a torque assist member to tighten the coupler 18 to an interface port.
  • the connectors 10, 110 of the present disclosure may be constructed so as to be supplied in the assembled condition shown in FIGS. 1, 3, and 8.
  • a coaxial cable may be inserted through the rearward end 34, 134 of the forward sleeve portion 33, 133 of the compression ring 14, 114 and into the body 12.
  • compression ring 14, 114 may be moved from the first position loosely retaining the cable to the second position which is axially forward thereby locking the cable to the body 12. It is, however, contemplated that, in some aspects, the compression ring 14, 114 may be detached from the body 12 and placed around the coaxial cable, so as to allow the coaxial cable to be inserted directly into the cable receiving end 24 of the body 12. Thereafter, the compression ring 14, 114 which has been placed around the cable may be reattached to the cable receiving end 24 of the body 12 where it can be moved from the first position to the second position locking the cable to the connector body.
  • the threaded portions 66, 166, 68 mentioned above are employed to provide such detachment and reattachment of the compression ring 14, 114 to the body 12.
  • the connectors 10, 110 may be supplied in an unassembled condition (not shown) where the compression ring 14, 114 is separated from the body 12.
  • Additional embodiments include any one of the embodiments described above, where one or more of its components, functionalities or structures is interchanged with, replaced by or augmented by one or more of the components, functionalities, or structures of a different embodiment described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur comprenant un corps ayant une extrémité de réception de câble configurée pour recevoir l'extrémité du câble coaxial, un coupleur configuré pour être couplé avec le corps et tourner par rapport au corps, et un anneau de compression comprenant une partie de manchon avant et une partie d'anneau extérieure arrière attachées l'une à l'autre par une pluralité de languettes. La partie de manchon avant est configurée pour être couplée à l'extrémité de réception de câble du corps, et la pluralité de languettes sont configurées pour se cisailler de façon à séparer la partie d'anneau extérieure arrière de la partie de manchon avant lorsqu'un couple pour faire tourner l'anneau de compression par rapport au corps dépasse un couple souhaité. L'anneau extérieur arrière comprend une ouverture intérieure lorsqu'il est séparé de la partie de manchon avant, l'anneau extérieur arrière séparé est configuré pour être déplacé de manière coulissante par rapport au corps et au coupleur, et l'ouverture interne est configurée pour s'ajuster sur le coupleur de telle sorte que l'ouverture externe arrière est configurée pour être un élément d'assistance de couple.
PCT/US2019/042093 2018-07-16 2019-07-16 Connecteur coaxial ayant un anneau de compression de rupture et élément de couple WO2020018603A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980059903.8A CN112840512B (zh) 2018-07-16 2019-07-16 具有断裂压缩环状物和扭矩构件的同轴连接器
MX2021000696A MX2021000696A (es) 2018-07-16 2019-07-16 Conector coaxial que tiene un anillo de compresión de separación y un miembro de torque.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862698344P 2018-07-16 2018-07-16
US62/698,344 2018-07-16

Publications (1)

Publication Number Publication Date
WO2020018603A1 true WO2020018603A1 (fr) 2020-01-23

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ID=69165071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/042093 WO2020018603A1 (fr) 2018-07-16 2019-07-16 Connecteur coaxial ayant un anneau de compression de rupture et élément de couple

Country Status (3)

Country Link
CN (1) CN112840512B (fr)
MX (1) MX2021000696A (fr)
WO (1) WO2020018603A1 (fr)

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CN112466543A (zh) * 2020-11-23 2021-03-09 江苏亨通线缆科技有限公司 一种轨道交通用b1级高阻燃控制电缆

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MX2021000696A (es) 2021-05-27
CN112840512A (zh) 2021-05-25
CN112840512B (zh) 2023-05-09

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