Coaxial cable connector with integrated grounding member
11018463 · 2021-05-25
Assignee
Inventors
- Harold Watkins (Chittenango, NY, US)
- Richard Maroney (Alexandria, VA, US)
- Steve Stankovski (Clay, NY, US)
Cpc classification
H01R9/0524
ELECTRICITY
International classification
Abstract
A coaxial cable connector includes a nut; and a connector body coupled with the nut, the connector body including a plurality of inner fingers 122 separated from each other by a plurality of gaps 124, wherein the inner fingers 122 extend from a forward end of the connector body 116 in a forward direction and biased radially outwardly to provide sufficient electrical contact with the nut 112 when inserted within the end of the nut 112.
Claims
1. A coaxial cable electrical connector, comprising: a nut having a threaded forward end and a rearward end; a post coupled with the nut such that the nut is configured to rotate relative to the post; a connector body coupled with the nut and the post, the connector body having a forward end and a rearward end in an axial direction; and a connection sleeve slidingly coupled with the connector body, wherein the connector body includes a plurality of axially extending fingers extending in a forward direction at the forward end of the connector body, the plurality of axially extending fingers being separated by gaps at the forward end of the connector body; wherein the post includes a main body portion having a radially outward facing surface and a flange portion forward of the main body portion, the flange portion extending radially outward relative to the main body portion; wherein the nut includes a main body portion having a radially inward facing surface and a lip portion forward of the main body portion of the nut, the lip portion extending radially inward relative to the main body portion of the nut; the plurality of axially extending fingers are configured to physically and electrically contact the radially inward facing surface of the main body portion of the nut and the radially outward facing surface of the main body portion of the post; wherein the plurality of axially extending fingers are configured to be biased radially outward by the radially outward facing surface of the main body portion of the post into contact with the radially inward facing surface of the main body portion of the nut; wherein the post is configured to physically and electrically contact an outer conductor of a coaxial cable; wherein the plurality of axially extending fingers are configured to provide an electrical grounding path between the post and the nut; and wherein the connector body is a single monolithic structure, and the plurality of axially extending fingers are a portion of the single monolithic structure.
2. The coaxial cable electrical connector of claim 1, wherein the compression sleeve is configured to be radially compressed onto a coaxial cable by sliding movement of the compression sleeve relative to the connector body.
3. The coaxial cable electrical connector of claim 1, wherein the flange portion includes a rearward facing surface configured to engage the plurality of axially extending fingers.
4. The coaxial cable electrical connector of claim 1, wherein the post includes a second flange portion forward of the flange portion, the second flange portion extending radially outward relative to the flange portion; and wherein the second flange portion includes a rearward facing surface configured to engage a forward facing surface of the lip portion of the nut.
5. A coaxial cable electrical connector, comprising: a nut having a forward end and a rearward end; a post coupled with the nut such that the nut is configured to rotate relative to the post; and a connector body coupled with the nut and the post, the connector body having a forward end and a rearward end in an axial direction, wherein the connector body includes a plurality of axially extending fingers extending in a forward direction at the forward end of the connector body, the plurality of axially extending fingers being separated by gaps at the forward end of the connector body; wherein the plurality of axially extending fingers are configured to physically and electrically contact a radially inward facing surface of the nut and a radially outward facing surface of the post; wherein the plurality of axially extending fingers are configured to be biased radially outward by the post into contact with the nut; wherein the post is configured to physically and electrically contact an outer conductor of a coaxial cable; and wherein the plurality of axially extending fingers are configured to provide an electrical grounding path between the post and the nut.
6. The coaxial cable electrical connector of claim 5, further comprising a connection sleeve slidingly coupled with the connector body.
7. The coaxial cable electrical connector of claim 6, wherein the compression sleeve is configured to be radially compressed onto a coaxial cable by sliding movement of the compression sleeve relative to the connector body.
8. The coaxial cable electrical connector of claim 5, wherein the post includes a main body portion having the radially outward facing surface and a flange portion forward of the main body portion, the flange portion extending radially outward relative to the main body portion.
9. The coaxial cable electrical connector of claim 8, wherein the flange portion of the post includes a rearward facing surface configured to engage the plurality of axially extending fingers.
10. The coaxial cable electrical connector of claim 8, wherein the nut includes a main body portion having the radially inward facing surface and a lip portion forward of the main body portion of the nut, the lip portion extending radially inward relative to the main body portion of the nut.
11. The coaxial cable electrical connector of claim 10, wherein the post includes a second flange portion forward of the flange portion, the second flange portion extending radially outward relative to the flange portion; and wherein the second flange portion includes a rearward facing surface configured to engage a forward facing surface of the lip portion of the nut.
12. The coaxial cable electrical connector of claim 5, wherein the connector body is a single monolithic structure, and the plurality of axially extending fingers are a portion of the single monolithic structure.
13. A coaxial cable electrical connector, comprising: a nut having a forward end and a rearward end; a post rotating coupled relative to the nut; and a body coupled with the nut and the post, the body having a forward end and a rearward end in an axial direction, wherein the body includes a plurality of axially extending fingers at the forward end of the body; wherein the plurality of axially extending fingers are configured to physically and electrically contact a radially inward facing surface of the nut and a radially outward facing surface of the post; wherein the plurality of axially extending fingers are configured to be biased radially outward by the post into contact with the nut; and wherein the plurality of axially extending fingers are configured to provide an electrical grounding path between the post and the nut.
14. The coaxial cable electrical connector of claim 13, further comprising a connection sleeve slidingly coupled with the body.
15. The coaxial cable electrical connector of claim 14, wherein the compression sleeve is configured to be radially compressed onto a coaxial cable by sliding movement of the compression sleeve relative to the body.
16. The coaxial cable electrical connector of claim 13, wherein the post includes a main body portion having the radially outward facing surface and a flange portion forward of the main body portion, the flange portion extending radially outward relative to the main body portion.
17. The coaxial cable electrical connector of claim 16, wherein the flange portion of the post includes a rearward facing surface configured to engage the plurality of axially extending fingers.
18. The coaxial cable electrical connector of claim 16, wherein the nut includes a main body portion having the radially inward facing surface and a lip portion forward of the main body portion of the nut, the lip portion extending radially inward relative to the main body portion of the nut.
19. The coaxial cable electrical connector of claim 18, wherein the post includes a second flange portion forward of the flange portion, the second flange portion extending radially outward relative to the flange portion; and wherein the second flange portion includes a rearward facing surface configured to engage a forward facing surface of the lip portion of the nut.
20. The coaxial cable electrical connector of claim 13, wherein the body is a single monolithic structure, and the plurality of axially extending fingers are a portion of the single monolithic structure.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Features and advantages of the present disclosure are described in, and will be apparent from, the following description.
(2)
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(4)
(5)
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(9)
DETAILED DESCRIPTION
(10) The coaxial cable connectors described in the present disclosure utilize a compression sleeve that may be used to compress the sheath of a coaxial cable to hold the coaxial cable in place with respect to the connector. The compression force acts to pinch the end of the coaxial cable that is inserted in the connector. The structure of the connector allows an installer to merely insert the cable into the connector and then further compress the compression sleeve of the connector to provide sufficient electrical continuity between the outer grounding conductor of the cable with the conductive housing of the connector.
(11) Referring to
(12) In some embodiments, the multichannel data network 5 includes a telecommunications, cable/satellite TV (“CATV”) network operable to process and distribute different RF signals or channels of signals for a variety of services, including, but not limited to, TV, Internet and voice communication by phone. For TV service, each unique radio frequency or channel is associated with a different TV channel. The set-top unit 22 converts the radio frequencies to a digital format for delivery to the TV. Through the data network 5, the service provider can distribute a variety of types of data, including, but not limited to, TV programs including on-demand videos, Internet service including wireless or WiFi Internet service, voice data distributed through digital phone service or Voice Over Internet Protocol (“VoIP”) phone service, Internet Protocol TV (“IPTV”) data streams, multimedia content, audio data, music, radio and other types of data.
(13) As described above, the data service provider uses coaxial cables 29 and 4 to distribute the data to the environment 6. The environment 6 has an array of coaxial cables 4 at different locations. The connectors 2 are attachable to the coaxial cables 4. The cables 4, through use of the connectors 2, are connectable to various communication interfaces within the environment 6, such as the female interface ports 14 illustrated in
(14) In one embodiment, each of the female interface ports 14 includes a stud or jack, such as the cylindrical stud 34 illustrated in
(15) In some embodiments, stud 34 is shaped and sized to be compatible with the F-type coaxial connection standard. It should be understood that, depending upon the embodiment, stud 34 could have a smooth outer surface. The stud 34 can be operatively coupled to, or incorporated into, a device 40 which can include, for example, a cable splitter of a distribution box 32, outdoor cable junction box 10 or service panel 12; a set-top unit 22; a TV 24; a wall plate; a modem 16; a router 18; or the junction device 33.
(16) During installation, the installer couples a cable 4 to an interface port 14 by screwing or pushing the connector 2 onto the female interface port 34. Once installed, the connector 2 receives the female interface port 34. The connector 2 establishes an electrical connection between the cable 4 and the electrical contact of the female interface port 34.
(17) Referring to
(18) The inner conductor 44 is operable to carry data signals to and from the data network 5. Depending upon the embodiment, the inner conductor 44 can be a strand, a solid wire or a hollow, tubular wire. The inner conductor 44 is, in one embodiment, constructed of a conductive material suitable for data transmission, such as a metal or alloy including copper, including, but not limited, to copper-clad aluminum (“CCA”), copper-clad steel (“CCS”) or silver-coated copper-clad steel (“SCCCS”).
(19) The insulator 46, in some embodiments, is a dielectric having a tubular shape. In one embodiment, the insulator 46 is radially compressible along a radius or radial line 54, and the insulator 46 is axially flexible along the longitudinal axis 42. Depending upon the embodiment, the insulator 46 can be a suitable polymer, such as polyethylene (“PE”) or a fluoropolymer, in solid or foam form.
(20) In the embodiment illustrated in
(21) In one embodiment, the connector 2 electrically grounds the outer conductor 50 of the coaxial cable 4. The conductive foil layer 48, in one embodiment, is an additional, tubular conductor which provides additional shielding of the magnetic fields. In one embodiment, the jacket 52 has a protective characteristic, guarding the cable's internal components from damage. The jacket 52 also has an electrical insulation characteristic.
(22) Referring to
(23) Depending upon the embodiment, the components of the cable 4 can be constructed of various materials which have some degree of elasticity or flexibility. The elasticity enables the cable 4 to flex or bend in accordance with broadband communications standards, installation methods or installation equipment. Also, the radial thicknesses of the cable 4, the inner conductor 44, the insulator 46, the conductive foil layer 48, the outer conductor 50 and the jacket 52 can vary based upon parameters corresponding to broadband communication standards or installation equipment.
(24) In one embodiment illustrated in
(25) The coaxial cable connector 2 of the present disclosure provides a reliable electrical ground, a secure axial connection, and a watertight seal across leakage-prone interfaces of the coaxial cable connector 2.
(26) The coaxial cable connector 2 comprises a post for engaging the outer conductor 50, a housing or body, and a coupler or threaded nut to engage the interface port 34. The post includes an aperture for receiving the insulator 46 and, in some embodiments, portions of the foil layer 48 and/or outer braided conductor 50 of a prepared coaxial cable, i.e., an end which has been stripped of its outer jacket similar to that shown in
(27) According to the disclosure, the aforementioned connectors 2 may be configured as a coaxial cable connector 100 as illustrated in
(28)
(29) Generally, the coaxial cable connector 100 comprises a nut 112 (or coupler), a post (or outer conductor engager) 114, a connector body 116, a compression sleeve 118, and an O-ring 120. The nut 112, post 114, and connector body 116 may comprise metal, plated plastic, or other electrically conductive material for providing electrical continuity with the outer grounding conductor 50 of the coaxial cable 4 and for maintaining a ground potential. The sleeve 118 may comprise plastic or other suitable material.
(30) As shown in
(31) The compression sleeve 118 may include plastic or other material that may be suitably flexible. An O-ring 126 is inserted within a trench of the compression sleeve 118, the trench being formed at an intersection between two reclined surfaces 104, 106. The reclined surfaces 104, 106 may have a thickness that is sufficiently thin enough to allow the reclined surfaces 104, 106 to bend as needed and may be considerably thinner than other portions of the sleeve 118. When a force is applied to the compression sleeve 118 in an axial direction, the O-ring 126 allows the reclined surfaces 104, 106 of the compression sleeve 118 to be compressed farther. Also, the O-ring 126 may be configured over the sleeve 118 to create a robust seal.
(32) In
(33) The O-ring 120 may also apply a slight force on a front surface 110 of the post 114 so that a rearward facing shoulder 134 of the post 114 maintains contact with a front edge of an inner ring 136 of the nut 112. However, the force does not prevent the nut 112 from rotating with respect to the post 114, thereby allowing the nut 112 to be screwed onto a corresponding port as needed. An inner surface of the nut 112 includes threads 130 allowing the nut 112 to be screwed onto the corresponding port. For example, the threads 130 of the nut 112 may be screwed onto the outer threaded surface 38 of the female interface port 34 shown in
(34) The post 114 includes a flange 141 that extends radially outward past an outer surface of the body portion 152 of the post 114. The flange 141 is configured to engage heels of the inner fingers 112 hold the inner fingers 122 of the connector body 116 together with the nut 112 and post 114 when the connector 100 is assembled. The flange 141 contacts the heel portion of the connector body 116 that is formed of the inner fingers 122 and a radial portion 125 of the connector body 116. With the heel contacting the body portion 152 of the post 114 and the inner fingers 122 biased outward to provide contact with the rear portion 102 of the nut, electrical continuity can be maintained between the post 114 and the nut 112 via the inner fingers 122.
(35) The nut 112 includes a notch 132 configured to accommodate the O-ring 120. The notch 132 is configured so as to allow the O-ring 120 to act as a seal between the nut 112 and the post 114. The post 114 includes a rearward facing shoulder 134 that is configured to contact a front edge of an inner ring 136 of the nut 112 when the coaxial cable connector 100 is in its assembled state. A rear portion of the O-ring 120 may be pressed against a forward facing surface 108 of the notch 132 of the nut 112 and a front surface 110 of the post 114 when the O-ring 120 is inserted within the walls of the notch 132.
(36) The radial portion 125 of the connector body 116 includes an inward stop 138 formed on an opposite side of the radial portion 125 from the inner fingers 122. The inward stop 138, along with an outward stop 140 of the post 114, are configured to form an abutment for the foil layer 48 and/or outer conductor 50, which are grounded conductors, of the cable 4. Thus, when the cable 4 is prepared as shown in
(37) The insert portion 154 of the post 114 may be inserted underneath the foil layer 48 to make sufficient physical and electrical contact with the foil layer 48. Alternatively, the insert portion 154 may be inserted between the foil layer 48 and outer conductor 50 to make sufficient physical and electrical contact with the outer conductor 50. In some embodiments, the insert portion of the post 114 may include ribs 148 that are configured to resist movement of a cable 4 that has been inserted in the space between an inclined surface 142 on an inner surface of the connector body 116 and the insert portion 154 of the post 114.
(38) In addition, the compression sleeve 118 includes a protrusion 150 that extends radially outward with respect to a main body portion of the compression sleeve 118. In an installed configuration in which the connector 100 is attached to the end of the prepared cable 4, the protrusion 150 of the compression sleeve 118 is configured to engage a forward-facing step 156 formed near a rear portion of the connector body 116. Engagement of the protrusion 150 with the step 156 holds the connector 100 in a completed state (e.g.,
(39) However, before the protrusion 150 is engaged with the step 156, the inclined portions 104, 106 may be arranged is a slightly less inclined state and positioned inside an inner surface of the connector body 116. By sliding the compression sleeve 118 in a forward direction, a forward end 146 of the compression sleeve 118 contacts an inner step 144 of the connector body 116. When the compression sleeve 118 is forced farther in the forward direction after contact is made with the inner stop 144, the compression force of the O-ring 126 can be used to more easily bend the inclined portions 104, 106 to more greatly inclined positions with respect to the axis of the connector 100. Also, the inclined portions 104, 106 nearest to the O-ring 126 will press against an inserted cable 4, thereby holding the cable 4 in its inserted state. Also, the ribs 148 assist with maintaining the cable 4 in its inserted state without backing out.
(40) While the compression sleeve 118 is moved in the forward direction such that the inclined portions 104, 106 compress the outer surfaces of the inserted cable 4, the protrusion 150 slides within the end of the connector body 116 and engages the step 156. This may be possible after a slight bending of the compression sleeve 118 at the O-ring 126, to hold the compression sleeve 118 in the compressed state.
(41) The following method may be used for assembling the parts of the connector 100 shown in
(42) Next, the coaxial cable 4, which has been prepared in such a way that the insulator 48 extends further forward than the sheath 52. For example, the coaxial cable 4 may be prepared in a way that is similar to the prepared cable shown in
(43) When the prepared cable is moved forward in this way, the forward end of the outer conductor and/or sheath 52 may reach the abutment formed by the inward stop 138 and the outward stop 140. In a next step, the compression sleeve 118 is moved in a forward direction to compress the thin inclined walls 104, 106 of the sleeve 118 in an inward direction to thereby compress the sheath 52 of the cable 4. The cable 4 may be held in place by this compression on the sheath 52. Also, the foil layer 48 and/or outer conductor 50 are held in place by the resistance offered by the edges of the ribs 148 to thereby prevent the cable 4 from backing out of the space. The compression sleeve 118 may be compressed until the protrusion 150 of the sleeve 118 is able to slide past the rearward end of the connector body 116 to engage with the step 156 of the connector body 116.