The present invention relates generally to connectors for terminating coaxial cable. More particularly, the present invention relates to axially compressible connectors for coaxial cables that provides a secure ground connection and retains a coupler to a post.
Coaxial cables are commonly used in the cable television industry to carry cable TV signals to television sets in homes, businesses, and other locations.
Exemplary flexible coaxial cables include a solid wire core or inner conductor, typically of copper or copper-clad aluminum, surrounded by a flexible tubular outer conductor. The outer conductor is also usually made of woven copper or aluminum. Dielectric material or insulation separates the inner and outer conductors. The outer conductor is covered with a cable jacket or sheath of plastic to provide protection against corrosion and weathering.
The ability of a connector to make a solid ground connection to the outer conductor of a device is required to achieve long term performance as well as facilitate proper signal transmission through the connector with minimal loss or disruption of the signal. It may be desirable to provide a connector that provides a secure contact between outer conductors in drop connectors and in coaxial connections to devices such as cable TV boxes, modems, and the like.
Threaded swivel cable connectors have been employed to provide a way to connect a cable to an interface port or other device without introducing a twist into the cable. These and other connectors can provide an electrically conductive connection between the outer conductor of the coaxial cable and a coupler of the connector. However, this electrically conductive connection can be compromised by a poor contact between a housing of the coupler and other parts of the connector.
It may be desirable to provide a connector that overcomes one or more of the aforementioned disadvantages of connectors. That is, it may be desirable to provide a connector having a wave shaped biasing portion that is configured to provide an electrical ground path between the nose portion and the coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.
In embodiments, a wave shaped biasing portion is configured to provide an electrical ground path between a nose portion and a coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.
Embodiments of the disclosure include a coaxial cable connector including: a connector body having a rearward cable receiving end and a forward end opposite the rearward cable receiving end; a nose portion having a rearward end and a forward end, wherein the rearward end is configured to be coupled with the forward end of the connector body; a coupler configured to be coupled with the forward end of the nose portion; a post disposed within at least a portion of the connector body and the nose portion; and a wave shaped biasing portion configured to be received by at least a portion of a receiving groove in an outer surface at the forward end of the nose portion.
In embodiments, the coupler is configured to be rotatably coupled to the nose portion.
In embodiments, the coupler has an inward radial protrusion configured to extend radially inwardly, and the inward radial protrusion has a forward radial wall and a rearward radial wall.
In embodiments, the wave shaped biasing portion has a front radial side and a rear radial side and is configured to form less than a complete circle.
In embodiments, the wave shaped biasing portion is configured to have an undulating shape when not axially compressed such that the front and rear radial sides of the first wave spring are not planar surfaces.
In embodiments, the front and rear radial sides of the wave shaped biasing portion are parallel.
In embodiments, the wave shaped biasing portion is configured to have an inner diameter that is less than an outer diameter of the receiving groove when the wave shaped biasing portion is not mounted in the receiving groove.
In embodiments, wherein the wave shaped biasing portion is configured to provide an electrical ground path between the nose portion and the coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.
In embodiments, the wave shaped biasing portion comprises a wave spring and further comprising a second wave shaped biasing portion that is configured to be received in the receiving groove.
In embodiments, the second wave shaped biasing portion includes a front radial side and a rear radial side and is configured to form less than a complete circle.
In embodiments, the second wave shaped biasing portion is configured to have an undulating shape when at rest such that the front and real radial sides of the second wave shaped biasing portion are not planar surfaces.
In embodiments, the front and rear radial sides of the second wave shaped biasing portion are parallel.
In embodiments, the second wave shaped biasing portion is configured to have an inner diameter that is less than the outer diameter of the receiving groove when the second wave spring is not mounted in the receiving groove.
In embodiments, the second wave shaped biasing portion is configured such that a portion of the rear radial side of the second wave shaped biasing portion contacts the forward radial wall of the inward radial protrusion while simultaneously a portion of the front radial side of the second wave shaped biasing portion contacts a forward radial wall of the receiving groove so as to retain the coupler on the connector body.
In embodiments, the second wave shaped biasing portion is configured to provide an electrical ground path between the nose portion and the coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.
Embodiments of the disclosure include a coaxial cable connector including: a body portion having a rearward cable receiving body portion and a forward body portion opposite the rearward cable receiving body portion; a nose portion having a rearward nose portion configured to be coupled with the forward body portion and a forward nose portion that includes an outer nose surface that is configured to form a recessed nose portion; a coupler portion configured to be coupled with the forward nose portion; a conductor portion that is configured to be supported in at least a portion the connector body portion and the nose portion; and a biasing portion configured to be received in the recessed nose portion.
In embodiments, the coupler portion is configured to be rotatably coupled to the nose portion.
In embodiments, the coupler portion includes an inward radially protruding coupler portion that is configured to protrude radially inwardly.
In embodiments, the biasing portion is configured to have an undulating shape when not axially compressed.
In embodiments, the biasing portion includes a front biasing portion that is configured to contact the protrusion portion during operation of the connector and a rear biasing portion that is configured to contact the recess during operation of the connector.
In embodiments, the biasing portion is configured to provide an electrical ground path between the nose portion and the coupler portion so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler portion when the coupler portion is not connected to an interface port, when the coupler portion is loosely coupled to the interface port, and when the coupler portion is fully tightened to the interface port.
In embodiments, the biasing portion comprises a wave spring and is configured to have an inner diameter that is configured to be less than an outer diameter of the recessed nose portion when the biasing portion is not mounted in the recessed nose portion.
In embodiments, the front biasing portion and the rear biasing portion are configured to extent parallel to each other during operation of the biasing portion.
In embodiments, the protrusion portion includes a rearward radial wall protrusion portion and the front biasing portion is configured to contact the rearward radial wall protrusion portion so as to retain the coupler portion on the body portion during operation of the connector.
In embodiments, the biasing portion includes a front radial biasing side portion and a rear radial biasing side portion, and wherein the biasing portion is configured to form less than a complete circle.
In embodiments, the front radial biasing side portion and the rear radial biasing side portion of the biasing portion comprise non-planar surfaces.
In embodiments, the recessed nose portion comprises a groove.
In embodiments, the conductor portion comprises a post.
In embodiments, the biasing portion comprises a wave spring.
In embodiments, the biasing portion comprises a first biasing portion and further comprising a second biasing portion configured to be received in the recessed nose portion.
In embodiments, the second biasing portion includes a second front biasing portion and a second rear biasing portion, and the second biasing portion is configured to form an undulating shape when not axially compressed, and wherein the second rear biasing portion is configured to contact the protrusion portion while the second front biasing portion contacts the recessed nose portion so as to retain the coupler portion on the body portion.
In embodiments, the second biasing portion is configured to biasingly provide an electrical ground path between the nose portion and the coupler portion so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler portion when the coupler portion is not connected to the interface port, when the coupler portion is loosely coupled to the interface port, and when the coupler portion is fully tightened to the interface port.
In embodiments, the second biasing portion comprises a wave spring.
In embodiments, the front biasing portion is configured to contact the protrusion portion during operation of the connector and the rear biasing portion is configured to simultaneously contact the recess during operation of the connector.
Embodiments of the disclosure include a cable connector including: a body portion having a forward body portion; a nose portion having a forward nose portion, a rearward nose portion that is configured to be coupled with the forward body portion, and a recessed nose portion; a coupler portion configured to be coupled with the forward nose portion; a conductor portion configured to be supported in at least part of the body portion and the nose portion; and a biasing portion configured to be received in at least a part of the recessed nose portion.
In embodiments, the coupler portion is configured to be rotatably coupled to the nose portion.
In embodiments, the biasing portion is configured to biasingly provide an electrical ground path between the nose portion and the coupler portion so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler portion when the coupler portion is not connected to an interface port, when the coupler portion is loosely coupled to the interface port, and when the coupler portion is fully tightened to the interface port.
In embodiments, the coupler portion includes a protruding coupler portion that is configured to protrude in a radially inwardly direction.
In embodiments, the conductor portion comprises a recessed conductor portion.
In embodiments, the biasing portion includes a front biasing portion and a rear biasing portion, and the biasing portion is configured such that the front biasing portion is configured to contact the protruding coupler portion while the rear biasing portion is configured to contact the recessed nose portion so as to retain the coupler portion on the body portion.
In embodiments, the biasing portion is configured to have an undulating shape when not axially compressed.
In embodiments, the biasing portion comprises a first biasing portion and further comprising a second biasing portion that configured to be received in the recessed nose portion.
In embodiments, the second biasing portion is configured to have an undulating shape when not axially compressed.
In embodiments, the second biasing portion is configured to biasingly provide an electrical ground path between the nose portion and the coupler portion so as to improve an electrically conductive connection between the outer conductor of the coaxial cable and the coupler portion when the coupler portion is not connected to the interface port, when the coupler portion is loosely coupled to the interface port, and when the coupler portion is fully tightened to the interface port.
In embodiments, the second biasing portion comprises a wave spring.
In embodiments, the forward nose portion comprises the recessed nose portion.
Various aspects of the coaxial connector, as well as other embodiments, objects, features and advantages of this disclosure, will be apparent from the following detailed description of illustrative embodiments thereof, which is to be read in conjunction with the accompanying drawings.
In embodiments, a wave shaped biasing portion is configured to provide an electrical ground path between a nose portion and a coupler so as to improve an electrically conductive connection between an outer conductor of a coaxial cable and the coupler when the coupler is not connected to an interface port, when the coupler is loosely coupled to the interface port, and when the coupler is fully tightened to the interface port.
The connector 100 includes a plurality of components generally having a coaxial configuration about an axis defined by the center conductor of the coaxial cable. A nose portion 106 receives a post 112 in an axial bore from a rearward direction which is opposite to the coupler 200. The nose portion 106 is an electrically conductive material such as aluminum, brass, or the like. The post 112 is an electrically conductive material such as aluminum, brass, or the like and has a cylindrical portion 134 that extends in the rearward direction and includes an axial bore 110. The post 112 has a flange 136 that is configured to engage the inner wall of the nose portion 106. The flange 136 provides additional surface area of electrical contact with the nose portion 106. The cylindrical portion 134 extends rearward from the flange 136. In embodiments, an outer body portion 104 is axially and radially fixed to the post 112. In embodiments, the outer body portion 104 is snap fit over a head of the post 112 and then the post 112 is press fit to the nose portion 106. The cylindrical portion 134 has an engagement feature 114 along a portion of its length. When the coaxial cable is inserted into connector 100, the cylindrical portion 134 penetrates the coaxial cable between the cable dielectric and the cable outer conductor or shield and the engagement feature 114 grips the cable outer conductor or shield. In an assembled state, the cylindrical portion 134 forms an electrically conductive connection with the outer conductor or shield.
The outer body 104 extends partially into the nose portion 106 and is limited in movement relative to the nose portion 106 in the axial direction. A knurled or other engaging interface can exist between the outer body 104 and the post 112 to prevent the post 112 from rotating relative to the outer body 104.
The compression ring 102 extends axially partially onto the outer body 104. The connector 100 includes a pin 118 that is received in a dielectric insulator 116 that is located in the nose portion 106. The pin 118 has a center conductor connector 130 (such as a Mill-Max connector) configured to receive and make an electrically conductive connection with the cable center conductor of the coaxial cable. In an assembled state, the cable center conductor extends into a bore 120 of the pin 118.
During connection of the coaxial cable to the connector 100, the coaxial cable is inserted into the opening in the compression ring 102 and into contact with the post 112. The leading edge of the cylindrical portion 134 separates the cable outer conductor or shield from the cable dielectric. As the coaxial cable is further inserted into the connector 100, the cable center conductor enters the center conductor connector 130 and the bore 120. In the assembled state, an electrically conductive path is formed from the cable center conductor through center conductor connector 130 and pin 118. In the assembled state, an electrically conductive path is formed from the cable outer conductor or shield through the post 112 and the nose portion 106.
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The described embodiments provide various advantages including a simple and reliable connection that provides a secure conductivity path from the outer conductor of the coaxial cable to the coupler 200. The described embodiments provide this connection while also allowing connection without introducing a twist into the coaxial cable.
Although the illustrative embodiments of the present invention have been described herein with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments, and that various other changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention.
Various changes to the foregoing described and shown structures will now be evident to those skilled in the art. Accordingly, the particularly disclosed scope of the invention is set forth in the following claims.
This application claims the benefit of U.S. Provisional Application No. 63/306,166 filed Feb. 3, 2022, the disclosure of which is hereby incorporated by reference herein in its entirety.
Number | Date | Country | |
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63306166 | Feb 2022 | US |