The subject application is directed generally to the field of electrical connectors. In particular, the application is directed to cable connectors of the type used with associated coaxial cable and finds application in connection with radio frequency transmission of signals on the associated coaxial cable through the connector. Embodiments of the subject application will be described with reference to hybridized male electrical connectors suitable for direct replacement of standard PL-259 connectors to be used with female SO-239 sockets thereby making the connection of the associated coaxial cables with female SO-239 sockets by means of the subject hybridized connector.
Coaxial cable, sometimes referred to as “coax,” is comprised of a generally tubular outer conductor disposed around an inner conductor separated by an insulator. Coaxial cable is advantageous for use in connection with signal transmission, such as modulated communication signals. Cable dimensions can be controlled to include precise spacing between the conductors so as to function as efficient transmission lines.
Coaxial cables are widely used in conjunction with transmission of communication signals, including radio frequency (“RF”) transmission, audio or video transmission, or modulated data signals, such as transmission of digital data.
As with any transmission or conductive table, cable lengths are of course finite. Longer cabling runs may require connection or splicing among multiple cable lengths. Additionally, insofar as cables ultimately serve to provide a signal path between devices, appropriate electro-mechanical connections must be made.
Specialized connectors assist in securing a signal connection between coaxial cables, or between a coaxial cable and a device. Such devices may include a transmitter or a receiver, or a bi-directional path between two or more transceivers. Specialized coaxial connectors are typically used to complete any such connection. Specialized connectors are available for many types of coaxial cables. Designs exist to allow quick connection or disconnection. Connectors are also designed to maximize transmission efficiency so as to minimize signal loss, reflection or distortion.
One type of coaxial connector in widespread use in connection with UHF transmissions is a PL-259 connector, wherein “PL” is definitive of a (male) plug. A corresponding socket designation is the (female) SO-239. This conductor is frequently used in connection with larger-diameter coaxial connectors, and with frequencies in the radio band inclusive of frequencies up to about 400 MHz. These connectors are representative of many types of RF connectors in common use. In addition to use with radio transmissions, such connectors find common use in other applications.
Coaxial connectors, such as those noted above, typically have an internally threaded body which must be attached to a braided shield of the co-axial cable having an outside casing, which casing is usually made of a flexible, insulator material, such as rubber, plastic or the like. To effect the attachment, a portion of the cable with the casing removed is inserted into a body of the connector and is manipulated so that an outer ferrule may be crimped over a portion of the cable having casing remaining to hold the shield against an outer surface of the body of the connector. The center conductor of the coaxial cable is generally cut to extend beyond the remainder of a cable end, and extends through a hollow alignment pin of the plug so that it may be inserted into a central, hollow, cylindrical portion of the female connector. An efficient and solid signal path is formed by either filling the space between the alignment pin and the center conductor of the coaxial cable with a solder material or by mechanically crimping the alignment pin of the plug connector onto the center conductor of the coaxial cable to effect the connection therebetween.
Sometimes the placement of the solder on the connector adjacent the center conductor at an end of the alignment pin is mismanaged or malformed and, as a result, the internal components of the associated socket is damaged as the connector and socket are coupled. More particularly, one or more inwardly biased members within the socket body configured to surroundingly engage the center conductor portion of the connector often become irreversibly dislodged into a retracted radially outward position through use of the socket with a connector having excess solder material in the area of the central conductor. In addition, the inherent bias of the one or more members within the socket body is often lost through use of the connector having the excess solder material in the area of the central conductor. In both examples, the integrity of the electro-mechanical connection of the socket body with a new connector without the excess solder material in the area of the central conductor after being damaged such as by connectors having excess solder material in the area of the central conductor, for example, is often compromised.
It is, therefore, desirable to provide a hybridized male electrical connector having both a crimpable portion for connection with the braided shield of a coaxial cable and an improved solder connection portion for the center conductor of the coaxial cable to be used with new, damaged, or worn female sockets thereby ensuring good electrical and mechanical connection of associated coaxial cable with both new and worn female sockets by means of the subject hybridized connector. In particular, it is desirable to provide a hybridized male electrical connector having both a crimpable portion for connection with the braided shield of a coaxial cable and an improved solder connection portion for the center conductor of the coaxial cable suitable for direct replacement of standard PL-259 connectors to be used with new, damaged, or worn female SO-239 sockets thereby ensuring good electrical and mechanical connection between the associated female SO-239 sockets and the subject hybridized connector.
The following presents a simplified overview of the example embodiments in order to provide a basic understanding of some aspects of the example embodiments. This overview is not an extensive overview of the example embodiments. It is intended to neither identify key or critical elements of the example embodiments nor delineate the scope of the appended claims. Its sole purpose is to present some concepts of the example embodiments in a simplified form as a prelude to the more detailed description that is presented later.
In accordance with an example embodiment, a hybridized cable connector is provided for use with an associated coaxial cable having a central conductor, an insulating material surrounding the central conductor, a conductive braid surrounding the insulating material, and an outer jacket surrounding the conductive braid. The cable connector apparatus is a hybridized cable connector because it is configured for solder connection with a central conductor of an associated coaxial cable and for a crimp connection with a conductive braid or with the conductive braid and a foil member surrounding insulating material of the associated coaxial cable. The hybridized cable connector comprises, in general, a substantially cylindrical body member, a spacer disk, and a contact pin member having a substantially constant outer diameter extending outwardly from the spacer disk along a central longitudinal axis of the body member beyond an extent of the body member in an insertion direction directed from a first end of the body member to a second end of the body member opposite to the first end. In one example embodiment, the connector further comprises an outer shell member and a ferrule. Overall, the outer shell member is configured to assist in attaching and holding the connector to an associated female socket such as, for example, to an associated SO-239 connector. The ferrule is configured to be crimped onto the associated coaxial cable for attaching and holding the connector relative to the cable thereby effecting a good electro-mechanical connection between the conductive braid of the cable with the ferrule and connector body.
As noted, the example embodiments provide, in general, hybridized male electrical connectors to be used with new, damaged or worn female sockets thereby refurbishing the electrical and mechanical connection of associated coaxial cable with the worn female sockets by means of the subject hybridized connectors. In addition and in particular, the example embodiments provide hybridized male electrical connectors suitable for direct replacement of standard PL-259 connectors to be used with new, damaged or worn female SO-239 sockets thereby ensuring good electrical and mechanical connection between the associated female SO-239 sockets and the coaxial cable carried in the subject hybridized connector.
Still other advantages, aspects and features of the present methods and apparatus will become readily apparent to those skilled in the art from the following description wherein there is shown and described example embodiments, simply by way of illustration of one of the best modes best suited for to carry out the example embodiments. As it will be realized, the embodiments are capable of other different embodiments and its several details are capable of modifications in various obvious aspects all without departing from the scope of this disclosure. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
The embodiments may take physical form in certain parts and steps and arrangements of parts and steps, the example embodiments of which will be described in detail in the specification and illustrated in the accompanying drawings hereof and wherein:
a is an inverted cross-sectional view of the connector of
a is an inverted cross-sectional view of the connector of
This description provides examples not intended to limit the scope of the appended claims. The figures generally indicate the features of the examples, where it is understood and appreciated that like reference numerals are used to refer to like elements. Reference in the specification to “one embodiment” or “an embodiment” or “an example embodiment” means that a particular feature, structure, or characteristic described is included in at least one embodiment described herein and does not imply that the feature, structure, or characteristic is present in all embodiments described herein.
Coaxial connectors are available for many applications. Required properties of a particular connector type correspond to properties of cables or applications with which they are to be associated. Such properties may include cable diameter, conductor diameter, relative conductor placement, physical characteristics of the cable, or sub-portions thereof. Connector properties may also be dictated by insulative, conductive or RF propagation or reflection characteristics, such as may be associated with particular amplitudes, frequencies, phases, voltage ranges, current ranges or impedance properties.
Given the wide range of characteristics, many types of coaxial connectors are available. By way of example, connector types include size types, such as miniature, sub-miniature and micro connectors.
A supplier must design, manufacture and stock connectors or connector sub-assemblies for many applications. Manufacturing of each connector type will typically require design and fabrication of tooling for each connector type. Such tooling, manufacturing changeover, inventory and transportation of various connectors adds significant cost, complexity and expense to manufacturers, sellers and consumers of connector products.
The subject application includes embodiments of a coaxial cable connector that are adaptable for use in connection with cables having different characteristics or different application requirements. Sub-portions of a connector are suitably substituted with portions appropriate for various applications. Thus, components are readily usable and changeable for particular applications, allowing for lower manufacturing, stocking and overall cost. In the embodiments illustrated and describe herein, various dimensions are understood to contemplated, which dimensions and relative dimensions are application specific as will be appreciated by one of ordinary skill in the art.
With reference now to the drawing Figures wherein the showings are for purposes of illustrating the example embodiments only and not for purposes of limiting same,
In any case, the connector 10 comprises, in general, a substantially cylindrical body member 20, a spacer disk 40, and a contact pin member 60, forming a subassembly A of the connector 10. In the illustrate example, the connector 10 further comprises an outer shell member 12 and a ferrule 14. Overall, the outer shell member 12 is configured to assist in attaching and holding the connector 10 to an associated female socket connector (not shown) such as, for example, to an associated SO-239 connector. The ferrule 14 is configured to be crimped onto the associated coaxial cable 1 for attaching and holding the connector 10 relative to the cable 1 with the conductive braid held firm against an outer surface of the connector body. Knurling on an exterior of the shell facilitates turning to mate the complementary portions. It will be appreciated that such threaded interconnection is by way of example only. Any suitably fastening mechanism is suitably employed, such as used in connection with quick lock connectors, including examples of HPQN, MiniQuick, QLS, QMA, QN, Mini-QMA, WQMA and SnapN connectors. Other suitable connectors suitably include bayonet connectors, spring connectors, base connectors, push-pull connectors, or the like.
With continued reference to the drawings and with particular reference to
Further in accordance with the first example embodiment, the spacer disk 40 of the hybridized cable connector 10 is received in the second end 24 of the body member 20. As shown, the spacer disk 40 has opposite first 42 and second 44 ends and defines a centering aperture 46 extending through the spacer disk 40 along the central longitudinal axis L between the first 42 and second 44 ends of the spacer disk 40. Preferably, the spacer disk 40 is made of an electrically insulating material such as PTFE, for example.
Yet still further, the contact pin member 60 is received in the centering aperture 46 of the spacer disk 40 and has opposite first 62 and second 64 ends. The contact pin member 60 is generally hollow and defines an alignment aperture 66 extending through the contact pin member 60 along the central longitudinal axis L between the first 62 and second 64 ends of the contact pin member 60. In general, the alignment aperture 66 is configured to closely receive the central conductor 2 of the associated coaxial cable 1 therein such as shown for example in
As noted above, the interface portion 70 of the connector 10 defines an edge 72 on the second end 62 of the contact pin member 60. The edge 72 comprises a semicircular edge portion 73 disposed in a plane substantially perpendicular to the central longitudinal axis L, a curvilinear edge portion 75 comprising one or more regions 77 disposed in a plane substantially perpendicular to the central longitudinal axis L, and one or more regions 79 disposed in a plane substantially parallel with the central longitudinal axis L.
It is to be noted that the presence of the curvilinear edge portion 75 causes a disruption to an otherwise complete circular portion forming the semicircular edge portion 73 relative to the edge 72 of the contact pin member 60 making it unsuitable in a practical sense from being crimped relative to the central conductor 2 of the coaxial cable. The curvilinear edge portion 75 of the example embodiments herein would induce the interface portion 70 of the pin member 60 to “roll” or otherwise distort during a crimping operation resulting in a poor or lack of electro-mechanical connection between the central conductor of the coaxial cable and the contact pin member. Accordingly, the interface portion 70 of the pin member 60 having the curvilinear edge portion 75 is suitable for practical use exclusively in solder type connections with the central conductor 2 and unsuitable for use with crimp type connections between the pin member 60 and the conductor 2. Further the interface portion 70 of the pin member 60 having the curvilinear edge portion 75 is also unsuitable for use with connections being of the dual “crimp or solder” type connections between the pin member 60 and the conductor 2, wherein these connections, even though intended to be used with solder must also be workable in the crimp style connection as well.
On the other hand, it is to further be noted that the curvilinear edge portion 75 advantageously enables direct access to the end of the central conductor 2 in an area S (
With regard to the connection portion 68 of the contact pin member 60, a radially outwardly directed tapered portion 74 is defined. The tapered portion 74 is configured to guide a free end of the central conductor 2 relative to the first end 62 of the contact pin member 60 and into the alignment aperture 66 as the associated coaxial cable 1 is inserted into the connector 10 in the insertion direction I. As shown best in
As shown best in the cross-sectional views of
With continued reference to the drawing Figures and with particular reference next to
In any case, the connector 10′ comprises, in general, a substantially cylindrical body member 20′, a spacer disk 40′, and a contact pin member 60′, forming a subassembly A′ of the connector 10. In the illustrate example, the connector 10′ further comprises an outer shell member 12′ and a ferrule 14′. Overall, the outer shell member 12′ is configured to assist in attaching and holding the connector 10 to an associated female socket connector (not shown) such as, for example, to an associated SO-239 connector. The ferrule 14′ is configured to be crimped onto the associated coaxial cable 1 for attaching and holding the connector 10′ relative to the cable 1 with the conductive braid 4 held against an outer surface of the connector body. Knurling on an exterior of the shell facilitates turning to mate the complementary portions. It will be appreciated that such threaded interconnection is by way of example only. Any suitably fastening mechanism is suitably employed, such as used in connection with quick lock connectors, including examples of HPQN, MiniQuick, QLS, QMA, QN, Mini-QMA, WQMA and SnapN connectors. Other suitable connectors suitably include bayonet connectors, spring connectors, base connectors, push-pull connectors, or the like.
With continued reference to the drawings and with particular reference to
Further in accordance with the second example embodiment, the spacer disk 40′ of the hybridized cable connector 10′ is received in the second end 24′ of the body member 20′. As shown, the spacer disk 40′ has opposite first 42′ and second 44′ ends and defines a centering aperture 46′ extending through the spacer disk 40′ along the central longitudinal axis L between the first 42′ and second 44′ ends of the spacer disk 40′. Preferably, the spacer disk 40′ is made of an electrically insulating material such as PTFE, for example.
Yet still further, the contact pin member 60′ is received in the centering aperture 46′ of the spacer disk 40′ and has opposite first 62′ and second 64′ ends. The contact pin member 60′ defines an alignment aperture 66′ extending through the contact pin member 60′ along the central longitudinal axis L between the first 62′ and second 64′ ends of the contact pin member 60′. In general, the alignment aperture 66′ is configured to receive the central conductor 2 of the associated coaxial cable 1 therein such as shown for example in
As noted above, the interface portion 70′ of the connector 10′ defines an edge 72′ on the second end 62′ of the contact pin member 60′. The edge 72′ comprises a semicircular edge portion 73′ disposed in a plane substantially perpendicular to the central longitudinal axis L, a curvilinear edge portion 75′ comprising one or more regions 77′ disposed in a plane substantially perpendicular to the central longitudinal axis L, and one or more regions 79′ disposed in a plane substantially parallel with the central longitudinal axis L.
It is to be noted that the presence of the curvilinear edge portion 75′ causes a disruption to an otherwise complete circular portion forming the semicircular edge portion 73′ relative to the edge 72′ of the contact pin member 60′ making it unsuitable in a practical sense from being crimped relative to the central conductor 2 of the coaxial cable. The curvilinear edge portion 75′ of the example embodiments herein would induce the interface portion 70′ of the pin member 60′ to “roll” or otherwise distort during a crimping operation resulting in a poor or lack of electro-mechanical connection between the central conductor of the coaxial cable and the contact pin member. Accordingly, the interface portion 70′ of the pin member 60′ having the curvilinear edge portion 75′ is suitable for practical use exclusively in solder type connections with the central conductor 2 and unsuitable for use with crimp type connections between the pin member 60′ and the conductor 2. Further the interface portion 70′ of the pin member 60′ having the curvilinear edge portion 75′ is also unsuitable for use with connections being of the dual “crimp or solder” type connections between the pin member 60′ and the conductor 2, wherein these connections, even though intended to be used with solder must also be workable in the crimp style connection as well.
On the other hand, it is to further be noted that the curvilinear edge portion 75′ advantageously enables direct access to the end of the central conductor 2 in an area S (
With regard to the connection portion 68′ of the contact pin member 60′, a radially outwardly directed tapered portion 74′ is defined. The tapered portion 74′ is configured to guide a free end of the central conductor 2 relative to the first end 62′ of the contact pin member 60′ and into the alignment aperture 66′ as the associated coaxial cable 1 is inserted into the connector 10′ in the insertion direction I. As shown best in
As shown best in the cross-sectional views of
With continued reference to the drawing Figures and with particular reference next to
In any case, the connector 10″ comprises, in general, a substantially cylindrical body member 20″, a spacer disk 40″, and a contact pin member 60″, forming a subassembly A″ of the connector 10. In the illustrate example, the connector 10″ further comprises an outer shell member 12″ and a ferrule 14″. Overall, the outer shell member 12″ is configured to assist in attaching and holding the connector 10″ to an associated female socket connector (not shown) such as, for example, to an associated SO-239 connector. The ferrule 14″ is configured to be crimped onto the associated coaxial cable 1 for attaching and holding the connector 10″ relative to the cable 1′ with the conductive braid 4′ held against an outer surface of the connector body. Knurling on an exterior of the shell facilitates turning to mate the complementary portions. It will be appreciated that such threaded interconnection is by way of example only. Any suitably fastening mechanism is suitably employed, such as used in connection with quick lock connectors, including examples of HPQN, MiniQuick, QLS, QMA, QN, Mini-QMA, WQMA and SnapN connectors. Other suitable connectors suitably include bayonet connectors, spring connectors, base connectors, push-pull connectors, or the like.
With continued reference to the drawings and with particular reference to
Further in accordance with the third example embodiment, the spacer disk 40″ of the hybridized cable connector 10″ is received in the second end 24″ of the body member 20″. As shown, the spacer disk 40″ has opposite first 42″ and second 44″ ends and defines a centering aperture 46″ extending through the spacer disk 40″ along the central longitudinal axis L between the first 42″ and second 44″ ends of the spacer disk 40″. Preferably, the spacer disk 40″ is made of an electrically insulating material such as PTFE, for example.
Yet still further, the contact pin member 60″ is received in the centering aperture 46″ of the spacer disk 40″ and has opposite first 62″ and second 64″ ends. The contact pin member 60″ defines an alignment aperture 66″ extending through the contact pin member 60″ along the central longitudinal axis L between the first 62″ and second 64″ ends of the contact pin member 60″. In general, the alignment aperture 66″ is configured to receive the central conductor 2′ of the associated coaxial cable 1′ therein such as shown for example in
As noted above, the interface portion 70″ of the connector 10″ defines an edge 72″ on the second end 62″ of the contact pin member 60″. The edge 72″ comprises a semicircular edge portion 73″ disposed in a plane substantially perpendicular to the central longitudinal axis L, a linear edge portion 75″ comprising one or more regions 77″ disposed in a plane substantially perpendicular to the central longitudinal axis L, and one or more regions 79″ disposed in a plane substantially parallel with the central longitudinal axis L. In addition, as shown in
It is to be noted that the presence of the linear edge portion 75″ causes a disruption to an otherwise complete circular portion forming the semicircular edge portion 73″ relative to the edge 72″ of the contact pin member 60″ making it unsuitable in a practical sense from being crimped relative to the central conductor 2′ of the coaxial cable. The linear edge portion 75″ of the example embodiments herein would induce the interface portion 70″ of the pin member 60″ to “roll” or otherwise distort during a crimping operation resulting in a poor or lack of electro-mechanical connection between the central conductor of the coaxial cable and the contact pin member. Accordingly, the interface portion 70″ of the pin member 60″ having the linear edge portion 75″ is suitable for practical use exclusively in solder type connections with the central conductor 2′ and unsuitable for use with crimp type connections between the pin member 60″ and the conductor 2′. Further the interface portion 70″ of the pin member 60″ having the linear edge portion 75″ is also unsuitable for use with connections being of the dual “crimp or solder” type connections between the pin member 60″ and the conductor 2′, wherein these connections, even though intended to be used with solder must also be workable in the crimp style connection as well.
On the other hand, it is to further be noted that the linear edge portion 75″ advantageously enables direct access to the end of the central conductor 2′ in an area S (
With regard to the connection portion 68″ of the contact pin member 60″, a radially outwardly directed tapered portion 74″ is defined. The tapered portion 74″ is configured to guide a free end of the central conductor 2′ relative to the first end 62″ of the contact pin member 60″ and into the alignment aperture 66″ as the associated coaxial cable 1 is inserted into the connector 10″ in the insertion direction I. As shown best in
As shown best in the cross-sectional views of
It is to be appreciated that in the embodiments described above,
It is to be appreciated that, in the example embodiment illustrated at
Described above are example embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies, but one of ordinary skill in the art will recognize that many further combinations and permutations of the example embodiments are possible. Accordingly, this application is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims interpreted in accordance with the breadth to which they are fairly, legally and equitably entitled.
This application claims benefit to U.S. Provisional Patent Application Ser. No. 61/933,469 filed on Jan. 30, 2014, the contents of which are incorporated herein by reference; and to U.S. Provisional Patent Application Ser. No. 61/901,165 filed on Nov. 7, 2013, the contents of which are incorporated herein by reference.
Number | Date | Country | |
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61901165 | Nov 2013 | US | |
61933469 | Jan 2014 | US |