The present disclosure relates generally to communications, and specifically to a signal connector system.
Signal connectors that provide electrical connection between a pair of wires are necessary in nearly every piece of wired communications environment. There are numerous environmental challenges that can arise from ensuring connection of wires over long distances, such as to facilitate the use of signal connectors. One such environmental challenge includes the use of signal connectors in environments that can provide electrical conduction in ambient conditions. For example, electrical connections may be required in environments such as in fluids, such as water (e.g., seawater), that may create challenges in ensuring that separate signal conductors do not experience conduction between each other. Such conduction can lead to noise and/or cross-talk in the respective signals that are transmitted. Some connectors that can be implemented in such environments may be formed of non-traditional conductive materials. However, such materials, while potentially solving some of the environmental challenges, can introduce new challenges in such environments.
One example includes a signal connector system. The system includes a first connector comprising a first housing, and includes first contacts formed from a self-passivating transition metal. Each of the first contacts can be configured to conduct an AC signal. The system also includes a second connector comprising a second housing and second contacts formed from the self-passivating transition metal. Each of the second contacts can be configured to electrically couple to a respective one of the first contacts to conduct the AC signal. The first and second housings can be coupled to enclose the signal connector and to create at least one fluid-filled channel between each of the electrically-connected first and second contact pairs in response to fastening the first and second connectors while submerged in a respective fluid to provide a resistive path in the at least one fluid-filled channel for providing signal isolation between each of the electrically-connected first and second contact pairs.
Another example includes a method for providing a plurality of AC signals along a respective plurality of conductors across a signal connector system. The method includes submerging a first connector and a second connector in a fluid. The first connector includes a first housing and a first plurality of contacts formed from a self-passivating transition metal. The second connector includes a second housing and a respective second plurality of contacts formed from the self-passivating transition metal, such that a dielectric film forms on a surface of the first and second contacts in response to submersion in the fluid. The method also includes attaching the first and second connectors to provide electrical connection between the each of the first contacts and a respective one of the second contacts to conduct a respective one of the AC signals between the respective electrically-connected first and second contact pair, and to form at least one fluid-filled channel between each electrically-connected first and second contact pair. Each of the fluid-filled channel(s) forms a resistive path between electrically-connected first and second contact pairs. The method further includes fastening the first and second connectors via a first fastener associated with the first connector and a second fastener associated with the second connection portion to form the signal connector system.
Another example includes a signal connector system. The system includes a first connector. The first connector includes a first plurality of contacts formed from a self-passivating transition metal. Each of the first contacts being configured to conduct an AC signal. The first connector also includes a first plurality of pliable insulator supports that are coupled to a respective one of the first contacts, and a first housing configured to substantially enclose the first pluralities of contacts and pliable insulator supports and comprising a first fastener. The system also includes a second connector. The second connector also includes a second plurality of contacts formed from the self-passivating transition metal, a second plurality of pliable insulator supports that are coupled to a respective one of the second contacts, and a second housing configured to substantially enclose the second pluralities of contacts and pliable insulator supports and comprising a second fastener. The first and second housings can be configured to be coupled via the respective first and second fasteners to substantially enclose the signal connector and to provide electrical connection between each of the first contacts and a respective one of the second contacts at a predetermined pressure to conduct the respective AC signal between each of the first contacts and the respective one of the second contacts.
The present disclosure relates generally to communications, and specifically to a signal connector system. The signal connector system can be implemented in any of a variety of applications to provide a connection point for conductors (e.g., wires) that can each propagate a alternating current (AC) communication signal (hereinafter, “AC signal(s)”). As described herein, the term AC signal can refer to any variable amplitude signal, and is not limited to periodic or high-speed communications signals (e.g., radio frequency (RF) signals). The signal connector system includes a first connector and a second connector. As an example, the signal connector system can be implemented in an environment in which traditional connectors cannot be employed, such as in fluids. For example, the signal connector system can be implemented in an environment in which the first and second connectors can be connected with each other to form the signal connector system in such a non-traditional connection environment, such as submerged in a fluid (e.g., water). As an example, the first and second connectors can each be separately submerged in the fluid before being coupled together. As described herein, the signal connector system can be fabricated and arranged to facilitate propagation of separate AC signals on separate respective conductors in the fluid without experiencing noise and/or cross-talk between the separate respective conductors.
The first connector includes a first housing, and also includes a first plurality of contacts formed from a self-passivating transition metal. Each of the first contacts can be configured to conduct one of the AC signals. Similarly, the second connector includes a second housing and a second plurality of contacts formed from the self-passivating transition metal. For example, the self-passivating transition metal can be any of niobium, tantalum, titanium, zirconium, molybdenum, ruthenium, rhodium, palladium, hafnium, tungsten, rhenium, osmium, and iridium. Each of the second contacts can be configured to electrically couple to a respective one of the first contacts to conduct the AC signal. When submerged in the fluid (e.g., water), the contacts develop a dielectric film that acts as a high-capacitance capacitor between the self-passivating transition metal and the fluid.
For direct current (DC) signals, the high DC resistance of the dielectric film thus provides insulation between the separate contacts in the fluid. However, for AC signals, the capacitance of the dielectric film presents a low AC reactance and acts as a high-pass filter, which can provide some conduction between the separate contacts resulting in cross-talk and/or noise in the respective separate AC signals. Therefore, when the first and second housings are coupled to substantially enclose the signal connector, the first and second housings can provide at least one channel for accommodating the fluid between each of the electrically-coupled first and second contact pairs to provide a resistive path that appears in series with the capacitances between the electrically-coupled first and second contact pairs. The resistive path can therefore provide signal isolation between the AC signals to substantially mitigate the conduction of the AC signals between the separate electrically-coupled first and second contact pairs to substantially mitigate the cross-talk and/or noise associated with the AC signals.
The signal connector system 10 includes a first connector (“CONNECTOR 1”) 12 and a second connector (“CONNECTOR 2”) 14. The first connector 12 includes a plurality of contacts (“CONTACTS”) 16 formed from a self-passivating transition metal and the second connector 14 includes a plurality of contacts (“CONTACTS”) 18 formed from the self-passivating transition metal. As an example, the self-passivating transition metal can be niobium, or any other of a variety of transition metals (e.g., tantalum, titanium, zirconium, molybdenum, ruthenium, rhodium, palladium, hafnium, tungsten, rhenium, osmium, and iridium). Additionally, upon fastening of the first and second connectors 12 and 14, at least one fluid channel (“FLUID CHANNEL(S)”) 20 can be formed in the signal connector system 10, such as between electrically-connected sets of the contacts 16 and 18. In the example of
When submerged in the fluid (e.g., water), the self-passivating transition metal contacts 16 and 18 develop a dielectric film that acts as a high-capacitance capacitor between the respective contacts 16 and 18 and the associated fluid. For direct current (DC) signals, the high DC resistance of the dielectric film thus provides insulation between the separate contacts 16 and 18 in the fluid. However, for AC signals, the capacitance of the dielectric film presents a low AC reactance and acts as a high-pass filter, which can provide some conduction between the separate contacts resulting in cross-talk and/or noise in the respective separate AC signals. Therefore, in the example of
As an example, the contacts 16 and 18 can each be fabricated to include a tapered contact surface that is arranged to provide the electrical connection with a complementary tapered contact surface of a respective other one of the contacts 16 and 18. Additionally, the first and second connectors 12 and 14 can also include pliable insulator supports that can be coupled to each of the respective contacts 16 and 18. The pliable insulator supports can provide a predetermined contact pressure between the first and second contacts 16 and 18, such as to provide sufficient pressure to establish electrical connection between the first and second contacts 16 and 18. For example, the contact pressure can be sufficient to scrape and remove the insulating film that develops on the self-passivating transition metal when it is submerged in the fluid to provide direct metal-to-metal contact between the respective contacts 16 and 18. The pliable insulator supports can also limit the amount of contact pressure, such as to substantially mitigate galling of the contact surfaces of the contacts 16 and 18. Furthermore, as described in greater detail herein, the pliable insulator supports can further be configured to at least in part establish the channel(s) 20 between respective electrically-connected pairs of the contacts 16 and 18.
The signal connector system 50 includes a first contact 52 and a second contact 54. Similarly, the signal connector system 50 includes a third contact 56 and a fourth contact 58. As an example, the contacts 52, 54, 56, and 58 can be formed from a self-passivating transition metal, as described previously. The first and second contacts 52 and 54 are demonstrated as electrically connected at respective tapered contact surfaces, demonstrated at 60, and the third and fourth contacts 56 and 58 are demonstrated as electrically connected at respective tapered contact surfaces, demonstrated at 62. As an example, the first and third contacts 52 and 56 can be fabricated as a part of the first connector 12 and the second and fourth contacts 54 and 58 can be fabricated as part of the second connection portion 14.
Additionally, the signal connector system 50 includes a first pliable insulator support 64 that is coupled to the first contact 52, a second pliable insulator support 66 that is coupled to the second contact 54, a third pliable insulator support 68 that is coupled to the third contact 56, and a fourth pliable insulator support 70 that is coupled to the fourth contact 58. Each of the pliable insulator supports 64, 66, 68, and 70 are likewise tapered to be coupled along a longitudinal surface of the respective contacts 52, 54, 56, and 58 that is opposite the tapered contact surfaces of the respective contacts 52, 54, 56, and 58. As described previously, the pliable insulator supports 64 and 66 can provide a predetermined contact pressure between the first and second contacts 52 and 54, such as to provide sufficient pressure to establish electrical connection between the first and second contacts 52 and 54. Similarly, the pliable insulator supports 68 and 70 can provide a predetermined contact pressure between the third and fourth contacts 56 and 58, such as to provide sufficient pressure to establish electrical connection between the third and fourth contacts 56 and 58. For example, the contact pressure can be sufficient to scrape and remove the insulating film that develops on the self-passivating transition metal material when it is submerged in the fluid to provide direct metal-to-metal contact between the respective contacts 52 and 54 and the contacts 56 and 58. As also described previously, the pliable insulator supports 64, 66, 68, and 70 can also limit the amount of contact pressure, such as to substantially mitigate galling of the contact surfaces of the respective contacts 52, 54, 56, and 58.
Furthermore, as described previously, the pliable insulator supports 64, 66, 68, and 70 can further be configured to form the channel(s) between respective electrically-connected pairs of the contacts. In the example of
The fluid-filled channel 72 can thus create a resistive path between the electrically-connected contact pair 52 and 54 and the electrically-connected contact pair 56 and 58, as demonstrated in the example of
As described previously, when submerged in the fluid (e.g., water), the self-passivating transition metal contacts 52, 54, 56, and 58 develop a dielectric film that acts as a high-capacitance capacitor between the respective contacts 52, 54, 56, and 58 and the associated fluid. In the example of
For example, the resistance RCH of the resistive path created by the fluid-filled channel 72 can have a resistance magnitude that is sufficient for providing signal isolation between the AC signals AC_SIG, and therefore for mitigating cross-talk and/or noise between the separate AC signals AC_SIG. As an example, the resistance magnitude of the resistance RCH can be greater than or equal to approximately 100Ω, and can be at least one order of magnitude greater based on the design dimensions of the fluid-filled channel 72 and the fluid disposed therein. For example, the design dimensions of the fluid-filled channel 72 and the resistivity p of the associated fluid can be determinative of the resistance of the resistive path. Therefore, the dimensions of the fluid-filled channel 72 (e.g., length and width) can be designed to provide a predetermined resistance of the resistive path created by the fluid-filled channel 72. Accordingly, based on the inclusion of the fluid-filled channel 72 to provide a resistive path between the respective pairs of the contacts 52 and 54 and the contacts 56 and 58, the signal connector system 10 can be implemented for propagating AC signals, such as radio frequency (RF) communication signals in environments that cannot typically support AC signal propagation, such as in submerged aquatic or other environments.
While the fluid-filled channel 72 is demonstrated in the examples of
The connector 150 is demonstrated as an interior rendering of a connector. Therefore, the example of
In the example of
The signal connector system 200 includes a first connector 202 and a second connector 204 having been coupled together, such as based on the fastening of respective housing portions. The signal connector system 200 is demonstrated as an interior rendering of a signal connector system. Therefore, the example of
The contacts 206 of the first connector 202 are thus demonstrated as being electrically-connected to the contacts 208 of the second connector 204 at respective tapered contact surfaces, demonstrated generally at 214. Similar to as described previously, the pliable insulator supports 210 and 212 can cooperate to form channels, demonstrated in the example of
As described previously, the coupling of the contacts 206 and 208 to provide the electrical connection between the contacts 206 and 208 can involve a scraping of the dielectric film that forms on the self-passivating transition metal contacts 206 and 208 when submerged in the fluid. To better achieve such scraping of the dielectric film, such as in an environment or fluid that can facilitate a sedimentary or gritty build-up on the contacts 206 and 208, one of the sets of contacts 206 and 208 can include a projection that extends from the tapered contact surface.
The connectors 300 and 350 are each demonstrated as renderings of connectors. As an example, the connectors 300 and 350 can each correspond to more complete renderings of the connector 150 in the example of
In the example of
While the examples of
In view of the foregoing structural and functional features described above, an example method will be better appreciated with reference to
What has been described above are examples. 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 are possible. Accordingly, the disclosure is intended to embrace all such alterations, modifications, and variations that fall within the scope of this application, including the appended claims. As used herein, the term “includes” means includes but not limited to, the term “including” means including but not limited to. The term “based on” means based at least in part on. Additionally, where the disclosure or claims recite “a,” “an,” “a first,” or “another” element, or the equivalent thereof, it should be interpreted to include one or more than one such element, neither requiring nor excluding two or more such elements.
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