Patent Grant
11362463
The present disclosure is directed to connectors and, more specifically, to connectors for use with a single-twisted pair of conductors.
A single twisted pair of conductors can be used to transmit data and/or power over a communications network that includes, for example, computers, servers, cameras, televisions, and other electronic devices including those on the internet of things (IoT), etc. In the past, this has been performed through use of Ethernet cables and connectors that typically include four pairs of conductors that are used to transmit four differential signals. Differential signaling techniques, where each signal is transmitted over a balanced pair of conductors, are used because differential signals may be affected less by external noise sources and internal noises sources such as crosstalk as compared to signals that are transmitted over unbalanced conductors.
In Ethernet cables, the insulated conductors of each differential pair are tightly twisted about each other to form four twisted pairs of conductors, and these four twisted pairs may be further twisted about each other in a so-called “core twist.” A separator may be provided that is used to separate (and hence reduce coupling between) at least one of the twisted pairs from at least one other of the twisted pairs. The four twisted pairs and any separator may be enclosed in a protective jacket. Ethernet cables are connectorized with Ethernet connectors; a single Ethernet connector is configured to accommodate all four twisted pairs of conductors. However, it is possible that data and/or power transfer can be effectively supported through a singled twisted pair of conductors with its own more compact connector and cable. Accordingly, a connector design different from a standard Ethernet connector is needed.
A single twisted pair of conductors can be used to transmit data and/or power over a communications network that includes, for example, computers, servers, cameras, televisions, and other electronic devices including those on the internet of things (IoT), etc. A family of connectors to accommodate a single twisted pair of conductors is disclosed herein. The family of connectors includes a free connector, a fixed connector, and an adapter; the free and/or fixed connectors can be modified to accommodate the adapter configuration and/or modified to accommodate various patch cord configurations. In certain embodiments, the one or more of the family of connectors adopts an LC fiber optic style connector configuration and an LC fiber optic footprint configuration. In certain examples, one or more of the family of connectors adopts an LC fiber optic style connector configuration but in a footprint that is larger or smaller than the footprint of the LC fiber optic footprint. Other configurations may also be adopted.
An aspect of the present disclosure is directed to a connector. The connector is configured for exactly two conductors. The connector includes a forward connector body, a rear connector body, a metal frame and exactly two electrical contacts. The rear connector body interfaces with the forward connector body. Further, the metal frame, which includes a shielding interface, surrounds at least a portion of both the forward and rear connector bodies. The electrical contacts extend from the rear connector body into the forward connector body. A first of the electrical contacts is electrically coupled to a first conductor of a shielded cable and the second of the electrical contacts is electrically coupled to a second conductor of the shielded cable. The shield interface of the metal frame is electrically coupled to the shield of the shielded cable.
Another aspect of the present disclosure is directed to an electrical contact for a two-conductor-only connector that houses exactly two of the electrical contacts. Each electrical contact comprises a tuning fork receptacle contact at a first end of the electrical contact and an insulation displacement contact (IDC) at a second end of the electrical contact. The IDC is electrically coupled to one of the conductors. The tuning fork receptacle contact includes a pair of opposing spring arms that define exactly two contact zones, e.g. a disengagement zone and a fully engaged zone. The disengagement zone permits an arc between the tuning fork receptacle contact and a pin contact received by the tuning fork receptacle contact without damaging a final contact point of the pin contact when received at the fully engaged zone.
Another aspect of the present disclosure is directed to a method of connectorizing exactly one pair of conductors comprising a first and second conductor. The method comprises: (a) inserting a first and second electrical contact into a connector housing, wherein each of the first and second electrical contacts include a first end having a tuning fork receptacle contact and a second end having an insulation displacement contact (IDC); (b) securing a metal frame to the connector housing, the metal frame surrounding at least a portion of the connector housing; (c) electrically coupling the first conductor to the IDC of the first electrical contact and electrically coupling the second conductor to the IDC of the second electrical contact; and (d) electrically coupling a shielding element of the metal frame to a shield of the shielded cable.
A family of connectors to accommodate a single twisted pair of conductors is disclosed herein. The family of connectors includes a free connector, a fixed connector, and an adapter; the free and/or fixed connectors can be modified to accommodate various patch cord and mounting configurations. In certain embodiments, the one or more of the family of connectors adopts an LC fiber optic style connector configuration and an LC fiber optic footprint configuration. In certain examples, one or more of the family of connectors adopts an LC fiber optic style connector configuration but in a footprint that is larger or smaller than the footprint of the LC fiber optic footprint. Other configurations may also be adopted.
Referring to
Referring to
Referring once again to
The connector housing 102 of the free connector 100 includes an elongate body portion 110 having first and second side walls 112, 114 connected by upper and lower walls 116, 118, respectively, to establish a square or substantially square forward face 120. The connector housing 102 further includes a rear portion 122 that extends rearward from the elongate body portion 110. The rear portion 122 has side walls 124, 126 connected by upper and lower walls 128, 130, respectively, to establish a square or substantially square rear face 132 of the connector housing 102. The outer dimensions of the rear portion 122 are reduced from the outer dimensions of the elongate body portion 110 to accommodate a rear cover 131 or boot to enclose the rear face 132 of the connector housing 102. In certain embodiments, the rear cover 131 includes a strain-relief feature. A central channel 134 of a consistent or varying cross-section extends through the connector housing 102 from the forward face 120 to the rear face 132. In instances, where the connector housing 102 is varying from the LC style connectors, the exterior and/or interior cross-sections of the connector housing 102 can assume a shape (e.g. round, oval, rectangular, triangular, hexagonal, etc.) that is different from a squared shape.
The connector housing 102 includes a snap latch 136 on the upper wall 116 of the elongate body portion 110. The snap latch 136 can be positioned proximate the forward face 120 of the connector housing 102 as illustrated or can be positioned further rearward along the upper wall 116 as appropriate to enable a releasable interface or coupling with a corresponding fixed connector or adapter, described below. In certain example embodiments, at least one of the side walls 112, 114 includes a cantilevered latch 138 that interfaces with the connector insert 104 to retain the connector insert 104 within the central channel 134 when inserted therein.
In certain example embodiments, the connector housing 102 includes a keying feature that is provided within the central channel 134 to ensure that the connector insert 104 is inserted into the connector housing 102 in a correct orientation. In the example embodiment of
In certain example embodiments, the connector housing 102 includes a stop feature to help ensure proper forward positioning and/or prevent over-insertion of the connector insert 104. In the example embodiment of
The connector insert 104 includes a body portion 144 having first and second side walls 146, 148 connected by upper and lower walls, 150, 152, respectively. A forward face 154 of the body portion 144 includes two apertures 156, 158 behind which extend first and second channels 160, 162, respectively. The first and second channels 160, 162 extend from the forward face 154 out through a rear face 164. The body portion 144 is configured to be received within the central channel 134 of the connector housing 102 such that the forward face 154 of the body portion 144 is proximate the forward face 120 of the connector housing. In certain examples, when inserted into the connector housing 102, the entirety of the connector insert 104 is maintained within the elongate body portion 110 of the connector housing 102.
In certain examples, each of the first and second channels 160, 162 of the connector insert 104 includes one or more bosses 166 and a lip edge 168 proximate the rear face 164. When the socket contacts 106a, 106b are inserted in their respective first and second channels 160, 162, each boss 166 operates to position the socket contacts 106a, 106b, so as to be axially aligned with the apertures 156, 158 of the forward face 154. The boss 166 also operates to establish an interference fit between the socket contacts 106a, 106b and their respective first and channels 160, 162 to help maintain the socket contacts 106a, 106b within the first and second channels. The lip edge 168 also aids in positioning each socket contact 106a, 106b, so as to place each socket contact 106a, 106b forward most in their respective first and second channels 160, 162 proximate the forward face 154 of the connector insert 104, and to prevent the socket contacts 106a, 106b, from being pulled rearward out of their respective first and second channels 160, 162 and out of the connector insert 104 itself. Other features and/or elements can also, or alternatively, be used to retain the socket contacts 106a, 106b within the first and second channels 160, 162 without departing from the spirit of the disclosure.
In certain examples, the apertures 156, 158 and respective first and second channels 160, 162 are stacked vertically or positioned side-by-side horizontally. However, in order to minimize the crosstalk between adjacent contact pairs when a plurality of connectors 100 are deployed near one another, in certain examples, the apertures 156, 158 and respective first and second channels 160, 162 are provided in an offset configuration (see
In certain examples, at least one of the side walls 146, 148 of the connector insert 104 includes a ramped tab 170 that protrudes outwardly therefrom. When inserting the connector insert 104 within the connector housing 102, the ramped tab 170 allows the connector insert 104 to pass the cantilevered latch 138 of the connector housing 102 for full insertion and subsequently engages the cantilevered latch 138 preventing rearward movement or removal of the connector insert 104 from the connector housing 102. Other features and/or elements can also, or alternatively, be used to retain the connector insert 104 within the connector housing 102 without departing from the spirit or scope of the disclosure.
In certain examples, the connector insert 104 includes a keying feature that is configured to interface with the keying feature of the connector housing 102. In the example of
In certain examples, the connector insert 104 includes a stop feature. In the example of
Each of the socket contacts 106a, 106b includes a tip contact 176 and a ring contact 178. Each socket contact 106a, 106b comprises a hollow cylinder having a rear end 180 and a forward end 182. An internal diameter 184 of the rear end 180 of each socket contact 106a, 106b, can be sized to receive a respective one of the conductors 12, 14 (or 22, 24, or 26, 28, see
The free connectors 100 can be configured in a simplex form or combined in a duplex form similar to that available with LC fiber optic connectors (see
The fixed connector 300 is a two-piece component comprising a body portion 302 and a rear panel 304; the rear panel 304 enables placement of pin conductors 306a, 306b within the body portion 302.
The body portion 302 includes first and second side walls 308, 310 connected by upper and lower walls 312, 314. The first and second side walls 308, 310, and the upper and lower walls 312, 314 frame an open forward portion 316 that presents a port 318 within the body portion 302 that is configured to receive the free connector 100. A notch 320 proximate the upper wall 312 is configured to interface with the snap latch 136 to removably retain the free connector 100. A rear plate 322 of the body portion 302 fills that gap between walls 308, 310, 312, 314 save for a pin cavity 324 and pin channels 325 extending therefrom. The pin channels 325 are configured to receive the pin conductors 306a, 306b while the pin cavity 324 is configured to house the portion of the pin conductors 306a, 306b not within the pin channels and to interface with the rear panel 304. First and second notches 326, 328 extend through first and second side walls 308, 310, respectively, to the rear plate 322 and are configured to interface with the rear panel 304.
Referring to
The rear panel 304 includes a forward face 342 and a planar rear face 344. The forward face 342 is provided with a pair of forward extending tabs 346, 348 that are configured to interface with the first and second notches 326, 328 to fixedly, or removably, secure the rear panel 304 to the body portion 302 through an interference fit. In certain embodiments, a latching mechanism can be used additionally or alternatively to the interference fit to secure the rear panel 304. The forward face 342 is further provided with a forward extending upper stabilizer 350 curving toward a central location 352 and a forward extending lower stabilizer 354 curving toward the same central location 352. A pin stabilizer 356 is provided to either side of the upper stabilizer 350.
The pin conductors 306a, 306b each include a first end 358 and a second end 360. Each pin conductor 306a, 306b is bent to approximate a right angle between the first and second ends 358, 360 so that the first end 358 extends through the rear plate 322 and into the port 318. While within the port 318, the first ends 358 are to be received in the forward end 182 of the socket contacts 106a, 106b to make an electrical connection therewith when the free connector 100 is inserted into the port 318. The second end 360 of each of the pin conductors 306a, 306b extends through the lower wall 314. The first ends 358 of the pin conductors 306a, 306b are arranged to be offset from one another consistent with the offset of the socket contacts 106a, 106b while that second ends 360 of the pin conductors 306a, 306b are crossed proximate the right angle bend; the offset and crossing of the pin conductors 306a, 306b helps to minimize, or prevent, cross-talk between the pin conductors 306a, 306b and the pin conductors of vertically or horizontally proximate like connectors. In certain embodiments, the pin conductors 306a, 306b can be stacked horizontally or vertically to correspond to a placement of the socket contacts 106a, 106b. In certain embodiments, the pin conductors 306a, 306b are of equivalent lengths while in other embodiments the pin conductors 306a, 306b are of differing lengths.
Additional information about pin conductors and their positioning to minimize, or prevent, cross-talk can be found in U.S. Pat. No. 9,407,043 entitled “Balanced Pin and Socket Connectors” and U.S. Pat. No. 9,590,339 entitled “High Data Rate Connectors and Cable Assemblies that are Suitable for Harsh Environments and Related Methods and Systems.” Each of the noted patents is hereby incorporated by reference.
When assembling the fixed connector 300, the first ends 358 of each of the pin conductors 306a, 306b are inserted into pin cavity 324, and corresponding pin channels 325, in their offset positions; a divider 362, which comprises a portion of the rear plate 322, separates the second ends 360 of the pin conductors 306a, 306b within the pin cavity 324. The rear panel 304 is then secured to the body portion 302 of the fixed connector 300. The second ends 360 of the pin conductors 306a, 306b pass through the central location 352 at the rear panel 304 where the upper and lower stabilizers 350, 354 help maintain/fix the position of the pin conductors 306a, 306b relative to the body portion 302; the upper and lower stabilizers 350, 354 are received within the pin cavity 324. In certain embodiments, an interference fit occurs between the upper and lower stabilizers 350, 354 and the pin cavity 324 to assist in securing the rear panel 304 to the body portion 302 of the fixed connector 300. The pin stabilizers 356 press against each of the pin conductors 306a, 306b to ensure that they are fully, forwardly positioned within the pin channels of the fixed connector 300 as well as to maintain/fix their position.
The fixed connectors 300 can be configured in a simplex form or combined in a duplex form similar to that available with LC fiber optic connectors (see
In certain embodiments, when the free connector 100 and/or fixed connector 300 are configured in the LC style and/or footprint, one or both of the connectors 100, 300 can be provided with a blocking/keying feature, to prevent the insertion of the free connector 100 into an actual LC fiber optic adapter or LC fiber optic active device receptacle and/or to prevent an actual LC fiber optic connector from being inserted into the fixed connector 300. In the example of
The adapter 700 generally comprises a pair of fixed connectors 300 that are modified to be electrically and mechanically coupled to one another rather than being individually coupled to a circuit board. In certain embodiments, the adapter 700 comprises a two-piece component having a continuous body portion 702 that defines two ports 704 and an upper (or lower) panel 706 that is configured for coupling to the body portion 702. The body portion 702 defines an upper (or lower) channel 705 into which can be placed a single twisted pair of conductors 708, 710 where each has a pin contact first end 712 and a pin contact second end 714 that can be inserted into corresponding pin channels 716 formed in the body portion 702. The upper panel 706 can be configured with various outward extending stabilizing features to help position and/or maintain the position of the pin contacts 712, 714 in an offset orientation corresponding to the socket contacts 106a, 106b of the free connector 100 that will be received in each of the ports 704. The upper panel 706 can include outward extending tabs 718 or other type of mechanism for coupling the upper panel 706 to the body portion 702.
The pin contact 1002 includes a forward portion 1020 and a rear portion 1022 that can be electrically coupled to a conductor, e.g. conductor 10, in any suitable manner. The forward portion 1020 includes a first tapered face 1024 and a second tapered face 1026 opposite the first tapered face 1024. The forward portion 1020 further includes first and second tapered sides 1028, 1030 that connect the first tapered face 1024 and second tapered face 1026 to form a four-sided pyramid shape with a flattened apex 1027; the flattened apex 1027 having a rectangular or square cross-section; however other pin geometries, e.g., round, triangular, etc., are possible. In certain examples, the first and second sides tapered sides 1028, 1030 have bases that are narrower or wider than the bases of the first and second tapered faces 1024, 1026 thereby providing the rear portion 1022 of the pin contact 1002 with a rectangular cross-section while in other examples all sides and faces have equivalent bases providing the rear portion 1022 of the pin contact 1002 with a substantially square cross-section. A rectangular or square cross-section provides the rear portion 1022 of the pin contact 1002 a broader surface to make contact with the tuning fork receptacle contact 1000 should either the pin contact 1002 or the tuning fork receptacle contact 1000 become bent or warped in some way that might alter their original alignment; note that in certain embodiments a width w1 of the pin contact 1002 is wider than a width w2 of each respective spring arm 1006a, 1006b. Two pin contacts 1002 are used in the various connector embodiments describe herein.
Referring to
Referring to
Referring to
The forward connector body 1402 includes an elongate forward portion 1410 and a rear receiving portion 1412.
The elongate forward portion 1410 includes a first side face 1414 and a second side face 1416 as well as an upper face 1418 connecting the first side face 1414 and the second side face 1416. A lower face 1420 connected to the first side face 1414 is connected to the second side face 1416 via a chamfered face 1422. A forward face 1422 of the forward connector body 1402 includes a pair of openings 1424a, 1424b corresponding to contact receiving channels 1426a, 1426b; the openings 1424a, 1424b receive pin contacts of the fixed connector 1500 (see
In certain embodiments, the openings 1424a, 1424b have a center-line to center-line horizontal spacing of 1.2 mm and a center-line to center-line vertical spacing of 2.7 mm, e.g. a vertical to horizontal ration of 2.25:1 or a horizontal to vertical ratio of 0.44 to 1. In certain embodiments, a vertical height of the elongate forward portion 1410 is designed to be greater than the vertical height of a standard LC connector by an amount of greater than or equal to 1 mm; the change in vertical height preventing the free connector 1400 from being coupled with a standard LC fixed connector (jack/receptacle).
In certain embodiments, a horizontal width of the elongate forward portion 1410 is designed to be the same width of a standard LC connector enabling a density of a certain plurality of free connectors 1400 to be the same as the density of a same certain plurality of standard LC connectors such as in a panel setting where multiple connectors are provided in a single panel. In certain embodiments, a horizontal width of the free connector 1400 is alternatively, or additionally, greater (e.g. ≥1 mm) than the horizontal width of a standard LC connector to prevent the free connector 1400 from being coupled with a standard LC connector while the vertical height of the free connector 1400 is maintained as consistent with the vertical height of a standard LC connector. In certain examples, the chamfered face 1422 also prevents the free connector 1400 from being inserted within a standard LC connector.
The rear receiving portion 1412 of the forward connector body 1402 is unitary (e.g., molded as single unit) with the elongate forward portion 1410 of the forward connector body 1402. The rear receiving portion 1412 defines a central cavity 1432 that provides rear access to the contact receiving channels 1426a, 1426b of the elongate forward portion 1410. The central cavity 1432 receives the rear connector body 1408.
The metal frame 1404 of the free connector 1400 is a metal shell having a central cavity 1434 that is slideable over the rear receiving portion 1412 of the forward connector body 1402. The metal frame 1404 is held in place about the rear receiving portion 1412 through use of a pair of flex tabs 1436 that interface with the recesses 1428 of the elongate forward portion 1410 of the forward connector body 1402. Note that the metal frame 1404 is not in contact with the pair of electrical contacts 1406a, 1406b. The metal frame 1404 helps to prevent crosstalk between multiple free connectors 1400 that are in close proximity to one another, e.g. in a high density connector panel.
The pair of electrical contacts 1406a, 1406b are illustrated in
As noted with reference to
Referring to
The forward perspective view of the rear connector body 1408, provided in
The strain relief device 1409, shown in
An example embodiment of a fixed connector 1500, suitable to mate with the free connector 1400 (or other connectors described herein), is illustrated in
The housing body 1502 of the fixed connector includes a forward central channel 1510 that receives the free connector 1400. The forward central channel 1510 includes a first side face 1514 and a second side face 1516 connected by an upper face 1518. A lower face 1520 and chamfered face 1522 serve to also connect the first side face 1514 and the second side face 1516. The faces of the forward central channel 1510 correspond to those of the elongate forward portion 1410 of the free connector 1400. A notch 1524 is provided within the housing body 1502 to interface with the cantilevered latch 1430 of the free connector 1400. As shown in the
The metal frame 1504 of the fixed connector 1500 is a metal shell having a central cavity 1534 that is slideable over the housing body 1502. The metal frame 1504 is held in place about the housing body 1502 through use of a pair clips 1536 that interface with side notches 1538 of the housing body 1502. Note that the metal frame 1504 is not in contact with the electrical contacts 1506. The metal frame 1504 helps to prevent crosstalk between multiple fixed connectors 1500 that are in close proximity to one another, e.g. in a high density connector panel.
The pin contacts 1506 of the fixed connector correspond to the pin contacts 1002. Referring back to
Referring again to
While the first and second spring arms 1006a, 1006b are illustrated as having aligned contact points C and D, in other embodiments the contact points C and D on the first spring arm 1006a can be offset from the contact points C and D on the second spring arm 1006b. The two contact zones, and particularly, the disengagement zone, help to protect against an arcing “spark” that can occur when the plug, e.g., the pin contact 1002, is inserted/removed from the receptacle, e.g. the tuning fork receptacle contact 1000; the disengagement zone enables an arc, should it occur prior to full insertion (or upon final withdrawal) of the pin contact 1002 such that the final contact point, e.g. point D, which is vital for transmission of data, is not damaged. Arcing, if not addressed within the contact design, can cause damage to the contact and prevent data transmission through the plug and receptacle.
Referring now to
Referring to
The elongate forward portion 2310 includes a first side face 2314 and a second side face 2316 as well as an upper face 2418 connecting the first side face 2314 and the second side face 2316. A lower face 2420 additionally connects the first side face 2314 and the second side face 2316. A forward face 2323 of the forward connector body 2302 includes a pair of openings 2324a, 2324b corresponding to contact receiving channels 2326a, 2326b; the openings 2324a, 2324b receive pin contacts that electrically interface with the tuning fork contacts 2306a, 2306b. In certain embodiments, a recess 2328 is provided on each side face 2314, 2316 of the elongate forward portion 2310 to interface with and retain the metal frame 2304. Each recess 2328 includes a recessed notch 2329 to receive an interfacing tab 2344 of the metal frame 2304 to further ensure that the metal frame 2304 remains secured to the forward connector body 2302. However, other manners of interfacing with the metal frame 2304 can also be used. The elongate forward portion 2310 of the forward connector body 2302 also includes a cantilevered latch 2330.
In certain embodiments, the center of each opening 2324a, 2324b is offset from a vertical center line of the forward face 2323 by a distance A of 0.6 mm (center-to-center of 1.2 mm) and is offset from a horizontal center line of the forward face 2323 by a distance B of 1.35 mm (center-to-center of 2.7 mm). Further, the elongate forward portion 2310 of the free connector 2300, including the forward face 2323, has a width W of ˜4.5 mm and a height H of ˜5.6 mm. Notably, a fiber optic LC connector has a square forward face with dimension s of 4.5 mm×4.5 mm. As such the free connector 2300 has a width similar to the LC connector but a slightly larger height, e.g., ≥1 mm, to prevent the free connector 2300 from being inserted into an LC fixed connector (or LC adapter) yet provide a size similar to an LC connector enabling similar density of free connectors in virtually the same amount of space that can accommodate a corresponding density of LC connectors such as in connector panel setting.
The rear receiving portion 2312 of the forward connector body 2302 is unitary (e.g. molded as a single unit) with the elongate forward portion 2310 of the forward connector body 2302. The rear receiving portion 2312 defines a central cavity 2332 that provides rear access to the contact receiving channels 2326a, 2326b of the elongate forward portion 2310; the central cavity 2332 is provided with a chamfered keying feature 2329 to assist in the aligning the rear connector body 2308. Each side face 2331, 2333 of the rear receiving portion 2312 includes a slot 2335 to interface with the rear connector body 2308 and an outward extending tab 2337 to interface with the metal frame 2304.
The metal frame 2304 of the free connector 2300 comprises a metal shell body 2340 having a central cavity 2334 that is slideable over the rear receiving portion 2312 of the forward connector body 2302. The metal frame 2304 is held in place about the rear receiving portion 2312 through use of a pair of flex tabs 2342 that interface with corresponding recesses 2328 of the forward connector body 2302. Each of the flex tabs 2342 includes in inward facing tab 2344 to interface with recessed notch 2329 of the forward connector body 2302. Each side face 2346, 2348 of the metal frame 2304 includes an opening 2350 to interface with outward extending tab 2337 of the forward connector body 2302. Each point of interface between the metal frame 2304 and the forward connector body 2302 assists in securing the metal frame 2304 to the forward connector body 2302. Each side face 2346, 2348 of the metal frame 2304 is additionally equipped with an inward directed beam 2352 (e.g. shield beam) to establish an electrical interface with a cable shield (foil or drain wire) of the cable carrying the single pair of conductors (e.g., see
Electrical contacts 2306a, 2306b (see
As noted with reference to
Referring to
The rear connector body 2308 of the free connector 2300 includes a contact receiving portion 2380 that extends forward from the rear body portion 2360. The contact receiving portion 2380 is essentially divided into a first half 2382a to accommodate the upper positioned electrical contact 2306a and a second half 2382b to accommodate the lower positioned electrical contact 2306b. The first half 2382a of the contact receiving portion 2380 includes an upward channel 2384 that is contoured to direct the end of a conductor upward (e.g., a 90 deg. bend) to extend through a contact receiving slot 2386 and beyond an upper recess 2388. (See
In certain embodiments, the rear connector body 2308 of the free connector has channels, e.g. upward channel 2384 and downward channel 2390 that are sized to accommodate a specific gauge of a conductor. As such, a plurality of rear connector bodies 2308, each designed to accommodate a different conductor gauge, may be used interchangeably with the forward connector body 2302, metal frame 2304 and contacts 2306a, 2306b. To facilitate the interchangeability, the different rear connector bodies 2308 are color-coded or otherwise designated to indicate which conductor gauge is suitable to the respective rear connector body 2308.
As noted herein, the metal frame 2304 of the free connector 2300 includes inner directed beams 2352 that comprise shield beams. Each of the shield beams 2352, one on each side of the metal frame 2304 of the free connector 2300, apply a normal force to the foil and/or drain wire of a conductor; in certain embodiments the drain wire may only be on one conductor side or may be on both conductor sides. Note that the cable jacket surrounding the pair of conductors coupled to the electrical contacts 2306a, 2306b of the free connector 2300 will be within the rear connector body 2308 of the free connector 2300 and the foil shield of the cable (and/or the drain wire) will be folded back on the outside surface of the cable jacket such that the conductive surface of the foil (and/or the drain wire) will be facing the shield beams 2352. During assembly of the free connector 2300, insertion of the rear connector body 2308 into the metal frame 2304 and forward connector body 2302 will cause the shield beams 2352 to move outward then return inward to extend through elongate openings 2374 of the rear connector body 2308 to make contact with the shield foil (and/or drain wire) of the cable (e.g., cable 10) and establish a grounding path. In some cables sizes, the shield beams 2352 may additionally function as a locking feature to prevent the rear connector body 2308 from moving rearward. In certain embodiments, the metal frame 2304 serves as only as a structural element of the free connector 2300 in that, in certain applications, shielding of the connector is not required.
The free connector 2300 is designed to interface with a fixed connector or adapter, similar to those described herein, that incorporate cooperating dimensions and keying features. Further, the free connector 2300 can be incorporated in a patch cord and can be incorporated into any suitable configuration requiring the functionality of the free connector 2300. A fixed connector and/or adapter suitable for interfacing with the free connector 2300 preferably includes pin contacts 1002 (see
An example of a fixed connector 2500, suitable to mate with free connector 2300 is illustrated in
Referring to
The housing body 2502 of the fixed connector 2500 includes first and second openings 2526 and 2528 to channels (e.g., channel 2526a in
Referring to
The pin contacts 2506a, 2506b of the fixed connector 2500 correspond to the pin contacts 1002. Referring back to
Referring now to
Each of pin contacts 2506a, 2506b, though offset in both the x- and y-direction, are designed to be of the same length and have a return loss that is maximized by being matched to the return loss of the conductors (e.g. conductors 12, 14); in certain embodiments, this return loss is approximately 50 ohms. In certain preferred embodiments, there is a 6.6 mm pitch between side-by-side fixed connectors 2500.
b and 37A-37B help to illustrate the movement of the spring arms 1006a, 1006b of each of tuning fork receptacle contacts 2306a, 2306b as pin contacts 2506a, 2506b are inserted/withdrawn (i.e., the free connector 2300 is mated with the fixed connector 2500). Each “A” figure illustrates the pin contacts 2506a, 2506b, as they are partially inserted and each “B” figure illustrates the pin contacts 2506a, 2506b as being fully inserted within tuning fork receptacle contacts 2306a, 2306b.
It should be noted that, while free connector 2300 is described as using a tuning fork receptacle contact 2306, various other types of electrical contacts may also be used to interface with the pin contacts 2506 of the fixed connector 2500. For example, a socket contact, a beam contact, an arched beam contact, a single spring arm contact, etc. might be used.
It will be appreciated that aspects of the above embodiments may be combined in any way to provide numerous additional embodiments. These embodiments will not be described individually for the sake of brevity.
While the present invention has been described above primarily with reference to the accompanying drawings, it will be appreciated that the invention is not limited to the illustrated embodiments; rather, these embodiments are intended to disclose the invention to those skilled in this art. Note that features of one or more embodiments can be incorporated in other embodiments without departing from the spirit of the invention. In the drawings, like numbers refer to like elements throughout. Thicknesses and dimensions of some components may be exaggerated for clarity.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. It will also be understood that the terms “tip” and “ring” are used to refer to the two conductors of a differential pair and otherwise are not limiting.
Spatially relative terms, such as “under”, “below”, “lower”, “over”, “upper”, “top”, “bottom” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “under” or “beneath” other elements or features would then be oriented “over” the other elements or features. Thus, the exemplary term “under” can encompass both an orientation of over and under. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Well-known functions or constructions may not be described in detail for brevity and/or clarity. As used herein the expression “and/or” includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including” when used in this specification, specify the presence of stated features, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, operations, elements, components, and/or groups thereof.
Herein, the terms “attached”, “connected”, “interconnected”, “contacting”, “mounted” and the like can mean either direct or indirect attachment or contact between elements, unless stated otherwise.
Although exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.
This application is a National Stage Application of PCT/US2019/019660, filed on Feb. 26, 2019, which claims the benefit of U.S. Patent Application Ser. No. 62/635,227, filed on Feb. 26, 2018, and claims the benefit of U.S. Patent Application Ser. No. 62/671,738, filed on May 15, 2018, and claims the benefit of U.S. Patent Application Ser. No. 62/693,583, filed on Jul. 3, 2018, the disclosures of which are incorporated herein by reference in their entireties. To the extent appropriate, a claim of priority is made to each of the above disclosed applications.
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| PCT/US2019/019660 | 2/26/2019 | WO | 00 |
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