Shielded coaxial connector
09793660 · 2017-10-17
Assignee
Inventors
Cpc classification
International classification
Abstract
A coaxial connector has a selectively engageable radio frequency interference shield.
Claims
1. A switched coaxial cable connector, the connector comprising: a connector body and a connector body central axis; a signal path and a ground path; the ground path including the body; the signal path including a first conductor and a second conductor; one of the conductors moveable with respect to the other conductor for selectively completing the signal path through the connector; one of the conductors moveable with respect to the other conductor in response to the connector engaging a mating connector; a rotatable fastener for engaging a female connector at one end and a port for engaging a male connector at an opposed end; a moveable nose for projecting from the body into a fastener cavity; and, the moveable nose carrying the movable conductor.
2. The connector of claim 1 wherein the stationary conductor includes opposed socket ends, a first of the socket ends for receiving the center conductor of a mating connector and the second of the socket ends for mating with the moving conductor.
3. The connector of claim 2 further including a spring that tends to push the nose into the fastener cavity.
4. The connector of claim 3 wherein the spring is proximate the fastener end of the connector.
5. The connector of claim 4 wherein the spring encircles the moving conductor.
6. A coaxial connector comprising: a body having first and second opposed ends; movable and fixed spring plates within the body; the movable spring plate carries a first conductor having projecting and non-projecting pin ends; a spring bearing on the movable spring plate urges the projecting pin end to project from the body; and, a second conductor having a pin end and a socket end, the pin end fixedly projecting from the body and the socket end for mating along a body longitudinal centerline with the first conductor non-projecting pin end; wherein during mating with a mating connector, the first conductor is pushed toward the second conductor and the first conductor non-projecting pin mates with the second conductor socket end such that electrical signal continuity is established through the connector and the spring encircles the first conductor.
7. A coaxial connector comprising: a body having first and second opposed ends; movable and fixed spring plates within the body; the movable spring plate carries a first conductor having a projecting socket end and a non-projecting pin end; a spring bearing on the movable spring plate urges the projecting socket end to project from the body; and, a second conductor having a pin end and a socket end, the pin end fixedly projecting from the body and the socket end for mating along a body longitudinal centerline with the first conductor non-projecting pin end; wherein during mating with a mating connector, the first conductor is pushed toward the second conductor and the first conductor non-projecting pin mates with the second conductor socket end such that electrical signal continuity is established through the connector and the spring encircles the first conductor.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(18) The disclosure provided in the following pages describes examples of some embodiments of the invention. The designs, figures and description are non-limiting examples of the embodiments they disclose. For example, other embodiments of the disclosed device and/or method may or may not include the features described herein. Moreover, disclosed advantages and benefits may apply to only certain embodiments of the invention and should not be used to limit the disclosed invention.
(19) As used herein, the term “coupled” includes direct and indirect connections. Moreover, where first and second devices are coupled, intervening devices including active devices may be located therebetween.
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(23) Typical coaxial cable features will be known to persons of ordinary skill in the art. For example, an embodiment includes a center conductor 220 surrounded by a dielectric material 222, the dielectric material being surrounded in turn by one or two shields 224 such as a metallic foil wrapped in a metallic braid. An outer insulative jacket 226 such as a polyvinylchloride jacket encloses the conductors.
(24) As seen, the open end of the splice 207 provides an opportunity for unwanted RF ingress 208. In particular, unwanted RF ingress 206 is shown entering an exposed end of the splice 207 where it is conducted by a CATV signal conductor 304 through the connector and to a signal conductor 220 of the attached CATV coaxial cable.
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(26) Within and at opposed ends of the cylindrical body 304 are insulators 306, 308, each having a central socket 310, 312 for receiving opposed ends 316, 318 of a tubular seizing pin 304. Resilient tines located in each end of the seizing pin 370, 372 provide a means for making a secure electrical contact with a conductor (not shown) inserted in either end of the seizing pin. Splice internals are typically fixed in place by rolling an end of the body 324. In some embodiments, rolling a body end 324 or an interference fit fixes an annular plug 323 adjacent to the second end insulator 312.
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(33) A stationery contact assembly 804 is near a first end of the body 808 and a movable contact assembly 806 is near a second end of the body 810. The stationery contact assembly is at least partially within the body 802 and the movable contact assembly is only partially within the body such that a biasing force Fb acting on the movable contact assembly tends to separate a stationery contact 805 of the stationery contact assembly and a movable contact 807 of the movable contact assembly. In various embodiments, a front support 812 fixedly couples the stationery contact assembly to the body while a rear support enables motion of the moving contact relative to the body. For example, a sliding contact rear support 814 enables the movable contact to slide relative to the body. And, in various embodiments one or both of the front and rear supports provide an electrical insulating barrier between the body 802 and at least one of the contacts 805, 807.
(34) A feature of this connector is seen in
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(36) The stationery contact assembly 804 has a generally tubular shape and is fitted into the first body bore 919. The contact assembly includes a stationery conductor assembly 940 and a stationery conductor assembly carrier 980.
(37) A first end of the carrier 981 is positioned near the first end of the body 808 and a second end of the carrier 961 extends into the body. A socket of the carrier 966 holds the conductor assembly 940. The conductor assembly 940 extends between and includes the stationery contact 805 at one end and an accessible contact 916 with inwardly directed tines 956 at an opposed end. A stationery entrance of the carrier 933 provides access to the accessible contact.
(38) The movable contact assembly 806 has a generally tubular shape and is fitted into the second body bore 921. The movable contact assembly includes a movable conductor assembly 942 and a movable conductor assembly carrier 982.
(39) A first end of the carrier 983 protrudes from the body 802 and a second end of the carrier 962 extends into the body. A socket of the carrier 968 holds the conductor assembly 942. The conductor assembly 942 extends between and includes a) the movable contact 807 at one end with inwardly directed tines 957 and an accessible contact 918 with inwardly directed tines 958 at an opposed end. A movable entrance of the carrier 935 provides access to the accessible contact.
(40) In various embodiments, the movable contact assembly 806 is separated from the stationery contact assembly 804 by a resilient device or material such as a spring. In an embodiment, a coil spring 902 is captured between an end of the movable carrier 988 and fixed surface such as a radial shoulder of the stationery carrier 986. As skilled artisans will recognize, the function of springing the stationery and movable contact assemblies apart can be accomplished in other ways with similar effect. For example, the contact assemblies may interoperate via telescoping arrangement as shown or they may have no such engagement.
(41) A feature of this connector is seen from
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(43) A first bore of the body 1019 receives the stationery contact assembly 804 and a second bore of the body 1021 receives the movable contact assembly 806. In various embodiments the bores 1019, 1021 have similar or the same diameters and in some embodiments the bore is a single bore.
(44) The stationery contact assembly 804 has a generally tubular shape and is fitted into the first body bore 1019. The contact assembly includes a stationery conductor 1026 and a stationery conductor carrier 1008.
(45) A first end of the carrier 1081 is positioned near the first end of the body 808 and a second end of the carrier 1061 extends into the body. A socket of the carrier 1066 holds the conductor 1026. The conductor 1026 extends through the carrier end 1081 and through a connector base passageway 1033. The conductor's body enclosed end is the stationery contact 805.
(46) The movable contact assembly 806 has a generally tubular shape and is fitted into the second body bore 1021. The movable contact assembly includes a movable conductor assembly 942 and a movable conductor assembly carrier 982.
(47) A first end of the carrier 983 protrudes from the body 802 and a second end of the carrier 962 extends into the body. A socket of the carrier 968 holds the conductor assembly 942. The conductor assembly 942 extends between and includes the movable contact 807 at one end and an accessible contact 918 with inwardly directed tines 958 at an opposed end. A movable entrance of the carrier 935 provides access to the accessible contact.
(48) In various embodiments, the movable contact assembly 806 is separated from the stationery contact assembly 804 by a resilient device or material such as a spring. In an embodiment, a coil spring 902 is captured between an end of the movable carrier 988 and fixed surface such as a radial shoulder of the stationery carrier 1086. As skilled artisans will recognize, the function of springing the stationery and movable contact assemblies apart can be accomplished in other ways with similar effect. For example, the contact assemblies may interoperate via telescoping arrangement as shown or they may have no such engagement.
(49) A feature of this connector is seen in
(50) As skilled artisans will recognize, contact arrangements shown in
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(53) A first bore of the body 1119 receives the stationery contact assembly 804 and a second bore of the body 1121 receives the movable contact assembly 806. In various embodiments, the bores 1119, 1121 have similar or the same diameters and in some embodiments the bore is a single bore.
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(55) The moving contact assembly 806 has a generally tubular shape and is fitted into the second body bore 1121. This contact assembly includes a moving contact carrier 1178, the moving contact 807, and an elongated pin 1180. The pin is electrically coupled to the moving contact and fixed to the carrier such that it projects beyond a fastener mouth 1181.
(56) A first end of the movable carrier 1183 protrudes from the body 802 and the second end of the carrier 1184 extends into the body. A socket of the carrier 1168 holds the moving contact 807 and the elongated pin 1180.
(57) In various embodiments, the movable contact assembly 806 is separated from the stationery contact assembly 804 by a resilient device or material such as a spring. In an embodiment, a coil spring 1102 is captured between an end of the movable carrier 1184 and a fixed surface such as a part of the stationery contact assembly 804. As skilled artisans will recognize, the function of springing the stationery and movable contact assemblies apart can be accomplished in other ways with similar effect. For example, the contact assemblies may interoperate via telescoping arrangement as shown or they may have no such engagement.
(58) A feature of this connector is seen in
(59) Embodiments of the invention are configured as adapters for use with existing coaxial connector connectors. For example, panel mounted coaxial connector ports can be protected against RF ingress using embodiments of the invention such as the adapter discussed below.
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(61) A first bore of the body 1219 receives the stationery contact assembly 804 and a second bore of the body 1221 receives the movable contact assembly 806. In various embodiments, the bores 1219, 1221 have similar or the same diameters and in some embodiments the bore is a single bore.
(62) The stationery contact assembly 804 has a generally tubular shape and is fitted into the first body bore 1219. The contact assembly includes a stationery conductor 1226 and a stationery conductor carrier 1208.
(63) A first end of the carrier 1281 is positioned near the first end of the body 808 and a second end of the carrier 1261 extends into the body. A socket of the carrier 1266 holds the conductor 1226. The conductor 1226 extends through the carrier end 1281 and in some embodiments through a connector body annular end wall 1293. The stationery conductor's enclosed end is the stationery contact 805.
(64) The movable contact assembly 806 has a generally tubular shape and is fitted into the second body bore 1221. The movable contact assembly includes a movable conductor assembly 1242 and a movable conductor assembly carrier 1282.
(65) A first end of the carrier 1283 protrudes from the body 802 and a second end of the carrier 1262 extends into the body. A socket of the carrier 1268 holds the conductor assembly 1242. The conductor assembly 1242 extends between and includes a) the movable contact 807 with inwardly directed tines 1257 at one end and b) an accessible contact 1218 with inwardly directed tines 1258 at an opposed end. A movable entrance of the carrier 1235 provides access to the accessible contact.
(66) In various embodiments, the movable contact assembly 806 is separated from the stationery contact assembly 804 by a resilient device or material such as a spring. In an embodiment, a coil spring 1202 is captured between an end of the movable carrier 1288 and fixed surface such as a radial shoulder of the stationery carrier 1286. As skilled artisans will recognize, the function of springing the stationery and movable contact assemblies apart can be accomplished in other ways with similar effect. For example, the contact assemblies may interoperate via telescoping arrangement as shown or they may have no such engagement.
(67) Comparing this connector with the connector of
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(69) The moveable conductor 1252 is carried in a moving nose 1245 that is encircled by a fastener 1243. A retainer ring 1244 inserted in the body includes an external shoulder for mating with the fastener and an internal shoulder for mating with the nose.
(70) The moveable conductor 1252 has a first pin end 1251 and a second pin end 1255. The first pin end is pointed toward the stationary contact 1272 and the second pin end projects from the fastener for mating with a female connector.
(71) The stationary conductor 1272 has first and second socket ends 1271, 1273. The first socket end is supported by a first insulator 1270 at the port end 1278 and the second socket is supported by a second insulator 1257 located between the first insulator and the nose 1245.
(72) A spring such as a coil spring 1253 encircling the connector centerline x-x is located between the second insulator 1257 and the nose 1245. The spring is for biasing the nose to project from the body 1256 into a fastener cavity 1275.
(73) As seen in
(74) When the nose 1245 is pressed into the body 1256, the moving and stationary conductors 1272, 1252 are, via respective pin 1251 and socket 1273 ends, mated 1248 such that electrical continuity for transporting a signal through the connector is provided from the moving connector second pin end 1255 to the stationary conductor first socket end 1271.
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(76) The moving contact assembly 806 has a generally tubular shape and is fitted into a second bore of the body 921. The moving contact assembly includes the moving conductor assembly 942 and a moving conductor assembly carrier 1382. Adjacent to a first end of the carrier 1383 is a generally tubular nose 1310 protruding from the body 802. A second end of the carrier 1362 has a generally tubular shape and is separated from the nose by a reduced diameter waist 1313. The waist is, in various embodiments, made from one more materials including an insulating material(s).
(77) Portions of the retractable coaxial shield assembly 1399 are formed by a coaxial shield spring 1316 and the moving conductor assembly carrier 806. In various embodiments, the spring shield encircles one or both of the moving conductor assembly carrier 1382 and the conductor of the moving contact assembly 942. Details of this spring are shown in detail views 1350 and 1354. In particular, detail view 1350 shows the shield spring has a collar 1351 adjoining inwardly pointed fingers 1353 with finger tips 1355. Detail view 1354 shows a view of the shield spring looking into the open collar end of the spring.
(78) In various embodiments, the shield spring 1316 is mounted such that its fingers 1353 are moved and/or lifted up by movement of the conductor carrier nose 1310 toward the first end of the connector 808. With the nose in an extended position, the spring finger tips 1355 are initially at rest against an outer surface of the waist 1322. As the nose is pushed into the body, a shoulder of the moving contact assembly near the waist 1312 lifts the spring fingers out of a space above the waist 1318 and toward an inner surface of the body 1317. In similar fashion, as the moving contact assembly returns to its earlier extended position, the spring fingers descend toward the waist until the finger tips rest on the waist outer surface.
(79) In some embodiments, the shield spring collar 1351 encircles and touches the nose outer surface 1330. And, in some embodiments the shield spring collar encircles the nose outer surface but does not touch the outer nose surface. In connector embodiments utilizing an annular end plug 1387, the shield spring collar, encircles the plug in some embodiments while in others it lies at least partially within the plug.
(80) Because the shield spring 1316 is an energy shunt, it is electrically conductive and there is electrical continuity between the shield spring and the body 802. In addition, the distance between the moving conductor assembly 942 and the deployed finger tips of the shield spring 1355 as determined by a waist thickness is, in various embodiments, in the range of about 0.2 to 1.0 millimeters and in an embodiment about 0.5 millimeters. This separation distance or waste thickness is chosen to promote antenna like action of the spring shield with respect to the moving conductor assembly.
(81) A feature of this connector is seen in
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(84) The connector has first and second ends 1315, 1317 and includes a hollow connector body 1360 having first and second ends 1361, 1362 and a central longitudinal axis x-x. The connector body houses a stationery contact assembly 1363 with a stationery contact 1364 and a moveable contact and/or moveable contact assembly 1365 with a moveable contact 1366. Generally opposed ends of the moveable contact form a movable contact pin 1388 and a movable contact center pin receiver 1387. Slidingly supporting the moving contact is a base 1367 supported by and fixed with respect to a connector body inner wall 1369. As shown, the moving contact passes through a central aperture of the base 1368.
(85) The connector body 1360 contains a spring such as a coil spring 1378 that extends in a body middle section 1371 between stationery and moving spring plates 1376, 1379. The stationery spring plate includes a central aperture 1377 through which the moving contact pin 1388 moves to engage a bore 1381 of the stationery contact 1364. A stationery conductor 1372 is mated with and/or integral with the stationery contact 1364.
(86) Opposite the spring side of the stationery spring plate 1382, a socket 1373 projects from the spring plate. The socket receives and supports the stationery contact 1364 such that the stationery contact bore 1381 is aligned with the moving contact pin 1388. A stationery contact housing 1374 surrounds the stationery contact and is at least partially inserted in a body end bore 1370 near the second end 1362 of the connector body 1360. A portion of the housing protruding from the connector body 1384 includes and/or is integral with a stationary contact distal end support 1375. An end support central aperture 1385 supports one or both of the stationery contact and the stationery conductor 1372.
(87) Opposite the spring side of the moving spring plate 1386, a spring plate rest 1367 is fixed relative to and supported by the connector body inside wall 1369. Central apertures 1380, 1368 through the moving spring plate 1379 and through the rest 1367 provide support for the moving contact 1366 which passes through the apertures. In various embodiments, the rest aperture provides a sliding engagement with the moving contact.
(88) A distal end of the moving contact includes a bore 1778 having a longitudinal centerline about coincident with the x-x axis. Insertion of a mating male connector (see for example the connector and center pin of the IEC male connector of
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(91) The connector has first and second ends 1315, 1317 and includes a hollow connector body 1393 having first and second ends 1361, 1362 and a central longitudinal axis x-x. The connector body houses a stationery contact assembly 1363 with a stationery contact 1364 and a moveable contact and/or moveable contact assembly 1394 with a moveable contact 1390. Generally opposed ends of the moveable contact form a movable contact pin 1392 and a movable contact center pin 1391. Slidingly supporting the moving contact is a base 1367 supported by and fixed with respect to a connector body inner wall 1369. As shown, the moving contact passes through a central aperture of the base 1368.
(92) The connector body 1393 contains a spring such as a coil spring 1378 that extends in a body middle section 1371 between stationery and moving spring plates 1376, 1379. The stationery spring plate includes a central aperture 1377 through which the moving contact pin 1392 moves to engage a bore 1381 of the stationery contact 1364. A stationery conductor 1372 is mated with and/or integral with the stationery contact 1364.
(93) Opposite the spring side of the stationery spring plate 1382, a socket 1373 projects from the spring plate. The socket receives and supports the stationery contact 1364 such that the stationery contact bore 1381 is aligned with the moving contact pin 1392. A stationery contact housing 1374 surrounds the stationery contact and is at least partially inserted in a body end bore 1370 near the second end 1362 of the connector body 1393. A portion of the housing protruding from the connector body 1384 includes and/or is integral with a stationary contact distal end support 1375. An end support central aperture 1385 supports one or both of the stationery contact and the stationery conductor 1372.
(94) Opposite the spring side of the moving spring plate 1386, a spring plate rest 1367 is fixed relative to and supported by the connector body inside wall 1369. Central apertures 1380, 1368 through the moving spring plate 1379 and through the rest 1367 provide support for the moving contact 1390 which passes through the apertures. In various embodiments, the rest aperture provides a sliding engagement with the moving contact.
(95) A distal end of the moving contact includes a center pin such as a bull nose center pin 1391 having a longitudinal centerline about coincident with the x-x axis. Connection with a mating female connector (see for example the IEC female connector of
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(97) As skilled artisans will recognize, contact parts including the stationery conductor 1372, stationery contact 1364, and moving contact 1366, 1390 will be made from one or more electrically conductive materials. And, as skilled artisans will recognize, electrically insulating materials will typically support these connector center conductors, polymer(s) for example might be used to fabricate the stationery contact end support 1375, the stationery spring support plate 1376, the moving spring support plate 1379, and the rest 1367. In various embodiments, the connector body 1360, 1393 and stationery contact housing 1374 will be made from materials including electrically conductive materials to allow continuity of a ground signal through the connector. In an embodiment, metal(s) including copper form the stationery conductor 1372, the stationery contact 1364, and the moving contact 1366, 1390.
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(100) The moving conductor 1395 is carried by the moving spring plate 1379 and includes first and second pin ends 1391, 1392. The first pin end is selectively projecting from the connector body 1393 and the second pin end is for mating with the second conductor 1396.
(101) The stationary conductor 1396 is supported by one or both of the stationary spring plate 1376 and the socket support 1397 and includes a pin end 1372 and a socket end 1381. The pin end is for fixedly projecting from the connector body and the socket end is for selectively mating with the moving conductor 1395 second pin end 1392.
(102) As seen in
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(104) The moving conductor 1398 is carried by the moving spring plate 1379 and includes a first socket end 1387 and an opposed pin end 1388. The socket end is selectively projecting from the connector body 1360 and the pin end is for mating with the second conductor 1396.
(105) The stationary conductor 1396 is supported by one or both of the stationary spring plate 1376 and the socket support 1397 and includes a pin end 1372 and a socket end 1381. The pin end is for fixedly projecting from the connector body and the socket end is for selectively mating with the moving conductor 1398 pin end 1388.
(106) As seen in
(107) Turning now to
(108) The connector body 1402 extends between first and second ends 1408, 1410 and includes a seizing pin 1404 supported at the first end by a stationery carrier 1460 located in a first bore of the body 1419 and supported at the second end by a moving carrier 1462 located in a second bore of the body 1421.
(109) First and second contacts of the seizing pin 1416, 1418 are inserted in opposed ends 1464, 1466 of through holes in the stationery and moving carriers 1463, 1465. The seizing pin contact in the moving carrier 1418 is slidable in the through hole 1465 and is acted on by a spring 1420. One end of the spring presses on an annular face of the moving contact face 1426. Another end of the spring presses on an inwardly turned shoulder at a mouth of the moving carrier through hole mouth 1424. Action of the spring tends to hold a moving carrier rim 1439 against an inwardly turned shoulder at a mouth of the body 1437.
(110) RF shielding is provided by a retractable coaxial shield spring 1416. Details of this spring are shown in detail views 1450 and 1454. In particular, detail view 1450 shows the shield spring has a collar 1451 adjoining outwardly pointed fingers 1453 with finger tips 1455. Detail view 145r shows a view of the shield spring looking into the open collar end of the spring.
(111) In various embodiments, the shield spring 1416 is mounted such that its fingers 1453 are extended radially outward when a carrier nose 1411 is extended. When the nose is pressed into the body 1402, it slides along the seizing pin and captures the shield spring fingers between the seizing pin and the bore of the moving carrier 1465. In various embodiments, the shield spring collar is fixed with respect to the seizing pin such as by soldering, by collar mechanical features that interengage with seizing pin mechanical features, and the like.
(112) As with the first coaxial shielding spring of
(113) As skilled artisans will recognize, contact arrangements shown above are changed in different embodiments.
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(115) While various embodiments of the present invention have been described above, it should be understood that they are presented by way of example only, and not limitation. It will be apparent to those skilled in the art that various changes in the form and details can be made without departing from the spirit and scope of the invention. As such, the breadth and scope of the present invention should not be limited by the above-described exemplary embodiments, but should be defined only in accordance with the following claims and equivalents thereof.