DE1615551A1 - Coaxial electrical connector for coaxial electrical cables - Google Patents

Description

ACP IFCOEPOEATED
Harrisburg, Pennsylvania TJ. S _e A.

Equiaxed electrical connection terminal for people with disabilities

electrical cables - ■ - '' ■

Priority March 21, 1963 - U.S. "S.A. - Serial No, 266 973

The present invention relates to equiaxed electrical connections. binding clamps and in particular has improved- Dichtungsiaerlaaa - Ie for the subject, which at. Such connecting terminals are intended to provide protection against the disruption of the connection as a result of moisture or corrosive media, which have access to the connection point during operation. - ^:

A coaxial electrical connection terminal according to the invention for an equiaxed cable that has a middle conductive core and one separated from this soul by an insulating material has a conductive sheath, consists of an insulating insert, which is fitted into a tubular conductive jacket, a middle conductive pin that goes into an axial hole of the insert is attached iand protrudes to the front, where the forward ends of the tubular jacket and the center pin are suitable, mxt: the .in a complementary manner-trained parts to be mated together with a connecting terminal, and where the

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rear end of the center pin a hole for receiving the Has cable core; the insert is facing each other Recesses formed which form thin uninterrupted wall parts of the insert in the cage of the central pin, and the shell has opposed openings which correspond to the recesses to provide access for pressure jaws to allow the pin to be pressed around the cable core through the thin wall portions of the insert; the rear end of the tubular jacket is formed with an extension to receive the conductive cable jacket outside, the is attached to this extension by means of an external clamping part; an elastically deformable annular seal is attached to the end of the rear extension of the jacket and disposed around the circumference thereof, on the rearward facing surface of the extension and on the insulation of the cable inside to lie against the conductive cable jacket »

When the device is in operation, the conductive cable jacket is pressed against the seal at the rear end of the extension so that that the 'seal against the rearward facing surface of the extension and pressed against the insulation of the cable inside the cable jacket, thereby effectively closing the connecting terminal against the ingress of moisture or corrosive media to be sealed from the cable entry end.

The invention is described below by way of example with reference to the accompanying drawings, some of which are schematic, in which ■

- Fig. 1 is a longitudinal section of an equiaxed connecting clamp which is arranged on an equiaxed conductor,

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and "in the case of a part of one with the connecting terminal Matching connection arrangement in dashed lines Lines shown is '■'.

Pig. 2 a partial cross-section along the line 2-2 in .Fig. 1 a central part of the arrangement is,

ELg. 3 is a perspective view of that shown in FIG Arrangement of the prepared end of an equiaxed cable,

4 shows an enlarged partial section of a sealing area is the arrangement shown in Figure 1 and

FIG. 5 partial sectional views of part of the shown in FIG. and 6

provided the sealing area before and after pressing

are.

In the arrangement 10 of FIG. 1, an equiaxed conductor 100 consists of an outer conductive jacket 104 and an inner conductive core 110, which are arranged in the same axis and separated from one another by an insulation 106. The cable jacket 104 is located within an insulation 102. The assembly 10 comprises an outer conductive jacket 30 and a central conductive pin 40 which are in electrical and mechanical connection with the conductors 104 and 110, respectively. Those areas of the. Connection arrangement requiring a seal ^ egen v-moisture or corrosive Lledien erx'oräerii, sin /., 'Iu' -. 'I ^. 1 • j.ilti'enein ni-c 0.,. Op and ü .. _: υsigns, --er ^ ereicli J "ατεΐ ^ ΐΐ the verbi '-_ \ vair dos laittlcren leading otiftes <-0 nit .. \ er.i .iti:. 't of ausojairienpas; .end connection a :: ori: vm_ · -.-.ar., which-i: ^ /' estrlrchcl ^ en'Liiiien r; ecei £; t is. Jer area G ^1. "S" -. 'Llt ax A-i5rüc ". ::: or-e -... es r.it"; leren head 11.0. ■ .til represents the rVtirZt 4-0 . he B rich _J; '_ s-t AEIE. otelle des IZabel entry ± ii die 7 ·? 7 * "" χ: ια "_. / sarlerEieiianorunuiic ,. an ler Jie G-eiahr des

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Entry of moisture and / or of corrosive media e.g. through small openings or breaks in the outer cable insulation at L and along the illustrated dashed line over the metal mesh 104, which acts as a kind of wick which attracts moisture to the connector terminal assembly.

The outer jacket 30 of the connector has a front portion 12, a central portion 33 and a rear extension 50 . The front portion 12 is in the form of a socket with an internal bore 14 the diameter of which corresponds to the external diameter of an insulating insert 84 which extends forwardly from the mating clamp half shown in dashed lines. At its inner end, the bore 14 is formed with an annular shoulder 16 and extends from this further to the rear through the central part 33 as a bore 31 with a reduced diameter. An insulating insert 36 of generally cylindrical shape is closely fitted in the bore 31. The insert piece 36 is formed with opposing recesses 38 in its middle part.

The middle section 33 of the jacket 30 is opposite one another Access openings 34 formed which are aligned with the corresponding recesses 38 to thereby provide access for pressing jaws for pressing the middle pin 40 against the Conductor 110 to form through thin wall parts of the insert 36 to the bottom of the recesses 38. The wedge part 33 is on his rear end provided with an outwardly protruding flange 46 which engages with a clamping bushing, not shown for attaching the matching connecting clamps

Men arrangements 10, 80 serve to each other. . _{| iSMÄ} , j

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The rear end of the bore 31 is conically tapered at 48 to a bore of smaller diameter which runs rearwardly through the rearward extension 50 of the jacket 30. The insulating insert 36 comprises a rear socket-shaped. Extension 37 »which is fitted into the bore of the jacket extension 50, and this socket-shaped extension 37 "& βΛ, an inner bore 39 »which has an inner diameter which is almost the same as the outer diameter of the insulation 106» The insert 36 is in the Bore 31 is arranged so that a rear conical part is seated in the conical taper 48 to prevent rearward movement of the insert, and that the socket-shaped extension 37 extends rearward within the extension 50 of the shell 30.

The shell part 50 forms a pressure support and is on the outside with a Series of annular sinker notches 52 formed, which a · serve increased gripping effect with respect to the cable braid 104, the arranged around the part 50 and attached to the extension 50 by means of, an outer clamping ring 60 is pressed.

The clamping ring 60 extends rearwardly from the jacket part 50 over a considerable piece of the cable insulation 102 in order to form an adequate mechanical support of the cable 100 and also to effect a partial sealing of the cable entry point against the ingress of moisture » _;

Three seals 18, 36 and 70 are provided. The surfaces that forming a contact area between the center conductor paths of the mating connector terminals 10, 80 are located around the front end of the pin 40 in the area C. "and are through the insulating insert 36 protected, which is in the bore 31 of the Shell part 30 is fitted tightly. An additional seal 18 is

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arranged at the rear end of the bore 14 in contact with the shoulder 1β and is designed as a disk seal which has a central opening surrounding the pin 40 and which rests on the forward-facing surface of the insert 36 and with its edge on the shoulder 16 . In operation, the engagement of the connecting clamp half 12 with the mating clamp half 80 compresses the seal 18 so that it is radially against the wall of the bore 14 and axially against the. Shoulder 16 is pressed · The pressing area Cp is protected by the insulating material of the insert 36, which surrounds the pressing area and fills the dumbbell part 30 of the connecting clamp on both sides of the pressing openings 34. The further seal 70 is disposed at the rear end of the jacket extension 50 to prevent moisture from entering the connector clamp assembly at the cable entry point. Fig. 3 shows the annular configuration of the seal 70 and its arrangement with respect to the insulation 106, the cable braid 104 and the outer jacket 102 of the cable 100. Fig. 3 is for illustration purposes only, since the seal 70 is attached to the jacket portion 50 of the connecting clamp is. The cable end is exposed from the insulation, as shown in FIG. A portion of the insulation 106 protrudes so that it can be inserted into the socket-shaped extension 37 of the insert 36 and through the king seal 70 ', and the cable braid 104 protrudes outwardly behind the seal 70 near the front end of the insulation 102 . As shown in FIG. 1 and more clearly in Fig. 4 _t the braid 104 extends forwardly beyond the seal 70 so that the gasket 70 under the mesh 104 with its inner surface against the

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Outer surface of the insulation 106 is arranged «" -

The seal 70 is made of an elastically deformable material such as 3.B. Silicon or lieopi rubber is formed, which is significantly softer than the insulating material 106, as in i'ig. 5, the cross-sectional design of the seal 70 comprises V / and sections 72 and 74 which are displaced relative to one another in the axial direction and which run radially outward from a transverse base section 76. The three sections 72, 74 »76 form an annular channel 78 which is arranged to engage an inwardly protruding rim 54 formed on the rear end of the jacket extension 50. The front end section 72 is of a lesser height than the rear end section 74 and essentially of the same height as the rim 54, so that the seal is attached to the dumbbell section 50 by the engagement of the rim 54 in the channel 78 »

The rear, wider Y / and part 74 is used for sealing. Y / hen 60 Ändrückkräfte be exerted on the clamping ring, then v / ground _ _ __ _r the direction indicated in Figure "6 by arrows forces generated, the effect of the deformation of the seal 70 and Zusammeiidrückung 77andteils 74th The main forces act, as indicated, radially around the circumference of the clamping ring 60 and are transmitted via the braid 104 to the V / and part 74 of the seal in order to drive the inner annular surface of the seal against the insulation 106. Furthermore, transversely directed forces act due to the pressure of the cable braid 104 forwards _t re _L : en the rear end of the seal 70 and the pressure of the end of the outer insulation 102, which is driven forward by the clamping ring 60. The resulting compression and deformation of the outer part 74 of the seal 70 has the effect that the seal also _c : e _r v "en the rear,. /, Ndf area of the jacket extension 50

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is pressed, as shown in Fig. 6, so the entire arrangement to seal against the ingress of moisture or corrosive media from the braid 104 or under the clamping ring 60, The clamping ring 60 is bent inwards at its rear end, to tightly encompass the insulating jacket 102 of the cable, which helps to additionally seal the entry point and also the outer insulating jacket 102 and the cable braid to the front to push the seal against the rear end face of the Press jacket extension 50 of the connecting clamp

The surfaces of the pressure jaws for pressing the connecting terminal in the area C ₂ are preferably designed so that the form of the pressure connection shown in FIG. 2 results, the thin wall of the insulation of the insert 36 surrounding the pin 40 in the pressure area Op , pierced or penetrated while the metal pin is deformed. For this purpose, the radii of the opposite pressing jaw surfaces are expediently larger than the radius of the cross section of the pin 40. The 'laughing' pressing jaws for pressing the outer clamping ring 60 around the jacket extension 50 are expediently designed so that the effective diameter of the clamping ring 60 is reduced in this area in order to clamp the braid 104 between the clamping ring 60 and the jacket extension 50 by compression. The connecting terminal is expediently pressed on by means of a tool which is able to carry out the pressing simultaneously via pressing jaw surfaces which act both in the area Cp and in the area C ₇₅ .

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Claims (1)

Dr.pMl.u.B.HA »E] lf ^Fatentanwalt 1615551 8C00 MUNICH-SOLLN I U I O O O I Franz Hale Street 21 Telephone 796213, ' AMP 1189 Munich,., The ^ O.MHZ. 1984 AMP INCORPORATED . Harrisburg, Pennsylvania · _. · TJ. "S ₀ Δ." PATENT CLAIMS '/. 1. Equiaxed .electric connection terminal for an equiaxed cable, the axis of a cable core and a conductive cable jacket ordered, which is separated from the core by insulating material, consisting of an insulating insert piece, which is in a tubular conductive. Sheath is fitted, and a central conductive pin which is fixed in an axial bore of the insert and protrudes forwardly from the insert, the forward ends of the tubular handle and the / central pin being adapted to mating parts of a corresponding connecting gill - ..- me to be put together, and wherein the rear end ~~ of the center pin has a bore for receiving the cable core and the rear end of the tubular jacket is formed with an extension that serves to receive the conductive cable jacket around this outside Extension ■ is attached by means of an outer clamping ring, dadur ch geke η η ζ calibrated that the insert piece _j (36) is formed with opposing recesses (38), the thin, uninterrupted wall parts of the insert piece (36) in the vicinity of the center pin (4-0) form that the conductive jacket (30) is formed with opposing openings (34) Qp> tf \ ^l Bayerische Vereinebank Munich 820993 ^ - 90 9 815/086 9 det, which are aligned with the recesses (38) to provide access for pressure jaws for pressing the iJtiftes (4-0) around the cable core (110) through the thin V / and parts of the insert (36) and that a resiliently deformable annular 'seal (70) at the end of the rear extension (50) of the tubular Hanteis (30) attached and arranged around its circumference so that it is attached to a at the back white ends. ! Area of the extension (50) and on the insulation (106) of the cable (100) inside the cable jacket (104) is applied. 2, connecting terminal according to claim 1, characterized in that that the rear extension (50) of the tubular lantern (30) at its end with an inward protruding rim (54) is formed and that the seal (70) has two different wall sections (72 and 74) which extend radially, are apart and radially through one inner G-round wall (76) are connected, .v / o by a Inner section (78) is formed, which the rim (54) to . Attachment of the seal (70) to the extension (50) accommodates » ο connecting terminal according to claim 2, characterized in that that the width of the channel (78) is substantially equal to the thickness of the "rim (54), and that the front . '. and part (72) of less height than the rear ".rand part- (74) is. 4 »Connection clamp according to one of the. Yes claims 1 to 5, thereby g e k e η η ζ e i c ti η e t that eggs are tubular conductive sheath (30) of. the insert (36) from forward runs so that the forward part (12) has a 909815/086 9 ^BAD ORIGINAL "" * ~ ¹¹ " . wider diameter, so that an annular shoulder (1.6) near the front end of the insert (56) is formed, and that an elastically deformable insulating sealing ring (18) one the front part of the Hittelstiftes (40) and on the ring-shaped shoulder (16) as well. rests against the front end of the insert piece (36). 5. Connection terminal according to one of claims 1 * "to 4» d a d u rc h g e k e η η ζ e-i c h η e t that the insert (36) with a rear tubular / extension (57) is formed, which is located within the rear extension (50) of the conductive: jacket (30), and an internal bore (39K has a diameter greater than that of the Hittelstiftleiter (40) " 6. Connection of a Verbiiiduiitisklemiiie according to one of the claims 1 to 5 with an equiaxed cable, the middle cable core and a conductive cable jacket extending from the Soul is separated by insulation, .d a d u r c h g e * -_ ". k e η η ζ e i c h η e t that the front end of the cable core (110) is pressed in the middle pin (40), that the front end of the conductive cable jacket (104) outside around the rear Extension "(50) of the LIanteis (50) of the connecting clamp and runs within a Klernriiringes (6Q), which is the extension (50) surrounds that the insulation (106) of the cable (100), which separates the deele (110) from the conductive sheath (104), has an outer diameter that is publicly equal to that in the ave inner diameter of the sealing ring (70), which on the rear end of the extension (50) of the Klemr ^ enmantels (30) is attached, and through the clearing (70) through . "■ runs, raid that the cable jacket (104) against the seal - 909815/0869 (70) is pressed that he. this against the rear surface (54) of the extension (50) and presses against the outer surface of the cable insulation (106) » 7 · Connection according to claim 6, wherein the cable has an outer Has insulating jacket, characterized in that the clamping ring (60) which surrounds the extension (50) extends from "the extension (50) to the rear and
encloses the outer insulating jacket (102) and is bent inwardly at its rear end in order to firmly encompass the insulation (102). 909S 1 5/0869