Patent EA-003808-B1 (EA)
Title: Plug-in connector with a bushing
Inventor: BARTHOLOMAE MARIO
IPC: H01R13/426
Filed: 2001-03-17
Abstract: 1. A plug-in connector (1) with bushing (2), insulation body (3) placed in working position in bushing (2) and oblong pin-type contacts (4), fixed in working position in containing them perforations or bores (6) of insulation body by means of lugs, entering in groove-type recesses (7) made in them across the lengthwise direction of contacts (4), wherein perforations or bores (6) with oblong contacts (4) are placed in imaginary cylinder, passing concentrically to the middle of bushing (2), or insulation body, and, thereby, on the same distance from inner side of bushing (2)or surface (3a) of insulation body (3), wherein the additional contact (41) is placed inside of imaginary cylinder of perforation or bore (6) in parallel with other contacts, characterized in that the insulation body (3) has at least, one enveloping it outer side (3a) and open outwards groove (8), crossing perforations or bores (6) for contacts (4) on the area of their radial extension on their side, inverted to outer side (3a) of insulation body (3) at the altitude, on which recesses (7) of contacts (4) are placed in working position, it is provided by fixation and retainer ring (9)consisting of insulation material, which passes, at least, along the whole periphery of insulation body (3), fits into the groove (8) of insulation body (3) and in working position simultaneously as a lug engages in recesses (7) of contacts (4), wherein retainer ring (9) has at lest, one retaining tongue (10) protruding inwards, which enters in working position in passing from groove (8) to inside channel or opening (11) and comes forward up to recesses (7) situated inside of imaginary cylinder of additional contacts (41) and perforation or bore (6) containing it. 2. A plug-in connector according to claim 1 characterized in that the retainer ring (9) passes only by circle part, and two free ends (9a) are made with possibility of elastically unclasping, at least, so that the distance between them in that deformed condition corresponds to diameter of insulation body (3) in the zone of the groove bottom. 3. A plug-in connector according to claim 1 or 2 characterized in that groove-type recesses (7), enveloping the oblong contacts (4, 41) or contact pins, in particular, around their periphery, are each limited by pad (12) radially protruding in relation to contacting zone and the like, and said pad has inverted from recess (7) side slant or cone (13), which, while the entering of contact (4, 41) in its bore (6), sets against the retainer ring (9) and deflects it radially outwards till the recesses (7) of contact (4, 41) coincide with groove (8) of insulation body, so that the retainer ring (9) falls automatically in recess (7) of contact (4, 41). 4. A plug-in connector according to any one of claims 1-3 characterized in that one of the contacts placed on the imaginary cylinder is made as ground contact (411) and free of retainer ring (9), wherein the said ground contact (411) can be fixed in axial direction with conductive spring or same element, which fits into the groove (8) of insulation body (3), in the working position fits into the recess (7) on the ground contact (411) and taking with fixation ground contact (411), in particular, by elbow(15). 5. A plug-in connector according to claim 4 characterized in that the free ends (9a) of retainer ring (9) are placed on both sides of ground contact (411) in working position on distance from it. 6. A plug-in connector according to claim 4 or 5 characterized in that the retaining spring (14) for ground contact (411) consists of metal or current conducting plastic and has on outward side, in particular, bulge or lug (16), which comes forward the insulation body surface (3), at least, to one amount of clearance of insulation body (3) in relation to bushing (2) and/or clearance of retaining spring (14) in groove (8) of insulation body (3). 7. A plug-in connector according to any of claims 1-6 characterized in that the retainer ring (9) section approximately filling the groove (8) section in working position, or at least, radial extension or width of the retainer ring (9) corresponds to radial extension or width of groove (8), and by accommodating the insulation body (3) bushing (2) fixes the working position of retainer ring (9). 8. A plug-in connector according to any of claims 1-7, characterized in that retaining tongue (10) of retainer ring protruding inwards is made on its face side concave and so at least, corresponds approximately to the form of periphery of retained contact (41) on the bottom of its recess (7). 9. A plug-in connector according to preceding claims, characterized in that retainer ring (9) covers more than 180 degree insulation body (3) inwards of groove (8), enveloping it preferably along all the periphery. 10. A plug-in connector according to any of claims 1-9, characterized in that the free ends (9a) of retainer ring (9) are sloped to each other with the possibility of forming of inlet funnel, facilitating the putting on or entering of groove (8) of insulation body (3). 11. A plug-in connector according to preceding claims, characterized in that the bushing (2) containing the insulation body (3) consists of metal and form plug-in connector's body, and if required carries thread (17) on its outer side. 12. A plug-in connector according to any of claims 1-11, characterized in that the bushing (2) contains on its inner side positioning lugs or deepenings, and insulation body (3) - corresponding deformations (18), which at the axial insertion of insulation body (3) fixes the previously selected turned position. 13. A plug-in connector according to any of claims 1-12, characterized in that the bushing (2) is provided inside by the axially working area with enhanced diameter, where, regarding in insertion direction, enters at least one fixing tongue (19) protruding on the insulation body (3) in radial direction, radially pliable or indenter, made with possibility of elastic-spring turning. 14. A plug-in connector according to claim 12, characterized in that elastically pliable or deforming radially fixing tongue (19) is made with possibility of axial turning, in parallel to middle axe of insulation body (3) or plug-in connector (1), and passes in direction of periphery of insulation body (3). 15. A plug-in connector according to claim 13 or 14, characterized in that elastically deformable fixing tongue (19) contacts by side surface with groove (8) and limits it, retainer ring (9) or/and retainer spring (14) in working position blocking elastically pliable fixing tongue (19) from axial deformation. 16. A plug-in connector according to claim 13 or 15, characterized in that fixing tongue (19) has on its outer side a fixing lug (23) with radial extension which equal or less of deformation try of fixing tongue (19) radially. 17. A plug-in connector according to one of claims 1-16, characterized in that the width of retainer ring (9) is adjusted with the radial distance of directed outward surface of contact (4) or contact pin from outer side (3a) of insulation body (3), wherein the width of retainer ring (9) in the zone of soft contact pins or contact plugs more that in the zone of thicker contact pins or contact plugs. 18. A plug-in connector according to one of claims 1-17, characterized in that retaining tongue (10) is situated, substantially, in the middle between free ends (9a) of retainer ring (9) and, furthermore, in the same plane with the remaining ring contour, so that is substantially, molded in neutral zone while unbending of retainer ring (9).