INSULATING BODY FOR AN ELECTRICAL PLUG CONNECTION UNIT

Abstract

The invention relates to an insulation body (1) for an electrical connector unit (10, 10) with at least two insertion channels (11A, 11B, 11C, . . . ) into each of which a contact pin (5) or a contact bush (7) can be inserted, which preferably are aligned parallel to a main axis (x) of the insulating body (1) into which a securing channel (12A; 12B; 12C; . . . ) empties, preferably perpendicular to it, in which a set screw (6) is supported so as to turn, by means of which the related contact pin (5) or the related contact bush (7) can be mechanically impinged on, and to which an insulating collar (13A; 13B; 13C; . . . ) is assigned, which is arranged on the outer side of the insulating body (1), at least approximately coaxial to the related securing channel (11A; 11B; 11C, . . . . According to the invention, preferably each of the insulating collars (13A; 13B; 13C; . . . ) has at least one collar opening (131A, 131B, 131C, . . . ) that is limited on both sides by collar ends (132).

Claims

1. An insulating body for an electrical connector unit comprising a plurality of insertion channels; the insertion channels are designed each for receiving a contact pin or a contact bush, the insertion channels are laterally adjoined each by a securing channel, in which securing channel a set screw is held that can be screwed with a front end into the related insertion channel to mechanically fix the related contact pin or the related contact bush, and the insertion channels at one end are adjoined each by an insulating collar, which is arranged on the outer side of the insulating body aligned at least approximately coaxial to the related insertion channels, wherein at least one or all of the insulating collars have at least one collar opening that is limited on both sides by collar ends.

2. The insulating body of claim 1, wherein the insulating collar is configured as a hollow cylinder element with the collar ends forming edges aligned in parallel to one another.

3. The insulating body of claim 1, wherein on the outer side of the insulating body an insulating wall is provided for electrical insulation of at least one of the set screws.

4. The insulating body of claim 1, wherein each collar opening is facing the adjoining insulation collar or the insulating wall, or that the insulation collars are aligned in a row and the collar openings have a common opening axis.

5. The insulating body of claim 1, wherein the insulating collars have a wall thickness of 0.4 mm to 1.5 mm, preferably of 0.75 mm to 1 mm.

6. The insulating body of claim 1, wherein on the inner side of each insulation collar or on the inner side of each securing channel one or more blocking ribs are provided for mechanically blocking the received set screw.

7. The insulating body of claim 1, wherein the collar openings have an opening width between 1 mm and 8 mm, preferably between 1.5 mm and 3 mm.

8. The insulating body of claim 1, wherein the collar openings have an opening angle in a range between 60? and 120?, preferably approximately 90?.

9. The insulating body of claim 1, wherein the surface of the insulating body has dirt-deflecting or self-cleaning properties.

10. The insulating body of claim 1, wherein the insulating distance between each set screw and the adjoining insulation collar or the insulating wall is at least 1 mm.

11. The insulating body of claim 1, wherein on at least two opposite sides of the insulating body, locking projections and holding means guides are arranged for mechanically securing holding means, with which the insulating body is fixable within a housing of a connector unit.

12. The insulating body of claim 1, wherein the insulating body is designed for rated voltages of at least 400 V.

13. The insulating body of claim 1, wherein the insulating body is designed such that particles deposited by contamination on the insulating body do not cause leakage segments that are shorter than the shortest leakage segment allowed by the applicable standard.

14. A connector unit with an insulating body according to claim 1, which is equipped with contact pins or contact bushes.

15. A socket-and-plug connector unit with a connector unit according to claim 14, which is equipped with contact pins, and which is equipped with bushes.

16. A method for manufacturing an insulating body of claim 1, wherein the insulating body is manufactured by a master-pattern method, especially by casting, 3D-casting, die-casting or injection-molding.

17. The method according to claim 16 including at least one materials-removal procedural step, for configuring the collar openings, on the insulating collars.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The invention, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of the illustrative embodiments when read in conjunction with the accompanying drawings, wherein:

[0028] FIG. 1a shows an inventive insulating body 1 with securing means 2, 2;

[0029] FIG. 1b shows a detail view of insulating body 1 of FIG. 1a;

[0030] FIG. 2 shows the insulating body 1 of FIG. 1a in another view with securing means 2 depicted in exploded fashion;

[0031] FIG. 3 shows a plug-and-socket connector unit 10 having an insulating body 1 from FIG. 1a equipped with contact pins 5 with a circular view for emphasis of the interior of insulating body 1;

[0032] FIG. 4 shows plug-and-socket connection unit 10 of FIG. 1a in a further view;

[0033] FIG. 5a shows insulating body 1 of FIG. 1a in a side view;

[0034] FIG. 5b shows a detail view of insulating body 1 from FIG. 5a;

[0035] FIG. 6 shows a plug-and-socket connector 100 with two plug-and-socket connector units 10, 10 which have insulating bodies 1, 1 configured to be complementary to one another;

[0036] FIG. 7 shows plug-and-socket connector 100 of FIG. 6 in a partially cut-away view with contact pins 5 and contact bushes 7 shown in exploded fashion.

DETAILED DESCRIPTION

[0037] FIG. 1a shows an inventive insulating body 1 with holding means 2, 2 in a perspective view. Insulating body 1 has multiple insertion channels 11A, 11B, 11C, . . . , running through insulating body 1, which admit contact pins or contact bushes not shown. To each insertion channel 11A, 11B, 11C, . . . , laterally a securing channel 12A, 12B, 12C, . . . is assigned, into which a set screw 6 can be inserted. On securing channels 12A, 12B, 12C, . . . insulating collars 13A, 13B, 13C, . . . are arranged, which provide lateral electrical insulation to set screw 6 arranged in the pertinent securing channel 12A, 12B, 12C, . . . . At two ends of insulating body 1, holding means 2, 2 are shown, by which insulating body 1 with coupling means 4, 4 is able to be secured in a housing of a plug-and-socket connector. Holding means 2, 2 comprise locking elements 21 and at least one set screw 3 for securing on insulating body 1. Set screw 3 can simultaneously assume the function of the protective line contact. In this version, the holding means 2, 2 are configured as protective line plates.

[0038] FIG. 1b shows a close-up view of insulating body 1 from FIG. 1a. On securing channel 12E, an insulating collar 13E is shaped concentrically, which is configured as a hollow cylinder, so that insulating collar 13E has two collar ends 132, which border a collar opening 131E. Collar opening 131E, which for example is a result of cutting through insulating collar 13E, preferably has a rectangular cross section. Into securing channel 12E, a set screw 6 is inserted, which can be turned against the contact element, the contact pin, or the contact bush.

[0039] FIG. 2 shows insulating body 1 from FIG. 1a in another view with holding means 2 depicted in exploded fashion. On insulating body 1, locking projections 14A, 14B and holding means guides 15A, 15B are shaped, into which corresponding elements of holding means 2 can engage.

[0040] FIG. 3 shows insulating body 1 from FIG. 1a with a circular enlargement emphasizing the interior of insulating body 1. In insertion channels 11A, 11B, 11C, contact pins 5 are arranged, into which an electric line can be secured by set screw 6.

[0041] FIG. 4 shows insulating body 1 from FIG. 1a in another view. The contact pins 5 project out from insulating body 1, so that they engage into a complementary plug-and-socket connection half and can create an electrical contact. Coding ribs 17 are shaped on the insulating body, which can engage into corresponding coding elements on an opposite piece. The coding elements prevent two insulating bodies 1 from being joined in a wrong position.

[0042] FIG. 5a is a side view of insulating body 1 from FIG. 1a. Securing channels 12A, 12B, 12C, . . . , are shown arranged in a row in the preferred embodiment shown. Insulating collars 13A, 13B, 13C, . . . , are arranged concentrically to securing channels 12A, 12B, 13C, . . . . Insulating collars 13A, 13B, 13C have collar openings 131A, 131B, 131C, . . . , each of which faces in the direction of adjoining insulating collar 13A, 13B, 13C.

[0043] FIG. 5b is a close-up view of insulating body 1 from FIG. 5a. Insulating collar 13E has a collar opening 131E, which points in the direction of adjoining insulating collar 13F. The insulation distance d designates the distance between electrically conducting set screw 6 in securing channel 12E and adjoining insulating collar 13F, which insulates the adjoining set screw. Collar opening 131F in insulating collar 13F has an opening width w. Adjoining to insulation collar 13F, an insulating wall 16 is arranged, through which the lateral electrical insulation vis-?-vis holding means 2, 2 and the elements attached thereon is assured. On the inner side of securing channel 12F, two opposing blockading ribs 121F, 121F are shaped. Blockading ribs 121F, 121F prevent set screws 6 from coming loose due to vibrations or other motions of insulating body 1.

[0044] FIG. 6 shows a plug-and-socket connector 100 with plug-and-socket connector units 10, 10, which have insulating bodies 1, 1 complementary to one another. Plug-and-socket connector units 10, 10 can include a housing not shown here. The second insulating body 1 has coding grooves 18, which are formed out complementary to the coding elements on insulating body 1.

[0045] FIG. 7 shows plug-and-socket connector 100 from FIG. 6 in a partially cut-away view, with contact pins 5 and contact bushes 7 depicted in exploded views. In the lower insulating body 1, contact pins 5 are arranged in insertion channels 11A. In the upper insulating body 1, contact bushes 7 are arranged complementary thereto in insertion channels 11E. Contact pins 5 and contact bushes 7 are able to be mechanically impinged on via set screws 6. Set screws 6 are guided to securing channels 12A, 12E, which are surrounded by an insulating collar 13A, 13E. It is shown that securing channels 12A; 12E are aligned perpendicular to insertion channels 11A; 11E and surrounded by hollow cylindrical insulating collars 13A; 13E. Insulating collars 13A; 13E are shaped as a single piece on insulating body 1, 1 and directed outward, so that they project outward over insulating body 1, 1. Insertion channels 11 in this preferred embodiment are arranged in two rows, with every two securing channels 12 lying coaxially opposite.

LIST OF REFERENCE SYMBOLS

[0046] 1, 1 insulating body [0047] 11A, 11B, 11C, . . . insertion channel [0048] 12A, 12B, 12C, . . . securing channel [0049] 121F, 121F blocking rib [0050] 13A, 13B, 13C, . . . insulating collar [0051] 131A, 131B, 131C, . . . collar openings [0052] 132 collar ends [0053] 14A, 14B locking projection [0054] 15A, 15B holding means guide [0055] 16 insulating wall [0056] 17 coding rib [0057] 18 coding groove [0058] 2, 2 holding means [0059] 21 locking element [0060] 3 set screw [0061] 4, 4 coupling means [0062] 5 contact pin [0063] 6 clamping screw [0064] 7 contact bush [0065] d insulation distance [0066] w opening width