Plug device including housing socket

Abstract

A plug device including housing socket, wherein: the housing socket has a - fixing region, - an outlet region, - a toothed region, and - a conical region; the housing socket has an internal screw thread; the maximum outer diameter of the housing socket increases monotonically, in particular strictly monotonically, in the axial direction, in particular from the fixing region, via the outlet region, the toothed region and the conical region.

Description

[0001] Plug device with housing socket

[0002] Description:

[0003] The invention relates to a plug device with a housing socket.

[0004] Plug devices for electrical connectors are well known.

[0005] From DE 102013 113 878 A1, a connector with single wire sealing is known as the next state of the art.

[0006] A plug housing for a connector is known from US 2014 / 0 154 914 A1.

[0007] A sealing housing for a connector is known from US 2011 / 0 075 971 A1.

[0008] The invention is therefore based on the object of developing a plug device with a housing socket, whereby a long service life is to be achieved.

[0009] According to the invention, the object is achieved in the plug device according to the features specified in claim 1.

[0010] Important features of the invention in the plug device are that the plug device is designed with a housing socket, wherein the housing socket has a fixing area, a run-out area, a toothed area and a conical area, wherein the housing socket has an internal screw thread, wherein, in particular in a partial area of ​​the entire axial length of the axial length of the housing socket, the maximum external diameter of the housing socket increases monotonically, in particular strictly monotonically, in the axial direction, in particular from the fixing area via the run-out area, the toothed area and the conical area, in particular wherein the axial direction is aligned parallel to the screw axis of the internal screw thread.

[0011] The advantage is that fluids cannot accumulate, thus preventing corrosion. This increases service life. Since a plug insert can be screwed into the internal screw thread, the penetration of fluids into the interior of the housing socket is prevented.

[0012] Preferably, the sub-area comprises the fixing area, the run-out area, the toothing area and the conical area.

[0013] In an advantageous embodiment, the housing bushing is formed in one piece, particularly in one piece. This is advantageous because it allows for simple manufacturing and ensures tightness against the ingress of liquids.

[0014] In an advantageous embodiment, the fixing area borders the outlet area in the axial direction, with the outlet area bordering the toothed area in the axial direction, and the toothed area bordering the conical area in the axial direction. The advantage here is that there are no axial gaps between the areas, thus ensuring reliable fluid drainage.

[0015] In an advantageous embodiment, a chamfer rounding area borders the conical area at the axial end of the conical area facing away from the gearing area. This is advantageous in that sharp edges are avoided, thus preventing damage that could lead to corrosion. In an advantageous embodiment, the maximum outer diameter of the chamfer rounding area decreases strictly monotonically with increasing axial distance from the conical area. This is advantageous in that fluids can drain away safely.

[0016] In an advantageous embodiment, the radial wall thickness of the conical area is greater than the radial wall thickness of the toothed area. This provides the advantage of increased stability, thus ensuring a secure, stable, and correspondingly tight connection with the plug insert. In particular, the plug insert can be connected to the housing socket in a tight and stable manner.

[0017] In an advantageous embodiment, the area covered by the internal screw thread in the axial direction overlaps with the area covered by the toothed area in the axial direction and with the area covered by the conical area in the axial direction. The advantage here is that while the cutting of the internal screw thread weakens the housing wall of the housing bushing, the thickening in the conical area results in increased rigidity.

[0018] In an advantageous embodiment, a toothing is formed on the outer circumference of the housing bushing, in particular in the toothing area, with the teeth of the toothing extending in the axial direction. This is advantageous in that an increased torque can be applied during holding.

[0019] In an advantageous design, the housing bushing is made of metal. This allows for a robust construction, thus ensuring a long service life.

[0020] In an advantageous embodiment, the radial depth of the tooth gaps in the toothing in the run-out area decreases monotonically, in particular strictly monotonically, with increasing distance from the toothing area. This is advantageous because the accumulation of fluids is prevented.

[0021] In an advantageous embodiment, the fixing region has a greater extent in a first direction than in a second direction perpendicular to the first direction, wherein the first direction and the second direction are each oriented perpendicular to the axial direction. This is advantageous in that increased rigidity can be achieved, particularly at the end of the housing bushing opposite the conical region.

[0022] In an advantageous embodiment, the fixing area has a continuous recess through which a cable protrudes, onto which a cable grommet is attached, in particular with the cable grommet protruding into the continuous recess. Advantageously, the cable protrudes through the fixing area and can be connected to the fixing area in a force-locking manner. In particular, the cable can be crimped and / or deformed with a pin and thus connected to the housing socket in a force-locking manner.

[0023] In an advantageous embodiment, the plug device has a plug insert which has a first screw thread and a second screw thread spaced therefrom in the axial direction, wherein the first screw thread is screwed into the internal screw thread, wherein wires of the cable are materially connected, in particular soldered, to connection pins projecting axially on the plug insert, in particular wherein the screw axis of the first screw thread is aligned coaxially to the screw axis of the second screw thread and / or is aligned parallel to the axial direction.

[0024] In an advantageous embodiment, the plug insert has an external hexagon area arranged axially between the first and second screw threads. This is advantageous because a high torque can be applied to connect the plug insert to the housing socket, thus ensuring a secure connection.

[0025] In an advantageous embodiment, the radially outer circumference of the fixing region adjacent to the end face of the run-out region is shaped like a cuboid, the longest edges of which extend parallel to the first direction and at whose end region, viewed in the first direction, a first rounded region adjoins and at whose end region, viewed opposite to the first direction, a second rounded region adjoins, wherein the first rounded region is mirror-symmetrical to the second rounded region, in particular wherein each of the rounded regions has a respective cylindrical jacket surface area on its outer surface. The advantage here is that the housing bushing is stiffened by the non-circular design of the fixing region and thus a higher overall stiffness can be achieved. Further advantages arise from the dependent claims. The invention is not limited to the combination of features of the claims.For the person skilled in the art, further reasonable combination possibilities of claims and / or individual claim features and / or features of the description and / or the figures will arise, in particular from the task and / or the problem arising from a comparison with the prior art.

[0026] The invention will now be explained in more detail using schematic illustrations:

[0027] Figure 1 shows an exploded view of the plug device according to the invention, which has a housing socket 5.

[0028] In Figure 2, the housing socket 5 is shown in an oblique view.

[0029] Figure 3 shows the housing socket 5 in side view.

[0030] Figure 4 shows a sectional view of the housing socket 5.

[0031] As shown in the figures, the plug device has a housing socket 5 which has an internal screw thread 40 into which a first screw thread 3, in particular an external thread, of a plug insert 11 can be screwed.

[0032] The plug insert 11 has axially projecting terminal pins 4 at its first axial end region, to which the wires of a cable are firmly connected. The cable 12 extends through a recess in the housing socket 5 to the terminal pins 4.

[0033] The axial direction is parallel to the screw axis of the first screw thread 3.

[0034] A cable grommet 7 is fitted onto the cable 12, which protrudes into a fixing area 6 of the housing socket 5 and is frictionally connected by means of a retaining pin 13, in particular a threaded pin. Thus, the cable 12 is held frictionally in a fixing area 6 of the housing socket 5.

[0035] In the axial direction, an outlet area 8 borders the fixing area 6. A toothed area 9 borders the axial end of the outlet area 8 facing away from the fixing area 6. A conical area 10 borders the axial end of the toothed area 9 facing away from the outlet area 8, and a chamfered area is arranged at the axial end of the conical area 10 facing away from the toothed area 9. The housing bushing 5 has an outer diameter that increases monotonically, in particular strictly monotonically, in the axial direction from the fixing area 6 through the outlet area 8 and the toothed area 9 as well as the conical area 10. This ensures optimal drainage of fluids in any installation direction.

[0036] The teeth of the toothing machined into the toothing area 9 extend in the axial direction, wherein the teeth and / or the tooth gaps arranged between the teeth in the circumferential direction run out in the run-out area 8, in particular thus being cut less and less deeply into the housing bushing 5 with increasing distance from the toothing area 9.

[0037] The fixing area 6 is non-circular. For this purpose, the fixing area 6 has a greater extent in a first direction than in a second direction perpendicular to the first direction, wherein the first direction and the second direction are aligned perpendicular to the axial direction.

[0038] The outer circumference of the fixing region 6 adjacent to the end face of the outlet region 8 corresponds to a cuboid whose longest edges extend parallel to the first direction and whose two end regions, viewed in the first direction, each have a rounded region. In particular, each of the rounded regions has a cylindrical surface area on its outer surface.

[0039] The plug insert 11 has not only the first screw thread 3, but also a second screw thread 3 spaced apart in the axial direction from the first screw thread 3, to which a mating connector can be screw-connected.

[0040] In addition, a hexagonal area 1 is arranged axially between the first screw thread 3 and the second screw thread 2, so that a torque can be derived by means of a tool, in particular an open-end wrench.

[0041] As shown in Figure 4, the area covered in the axial direction by the internal screw thread 40 of the housing bushing 5 overlaps both the area covered in the axial direction by the toothed area 9 and the area covered in the axial direction by the conical area 10. The radial wall thickness of the conical area 10 is greater than the radial wall thickness of the toothed area 9.

[0042] The housing socket 5 is made of a metal, in particular steel.

[0043] In further embodiments according to the invention, the housing bushing 5 is made of plastic.

[0044] List of reference symbols

[0045] I Hexagon area 2 second screw thread

[0046] 3 first screw thread

[0047] 4 connection pins

[0048] 5 Housing socket

[0049] 6 Fixing area 7 Cable grommet

[0050] 8 Run-off area

[0051] 9 Gearing area

[0052] 10 conical area

[0053] II Plug insert 12 cables

[0054] 13 Retaining pin

[0055] 30 pens

[0056] 40 internal screw threads

Claims

Patent claims:

1. Plug device with housing socket, characterized in that the housing socket has a fixing area, a run-out area, a toothed area and a conical area, wherein the housing socket has an internal screw thread, wherein, in particular in a partial area of ​​the entire axial length of the axial length of the housing socket, the maximum external diameter of the housing socket increases monotonically, in particular strictly monotonically, in the axial direction, in particular from the fixing area via the run-out area, the toothed area and the conical area, in particular wherein the axial direction is aligned parallel to the screw axis of the internal screw thread.

2. Plug device according to claim 1, characterized in that the housing socket is formed in one piece, in particular in one part.

3. Plug device according to one of the preceding claims, characterized in that the fixing region adjoins the outlet region in the axial direction, wherein the outlet region adjoins the toothing region in the axial direction, wherein the toothing region adjoins the conical region in the axial direction.

4. Plug device according to one of the preceding claims, characterized in that a chamfer rounding region adjoins the axial end of the conical region facing away from the toothing region in the axial direction.

5. Plug device according to one of the preceding claims, characterized in that the maximum outer diameter of the chamfer rounding region decreases strictly monotonically with increasing axial distance from the conical region.

6. Plug device according to one of the preceding claims, characterized in that the radial wall thickness of the conical region is greater than the radial wall thickness of the toothed region.

7. Plug device according to one of the preceding claims, characterized in that the area covered by the internal screw thread in the axial direction overlaps with the area covered by the toothed area in the axial direction and with the area covered by the conical area in the axial direction.

8. Plug device according to one of the preceding claims, characterized in that a toothing is formed on the outer circumference of the housing socket, in particular of the toothing region, in particular wherein the teeth of the toothing extend in the axial direction.

9. Plug device according to one of the preceding claims, characterized in that the housing socket is made of metal.

10. Plug device according to one of the preceding claims, characterized in that in the run-out region the radial depth of the tooth gaps of the toothing decreases monotonically, in particular strictly monotonically, with increasing distance from the toothing region.

11. Plug device according to one of the preceding claims, characterized in that the fixing region has a greater extent in a first direction than in a second direction perpendicular to the first direction, wherein the first direction and the second direction are each aligned perpendicular to the axial direction.

12. Plug device according to one of the preceding claims, characterized in that the fixing area has a continuous recess through which a cable projects, onto which a cable grommet is plugged, in particular wherein the cable grommet projects into the continuous recess.

13. Plug device according to one of the preceding claims, characterized in that the plug device has a plug insert which has a first screw thread and a second screw thread spaced therefrom in the axial direction, wherein the first screw thread is screwed into the internal screw thread, wherein wires of the cable are integrally connected, in particular soldered, to connection pins projecting axially on the plug insert. In particular, wherein the screw axis of the first screw thread is aligned coaxially with the screw axis of the second screw thread and / or parallel to the axial direction.

14. Plug device according to one of the preceding claims, characterized in that the plug insert has an external hexagon area which is arranged axially between the first and the second screw thread.

15. Plug device according to one of the preceding claims, characterized in that the radially outer circumference of the fixing region adjacent to the end face of the outlet region is of the same shape as a cuboid, the longest edges of which extend parallel to the first direction and on the end region of which, viewed in the first direction, a first rounded region adjoins and on the end region of which, viewed opposite to the first direction, a second rounded region adjoins, wherein the first rounded region is formed mirror-symmetrically to the second rounded region, in particular wherein each of the rounded regions has a respective cylinder jacket surface region on its outer surface.

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