Metal-cast connector component

Abstract

The invention relates to a threaded sleeve (1) for a circular connector housing, which has a centrally extending internal thread (2), a flange (3) and an annular connection region (5) adjoining said flange, wherein the internal thread (2) and / or the flange (3) and / or the annular connection region (5) have at least one step-like production-induced protrusion (14, 14').

Description

[0001] Applicant: HARTING Electric Stiftung & Co. KG Title: Metal-cast connector component

[0002] Description

[0003] The invention relates to a screw sleeve for a circular connector according to the preamble of independent claim 1. The invention further relates to a circular connector housing comprising such a screw sleeve. The invention further relates to a method for manufacturing a screw sleeve for a circular connector housing according to the preamble of independent claim 4. The invention also relates to a circular connector according to the preamble of claim 9.

[0004] Circular connectors are typically used in device connection technology. They supply devices with data and control signals, as well as the necessary power.

[0005] State of the art

[0006] German patent DE 10 2011 100208 A1 discloses a circular connector whose housing consists of three parts screwed together. For shielding purposes, the housing parts are often made of a metallic material. For precision reasons, the components to be screwed together are manufactured using machining processes. Such processes are complex, resulting in high-priced components.

[0007] The German Patent and Trademark Office has searched the following prior art in the priority application for the present application: US 2011 / 0 003 507 A1.

[0008] Task

[0009] The object of the invention is to propose a circular connector housing with the desired properties, which can be manufactured cost-effectively. This object is achieved by the subject matter of the independent claims.

[0010] The screw sleeve according to the invention is intended for a circular connector housing or it is a component of the circular connector housing.

[0011] The screw sleeve has a centrally located internal thread. This allows a connector with the screw sleeve to be reversibly connected to a mating connector or a device socket.

[0012] The screw sleeve has a flange on which a flange-like area of ​​an insulating body or contact carrier is supported.

[0013] The screw sleeve has a ring connection area adjoining the flange, which is intended for connection to another connector housing part.

[0014] According to the invention, the internal thread and / or the flange and / or the ring connection area have at least a burr-like protrusion resulting from the manufacturing process. These are unintentional protrusions or burrs that, however, do not present any functional disadvantages. Therefore, no further post-processing is necessary during the manufacturing process of the screw sleeve. This allows the screw sleeve to be manufactured particularly cost-effectively.

[0015] The screw sleeve is a component of a circular connector housing according to the invention. The circular connector housing consists of a screw sleeve as described above, a cylindrical central section, and an end section that tapers in steps or conically. Preferably, the screw sleeve has an internal, circumferential groove and is fastened to the central section of the circular connector housing by means of a snap ring.

[0016] The method according to the invention is provided for the production of a screw sleeve for a circular connector or for a circular connector housing. The screw sleeve is produced by a metal casting process, preferably a metal die casting process. Such processes are also referred to as primary forming manufacturing processes.

[0017] A metal casting mold is used for the metal casting process. The interior of the metal casting mold essentially replicates the outer geometry of the screw sleeve. Preferably, a first indentation core is inserted into the metal casting mold, which at least replicates or creates the internal thread of the screw sleeve.

[0018] Preferably, a second indentation core is inserted into the metal casting mold, which forms or creates at least one circumferential groove on the inner surface of the ring connection area. This allows the screw sleeve to be connected to other connector housing components.

[0019] Preferably, the two insertion cores are inserted into the metal casting mold simultaneously. This allows the process to be carried out more quickly.

[0020] The screw sleeve according to the invention is produced in a single operation or metal casting process. In this operation, an internal thread and a groove running along the inside of the ring connection area are produced simultaneously.

[0021] Preferably, the process is carried out completely without chips. This means that the screw sleeve, after being removed from the metal casting mold, is not further processed. "Not further processed" refers to functional operations such as milling. It does not include further processing such as coating the component.

[0022] The functional details, such as the internal thread, are adequately formed. Production-related burrs or bumps are present but will not be removed. These are purely cosmetic defects that do not affect the functionality of the final product.

[0023] A screw sleeve according to the invention is manufactured according to the method described above.

[0024] A circular connector according to the invention has a screw sleeve or a circular connector housing according to the invention.

[0025] Advantageous embodiments of the invention are specified in the dependent claims and the following description.

[0026] Example of implementation

[0027] An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show:

[0028] Fig. 1 shows a perspective view of a screw sleeve according to the invention,

[0029] Fig. 2 shows a top view of an inside of the screw sleeve according to the invention and

[0030] Fig. 3 shows an exploded view of a connector having a screw sleeve according to the invention.

[0031] The figures contain some simplified, schematic representations.

[0032] In some cases, identical reference symbols are used for elements that are the same but may not be identical. Different views of the same elements may be scaled differently. Directional terms such as "left," "right," "up," and "down" are to be understood in relation to the respective figure and may vary in the individual representations compared to the depicted object.

[0033] Figure 1 shows a perspective view of a screw sleeve 1 according to the invention. The viewing angle is directed towards the interior, i.e. the part of the screw sleeve 1 that is not visible when installed.

[0034] The screw sleeve 1 is essentially hollow and cylindrical in shape. It has a centrally located internal thread 2. The internal thread 2 is intended for connection or fixation with a suitable mating connector or a device socket.

[0035] The screw sleeve 1 has an internal flange 3, on which a contact carrier 4 of a connector 10 (see Fig. 3) is supported on the plug-in side or in the plug-in direction SR.

[0036] A ring connection section 5 adjoins the flange 3 in the connection direction AR. A groove 6 runs along the ring connection section 5 inside the screw sleeve 1. The screw sleeve 1 can be connected to a cylindrical central section 8 by means of a snap ring 7 arranged in the groove 6. The central section 8 is connected to an end section 9, which tapers slightly conically at the connection end.

[0037] The screw sleeve 1 exhibits production-related or manufacturing-related ridge-like protrusions 14, 14'. These protrusions are due to so-called sink marks in a metal casting mold, as described in more detail below. From a design perspective, the ridge-like protrusions 14, 14' are undesirable, but do not impede the proper function of the component.

[0038] The screw sleeve 1, the middle section part 8 and the end section part 9 together form the connector housing of the connector 10. The connector 10 has a cable carrier 11 on the connection side, in which a seal 12 surrounding the cable sheath is arranged.

[0039] The connected cable (not shown) runs inside or is enclosed by the cable carrier. A connection-side seal and strain relief for the connected cable are provided via the cable carrier 11. The additional sealing rings 13, 13', 13", 13'" shown in Figure 3 serve to provide a media-tight seal for the connector 10.

[0040] Even though the figures show various aspects or features of the invention in combination, it is apparent to the person skilled in the art – unless otherwise stated – that the combinations shown and discussed are not the only possible ones. In particular, corresponding units or sets of features from different embodiments can be interchanged.

[0041] Applicant: HARTING Electric Stiftung & Co. KG Title: Metal-cast connector component

[0042] Reference symbol

[0043] 1 screw sleeve

[0044] 2 internal threads

[0045] 3 flange

[0046] 4 contact carriers

[0047] 5 Ring connection area

[0048] 6 Nut

[0049] 7 snap ring

[0050] 8 Middle section

[0051] 9 End section

[0052] 10 circular connectors

[0053] 11 cable carriers

[0054] 12 Seal

[0055] 13 Seal

[0056] 14 Gradual elevation

[0057] AR connection direction

[0058] SR Plug direction

Claims

Applicant: HARTING Electric Stiftung & Co. KG Title: Metal-cast connector component Claims 1. Screw sleeve (1) for a circular connector housing, which has a centrally extending internal thread (2), a flange (3) and an adjoining ring connection area (5) characterized in that the internal thread (2) and / or the flange (3) and / or the ring connection area (5) have at least a grade-like production-related elevation (14, 14').

2. Circular connector housing comprising a screw sleeve (1 ) according to claim 1 , a cylindrical middle section part (8) and an end section part (9).

3. Connector housing according to the preceding claim characterized in that the screw sleeve (1 ) has an internal circumferential groove (6) and is attached to the central section part (8) by means of a snap ring (7).

4. Connector housing according to the preceding claim, characterized in that the 5. Method for manufacturing a screw sleeve (1 ) for a circular connector (10), wherein the screw sleeve (1 ) is manufactured in a metal casting process, wherein an internal thread (2) and a circumferential groove (6) are simultaneously produced on the screw sleeve (1 ) in a single operation.

6. Method for manufacturing a screw sleeve (1) according to the preceding claim, characterized in that the method is carried out completely without chips.

7. Method for manufacturing a screw sleeve (1 ) according to one of the two preceding claims, characterized in that a first indentation core, which at least forms the internal thread (2), is inserted into a metal casting mold which essentially forms the outer geometry of the screw sleeve (1 ).

8. Method for producing a screw sleeve (1) according to the preceding claim, characterized in that a second inset core, forming at least one circumferential groove (6) on the inside, is inserted into the metal casting mold.

9. Method for producing a screw sleeve (1) according to the two preceding claims, characterized in that the two insertion cores are simultaneously introduced into the metal casting mold.

10. Circular connector (10) comprising a screw sleeve (1 ) according to claim 1 or manufactured according to a method according to the preceding claim 5.

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