Connector socket and method for manufacturing a connector socket

Description

[0001] The invention relates to an electrical connector socket and a method for producing an electrical connector socket.

[0002] US 2002 / 0187686 A1 shows a socket with a T-shaped terminal and the production of a laminated contact consisting of a laminated cage and a rolled contact holder, which are twisted in a complex manner and with the aid of various tools in a kind of "hourglass shape".

[0003] US Pat. No. 4,657,335 also describes a bushing formed by a relative rotational movement of the ends of a multi-plate cage into a sleeve. To secure the multi-plate cage in the sleeve, rings are slipped over the respective ends of the sleeve.

[0004] US 2003 / 0068931 A1 shows an electrical connector socket comprising a substantially cylindrical socket sleeve which is provided with recesses at its front ends in order to fasten a hyperbolically rotated laminar cage with its connecting tongues to or in these recesses.

[0005] DE 10 2011 105 821 B4 further discloses an electrical connector socket with a cylindrical socket sleeve. The socket sleeve has a receiving space in which a hyperbolically rotated laminar cage is mounted. The socket sleeve has a first and second end face. The laminar cage is positively connected to the socket sleeve by connecting tabs on the first and second end faces of the socket sleeve. Openings are provided in the transition region between the socket sleeve and the connecting tab, and at least one of the connecting tabs of the laminar cage protrudes through one of the openings. DE 10 2012 221384 A1, DE 10 2006 006845 B3, and US 2003 / 068931 A1 disclose further examples of electrical connector sockets.

[0006] EP 0922314 B1 discloses an electrical connector socket according to the preamble of claim 1 and a method for producing an electrical connector socket according to claim 8.

[0007] The solutions known in the prior art all have the disadvantage that manufacturing is very complex, especially since the geometric dimensions of sleeves, end sleeves, and laminar cages must be coordinated. Due to manufacturing constraints, a tolerance range arises, which poses significant practical problems. High-precision tubes must often be used, as the inner tube of the laminar cage must fit into the tubular shape of the surrounding sleeve, and the surrounding sleeve may in turn have to be inserted into another sleeve receptacle and secured there.

[0008] A significant problem is posed by contact systems in which a cylindrical, particularly cylindrically rolled, contact grid has to be fastened to both end flanges in the sleeve surrounding the contact grid and the tolerances have to be coordinated with one another.

[0009] Therefore, connector sockets of this type typically include an inserted contact grid, which is connected to the sleeve using complex material-locking joining processes (such as welding). Nevertheless, a precision tube is often required to ensure at least the inner diameter is within a narrow tolerance range. On the other hand, the contact grid and the flanges typically formed on it are subject to such manufacturing tolerances that conventional joining processes pose manufacturing difficulties.

[0010] The object of the present invention is therefore to overcome the aforementioned disadvantages and to manufacture a connector socket in a much simpler and more economical manner, accepting possibly higher tolerances, while at the same time reducing the number of components, but nevertheless ensuring a high current carrying capacity at high temperature loads, in particular at temperatures between 150° and 170° and partly at higher temperatures.

[0011] The invention is achieved by a connector socket having the features of claim 1 and a method according to the features of claim 8.

[0012] The basic idea of ​​the present invention is not to join the cylindrical lamellar cage at one or both ends using a joining process (such as welding), as is known in the prior art, but to provide recesses at the first end of the lamellar cage, into which bulges of the sleeve are formed by means of a stamped connection in order to fix the lamellar cage in the sleeve, then to twist the lamellar cage, if necessary by a certain angle (in order to form a hyperbolically shaped lamellar cage) and in a further step to form bulges of the sleeve by means of further stamped connections into recesses provided at the other end of the sleeve.

[0013] According to the invention, an electrical connector socket comprising a cylindrical socket sleeve is therefore provided, wherein the socket sleeve is formed with a receiving space into which a cylindrical lamellar cage with a plurality of parallel contact blades is inserted, wherein the lamellar cage has a first and second end-side circumferential collar web between which the contact blades run, wherein the lamellar cage has window-like recesses on both collar webs and wherein a plurality of bulges are introduced into the jacket of the socket sleeve by means of a stamping process, which extend into the window-like recesses in such a way that a force-fitting connection is formed between the lamellar cage and the socket sleeve.

[0014] In an advantageous embodiment of the invention, it is provided that on the first and second gutter web, two or more window-like recesses or openings are arranged at the edge of the respective gutter web in such a way that the respective recess is open on the front side towards the respective edge and is preferably shaped or formed as a front-side toothing.

[0015] It is further advantageous if two or more window-like recesses or openings, each having a length L viewed in the axial direction (A), are provided on the first and second flange webs, into which bulges of an almost identical length L' provided on an inner wall of the bushing sleeve engage, so that an axial movement of the respective flange web is prevented.

[0016] In an advantageous embodiment of the invention, it is provided that window-like recesses with a width B viewed transversely to the axial direction (A) are provided on the first and second flange webs, into which bulges of the same or almost the same width B' provided on an inner wall of the bushing sleeve engage, so that twisting of the respective flange web is prevented.

[0017] It is further advantageous if fastening means on the socket sleeve are provided as embossments in the jacket of the socket sleeve, wherein depressions are formed on the outer almond of the socket sleeve and protruding bulges are formed on the inner jacket of the socket sleeve.

[0018] In an advantageous embodiment of the invention, the fastening means are designed as essentially cuboid-shaped bulges, each with two opposite longitudinal side edges and two opposite transverse side edges. It is further advantageous if the laminar cage has a smaller diameter in a central section, viewed in the axial direction (A), than at the flanges, preferably formed by twisting one flange of the laminar cage relative to the other flange.

[0019] A further aspect of the present invention relates to a method for producing an electrical connector socket as described above, comprising the following method steps: a. Manufacturing a contact lamella grid with two end flanges with a large number of parallel contact lamellas running between them; b. Introducing two or more window-like openings open at the front into the two flanges of the contact lamella grid and transferring the contact lamella grid into a cylindrical lamella cage, c. Providing a socket sleeve with a receiving space and inserting the lamella cage into the receiving space; d. Attaching bulges protruding into the receiving space to the inner shell of the socket sleeve by embossing corresponding to the recesses in the first flange in such a way that the corresponding embossed bulges engage force-fittingly in the window-like openings and fix one of the flanges and e.Attaching further bulges protruding into the receiving space to the inner surface of the bushing sleeve by embossing corresponding to the recesses of the second flange web such that the corresponding second embossed bulges engage force-fittingly in the window-like openings on the second flange web and secure it.

[0020] Advantageously, between step d) and step e), a torsional or rotary movement of the second gutter web relative to the first gutter web takes place.

[0021] Further embodiments of the invention emerge from the patent claims as well as the figures and the associated description of the figures, wherein the figures of the drawings represent the following: Fig. 1 a side view of a socket sleeve with a louvre grille shown next to it; Fig. 2 a front view of an assembled connector socket; Fig. 3 a sectional view along the section line A - A from the Figure 2and Fig. 4 the detail C from the Figure 3 .

[0022] In the following, the invention will be explained with reference to the following embodiment, which is shown in the Fig. 1 to 4 is shown, is explained in more detail. The same reference numerals indicate the same functional or structural features.

[0023] Shown in Figure 1 a side view of a socket sleeve 2 with a lamellar grid 3 shown next to it, wherein the socket sleeve 2 is formed with a receiving space 20 into which the cylindrical lamellar cage 3 with a plurality of parallel contact lamellae 31 in Figures 2 and 3 is introduced.

[0024] The cylindrical and tubular bushing sleeve 2 has a circumferentially closed jacket 7 and is open at both ends.

[0025] The laminar cage 3 has a first and second end-side circumferential flange 32a, 32b, between which a plurality of contact laminations 31 extend. The contact laminations 31 extend essentially parallel to one another, forming a gap between each two adjacent contact laminations 31.

[0026] The lamella cage 3 has window-like recesses 35 on both flanges, which are open at the front towards the respective edge 33a, 33b.

[0027] By means of a stamping process, several bulges 25, as shown in the Figures 2 to 4 visible, are introduced into the casing of the bushing sleeve 2, which extend into the window-like recesses 35 in such a way that a preferably force-fitting connection is formed between the laminar cage 3 and the bushing sleeve 2.

[0028] Furthermore, recesses 26 are formed on the outer shell 24 of the bushing sleeve 2 and, opposite the protruding bulges 25, in the casing 7.

Claims

1. Electrical plug-connector socket (1) comprising a cylindrical socket sleeve (2), wherein the socket sleeve (2) is formed with a receiving space (20) in which a cylindrical lamella cage (3) having a large number of contact lamellae (31) which run in parallel is inserted, wherein the lamella cage (3) has a first and a second end-side circumferential collar web (32a, 32b), the contact lamellae (31) running between said collar webs, wherein a plurality of convex portions (25) are made in the casing of the socket sleeve (2) by a stamping process, characterized in that the lamella cage (3) has window-like recesses (35) on the two collar webs (32a, 32b), wherein the convex portions (25) extend into the window-like recesses (35) in such a way that a force-fitting connection is formed between the lamella cage (3) and the socket sleeve (2).

2. Electrical plug-connector socket (1) according to Claim 1, characterized in that two or more window-like recesses or openings (35) are arranged on the first and the second collar web (32a, 32b) at the edge (33a, 33b) of the respective collar web (32a, 32b) such that the respective recess is open to the respective edge (33a, 33b) at the end side and is preferably shaped or formed as an end-side toothed portion.

3. Electrical plug-connector socket (1) according to Claim 1 or 2, characterized in that two or more window-like recesses or openings (35), each with a length (L) as viewed in axial direction (A), are provided on the first and the second collar web (32a, 32b), convex portions (25) which are respectively provided on an inner wall (23) of the socket sleeve (2) and have a respectively virtually identical length (L') engaging into said recesses or openings, so that axial movement of the respective collar web (32a) is prevented in this way.

4. Electrical plug-connector socket (1) according to one of the preceding claims, characterized in that window-like recesses (35) with a width (B) as viewed transverse to the axial direction (A) are provided on the first and the second collar web (32a, 32b), convex portions (25) which are provided on an inner wall (23) of the socket sleeve (2) and have an identical or almost identical width (B') engaging into said recesses, so that rotation of the respective collar web is prevented.

5. Electrical plug-connector socket (1) according to one of the preceding Claims 2 to 5, characterized in that fastening means are provided on the socket sleeve (2) as stamped portions in the casing of the socket sleeve (2), wherein indentations (26) are formed on the outer casing (24) of the socket sleeve (2) and projecting convex portions (25) are formed on the inner casing (23) of the socket sleeve (2).

6. Electrical plug-connector socket (1) according to one of the preceding Claims 2, 4 to 6, characterized in that fastening means are in the form of substantially cuboidal convex portions with in each case two opposite longitudinal side edges (27) and in each case two opposite lateral side edges (28).

7. Electrical plug-connector socket (1) according to one of the preceding claims, characterized in that the lamella cage (3) has a smaller diameter in a central middle section as viewed in axial direction (A) than at the collar webs (32a, 32b), preferably formed by one collar web (32a) of the lamella cage (3) having been twisted in relation to the other collar web (32b).

8. Method for producing an electrical plug-connector socket (1) according to one of Claims 1 to 7, comprising the following method steps: a. producing a contact lamella grid (3) with two end-side collar webs (32a, 32b) having a large number of parallel contact lamellae (31) which run between said collar webs; b. making two or more window-like openings (35), which are open at the end side, in the two collar webs (32a, 32b) of the contact lamella grid (3) and transforming the contact lamella grid (3) into a cylindrical lamella cage (3), c. providing a socket sleeve (2) with a receiving space (20) and inserting the lamella cage (3) into the receiving space (20); d. fitting convex portions (25), which protrude into the receiving space (20), to the inner casing (23) of the socket sleeve (2) by stamping in a manner corresponding to the recesses (35) of the first collar web (32a) in such a way that the corresponding stamped convex portions (25) engage in a force-fitting manner in the window-like openings (35) and secure one collar web (32a) and also e. fitting further convex portions (25), which protrude into the receiving space (20), to the inner casing (23) of the socket sleeve (2) by stamping in a manner corresponding to the recesses (35) of the second collar web (32a) in such a way that the corresponding stamped convex portions (25) engage in a force-fitting manner in the window-like openings (35) on the second collar web (32a) and secure said collar web.

9. Method according to Claim 8, characterized in that a twisting or rotary movement of the second collar web (32b) in relation to the first collar web (32a) takes place between step d) and step e).