DE3313284A1 - ELECTRICAL PLUG - Google Patents

Description

Grote & Hartmann GmbH & Co. KG, Am Kraftwerk 13, 5 600 Wuppertal 21

Electrical plug

The invention relates to a miniaturized electrical connector made of plastic for low-voltage systems, in particular telecommunications technology, preferably for telephone systems according to the preamble of claim 1.

A well-known connector of this type consists of a connector housing, in which a block-shaped plug insert element is stored. The housing only encases the plug insert element, the latter being the cores of a multi-core, flat Lahnlitzenleitung arranged in a row next to each other receives and stores one-piece metallic contact elements, which have a plug contact area and a wire contact part exhibit. The core contact part penetrates the insulating jacket of a core of a stripped one Area of the Lahnlitzenleitung and makes contact with the metal band, which is e.g. spiral around a nylon core is wrapped around. For this purpose, the contact area of the core contact part consists of two lengthways

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Schlossbleiche 20 P.O. Box 130219 D-5600 Wuppertal 1 Telephone (0202) 445096/451226 Fax (0202) 451226 Telex 8591273 soza

Patent attorney Dr.-Ing. Dipl.-Ing. A. So * Patent attorney Dipl.-Ing. Chr. Zapf Patent Attorney Dr.-Ing. Dipl.-Ing. W. Hasse

Authorized representative at the European Patent Office Wuppertal - Munich

European patent attorneys

Acute-angled cutting edges arranged one behind the other of the vein, which have penetrated the vein.

Difficult and therefore disadvantageous with this known connector is the controlled insertion of the metallic contact elements, which are only pressed into their final position in the bearing block after the wires have been inserted can be. When installing, the contact with the wire is established by inserting the wire contact part into the wire is pressed. Means that allow controlled penetration, d-.h. . in particular 'the depth of penetration control, are not provided, so that there is a significant deficiency.

The object of the invention is to create a simple three-dimensional shape for an electrical connector that has a simple Threading the cores of a Lahnlitzenleitung and controlled contacting of the cores enables.

The object is achieved in an electrical connector according to the preamble of claim 1 by the characterizing Features of claim 1 solved. Expedient embodiments and refinements of the invention are characterized in the subclaims. The invention is explained in more detail by way of example with the aid of the drawing. Show it:

Fig. La shows a cross section through the plug in ^:

the pre-latching position, 30

Fig. Ib shows a cross section through the plug in the locked end position,

Schlossbleiche 20. P.O. Box 130219 · D-5600 Wuppertal 1 Patent Attorney Dr-lnn Dini-lnn A

DR. SOLF & ZAPF

Authorized representative at the European Patent Office Wuppertal - Munich

European patent attorneys

-10-Fig. 2 a longitudinal section through the connector,

3 shows a plan view of the connector block with the housing cut away,

4 shows a longitudinal section through a further embodiment of the connector according to the invention,

Fig. 5 is a cross section through a housing part of the, · Connector with a particularly expedient arrangement of the core block.

The connector according to the invention is preferably designed as an angled connector and is constructed and consists of two parts from the housing part 1 and the plug part 2 mounted in the housing part, these parts preferably with one another are locked.

The connector part 2 has a connector strip 4 protruding downward from the housing part 1 and one in the housing part 1 seated bearing block 5. When viewed from above (FIG. 3), parts 4 and 5 are square, with the tongue 4 is narrower than the bearing block 5 (Fig. Fig. 1, Ib).

The bearing block 5 has slit-shaped, narrow passages

3, which are expediently in threes in the longitudinal direction of the part 2 in two rows arranged side by side, the clear lateral distance between the two Rows corresponds to the width of the bar 4 and the passages 3 the bearing block 5 in the direction of the bar

4. On the bar 4 there are, for example, four equally spaced ribs 6, which protrude vertically downwards and, viewed in cross section, U-shaped grooves 8 in the strip 4

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Schlossbleiche 20, Postfach 130219 · D-5600 Wuppertal 1 Patent attorney Dr.-Ing. Dipl.-Ing. A. SoIf

Telephone (0202) 445036/451226 Fax (0202) 451226 Patent attorney Dipl.-Ing. Chr. Zapf

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Wuppertal - Munich

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form. In the camp block 5 can also move lengthways extending grooves 7 be introduced superficially, from a front passage 3 up to the height of the rear passages 3 run and end between the rear passages 3 of the two rows (e.g. B. Fig. 3).

In the U-shaped grooves 8, correspondingly shaped plug-in contact webs 9 are supported by one of a strip-shaped

- ^ q sheet metal stamping existing contact element 10, the contact elements 10 being fastened and fixed in position in particular in the bearing block 5, for which purpose suitable means known per se are used (not shown). The extension of each contact web 9 extends through a passage 3 and merges into the core contact tongue 11, which protrudes over the surface of the bearing block 5 in a vertical position. The contact elements 10 seated in the front grooves 8 have connecting webs 12, which extend preferably at right angles to the rear from the webs 9, sit in the grooves 7 and to which the wire contact tongues 11 extending upwards at right angles are connected. It is essential that all wire contact tongues H ₁ viewed in the transverse direction of the connector, are arranged next to one another at a distance and protrude vertically upwards.

The upper edge 13 of the contact tongues 11 is blade-shaped designed and expediently has in the side

'"" ■ ": _ .-" viewed (Fig. 2) two hump-like, rounded ones - Penetration cutting 14 on.

The housing part 1 has a bottom 16 and two side walls 17, a front wall 18 preferably also being provided can be. On the bottom 16, a vein block is preferably arranged in one piece, that of the bottom 16, according to

Schlossbleiche 20, PO Box 130219 D-5600 Wuppertal 1

Pfitcntanvwilt Or-Irig. Dipl-Ing. A SoIf

33 Ί 3284 DR. SOLF & ZAPF

Approved representative at the European Patent Office Wuppertal - Munich

European patent attorneys

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so protrudes into the interior of the housing at the bottom. The block 19 is narrower than the clear distance between the side walls 17 is executed so that next to the block gaps 20 remain. The block 19 is preferably also made shorter than the length of the housing, and is located in the area of the wire contact tongues 11 of the Contact elements 10.

The block 19 has, viewed from the rear, lying next to one another at a distance from one another in a horizontal plane Holes, preferably blind holes 21, on / which extend to the front. From about the middle of this one Starting from holes 21, a passage designed as a longitudinal slot 22 penetrates the block 19, the Cross-sectional shape corresponds to the cross-sectional shape of a core contact tongue 11, so that the core contact tongues 11 sit positively in the slots 22.

In an upward extension of the slots 22, depressions 23 are expediently introduced, which are similar to the cross-sectional shape of the slots 22. The holes 21 preferably begin in a funnel shape, so that an insertion funnel 24 is formed. In addition, it is advisable to extend the block 19 to the rear and to arrange a chamber-shaped opening 25 in front of the holes 21, the height and width of which corresponds to the height and width of the flat tinsel cable 26, so that a stop abutment edge 27 is formed for the front edge 28 of the sheath of the tinsel cable 26 will.
30th

The wire contact tongues 11 sit in the slots 22 and protrude with their cutting edges 14 into the holes 21, with

Schlossbleiche 20, Postfach 130219 · D-5600 Wuppertal 1 Patent attorney Dr.-Ing. Dipl.-Ing. A. SoIf

Telephone (0202) 445096/451226 Fax (0202) 451226 Patent attorney Dipl.-Ing. Chr. Zapf

Telex: 8591 273 soza Patent Attorney Dr.-Ing. Dipl.-Ing. W. Hasse

^DR · ^{SOLF & ZAPF}

Authorized representatives at the European Patent Office European Patent Attorneys

Wuppertal - Munich

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In each hole 21 a wire 29 of the Lahnlitzenleitung 26 is inserted, into which the cutting edges 14 penetrated in a contacting manner are (Fig. Ib and 2).

It is essential that the connector according to the invention with Contact elements 10 can be supplied fitted and the contacting with a braided wire afterwards can be done. For this purpose it is ensured that the contact tongues 11 in the delivery condition of the plug do not protrude into the holes 21 and can be inserted into the holes if, for. B. the wires 29 inserted into the holes 21 have been.

According to one embodiment of the invention is to this Purpose a pre-locking division of the housing part on the plug part 2 is provided. The pre-locking division can e.g. by at least two locking webs 30 protruding from the surface of the bearing block 5 in the outer side area an outwardly pointing locking lug 31 can be ensured, the locking webs 30 in the space 20 protrude and the locking lugs 31 engage behind locking edges 32, 32a, which are introduced into the side walls 17, wherein the side walls and / or the locking webs 30 can deflect inwards or outwards in an elastically resilient manner.

30th

The locking edges 32a are lower than the locking edges 32, i.e. below the locking edges 32, and mark the Pre-locking position of the plug, i.e. the spacing of the locking edges 32 and 32a corresponds exactly to the desired one Positions of the wire contact tongues 11. For this purpose, stop edges 33, 33a above the edges are also expedient 32, 32a to be provided against which the upper edge of the locking webs 30 abuts when a locking position is reached,

Schlossbleiche 20, P.O. Box 130219 0-5600 Wuppertal 1

Palentanwalt Dr-Ina Dinl-Inn A SnIf

Approved representatives at the European Patent Office Wuppertal - Munich

European patent attorneys

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so that the locking positions are precisely defined. If the locking edges 32, 3 2a, 33, 3 3a of holes 3 4 in the Walls 17 formed, the latching can be canceled in an advantageous manner from the outside by the locking webs 30 are pressed from the outside inwards. In the final position of the plug (Fig. Ib) sits the lower surface of the block 19 on the surface of the bearing block 5, whereby there is also an exact limitation of the collapsibility of parts 1 and 2 results. In the pre-locking position according to FIG. La, the surfaces are on Distance and the contact tongues 11 already protrude into the slots 22, so that the tongues 11 are already fixed in position. To simplify the introduction of the tongues 11 in the Slots 22, the mouths 22a of the slots 22 are widened in a funnel shape.

In another embodiment of the invention according to Fig. 5 is the block 19 in a cutout 32 in the bottom 16 of the housing part 1 and is expedient Laterally attached to the walls 17 with thin tab-like webs 36. The webs 3 6 allow the Block 19 to be moved in the direction of double arrow 37. The housing part 1 is, for example, suitable locking means supported on the plug part 2, the block 19 at a distance above the surface of the bearing block 5 is located (not shown). The contact tongues 11 protrude not in the holes 21, but already in the slots 22. If the cores 29 are inserted into the holes 21, is the block 19 is pressed downwards, the lobe-like webs 36 giving way, for example due to their excess width stretch or, if elastic, stretch. The contact tongues 11 penetrate the veins 29 to the lower surface of the block 19 abuts on the surface of the bearing block 5 and suitable locking means, the act between the housing part 1 and the block 19

Schlossbleiche 20, Postfach 130219 · D-5600 Wuppertal 1 Patent attorney Dr-Ing Dipl.-Ing. A. SoIf

Telephone (0202) 445096 451226 ■ Fax (0202) 451226 Patent attorney Dipl-Ing Chr. Zapf

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(not shown), so that the block 19 is fixed in position A severing of the fastening webs 36 can also be provided here.

The novel construction of the plug according to the invention enables also provide strain relief on a core 29 and / or on the sheath of the Lahnlitzenleitung 26 act without curvatures or the like. Deformations occur that displace the vein or the sheath spatially to the outside. In the embodiment of the plug 2 is for the strain relief in the rear area is a block across the surfaces of the bearing! 5 extending bar 38 is arranged with a blade-like edge 39, which has a perforated slot 40 in the bottom the chamber-shaped opening 25 of the block 19 reaches through and is pressed into the sheath of the Lahnlitzenleitung 26. Since the Lahnlitzenleitung cannot evade, it penetrates simply insert the bar into the material of the sheath without shifting the Lahnlitzenleitung in the axial direction or outwards. In the same way, a strain relief device for each wire 29 may be provided (Fig. 4). A mandrel 41 passes through a hole 40 which extends into a hole 21, and presses into core 2 9.

30th

The invention solves the problem identified by relocating the tasks to the housing part on the one hand and on the other hand in the plug part 2. The housing part contains the bearing elements for the wires and the plug part stores the contact elements, the assembly of the two parts causing the penetration contact.

Multi-part plugs with certain functional tasks of the parts with regard to ensuring contact

-U 4 O C \ r \

Approved agent at the European Patent Office European godparents! Attorneys

Wuppertal - Munich

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are known in the generic field (US-PS 3 761 869). In this known connector, the wires are placed between two parts of the connector and the Pieces put together, the wires being clamped.

The two-part embodiment has not proven itself, because the positioning of the wires and thus the precise, controllable penetration of the contact elements into the Veins is almost impossible. As a result, one went over to one-piece plugs (DE-OS 24 32 122 and DE-OS 27 53 822), although these connectors have significant disadvantages. E.g. the contact elements are individually pressed in after all wires have already been inserted into a slot. The veins can be sideways evade so that the contact can be disturbed.

In contrast, the invention has gone back a step and has the two-part embodiment of a Steckers took up again, but found a solution that optimally distributes functions guaranteed. There are no models from the field of penetration contacting technology.

25th

According to a particular embodiment of the invention have the wire contact tongues 11 at their outer edges on bar-shaped material projections 11a, which in such a way are arranged that when the housing part 1 is locked with the plug part 2. in the wall of a Penetrate slot 22 and get caught there.

In the same way, on the connecting webs 12 or the plug contact webs 9 in the area of the passages 3 locking means, for example barb-shaped material projections 10a, are provided, which provide a fixed positioning

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Schlossbleiche 20. Postlach 1302 19 D-5G00 Wuppertal 1 Telephone (0202) 445096/451226 Fax (0202) 451226 Telex 8591 273 soza

Patent attorney Dr.-Irig Dipl.-Ing. A. SoIf Patent attorney Dipl -Ing Chr. Zapf Patent attorney Dr-Ing Dipl.-Ing W Hasse

^DR

331328A

^{& ZAPF}

Authorized representative at the European Patent Office " European patent attorneys

Wuppertal · Munich

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ensure the contact elements 10 in the bearing block 5. In combination with the barb-shaped material projections 11a, this results when the housing part is locked 1 with the plug part 2 that the parts 1 and 2 also by the positioning means 11a and 10 together being held.

In addition, the positioning means lla ensures that that the contact remains almost unchanged because the wire contact tongues 11 in the wire block 19 are fixed.

A major advantage of the invention compared to the prior art is that the contact elements 10 sit immovable in their bearing block 5 and for contacting only the core block 19 on the contact webs 11 is pushed without the position of the contact elements in the bearing block 5 is changed. From this Arrangement results in a controlled contact of the wires. This is the case with the known connectors where at least some of the contact elements had to be moved in their bearing block for contacting, not possible.

Schlossbleiche 20 Postlach 130113 D-5600 Wuppertal 1 Telpfnn (090?) 44Μ) 9β / <151?: 'Β Tolpfax

Patent attorney Dr Ing Dipl -Inq A Soll (Munich) Pni «ni« rm, .- iii ninl in " ru -?

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Claims (1)

Uff - ^; - ^: DR. SOLF & ZAPF Authorized representative at the European Patent Office Wuppertal - Munich European patent attorneys I / aw / 2818 Grote & Hartmann GmbH & Co. KG,
Am Kraftwerk 13, 5600 Wuppertal 21 Expectations: Plug for low-voltage systems, especially telecommunications technology, preferably for telephone systems, consisting of a housing part and a plug part mounted therein, the plug part being a bearing block seated in the housing and one from the Housing protruding connector strip, the bearing block from a stamped sheet metal contact elements "~ stores one in the area of the connector strip have a plug contact web and a contact tongue positioned in the area - 10 of the bearing block, in the bearing block in one plane arranged next to each other ■ r- - "--holes are provided, in which wires of an ins Insert the flat tinsel cable introduced into the housing, perpendicular to the longitudinal axis of the holes Slit leads to the outside, which the contact tongue of the contact element reaches through, the cutting in the veins have penetrated and means are provided to relieve strain on the braided wire are characterized by that the contact elements (10) in the bearing block (5) Schlossbleiche 20, Postfach 130219 ■ D-5600 Wuppertall Paiontanuioii iv inn r .. "i i" "α o-u 'ftf / # 751) Uu J βι 3313284 DR. SOLF & ZAPF Authorized representative at the European Patent Office European Patent Attorneys Wuppertal - Munich -2- are attached and fixed in position and the wire contact tongues (11) standing vertically the surface of the bearing block (5) protrude, reach through the longitudinal slots (22) of a core block (19) and insert them into holes (21) open, which are arranged perpendicular to the slots (22) in the vein block (19), which is part of the Housing part (1), the contact tongues (11) in the holes (21) the cores (29) of a braided wire (26) penetrate contacting. Plug according to claim 1, characterized in that that the housing part (1) has a bottom (16) and two ■ side walls (17), and the core block (19) is arranged in one piece at the bottom (16), the block (19) from the bottom (16) to protrudes into the interior of the housing at the bottom. 3. Plug according to claim 2, characterized in that that the block (19) is narrower than the clear distance between the side walls (17) is executed so that spaces (20) remain next to the block (19). 4. Connector according to one or more of claims 1 ■ - 5 to 3, characterized in that that the block (19) in a horizontal plane side by side at a distance from each other blind holes (21), which extend forward and, starting from the longitudinal center thereof, each have a longitudinal slot (22) formed passage penetrates the block (19), the cross-sectional shape of which corresponds to the cross-sectional shape of a wire contact tongue (11). GOPV Schlossbleiche 20. P.O. Box 130219 D-5600 Wuppertal 1 Telephone (0202) 445096/451226 Fax (0202) 451226 Telex 8591273 soza Patent attorney Dr.-Ing. DipL-Ing. A. Should Patent attorney Dipl.-Ing. Chr Zapf Patent Attorney Dr.-Ing. Dipl.-Ing. W. Hasse Authorized representatives at the European Patent Office European Patent Attorneys DR. SOLF & ZAPF Wuppertal - Munich 5. Plug according to one or more of claims 1 to 3, characterized in that _f are inserted in the extension slots (22) to the top recesses (23). 10 15 Plug according to one or more of Claims 1 to 5, characterized in that that the holes (21) begin funnel-shaped, so that an insertion funnel (24) is formed. Connector according to one or more of Claims 1 to 6, characterized in that that the block (19) is carried out extended to the rear and a chamber-shaped opening (25) the holes (21) is upstream. 20th Connector according to claim 7, characterized in that that the height and width of the chamber-shaped opening (25) the height and width of the flat Lahnlitzenleitung (26) corresponds, with a stop abutment edge (27) for the front edge (28) of the sheath the Lahnlitzenleitung (26) is formed. 25 30 9. Plug according to one or more of claims 1 to 8, characterized in that that the wire contact tongues (11) protrude with their cutting edges (14) into the holes (21) which are in a wire (29) of the Lahnlitzenleitung (26) have penetrated contacting. 10. Connector according to one or more of claims 1 to 9, characterized in that the plug part (2) one down from the Schlossbleiche 20, PO Box 130219 D-5600 Wuppertal 1 Palentanwalt Dr.-Ing. Dipl.-Ing. A. Should Authorized representatives at the European Patent Office European Patent Attorneys Wuppertal - Munich Housing part (1) has protruding plug-in strip (4) and a bearing lock (5) seated in the housing part (1), in the bearing block (5) slot-shaped narrow passages (3) are provided, which the bearing block (5) in the direction of the bar (4 ") and ■ which are penetrated by parts of the contact elements (10). 11. Connector according to claim 10, characterized in that on the bar (4) equidistant ribs (6) are arranged, which protrude vertically downwards and, viewed in cross section, U-shaped grooves (8) form. 15th 12. Plug according to claim 11, characterized in that in the U-shaped grooves (8) correspondingly shaped plug contact webs (9) of the contact elements (10) consisting of a strip-shaped stamped sheet metal part, the contact elements (10) in particular in the bearing block . (5) fastened and la.gefixiert, the extension of each contact web (9) passes through a passage (3) and merges into the wire contact tongue (11). 25th 13. Connector according to claim 12, characterized in that that the contact elements (10) seated in the front grooves (8) are connecting webs (12) which extend at right angles to the rear from the webs (9), in grooves (7) of the block (5) and to which the wire contact tongues (11) extending upwards at right angles are connected. COPY Schlossbleiche 20, PO Box 130219 D-5600 Wuppertal 1 Telephone (0202) 4450.96 / 451226 ■ Fax (0202) 451226 Telex: 8591273 soza Patent attorney Dr.-Ing. Dipl.-Ing. A. SoIf Patent Attorney Dipl.-Ing. Chr. Zapf Palentanwalt Dr.-Ing. Dipl.-Ing. W. Hasse mm DR. Authorized representative at the European Patent Office Wuppertal - Munich European patent attorneys 14. Connector according to one or more of the claims 1 to 13, characterized in that all wire contact tongues (11), viewed in the transverse direction of the plug, are arranged next to one another at a distance.
5 15. Plug according to one or more of the claims 1 to 14, characterized in that locking means between the housing part (1) and plug part (2) are provided, which ensure pre-locking and unlocking, in the pre-locking position the contact tongues (11) do not protrude into the holes (21). 16. Connector according to claim 15, characterized in that the pre-locking division is ensured by at least two, the surface of the bearing block (5) in the outer area protruding locking webs (30) with an outwardly facing locking lug (31), wherein the locking webs (30) protrude into the space (20) of the housing part (1) - - and the locking lugs (31) can engage behind locking edges (32, 32a) which are introduced into the side walls (17), the side walls and / or the '..:, locking webs (30) inwardly or outwardly elastic __ ^ " be able to dodge resiliently. " 17. Plug according to claim 16, characterized in that that the locking edges (32a) are lower than the locking edges (32), the distance between these edges the desired positions corresponds to the wire contact tongues (11). 18. Connector according to one or more of the claims Schlossbleiche 20. Postfach 130219 · D-5600 Wuppertal 1 Patent Attorney Dr.-Ing Dipl-Ing A SoIf Telephone_ (0202) ^ 445096/451226 · Fax (0202) 451226 Patent Attorney! Dipl.-Ing. Chr. Zapf DR. SOLF '& ZAPF Authorized representatives at the European Patent Office European Patent Attorneys Wuppertal - Munich 15 to 17, characterized in that stop edges (33, 33a) are above the edges (32, 32a) are provided. 19. Connector according to one or more of claims 15 to 18, characterized in that it is not marked e t that the locking edges (32, 32a, 33, 33a) are formed by holes (34) in the walls (17). 20. Connector according to one or more of claims 15 to 19, characterized in that that in the final locking position of the plug the sub-surface of the block (19) on the surface of the bearing block (5) is seated and in the pre-latching position these surfaces are at a distance. 21. Connector according to claim 20, characterized in that that in the pre-locking division the contact tongues (11) are already in the slots 20 (22) protrude. 22. Connector according to one or more of claims 1 to 21, characterized in that that the mouths (22a) of the slots (22) are widened in a funnel shape. 30th 23. Plug according to one or more of claims 1 to 22, characterized in that ze i c hn e t that the block (19) is located in a cutout (32) in the bottom (16) of the housing part (1) and is attached laterally to the walls (17) with thin, flap-like webs (36). COPV Schlossbleiche 20, Postfach 130219 ■ D-5600 Wuppertal 1 Telephone (0202) 445096/451226 Fax (0202) 451226 Telex: 8591 273 sozä Patent attorney Dr.-lng. Dipl.-Ing. A. SoIf Patent attorney Dipl.-Ing. Chr. Zapf Patent Attorney Dr.-lng. Dipl.-Ing. W hate Authorized representative at the European Patent Office '- Wuppertal - Munich European patent attorneys -7- 24. Connector according to claim 23, characterized in that that the webs (36) are designed such that they allow the block (19), in the direction of the double arrow. (37) to be moved. 25. Plug according to claim 23 and / or 24, characterized in that the webs (36) are made longer than the width of the space (20). 26. Plug according to claim 23 and / or 24, characterized in that the webs (36) are designed to be elastically stretchable. 27. Plug according to one or more of claims 1 to 26, characterized in that the means for strain relief are arranged in the rear region of the plug and are formed from a strip (38) extending transversely over the surface of the bearing block (5), which one Perforated slot (40) in the bottom of the chamber-shaped opening ″ (25) of the block (19) extends through and is pressed into the sheath of the Lahnlitzenleitung (26).
V .... 25 28-. Connector according to claim 27, characterized in that it is indicates that the bar (38) with a blade-like edge (39) is equipped. 29. Plug according to one or more of claims 1 to 28, characterized in that that the means for strain relief consist of a mandrel (41) which extends through a hole (40), which extends into a hole (21), the mandrel (41) presses in the wire (29). Schlossbleiche 20. P.O. Box 130219 · D-5600 Wuppertal 1 Patent Attorney Dr.-Ing. Dipl-Ing A SoIf