DE2357900A1 - ELECTRICAL CONTACTOR FOR CONNECTION TO FLAT CABLE - Google Patents

Description

Electrical contact element for connection to flat cable priority; Nov. 29, 1972; Great Britain; No. 55028/72

The invention relates to an electrical contact element for connection to a flat conductor of a flexible flat cable,

The term "flexible flat cable" as used herein relates also on cables with several spaced apart lying flat conductors which are either embedded in insulation material or rest on the surface of an insulation material; also on flexible etched Circuits in which flat conductor runs on a flexible substrate rest.

409822/0860

AMP 3233 - P. -

It is an electrical contact element made from sheet metal known (cf. GB-PS '1 261 123) with a connection part for connection to a flat conductor of a flexible flat— kabeis. The connection part has a bottom and a above this spaced platform. The platform is provided with a pointed tongue in such a way that that when pressing the connection part against a flexible flat cable, which is arranged between the platform and the floor is, the tongue penetrates the cable and effectively engages with a flat conductor.

For many uses, the flat conductors of flexible flat cables can have a thickness of only 0.38 mm; It is true that many electrical contact elements have already been proposed for pressure connection with flat conductors of this type have been, however, difficulties have arisen in producing a pressure connection that is stable in Way has the required electrical and mechanical properties.

An electrical contact member according to the invention has on a base of double thickness, wherein a first layer of the base has a through opening which is aligned with a bump formed in the second layer of soil; the elevation has one on the opening Concave surface facing too, so that when pressed on, the pointed tongue provided on the platform after penetration of the cable penetrates the opening and engages the concave surface of the elevation, making the tongue laterally distracted and pulling the tongue out through the opening is made impossible.

409822/0880

An advantage of the electrical contact element according to the invention consists in: that with a flat conductor of a flexible Flaehkäbels good electrical and mechanical contact is made, with an easy-to-apply pressure connection. Also, by the distraction and the locking of the tongue resulting therefrom sefahr minimizes the fact that the contract is caused by the Worsening of the pressure connection-worsened ..

In a preferred embodiment of the invention, the double thickness bottom is formed thereby. that the terminal part "is ümgefaltet, veriamf along one end of a front to an opposite ßinterende of Anschlußtteils- border line;? here are ά ± & first and second SefctehYfc of substantially equal width ,, the platform is of the same width as the Layers are connected to the pre-fabric of the first layer and the contact part is connected to the front end of the second layer and is of the same width as this.

One advantage of the electrical contact element according to this preferred embodiment is that it is suitable for being pressed onto flat conductors which are arranged along a cable with narrow center-to-center distances; _r because the contact "part and the Änschlußteil of moving more width.

The invention is explained in more detail below with reference to the drawing explained. It show * ■ ■ "■

1 shows a side view of an electrical contact element; and

Fig. 2 is a plan view of a sheet metal blank from which the electrical contact member of Fig. 1 is shaped. ,

409822 / 08B0

AMP 3233 - 4 -

An electrical contact element 1 is manufactured from a sheet metal blank 2 made of electrically conductive material. That Contact element 1 consists of a part 3 for connection to a flat conductor of a flexible flat cable (not shown) and a contact part 4 for electrical connection with an electrical counter-contact.

The connection part 3 has a bottom 5 of double thickness on that is formed by. Fold over the part 3 along a central fold line a-b (see. Fig. 2), so that in Openings 6 formed in a first layer 7 of the floor 5 are aligned with one in a second layer 9 of the floor formed elevation 8. The elevation 8 has a concave surface 10 to run towards the openings 6.

A platform is connected to the front end of the first layer 7 and is folded so that it lies over the layer 7. As shown in Fig. 2, the platform 20 is folded over along a line c-d after the fold line a-b along the length a-c was severed. A small hole is formed at point c to simplify the separating and folding steps.

Pointed tongues 22 are formed from the platform 20 and extend towards the openings 6 and are flush with them this.

The contact part 4, which can be of any shape, is of the same width as the connection part 3.

The end of a flexible flat cable (not shown) is between the platform 20 and the bottom 5 of the connector so inserted that a flat conductor with the platform and flush with the ground. Then the connection part '3 is pressed against the cable that the pointed tongues 22 the insulation

409822/0860

AMP 3233 - 5 -

of the cable and the flat conductor penetrate and their respective Pass through openings 6 and engage the concave surface 10 of the elevation 8. Through the surface 10, the tongues 22 are deflected laterally, which prevents the tongues from being pulled out through their respective openings 6 in the event of a relaxation of the pressure connection will.

An advantage of the contact element described is that with a flat conductor of a flexible flat cable a good electrical and mechanical contact is established, by means of a pressure connection that is easy to attach. By the distraction and the resulting lockout The tongues will minimize the possibility of contact over time due to the weakening of the Pressure connection deteriorated »". -

Another advantage is that the contact member Suitable for press-on connection with flat conductors, which are arranged along a cable with narrow center-to-center distances are, since the contact part and the connection part of the same Width are. ·. "." ·

The contact member according to the invention also has the advantage on that in advance a number of electrical contact organs without difficulty in passages in an insulating housing can be provided; each round has one Opening for the entry of a die which exerts a pressure on the platform 20 after a flexible one has been inserted Flat cable between the platform 20 and the floor 5.

40982270880

This facilitates the assembly of electrical harnesses consisting of flexible flat cables and their corresponding Contact organs, relieved.

Claims;

409 8 22/0880

Claims (2)

P a te η ta η s ■ ρ r ü ehe Electrical contact element made of sheet metal with a connection part for connection to a flat conductor of a flexible flat cable, the connection part having a base and a platform above the base at a distance and the platform having a pointed tongue so that when the " Connection partly to a flexible flat cable lying between the platform and the floor, the tongue penetrates the cable and forms electrical contact with a flat conductor of the cable, since you rchgeke η η ζ calibrate that the floor (5) is twice as thick, that one first layer (7) of the bottom (5) has a through opening (6) which is aligned with a raised portion (8) formed in the second layer (9) of the 'floor (5), and that the raised portion (8) has a on the opening (6) to extending concave surface (1O) forms, so that during the pressing process the pointed tongue (22) formed on the platform (20) after penetrating the flexible flat cable, the opening (6) d penetrates and engages the concave surface (10) of the elevation (8), as a result of which the tongue (22) is deflected to the side and prevented from being pulled out through the opening (6). 2. Elektrisches'Kontaktorgan according to claim 1, characterized geke η η ζ eich η et that the bottom (5) of double thickness is formed by folding over the connecting part along a line extending from a front end to an opposite rear end 'of the connecting part (3) , 4098 22/0860 AMP 3233 -. </ ~ the first and second layers (7,9) being substantially have the same width that the platform (20) is of the same width as the layers (7,9) and with the Front end of the first layer (7) is connected, and that the contact part (4) with the front end of the second layer (9) connected and of the same width as the second layer (9). ν Electrical contact element according to Claim 1 or 2, two spaced apart on the platform Tongues are provided, characterized in that each of the tongues (22) with a The opening (6) in the first layer (7) is aligned, and that the elevation (8) is elongated and extends in such a way that that it covers the spaced apart openings (6). 40 9 8 22/0860