DE102007001525A1 - Cable lug, has pipe section-outer surface with point angle that amounts to preset degree, where lug is made of copper material, which exhibits chromium, silver, iron, and titanium as alloy element, and is nickel-plated - Google Patents

Abstract

The lug (1) has a retaining pipe section (2) provided for a cable, and an integrally molded flat-connecting section (3), where the lug is made of a copper material, which exhibits chromium, silver, iron, and titanium as an alloy element. A point angle of a pipe section-outer surface amounts to 34 degree, and the lug is nickel-plated. The flat-connecting section is formed by a pipe convolution.

Description

The The invention relates to a cable lug with a receiving tube section for the cable and a molded, bore having flat part connecting portion, wherein the cable lug is made of copper material and a pipe section outer surface in a transition region to the flat part connecting portion encloses an acute angle with a vertical.

Such cable lugs are known in a variety of configurations. The state of the art is approximately on the DE 10 2005 007 203 A1 directed.

It there is a need such cable lugs, without the To rely on a copper base, if possible Resistant to high temperatures resistant to train.

in the With regard to the stated task, the Invention before that the copper material as alloying components Chrome, silver, iron and titanium that has the sharp angle 34 ° or more and that the cable lug is nickel plated.

The mentioned alloying components provide a significantly higher Temperature stability of the copper material, without the desirable Conductive properties are impaired. As a result of that said acute angle is 34 ° or more, can also make the necessary transformations without interference of the material are carried out. The nickel plating yields a desired long-term stability.

In advantageous embodiment is provided that the copper material furthermore contains as an alloy the component silicon.

Of the called acute angle can in further detail 36 ° to 40 °, preferably at least 38 °, wherein with regard to the latter, an excess of 40 ° in the Framework of the invention lies.

Of the Flat part connecting portion may preferably by tube folding be formed. The cable lug is then made entirely of a copper tube (formed in the indicated alloy).

Regarding of the alloying ingredients, the following is preferable. The alloying component chromium can in a proportion of 0.3-0.7%, preferably about 0.5% be included. The alloying element silver can in one part from 0.05-0.15%, preferably about 0.1%. Of the Alloy component iron may be in a proportion of 0.04-0.12%, preferably be contained about 0.08%. The alloying constituent titanium can in a range of 0.03-0.09%, preferably about 0.06% be. Finally, the alloying element silicon can be used in a range of 0.015-0.045%, preferably 0.03% be.

The Nickel coating can conventionally be applied by electroplating be. But it is also possible a chemical nickel plating, then preferably as nickel-phosphorus alloy. It may, however, for example to act a nickel-boron alloy. The deposition takes place in Ways of reduction. The reducing agent is, for example, sodium hypophosphite for use.

below the invention is further described with reference to the attached drawing, which, however, represents only one embodiment, explained. Hereby shows:

1 a perspective view of the cable lug;

2 a side view of the cable lug, partially cut open; and

3 a view of the cable lug from above, partially cut away.

Shown and described is a cable lug 1 holding a pickup pipe section 2 and a flat part connecting portion 3 having. In the flat part connecting portion 3 is a hole 4 educated. For example, for receiving a nut, which is then screwed onto a then passing through the bore, threaded shaft, or for receiving a bolt, possibly a bolt. In further detail, this is also the already mentioned DE 10 2005 007 203 A1 directed. The cable lug 1 is made of a tube by forming. In this respect, the front side is at the flat part connecting portion 3 the dividing line resulting from compression of the tube in this area 5 to recognize.

The open intake pipe section 2 , see also 2 and 3 , has an inwardly facing chamfer 6 on.

The intake pipe section 2 goes over a transitional area 7 in the flat part connecting portion 3 above. A pipe section outer surface (viewed in lateral outline) of the transition region 7 includes with a vertical S an acute angle α.

Of the acute angle α is in the embodiment 38 °.

The cable lug as a whole is formed from said tube, wherein the tube is a copper tube, that is, consists of a copper-based material.

Specifically, it is a copper alloy composed as follows: Cr 0.5% Ag 0.1% Fe 0.08% Ti 0.06% Si 0.03% Cu Rest.

A Variation of the alloy components, especially in the in the Claims specified areas is possible.

All disclosed features are essential to the invention (in itself). In the disclosure of the application is hereby also the disclosure content the associated / attached priority documents (Copy of the advance notice) fully included, too for the purpose, features of these documents in claims present Registration with.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005007203 A1 [0002, 0015]

Claims (13)

Cable lug ( 1 ) with a receiving tube section ( 2 ) for the cable and a molded, a bore ( 4 ) having flat part connecting portion ( 3 ), whereby the cable lug ( 1 ) consists of a copper material and a pipe section outer surface in a transition region ( 7 ) to the flat part connecting portion (FIG. 3 ) with a perpendicular S includes an acute angle, characterized in that the copper material comprises as alloying components Cr, Ag, Fe and Ti, that the acute angle is 34 ° or more and that the cable lug ( 1 ) is nickel plated. Cable lug according to claim 1 or in particular according thereto, characterized in that the acute angle is 36 ° -40 °, preferably 38 °. Lug according to one or more of the preceding claims or in particular according thereto, characterized in that the flat part connecting portion ( 3 ) is formed by tube folding. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a chromium content of 0.3-0.7%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a chromium content of 0.5%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a proportion of silver of 0.05-0.15%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a proportion of silver of 0.1%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has an iron content of 0.04-0.12%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has an iron content of 0.08%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a titanium content of 0.03-0.09%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a titanium content of 0.06%. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a proportion of silicon of 0.015-0.045% having. Cable lug according to one or more of the preceding Claims or in particular according thereto, characterized that the copper material has a proportion of silicon of 0.03%.