CN116711160A - Contact device with crimp plug - Google Patents

Abstract

The invention relates to a contact device comprising a crimp plug (2) and an electrical conductor bundle (3) which is firmly connected to the crimp plug (2), the conductor bundle having a plurality of wires, in particular a plurality of carbon wires made of graphite fibers and/or carbon nanotubes, wherein the crimp plug (2) has a connection section (4) for mechanically and electrically connecting the crimp plug (2) to the conductor bundle (3), wherein the connection section (4) of the crimp plug (2) has a first clamping region (5) for clamping a first bundle section (3.1) of the conductor bundle (3) and a second clamping region (6) for clamping a second bundle section (3.1) of the conductor bundle (3), wherein, viewed in the longitudinal extension direction of the conductor bundle (3), a loop (7) is formed between the first bundle section (3.1) and the second bundle section (3.2), the loop comprises two loop-back arms (8) and a loop-back (9) connecting the loop-back arms (8), and the crimp plug (2) has a first clamping region (3.1) for clamping the conductor bundle section (3.1) and a second clamping region (3.1) for clamping the conductor bundle section (3), in particular a contact arc-contacting the two loop-back elements (8).

Description

Contact device with crimp plug

technical field

The invention is based on a contact device of the type according to the independent claim.

Background technique

From DE 20 2008 015 165 U1 a contact device is known which comprises a crimp plug and an electrical conductor bundle which is firmly connected to the crimp plug, the conductor bundle having a plurality of wires, wherein the crimp plug has a A connection section for the mechanical and electrical connection of a crimp plug and a conductor bundle, wherein the connection section of the crimp plug has a first clamping region for clamping a first bundle section of a conductor bundle and for clamping Second clamping region of the second bundle section of the conductor bundle.

If a contact device according to DE 20 2008 015 165 U1 is used in a conductor bundle comprising a plurality of carbon filaments each made of graphite fibers and/or carbon nanotubes, then at the transition from the carbon filaments to the crimp plug it is possible An excessively high electrical contact resistance or transition resistance occurs because the contact of the carbon filaments takes place essentially at the circumference of the carbon filaments and the electrical conductivity of the carbon filaments is lower transversely to their longitudinal extension than in the direction of their longitudinal extension Much worse.

Contents of the invention

In contrast, the contacting device according to the invention with the characterizing features of the independent claims has the advantage that the electrical contact resistance or transition at the transition from the carbon wire to the crimp plug is reduced in the following way resistance, i.e., a larger contact surface is provided at the crimp plug. According to the invention, this is achieved in that, viewed in the direction of longitudinal extension of the conductor bundle, a loop is formed between the first bundle section and the second bundle section, the loop comprising two loop arms and a connecting loop arm The loop is looped, and the crimp plug has a contact element arranged between the two loop arms, which contacts the two loop arms of the conductor bundle and is electrically connected to the crimp plug, in particular the connection section.

Advantageous developments and refinements of the contacting device described in the independent claims are achieved by the measures described in the dependent claims.

It is particularly advantageous if the loop of the conductor bundle is wound around the contact element. In this way, the conductor bundle can be brought into contact with the contact element over a large area, so that a large additional contact surface is achieved on the contact element.

It is also advantageous if each loop arm of the loop of the conductor strand is at least partially clamped in one of the two clamping areas of the crimp plug. In this way, a high pull-out resistance of the conductor bundle from the crimp plug is achieved.

It is very advantageous if the connection section of the crimp plug has a first deformation section for forming two clamping areas, wherein the two clamping areas are deformed by the two arms of the first deformation section, in particular Formed by crimping. In this way, the two loop arms of the loop can be clamped and thus fixed in the first deformation section of the crimp plug.

According to a first advantageous embodiment, the contact element can be connected integrally with the first deformation section of the crimp plug and is configured, for example, in the shape of a lug, sword or cylinder, for example from the wall of the crimp plug. Prominent in shape, sword shape or column shape. According to a second advantageous exemplary embodiment, the contact element can be used as a separate insert into the first deformation section of the crimp plug and for example comprises one wall or a plurality of walls arranged in a cross or star shape relative to one another. With both embodiments, the contact area of the crimp plug can be significantly enlarged. The contact surface of the contact element is designed flat, for example.

It is also advantageous if, according to the first exemplary embodiment, the connection section of the crimp plug has a second deformation section for forming the integral contact element, wherein the contact element is formed by the second deformation section, in particular the second deformation Deformation, in particular bending or folding, of the two arms of the segment results. In this way, the contact element can be formed very simply by bending the two arms of the second deformation section, whereby a web-shaped or sword-shaped double wall is produced.

Furthermore, it is also advantageous if, according to the first exemplary embodiment, the connection section of the crimp plug has a third deformation section, wherein the second deformation section forming the contact element is arranged between the first and third deformation section , and wherein the third deformation section is provided for clamping the loopback arc of the loopback. The contact element is formed in a simple manner between the first and the third deformation section. Furthermore, the contact surface between the conductor bundle and the crimp plug is further increased because the loop loop is also contacted by the crimp plug and because the loop arm of the loop is pressed against the contact element by the third deformation section.

It is advantageous if, according to the third exemplary embodiment, the connecting portion is corrugated in cross section such that three corrugations are formed, wherein the two outer corrugations form the clamping region and the central corrugation forms the the contact element.

Furthermore, it is advantageous if a connection section is provided on the crimp plug for detachably connecting the crimp plug to the mating plug. The crimp plug can thus be detachably connected to the mating plug in a known manner.

It is also advantageous if the crimp plug is a metal stamped and bent part. In this way, a particularly cost-effective production of the crimp plug can be achieved.

Description of drawings

Three exemplary embodiments of the invention are shown simplified in the drawing and are explained in more detail in the ensuing description.

FIG. 1 shows a contact device with a crimp plug according to the invention according to a first embodiment;

FIG. 2 shows a contact device with a crimp plug according to the invention according to a second embodiment;

FIG. 3 shows a contact device with a crimp plug according to the invention according to an alternative embodiment of the second embodiment; and

FIG. 4 shows a contact arrangement with a crimp plug according to the invention according to a third exemplary embodiment.

Detailed ways

FIG. 1 shows a contact arrangement according to a first exemplary embodiment with a crimp plug according to the invention.

The electrical contact device 1 comprises a crimp plug 2 according to the invention and an electrical conductor bundle 3 firmly connected to the crimp plug 2, the conductor bundle having a plurality of wires or stranded wires, in particular made of graphite fibers and / or carbon filaments made of carbon nanotubes.

To simplify the illustration, in FIG. 1 the conductor bundle 3 is not yet firmly connected to the crimp plug 2 , but is only loosely embedded in the crimp plug 2 .

The crimp plug 2 is naturally electrically conductive and is, for example, a metallic stamped part.

The crimp plug 2 has a connection section 4 for mechanically and electrically connecting the crimp plug 2 to the conductor bundle 3 . The connection section 4 of the crimp plug 2 has a first clamping region 5 for clamping the first bundle section 3.1 of the conductor bundle 3 and a second clamping region for clamping the second bundle section 3.2 of the conductor bundle 3 6.

According to the provisions of the present invention, viewed along the longitudinal extension direction of the conductor bundle 3, a loop 7 is formed between the first bundle section 3.1 and the second bundle section 3.2, and the loop includes two loop arms 8 and a loop arc 9 connecting the loop arms 8 . Furthermore, it is also provided according to the invention that the crimp plug 2 has a contact element 10 arranged between the two loop arms 8 , which contacts the two loop arms 8 of the conductor bundle 3 and is in contact with the crimp plug 2 , in particular the connection area. Segment 4 is electrically connected. The contact element 10 is therefore designed to be electrically conductive.

The loop 7 of the conductor bundle 3 is wound around the contact element 10 , so that the conductor bundle 3 can contact the contact surface formed on the contact element 10 over a large area. The contact surface of the contact element 10 is formed at the circumference of the contact element 10 .

Each loop arm 8 of the loop 7 of the conductor bundle 3 is at least partially clamped in one of the two clamping areas 5 , 6 of the crimp plug 2 and is thereby secured. The connection section 4 of the crimp plug 2 has, for example, a first deformation section 14 of a strip row to form two clamping areas 6 , 7 , wherein the two clamping areas 6 , 7 pass through the first deformation section 14 Deformation, in particular crimping, of the two arms. In order to fix the conductor bundle 3 on the crimp plug 2 , the first deformation section 14 is thus deformed, for example pressed or crimped.

According to the first exemplary embodiment, the contact element 10 is connected in one piece with the first deformation section 14 of the crimp plug 2 and is configured, for example, in the shape of a lug, sword or cylinder in such a way that, starting from the connection section 4 The wall protrudes in a tab-shaped, sword-shaped or column-shaped manner.

According to a first exemplary embodiment, the connection section 4 of the crimp plug 2 has, for example, a strip-shaped second deformation section 15 to form the contact element 10 , wherein the contact element 10 passes through the second deformation section 15 , in particular The deformation, in particular bending or folding, of the two arms of the second deformation section 15 results.

According to the first exemplary embodiment, the connection section 4 of the crimp plug 2 additionally has a third deformation section 16 , wherein the second deformation section 15 forming the contact element 10 is arranged on the first and third deformation section 14 , 16, and wherein the third deformation section 16 is provided for clamping the loopback arc 9 of the loopback 7 of the conductor bundle 3 .

A connection section 17 for detachably connecting the crimp plug 2 to a mating plug is provided on the crimp plug 2 according to the invention.

FIG. 2 shows a contact arrangement with a crimp plug according to the invention according to a second exemplary embodiment.

The second embodiment of FIG. 2 differs from the first embodiment of FIG. 1 in that the contact element 10 serves as a separate insert into the first deformation section 14 of the crimp plug 2 and comprises a contact surface with The wall 20. According to the second exemplary embodiment in FIG. 2 , the separate insert 10 is a metal flat strip.

According to the second exemplary embodiment, the connection section 4 of the crimp plug 2 therefore has only one deformation section, namely the first deformation section 14 . The second deformation section 15 and the third deformation section 16 according to the first exemplary embodiment are omitted in the second exemplary embodiment.

To simplify the illustration, in FIG. 2 the conductor bundle 3 is not yet firmly connected to the crimp plug 2 , but is only loosely inserted into the crimp plug 2 . In order to fix the conductor bundle 3 on the crimp plug 2 , the first deformation section 14 is deformed, for example pressed or crimped. Here too, the insert 10 is deformed.

The conductor bundle 3 is seated with a first bundle section 3.1 in a first clamping region 3.1 of the connecting section 4 and with a second bundle section 3.2 in a second clamping region 3.2 of the connecting section 4, wherein the first clamping A clamping area 3.1 is formed between the first deformation section 14 and one side of the contact element 10, and wherein a second clamping area 3.2 is formed between the first deformation section 14 and the other, opposite side of the contact element 10 between. Viewed in the direction of longitudinal extension of the conductor bundle 3, a single loop 7 is formed between the first bundle section 3.1 and the second bundle section 3.2, the loop arm 8 of which is clamped and fixed in the first deformation section 14. In the clamping area 5,6.

FIG. 3 shows a contact arrangement with a crimp plug according to the invention according to an alternative embodiment of the second exemplary embodiment of FIG. 2 .

As an alternative to the embodiment in FIG. 2 , the crimp plug according to FIG. 3 has a separate insert 10 forming the contact element 10 , which is formed by a plurality of walls 20 arranged in a cross-shaped or star-shaped manner relative to one another. . When guiding the catheter bundle 3 according to FIG. 3 via the insert 10 , for example two loops 7 with four loop arms 8 are formed. In order to fix the conductor bundle 3 on the crimp plug 2 , the first deformation section 14 is deformed, for example pressed or crimped. The insert 10 is also deformed here.

FIG. 4 shows a contact arrangement with a crimp plug according to the invention according to a third exemplary embodiment.

According to a third exemplary embodiment, the connection section 4 of the crimp plug 2 is corrugated in cross section such that three corrugations 18 are formed, wherein the two outer corrugations 18 form the clamping region 5 . , 6 and the central wave arc 18 form the contact element 10 which is integrally formed at the connection section 4 . The two outer corrugations 18 correspond to the first deformation section 14 according to the first and second exemplary embodiments. The two outer corrugations 18 are thus deformed, for example pressed or crimped, in order to form the two clamping regions 5 , 6 .

Claims (10)

1. Contact device comprising a crimp plug (2) and an electrical conductor bundle (3) which is firmly connected to the crimp plug (2), the conductor bundle having a plurality of wires, in particular a plurality of carbon wires made of graphite fibers and/or carbon nanotubes, wherein the crimp plug (2) has a connection section (4) for mechanically and electrically connecting the crimp plug (2) to the conductor bundle (3), wherein the connection section (4) of the crimp plug (2) has a first clamping region (5) for clamping a first bundle section (3.1) of the conductor bundle (3) and a second clamping region (6) for clamping a second bundle section (3.2) of the conductor bundle (3),

it is characterized in that the method comprises the steps of,

a loop (7) is formed between the first strand section (3.1) and the second strand section (3.2), viewed in the longitudinal extension direction of the conductor strand (3), the loop comprising two loop arms (8) and a loop arc (9) connecting the loop arms (8), and the crimp plug (2) having a contact element (10) arranged between the two loop arms (8), which contacts the two loop arms (8) of the conductor strand (3) and is electrically connected to the crimp plug (2), in particular to the connection section (4).

2. Contact arrangement according to claim 1, characterized in that a loop (7) of the conductor bundle (3) is wound around the contact element (10).

3. The contact arrangement according to any one of the preceding claims, characterized in that each loop-back arm (8) of the loop (7) of the conductor bundle (3) is clamped at least partially in one of the two clamping areas (5, 6) of the crimp plug (2).

4. Contact device according to any one of the preceding claims, characterized in that the connecting section (4) of the crimp plug (2) has a first deformation section (14) for forming two clamping areas (5, 6), wherein the two clamping areas (5, 6) are formed by deformation, in particular crimping, of two arms of the first deformation section (14).

5. The contact device according to claim 4, characterized in that the contact element (10) is integrally connected with the first deformation section (14) of the crimp plug (2) and is in particular constructed as a web, a sword or a column, or that the contact element (10) serves as a separate insert into the first deformation section (14) of the crimp plug (2) and comprises in particular one wall (20) or a plurality of walls (20) arranged crosswise or star-shaped to one another.

6. Contact device according to claim 4 or 5, characterized in that the connecting section (4) of the crimp plug (2) has a second deformation section (15) for forming the contact element (10), wherein the contact element (10) is formed by deformation, in particular bending or folding, of the second deformation section (15), in particular of two arms of the second deformation section (15).

7. Contact device according to claim 6, wherein the connecting section (4) of the crimp plug (2) has a third deformation section (16), wherein the second deformation section (15) forming the contact element (10) is arranged between the first and third deformation sections (14, 16), and wherein the third deformation section (16) is provided for clamping a loop arc (9) of the loop (7).

8. A contact device according to any one of claims 1 to 3, characterized in that the connecting section (4) is configured wave-shaped in cross section such that three wave arcs (18) are formed, wherein two outer wave arcs (18) form the clamping areas (5, 6) and a middle wave arc (18) forms the contact element (10).

9. Contact arrangement according to any of the preceding claims, characterized in that a connection section (17) for detachably connecting the crimp plug (2) with a docking plug is provided at the crimp plug (2).

10. Contact arrangement according to any of the preceding claims, wherein the crimp plug (2) is a metal punch.