DE102018105772B3 - Contact arrangement comprising a metal housing and a contact strip - Google Patents

Abstract

The invention relates to a contact arrangement comprising a metal housing having a groove and a contact band extending along a longitudinal direction of the contact arrangement, having a plurality of contact elements and a plurality of fastening elements for establishing an electrically conductive connection between the metal housing and a plug connector received in the metal housing, wherein the fastener elements have at least one attachment arm protruding therefrom, which fixes the contact assembly to a groove of the metal housing, the contact elements and the attachment elements being respectively formed on a side edge of the contact strip in the transverse direction orthogonal to the longitudinal direction, and wherein the respective attachment arm of a Fastener is bent at an angle between 30 ° to 60 ° in a vertical direction which is orthogonal to the longitudinal direction and the transverse direction.

Description

The invention relates to a contact arrangement comprising a metal housing having a groove and a contact strip having a plurality of contact elements and a plurality of fastening elements for producing an electrically conductive connection between a metal housing and a connector housed in the metal housing.

In the technical field of electrical contacting of electrical and / or electronic devices, in particular for the connection of devices that require electrical shielding, there are different solutions for shield transfer of the connector pairs involved, in particular to the metal housing.

Some known connectors are application-specific developments, which are difficult or impossible to transfer to other applications due to the high demands on the electrical shielding and the seal against media, especially against moisture.

The WO 2006/013027 A discloses a high current plug contact which has a shield.

Also the EP 1 965 467 B1 discloses a connector with at least one front-side insertion opening, at which a cable shield is transferred to the corresponding mating connector.

In the US Pat. No. 6,435,922 B2 is a cylindrical coaxial connector with an intermediate band of contact springs, which are arranged in a round housing disclosed.

Furthermore, the shows DE 27 33 510 B2 a shield of an insertable by nesting a Seckteils and a female part electrical plug connection against interference frequencies.

The connectors mentioned in the prior art have round or oval connectors and thus constructions in which the connectors have corresponding plug-in sections in a round or oval shape. At these round or oval plug-in sections screen transfer elements can be attached non-positively. In particular, when screen transfer elements are designed as spring elements, they can be mounted on the round plug-in sections, so that the spring elements or the screen transfer element rests on the periphery of the plug-in portion non-positively.

In some connectors, however, there is the problem that a non-dimensionally stable screen transfer element on the linear, speak straight sections of a metal housing is not easy to position. In this case, problems occur with the screen transfer element in the region of the linear sections, since this sags, in particular in the lower sections. In any case, there are problems with the non-positive concern of the screen transfer element on the connector housing or on the connector. The longer the linear plug-in sections, the stronger the aforementioned effect occurs. In the worst case, the screen transfer element z. B. at the bottom of a rectangular connector so far sag that this is no longer in contact with the outside of the plug-in section and connecting the connector pairs in this situation and situation is impossible or when plugging the sagging screen transfer element is damaged.

Basically, there is a need for the shield to be efficiently connected to the housing and for the electrical contacting to work.

The invention is therefore based on the object to overcome the aforementioned disadvantages and to provide a simple to produce universally usable fastening solution.

This object is achieved with the features of claim 1.

A basic idea of the invention is the design of a combination of a groove with corresponding contact band-side fastening means.

The invention therefore proposes a contact arrangement comprising a metal housing with a groove and a contact band with a plurality of contact elements and a plurality of fastening elements for producing an electrically conductive connection between a metal housing and a connector housed in the metal housing, wherein the fastening elements have at least one attachment arm protruding therefrom which fixes the contact arrangement on a groove of the metal housing.

In a preferred embodiment it is provided that the attachment arm is a spring arm or solid-shaped, preferably not elastically deformable support arm. As a result, a particularly good connection for the application can be created.

It is also advantageous if the contact strip along a longitudinal direction of the Contact arrangement extends and is adaptable to a corresponding length of the groove.

Also advantageous is an embodiment in which the contact elements and the fastening elements are each formed on a side edge of the contact strip in the transverse direction which is orthogonal to the longitudinal direction.

Preferably, the contact arrangement is designed such that the respective fastening arm of a fastening element is bent at an angle between 30 ° to 60 °, preferably 40 ° to 50 °, more preferably 45 °, in a vertical direction which is orthogonal to the longitudinal direction and the transverse direction is.

In one embodiment of the invention, it is advantageously provided that two mutually opposite fastening arms are formed on the respective fastening element. As a result, a support on opposite walls of the groove is particularly effective.

Furthermore, it is favorable that the respective fastening arm is arched on its circumferential edge in at least one edge section, so that at least one, preferably two attachment tips are thereby formed on the edge. As a result, a cutting on opposite walls of the groove is particularly effective.

In a further advantageous variant, the invention provides that the respective contact element is designed as a vertically resilient contact arm which has a contact point or a contact tip for contacting the plug connector.

According to the invention, it is further advantageous that the groove of the metal housing extends parallel to the longitudinal direction and the metal housing is preferably made of aluminum.

The contact arrangement according to the invention is embodied in a variant that the contact band of the contact arrangement for vertical insertion into a groove in the longitudinal direction has serially arranged contact elements and fastening elements, wherein between two fastening elements at least one contact element is formed.

It is also advantageous if the fastening arms of a fastening element extend transversely on the contact band at both opposite side edges and bear with their fastening tips under pretension against the lateral inner walls of the groove or are scratched.

According to the invention is further seen with advantage that a contact element is formed on a side edge of the contact strip in the transverse direction, wherein the resilient contact arm is formed into an approximately three-quarter circle and the opening of the three-quarter circle is positioned within the groove.

In an alternative embodiment of the present contact arrangement according to the invention, it is further provided that the groove is formed transversely to the vertical direction in the metal housing and the contact arrangement comprises pairs each consisting of a contact element and a fastening element. The fastening elements are each formed on the side of the groove and the contact elements on the opposite side in the transverse direction.

In a favorable application example of contact arrangements according to the invention, the fastening arms of a fastening element extending in the transverse direction at the two opposite side edges each extend in the longitudinal direction. In this case, the fastening element is located with its underside on a first side wall of the groove and the fastening arms are with their mounting tips under pretension on the second side wall of the groove opposite the first side wall.

• 1a bis 1c Ansichten eines ersten Ausführungsbeispiels einer Kontaktanordnung;
• 2a bis 2b Ansichten eines zweiten Ausführungsbeispiels einer Kontaktanordnung.

Other advantageous developments of the invention are characterized in the subclaims or are shown in more detail below together with the description of the preferred embodiment of the invention with reference to FIGS. Show it:

• 1a to 1c Views of a first embodiment of a contact arrangement;
• 2a to 2 B Views of a second embodiment of a contact arrangement.

The 1a shows a first embodiment of a contact arrangement 1 comprising a contact band 11 with a plurality of contact elements 2 and a plurality of fasteners 4 for producing an electrically conductive connection between a metal housing 5 , this in 1b is shown, and one in the metal housing 5 recorded connector, which is not shown in detail in the figures.

The fasteners 4 show in 1b two protruding mounting arms 7 on which the contact arrangement 1 at a groove 3 of the metal housing 5 fix.

The contact elements 2 and the fasteners 4 are each on one side edge of the contact band 11 in the transverse direction Q orthogonal to the longitudinal direction L runs, trained. The attachment arms 7 according to the execution 1b are designed as spring arms. The respective attachment arm 7 a fastener 4 is at an angle of about 50 ° in a vertical direction V orthogonal to the longitudinal direction L and the transverse direction Q runs, bent. 1c also shows that the respective mounting arm 7 at its circumferential edge in a lateral edge portion K arched or curved so that thereby at the edge two attachment tips 8th are formed.

The respective contact element 2 is as a vertical direction V resilient contact arm 9 formed, the one contact point or a contact tip 10 for contacting the connector.

In 1a has the contact band 11 the contact arrangement 1 longitudinal L serially arranged five contact elements 2 and two fasteners 4 on, between two, in both longitudinal directions L external, contact elements 2 the two fasteners 4 are formed. Between the two fasteners 4 are the other three contact elements 2 educated.

In 1b is in each case a contact element 2 , on each side edge of the contact band 11 is formed in the transverse direction shown. Here is the resilient contact arm 9 bent to a three-quarter circle (cylindrical) and the opening of the three-quarter circle inside the groove 3 positioned.

The attachment arms 7 a fastener 4 extend to the contact band 11 on both opposite side edges in the transverse direction Q , Furthermore, the attachment arms are 7 with their attachment tips 8th under pretension on the lateral inner walls of the groove 3 on or are scratched.

2a shows a second embodiment of a contact arrangement 1 where the groove 3 transverse to the vertical direction V in the metal case 5 is trained.

2 B shows that the contact arrangement 1 four pairs each consisting of a contact element 2 and a fastener 4 having. Here are, as in 2a shown the fasteners 4 each on the side of the groove 3 and the contact elements 2 on the in the transverse direction Q formed opposite side.

The attachment arms 7 , one in the transverse direction Q extending fastener 4 , extend at the two opposite side edges respectively opposite in the longitudinal direction L ,

This is the fastener 4 , as in 2a shown with its bottom on a first sidewall of the groove 3 on and the attachment arms 7 lie with their attachment tips 8th under bias on the first side wall opposite the second side wall of the groove 3 on or are scratched.

LIST OF REFERENCE NUMBERS

1

Contact configuration

2

contact element

3

groove

4

fastener

5

metal housing

7

Mounting Arm

8th

fixing tip

9

contact

10

Contact point / contact point

11

Contact band

K

edge portion

L

longitudinal direction

Q

transversely

V

vertical direction

Claims (11)

A contact assembly (1) comprising a metal shell (5) having a groove (3) and a contact band (11) extending along a longitudinal direction (L) of the contact assembly (1), having a plurality of contact members (2) and a plurality Fastening elements (4) for producing an electrically conductive connection between the metal housing (5) and a plug connector received in the metal housing (5), wherein the fastening elements (4) have at least one fastening arm (7) protruding therefrom, which supports the contact arrangement (1) on a Nut (3) of the metal housing (5) fixed, wherein the contact elements (2) and the fastening elements (4) respectively at a side edge of the contact strip (11) in the transverse direction (Q), which is orthogonal to the longitudinal direction (L) formed and wherein the respective attachment arm (7) of a fastener (4) extends at an angle between 30 ° to 60 ° in a vertical direction (V) orthogonal to the longitudinal direction (L) and Transverse direction (Q) runs, is bent. Contact arrangement (1) according to Claim 1 , characterized in that the fastening arm (7) is a spring arm or solid-shaped, non-elastically deformable support arm. Contact arrangement (1) according to one of the preceding claims, characterized in that two mutually opposite fastening arms (7) are formed on the respective fastening element (4). Contact arrangement (1) according to one of the preceding claims, characterized in that the respective fastening arm (7) is curved at its peripheral edge in at least one edge portion (K), so that thereby at least one fastening tip (8) is formed on the edge. Contact arrangement (1) according to one of the preceding claims, characterized in that the respective contact element (2) as a vertically in the vertical direction (V) resilient contact arm (9) is formed, which has a contact point (10) or a contact tip for contacting the connector. Contact arrangement (1) according to one of the preceding claims, characterized in that the groove (3) of the metal housing (5) extends parallel to the longitudinal direction (L). Contact arrangement (1) according to one of the preceding claims, characterized in that the contact strip (11) of the contact arrangement (1) for vertical insertion into a groove (3) in the longitudinal direction (L) serially arranged contact elements (2) and fastening elements (4) , wherein between two fastening elements (4) at least one contact element (2) is formed. Contact arrangement (1) according to Claim 6 , characterized in that the fastening arms (7) of a fastening element (4) on the contact strip (11) extend at both opposite lateral edges in the transverse direction (Q) and with their fastening points (8) under pretension on the lateral inner walls of the groove (3). lying or scratched. Contact arrangement (1) according to Claim 6 or 7 , characterized in that a contact element (2) is formed on a side edge of the contact strip (11) in the transverse direction (Q), wherein the resilient contact arm (9) is formed into a three-quarter circle and the opening of the three-quarter circle within the groove (3 ) is positioned. Contact arrangement (1) according to one of Claims 1 to 5 , characterized in that the groove (3) transversely to the vertical direction (V) in the metal housing (5) is formed and the contact arrangement (1) pairs consisting of a respective contact element (2) and a fastening element (4), wherein the fastening elements ( 4) are each formed on the side of the groove (3) and the contact elements (2) on the opposite side in the transverse direction (Q). Contact arrangement (1) according to Claim 9 combined with Claim 3 , characterized in that the fastening arms (7) of a transversely extending (Q) fastening element (4) at the two opposite side edges each opposite in the longitudinal direction (L), wherein the fastening element (4) with its underside on a first side wall the groove (3) rests and the fastening arms (7) with their attachment tips (8) biased against the first side wall opposite the second side wall of the groove (3).

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