DE3112483A1 - ELECTRICAL CONNECTING ELEMENT - Google Patents

Description

Electrical connector

The invention relates to an electrical connecting element consisting of a tubular plug element and a matching tubular to be brought into engagement therewith by relative axial movement Bushing element.

Such electrical connection elements are normally grounded and held together by a third element. An electrical connection is made between the mated elements, usually by means of a spring element which is attached to the outer surface of the plug element so that it is inside with engages the socket member. The spring element then comes with the inner surface of the socket element engaged when the connector is made. The spring element is either soldered to the plug element or riveted, or the ends of the spring element are connected to one another by spot welding to form a continuous To form band, which is then stretched and slipped over the connector element in the manner of a watch strap will.

The invention is based on the object To create electrical connecting element of the type mentioned, in which the repair of the contact spring or their replacement is made easier.

The object is achieved according to the invention in that the plug element and the socket element when engaging with each other form a circumferential recess between them, and that in the recess an electrically conductive contact spring is arranged, which consists of a band, the ends with Eleme.nten releasably to be brought into engagement with one another

and which includes a plurality of contact elements extending radially outwardly from the band and resiliently come into engagement with the interior of the female part.

The contact elements preferably consist of a number of parallel ones in the circumferential direction of the belt arranged, radially outwardly curved and longitudinally extending fingers.

It is advantageous here if the elements of the belt that are to be detachably engaged with one another are made an axially extending recess and consist of a hook that contains the recess The end spreads so that a tip part of the hook is held in the recess.

The contact spring is preferably located in the recess running in the circumferential direction between the plug part and the socket member loosely fitted to separate the interengaging elements to facilitate repair or replacement of the spring.

The invention is explained in more detail below with the aid of an exemplary embodiment shown in the drawing explained. In the drawing:

Fig. 1 is a perspective view of a plug element of the invention electrical connector;

Fig. 2 is a perspective view of a

electrically conductive contact spring for the in Fig. 1 partially shown electrical Fastener and

Fig. 3 is a perspective view of the

Connector element with the contact spring mounted on it.

The electrical connection device shown in the drawings includes a tubular plug element 1, which is connected to a complementary bushing element (not shown) by relative axial movement, e.g. rectilinear sliding movement can be brought into engagement between the elements. At one with reduced Diameter provided part 3 of the tubular element 1 pairs of aligned lugs 5 are provided with Grooves in the socket member come into engagement. If the engagement with the socket element has taken place, this lies on an end flange 7 of an externally threaded part 9 of the plug element.

The male and female elements of the connecting device are connected to one another by means of a third element and are normally earthed during operation. The socket element contains an externally threaded part, by means of which in connection with part 9 the Connector can be inserted into a line for electrical purposes.

After the two elements of the connecting device have been brought into engagement, there is between them an annular recess in which an electrically conductive contact spring 11 is arranged. This recess is by a groove 13 running in the circumferential direction formed in the reduced diameter portion of the element 1.

The electrically conductive contact spring 11 consists of a band 15, the ends of which are opposite one another are provided with elements 17 and 19 to be releasably engaged with one another. The element 17 is through a formed in the axial direction, pressed into the band 15 recess, while the element 19 consists of a hook consists of one foot part 21 and one in the recess 17

held tip part 23 contains. The contact spring 11 is also on its periphery on one side with a row of contact elements in the form of parallel fingers 25, which extend from the band 15 substantially radially outward and axially in the direction of the engagement movement of the bushing and Extend plug part. The fingers 25 are curved radially outward, and when the socket element with the plug element is connected, fingers 25 resiliently engage the inner surface of the male member. Of the The hook 19 forms one of the fingers 25.

The contact spring 11 is arranged in the groove 13 so that the fingers 25 in the direction of the flange 7 ways. Using a special tool, the hook 19 is spread over the band 15 so that the tip part of the Hook with the recess 17 comes into engagement. The spring 11 is loosely seated in the groove 13 to the To facilitate use of the tool when attaching and removing the spring. A tight fit for the spring is there not required, but it must have electrical conductivity Ensure between the plug and socket part. The plug element provided with the contact spring can now be brought into engagement with the socket element, wherein the grooves of the socket element come into engagement with the noses 5 of the plug element. A third element known form is then attached to the socket and plug element in order to hold them together.

After removing the third element and separating the plug part from the socket part, the. feather 11 and can be done using the special tool for Removed from the groove 13 for repair purposes and, if necessary, replaced by a new spring.

Numerous modifications are possible within the scope of the invention. So the fingers 25 as well as the elements 17 and 19 differ from the shape shown-

de form. It can also run in the circumferential direction Recess between the socket and plug part are formed in a different way than by the groove 13, and finally, the rectilinear sliding movement between the female and male parts does not necessarily require the Use of noses and grooves.

Claims (13)

EIKENBERG & BRÜMMERSTEDT PATENT LAWYERS IN HANOVER Thorn Electrical Components Limited 100/564 Claims M.j Electrical connection element, consisting of a tubular plug element and a matching tubular socket element to be brought into engagement therewith by relative axial movement, characterized in that the plug element (1) and the socket element form a circumferential recess (13) between them when they engage with one another, and that an electrically conductive contact spring (11) is arranged in the recess, which consists of a band (15), the ends of which are connected by means of elements (17, 19) to be detachably engaged with one another, and which contains a plurality of contact elements (25) which extend radially outwardly from the band (15) and resiliently engage the interior of the socket member. 2. Electrical connecting element according to claim 1, characterized in that the contact elements (25) extend from one side of the band (15) radially outward and axially in the direction of the engagement movement of the plug element (1) and the socket element. 3. Electrical connecting element according to claim 2, characterized in that the contact elements (25) consist of a number of parallel fingers arranged in the circumferential direction of the band (15) and extending in the axial direction thereof. 4. Electrical connecting element according to claim 3, characterized in that the fingers are each curved radially outward. 5. Electrical connection element according to one of the preceding claims, characterized in that the releasably to be brought into engagement with each other elements (17, 19) of the band (15) from an axially extending recess (17) at one end and from a hook ( 19) exist at the other end of the band which spreads the end containing the recess (17) so that a tip part (23) of the hook (19) is held in the recess (17). 6. Electrical connecting element according to one of the preceding claims, characterized in that the recess (13) between the plug element (1) and the socket element consists of a groove in the plug element. 7. Electrical connecting element according to claim 6, characterized in that the contact spring (11) is mounted in the groove (13). 8. Electrical connection element according to one of the preceding claims, characterized in that the axial engagement between the plug part (1) and the socket part takes place by a linear sliding movement and is controlled by lugs (5) on one of the elements and by grooves on the other element . 9. Electrically conductive contact spring for an electrical connecting element, which consists of a tubular Plug element and a matching tubular socket element which is to be brought into engagement therewith by relative axial movement, the plug element and the socket element when they engage with one another form a circumferential recess for receiving the contact spring, characterized in that the contact spring (11 ) consists of a band (15), the ends of which are provided with elements (17, 19) to be releasably engaged with one another, and which contains a plurality of contact elements (25) which extend radially outwardly from the band (15) and are resilient come into engagement with the interior of the female part. 10. Contact spring according to claim 9, characterized in that the contact elements (25) from one side of the band (15) extend radially outward and axially in the direction of the engagement movement of the plug element (1) and the socket element. 11. Contact spring according to claim 10, characterized in that the contact elements (25) consist of a number of parallel fingers arranged in the circumferential direction of the band (15) and extending in the axial direction thereof. 12. Contact spring according to claim 11, characterized in that the fingers are each curved radially outward. 13. Contact spring according to one of claims 9-12, characterized in that the releasably to be brought into engagement with each other elements (17, 19) of the band (15) from an axially extending recess (17) and from a hook (19) exist, which spreads the end containing the recess (17) so that a tip part (23) of the hook (19) is held in the recess (17).