Electrical pressure contact
Assigneeera-contact GmbH
InventorAndreas Kainz
Life of this patent
Estimating the term…
Abstract
An electrical pressure contact device includes a sleeve with a first end and a second end. A contact head is slideably mounted in the sleeve and has a first end protruding from the sleeve and a second end located in the sleeve. A connecting piece has an inner portion connected to an inner wall of the sleeve and an outer portion protruding from the second end of the sleeve. An axially extending bore in a first piece located in the sleeve receives an elongated member of a second piece. A band has a plurality of inwardly arching lamellae and is located in the bore. The elongated member is inserted in the band so that the lamellae rub against the elongated member. A biasing element in the sleeve surrounds the elongated member and urges the contact head away from the sleeve.
Claims14
An electrical pressure contact, comprising:
- a housing sleeve with a contact facing end and an away from the contact facing end;
- a conductive contact head, which is mounted in the housing sleeve to be axially movable and which protrudes from the contact facing end of the housing sleeve;
- a biasing element located in the housing sleeve for biasing the contact head;
- and
- a conductive connecting piece that is located at the away from the contact facing end of the housing sleeve for the attachment of an electrical lead wherein
- the connecting piece has a contact facing axial bore within the housing sleeve, the contact head being arranged to be axially moveable in the axial bore for the production of the electrical contact between the contact head and the connecting piece;
- a conductive contact element sits within the bore and is coaxial thereto, which contact element rubbingly lies against an outer surface of the axially movable away from the contact facing portion of the contact head in the bore and produces the electrical contact between the contact head and the connecting piece, and the contact element is a metallic, tube-shaped element in which the away from the contact facing portion of the contact head is always at least partially received and which has several concave inwardly arching contact lamellae that lie adjacent to one another in the peripheral direction and that run in the longitudinal direction, which are elastically biased on the outer surface of the portion of the contact head that is received in the contact element;
- and
- wherein the connecting piece has an away from the contact facing, larger diameter portion that is fixed to the interior wall of the housing sleeve, and the connecting piece having a contact facing, smaller diameter portion, wherein the contact head has a contact facing, larger diameter portion and an away from the contact facing portion with a smaller diameter, and wherein the biasing element is a coil spring which surrounds the away from the contact facing portion of the contact head and the contact facing portion of the connecting piece.
An electrical pressure contact device comprising:
- a sleeve with a first end and a second end;
- a contact head element slideably mounted in the sleeve, said contact head having a first end protruding from the first end of the sleeve and a second end located in the sleeve;
- a connecting piece element having an inner portion connected to an inner wall of the sleeve and an outer portion protruding from the second end of the sleeve;
- one of the elements having an axially extending bore therein, another of the elements having an elongated member, said bore receiving the elongated member;
- a band having a plurality of inwardly arching lamellae, said band being located in the bore, said elongated member being inserted in the band so that the lamellae rub against the elongated member;
- and
- a biasing element in the sleeve and surrounding the bore and the elongated member for urging the contact head away from the sleeve.
Dependencies are inferred from the claim text.