Patent ID: 7682206

Claim:
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.