Contact spring assembly for the self-locking contacting of a wire of an electrical conductor

A contact spring assembly for self-locking contacting of a wire (28), comprising:

• a supporting wall (24) formed from a conductive material;
• and
• a contact spring (10;
• 10′), the contact spring (10;
• 10′) having
• a base leg (20;
• 20′) held stationary in relation to the supporting wall and a clamping leg (18),
• wherein the clamping leg (18), together with the supporting wall (24), forms a plug-in receptacle (26) for the wire (28),
• wherein the plug-in receptacle (26) tapers in an insertion direction,
• wherein the base leg (20;
• 20′) of the contact spring merges into a holding leg (22;
• 22′),
• wherein the holding leg (22;
• 22′) is inserted into a receiving shaft (30;
• 30′) stationary in relation to the supporting wall (24),
• wherein the holding leg (22;
• 22′) has two latching projections (38;
• 38′),
• wherein the two latching projections (38;
• 38′) project in opposite directions transversely to the base leg and are latched with mating contours (34;
• 34′) on walls of the receiving shaft (30;
• 30′),
• wherein the receiving shaft (30;
• 30′) is formed by two parallel grooves,
• wherein the two parallel grooves are open at least at one end,
• wherein the holding leg (22;
• 22′) of the contact spring is of fork-shaped design,
• wherein the mating contours for the latching projections (38;
• 38′) are formed on a web (34;
• 34′),
• wherein the web (34;
• 34′) extends through a slot (36;
• 36′) formed between fork arms of the holding leg (22;
• 22′),
• wherein the web (34;
• 34′) connects a bracket (32) to the supporting wall (24), and
• wherein the bracket (32) forms an outer boundary of the two parallel grooves.