Contact pin with a cooling channel system and electrical plug with such a contact pin
A contact pin for an electrical plug includes a contact element formed of an electrically conductive material and a contact protection formed of an electrically non-conductive material and at least partially enclosing the contact element. A cooling channel system conducting a cooling fluid is formed in the contact protection. The cooling channel system has a cooling fluid supply and a cooling fluid return connected to the cooling fluid supply in a fluid conducting manner. The fluid cooling channel extends to a distal end of the contact element that faces a mating plug matable with the electrical plug.
1 . A contact pin for an electrical plug, comprising:
a contact element formed of an electrically conductive material; and
a contact protection formed of an electrically non-conductive material and at least partially enclosing the contact element, a cooling channel system conducting a cooling fluid is formed in the contact protection, the cooling channel system has a cooling fluid supply and a cooling fluid return connected to the cooling fluid supply in a fluid conducting manner, the fluid cooling channel extends to a distal end of the contact element that faces a mating plug matable with the electrical plug.
2 . The contact pin of claim 1 , wherein the contact element at least partially forms a wall of the cooling channel system.
3 . The contact pin of claim 1 , wherein the contact protection holds or carries the contact element.
4 . The contact pin of claim 1 , wherein a pair of first opposing sides of the contact pin are formed by the contact element and a pair of second opposing sides of the contact pin are formed by the contact protection.
5 . The contact pin of claim 1 , wherein the contact protection has a free end extending over the distal end of the contact element.
6 . The contact pin of claim 1 , wherein the contact protection extends along the contact element between the distal end and a proximal end of the contact element.
7 . The contact pin of claim 1 , wherein at least a portion of the cooling channel system is arranged beyond the distal end of the contact element.
8 . The contact pin of claim 1 , wherein the contact element has a pair of opposing sections between which the cooling channel system is arranged.
9 . The contact pin of claim 1 , further comprising a plurality of ports for the cooling fluid supply and the cooling fluid return at a proximal end of the contact element opposite the distal end.
10 . The contact pin of claim 1 , wherein the cooling channel system extends over an entire length of the contact element.
11 . The contact pin of claim 1 , wherein the cooling channel system has a U-shaped pathway.
12 . The contact pin of claim 1 , wherein a partition wall extends in the cooling channel system.
13 . The contact pin of claim 1 , further comprising a temperature sensor connected to an outer surface of the contact element in a heat-conducting manner.
14 . The contact pin of claim 13 , wherein the temperature sensor is provided in the contact protection.
15 . The contact pin of claim 1 , wherein the contact protection forms a touch protection covering the distal end of the contact element.
16 . An electrical plug, comprising:
a contact pin including a contact element formed of an electrically conductive material and a contact protection formed of an electrically non-conductive material and at least partially enclosing the contact element, a cooling channel system conducting a cooling fluid is formed in the contact protection, the cooling channel system has a cooling fluid supply and a cooling fluid return connected to the cooling fluid supply in a fluid conducting manner, the fluid cooling channel extends to a distal end of the contact element that faces a mating plug matable with the electrical plug; and
a pin strip in which the contact pin is fixed, the pin strip has a finger protection wall forming a touch protection for the contact element with the contact protection.