Connector system, use and method

1. A connector system with a connector and a complementary connector, wherein the connector comprises:

a housing element with at least one locking device and at least one electrical contact element, wherein the at least one electrical contact element is arranged in the area of a front end of the housing element,

an electrical cable, wherein a cable end area of the electrical cable is arranged in the area of a rear end of the housing element, and at least one conductor of the electrical cable is connected with the electrical contact element, and the cable extends toward the other cable end area through the rear end of the housing element out of the housing element, and

a closing element arranged on the housing element, which closing element surrounds both at least the rear end of the housing element and an area of the electrical cable arranged outside the housing element, and is closely connected with the housing element and the electrical cable such that at the rear end, the interior of the housing element is sealed from the surrounding in a substantially fully moisture-tight manner, the complementary connector further comprises a complementary housing element with at least one complementary locking device and at least one complementary electrical contact element, wherein the at least one complementary electrical contact element is arranged in the area of a front end of the complementary housing element, comprises an electrical cable, wherein a cable end area of the electrical cable is arranged in the area of a rear end of the complementary housing element, and at least one conductor of the electrical cable is connected with the complementary electrical contact element, and the cable extends toward the other cable end area through the rear end of the complementary housing element out of the complementary housing element, and

a closing element arranged on the complementary housing element, which closing element surrounds both at least the rear end of the complementary housing element and an area of the electrical cable arranged outside the complementary housing element, and is closely connected with the complementary housing element and the electrical cable such that at the rear end, the interior of the complementary housing element is sealed from the surrounding in a substantially fully moisture-tight manner,

wherein

the housing element further comprises receiving device at a front end, which is designed to receive an insertion device of the complementary connector arranged at the front end of the complementary connector at least in some area(s) along an insertion direction, and wherein

the locking device and the complementary locking device are designed

such that the at least one complementary locking device is at least in some area(s) insertable into the locking device along the insertion direction and can be locked with the locking device such that the locking device and the complementary locking device can be unlocked by actuation of the locking device and of the complementary locking device substantially exclusively by means of a tool, and

to connect the insertion device of the complementary connector with the receiving device of the connector such that the electrical contact element is sealed from the surrounding in a substantially moisture-tight manner at the front end of the connector and the complementary electrical contact element is sealed from the surrounding in a substantially moisture-tight manner at the front end of the complementary connector.

2. The connector system according to claim 1 , wherein

the locking device and the complementary locking device are arranged and designed such that the locking device and the complementary locking device are displaceable relative to each other along an unlocking direction for unlocking, wherein the unlocking direction is substantially perpendicular to the insertion direction, and wherein

when the connector and the complementary connector are locked with each other, the locking device surrounds the complementary locking device such that an unlocking opening is formed, through which a tool for unlocking is insertable into the locking device and the complementary locking device along a tool insertion direction (WER), and the locking device and the complementary locking device are displaceable relative to each other along the unlocking direction by means of the tool.

3. The connector system according to claim 2 , wherein the tool insertion direction is substantially perpendicular to the insertion direction and substantially perpendicular to the unlocking direction.

4. The connector system according to claim 1 , wherein when the connector and the complementary connector are locked with each other, the locking device surrounds the complementary locking device such that the locking device is closed along the unlocking direction.

5. The connector system according to claim 2 , wherein the tool insertion direction is substantially perpendicular to the insertion direction and substantially parallel to the unlocking direction.

6. The connector system according to claim 1 , wherein the closing element arranged on the housing element is more flexible than the housing element and wherein the closing element arranged on the complementary housing element is more flexible than the complementary housing element.

7. The connector system according to claim 1 , wherein the closing element is made of a material that is shrinkable.

8. The connector system according to claim 7 , wherein the closing element is made of a material that can be shrunk more strongly than the material of the housing element and, wherein the closing element is made of a material that can be shrunk more strongly than the material of the cable end area of the cable.

9. The connector system according to claim 1 , wherein the closing element is applied to the housing element and the area of the electrical cable arranged outside the housing element in a substantially liquid form, and the close connection is established by cooling the closing element.

10. The connector system according to claim 9 , wherein the closing element, the housing element and the electrical cable are formed such that the substantially liquid closing element melts together with the housing element at least partially and that the substantially liquid closing element is connected with the electrical cable substantially exclusively in a mechanical manner.

11. The connector system according to claim 1 , wherein the electrical cable comprises a sheath of a polymer material,

wherein the polymer material of the sheath of the cable is crosslinked at least in an end area of the cable by beta radiation.

12. The connector system according to claim 1 , wherein

the complementary electrical contact element is at least in some area(s) arranged in the insertion device of the complementary connector,

the electrical contact element of the connector is at least in some area(s) arranged in the receiving device of the connector, and wherein

when the connector and the complementary connector are locked with each other,

the contact element contacts the complementary contact element within the insertion device and within the receiving device, and

a sealing element, in particular an 0 ring, is arranged between the insertion device and the receiving device such that the electrical contact element and the complementary electrical contact element are sealed from the surrounding in a substantially moisture-tight manner.

13. A use of a connector and of a complementary connector for provision in a connector system according to claim 1 .

14. A use of a connector system, according to claim 1 , for connecting a solar module with a power pick-up.