Semiconductor module for connecting to a transformer winding, and transformer arrangement

1. A semiconductor module ( 500 ) for connecting to a welding transformer winding ( 132 , 133 ; 408 ; 409 ), comprising:

two contact plates ( 502 );

a disk-shaped semiconductor component ( 501 ) located between the two contact plates ( 502 ), wherein at least one of said contact plates ( 502 ) is indirectly acted upon using a cooling fluid on a side facing away from the semiconductor component ( 501 ), such that the semiconductor component is not in direct contact with the cooling fluid, wherein said at least one contact plate includes a plurality of cooling ducts disposed on the side of the at least one contact plate facing away from the semiconductor component for conducting said cooling fluid.

2. The semiconductor module ( 500 ) as recited in claim 1 ,

wherein at least one contact plate ( 502 ) is pressed against the semiconductor component ( 501 ) using a spring force.

3. The semiconductor module ( 500 ) as recited in claim 1 , further including two connecting elements ( 504 a , 504 b ) which include at least one cavity ( 506 , 507 , 510 ) and each of which is connected to one of the contact plates ( 502 ), wherein the at least one cavity ( 506 , 507 , 510 ) is designed to receive the cooling fluid.

4. The semiconductor module ( 500 ) as recited in claim 1 , wherein the semiconductor component is designed as a disk-shaped rectifier diode ( 501 ).

5. A welding transformer arrangement ( 100 ; 600 ), comprising:

a primary winding ( 132 ; 408 ) and a secondary winding ( 133 ; 409 ) which includes a downstream output rectifier arrangement ( 604 ), wherein the output rectifier assembly ( 604 ) includes at least one semiconductor module said at least one semiconductor module comprising two contact plates ( 502 ); a disk-shaped semiconductor component ( 501 ) located between the two contact plates ( 502 ), wherein at least one of said contact plates ( 502 ) is indirectly acted upon using a cooling fluid on a side facing away from the semiconductor component ( 501 ), such that the semiconductor component is not in direct contact with the cooling fluid, wherein said at least one contact plate includes a plurality of cooling ducts disposed on the side of the at least one contact plate facing away from the semiconductor component for conducting said cooling fluid, wherein the semiconductor component is designed as a disk-shaped rectifier diode ( 501 ) and which is designed as a rectifier assembly ( 500 ).

6. The transformer arrangement ( 100 ; 600 ) as recited in claim 5 , wherein the main direction of flow from the secondary winding ( 133 ; 409 ) to the rectifier assembly ( 500 ) is essentially perpendicular to the main extension plane of the disk-shaped rectifier diode ( 501 ).

7. The transformer arrangement ( 100 ; 600 ) as recited in claim 5 , wherein the secondary winding ( 133 ; 409 ) includes at least one winding element ( 200 ) having fastening means ( 205 ) for fastening the same to a carrier component ( 402 , 403 , 404 ).

8. The transformer arrangement ( 100 ; 600 ) as recited in claim 7 , wherein the at least one winding element ( 200 ) includes at least one cavity ( 206 ) formed in its interior for receiving a cooling fluid.

9. The transformer arrangement ( 100 ; 600 ) as recited in claim 7 , wherein the fastening means ( 205 ) are designed as threaded fastening means, in particular as a threaded hole.

10. The transformer arrangement ( 200 ) as recited in claim 7 , wherein the at least one winding element ( 200 ) is designed in the shape of an “E” having a back ( 202 ) and three legs ( 203 ), and/or it is made of a solid, one-pieced, material element ( 201 ).

11. The transformer arrangement ( 100 ; 600 ) as recited claim 7 , wherein the at least one winding element ( 200 ) is fastened to the output rectifier arrangement ( 604 ) using a threaded connection ( 205 ; 405 ).

12. The transformer arrangement ( 100 ; 600 ) as recited in claim 7 , wherein at least one cavity ( 206 ) of the at least one winding element ( 200 ) and at least one cavity ( 506 , 507 , 510 ) of the at least one rectifier assembly ( 500 ) are interconnected.

13. The transformer arrangement ( 100 ; 600 ) as recited in claim 5 , wherein the primary winding ( 132 ; 408 ) includes at least one self-supporting coil element ( 300 ) in which a strip-type line ( 301 ) is guided in two connected, adjacently situated, oppositely wound windings ( 302 , 303 ).

14. The transformer arrangement ( 100 ; 600 ) as recited in claim 13 , wherein the cross section of the strip-type line ( 301 ) is designed such that the self-supporting coil element ( 300 ) has a low impedance at medium frequencies.

15. The transformer arrangement ( 100 ; 600 ) as recited in claim 5 , wherein the secondary winding ( 133 ; 409 ) includes four winding elements ( 200 ) and/or the output rectifier arrangement ( 604 ) includes two rectifier assemblies ( 500 ) and/or the primary winding ( 132 ; 408 ) includes six self-supporting coil elements ( 300 ).

16. The transformer arrangement ( 100 ; 600 ) as recited in claim 15 , wherein the secondary winding ( 133 ; 409 ) holds—via the winding elements ( 200 )—an iron core ( 401 ) which is enclosed by the primary winding ( 132 ; 408 ), and is screwed onto the output rectifier assembly ( 604 ).