| 摘要 |
[Problem] To enable fast and precise welding control for large current, as well as to reduce power consumption. [Solution] A welding transformer is provided with a ring-shaped core (25), a split primary coil (12), and a plurality of positive coils (14) and plurality of negative coils (16) alternately positioned one by one in the gaps (12a) of the primary coil (12). The plurality of positive coils (14) and plurality of negative coils (16) form a secondary coil. The positive coils (14) are electrically connected to a positive conductor (30) via a first connecting plate (44). The negative coils (16) are electrically connected to a negative conductor (32) via a second connecting plate (46). The connection between each positive coil (14) and negative coil (16) is electrically connected to a third connecting plate (48). The positive conductor (30), a rectifier element (18), and a first plate (34) are disposed on one side of a thin insulating layer (31), and the negative conductor (32), a rectifier element (20), and a second plate (36) are disposed on the other side. The first plate (34) and second plate (36) are electrically connected to a third plate (38). Thereby, a small welding transformer with high capacity can be achieved. |
