Leakage transformer
AssigneeSumida Corporation
InventorTadayuki Fushimi
Life of this patent
Estimating the term…
Abstract
A leakage transformer capable of preventing occurrence of a short-circuit of a secondary winding and is also capable of restraining a distance between terminals from becoming wide is provided. A leakage transformer (10) has a structure such that a secondary winding (71) is stacked and arranged in a height direction with respect to a primary winding (70), and comprises a plurality of primary side terminals (35b to 35e) to which one end and the other end of the primary winding (70) are respectively bound. Further, the leakage transformer (10) comprises a first terminal block (32a) comprising a first wrapping terminal (36) to which one end of the secondary winding (71) is bound and a second terminal block (32b) comprising second wrapping terminals (38b, 38c) to which the other end of the secondary winding (71) is bound.
Claims9
A leakage transformer, comprising:
- a primary winding constituted by winding a conducting wire;
- a secondary winding arranged to be stacked in a height direction of said primary winding and constituted by winding a conducting wire that is different from the conducting wire of said primary winding;
- a first terminal block comprising a plurality of primary side terminals to which one end and the other end of said primary winding are respectively bound and a first wrapping terminal to which one end of said secondary winding is bound;
- a second terminal block comprising a second wrapping terminal to which the other end of said secondary winding is bound;
- a plurality of two-step coil bobbins each having a first winding frame portion to which said primary winding is wound and a second winding frame portion to which said secondary winding is wound;
- an adjustment coil bobbin arranged between said plurality of two-step coil bobbins and to which an adjustment portion for adjusting a magnetic coupling of said primary winding is wound;
- and
- a core having pillar portions holding said two-step coil bobbins and said adjustment coil bobbin respectively, side walls surrounding outside of the pillar portions, and a recessed portion surrounded by the side walls into which said two-step coil bobbins and said adjustment coil bobbin are fitted,
- wherein said two-step coil bobbins integrates said first terminal block and said second terminal block.
A leakage transformer, comprising:
- a primary winding constituted by winding a conducting wire;
- a secondary winding arranged to be stacked in a height direction of said primary winding and constituted by winding a conducting wire that is different from the conducting wire of said primary winding;
- a first terminal block comprising a plurality of primary side terminals to which one end and the other end of said primary winding are respectively bound and a first wrapping terminal to which one end of said secondary winding is bound;
- a second terminal block comprising a second wrapping terminal to which the other end of said secondary winding is bound;
- wherein a direction of a tip of the first wrapping terminal is oblique in an angle range of approximately 30 to 60 degrees with respect to a direction of tips of the primary side terminals;
- wherein the first wrapping terminal is electrically connected to a ground terminal to be connected to a ground,
- wherein the ground terminal is arranged adjacent to the first wrapping terminal;
- and
- wherein a root of the first wrapping terminal on said first terminal block is located on a more central side in a short side direction of a case core than roots of the primary side terminals and the ground terminal on said first terminal block.
Dependencies are inferred from the claim text.