A split coil structure and transformer

Abstract

The invention discloses a split coil structure, which includes an iron core, a high-voltage winding and a low-voltage winding. The high-voltage winding and the low-voltage winding are sequentially wound on the iron core. The low-voltage winding includes n identical winding units arranged in the axial direction, where n≧3, each The winding units include m split windings, where m≧3, and the same split windings corresponding to each winding unit are respectively connected in parallel. Correspondingly, a transformer including the above-mentioned split coil structure is also disclosed. The use of this split coil structure can solve the problem of severe ampere-turn imbalance between the high and low voltage windings of traditional axially split transformers, reduce the mutual interference of magnetic flux leakage between each split winding, and solve the short-circuit impedance mismatch problem between each split winding, The output voltage variation of each split winding is reduced, and the load loss of the transformer can be reduced at the same time, so as to realize high efficiency and energy saving.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to a split coil structure and a transformer including the split coil structure. Background technique [0002] Such as figure 1 As shown, the traditional split transformer structure is generally composed of the same number of split windings arranged in the axial direction of the core for both the high-voltage winding and the low-voltage winding. For example, the high-voltage winding is split into three along the axial direction, and the low-voltage winding is split into three along the axial direction. . [0003] In current industrial production, due to the split structure, most of the traditional split transformers can only achieve the axial three-split structure, and the traditional axial three-split transformers still have certain defects due to structural reasons, such as the magnetic flux leakage between the split windings Uneven interference leads to poor con...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a split coil structure and a transformer containing the split coil structure to solve the problem of impedance and output voltage between each split winding in order to solve the above-mentioned shortcomings of the traditional axial three-split transformer technology. The matching degree is not easy to control, so as to improve the power supply quality of the transformer

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