Split coil structure and transformer

A technology of transformers and coils, applied in the field of transformers, can solve problems such as difficult control of output voltage matching, achieve the effects of solving the problem of short-circuit impedance mismatch, simplifying the design structure, and reducing load loss
CN112117102AActive Publication Date: 2020-12-22TBEA INTELLIGENT ELECTRIC CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TBEA INTELLIGENT ELECTRIC CO LTD
Publication Date
2020-12-22

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Abstract

The present invention discloses a split coil structure. The split coil structure comprises an iron core, a high-voltage winding and a low-voltage winding, the high-voltage winding and the low-voltagewinding are sequentially wound on the iron core, the low-voltage winding comprises n identical winding units arranged in the axial direction, n is larger than or equal to 3, each winding unit comprises m split windings, and m is larger than or equal to 3. The corresponding split windings in each winding unit are respectively connected in parallel. Correspondingly, the invention further discloses atransformer comprising the split coil structure. By adopting the split coil structure, the problem that ampere-turns between high-voltage windings and low-voltage windings of a traditional axial split transformer are seriously unbalanced can be solved, mutual interference of magnetic flux leakage between the split windings can be reduced, the problem that short-circuit impedance between the splitwindings is not matched is solved, and voltage changes output by the split windings are reduced; meanwhile, load loss of the transformer can be reduced, and high efficiency and energy conservation are achieved.
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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...

Claims

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