A medium frequency isolation transformer and a solid state transformer

By combining a multi-primary-side single-secondary-side winding structure with an E-type magnetic core and a spiral air duct design, the problems of complex system integration, uneven magnetic circuit, and low heat dissipation efficiency in solid-state transformers are solved, achieving high power density and stability, making it suitable for applications in compact spaces.

CN122417638APending Publication Date: 2026-07-17QINGDAO YUNENGCHUANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO YUNENGCHUANG TECH CO LTD
Filing Date
2026-05-22
Publication Date
2026-07-17

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Abstract

本发明涉及一种中频隔离变压器及固态变压器，包括磁芯、原边绕组和副边绕组，副边绕组套装在磁芯外侧，多个相互独立的原边绕组位于在一个副边绕组外侧，副边绕组与其外侧的原边绕组同轴。本发明的中频隔离变压器采用“多原边、单副边”的多进一出绕组结构，可直接对接固态变压器前级多路功率模块并联输入的拓扑需求，无需额外设置变压器或功率汇集装置；同时绕组布局与E型磁芯精准适配，大幅简化了固态变压器的系统结构，降低了集成难度与制造成本，提升了系统整体可靠性。
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