Fluid-Cooled Magnetics

By designing a non-ring magnetic element that cooperates with a ferromagnetic core, the problem of low heat transfer efficiency at high current density and high frequency in the prior art is solved, and efficient cooling and high power density are achieved.

CN114127871BActive Publication Date: 2025-03-25ENNUEL GMBH
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Patent Information

Application Number
CN201980089871.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-11-29
Filing Date
2019-11-26
Publication Date
2025-03-25
Estimated Expiration
2039-11-26

AI Technical Summary

Technical Problem

Existing magnetic components are difficult to achieve efficient heat transfer at high current density and high frequency, resulting in limited power density.

Method used

A non-ring magnetic element is designed, and a spiral wound coil is used to cooperate with a common ferromagnetic core to form a coolant flow path through the inner diameter part and the turn gap to achieve axial and radial cooling effects.

Benefits of technology

By optimizing the coolant flow path, the heat transfer efficiency is significantly improved, and the ability to handle high current density and high frequency can achieve high power density.

✦ Generated by Eureka AI based on patent content.

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Abstract

A fluid-cooled magnetic component. The coil is formed with small gaps between the turns of the coil. A coolant flows through these gaps, thereby cooling the coil. Multiple coil paths for core cooling and a separate path for winding cooling are provided. One coil path is formed by the annular gap between the inner diameter portion of each coil and the core, and a second cooling path is located between the radial gaps between each coil.
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Citation Information

Patent Citations

  • Transformer device

    US20110205007A1