Energy conversion apparatus, and vehicle

By using a novel energy conversion device architecture and soft-switching technology, the problems of excessive size and cost in existing technologies have been solved, achieving more efficient energy conversion, reducing switching losses and increasing power density.

WO2026085990A9PCT designated stage Publication Date: 2026-07-23SHINRY TECH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHINRY TECH
Filing Date
2024-12-12
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing energy conversion devices employ a two-stage architecture of PFC modules and DC/DC modules, resulting in increased size and cost, and lower power density.

Method used

A novel architecture is adopted, consisting of a primary-side bridge arm module, a filtering module, a resonant module, a secondary-side bridge arm module, and a control module. The control module determines the phase shift angle of the target bridge arm relative to the reference bridge arm based on the required gain and the sampled current and voltage, thereby achieving soft switching action, reducing the number of bridge arms, and using the resonant module to reduce switching losses.

Benefits of technology

It reduces the size and cost of energy conversion devices, improves conversion efficiency, reduces switching losses, and increases power density.

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Abstract

Provided in the embodiments of the present application are an energy conversion apparatus, and a vehicle. The energy conversion apparatus comprises a primary-side bridge arm module, a filter module, a resonant module, a secondary-side bridge arm module and a control module, wherein the primary-side bridge arm module comprises a first bridge arm, a second bridge arm and a third bridge arm; the secondary-side bridge arm module comprises a fourth bridge arm and a fifth bridge arm; the frequency of a drive signal of the second bridge arm, the frequency of a drive signal of the third bridge arm, the frequency of a drive signal of the fourth bridge arm and the frequency of a drive signal of the fifth bridge arm are all greater than the frequency of a drive signal of the first bridge arm; and on the basis of a required gain of the energy conversion apparatus, a first sampled current, a second sampled current, a first sampled voltage and a second sampled voltage, the control module determines a phase shift angle of a target bridge arm relative to a reference bridge arm, so as to achieve soft switching actions of switches in the primary-side bridge arm module and the secondary-side bridge arm module, and realize energy control. In the embodiments of the present application, the volume and cost of the energy conversion apparatus can be reduced.
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