Electric power conversion device and refrigeration cycle device

Separating the inverter and voltage adjustment boards in refrigeration cycle devices allows for common inverter boards across different power supply types, reducing evaluation time and costs, and enhancing placement flexibility and heat dissipation.

WO2026013826A1PCT designated stage Publication Date: 2026-01-15MITSUBISHI ELECTRIC CORP
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Patent Information

Application Number
PCT/JP2024/025043
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2026-01-15

AI Technical Summary

Technical Problem

Existing refrigeration cycle devices require different inverter boards for each destination, increasing evaluation time and complexity due to varying AC power supply types and specifications, leading to inefficient manufacturing and evaluation processes.

Method used

The inverter board and voltage adjustment board are configured separately, allowing a common inverter board to be used across different destinations, with the voltage adjustment board tailored to each destination, reducing evaluation time and improving board placement flexibility.

Benefits of technology

This configuration reduces evaluation time for inverter boards, enhances placement flexibility, and lowers production costs by enabling common inverter boards across different power supply types, while improving heat dissipation and noise suppression.

✦ Generated by Eureka AI based on patent content.

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Abstract

This electric power conversion device comprises: a converter circuit that rectifies an AC voltage into a DC voltage; a voltage adjustment board that has a voltage adjustment circuit that steps up or steps down the DC voltage; and an inverter board that has an inverter circuit that converts the stepped-up or stepped-down DC voltage into an AC voltage and supplies the AC voltage to a motor. The inverter board and the voltage adjustment board are separately constituted.
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Citation Information

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