Electrical modules and power converters
The electrical module design with aligned pipes and metal relay tubes addresses magnetic coupling and inductance fluctuations by generating eddy currents to stabilize reactor performance.
JP2026096022APending Publication Date: 2026-06-12DENSO CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DENSO CORP
- Filing Date
- 2024-12-02
- Publication Date
- 2026-06-12
AI Technical Summary
⚠Technical Problem
The existing electrical module configuration, where two reactors are arranged side by side with a cooler of shorter length, results in magnetic coupling and fluctuations in inductance due to alternating magnetic flux between the reactors.
⚗Method used
The configuration includes a cooler with aligned supply and discharge pipes and intermediate pipes creating gaps for individual reactors, with a metal relay tube that generates eddy currents to cancel out alternating magnetic flux, suppressing magnetic coupling and inductance fluctuations.
🎯Benefits of technology
This configuration effectively suppresses fluctuations in reactor inductance by canceling out alternating magnetic flux, ensuring stable reactor performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026096022000001_ABST
Abstract
The present invention provides an electrical module and a power converter in which fluctuations in the inductance of the reactor are suppressed. [Solution] Phase A reactor 521 and Phase B reactor 522 are housed in a metal cooler 700. The cooler has a supply pipe 710 and a discharge pipe 720 extending in the Y direction, and at least three intermediate pipes 730 extending in the X direction, connecting the supply pipe and the discharge pipe, and spaced apart in the Y direction. Multiple gaps are formed, partitioned by the supply pipe, the discharge pipe, and two intermediate pipes adjacent to each other in the Y direction. The Phase A reactor and Phase B reactor are individually provided in the multiple gaps. The Phase A reactor and Phase B reactor have coils wound circumferentially around the X direction.
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