Switching cell with connecting devices

The switching cell design addresses stray inductance and tolerance issues by using two connecting devices with insulating means to compensate magnetic fields, ensuring secure and efficient power transfer.

WO2026120108A1 Publication Date: 2026-06-11VALEO ELECTRIFICATION
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Patent Information

Application Number
PCT/EP2025/085587
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-05
Filing Date
2025-12-04
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing switching cells in motor vehicles experience issues with stray inductance and tolerance due to the distance between connecting tabs, leading to magnetic field compensation failures and potential short circuits.

Method used

A switching cell design incorporating two connecting devices, one for each polarity, with an insulating means layered between them to compensate magnetic fields and facilitate secure connections, reducing stray inductance and preventing short circuits.

Benefits of technology

The design ensures low inductive connections and secure power transfer by compensating magnetic fields, while simplifying manufacturing and reducing the risk of short circuits.

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Abstract

The present invention relates to a switching cell (1) comprising a power module (2) and a DC link capacitor (4), the power module (2) having a connecting tab of a first polarity (14) and a connecting tab of a second polarity (16), the DC link capacitor (4) having a linking tab of the first polarity (22) and a linking tab of the second polarity (24), the switching cell (1) comprising a first connecting device (32) between the connecting tab of the first polarity (14) and the linking tab of the first polarity (22) and a second connecting device (34) between the connecting tab of the second polarity (16) and the linking tab of the second polarity (24), the switching cell (1) comprising an insulating means (70) at layered between the first connecting device (32) and the second connecting device (34).
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