Power conversion device
By using a conductive shielding layer and a collar component to fix the frame to the vehicle side component in the power conversion device, the problems of poor electromagnetic noise cutoff and grounding effect are solved, and the rapid discharge of electromagnetic noise and the improvement of EMC performance are achieved.
CN115004533BActive Publication Date: 2026-06-02DENSO CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DENSO CORP
- Filing Date
- 2020-12-15
- Publication Date
- 2026-06-02
Smart Images
Figure CN115004533B_ABST
Abstract
A power conversion device (1) includes a plurality of semiconductor modules (2), a smoothing capacitor (3), and a frame (5) that houses the semiconductor modules (2) and the smoothing capacitor (3). The power conversion device (1) includes an inner side shield layer (51a) that is provided so as to cover an inner surface of the frame (5) and has conductivity. The power conversion device (1) includes a collar member (8) that is integrally provided to the frame (5) in order to fix the frame (5) to a mounting table (13) on a vehicle side using a fixing member (12). The collar member (8) has conductivity and is capable of being inserted through by the fixing member (12). The collar member (8) and the inner side shield layer (51a) are electrically conductive.
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