Segmented High-Voltage Housing for Compact Semiconductor Circuits
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Solution Overview
Problem
Existing high-voltage converters have large housing dimensions due to the need for extensive insulation between semiconductor circuits and housings, making maintenance difficult.
Innovation Solution
The converter design allows different housing parts to be brought to various electrical potentials, reducing the need for extensive insulation and enabling a more compact housing design with improved accessibility for maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sufficient distance is provided between the semiconductor circuit and housing wall for electrical insulation, then insulation reliability is improved, but housing dimensions increase and maintenance accessibility deteriorates
Solution Approach 1:
The housing is divided into multiple housing parts (first housing part, second housing part, third housing part) with different electrical potentials. This segmentation allows each housing part to be optimally positioned relative to semiconductor circuit components at corresponding potentials, reducing insulation distances while maintaining insulation reliability.
Solution Approach 2:
Different housing parts are assigned different electrical potentials (ground potential, intermediate potential, high voltage potential) matching the local potential requirements of adjacent semiconductor circuit components. This local quality approach minimizes insulation distances at each location while ensuring overall insulation reliability.
2Reliability
If large insulation distances are maintained between semiconductor circuit and housing, then electrical insulation is ensured, but housing volume increases
Solution Approach 1:
The housing is segmented into multiple parts with different potentials, allowing compact arrangement where each segment is positioned close to semiconductor components at matching potentials, significantly reducing overall housing volume while maintaining insulation.
Solution Approach 2:
Housing parts are assigned potentials matching adjacent semiconductor circuit potentials, creating equipotential relationships that eliminate the need for large insulation distances between housing and semiconductor components.
3Reliability
If the housing is designed as a complete enclosure for protection, then protection is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The housing is designed as modular segments that can be independently accessed. The first housing part at ground potential provides a protected environment while allowing maintenance personnel to access semiconductor components through openings in the housing structure without exposing themselves to high voltages.
Data Source
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AI summary
The invention relates to an electrical device (6) having a semiconductor circuit (7) which is designed for a high voltage and is arranged in a housing (8). The invention is characterized in that the housing comprises a plurality of housing parts (81-86) which are electrically insulated from one another, wherein different electrical potentials can be assigned to the housing parts. The invention further relates to an inverter (1) having the electrical device according to the invention.