Solid-State Transformer Housing for High-Density Insulation
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Solution Overview
Problem
Current solid-state transformers face challenges in meeting safety and insulation requirements while wasting insulation materials and space, leading to reduced power density and increased manufacturing costs.
Innovation Solution
A solid-state transformer design featuring a housing with an insulation base and conductive enclosure, where power conversion units are housed in an accommodating cavity, ensuring insulation performance and safety regulations are met, reducing the need for insulation materials and optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each power conversion unit uses independent insulation materials and housing structures to meet safety and insulation requirements, then insulation performance and safety are ensured, but insulation material usage and manufacturing costs increase
Solution Approach 1:
The patent merges the insulation functions of multiple power conversion units into a single shared housing structure. The housing body serves as a common insulating enclosure for all power conversion units, eliminating the need for each unit to have separate insulation materials. This combining approach maintains insulation performance while significantly reducing total insulation material usage and manufacturing costs.
2Reliability
If each power conversion unit has independent housing structures to meet insulation requirements, then insulation between units is ensured, but the overall device volume increases
Solution Approach 1:
The patent combines multiple independent housing structures into a single integrated housing body that accommodates all power conversion units. The housing body is designed with internal spacing arrangements that ensure proper insulation between units while maintaining a compact overall volume, rather than requiring each unit to have its own separate housing.
Solution Approach 2:
The patent implements a nested arrangement where multiple power conversion units are housed within a single housing body. The units are positioned inside the housing with appropriate spacing, creating a nested structure that ensures insulation between units while minimizing the external volume of the overall device.
3Reliability
If insulation materials are used between power conversion units to meet safety requirements, then insulation performance is improved, but power density decreases
Solution Approach 1:
The patent merges the insulation function into the shared housing structure rather than placing insulation materials between each power conversion unit. This approach eliminates redundant insulation materials and maximizes the space available for power conversion units, thereby increasing power density while still meeting insulation requirements through the housing design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively reduces insulation material usage, lowers manufacturing costs, and increases power density by optimizing the arrangement and insulation of power conversion units within the housing.
Implementation Method 1
a high-frequency electric energy conversion technology based on an electromagnetic induction principle is combined with a power electronic conversion technology
Implementation Method 2
the conductive enclosure is sleeved on an outer surface of the insulation base and is grounded, to meet a safety regulation requirement of the solid-state transformer
Data Source
AI summary
A solid-state transformer, a power supply device, and a data center, related to the field of power technologies, to resolve problems of low power density and high manufacturing costs of the solid-state transformer. The solid-state transformer includes a housing and M power conversion units. The M power conversion units include a first power conversion circuit, a high-frequency transformer, and a second power conversion circuit, and the first power conversion circuit is coupled to the second power conversion circuit by using the high-frequency transformer. The housing has an insulation base and a conductive enclosure, the conductive enclosure is sleeved on an outer surface of the insulation base. The insulation base has an accommodating cavity, and in the M power conversion units, at least first power conversion circuits are disposed in the accommodating cavity at intervals, where M is an integer greater than 1.