Transfer Switch Assembly Thermal Management
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Solution Overview
Problem
Existing power transfer switch devices for vehicles face challenges in efficiently managing thermal dissipation and minimizing space while switching between internal and external power sources, which affects their performance and reliability.
Innovation Solution
A compact power transfer switch assembly with a control logic assembly and power component assembly, featuring printed circuit boards, contactors, and a modular design that allows for efficient thermal management and space optimization, enabling seamless switching between internal and external power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the power transfer switch device is compacted to minimize space, then the device occupies less space, but thermal dissipation performance deteriorates
Solution Approach 1:
The power transfer switch device is divided into modular components including a housing, circuit board assembly, contactor assembly, and thermal management components. This segmentation allows each component to be optimized independently for both compactness and thermal performance, resolving the contradiction between small volume and effective heat dissipation.
Solution Approach 2:
The patent utilizes three-dimensional space efficiently by arranging components in multiple layers and dimensions within the compact housing. Thermal pathways are designed to extend in multiple directions, allowing heat to dissipate through various dimensions rather than requiring a large surface area in a single plane, thus achieving both compact size and effective thermal management.
2Reliability
If electronic components are increased to improve switching functionality, then the device performs better, but the device complexity increases
Solution Approach 1:
Multiple functional components are merged into integrated assemblies. The circuit board assembly combines control electronics, switching elements, and connection terminals into a single unit. The contactor assembly integrates mechanical switching components with electrical contacts. This merging reduces the number of separate components and connections, thereby reducing overall device complexity while maintaining reliable switching functionality.
3Temperature
If thermal management components are added to improve heat dissipation, then thermal performance is improved, but the device volume increases
Solution Approach 1:
Thermal management components are nested within the existing device structure rather than adding external components. Heat sinks are integrated into the housing walls, thermal pathways are routed through existing structural elements, and cooling channels are incorporated into the housing design. This nesting approach enables effective thermal management without significantly increasing the overall device volume.
Data Source
AI summary
A transfer switch assembly is disclosed that includes a power switch device with a number engagement landings and a printed circuit board defining an opening bordered by a number of tabs. The tabs engage the landings as the switch device extends through the openings, and can be fastened together.