19-Inch Mounting Rack for Power Electronics with Front Access
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Solution Overview
Problem
Conventional power electronics installations in charging stations face challenges with high heat generation due to high charging currents, requiring compact and accessible mounting solutions for efficient service and replacement of components while maintaining safety and security standards.
Innovation Solution
A 19-inch standardized mounting rack with modular 19-inch inserts allows for one-sided servicing, modular construction, and front-side access to electrical components, incorporating busbar systems for power distribution and coolant accessibility, enabling efficient power management and service with enhanced security and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power electronics are integrated in the charging column with direct DC connections, then high charging currents can be transmitted with low loss and short charging times are achieved, but considerable waste heat is generated
Solution Approach 1:
The power electronics system is divided into modular 19-inch inserts that can be independently mounted in a standardized rack. This segmentation allows for better thermal management by distributing heat-generating components across multiple modules with separate cooling paths, while maintaining the high-power DC charging capability through modular power electronics architecture
2Power
If conventional charging columns with integrated power electronics are used, then high power density is achieved, but service access to power electronics is limited requiring housing hatches and multi-sided access
Solution Approach 1:
The service access problem is solved by transitioning from horizontal/multi-sided access to vertical/front-sided access. The 19-inch rack mounting system allows service personnel to access all power electronics components from the front of the charging column, eliminating the need for side panels or rear access hatches while maintaining high power density through compact vertical rack arrangement
3Ease of repair
If power electronics are mounted in standardized 19-inch rack inserts, then modular construction with rapid servicing is achieved, but compact mounting space is required
Solution Approach 1:
Multiple 19-inch rack inserts are nested vertically within a compact rack structure, maximizing the use of vertical space. This nested arrangement allows numerous power electronics modules to be mounted in a small horizontal footprint while maintaining front-sided accessibility for all components, achieving both compact mounting and ease of repair
Data Source
AI summary
A mounting rack is described for a power electronics installation, including busbars for electrically connecting a plurality of assemblies, which busbars are arranged on the rear side of the mounting rack. A corresponding power electronics installation is also described.