Angled Cable Connection Element for Compact Switch Cabinets
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Solution Overview
Problem
In switchgear cabinets, especially with high-power components like power converters, the existing cable connection methods require significant space and mechanical stress due to the need for multiple cable bendings, making assembly difficult and costly.
Innovation Solution
The cable connection element features an electrical contact area and an assembly area positioned at an intersecting angle, reducing the need for cable bendings and allowing for a more compact and cost-effective connection using standard cable lugs, which can be arranged closer together with reduced mechanical forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables are connected using conventional straight cable connection elements, then the electrical connection is simple and direct, but the cables require multiple bendings (S-shaped profile) which increases space requirements and makes assembly difficult
Solution Approach 1:
The cable connection element is designed with an inclined electrical contact area that forms an angle (positioning angle) with the assembly area, changing the spatial arrangement from a straight linear connection to an inclined multi-dimensional configuration. This dimensional change allows cables to connect more directly without requiring S-shaped bendings, thereby reducing space requirements and simplifying assembly operations
2Quantity of substance
If multiple cables are connected with standard straight connection elements, then each cable requires independent bending space, but the cumulative space requirement and assembly complexity increase significantly
Solution Approach 1:
Multiple cable connection elements are integrated into a single modular unit with a common assembly area that attaches to the electrical component. The inclined electrical contact areas of multiple elements are arranged to receive multiple cable lugs simultaneously, allowing multiple cables to be connected in a unified manner rather than requiring separate bending and connection operations for each cable, thereby reducing overall assembly complexity
3Area of stationary object
If cable connection elements are arranged closer together to save space, then the space efficiency improves, but the mechanical stress on cables and connection elements increases due to tighter bending radii
Solution Approach 1:
The inclined electrical contact area creates an angled pathway for cable connection that optimizes the spatial arrangement between connection elements. This inclination allows cables to approach the connection area at an optimal angle, reducing the required bending radius and mechanical stress even when connection elements are arranged in compact configurations, thereby enabling closer spacing without compromising cable strength
Data Source
AI summary
A switch cabinet includes an electric component, e.g. a power converter, having at least three cable connection elements. Each of the cable connection elements has an electric contact area capable of being contacted by a cable lug, and an assembly area. The cable connection element is fastenable at the assembly area to a body of the electric component and is connected to the body of the electric component at the assembly area. The electric contact area and the assembly area are arranged on the cable connection element in such a way that a plane of the electric contact area and a plane of the assembly area intersect at a positioning angle.