Earthing Contact With Tilting Plate For Fastening Tolerance
Solution Overview
Problem
Existing grounding contacts require high precision in fastening to ensure a flat electrical contact between the contact surface and the component surface, which is not achievable with imprecise fastening.
Innovation Solution
A grounding contact design featuring a conductive contact plate with a pressure element and a fastening element, where the passage is a circular cylindrical bore and the holding section is a circular cylindrical shaft section, allowing for a tilt angle of at least 6°, ensuring flat contact even with angled fastening, and including a sealing disk for environmental protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flat contact of the first contact surface on the component surface is ensured through precise fastening, then electrical contact reliability is improved, but manufacturing complexity and fastening precision requirements increase
Solution Approach 1:
The invention changes the geometric parameters of the passage and holding section to create a tilt angle between the first contact surface and the fastening section. Specifically, the passage is designed with a bore diameter and bore length that create a tilt angle of at least 6° (preferably at least 10°, particularly preferably at least 20°). This parameter change allows the contact plate to be tilted relative to the fastening element, compensating for fastening angle deviations and ensuring flat contact without requiring high fastening precision.
2Adaptability or versatility
If the first contact surface is tilted relative to the fastening section by a tilt angle of at least 6°, then tolerance to fastening angle deviations is improved, but passage and holding section geometry complexity increase
Solution Approach 1:
The invention segments the fastening element into distinct functional sections: a fastening section for attachment to the component, a holding section arranged in the passage, and a pressure element for pressing the contact plate. The passage itself is segmented into a bore portion and a tilt-angle-inducing portion. This segmentation allows each section to perform its specific function while simplifying the overall design - the holding section is a simple circular-cylindrical shaft that fits into the corresponding passage, creating the necessary tilt angle without complex geometry.
Data Source
Figure 1
AI summary
The invention relates to an earthing contact for creating an electrical contact between an earthing cable and a component comprising an electroconductive component surface, with an electroconductive contact plate and a fixing element, the contact plate having a first contact surface for placing the contact plate on the component surface in a flat manner, a second contact surface for placing an earthing cable on the contact plate, and a passage for the fixing element, the fixing element comprising a fixing section for fixing the fixing element in the component, a pressure element for pressing the contact plate onto the component surface and a holding section for arranging in the passage of the contact plate, when the pressure element presses the contact plate onto the component surface, the first contact surface being tiltable in relation to the fixing section by a tilting angle of at least 6° when the holding section is arranged in the passage.