Cable Lug Retaining Device with Centering Mechanism
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Solution Overview
Problem
The complexity of attaching multiple cable lugs to a ground bolt in vehicle technology leads to increased fitting complexity and the risk of cable lugs being forgotten during installation, with existing solutions requiring complex production processes and disposable centering aids.
Innovation Solution
A holding arrangement with a base part and cover part that securely centers and fixes cable lugs via axial and radial openings, using centering means on the outer circumference and anti-rotation mechanisms to prevent detachment, allowing for easy installation and remaining on the ground contact without waste, with cost-effective production from plastic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable lugs are attached individually to a ground bolt, then each connection can be made securely, but the fitting complexity increases significantly when multiple cable lugs need to be attached
Solution Approach 1:
The holding arrangement is divided into a base part and a cover part that can be assembled together to form a complete holding device. The base part contains radial openings for cable lug insertion, while the cover part closes the axial opening to secure the cable lugs. This segmentation allows for simplified individual assembly steps while maintaining secure connections.
Solution Approach 2:
Multiple cable lugs are pre-assembled into the holding arrangement before final installation on the ground bolt. The cable lugs are inserted through radial openings and positioned in advance, ensuring that all connections are prepared beforehand. This preliminary assembly reduces on-site fitting complexity and prevents forgotten connections.
2Reliability
If a cylindrical cage with press-on element and spring is used to hold cable lugs, then cable lugs can be secured, but the production complexity increases
Solution Approach 1:
The invention removes the complex spring mechanism and press-on element from the holding arrangement. Instead, the base part and cover part are designed to work together with simple geometric features - the base part has radial openings for cable lug insertion, and the cover part provides closure. This extraction of unnecessary components significantly simplifies production while maintaining cable lug retention.
Solution Approach 2:
The holding arrangement uses a simple shell-like structure formed by the base part and cover part. These parts can be manufactured as thin-walled plastic components that are easy to produce through injection molding or similar processes. The flexible design allows for easy assembly and disassembly without complex mechanisms.
3Manufacturing precision
If disposable centering aids are used to center cable lugs during installation, then positioning accuracy is achieved, but waste is generated and costs increase
Solution Approach 1:
The holding arrangement is designed with built-in centering features that are integral to its structure. The base part and cover part contain geometric elements that automatically center cable lugs during assembly without requiring external centering aids. This self-centering capability eliminates the need for disposable centering tools, reducing waste and costs while maintaining positioning accuracy.
Data Source
AI summary
The invention relates to a holding arrangement for at least two electrical connection elements, such as cable lugs, for example, which each have an electrical connection section and a line section, with a base part and a cover part, which can be connected to the base part to form the holding device, the connection sections being inserted axially one on top of the other in the holding device and being fixed axially, and the line sections extending in the radial direction from radial openings of the holding device, the radial openings being designed in such a way that the connection sections cannot be withdrawn from the radial openings, in addition an axial opening being formed on the base part and/or the cover part, via which axial opening electrical contact can be made with at least one connection section of the inserted connection sections, the holding device having centering means for centering the connection sections in the holding device, and the centering means acting on the outer circumference of the connection sections.