Light Metal Spring Strut Mount with Adhesive Insulation
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Solution Overview
Problem
Existing motor vehicle body designs with steel spring strut mounts are heavy and inefficient in terms of space usage, while aluminum alternatives are costly and complex to join with ferrous components, leading to weight and fuel consumption issues.
Innovation Solution
A motor vehicle body with a cast light metal spring strut mount connected to ferrous components using punch rivets and an insulating adhesive layer, allowing for weight savings and simplified integration of connection points without additional components, while maintaining structural integrity and preventing electrochemical corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a steel spring strut mount is used, then structural strength and durability are ensured, but weight increases and fuel consumption rises
Solution Approach 1:
The patent changes the material parameter from ferrous material to light metal (aluminum or magnesium alloy), achieving weight reduction while maintaining structural strength through optimized material selection and design
Solution Approach 2:
The patent employs composite construction by combining light metal cast components with ferrous material components, creating a hybrid structure that leverages the advantages of both material systems to achieve weight savings without compromising strength
2Weight of moving object
If a light metal spring strut mount is used, then weight is reduced and fuel consumption decreases, but connection complexity increases due to incompatibility with ferrous components
Solution Approach 1:
The patent introduces an intermediary insulating layer (adhesive layer) between the light metal spring strut mount and ferrous components, which serves dual purposes: preventing electrochemical corrosion and facilitating the connection between incompatible materials
Solution Approach 2:
The patent replaces traditional mechanical welding connections with punch rivets and adhesive bonding, eliminating the need for complex welding processes and additional components while achieving reliable connections between light metal and ferrous materials
3Reliability
If additional components are added to connect light metal and ferrous parts, then connection reliability is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The patent merges multiple functions into the insulating layer: it simultaneously serves as a corrosion protection barrier and as an adhesive bonding medium, eliminating the need for separate protective components and simplifying the overall connection system
Solution Approach 2:
The insulating layer performs multiple protective and connective functions autonomously, preventing corrosion without requiring additional protective components and facilitating bonding without needing separate adhesive applications
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution achieves significant weight reduction, improved driving dynamics, and cost-effective production by using a light metal spring strut mount connected to ferrous components with punch rivets and an adhesive insulating layer, enabling a compact and rigid design without the need for additional holders or complex joining processes.
Implementation Method 1
Aluminum is inferior to ferrous materials in the electrical voltage series. So that electrochemical corrosion does not occur in the contact area between the spring strut mount made of aluminum and the other component made of the ferrous material, an insulating layer is advantageously arranged between the spring strut mount and the other component made of the ferrous material.
Implementation Method 2
The insulation layer is preferably an adhesive layer. The adhesive not only insulates the strut mount from the other component, but also increases the strength of the connection between the two components after it has hardened.
Data Source
AI summary
The invention relates to a suspension strut mount pertaining to a motor vehicle body and consisting of an aluminium cast component. The aim of the invention is to create a motor vehicle body comprising a suspension strut mount which is as compact as possible and highly advantageous in terms of weight compared to a steel construction. According to the invention, a suspension strut mount (4) of a motor vehicle body is a cast component consisting of a light metal. The suspension strut mount (4) is connected to at least one other supporting component (1, 3) of the motor vehicle body, consisting of a ferrous material. The use of a light metal such as an aluminium or magnesium alloy for the suspension strut mount (4) enables a considerable weight gain to be achieved compared to a suspension strut mount consisting of a ferrous material.