Vehicle Panel Hole Mounting Device with Integrated Base and Welding Protrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing hole mounting devices for vehicle panels require multiple holes, which complicates the coupling of earth terminals and increases the risk of noise, vibration, and harshness (NVH) issues, as well as introduces exhaust gas into the vehicle interior, while also reducing working convenience due to the need for additional stopper holes and nuts.
Innovation Solution
A hole mounting device featuring a base with a protrusion and fastening part that is inserted into corresponding holes in the vehicle body panel, allowing for reduced space between holes and improved fastening with a bolt, while minimizing the introduction of exhaust gas and noise through a cylindrical protrusion and welding protrusion design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple holes (mounting hole and stopper hole) are provided in the vehicle body panel for earth terminal mounting, then the earth terminal can be securely fastened, but the number of holes increases leading to NVH performance degradation and exhaust gas introduction
Solution Approach 1:
The invention merges the mounting hole and stopper hole into a single integrated hole structure. The base component is inserted through one hole and positioned using a positioning protrusion that engages with a positioning recess in the vehicle body panel, eliminating the need for a separate stopper hole while maintaining secure fastening reliability
Solution Approach 2:
The single hole serves multiple functions: it acts as both the mounting hole for inserting the base and the stopper hole for preventing rotation, through the positioning protrusion and recess mechanism. This multi-functional design reduces the total number of holes required in the vehicle body panel
2Strength
If a nut is disposed under the mounting hole to improve fastening force, then the bolt fastening is strengthened, but the device complexity and number of parts increases
Solution Approach 1:
The invention combines the base component and nut into a single integrated base assembly. The nut is pre-installed on the lower surface of the base, forming an integrated structure that eliminates the need for a separate nut component during assembly, thereby reducing device complexity while maintaining fastening strength
Solution Approach 2:
The nut is pre-installed on the base component during manufacturing, performing the fastening preparation in advance. This preliminary action eliminates the need for separate nut installation steps during vehicle assembly, reducing both device complexity and assembly complexity
3Reliability
If multiple holes are provided for earth terminal mounting, then secure fastening is achieved, but working convenience is reduced due to additional alignment and assembly steps
Solution Approach 1:
The invention merges the mounting and stopping functions into a single hole with an integrated positioning protrusion-recess mechanism. This eliminates the need for separate alignment operations for multiple holes, improving working convenience while maintaining mounting reliability through the positioning feature
Solution Approach 2:
The positioning recess is pre-formed in the vehicle body panel and the positioning protrusion is pre-formed on the base component. This preliminary preparation of positioning features enables quick and easy alignment during assembly, improving working convenience without compromising mounting reliability
Data Source
AI summary
A hole mounting device of a panel for a vehicle, may include a vehicle body panel provided with a plurality of holes, and a base disposed inside the vehicle body panel, wherein a first portion of the base is coupled to a first hole of the plurality of holes of the vehicle body panel, and a second portion of the base is fastened with a second hole of the plurality of holes of the vehicle body panel with a bolt, wherein an upper surface of the first portion in the base is provided with a protrusion and wherein the base includes a fastening part and the fastening part is provided with a circular welding protrusion.