Vehicle Window Glass Insert Assembly for Precise Decoration Mounting
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Solution Overview
Problem
Existing methods for connecting vehicle window glass with large-size irregular decoration parts are inefficient, requiring complex and costly positioning processes, such as one-piece injection molding and final assembly, which struggle with material selection and size constraints, and often necessitate additional labor and tools.
Innovation Solution
A vehicle window glass with a through hole and a hollow columnar insert, where the insert is fixed in the hole, allowing for simple, accurate, and cost-effective positioning and fixing of the decoration part, using materials like metal, acrylonitrile butadiene styrene, or polypropylene, and employing clamping structures for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-piece injection molding is used to connect decoration part and glass, then the connection is integrated and reliable, but the material selection is limited and large-size decoration parts cannot be processed
Solution Approach 1:
The connection system is divided into separate components: the glass body with through hole, the insert fixed in the through hole, and the decoration part. This segmentation allows each component to be manufactured independently with different materials and processes, enabling flexible material selection while maintaining connection reliability through the structured assembly of these segments.
2Reliability
If one-piece injection molding is used, then integrated connection is achieved, but the size of decoration part is constrained by mold capacity
Solution Approach 1:
By segmenting the connection system into separate components (glass body, insert, decoration part), the decoration part can be manufactured independently without size constraints imposed by injection mold capacity. The insert in the through hole provides the connection function, allowing the decoration part to be arbitrarily large while maintaining reliable connection.
3Ease of manufacture
If final assembly with fixture positioning is used, then decoration part can be fixed to glass, but additional labor and positioning tools are required
Solution Approach 1:
The through hole with insert structure enables self-positioning of the decoration part. The protruding structure of the decoration part fits into the through hole, automatically achieving accurate positioning without requiring external fixtures or positioning tools. This self-service mechanism simplifies the assembly process and eliminates additional equipment requirements.
4Ease of manufacture
If manipulator positioning process is used, then decoration part can be fixed to glass, but production cost increases
Solution Approach 1:
The through hole with insert creates a self-positioning system where the protruding structure of the decoration part automatically aligns and positions itself during assembly. This eliminates the need for expensive manipulator positioning systems, significantly reducing production costs while maintaining assembly feasibility.
5Measurement precision
If through hole with insert is used, then positioning accuracy is improved and fixing process is simplified, but additional insert component is required
Solution Approach 1:
The insert serves multiple functions simultaneously: it provides precise positioning through its fit in the through hole, enables reliable fixation by anchoring the decoration part, and can be integrated with the glass body through injection molding. By consolidating these multiple functions into a single component, the overall system complexity is reduced despite adding the insert.
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 enables reliable, precise, and cost-effective connection of large-size irregular decoration parts to vehicle window glass, reducing labor and material costs, and allowing for diverse design applications without size or material limitations, while protecting the mold during injection molding.
Implementation Method 1
the insert is fixed in the through hole of the glass body by injection molding
Data Source
AI summary
A vehicle window glass includes a glass body provided with a through hole and an insert which is a hollow columnar body and at least one end of which is an open end. The insert is fixed in the through hole of the glass body. It is possible to obtain direct connection between the vehicle window glass and the large-size irregular decoration part with the cooperation of the through hole on the glass body and the insert in the through hole. This connection ensures positioning accuracy and fixing reliability and can be widely applied to various occasions.