Chassis Member With Thermoplastic Anchor Part
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Solution Overview
Problem
The existing chassis for electronic devices, such as laptop PCs, face challenges in achieving a balance between light weight, small thickness, and high strength due to the limitations of laminated sheets with foamed materials, which are prone to breakage under external forces due to the concentration of load on thermoplastic resin parts inferior in strength.
Innovation Solution
A laminated sheet structure with a thermoplastic resin bonded to the external-form end face, featuring an anchor part formed by inserting thermoplastic resin into openings on the surface, providing enhanced bonding strength and distributing external forces effectively through the high-strength laminated sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a laminated sheet with thermoplastic resin is used for chassis, then light weight and small thickness are achieved, but strength and shock resistance deteriorate due to load concentration on the thermoplastic resin part
Solution Approach 1:
The patent uses a composite structure combining a laminated sheet (high-strength material) with a thermoplastic resin part (easy to mold). The laminated sheet provides the primary structural strength while the thermoplastic resin part provides molding flexibility and integration with other components. This composite approach allows the chassis to maintain light weight and thin profile while achieving sufficient strength through the high-strength laminated sheet.
2Ease of manufacture
If the nut is arranged in the thermoplastic resin part bonded to the laminated sheet, then assembly is simplified, but the thermoplastic resin part becomes the weak link under external forces
Solution Approach 1:
The patent introduces an anchor part as an intermediary element that mediates between the thermoplastic resin part and the laminated sheet. The anchor part is formed by injecting molten thermoplastic resin into a through-hole of the laminated sheet, creating a mechanical interlock that extends through both materials. This anchor part serves as a mediator that transfers and distributes external forces from the thermoplastic resin part through the anchor part to the high-strength laminated sheet, preventing force concentration on the weak thermoplastic resin part while maintaining simplified assembly through insert-molding of the nut.
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 configuration enhances the structural integrity and shock resistance of the chassis by distributing loads through the high-strength laminated sheet, reducing the risk of thermoplastic resin breakage and delamination, thereby creating a more robust and durable electronic device enclosure.
Implementation Method 1
a thermoplastic resin bonded to at least a part of an external-form end face of the laminated sheet
Implementation Method 2
an anchor part formed by inserting the thermoplastic resin into the opening
Data Source
AI summary
A member for chassis is provided. The member for chassis includes a frame part that is made of a thermoplastic resin bonded to at least a part of an external-form end face of a laminated sheet with an intermediate layer arranged between a pair of fiber reinforced resin sheets. The thermoplastic resin that configures the frame part is extended to a surface of the laminated sheet. An opening is provided on the surface of the laminated sheet that has been covered with the extended thermoplastic resin, and the member for chassis includes an anchor part formed by putting the thermoplastic resin into the opening.