Laptop Display Thermal Welding Pin Fastening

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Solution Overview

Problem

The assembly of a laptop display using multiple bolts is labor-intensive and often results in uneven combination strength between the LCD panel and the cover body.

Innovation Solution

A display design featuring a cover body with thermal welding pins and hooks, where the LCD panel has metal extended fastening portions and fastening through holes, allowing for thermal welding to secure the components with enhanced structural reinforcement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If multiple bolts are used to fasten the LCD panel to the cover body, then the attachment strength is improved, but the assembly labor hours and complexity increase

Engineering Contradiction:
Improveattachment strengthVSAvoidassembly labor hours
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The patent combines multiple fastening functions into a single integrated structure. The cover body includes both hooks that engage with the LCD panel and thermal welding pins that insert through fastening holes, merging mechanical engagement and thermal welding operations into one unified fastening system. This eliminates the need for separate multiple bolts and reduces assembly steps.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces the traditional mechanical bolt-fastening system with a thermal welding system. Instead of using multiple mechanical bolts that require manual tightening, the invention uses thermal welding pins that are inserted through fastening holes and welded to the LCD panel, substituting mechanical fastening with thermal bonding to reduce assembly complexity and time.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If multiple bolts are used to fasten the LCD panel to the cover body, then the attachment strength is improved, but the uniformity of combination strength deteriorates

Engineering Contradiction:
Improveattachment strengthVSAvoiduniformity of combination strength
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The patent applies local quality by distributing multiple thermal welding pins at specific locations on the cover body. Each welding pin creates a localized strong bond at critical points (corners and edges), ensuring uniform distribution of attachment strength across the LCD panel. The hooks also provide localized mechanical engagement at strategic positions to enhance overall uniformity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs a composite fastening system that combines different materials and bonding mechanisms. The cover body is made of plastic with integrated metal or plastic thermal welding pins, while the LCD panel has metal extended fastening portions. This composite structure combines mechanical engagement (hooks) with thermal welding, creating uniform and consistent attachment strength through multiple complementary bonding mechanisms.

Inventive Principle:
Principle #40Composite materials

3Productivity

If thermal welding pins are used instead of multiple bolts, then the assembly efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveassembly efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the fastening function into distinct modular components: hooks for mechanical engagement, thermal welding pins for thermal bonding, and fastening holes for pin insertion. Each component has a specific function, and they work together in a systematic sequence. This segmentation allows for standardized manufacturing and simplifies the overall assembly process despite the multiple elements involved.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover body is designed with multi-functionality, integrating both hooks and thermal welding pins into a single component. The hooks provide mechanical engagement while the welding pins provide thermal bonding, making the cover body a multi-functional fastening device. This universality reduces the need for separate fastening components and simplifies the overall device structure.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 method reduces assembly labor hours and ensures uniform and strong attachment between the LCD panel and the cover body, facilitating efficient mass production.

Implementation Method 1

The thermal welding pin of the cover body is fit in the fastening through hole of the liquid-crystal display panel and is welded to the liquid-crystal display panel using a thermal welding method

Methodology Applied
Scientific EffectThermal welding: Welding

Data Source

PatentUS9069524B2Display for a laptop
Publication Date: 2015.06.30 WISTRON CORP
  • US9069524B2 patent drawing
  • US9069524B2 patent drawing
  • US9069524B2 patent drawing

AI summary

A display is disclosed. A cover body includes at least one thermal welding pin. A liquid-crystal display panel is disposed on the cover body and includes at least one fastening through hole. The thermal welding pin of the cover body is fit in the fastening through hole of the liquid-crystal display panel and is welded to the liquid-crystal display panel using a thermal welding method.