Elastic Pressed Device for LED Light Bulb Shell Fixing

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Solution Overview

Problem

The existing buckle installation methods for LED light bulb shells are prone to insufficient strength, leading to instability and require complex adhesive gluing processes, which are environmentally harmful and inefficient.

Innovation Solution

A fixed structure for the light bulb shell featuring a light source board, a light allocation item, and an elastic pressed device that secures the bottom edge of the shell, eliminating the need for gluing by providing a firm and automated installation mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If buckle installation method is used to fix the bulb shell on the heat dissipation device, then the installation process is simplified, but the fixing strength is insufficient and the bulb shell easily falls off

Engineering Contradiction:
Improveinstallation process simplicityVSAvoidfixing strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent combines mechanical buckling structure with adhesive material to create a composite fixing system. The bulb shell includes a buckling structure that mechanically engages with the heat dissipation device, while adhesive layers are applied at specific positions to enhance the bonding strength, thereby resolving the contradiction between easy installation and sufficient fixing strength.

Inventive Principle:
Principle #40Composite materials

2Strength

If adhesive gluing process is used to fix the bulb shell, then the fixing strength is improved, but the process becomes complex and environmentally harmful

Engineering Contradiction:
Improvefixing strengthVSAvoidinstallation process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent divides the fixing function into two segments: a mechanical buckling structure for basic fixation and adhesive layers for enhanced bonding. This segmentation allows the mechanical structure to provide the primary fixing function while the adhesive segments reinforce critical areas, reducing the reliance on complex multi-step gluing processes and simplifying the overall installation while maintaining strength.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The buckling structure is designed to automatically engage and provide mechanical fixation when the bulb shell is installed, requiring no additional manual intervention for the primary fixing function. The adhesive layers are pre-positioned to activate automatically during installation, eliminating the need for separate adhesive application steps and reducing process complexity.

Inventive Principle:
Principle #25Self-service

3Strength

If adhesive gluing process is used to fix the bulb shell, then the fixing strength is improved, but the environmental impact increases

Engineering Contradiction:
Improvefixing strengthVSAvoidenvironmental harm
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent segments the fixing function between mechanical buckling (primary fixation) and adhesive layers (secondary reinforcement). This reduces the total amount of adhesive required and limits its use to critical bonding areas, thereby reducing environmental impact while maintaining sufficient fixing strength.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs a design where the mechanical buckling structure provides the primary and durable fixing function, making the adhesive layers supplementary rather than essential for long-term fixation. This approach minimizes adhesive usage and allows for the potential use of environmentally friendly, easily removable adhesive formulations that can be applied in a single step during manufacturing.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 ensures a stable and easy-to-install LED light bulb shell with reduced environmental impact, as it uses elastic components to securely fasten the shell without adhesives, simplifying the installation process and enhancing structural symmetry and firmness.

Implementation Method 1

The pressed device or the bottom edge is made of the elastic ingredients. The pressed device reaches to outside of the light source board to press the bottom edge of the light bulb shell.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10520138B2Light bulb with fixed structure
Publication Date: 2019.12.31 XIAMEN ECO LIGHTING CO LTD
  • US10520138B2 patent drawing
  • US10520138B2 patent drawing
  • US10520138B2 patent drawing

AI summary

A light allocation item is set on a light source board to change the spread of the light comes out from the light source board. A light bulb shell shade is set around the light source board and the light allocation item. A bottom edge is set on the opening site of the bottom of the light bulb shell. The bottom edge is set around the light source board. A pressed device is set on light allocation item. The pressed device or the bottom edge is made of the elastic ingredients. The pressed device reaches to outside of the light source board to press the bottom edge of the light bulb shell. Setting the pressed device on the light allocation item makes the pressed device reach outside of the light source board. Therefore, the pressed device sets the bottom of the light bulb shell elastically to realize the fix.