LED Lighting Apparatus with Elastic Hook Heat Sink Assembly

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Solution Overview

Problem

Current LED lighting devices lack a simple and efficient assembly design, which complicates installation and can lead to unstable operation due to inadequate heat dissipation.

Innovation Solution

The design incorporates a cup body with a heat sink and a light source module, where the heat sink is securely positioned using elastic hooks, eliminating the need for screws and enhancing heat dissipation through a combination of plastic and metal materials, with a light cover that allows for efficient light transmission and diffusion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional screw-based assembly is used to secure the heat sink, then the heat sink is firmly fixed, but the assembly process becomes complex and time-consuming

Engineering Contradiction:
Improveassembly simplicityVSAvoidassembly structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the traditional screw-based mechanical fastening system with an elastic hook mechanism. The cup body includes elastic hooks that engage with the heat sink, eliminating the need for screws and simplifying the assembly process while maintaining secure fixation.

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

Solution Approach 2:

The elastic hooks in the cup body automatically engage with the heat sink when assembled, providing self-fixing functionality without requiring additional fastening operations. The elastic deformation of the hooks creates a self-locking mechanism that secures the heat sink in place.

Inventive Principle:
Principle #25Self-service

2Temperature

If a heat sink is added to improve heat dissipation, then thermal management is enhanced, but the device structure becomes more complex

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidstructure
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent integrates the heat sink directly into the cup body structure, merging two separate components (heat sink and mounting structure) into a single integrated unit. This reduces the number of separate parts and simplifies the overall device structure while maintaining effective heat dissipation functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cup body is constructed using composite materials that combine thermal conductivity properties for effective heat dissipation with structural integrity. The integration of heat sink functionality into the cup body utilizes material properties to achieve both thermal management and structural support.

Inventive Principle:
Principle #40Composite materials

3Device complexity

If multiple components are integrated into one unit, then assembly is simplified, but manufacturing precision requirements increase

Engineering Contradiction:
Improveassembly structureVSAvoidmolding precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

While the cup body is integrated, the patent maintains segmentation in other critical components such as the driver module and light source module. This allows the complex integrated cup body to be manufactured separately with controlled precision requirements, while other modules can be assembled with standard tolerances.

Inventive Principle:
Principle #1Segmentation

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 design simplifies the installation process and ensures stable operation by effectively dissipating heat, reducing the need for screws and improving the overall efficiency of the LED lighting apparatus.

Implementation Method 1

The light source module generates heat. The heat is transmitted by the heat sink and the heat sink helps transmit the heat further to the cup body to efficiently perform heat dissipation.

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

The cup body has at least one first elastic inverted hook for being reformed when the heat sink enters into the cup body and for keeping the heat sink staying at a predetermined position with respect to the cup body.

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

The light cover may be translucent or transparent so as light may be escaped through the light cover.

Methodology Applied
Scientific EffectLight diffusion: Scattering

Data Source

PatentUS11035523B2Lighting apparatus
Publication Date: 2021.06.15 XIAMEN ECO LIGHTING CO LTD
  • US11035523B2 patent drawing
  • US11035523B2 patent drawing
  • US11035523B2 patent drawing

AI summary

A lighting apparatus includes a light cover, a cup body, a heat sink, a light source module, a bulb cap and a driver. The cup body has a cup bottom, a cup top and a cup wall. The cup top has a larger diameter than the cup bottom. The light cover is attached to the cup top. The heat sink has a peripheral wall and a holder. The peripheral wall clings to the cup wall.