Filament LED Lamp Thermal Base and Light Direction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
LED lamps require heat dissipating features to prevent overheating, which can alter their appearance when incorporating a heat sink, and they need to mimic the appearance of incandescent lamps while efficiently directing light.
Innovation Solution
A thermally conductive base with a protruding appendage houses an LED assembly and an electrical module, allowing for efficient heat dissipation and adjustable light direction, while maintaining a design similar to incandescent lamps through a bulb and interlocking housing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipating features are incorporated into LED lamp, then heat dissipation efficiency is improved, but appearance is altered
Solution Approach 1:
The patent merges the heat dissipation function with the lamp base structure by making the base itself thermally conductive. The base integrates both structural support and heat sinking functions, eliminating the need for separate visible heat dissipation components that would alter the lamp's appearance.
Solution Approach 2:
The lamp base is designed to serve multiple functions simultaneously: structural support, electrical connection, and heat dissipation. This multi-functionality allows the base to handle thermal management without requiring additional dedicated heat dissipation structures that would compromise aesthetics.
2Illumination intensity
If LED assembly is positioned centrally in bulb, then light direction control is improved, but structural complexity increases
Solution Approach 1:
The appendage protrudes asymmetrically from the base toward the center of the bulb, creating an optimized light direction pathway. This asymmetric structure allows precise control of light emission direction while maintaining a relatively simple overall design without requiring complex mechanical adjustment mechanisms.
3Reliability
If wire is routed through channel in appendage, then electrical connection reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The channel for wire routing is pre-formed within the appendage structure during base manufacturing. This preliminary preparation of the wire pathway simplifies subsequent assembly operations, as workers only need to insert and connect wires rather than create routing paths during assembly.
Solution Approach 2:
The channel acts as an intermediary structure that guides and protects the electrical wire between the base and LED assembly. This dedicated pathways ensures reliable electrical connection while organizing wire routing in a straightforward manner that does not require complex assembly procedures.
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
The solution effectively manages heat dissipation and light direction, enhancing the LED lamp's efficiency and appearance, making it more comparable to incandescent lamps while ensuring reliable operation.
Implementation Method 1
a thermally conductive base including an appendage protruding from a center of a first end
Data Source
AI summary
An LED lamp includes a thermally conductive base including an appendage protruding from a center of a first end and an opening to cavity on a second end. The appendage includes a channel coupled to the cavity. The LED lamp further includes an LED assembly disposed at an end of the protruding appendage and in thermal communication with the base. The LED assembly further includes a bulb disposed on the first end, wherein the appendage protrudes in a direction towards the center of the bulb, and wherein the LED assembly is proximate to the center of the bulb. The LED assembly further includes an electrical housing, configured to house an electrical module, disposed inside the cavity of the base. An electrical wire disposed inside the channel electrically couples the LED assembly to the electrical module.