LED Lamp Thermal Segmentation via Insulation Plate
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Solution Overview
Problem
Traditional LED lamps experience significantly shortened lifespan due to high ambient temperatures within their power supply cavities, which are typically between 40-60°C, leading to potential damage and reduced service life.
Innovation Solution
An LED lamp design incorporating an omnidirectional heat dissipation system, featuring a heat sink and a heat insulation member between the LED lamp housing and the power supply component, allowing for heat dissipation through natural convection via a hollow cavity with hollow grids, and utilizing a ceramic heat sink and thermally conductive insulating materials to manage thermal influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the power supply component is placed inside the LED lamp housing without thermal isolation, then the structure is simple and compact, but the ambient temperature inside the power supply cavity becomes excessively high (40-60°C), shortening the service life
Solution Approach 1:
The lamp housing is divided into functionally independent sections: an LED light-generating section and a power supply component section. These sections are thermally isolated from each other, allowing the power supply to operate in a cooler environment while maintaining structural integration. The segmentation principle resolves the contradiction by creating separate thermal zones within a unified housing structure.
Solution Approach 2:
A heat insulation plate is introduced as an intermediary component between the LED light-generating section and the power supply component section. This heat insulation plate blocks heat transfer from the LED section to the power supply section, effectively reducing the ambient temperature around the power supply without requiring complete structural separation. The intermediary element resolves the contradiction by providing thermal isolation while maintaining structural simplicity.
2Volume of moving object
If the LED chip and power supply component are in close proximity without thermal management, then the device is compact, but the heat generated by both components accumulates, creating a high-temperature environment that damages the power supply
Solution Approach 1:
The internal space is segmented into distinct thermal zones: a hot zone for the LED light-generating section and a cooler zone for the power supply component. This segmentation allows compact arrangement while preventing heat accumulation in the power supply area, resolving the contradiction between compactness and thermal damage prevention.
Solution Approach 2:
The heat insulation plate serves as a thermal barrier intermediary between the heat-generating LED section and the heat-sensitive power supply component. It allows the components to be positioned close together for compactness while blocking harmful heat transfer, thus preventing thermal damage without sacrificing compact design.
Solution Approach 3:
The harmful thermal influence is extracted from the power supply component's environment by blocking heat transfer paths. The heat insulation plate extracts heat from the potential thermal field around the power supply, creating a protected thermal niche that allows compact positioning without thermal damage.
3Device complexity
If traditional heat dissipation methods are used without omnidirectional design, then the structure is simpler, but the heat dissipation efficiency is insufficient, leading to high ambient temperatures
Solution Approach 1:
The heat dissipation design transitions from traditional single-direction or limited-direction convection to omnidirectional heat dissipation across multiple surfaces of the lamp housing. By utilizing the outer surfaces of the lamp housing in all directions as heat dissipation surfaces, the system achieves superior heat dissipation efficiency without significantly increasing structural complexity.
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
Effectively reduces internal ambient temperatures, preventing damage from high-temperature environments and extending the service life of the LED lamp by enhancing heat dissipation and thermal insulation.
Implementation Method 1
The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between the LED lamp housing and the heat sink
Implementation Method 2
the hollow cavity includes a plurality of hollow grids along a periphery surface of the cavity for heat generated by the power supply component to dissipate outside the lamp through natural convection
Implementation Method 3
The heat sink supports an LED chip
Data Source
AI summary
The present disclosure proposes an LED lamp with omnidirectional heat dissipation, which includes an LED lamp housing including a power supply component inside, and a heat sink supporting an LED chip. The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between each other. The LED lamp of the present disclosure adds a heat insulation plate between the LED lamp housing for placing the power supply component and the heat sink, to block and weaken the mutual influence between the heat generated by the LED chip and the heat generated by the power supply component. The design improves the problem of excessively high ambient temperature inside the power supply cavity of the traditional LED lamps, effectively avoids damage to the power supply device due to long-term working in a high-temperature environment, and improves the service life of the LED lamp.