Lighting Device Ventilation Passage for Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting devices, especially high-power ones, face reliability issues due to heat generation from both the light source and driving power supply components, which are often addressed with complex and heavy heat dissipation structures that increase weight and cost.
Innovation Solution
A lighting device design featuring a passage through the housing and optical element for cross-ventilation, eliminating the need for additional heat dissipation components by using a pipeline with the light source on its outer wall and a flow guide plate to enhance air flow, allowing effective heat dissipation without additional structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat dissipation structure is added between the lamp housing and cover, then the temperature of the lighting device is reduced, but the weight and cost of the device increase
Solution Approach 1:
The patent merges the heat dissipation function with the existing lamp housing structure by forming a heat dissipation cavity within the housing itself, rather than adding a separate heat dissipation component. The housing serves dual purposes: structural enclosure and heat dissipation, eliminating the need for additional aluminum alloy heat dissipation structures with fins.
Solution Approach 2:
The lamp housing is designed to perform multiple functions simultaneously: it provides structural support, encloses the light source and driver, and acts as a heat dissipation component through the integrated heat dissipation cavity. This multi-functionality reduces the overall component count and weight while maintaining effective heat dissipation.
2Temperature
If a heat dissipation structure is added between the lamp housing and cover, then the temperature of the lighting device is reduced, but the complexity and cost of the device increase
Solution Approach 1:
The heat dissipation cavity is formed as an integral part of the lamp housing structure, eliminating the need for separate heat dissipation components. This integration simplifies the overall device structure and reduces assembly complexity while maintaining effective heat dissipation functionality.
Solution Approach 2:
The lamp housing serves as both the structural enclosure and the heat dissipation component, reducing the total number of parts needed. This multi-functional design approach simplifies the device complexity and reduces manufacturing and assembly costs.
3Adaptability or versatility
If both light source component and driving power supply component are present, then the lighting device functions properly, but heat generation increases and reliability decreases
Solution Approach 1:
The patent segments the internal space of the lamp housing into distinct functional zones: a light source component cavity housinging the LED module, a driver component cavity housinging the power supply, and a heat dissipation cavity. This spatial segmentation allows each component to operate in its own optimized environment, improving heat management and overall reliability.
Solution Approach 2:
The heat dissipation cavity acts as an intermediary thermal management zone between the heat-generating components (light source and driver) and the external environment. This intermediate space facilitates controlled heat transfer and dissipation, protecting the components from excessive temperature while maintaining device 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 design achieves rapid and effective heat dissipation, reducing the temperature of the light source and power supply components by over 15°C, improving reliability and service life while minimizing weight and cost.
Implementation Method 1
a passage located in the receiving chamber, the passage passes through the housing and the optical element, an interior of the lighting device is communicated with an exterior of the lighting device by the passage
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention discloses a lighting device, including: a housing, an optical element connected with the housing, a receiving chamber formed by engaging the housing with the optical element, and a light source component and a driving power supply component both located in the receiving chamber. The lighting device further includes a passage located in the receiving chamber, the passage passes through the housing and the optical element, and an interior of the lighting device is communicated with an exterior of the lighting device by the passage. Heat generated by the light source component in the lighting device can be effectively and quickly dissipated through the above-mentioned passage, without the need of additionally disposing a heat dissipation component, thereby reducing the cost and the weight of the lighting device.