Light-emitting Bulb with Lateral Convection Openings
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Solution Overview
Problem
Light-emitting bulbs face issues with heat dissipation, which can lead to increased temperature, affecting light intensity and lifetime, necessitating improved heat management solutions.
Innovation Solution
The design incorporates a bulb cover with a chamber and second openings on the lateral portion to facilitate heat dissipation through convection, along with a shielding structure that can adjust light intensity and distribution by shielding or unshielding these openings, and a sealing member to enhance thermal efficiency and reduce glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light-emitting bulb operates, then light is generated, but heat accumulates and temperature increases
Solution Approach 1:
The patent converts the harmful heat generated by light-emitting devices into a beneficial cooling mechanism by designing a cover with convection openings that allow hot air to escape and cold air to enter, transforming waste heat into a driving force for natural convection cooling
Solution Approach 2:
The cover is segmented with multiple openings distributed across its surface, dividing the heat dissipation function into multiple channels that collectively improve thermal management while maintaining structural integrity and light distribution
2Temperature
If openings are provided in the cover for heat dissipation, then temperature is reduced, but light distribution is affected
Solution Approach 1:
The patent applies local quality by positioning openings in specific locations on the cover where they optimize both heat dissipation and light distribution, ensuring that critical areas maintain appropriate light intensity while allowing effective thermal ventilation
3Illumination intensity
If a shielding structure is added to control light distribution, then light intensity is improved, but device complexity increases
Solution Approach 1:
The shielding structure is designed to perform multiple functions simultaneously: it controls light distribution and intensity while also serving as part of the thermal management system, thereby reducing overall device complexity through functional integration
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 effectively reduces the temperature of light-emitting devices, improves light intensity and distribution, and enhances thermal efficiency while addressing safety and glare concerns.
Implementation Method 1
a bulb cover with a chamber and second openings on the lateral portion to facilitate heat dissipation through convection
Data Source
AI summary
This disclosure discloses a light-emitting bulb. The light-emitting bulb comprises: a first light-emitting device comprising a first light-emitting unit and a first cover covering the light-emitting unit; a second cover comprising a bottom end and a lateral portion surrounding the first light-emitting device; a first opening provided in the bottom end of the second cover; and a second opening provided in the lateral portion of the second cover.