Multifunctional LED Bulb Hollow Stem Heat Dissipation
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Solution Overview
Problem
Existing LED bulbs have poor light transmission performance and emit light in a different mode compared to traditional incandescent and fluorescent bulbs, resulting in reduced decorative performance and inefficient light distribution due to their complex structure and limited light-emitting angles.
Innovation Solution
A multifunctional LED bulb design featuring a lamp base, light-transmitting bulb shell, and LED light-emitting strips that emit light in all directions, with a hollow stem for heat dissipation and a conical LED light-emitting strip assembly, allowing for even distribution of LEDs and improved light transmission, using high-thermal-conductivity gas for efficient heat management and polytetrafluoroethylene sleeves for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If LEDs are arranged in staggered and overlapped modes to save internal space, then the number of LEDs can be reduced, but light transmission performance and light-emitting effect deteriorate due to refraction and reflection caused by mutual disturbance
Solution Approach 1:
The patent divides the bulb into distinct functional zones: a light-emitting area with LEDs arranged in a specific pattern, a light-guiding area with optical elements, and a heat dissipation area. This segmentation allows LEDs to be arranged without overlap while maintaining good light transmission performance.
Solution Approach 2:
The patent arranges LEDs in a three-dimensional configuration within the bulb, utilizing vertical and radial dimensions rather than just planar arrangement. This allows for better space utilization without causing light interference, as LEDs are positioned at different spatial levels and angles.
2Illumination intensity
If a large number of LEDs are used to meet high brightness requirements, then illumination intensity improves, but device complexity increases and internal space is consumed
Solution Approach 1:
The patent combines multiple functions into integrated components: the support structure serves both mechanical support and heat dissipation functions, the optical elements guide light while also structuring the light-emitting pattern, and the bulb shell provides both containment and additional heat dissipation. This merging reduces the number of separate components needed.
Solution Approach 2:
The patent designs components with multiple functions: the heat dissipation structure serves both thermal management and mechanical support, the optical guiding elements structure light while providing structural framework, and the bulb shell provides containment, heat dissipation, and aesthetic functions simultaneously.
3Ease of manufacture
If existing LED bulbs use standard light-emitting spherical surfaces and lamp bases, then manufacturing ease improves, but the shape and internal structure become quite different from ordinary incandescent bulbs, reducing adaptability
Solution Approach 1:
The patent copies the external shape, size, and structural form of traditional incandescent bulbs, including the bulb shape, base type, and overall dimensions. This allows LED bulbs to replace incandescent bulbs in existing fixtures without modification while maintaining aesthetic consistency.
Solution Approach 2:
Instead of making LEDs conform to standard bulb shapes, the patent inverts the approach by making the bulb structure conform to traditional designs while housing modern LED technology internally. The internal LED structure is adapted to fit the external traditional bulb form factor.
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 multifunctional LED bulb achieves efficient light distribution, energy savings, and a heat dissipation effect similar to incandescent bulbs, with improved light transmission and decorative performance, capable of replacing traditional bulbs with enhanced efficiency and longevity.
Implementation Method 1
a hollow stem for heat dissipation and a conical LED light-emitting strip assembly, allowing for even distribution of LEDs and improved light transmission, using high-thermal-conductivity gas for efficient heat management
Data Source
AI summary
A multifunctional LED bulb includes a lamp base, a light-transmitting bulb shell, a driving power supply, electric lead wires, a stem, at least one LED light source and a support column, wherein the tail of the light-transmitting bulb shell is fixedly connected with the lamp base; the driving power supply is located in the lamp base, and the LED light sources and the support column are wrapped in an inner cavity of the light-transmitting bulb shell; the light-transmitting bulb shell is sealed by the lower portion of the stem which is of a hollow structure, an exhaust pipe is arranged in the stem, and a hole is formed in the joint of the upper end of the exhaust pipe and the stem. The multifunctional LED bulb looks like ordinary incandescent bulbs, and is environmentally friendly, good in heat dissipation and light-emitting effect.