Omnidirectional LED Light Bulb Heat Sink Housing
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Solution Overview
Problem
Current LED light bulbs struggle to achieve omnidirectional light emission with a simple structure, convenient installation, and effective heat dissipation, often resulting in uneven luminous intensity and short service life due to complex designs and inadequate heat management.
Innovation Solution
The design features a heat sink housing with a protruded platform, an integrated column-shaped LED light source with a polygonal prism head, and an annular reflecting surface, which allows for omnidirectional light emission by distributing LED chips on the top and lateral surfaces and utilizing a silica-gel lens for packaging, along with a heat sink housing that facilitates easy installation and efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a plane type LED integrated module light source is implanted in the bulb, then the structure is simple, but omnidirectional light-emitting cannot be realized because the luminous surface is narrow
Solution Approach 1:
The patent transitions from a plane type LED module to a column-shaped LED light source with LED chips arranged on both the top and lateral surfaces. This three-dimensional configuration expands the luminous surface from two-dimensional to three-dimensional space, enabling light emission in multiple directions simultaneously and achieving omnidirectional illumination while maintaining structural simplicity.
2Illumination intensity
If an upward astigmatism lens is arranged on the surrounding LED, then the luminous intensity distribution meets the standard requirement, but it easily brings a phenomenon of inconsistency of light color temperature and thus causes visual fatigue
Solution Approach 1:
The patent uses a transparent packaging frame that uniformly encloses the LED chips without introducing refractive elements. This homogeneous transparent structure allows light to pass through without refraction, maintaining consistent color temperature across all light beams while still achieving the required luminous intensity distribution through the geometric arrangement of LED chips on the column structure.
3Illumination intensity
If a complicated structure with too many contact surfaces is used, then large light-emitting angles can be realized, but it is difficult to be manufactured and has poor heat dissipating effect and short service life
Solution Approach 1:
The patent segments the LED light source into distinct functional parts: LED chips mounted on a circuit board, assembled into a column-shaped housing with lateral and top surfaces. This segmentation allows each component to be manufactured and tested separately before final assembly, simplifying the manufacturing process while achieving large light-emitting angles through the three-dimensional chip arrangement.
Solution Approach 2:
The patent extracts and eliminates unnecessary contact surfaces and complex internal structures from the design. By using a straightforward column-shaped housing with LED chips directly mounted on the lateral and top surfaces, the design reduces the number of interfaces and contact points, thereby simplifying manufacturing while maintaining effective heat dissipation paths and achieving wide light emission angles.
4Device complexity
If LED chips are arranged only on the top surface, then the structure is simple, but omnidirectional light-emitting cannot be achieved
Solution Approach 1:
The patent adds the lateral surfaces to the top surface for LED chip arrangement, transitioning from a single-surface (top only) to multi-surface (top and lateral) configuration. This dimensional expansion of the luminous surface allows light to be emitted from multiple orientations simultaneously, achieving true omnidirectional illumination while keeping the column-shaped structure inherently simple and easy to manufacture.
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 configuration ensures uniform luminous intensity distribution, enhances heat dissipation, and extends the service life of the LED light bulb while maintaining a simple structure, achieving the desired omnidirectional light emission and reducing visual fatigue.
Implementation Method 1
an annular reflecting surface is arranged on the rear portion of the head of the frame
Implementation Method 2
a heat sink housing with a protruded platform... facilitates easy installation and efficient heat dissipation
Data Source
AI summary
An omnidirectional LED light bulb comprising a lamp base (1), a heat sink housing (2), a circuit board (5), an LED light source (3) and a bulb (4) is provided. The heat sink housing (2) is provided with a protruded platform (6) on which the light source (3) in a column shape of polygonal prism head is arranged. LED chips (9) are arranged on the top and lateral surfaces of the head, and an annular reflecting surface (10) is arranged on the rear portion of the head. The omnidirectional LED light bulb has the advantages of high rear light flux, omnidirectional luminescence and uniform illumination.