Radial COB LED Lamp with Integrated Driver
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Solution Overview
Problem
LED light fixtures have poorer emission characteristics, reduced lighting quality, and larger size due to the need for a separate driver module and cooling elements, leading to increased costs and reduced service life.
Innovation Solution
A compact LED light fixture design where the driver module is integrated within a glass bulb along with the lighting elements, eliminating the need for external space and providing a concealed, aesthetically pleasing form factor, using materials like quartz or tempered glass for efficient heat dissipation and radiation distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the driver module is placed externally in conventional LED lamps, then the lighting quality and emission characteristics improve, but the size and complexity of the LED light fixture increase
Solution Approach 1:
The driver module is integrated inside the glass bulb together with the lighting elements, merging previously separate components into a single compact assembly. This eliminates the need for external driver housing and reduces overall fixture size while maintaining lighting quality through optimized internal arrangement of components.
Solution Approach 2:
The driver module is nested within the glass bulb volume, which itself is contained within the lamp housing. This nested arrangement allows the driver module to occupy space that would otherwise be unused, achieving compact integration without increasing the external dimensions of the lamp.
2Reliability
If separate cooling elements are added to the driver module, then the service life and reliability improve, but the complexity and cost of the LED light fixture increase
Solution Approach 1:
The glass bulb serves multiple functions simultaneously: it acts as the envelope for the lighting elements, provides structural support, enables heat dissipation through its material properties, and houses the driver module. This multi-functionality eliminates the need for separate cooling elements and reduces overall device complexity.
Solution Approach 2:
The glass bulb material itself provides the cooling function through its thermal conductivity, eliminating the need for additional active cooling components. The structure serves its own cooling needs through passive heat transfer to the surrounding environment.
3Volume of moving object
If the driver module is integrated within the glass bulb, then the size and cost are reduced, but the mounting precision and adjustment of lighting elements become more critical
Solution Approach 1:
The lighting elements and driver module are pre-assembled and positioned within the glass bulb during the manufacturing process, ensuring precise mounting before the bulb is sealed. This preliminary positioning eliminates the need for field adjustment and ensures optimal alignment for lighting quality.
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 solution results in a cost-effective, compact LED light fixture with improved lighting quality and extended service life by integrating the driver module within the glass bulb, enhancing thermal conductivity and radiation efficiency while maintaining a conventional halogen lamp-like appearance.
Implementation Method 1
The glass bulb can have the shape of a glass bulb of a bi-pin halogen lamp with a base on one side, such as for example a so-called G4 or a G9 halogen lamp, or a halogen lamp with a base on two sides, such as for example a R7 halogen lamp
Implementation Method 2
The lighting elements are arranged radially around the driver module. The lighting element can be a light module, a light-emitting diode, in particular with a housing and/or an integrated lens, or one single, inorganic or organic light-emitting diode chip
Data Source
AI summary
An LED light fixture includes a glass bulb. In the interior of the glass bulb is a driver module and a plurality of lighting elements. The glass bulb completely surrounds the lighting elements radially. The lighting elements are arranged radially around the driver module. The lighting elements may be LED filaments or individual light-emitting diode chips.