Fireproof LED Lamp with Expanding Thermal Barrier
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Solution Overview
Problem
Existing embedded ceiling lamps, particularly LED lamps, are prone to catching fire due to combustible ceiling materials and lack effective fireproof and thermal insulation features, leading to potential ignition of surrounding materials and ineffective fire containment.
Innovation Solution
A fireproof LED lamp design incorporating a fireproof expansion unit made of fireproof material on the LED circuit board and lamp ring, which expands to cover the circuit board and gaps during high temperatures, providing thermal insulation and preventing flame spread, along with a rapid assembly mechanism for the face and lamp rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a through hole is provided in the lamp shade for heat dissipating, then heat dissipation is enabled, but the heat accumulates in a confined space and combustible materials may be ignited due to overheating
Solution Approach 1:
The patent changes the physical and chemical parameters of the protective cover material by using fireproof expansion material that undergoes phase change at high temperatures. The material transitions from a compact state to an expanded foam state, changing its volume, density, and thermal insulation properties to prevent ignition while maintaining heat dissipation
Solution Approach 2:
The fireproof expansion material utilizes phase transition from solid compact form to expanded foam form when exposed to high temperatures. This phase change allows the material to expand and fill gaps, creating an insulating barrier that prevents flame spread while the through-hole structure maintains thermal management
2Reliability
If a fireproof sheet metal is provided to protect LED lamp and circuit board, then fireproof function is achieved, but thermal insulation function is lacking and surrounding materials are easy to be ignited
Solution Approach 1:
The patent employs composite material structure combining fireproof expansion material with foam layer. The fireproof expansion material provides structural protection and flame resistance, while the foam layer provides thermal insulation. This composite approach addresses both fireproofing and thermal insulation requirements simultaneously
Solution Approach 2:
The foam layer acts as an intermediary between the fireproof expansion material and surrounding combustible materials. It provides thermal insulation to prevent heat transfer to surrounding materials, while the fireproof expansion material provides the primary fire barrier
3Ease of manufacture
If gaps exist between the lamp and ceiling or in the fireproof component, then assembly is simplified, but flames can go out of gaps to spread fire
Solution Approach 1:
The fireproof expansion material is designed to be dynamic in response to temperature changes. At normal temperatures, it maintains a compact form allowing simple assembly with gaps. When exposed to fire temperatures, it automatically expands to fill gaps and seal openings, dynamically adapting to maintain fire containment
Solution Approach 2:
The fireproof expansion material is pre-installed in positions where it can expand to seal gaps. The material is prepared in advance to undergo expansion when needed, creating a preliminary barrier that activates automatically upon temperature rise to prevent flame spread through gaps
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 fireproof expansion unit effectively prevents the LED circuit board from burning and flame spread, while offering heat insulation, ensuring the lamp remains cool on the surface and secure, even at high temperatures, thus enhancing fire safety and preventing the ignition of surrounding materials.
Implementation Method 1
a fireproof expansion unit made of a fireproof expansion material is provided on the front and/or on the side of the LED circuit board. Using the lamp structure of the present invention, the fireproof expansion unit will expands to cover the surface of the LED circuit board and gaps around the LED circuit board in case of fire
Data Source
AI summary
A fireproof LED lamp is provided by the present invention, including a LED circuit board (1), a LED lens (2) and a lamp ring (3) provided with a side wall, wherein the LED circuit board (1) is provided with a LED light (4), the LED circuit board (1), LED light (4) and LED lens (2) are placed in the lamp ring (3), a radiator (5) is provided behind the LED circuit board (1), and a fireproof expansion unit (6) made of a fireproof expansion material is provided on the front and/or on the side of the LED circuit board (1). In case of fire, the fireproof expansion unit will expands to cover the surface of the LED circuit board (1) and gaps around the LED circuit board to prevent the LED circuit board (1) being burnt, and to prevent a flame go out of the gaps of the lamp to effectively prevent the spread of fire.