Lighting Apparatus Fireproof Container Surge Protection
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Solution Overview
Problem
Designing a lighting apparatus that meets safety standards, such as fireproof requirements, while providing flexible current output and being cost-effective is challenging due to the need for expensive metal boxes to isolate driver circuits, especially when consumed power exceeds thresholds.
Innovation Solution
A lighting apparatus with a surge voltage protector, multiple rectifiers, DC-DC converters, filters, constant current sources, PWM generators, and dimmer controllers, all housed in a fireproof container made of non-metallic materials, which includes thermal grease for heat management and temperature sensors to prevent overheating, allowing for flexible current output without the need for expensive metal enclosures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal boxes are used to isolate driver circuits for safety protection, then safety standards are met, but cost increases significantly
Solution Approach 1:
The patent replaces the traditional metal enclosure (mechanical protection system) with a non-metallic fireproof container combined with electronic protection circuits. The surge voltage protector, rectifiers, and other protective components are integrated directly into the non-metallic housing, eliminating the need for expensive metal boxes while maintaining safety functionality.
Solution Approach 2:
The patent uses composite material construction for the container housing, combining fireproof non-metallic materials with integrated protective circuits. This composite approach allows the housing to provide both mechanical protection and electrical isolation without requiring traditional metal enclosures, thereby reducing cost while maintaining safety standards.
2Power
If power output is increased to provide better illumination, then lighting performance improves, but safety risks and cost increase
Solution Approach 1:
The patent incorporates surge voltage protectors and other protective circuits before the high-power lighting components to prevent damage from voltage spikes and electrical surges. This preemptive protection allows the system to handle high power output safely by cushioning against potential electrical stress before it can cause damage.
Solution Approach 2:
The patent introduces intermediary protective components (surge voltage protectors, rectifiers with isolation transformers) between the power input and the high-power lighting elements. These intermediaries act as buffers that manage and regulate electrical stress, enabling high power output while maintaining safety through controlled energy transfer.
3Reliability
If multiple protective mechanisms are added for high power consumption, then safety is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple protective functions into integrated circuits and combined components. The surge voltage protector, rectifiers, and isolation transformers are integrated into a single non-metallic housing, reducing the number of separate protective components needed. This consolidation maintains comprehensive protection while simplifying the overall device architecture.
Solution Approach 2:
The non-metallic container housing serves multiple functions simultaneously: it provides mechanical protection, electrical isolation, fire resistance, and housing for multiple protective circuits. This multi-functional design reduces the need for separate protective mechanisms, thereby simplifying the overall device while maintaining comprehensive safety coverage.
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 enables a cost-effective, safe, and flexible current output lighting system that meets safety standards without the high cost of metal enclosures, ensuring efficient energy use and reliable operation while providing adjustable light parameters and intensity.
Implementation Method 1
a surge voltage protector, a first rectifier, a first DC-DC converter, a first DC filter, a first constant current source, a second rectifier, a second DC-DC converter, a second DC filter, a second constant current source
Implementation Method 2
The first rectifier includes a first bridge circuit to covert the AC power to a first DC power
Implementation Method 3
The first DC-DC converter converts the first DC power to a second DC power
Implementation Method 4
The first DC filter filters the second DC power to a third DC power
Implementation Method 5
a first constant current source, a second constant current source
Implementation Method 6
a first PWM generator, a second PWM generator
Implementation Method 7
which includes thermal grease for heat management
Implementation Method 8
and temperature sensors to prevent overheating
Data Source
AI summary
A lighting apparatus includes a surge voltage protector, a first rectifier, a first DC-DC converter, a first DC filter, a first constant current source, a second rectifier, a second DC-DC converter, a second DC filter, a second constant current source, a first PWM generator, a second PWM generator, a dimmer controller, a first light source and a second light source. The surge voltage protector is coupled to an external power for relaying an AC power. When there is a surge voltage is detected, the surge voltage protector disable routing the AC power. There are two or more paths of power circuits each generating a limited power. These power circuits are placed in the same container to simplify the overall design.