Light Fixture Thermal Control for Condensation and Cold Stress
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Solution Overview
Problem
Existing light fixtures for scenic and architectural contexts face challenges in maintaining reliable operation across a wide range of external thermal conditions, from -40°C to +45°C, which can lead to thermal stress and condensation issues affecting the functionality of optical elements.
Innovation Solution
A light fixture with a temperature control assembly that includes independently controllable heating and ventilating elements, managed by a temperature control device and sensors, to maintain optimal temperature conditions within the fixture and its components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a ventilation system is provided for temperature control, then excess heat removal is improved, but the system cannot handle excessively low temperatures and thermal stress
Solution Approach 1:
The temperature control assembly is designed to perform multiple functions: it can both cool (via the ventilation system with fan) and heat (via the heating element) the internal environment. This multi-functional design allows the same assembly to handle both high temperature scenarios (excess heat removal) and low temperature scenarios (thermal stress from cold), thereby improving adaptability to various thermal conditions without requiring separate systems
2Reliability
If independent heating and ventilating elements are added, then temperature control reliability is improved, but device complexity increases
Solution Approach 1:
The heating element and ventilating system are merged into a single integrated temperature control assembly rather than being separate systems. This combination allows both heating and cooling functions to be coordinated through a unified structure and control mechanism, improving reliability through better integration while minimizing the increase in overall device complexity through shared components and housing
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 ensures reliable operation of the light fixture across extreme thermal conditions by maintaining optimal temperatures, preventing condensation, and ensuring the functionality of optical elements.
Implementation Method 1
the at least one first temperature control module being provided with a heating element
Implementation Method 2
the at least one first temperature control module being provided with a ventilating element
Data Source
AI summary
A light fixture includes a head housing a source assembly configured to emit a light beam and a support assembly configured to support the head. The light fixture further includes a temperature control assembly configured to control the temperature inside the head and/or the support assembly. The temperature control assembly includes at least one temperature control device; at least one first temperature sensor; and at least one first temperature control module housed in the head and/or in the support assembly and regulated by the temperature control device on the basis of data coming from the at least one first temperature sensor. The at least one first temperature control module is provided with a heating element and a ventilating element which are independently controllable by the temperature control device.