Stage Light Fixture External Heat Dissipation via Support Arm Blower
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Solution Overview
Problem
Existing stage light fixtures face challenges with inefficient heat dissipation due to passive natural convection methods, leading to uneven heat distribution and potential overheating of light sources and effect-forming modules.
Innovation Solution
A stage light fixture with a light head featuring external active heat dissipation, utilizing at least one blower in the support arm to circulate air around the light head, ensuring even heat distribution and effective cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If passive natural convection heat dissipation is used, then the light head structure remains simple and enclosed, but heat dissipation efficiency is low and heat distribution is uneven
Solution Approach 1:
The patent applies pneumatic principles by introducing a blower device that forces air flow through the light head. The blower creates forced convection current that actively transports heat away from the light source and effect modules, transforming the passive natural convection system into an active pneumatic cooling system. This resolves the contradiction by maintaining structural simplicity while dramatically improving heat dissipation efficiency through controlled air flow.
Solution Approach 2:
The patent changes the heat dissipation parameter from passive natural convection to active forced convection by introducing the blower. This parameter change transforms the cooling mechanism fundamentally, enabling uniform heat distribution across all components while maintaining the enclosed light head structure. The controlled air flow rate and direction are adjusted to optimize cooling efficiency without complicating the overall structure.
2Reliability
If the light head is tightly enclosed for dry running environment, then protection is improved, but heat accumulation occurs and service life is shortened
Solution Approach 1:
The blower creates a controlled pneumatic environment that actively removes heat while maintaining the enclosed structure. The forced air flow through designated passages provides continuous cooling to the light source and effect modules, preventing heat accumulation that would otherwise shorten service life. The enclosed structure remains intact for environmental protection while the pneumatic system manages thermal conditions.
Solution Approach 2:
The patent introduces air flow as an intermediary cooling medium that transfers heat from the enclosed components to the external environment. The blower-driven air current acts as a mediator between the enclosed light head interior and exterior, carrying away excessive heat while allowing the light head to remain tightly enclosed for environmental protection. This intermediary cooling mechanism extends component service life without compromising structural integrity.
3Device complexity
If side wall heat exchange is used, then the light head remains enclosed, but heat distribution on side wall is uneven causing local overheating
Solution Approach 1:
The blower generates forced convection air flow that uniformly distributes cooling across all side walls of the light head. The controlled air current passes through or along all heating surfaces, ensuring even heat removal from the light source, effect modules, and side walls. This pneumatic cooling approach maintains the enclosed structure while achieving uniform temperature distribution, eliminating local overheating problems.
Solution Approach 2:
The blower provides continuous forced air flow that constantly refreshes the cooling medium across all surfaces. This continuous pneumatic action ensures sustained uniform heat removal from all components and side walls, preventing localized heat accumulation. The uninterrupted air flow maintains consistent temperature distribution throughout the enclosed light head structure.
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 active heat dissipation method significantly improves the cooling efficiency of the light head, preventing overheating, extending the service life of components, and maintaining optimal performance.
Implementation Method 1
at least one first blower is provided in the support arm to blow the air around the light head to flow and thus cool the outside of the light head
Implementation Method 2
heat in the side wall is dissipated heat by natural convection to the outside in such method
Data Source
AI summary
A stage light fixture with a light head having external heat dissipation includes a light head for projecting light beams, which is formed as a cylinder with a light outlet which is covered by a light emitting lens, and a support arm for supporting the light head to rotate via a pivoting shaft. At least one first blower is provided in the support arm, which is configured to blow air around the light head to flow and thus cool the light head. According to the present invention, active heat dissipation is formed and enclosed interior of the cylinder is simultaneously ensured without damage to the existed structure of the light head. The light head thus can be effectively cooled in a way that the air around the light head is blown to flow and promptly entrain the heat on the side wall thereof via the first blower.