Spotlight Heat Dissipation with Flexible Conductor
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Solution Overview
Problem
Conventional spotlights face challenges in heat dissipation and efficiency, particularly with halogen lamps, which result in high power consumption and environmental heating, while discharge lamps require precise cooling and are less fault-tolerant, limiting the ability to adjust the light beam angle without compromising cooling airflow.
Innovation Solution
A spotlight design featuring a mechanical support, a heat absorption element thermally coupled with the light source, a flexible heat conducting element allowing relative movement, and a heat dissipation element, enabling effective heat transfer and adjustable light beam angle without disturbing the cooling airflow, using a movable light source and a fixed heat dissipation element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If halogen light sources are used in spotlights, then illumination intensity is improved, but power consumption increases and heat dissipation becomes problematic
Solution Approach 1:
The patent transitions from halogen light sources to LED light sources, fundamentally changing the illumination parameter. LEDs provide comparable or superior illumination intensity while consuming significantly less power and generating less heat, directly resolving the contradiction between illumination intensity and power consumption
Solution Approach 2:
The patent replaces the thermal-based halogen illumination system with an electroluminescent LED system. This substitution eliminates the need for extensive cooling mechanisms required by halogen lamps, reducing both power consumption and heat dissipation requirements while maintaining high illumination intensity
2Adaptability or versatility
If the light source is moved relative to the front lens to adjust the angle of radiation, then adaptability is improved, but heat dissipation becomes more difficult
Solution Approach 1:
The patent divides the spotlight into functionally independent segments: the LED light source assembly mounted on a movable sled and the fixed front lens. This segmentation allows the light source to move for angle adjustment while the heat dissipation structure remains stationary and optimized for thermal management
Solution Approach 2:
The patent extracts the heat dissipation function from the movable light source assembly and assigns it to a separate, stationary heat sink structure. This extraction allows the light source to move freely for angle adjustment while the heat sink remains in a fixed position optimized for thermal dissipation
3Use of energy by moving object
If discharge lamps are used, then illumination efficiency is improved, but cooling requirements increase and fault tolerance decreases
Solution Approach 1:
The patent employs LEDs, which are solid-state light sources with no fragile glass envelopes or filaments. While individual LEDs have limited lifetimes, their solid-state construction makes them highly fault-tolerant and resistant to mechanical shock, vibration, and thermal stress, significantly improving reliability compared to discharge lamps
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
This design allows for continuous adjustment of the light beam angle and effective heat dissipation, reducing power consumption and environmental impact, while maintaining efficient cooling and preventing overheating, even when the light source is moved within the spotlight.
Implementation Method 1
a flexible heat conducting element, which is coupled on a first end to the heat absorption element and on a second end to the heat dissipation element and wherein the flexible heat conducting element is configured to conduct heat from the heat absorption element, to the heat dissipation element
Implementation Method 2
a light source which is arranged in a housing of the spotlight and may be movable relative to a fixedly arranged front lens at an open end of the housing of the spotlight
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3C
AI summary
Embodiments relate to a illumination apparatus (110) comprising a mechanical support (102) a light source (105), a heat absorption element (107), thermally coupled and mechanically connected with the light source (105), a heat dissipation element (109), which is mechanically connected within the mechanical support (102). Furthermore, the illumination apparatus (110) comprises the flexible heat conducting element (112) which is coupled on a first end (112a) to the heat absorption element (107) and on a second end (112b) to the heat dissipation element (109), and wherein the flexible heat conducting element is configured to conduct heat from the heat absorption element (107) to the heat dissipation element (109) and to allow a relative movement between the heat absorption element (107) and the heat dissipation element (109), and a bearing (115) to support the light source (105) so that the light source is movable relative to the mechanical support (102).