Movable Light Source Holder with Spring Coupling
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Solution Overview
Problem
Existing holding devices for light sources are complex and costly to produce, requiring high mechanical component tolerances, and often suffer from poor thermal contact due to inaccurate positioning, which impairs heat transfer and thermal performance.
Innovation Solution
A holding device with a movable second portion relative to a first portion, allowing for clamping of the light source between them, which adjusts to improve thermal contact and compensate for mechanical tolerances and heat-induced deformations, using a spring-coupling mechanism and adjustable clamping force to ensure reliable positioning and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing holding devices with fixed components are used, then the structure is simple, but the thermal contact accuracy is poor and positioning precision deteriorates due to mechanical tolerances and heat-induced deformations
Solution Approach 1:
The holding device incorporates a movable second portion that can adjust its position relative to the first portion. This dynamic adjustment capability allows the device to compensate for mechanical tolerances and heat-induced deformations, maintaining accurate thermal contact between the light source and holding device during operation without requiring overly complex fixed positioning mechanisms
Solution Approach 2:
The patent employs a spring-coupling mechanism that allows the second portion to move along the common plane, changing the positional parameter dynamically. This parameter change enables the holding device to adapt to dimensional differences and maintain optimal thermal contact pressure, resolving the contradiction between positioning accuracy and structural simplicity
2Manufacturing precision
If high mechanical component tolerances are required for accurate positioning, then thermal contact accuracy is improved, but manufacturing cost and complexity increase
Solution Approach 1:
By making the second portion movable rather than fixed, the device compensates for manufacturing tolerances through dynamic adjustment during assembly and operation. This eliminates the need for high-precision fixed components, making the device easier to manufacture while maintaining accurate thermal contact
Solution Approach 2:
The spring-coupling mechanism enables the holding device to self-adjust to dimensional variations in the light source and holding device components. This self-compensating feature reduces the need for precision manufacturing, allowing standard tolerances to be used while still achieving accurate thermal contact
3Temperature
If fixed holding structures are used, then the device is simple to manufacture, but thermal performance deteriorates due to poor thermal contact
Solution Approach 1:
The movable second portion allows the holding structure to adapt dynamically to thermal expansion and contraction of the light source during operation. This maintains consistent thermal contact pressure and improves thermal performance without requiring complex active control systems
Solution Approach 2:
The spring-coupling mechanism changes the contact pressure parameter dynamically as the light source heats up and expands. This automatic adjustment maintains optimal thermal contact throughout the operating temperature range, improving thermal performance while keeping the structure relatively simple
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 provides a simpler, cost-effective holding device with improved thermal performance by maintaining accurate positioning of the light source, reducing the risk of thermal expansion-induced failures and allowing for flexible adjustment to accommodate different light source dimensions.
Implementation Method 1
the second portion is movable relative to the first portion from a first position, before insertion of the light source, in which the first portion and the second portion form a slit for receiving the light source, and to at least a second position, after insertion of the light source, in which the second portion clamps the light source in the slit against the first portion
Implementation Method 2
A poor thermal contact between the light source and the holding device may impair the heat transfer between the light source and the holding device and thereby result in a poor thermal performance
Data Source
AI summary
The present invention relates to a holding device (100) for a light source (200), comprising a first portion (110) and a second portion (120). The first portion and the second portion extend at least partly in a common plane. The second portion is movable relative to the first portion from a first position, before insertion of the light source, in which the first portion and the second portion form a slit (130) for receiving the light source, and to a least a second position, after insertion of the light source, in which the second portion clamps the light source in the slit. Further, a lighting assembly and a display unit comprising such a holding device and a light source is disclosed. The holding device comprises fewer parts and is easier to manufacture as compared to prior art devices.