Elastic Polymer Bearings for OLED Vibration Damping
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Solution Overview
Problem
Conventional flat lamps, particularly organic light-emitting diodes (OLEDs) used in motor vehicle headlights, are prone to breaking due to vibration stress during assembly or installation, as well as environmental influences, due to their fragile nature and the risk of glass breakage.
Innovation Solution
A vibration and vibration-damping lamp arrangement featuring a bearing device with a holder having elastic polymer bearings and fastening elements that secure the OLED, allowing for stress-free mounting and compensation of warping, while providing defined screwing positions and torques, thereby reducing the risk of breakage and ensuring secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rigid mounting methods are used to secure the OLED, then the mounting is secure and stable, but the OLED is prone to breaking due to vibration stress and assembly forces
Solution Approach 1:
The patent applies beforehand cushioning by introducing elastic polymer bearings between the rigid holder and the OLED substrate. These bearings are pre-installed in recesses of the holder to cushion and absorb vibration stresses and assembly forces before they reach the fragile OLED, preventing breakage while maintaining secure mounting.
Solution Approach 2:
The patent uses an intermediary approach by inserting elastic polymer bearings as a mediating element between the rigid mounting structure and the fragile OLED. This intermediary component decouples the rigid holder from the OLED substrate, allowing the holder to remain stable while the bearings absorb mechanical stresses that would otherwise damage the OLED.
2Manufacturing precision
If rigid fastening elements are used to secure the OLED, then the mounting position is precise and defined, but stress is applied to the OLED during mounting causing potential damage
Solution Approach 1:
The elastic polymer bearings are pre-installed in the holder's recesses to cushion mounting stresses before the OLED is attached. This allows fastening elements to be positioned precisely for accurate mounting while the bearings absorb the stresses that would otherwise damage the OLED during the fastening process.
Solution Approach 2:
The patent applies parameter changes by using elastic polymer materials that can deform under mounting stress and then recover. The bearings change their physical state from rigid to flexible during mounting, absorbing stress, then return to their original form, maintaining precise mounting positions without transmitting damaging forces to the OLED.
3Stability of the object's composition
If the holder is rigidly connected to the substrate, then the mounting is stable and secure, but vibrations are transmitted to the OLED causing breakage risk
Solution Approach 1:
The elastic polymer bearings serve as an intermediary element between the rigid holder and the OLED substrate. They allow the holder to remain stably connected to the substrate while the bearings absorb and dampen vibrations, preventing them from being transmitted to the fragile OLED and reducing breakage risk.
Solution Approach 2:
The patent uses parameter changes by employing materials with different rigidity parameters. The holder and substrate maintain rigid connections for stability, while the elastic polymer bearings provide flexible connections that change their stiffness parameter in response to vibration frequencies, absorbing vibrational energy and preventing its transmission to the OLED.
4Reliability
If stress-free mounting is implemented using elastic bearings, then the OLED is protected from damage, but the mounting structure becomes more complex
Solution Approach 1:
The patent uses flexible polymer bearings as thin-walled elastic elements that provide stress-free mounting. These flexible bearings protect the OLED from mounting stresses while maintaining a relatively simple overall structure. The bearings can be molded into the holder as integrated components, minimizing additional complexity while providing effective protection.
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 effectively inhibits vibrations in multiple directions, reduces stress on the OLED, and allows for cost-effective and precise production, ensuring the OLED is securely fastened and protected from damage during installation and operation.
Implementation Method 1
A vibration and vibration-damping lamp arrangement featuring a bearing device with a holder having elastic polymer bearings
Implementation Method 2
each polymer bearing has a through-opening arranged perpendicular to the plane of the support surface, wherein the bearing device comprises fastening elements which are guided through the through-openings of the polymer bearings
Data Source
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AI summary
The invention relates to a storage device (101, 201) for a planar light (102), comprising a holder (104, 204) for attaching at least one planar light (102), wherein the holder (104, 204) has a support surface (105, 205) for the at least one planar light (102), wherein the holder (104, 204) has at least two spaced-apart retaining elements (106) formed laterally on the support surface or arranged as an add-on part, which form a receptacle (107), wherein each receptacle (107) receives a polymer bearing (108) made of an elastic polymer material, wherein each polymer bearing (108) has a through-opening (108a) arranged perpendicular to the plane of the support surface (105, 205), wherein the storage device (101, 201) comprises fastening elements (109) which are for The bearing device (101, 201) is fastened to a substrate (110) by means of the through-openings (108a) of the polymer bearings (108).