Comb-Lamella Damper Structure for Leak-Free Motion Damping
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Solution Overview
Problem
Existing damper devices for controlling relative movement between components are complex, prone to leakage, and have temperature-dependent damping behavior due to their reliance on fluid media, making them costly and inefficient.
Innovation Solution
A damper device with a lamella or rib structure and a comb structure that converts kinetic energy into deformation work through elastic deformation, eliminating the need for fluid displacement and allowing for adjustable damping characteristics independent of temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluid-based damping mechanisms (hydraulic or pneumatic) are used, then damping function is achieved, but device complexity increases and reliability decreases due to leakage risks
Solution Approach 1:
The patent removes the fluid working medium entirely from the damping system. Instead of using hydraulic fluid or gas in sealed chambers, the invention employs a purely mechanical damping mechanism consisting of a piston with damping holes and a damping element, eliminating the need for tight sealing and fluid containment.
Solution Approach 2:
The patent replaces the fluid-based hydraulic/pneumatic damping system with a mechanical damping structure. The damping effect is achieved through the physical interaction between the piston, damping holes, and damping element, substituting fluid displacement with direct mechanical resistance.
2Temperature
If liquid working media (oils) are used for damping, then damping capacity is achieved, but temperature dependence increases due to viscosity changes
Solution Approach 1:
The patent replaces temperature-sensitive liquid damping media with a temperature-insensitive mechanical damping structure. The damping force is generated by the physical resistance of the damping element and the geometry of damping holes, which do not exhibit viscosity changes with temperature.
Solution Approach 2:
The patent changes the damping mechanism from fluid-based (where viscosity is the key parameter) to solid-based mechanical resistance. By altering the fundamental damping parameter from fluid viscosity to solid material mechanical properties, the system becomes insensitive to temperature variations.
3Ease of manufacture
If air or hydraulic fluid is forced through orifices for damping, then damping effect is achieved, but manufacturing precision requirements increase to ensure tightness
Solution Approach 1:
The patent eliminates the requirement for tight working chambers by removing the fluid containment system. The damping holes in the piston do not require precision sealing, and the damping element can be a simple mechanical component rather than a precision fluid passage.
Solution Approach 2:
The patent employs simpler, less expensive materials and manufacturing methods. The damping element can be made from basic materials like rubber or plastic rather than precision-machined metal components required for hydraulic systems, reducing manufacturing costs and complexity.
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 simplifies the design, reduces manufacturing costs, and provides temperature-independent damping, enabling efficient and user-specific damping control without fluid displacement, thus enhancing reliability and performance.
Implementation Method 1
a lamella or rib structure (4) connected to the first or second damper component (2, 3) with a plurality of projecting regions, for example lamellae, fingers, knobs and/or ribs, which are elastically deflectable at least partially or in regions in the direction of movement of the first damper component (2) relative to the second damper component (3)
Data Source
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AI summary
The invention relates to a damping device (1) for damping a movement of a second component that is movable relative to a first component, wherein the damping device (1) comprises a first damping component (2), a second damping component (3) which is movable - at least partially or in a range - relative to the first damping component (2), and a damping mechanism which is arranged and configured between the first and second damping components (2, 3) in such a way that a movement of the second damping component (3) relative to the first damping component (2) is reduced or can be reduced.The damper device (1) according to the invention is characterized in particular by the fact that the damping mechanism has a lamellar or rib structure (4) connected to the first or second damper component (2; 3) with a plurality of projecting areas, in particular in the form of lamellae, ribs or knobs, which are at least partially or partially elastically deflectable in the direction of movement of the first damper component (2) relative to the second damper component (3), and that the damping mechanism has a comb structure (5) connected to the second or first damper component (3; 2) with at least one and preferably a plurality of teeth or projections, wherein the at least one tooth or projection of the comb structure (5) is arranged at least partially or partially in a combing manner between two adjacent projecting areas of the lamellar or rib structure (4).