Variable Damping Assembly for Smooth Air Filter Housing Lift
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Solution Overview
Problem
Air filtering devices require manual removal of the housing to change filters, which is inconvenient.
Innovation Solution
A variable damping assembly comprising a base, a supporting member, a damping member, and an elastic member that generates a variable damping force to facilitate the lifting of the housing by accumulating and releasing elastic potential energy, allowing for easier filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual removal of housing is used to change filters, then device structure is simple, but operation convenience deteriorates
Solution Approach 1:
The elastic member stores elastic potential energy when the housing is pressed down, and automatically releases this energy to lift the housing during filter replacement. This self-service mechanism eliminates the need for manual lifting effort while maintaining a relatively simple structural composition.
Solution Approach 2:
The elastic member is pre-compressed when the housing is in the down position, storing elastic potential energy in advance. This preliminary energy storage enables the housing to be automatically lifted without requiring significant manual intervention during the actual filter replacement operation.
2Ease of operation
If elastic member is added to assist housing lifting, then operation convenience improves, but device complexity increases
Solution Approach 1:
The elastic member functions as a self-service component that automatically converts stored elastic potential energy into lifting force. This single component performs the complex function of counteracting housing weight and providing controlled lifting, achieving operational assistance without requiring multiple complex mechanisms.
Solution Approach 2:
The elastic member changes its elastic potential energy parameter based on the housing position - compressed when housing is down (storing energy) and extended when housing is lifted (releasing energy). This parameter change enables the same component to provide both structural support and lifting assistance.
3Stability of the object's composition
If damping force is used to control housing movement, then housing stability improves, but rapid bouncing occurs without proper damping
Solution Approach 1:
The damping member is positioned to provide cushioning force before the housing can bounce rapidly. When the housing moves upward due to elastic member release, the damping member engages to provide resistive force, cushioning the movement and preventing rapid bouncing before it occurs.
Solution Approach 2:
The damping member acts as an intermediary between the elastic member's lifting force and the housing. It mediates the energy transfer by providing controlled resistance, converting the potentially abrupt elastic release into smooth, controlled housing movement and eliminating harmful bouncing.
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
Enables the housing of the air filtering device to be lifted efficiently and stably, reducing manual effort and ensuring smooth filter replacement without rapid bouncing, thus improving user convenience.
Implementation Method 1
an elastic member (17) positioned in the moving space and configured to generate the variable damping force by accumulating and releasing elastic potential energy
Implementation Method 2
a damping member (15) positioned in the rotating space and configured to press against an inner wall of the housing to generate a damping force
Data Source
AI summary
A variable damping assembly includes a base, a supporting member, a damping member, and an elastic member. The supporting member is positioned on the base. The damping member is rotatably coupled to the supporting member and presses against the housing. The elastic member includes a first end and a second end opposite to the first end. The first end of the elastic member is coupled to the supporting member and the second end of the elastic member is coupled to the housing. The elastic member provides an elastic force and the damping member provides a damping force changed as the elastic force changes.