Shock Absorber Cylinder with Electromagnetic Blocking Member
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Solution Overview
Problem
Conventional magnetorheological shock absorbers are expensive and prone to maintenance issues due to fluid leakage, making them inaccessible to average consumers, and their adjustability is lost when replaced with mechanical shock absorbers.
Innovation Solution
A shock absorber system featuring a cylinder with an electronic control device and a rod unit that generates a magnetic field to control the flow of damping liquid and gas, allowing adjustable damping force through an electromagnetic unit and a blocking member, enabling adjustable stiffness without the need for expensive magnetorheological fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If magnetorheological fluid is used to enable adjustable damping characteristics, then the shock absorber can be adjusted during driving, but manufacturing costs become high and maintenance expenses increase due to fluid leakage
Solution Approach 1:
The patent removes the magnetorheological fluid from the system entirely, extracting only the essential function of adjustable damping. The electromagnetic unit and blocking member control damping characteristics through mechanical means rather than relying on magnetorheological fluid properties, thereby eliminating fluid leakage issues and reducing manufacturing costs while maintaining adjustability.
Solution Approach 2:
The patent replaces expensive magnetorheological fluid with a simpler, more durable mechanical control system using a blocking member and electromagnetic unit. This substitution uses cheaper components that are more reliable and require less maintenance, making the shock absorber economically viable for average consumers.
2Adaptability or versatility
If magnetorheological fluid with metal particles is used to provide adjustable damping, then damping characteristics can be changed, but the metal particles abrade components causing fluid leakage and frequent repairs
Solution Approach 1:
The patent extracts the adjustable damping function from the magnetorheological fluid system and implements it through a mechanical blocking member controlled by an electromagnetic unit. This eliminates the metal particles that cause abrasion and leakage, significantly improving reliability while maintaining the ability to adjust damping characteristics during driving.
Solution Approach 2:
The patent replaces the magnetorheological fluid mechanism with a mechanical control system consisting of a blocking member that physically restricts fluid flow paths. The electromagnetic unit actuates the blocking member to change damping characteristics, substituting the fluid-based magnetic control with a more reliable mechanical approach that avoids particle abrasion.
3Ease of manufacture
If conventional mechanical shock absorber is used to avoid high maintenance costs, then maintenance expenses are reduced, but the stiffness becomes non-adjustable during driving
Solution Approach 1:
The patent introduces dynamic adjustability to the shock absorber by incorporating an electromagnetic unit and blocking member that can change the damping characteristics during driving. The blocking member can be positioned at different locations or removed entirely to adjust stiffness, transforming a static mechanical shock absorber into a dynamically adjustable system while maintaining lower maintenance costs compared to magnetorheological systems.
Solution Approach 2:
The patent copies the essential adjustability function of magnetorheological shock absorbers but implements it through a different, more reliable mechanism. Instead of using magnetorheological fluid and complex electromagnetic control, the patent uses a blocking member system that achieves similar adjustability with simpler, more durable components that require less maintenance.
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 system provides adjustable shock absorption, reducing maintenance costs and extending the service life of the shock absorber, while maintaining adjustability similar to magnetorheological systems without the high costs and leakage issues.
Implementation Method 1
The electromagnetic unit generates a magnetic field when energized
Implementation Method 2
The piston of the cylinder is adapted to be movable by the damping liquid to compress the gas that is filled in the air space of the cylinder so that the cylinder absorbs shock
Data Source
AI summary
A shock absorber includes a cylinder that includes a cylinder body defining a disposing space, a piston movably disposed in the disposing space and dividing the disposing space into a liquid space and an air space, and an electronic control device disposed in the air space and dividing the air space into a first chamber space and a second chamber space. The electronic control device has an electromagnetic unit and a rod unit that includes a blocking member, and that is controllable by the electromagnetic unit to convert between a blocking state and an unblocking state, in which the blocking member respectively prevents and permits fluid communication between the first chamber space and the second chamber space.