C-Shape Back Iron for Compact Damping Valve Assembly
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Solution Overview
Problem
The existing adjustable damping valve devices require a large installation space for the coil housing, which hinders the minimization of constructional length, and there is no bonding connection between the back iron and the coil housing, leading to inefficiencies in magnetic flux and assembly.
Innovation Solution
The wire ends of the coil are co-located adjacent to each other in the outlet area of the coil carrier, and the back iron features a radial slot that extends from the outer edge to the passage, allowing for a C-shape design that eliminates the need for a yoke installation space, with a toroidal support surface and centering profiles for precise alignment and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the coil housing is designed with a traditional yoke structure and bonding connections, then the magnetic flux path is complete, but the constructional length and installation space increase
Solution Approach 1:
The patent removes the traditional yoke structure and bonding connections from the coil housing design. The back iron is designed as a C-shape that directly engages with the coil carrier without requiring additional yoke components or bonding agents, thereby eliminating the need for extra installation space and reducing constructional length while maintaining the magnetic flux path through direct contact between the C-shape back iron and the coil carrier.
2Length of stationary object
If the back iron is designed as a C-shape to reduce installation space, then the constructional length decreases, but the magnetic flux may be worsened
Solution Approach 1:
The patent applies local quality by designing the C-shape back iron with specific geometric features including a radially extending guide and a centering profile. These localized structural modifications ensure that the magnetic flux path is optimized at critical interfaces between the back iron and coil carrier, maintaining reliable magnetic coupling while preserving the space-saving C-shape configuration.
3Manufacturing precision
If the back iron and coil carrier are designed for precise alignment, then the magnetic flux transition is uniform, but the assembly complexity increases
Solution Approach 1:
The patent incorporates a centering profile on the coil carrier that preliminarily positions the back iron in the correct alignment during assembly. This pre-configured alignment feature guides the back iron into proper position before final installation, ensuring uniform magnetic flux transition while simplifying the assembly process by eliminating the need for complex alignment procedures or additional adjustment steps.
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
This configuration reduces the installation space requirements, maintains magnetic flux, and ensures a compact and variable damping valve device with improved assembly precision and magnetic flux transition, preventing jamming and allowing for a simple and efficient construction process.
Implementation Method 1
a magnetic coil (17) wound on an inner sleeve (31)
Implementation Method 2
a back iron (29) having a passage (61) for a power supply line (19) of the magnetic coil (17) placed on the coil carrier (25)
Data Source
AI summary
An adjustable damping valve device includes a coil carrier with a coil which is wound on an inner sleeve and which has two wire ends which protrude over a winding body. A back iron having a passage for a power supply line of the coil is placed on the coil carrier. The wire ends of the coil are co-located adjacent to one another in an outlet area of the coil carrier, and the back iron has a radial slot which extends from the outer edge of the back iron to the passage and has a width which corresponds at least to the width of the outlet area.