Cable Connection Unit for Gradient Coil Vibration Reduction
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Solution Overview
Problem
Conventional cable connection units for gradient coil units in magnetic resonance devices experience vibrations due to Lorentz forces, leading to material fatigue and reduced image quality, and existing solutions are complex and costly to manufacture.
Innovation Solution
A robust and low-vibration cable connection unit is designed with parallel electric conductors connected via a frictional load-carrying connection, utilizing a flexible cladding and elastic material to stabilize the conductors and reduce Lorentz force impact, eliminating the need for rigid structures and complex manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional cable connection units are used with rigid structures and complex manufacturing processes, then manufacturing precision and structural stability are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies a flexible cladding (36) made of textile material that envelops the electric conductors, providing structural stability and vibration reduction without requiring rigid structures. This flexible shell approach maintains mechanical integrity while eliminating complex rigid support systems.
Solution Approach 2:
The patent uses composite construction by combining electric conductors with a textile cladding material. This composite structure integrates the functional electrical conductors with the mechanical support function of the textile material, achieving both stability and simplicity.
2Stability of the object's composition
If rigid pre-bent tubes are used to stabilize conductors, then structural stability is improved, but vibration decoupling becomes inadequate
Solution Approach 1:
The flexible cladding envelops the conductors and provides stabilization through frictional contact rather than rigid constraint. This allows the conductors to move independently, decoupling vibrations while maintaining structural stability through the flexible envelope.
Solution Approach 2:
The flexible cladding acts as an intermediary between the conductors and the external environment, providing frictional support that stabilizes the conductors while allowing relative motion. This intermediary layer decouples vibrations from being transmitted to the rigid structure.
3Reliability
If complex manufacturing processes with guide grooves and epoxy resin are used, then connection reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent extracts and eliminates the complex manufacturing steps involving guide grooves, epoxy resin injection, and curing processes. The simplified design allows conductors to be directly enclosed in the flexible cladding, which provides sufficient stabilization without additional bonding materials or complex assembly steps.
Solution Approach 2:
The patent changes the fundamental approach from rigid bonded connections to flexible friction-based stabilization. This parameter change in the connection mechanism enables simple manufacturing while maintaining reliability through the frictional load-carrying connection provided by the flexible cladding.
4Reliability
If parallel conductor arrangement with frictional connection is used, then vibration reduction is improved, but manufacturing precision requirements increase
Solution Approach 1:
The flexible cladding envelops the parallel conductors and provides frictional contact that maintains their positioning without requiring high manufacturing precision. The flexibility of the cladding accommodates minor positioning variations while maintaining the parallel arrangement needed for vibration reduction.
Solution Approach 2:
The patent uses a dynamic, flexible connection approach rather than rigid fixed positioning. The flexible cladding allows the conductors to maintain their parallel arrangement through frictional contact while accommodating natural movements and positioning tolerances, reducing the need for high manufacturing precision.
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 significantly reduces vibrations, enhances image quality, and extends the durability of the cable connection unit while simplifying its design and manufacturing, thereby improving the reliability and cost-effectiveness of the magnetic resonance device.
Implementation Method 1
The cable connection unit is typically in the stray field of the main magnetic field and therefore experiences Lorentz forces. This typically results in vibrations during operation of the gradient coil unit.
Implementation Method 2
The first electric conductor and the second electric conductor are connected to one another via a load-carrying connection
Data Source
AI summary
Techniques are disclosed relating to a cable connection unit for connection to a gradient coil unit, which includes at least one first electric conductor and one second electric conductor. The first electric conductor and the second electric conductor may be arranged at least partially next to one other, and be connected to one another via a load-carrying connection.