Insertion Device Compensation Spring Auxiliary Frame

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Solution Overview

Problem

Existing insertion devices for generating synchrotron radiation face challenges in maintaining precise gap control due to deformation of coupling beams caused by attractive forces between magnet arrays, leading to suboptimal magnetic-field intensity distribution.

Innovation Solution

The design incorporates a compensation spring mechanism with an auxiliary frame system that allows for optimal placement of the compensation spring mechanism, decoupling its operation from the gap driving mechanism and enabling relative movement to minimize beam deformation, using a spring conjunction mechanism with guide and auxiliary frames to manage moments induced by the compensation springs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a compensation spring mechanism is coupled to coupling beams via coupling portions placed between coupling shafts, then the compensation spring mechanism can counteract attractive forces between magnet arrays, but the positions of coupling portions are inevitably determined by coupling shaft positions, preventing optimal placement for minimizing beam deformation

Engineering Contradiction:
Improvecompensation spring mechanism effectivenessVSAvoidcoupling beam deformation
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent divides the coupling structure into separate functional components: coupling shafts for transmitting driving forces and auxiliary frames for mounting compensation spring mechanisms. This segmentation allows each component to be optimized independently, with coupling shafts positioned for mechanical coupling and auxiliary frames positioned to minimize beam deformation while providing mounting locations for the compensation springs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces auxiliary frames as intermediary structures between the coupling beams and the compensation spring mechanisms. These auxiliary frames serve as mediators that decouple the positioning constraints of the coupling shafts from the optimal positioning requirements of the compensation springs, allowing the springs to be placed at locations that best minimize beam deformation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If coupling portions are placed between coupling shafts to avoid physical interference, then the structure remains compact, but the compensation spring mechanisms cannot be placed at optimal positions for minimizing coupling beam deformation

Engineering Contradiction:
Improvestructural compactnessVSAvoidcoupling beam deformation
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent resolves the spatial conflict by transitioning from a one-dimensional arrangement (placing components along the beam length) to a multi-dimensional configuration using auxiliary frames that extend perpendicular to the coupling beam. This allows compensation spring mechanisms to be mounted on auxiliary frames at positions that optimize deformation minimization without interfering with coupling shafts, effectively utilizing three-dimensional space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the magnet supporting members are coupled to coupling beams via coupling shafts, then the gap driving mechanism can change the gap size, but the attractive forces between magnet arrays cause deformation of the coupling beams

Engineering Contradiction:
Improvegap size adjustmentVSAvoidmagnetic-field intensity distribution
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent implements preliminary anti-action by introducing compensation spring mechanisms that pre-counteract the attractive forces between magnet arrays before these forces can cause significant beam deformation. The compensation springs are positioned and pre-loaded to oppose the magnetic attraction, thereby maintaining the coupling beams in a more stable position and preserving the intended magnetic-field intensity distribution.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent employs parameter changes by adjusting the stiffness, pre-load, and positioning of compensation spring mechanisms to optimize their counteracting effect. By carefully selecting spring parameters and their mounting positions on auxiliary frames, the system achieves optimal compensation for beam deformation while maintaining gap driving functionality.

Inventive Principle:
Principle #35Parameter changes

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 effectively minimizes deformation of coupling beams, maintains precise gap control, and ensures consistent magnetic-field intensity distribution, enhancing the generation of synchrotron radiation with desired properties.

Implementation Method 1

a compensation spring mechanism adapted to act in a direction in which an attractive force acting between the first magnet array and the second magnet array is cancelled

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a guide mechanism for guiding relative movement of the first spring supporting frame and the second spring supporting frame, in the direction in which the magnet arrays are facing each other

Methodology Applied
Scientific EffectMechanical guidance:

Implementation Method 3

If an electron beam having been accelerated to near the light velocity in a vacuum is bent within a magnet field, radiated light is emitted in tangential directions of the trajectory of the movement of the electron beam. This is called synchrotron radiation.

Methodology Applied
Scientific EffectSynchrotron radiation: Synchrotron Radiation

Implementation Method 4

a first magnet array including a plurality of magnets placed in an array; a second magnet array including a plurality of magnets placed in an array

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Data Source

PatentEP3716738B1Insertion device
Publication Date: 2023.01.18 PROTERIAL LTD
  • EP3716738B1 patent drawingFigure 1
  • EP3716738B1 patent drawingFigure 2
  • EP3716738B1 patent drawingFigure 3

AI summary

An insertion device includes: a gap driving mechanism (50) for driving magnet supporting members (1 and 2) vertically in order to change the gap (δ) between magnet arrays (M1, M2); a first coupling beam (103 and a second coupling beam (203) coupled to the magnet supporting members (1 and 2); a mechanism that couples the coupling beams (103 and 203 and the gap driving mechanism (50) together; a compensation spring mechanism (40) adapted to cancel an attractive force acting between the magnet arrays (M1, M2); and a spring conjunction mechanism (30) that couples the compensation spring mechanism (40) to the magnet supporting members (1 and 2), in which the spring conjunction mechanism includes a first auxiliary frame (91) coupled to the first coupling beam (103) via a pair of first coupling portions (91A), a second auxiliary frame (92) coupled to the second coupling beam (203) via a pair of second coupling portions (92A), and a first spring supporting frame (31) and a second spring supporting frame (32) mounted to the first and second auxiliary frames (91 and 92), and the compensation spring mechanism (40) is mounted to the first and second spring supporting frames (31 and 32).