Insertion Device Spring Conjunction Mechanism for Gap Control

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Solution Overview

Problem

Existing insertion devices for synchrotron radiation face challenges in precise gap control due to moments induced by compensation spring mechanisms, leading to deformation and degradation of magnetic-field intensity distribution, and increased device size.

Innovation Solution

The insertion device incorporates a spring conjunction mechanism with a guide mechanism to absorb moments from compensation springs, preventing their influence on gap driving mechanisms, and is designed to maintain stability and reduce size, featuring coupling beams and spring supporting frames that move relative to each other to cancel attractive forces between magnet arrays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If compensation spring mechanisms are used to support magnet arrays, then the magnetic-field intensity distribution is stabilized, but moments induced by the springs cause deformation of gap driving mechanisms and degradation of precise gap control

Engineering Contradiction:
Improvemagnetic-field intensity distributionVSAvoidprecise gap control
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

A rigid connection structure is introduced as an intermediary between the compensation spring mechanism and the gap driving mechanism. This structure includes a connection beam that rigidly connects the spring supporting frame to the gap driving mechanism, and a connection portion that rigidly connects the beam to the magnet supporting member. This intermediary structure transfers and stabilizes the compensating forces from the springs while preventing the moments from deforming the gap driving mechanism, thus resolving the contradiction between stabilizing magnetic-field distribution and maintaining precise gap control.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If compensation spring mechanisms are added to support magnet arrays, then deformation of magnet supporting members is suppressed, but device size increases

Engineering Contradiction:
Improvemagnet supporting member stabilityVSAvoiddevice size
Core Design Contradiction:
Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

The connection structure is merged with the existing magnet supporting member and gap driving mechanism. The connection beam is integrated into the supporting structure, and the connection portions are combined with existing mounting interfaces. This merging approach allows the compensation spring mechanism to be incorporated without significantly increasing the overall device volume, as the new components share space with existing structural elements.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If rigid connection structures are used to couple gap driving mechanism and magnet supporting members, then precise gap driving is maintained, but loads from magnet arrays are not effectively compensated

Engineering Contradiction:
Improveprecise gap drivingVSAvoidload compensation
Core Design Contradiction:
Manufacturing precisionVSForce

Solution Approach 1:

The connection structure is segmented into distinct functional components: a connection beam that handles force transmission, connection portions that handle moment compensation, and a rigid coupling that maintains precision. This segmentation allows each component to be optimized for its specific function - the beam provides structural rigidity for precision gap driving while the connection portions accommodate the compensating forces from the spring mechanism, thus resolving the contradiction between maintaining precision and achieving effective load compensation.

Inventive Principle:
Principle #1Segmentation

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 solution effectively prevents deformation and maintains precise gap control, reducing the impact of compensation spring moments on gap driving and inhibiting size increases, ensuring stable magnetic-field intensity distribution and efficient operation.

Implementation Method 1

a compensation spring mechanism adapted to act in such a direction as to cancel an attractive force acting between the first magnet array and the second magnet array

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a first magnet array constituted by a plurality of magnets placed in an array, and a second magnet array constituted by a plurality of magnets placed in an array, which are faced to each other with a gap interposed therebetween

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentEP3579667B1Insertion device
Publication Date: 2024.01.03 PROTERIAL LTD
  • EP3579667B1 patent drawingFigure 1
  • EP3579667B1 patent drawingFigure 2
  • EP3579667B1 patent drawingFigure 3

AI summary

The present invention prevents moment brought by a cancellation spring mechanism from affecting a gap drive. The present invention is provided with: a first magnet array (M1); a first magnet support body (1); a second magnet array (M2); a second magnet support body (2); a gap drive mechanism (50) for performing vertical drive of the magnet support bodies (1, 2) in order to change a gap (δ); first, second connection beams (103), (203) connected to the magnet support bodies (1, 2); a mechanism for connecting the connection beams (103, 203) to the gap drive mechanism (50); a cancellation spring mechanism (40) for cancelling a suction force that acts between magnet arrays; and a spring interlocking mechanism (30) for connecting the cancellation spring mechanism (40) to the magnet support bodies (1, 2). In the spring interlocking mechanism (30), first and second spring support frames (31, 32) that are connected to the first and second connection beams (103, 203) via a connecting portion, and a guide mechanism (36) for guiding vertical movements of the first and second spring support frames (31, 32) are mounted, and the cancellation spring mechanism (40) are mounted to both of the first and second spring support frames (31, 32).