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Fixed structure of superconducting magnet and its coil

A technology of superconducting magnets and fixed structures, which is applied in the direction of superconducting magnets/coils, magnetic objects, electrical components, etc., and can solve problems such as quenching of superconducting magnets

Active Publication Date: 2021-01-12
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to provide a superconducting magnet coil fixing structure that can effectively avoid the superconducting magnet quench phenomenon in view of the problem that superconducting magnets are prone to quench phenomena

Method used

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  • Fixed structure of superconducting magnet and its coil
  • Fixed structure of superconducting magnet and its coil
  • Fixed structure of superconducting magnet and its coil

Examples

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the superconducting magnet and its coil fixing structure of the present invention will be further described in detail through the following examples and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right,"...

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Abstract

The invention relates to the technical field of magnetic resonance imaging, in particular to a fixing structure of a superconducting magnet and a coil thereof. The fixing structure comprises a bobbin,a bobbin is provided with a wire slot, and the wire slot is used for accommodating the coil assembly; A limiting structure disposed on the bobbin and connected to the coil assembly, the limiting structure for enabling the coil assembly to be fixed with respect to the bobbin slot in the axial direction of the bobbin and enabling the coil assembly to move a predetermined distance with respect to the bobbin slot in the radial direction of the bobbin. By setting the limiting structure, the phenomenon that the coil moves freely in the slot due to transporting and flipping the magnet in the magnetproduction process is greatly reduced, and the quenching of the magnet in the excitation process is avoided. Moreover, the limiting structure can allow the coil to move in the radial direction relative to the bobbin in a certain range, thus ensuring that the coil has a certain expansion space, and avoiding the magnet quenching phenomenon caused by the larger stress between the coil and the limiting structure.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a fixing structure of a superconducting magnet and its coil. Background technique [0002] Magnetic resonance imaging equipment generally adopts a winding frame with wire grooves, and superconducting magnets are formed by winding superconducting wires in the wire grooves. After the superconducting wire is wound into an annular ring, the superconducting coil in the same wire slot is generally bonded together by glue filling process. Usually the superconducting wire is a metal material, and the glue is a resin material. The difference in physical properties between the two causes the superconducting magnet after glue filling to show anisotropic characteristics, the most obvious being the shrinkage rate. Usually after pre-cooling, the superconducting coil will be separated from the wire groove in the axial and radial directions of the winding frame, forming a cer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/06
CPCH01F6/06
Inventor 邹利军蔡衍卿谭国陞马林娄昕
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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