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Connection structure and manufacturing method thereof

A connection structure and manufacturing method technology, which is applied to the connection structure of superconducting magnets in magnetic resonance imaging systems and its manufacturing field, can solve the problems of poor mechanical properties of connection structures, complicated manufacturing processes, and high manufacturing costs, and achieve simple manufacturing methods and mechanical Improved performance and reduced manufacturing costs

Active Publication Date: 2014-11-12
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The present invention solves the problem that the connection structure in the prior art has poor mechanical properties and is easily damaged; the manufacturing process is complicated and the manufacturing cost is high; and it is not easy to replace after damage

Method used

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  • Connection structure and manufacturing method thereof
  • Connection structure and manufacturing method thereof
  • Connection structure and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0045] image 3 It is a schematic diagram of the connection structure between the positive tube and the cooling block in Embodiment 1 of the present invention, image 3It shows the positive tube 2, the upper negative tube 17, the lower negative tube 18, the cooling block 3 of the superconducting magnet used in the magnetic resonance imaging system, the upper negative tube 17 and the lower negative tube 18 are connected to the cooling block 3 by high-temperature vacuum brazing The connection is fixed, the positive tube 2 is located in the circular tube formed by the upper negative tube 17 and the lower negative tube 18, the positive tube 2 passes through a through hole of the cooling block 3, and there is a gap between the outer wall of the positive tube 2 and the through hole, To fill the insulating and thermally conductive colloidal material 16 used to connect and fix the positive tube 2 and the cooling block 3 . The upper end of the positive tube 3 is connected to a through...

Embodiment 2

[0074] Figure 8 It is a schematic diagram of the connection structure of Embodiment 2 of the present invention, such as Figure 8 As shown, the insulating and thermally conductive gel material 16' continuously fills the gap between the positive tube 2 and the cooling block 3, and the insulating and thermally conductive gel material 16' is partially exposed outside the cooling block 3.

Embodiment 3

[0076] Figure 9 It is a schematic diagram of the connection structure of Embodiment 3 of the present invention, such as Figure 9 As shown, the insulating and thermally conductive gel material 16 ″ continuously fills the gap between the positive tube 2 and the cooling block 3 , and the insulating and thermally conductive gel material 16 ″ in the gap is completely accommodated in the cooling block 3 .

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Abstract

The invention discloses a connection structure used for superconducting magnets of a magnetic resonance imaging system and a manufacturing method of the connection structure. The connection structure comprises a positive tube and a cooling block, wherein the cooling block is provided with a through hole allowing the positive tube to penetrate, and a gap between the outer wall of the positive tube and the inner surface of the through hole is filled with an insulating heat conduction colloid material. Compared with a conventional connection structure, the connection structure is more compact and space-saving; the manufacturing method is simple, and the manufacturing cost is greatly reduced; and the mechanical property is superior to the conventional connection structure, the structure damage condition caused by stress can be reduced, the high maintenance cost is avoided, and the connection structure is easy to replace once damaged.

Description

【Technical field】 [0001] The invention relates to the technical field of magnetic resonance imaging (MRI, Magnetic Resonance Imaging), in particular to a connection structure for a superconducting magnet in a magnetic resonance imaging system and a manufacturing method thereof. 【Background technique】 [0002] Superconducting magnets are an important part of magnetic resonance imaging systems. figure 1 Shows a schematic structural view of the superconducting magnet of the magnetic resonance imaging system. The superconducting magnet is in the shape of a torus with a cavity in the middle, and includes a cryostat 4 and a magnet 10. The magnet 10 is located in the cryogen container 5 and is Immerse in the liquid cryogen 8 and cool to a superconducting state; the vacuum chamber 9 is located at the outermost layer on both sides of the cryostat 4 in contact with the air, and the refrigerant container 5 is located at the middle layer of the cryostat 4; One or more heat radiation sh...

Claims

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Application Information

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IPC IPC(8): H01F6/00H01F6/04H01F41/00G01R33/3815
Inventor 钱津
Owner SHANGHAI UNITED IMAGING HEALTHCARE