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Main magnetic field generating unit, field rising and falling unit, superconducting magnet and field rising and falling method

A technology for generating units and superconducting magnets, which can be used in superconducting magnets/coils, magnetic objects, electrical components, etc., and can solve problems such as increasing costs and wasting energy.

Active Publication Date: 2021-07-23
SIEMENS SHENZHEN MAGNETIC RESONANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is a waste of energy, and the heat dissipated needs to be absorbed by an additional cooling system, which increases the cost

Method used

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  • Main magnetic field generating unit, field rising and falling unit, superconducting magnet and field rising and falling method
  • Main magnetic field generating unit, field rising and falling unit, superconducting magnet and field rising and falling method
  • Main magnetic field generating unit, field rising and falling unit, superconducting magnet and field rising and falling method

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Embodiment Construction

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings, in which the same reference numerals represent components with the same or similar structures but the same functions.

[0046] In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.

[0047] In this document, "first", "second", etc. do not indicate their importance or order, but are only used to indicate their differences to facilitate the description of the document.

[0048] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product.

[0049] figure 1...

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Abstract

A main magnetic field generating unit of a superconducting magnet comprises a magnet coil (10), a superconducting switch (20), a diode (30), a change-over switch (40), a rechargeable battery (50) and a control switch (60). The magnet coil has a current input end (11) and a current output end (12). The superconducting switch and the diode are connected in parallel with the magnet coil. The change-over switch can be switched between a first mode and a second mode. The rechargeable battery is connected with the change-over switch. In the first mode, the anode of the rechargeable battery is connected with the current input end, and the cathode of the rechargeable battery is connected with the current output end. In the second mode, the anode of the rechargeable battery is connected with the current output end, and the cathode of the rechargeable battery is connected with the current input end. The control switch is connected in series with the magnet coil, the superconducting switch and the diode which are connected in parallel. The main magnetic field generating unit realizes field rising and falling through charging and discharging of the rechargeable battery, and electric energy is saved. The invention further provides a superconducting magnet and a field rising and falling method.

Description

technical field [0001] The invention relates to a main magnetic field generating unit of a superconducting magnet, in particular to a main magnetic field generating unit beneficial to energy saving and a superconducting magnet comprising the main magnetic field generating unit. In addition, the invention also relates to a lift field unit and a field lift method for superconducting magnets which are beneficial to energy saving. Background technique [0002] As the current mainstream medical imaging equipment, magnetic resonance imaging devices play a prominent role in clinical diagnosis and patient examination. The main magnetic field generating unit of the superconducting magnet is an important functional part of the magnetic resonance imaging device, which is used to form the main magnetic field required for detection. During use, the main magnetic field generating unit will go through the process of field up (ie excitation) and field down (ie demagnetization). At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/00H02J7/00
CPCH01F6/00H01F6/003H02J7/0068H02J7/007H02J7/0013
Inventor 薛廷强汪坚敏
Owner SIEMENS SHENZHEN MAGNETIC RESONANCE