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Cylinder type series-connection line direct-current monopole motor

A unipolar motor and circuit technology, applied in electrical components, electromechanical devices, etc., can solve problems such as restricting the practical development process of unipolar superconducting motors, difficulty, corrosion, etc., to improve the effective current-carrying density and stability. Improve power density and efficiency, time-stretching effect of pulsed current

Inactive Publication Date: 2019-11-12
尹衍国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 2. However, the wire or strip made of superconducting materials has a large AC loss when passing through alternating current. The application of DC superconducting is a relatively effective development direction, and the unipolar structure is undoubtedly the best design and manufacture of superconducting motors. option, but the unipolar motor has the weakness that the armature potential is too small, which will increase the armature current, which can reach tens of thousands, hundreds of thousands of amperes, or even higher, resulting in a problem of rotating current collection Technically It has become a difficult problem. In order to match a wider range of parameters and solve various disadvantages caused by large currents, increasing the armature voltage is an important issue that must be solved.
[0004] 3. The current conventional unipolar superconducting motors generally use conventional copper armature windings as the rotor, and the superconducting excitation coil as the stator. In order to increase the armature voltage, the armature is generally connected by a brush slip ring. Series structure and large current collection, but the current collection slip ring itself brings many corresponding technical problems, such as corrosion of alkali metal, matching of wet brush of contact coupler and slip ring material, cooling and cooling, due to magnetic circuit requirements However, the selection of non-magnetic materials, various problems caused by the electromagnetic force generated by the leakage magnetic field in the collector area on liquid metal or solid brushes, and the setting of the ambient atmosphere have greatly restricted the practical application of unipolar superconducting motors. Development process

Method used

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  • Cylinder type series-connection line direct-current monopole motor
  • Cylinder type series-connection line direct-current monopole motor
  • Cylinder type series-connection line direct-current monopole motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Ferromagnetic material-oriented silicon steel is selected as the casing (1100), the hollow cylindrical glass fiber reinforced plastic is arranged on the inner wall of the cylindrical shell (1100-A), and the hollow disc glass fiber reinforced plastic is arranged on the disc end cover (1100-B). The inner wall and the hollow layer are evacuated to 10 -5 Torr vacuum is maintained for static vacuum as the thermal insulation layer, which is a low-temperature chamber (1101); the cylindrical glass fiber reinforced plastic is used as the cylindrical rotor (1201), and YBCO high-temperature superconducting tape is selected by segment welding or 3D printing. Open-loop squirrel cage armature (1202), each group of parallel armature lines (1202-A2) parallel 4 axial armature lines (1202-A1), and set on the barrel rotor (1201), series armature The circuit (1202-B) is connected in series with each group of parallel armature circuits (1202-A2) to form an open-loop squirrel cage s...

Embodiment 2

[0038] Embodiment 2: The difference from Embodiment 1 is that an external prime mover provides mechanical kinetic energy to make the barrel rotor (1201) rotate, and the axial armature circuit (1202-A1) of the rotor part cuts 2 ring super The unipolar radial magnetic field lines generated by the excitation coil (1302) generate a stable direct current induced current, which can be used as a generator by connecting an external energy storage device or an electrical device or a networked power supply.

Embodiment 3

[0039] Embodiment 3: The difference from Embodiments 1 to 2 above is that the open-loop squirrel cage armature (1202) uses conventional copper armature windings, and the superconducting coils are arranged in a toroidal low-temperature container. Watt conduction refrigeration provides support.

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Abstract

The invention discloses a cylinder type series-connection line direct-current monopole motor; the cylinder type series-connection line direct-current monopole motor comprises a machine shell (1100), astator (1300) and a rotor (1200), wherein the machine shell comprises a cylindrical shell (1100-A) and disc type end covers (1100-B) at the two axial ends of the cylindrical shell (1100-A); the stator (1300 and the rotor (1200) are arranged in the machine shell; the motor is characterized in that the stator comprises an excitation coil fixing body (1301) and annular excitation coils (1302); the rotor (1200) comprises at least one open-loop squirrel-cage armature (1202) and a cylindrical rotor (1201); the annular excitation coils (1302) are arranged on the excitation coil fixing body (1301); at least one open-loop squirrel-cage armature (1202) is arranged on the cylindrical rotor (1201); at least two annular excitation coils are arranged at intervals in the axial direction; the current directions of adjacent annular excitation coils are opposite to form a monopole radial magnetic field; and one open-loop squirrel-cage armature (1202) is correspondingly arranged on the inner side of theeffective excitation edge of each monopole radial magnetic field .

Description

Technical field [0001] The invention relates to the field of unipolar motors, in particular to a cylindrical series line superconducting DC unipolar generator or motor or superconducting energy storage device. Background technique [0002] 1. At present, high-temperature superconducting materials are gradually entering the development stage of industrial application. The field of motor technology is even more popular in the application of superconducting materials. High-temperature superconducting materials have an order of magnitude higher current-carrying density than conventional conductive materials and extremely low Electricity loss, the use of superconducting materials made motors have higher power density, smaller size and higher efficiency. [0003] 2. However, wires or strips made of superconducting materials have large AC losses when passing AC power. DC superconducting applications are relatively effective development directions, and unipolar structures are undoubtedly b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K55/06
CPCH02K55/06
Inventor 不公告发明人
Owner 尹衍国
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