Integrated electromagnet and maglev train

Patent metadata

Field	Value
Publication number	US-12358378-B2
Application number	US-202117760770-A
Country	US
Kind code	B2
Filing date	Jan 26, 2021
Priority date	Mar 23, 2020
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.

First claim

The invention claimed is:

1. An integrated electromagnet, comprising a magnetic yoke and magnetic poles in two rows that are located on a surface of the magnetic yoke facing a guide plate, the magnetic poles in one row correspond to the magnetic poles in the other row one by one, and an axis of a magnetic core in the magnetic pole is perpendicular to the surface of the magnetic yoke facing the guide plate;
wherein the magnetic poles comprise a first magnetic pole and a second magnetic pole, the first magnetic pole and the second magnetic pole in a row are arranged alternately, the first magnetic pole in any row is adjacent to the second magnetic pole in the other row, the first magnetic poles in a row are connected in series with each other and connected to a one-way output controller, and the second magnetic poles in a row are connected in series with each other and connected to a bidirectional output controller; and
wherein in a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to a polarity of the magnetic poles in the other row; a current output by the bidirectional output controller in a braking state has a direction opposite to a current output by the bidirectional output controller in the guiding state,
wherein a cross section of the magnetic pole along a direction perpendicular to the axis of the magnetic core is in a rounded square shape, and the magnetic pole comprises the magnetic core, a winding, an insulating layer, a short interface and a long interface;
wherein the insulating layer covers a side wall of the insulating layer, the winding is wound around the magnetic core along a surface of the insulating layer facing away from the magnetic core; the short interface is electrically connected to one port of the winding, the long interface is electrically connected to the other port of the winding, and both the short interface and the long interface extend to one end surface of the magnetic pole along the axis of the magnetic core,
wherein a cross section of the magnetic core along a direction perpendicular to the axis of the magnetic core is in a chamfered square shape, and the magnetic pole further comprises an insulating support block; wherein the insulating support block is located at four corners of the magnetic core, and the insulating layer covers the magnetic core and the insulating support block.

2. The integrated electromagnet according to claim 1 , wherein the first magnetic pole and the second magnetic pole in a row are alternately arranged one by one.

3. The integrated electromagnet according to claim 2 , wherein the number of the magnetic poles in a row is an even number.

4. The integrated electromagnet according to claim 1 , wherein a wear plate is provided on a surface of the magnetic poles facing the guide plate.

5. The integrated electromagnet according to claim 4 , wherein the magnetic yoke is fixedly connected with three load-bearing battens, the three load-bearing battens are parallel to each other, and an axis of the load-bearing batten is parallel to an arrangement direction of the magnetic poles in a row.

6. The integrated electromagnet according to claim 5 , wherein a back box is provided on a side of the magnetic yoke facing away from the guide plate, and the back box is fixedly connected to the load-bearing battens.

7. The integrated electromagnet according to claim 6 , further comprising a Y-direction connection subassembly, wherein each Y-direction connection subassembly is fixedly connected to surfaces of the three load-bearing battens facing away from the guide plate.

8. A maglev train, comprising the integrated electromagnet according to claim 1 .

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Jiang Fujie
• Han Weitao
• Deng Guimei
• Wu Donghua
• Yang Changfeng

Classifications

• H01F7/06 Primary

  Electromagnets; Actuators including electromagnets {(electric coils H01F5/00; devices for holding workpieces using electric force B23Q3/15; load-engaging elements for lifting articles electromagnetically B66C1/06; electromagnetic couplings F16D27/00; magnetic brakes F16D63/002; electromagnetically operated valves F16K11/24, F16K31/00; analysing materials by magnetic means G01N27/72, G01N27/80; electromagnets for winding mechanical clocks G04C1/02; electromagnetic relays H01H51/00; windings for salient poles of dynamo-electric machines H02K3/18; electromagnets for telegraphic communication H04L; for arc lamps H05B31/28)} · CPC title

• B61H7/08

  electromagnetically operated · CPC title

• B60Y2200/30

  Railway vehicles · CPC title

• B60L2200/26

  Rail vehicles · CPC title

• B60L13/06 Primary

  Means to sense or control vehicle position or attitude with respect to railway · CPC title