Three-phase power supply and collection device for maglev train

Patent metadata

Field	Value
Publication number	US-11897345-B2
Application number	US-201917255777-A
Country	US
Kind code	B2
Filing date	Jun 21, 2019
Priority date	Jun 25, 2018
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

The present invention provides a three-phase power supply and collection device for a maglev train. A cross beam is arranged at the middle part of the bogie of the maglev train, and the lower surface of the cross beam is provided with three sets of longitudinal bearing seats, and three insulating bushes, three collector shoes and three power supply rails corresponding to the longitudinal bearing seats; the two ends of the horizontal part of each insulating bush is a rotating shaft structure, and the vertical part of the insulating bush is a hollow tubular structure; the upper part of each collector shoe is the shoe handle, the lower part is the shoe body, and the bottom of the shoe body is in a concave semicircular shape; the top surface of each power supply rail is in a convex semicircular shape.

First claim

The invention claimed is:

1. A three-phase power supply and collection device for a maglev train, comprising power supply rails, collector shoes and cables, wherein a cross beam is arranged at a middle part of a bogie of the maglev train, and a lower surface of the cross beam is provided with three sets of longitudinal bearing seats on the left, middle and right sides; a left insulating bush, a middle insulating bush and a right insulating bush are provided, corresponding to the longitudinal bearing seats, wherein each insulating bush is a T-shaped structure, the two ends of the horizontal part of the insulating bush have a structure of rotating shaft and are fixed to the bearing seat via a bearing respectively, and the vertical part of the insulating bush is a hollow tubular structure; a left collector shoe, a middle collector shoe and a right collector shoe are provided, corresponding to the left insulating bush, the middle insulating bush and the right insulating bush, wherein each collector shoe is a conductor and generally is an inverted T-shaped structure, an upper vertical part of the collector shoe is a shoe handle of the collector shoe, a lower horizontal part of the collector shoe is a shoe body of the collector shoe, and a lower surface of the shoe body is a concave semicircular contact surface; three power supply rails are provided corresponding to the collector shoes, including a left power supply rail, a middle power supply rail and a right power supply rail, wherein a top surface of each power supply rail is convex semicircular contact surface, and a bottom of the power supply rail is fixed on an insulated track bed; the left power supply rail, the middle power supply rail and the right power supply rail are respectively connected with three-phase power supply, and their contact surfaces contact with the contact surfaces of the left collector shoe, the middle collector shoe and the right collector shoe respectively to collect power; the shoe handle in clearance fit with the vertical part of the hollow insulating bush is a cylinder, and a top end of the shoe handle is connected with a cable, which passes through the vertical part of the insulating bush and is led out from a top end of the insulating bush and connected with a three-phase converter on the maglev train; the three-phase power supply provides power to the three-phase converter of the maglev train via the power supply and collection device composed of power supply rails, collector shoes and cables.

2. The three-phase power supply and collection device for a maglev train according to claim 1 , wherein the contact force between the collector shoe and the power supply rail that are associated with each other is equal to the gravity of the collector shoe; the weight of each of the left collector shoe, the middle collector shoe and the right collector shoe is 2-5 kg.

3. The three-phase power supply and collection device for a maglev train according to claim 1 , wherein clearance is reserved between a bottom end of the insulating bush and a top of the shoe body of the collector shoe, and the clearance is greater than a suspension air gap of the maglev train, and the length of the shoe handle of the collector shoe is greater than half of the length of the vertical part of the insulating bush.

4. The three-phase power supply and collection device for a maglev train according to claim 1 , wherein the length of the cable is greater than the length from the top end of the shoe handle to a input side of the three-phase converter of the maglev train when the maglev train is suspended.

5. The three-phase power supply and collection device for a maglev train according to claim 1 , wherein a protective cover is arranged on the insulated track bed, and a bottom surface of a horizontal part in the protective cover is higher than a top end of the shoe body of the collector shoe.

6. The three-phase power supply and collection device for a maglev train according to claim 1 , wherein an axis of the rotating shaft is parallel to a running direction of the power supply rail.

Assignees

• Univ Southwest Jiaotong

Inventors

• Li Qunzhan
• Wu Jiqin

Classifications

• B60L5/39 Primary

  from third rail · CPC title

• B60L5/36

  with means for collecting current simultaneously from more than one conductor, e.g. from more than one phase · CPC title

• B60L13/10

  Combination of electric propulsion and magnetic suspension or levitation · CPC title

• B60M1/30

  Power rails · CPC title

• B60M1/34 Primary

  in slotted conduits · CPC title