Cascaded power bus bar used for magnetic suspending train wave cutter

A technology of maglev train and chopper, which is applied in the directions of busbar installation, cable installation, electrical components, etc., can solve the problem of affecting the normal operation of the maglev train suspension chopper, affecting the reliability of the maglev train suspension chopper, and the occupation of wires. The internal space of the chassis and other issues can reduce the proximity effect, reduce the number of connecting lines, and improve system reliability.

Inactive Publication Date: 2009-09-23
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following problems: (1) Due to the large number of power terminals of multiple power modules, the number of wires to be connected is large, and the installation process is time-consuming and laborious; (2) More wires occupy a larger chassis The internal space is not convenient for the installation of other electronic devices; (3) Too many connecting wires are prone to wiring faults, and the interference between components is also large, which will affect the reliability of the levitation chopper of the maglev train; at the same time, its daily maintenance is also difficult Very difficult; (4) The power module works under high current and high voltage, and the wiring is easy to form high temperature during the working process, which causes improper heat dissipation of the power device and affects the normal operation of the levitation chopper of the maglev train

Method used

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  • Cascaded power bus bar used for magnetic suspending train wave cutter
  • Cascaded power bus bar used for magnetic suspending train wave cutter
  • Cascaded power bus bar used for magnetic suspending train wave cutter

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specific Embodiment approach

[0023] Figure 1~5 Shown is a specific embodiment of the present invention: a laminated power bus bar for a levitation chopper of a maglev train, an insulating top plate 11, a conductive positive plate 12, an insulating separator 13, and a conductive negative plate 14 The mother board 1 is formed by stacking and bonding with the insulating bottom board 15 in sequence.

[0024] figure 1 , 2 , 4 show that the mother board 1 of this example is provided with a power terminal connection hole group 2 adapted to the power module power terminal, which includes a power terminal positive polarity hole 21, a power terminal negative polarity hole 22 and a power terminal output hole 23 ; Motherboard 1 is also provided with a positive hole 31 and a negative hole 32, the two form a connecting hole pair 3. All connection holes on the motherboard are tightly embedded with conductive rings 5, and an insulating ring 4 is separated between the positive polarity hole 21 and the positive hole 31...

Embodiment 2

[0029] Figure 6 , 7 It shows that the structure of this example is basically the same as that of Example 1, the only difference is that the conductive ring 5 of this example is not a monolithic structure, but is composed of sections: the power terminal positive polarity hole 21 1. The conductive ring 5 on the positive hole 31 is tightly connected by the upper and lower sections and the part where the positive plate 12 extends into the two sections to form a conductive ring 5 electrically connected to the positive plate 12; and the power terminal negative hole 22. The conductive ring 5 on the negative electrode hole 32 is closely connected with the upper and lower sections and the embedded part of the negative plate 14 inserted between the two sections to form a conductive ring 5 electrically connected to the negative plate 14 . In the process of bonding and pressing each layer of material into a laminated busbar, the segmented conductive ring 5 can be conveniently assembled ...

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Abstract

A laminated power bus bar for a levitation chopper of a maglev train, its insulating top plate, conductive positive plate, insulating partition plate, conductive negative plate and insulating bottom plate are stacked and bonded in sequence to form a motherboard; the motherboard There is a set of power terminal connection holes on the board that is compatible with the power terminal of the power module, including the positive polarity hole of the power terminal, the negative polarity hole of the power terminal and the output hole of the power terminal; Form connection hole pairs; all connection holes on the motherboard are tightly embedded with conductive rings, and there is an insulating ring between the positive polarity hole and positive hole of the power end and the negative plate of the motherboard; the negative polarity hole of the power end, the negative hole and the positive plate There is an insulating ring between them; there is an insulating ring between the conductive ring of the output hole of the power end and the positive and negative plates. The advantages are: less wiring in the levitation chopper, small space occupation, low installation and maintenance costs, good heat dissipation of power devices, effective suppression of mutual interference between components, and improvement of reliability of the levitation chopper for maglev trains.

Description

technical field [0001] The invention relates to a power bus bar used by a levitation chopper of a maglev train. Background technique [0002] The levitation chopper of the maglev train is an important part of the control system of the maglev train, and it is the key to ensure the normal levitation height of the maglev train, thereby ensuring the normal operation of the maglev train. The power module in the chopper of the maglev train, such as the insulated gate bipolar transistor (IGBT) module, is an indispensable key device in the chopper. During the use of the power module, it also needs to be connected with other components such as power supply and large capacitor. At present, the connection mode between the power module and other components in the suspension chopper is usually connected by wires and terminals. This method has the following problems: (1) Due to the large number of power terminals of multiple power modules, the number of wires to be connected is large, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R25/16H02G5/00
Inventor 张昆仑董金文刘放刘国清郭育华李熹靖永志王滢王莉郭小舟
Owner SOUTHWEST JIAOTONG UNIV
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