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Current transformer power module main body apparatus and its processing method

The technology of a power module and processing method is applied in the main device of the converter power module and its processing field, which can solve the problems of reduced reliability and stability of the system, poor electrical performance of the main circuit, inconvenient installation and disassembly, etc. Achieve the effect of saving wiring space, reducing volume and improving space utilization

Inactive Publication Date: 2009-04-08
CHINA CNR CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. It is very difficult to use cable wiring in a small and compact power module and it is difficult to bend and shape
[0004] 2. A large stray inductance is generated, which deteriorates the electrical performance of the main circuit
[0005] 3. Excessive IGBT turn-off overvoltage will easily damage the IGBT, thereby reducing the reliability and stability of the system
[0006] 4. Inconvenient to install and disassemble

Method used

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  • Current transformer power module main body apparatus and its processing method
  • Current transformer power module main body apparatus and its processing method
  • Current transformer power module main body apparatus and its processing method

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-7 As shown, a converter power module main body device includes a busbar main body 10, an IGBT1, an intermediate support capacitor 2, and a surge absorbing capacitor 3. The busbar main body 10 is in the shape of " ” shape, the long side is horizontal to the right, and the short side is vertically downward. The positive insulating paper 4, the positive copper bar 5, the positive and negative insulating paper 6, the negative copper bar 7, the negative insulating paper 8, and the middle copper bar 9 are overlapped successively. The intermediate support capacitor 2 is fixed above the long side of the busbar main body 10 by screws 11, the surge absorbing capacitor 3 is fixed on the inner side of the short side of the busbar main body 10 by screws 11, and the IGBT1 is fixed on the busbar main body by screws 11. 10 outside the short side, there are two wiring...

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Abstract

The invention discloses a converter power module body device and a processing method thereof. The body device comprises a busbar body, an IGBT, an intermediate support capacitor and a surge absorption capacitor, and the busbar body is ' '-shaped, the intermediate support capacitor is fixed above the long side of the busbar body by a screw, the surge absorption capacitor is fixed inside the short side of the busbar body by a screw and the IGBT is fixed outside the short side of the busbar body by a screw. The processing method includes processing a copper plate into a copper bar with a boss and a hole, compounding insulating paper from multilayer Tyvek, arranging three pieces of insulating paper and three copper bars in sequence to be folded and pressed and forming the busbar body, and installing parts on the busbar body. Due to the advantages of convenient wiring, wiring space saving, convenient installation and disassembly and the reduction of stray induction on a main circuit, the body device facilitates the improvement of electrical property, thus enhancing the working stability of a converter system.

Description

technical field [0001] The invention relates to a converter power module main body device and a processing method thereof, especially for AC-DC conversion, DC-AC conversion, AC-DC conversion of railway locomotives, light rail cars, subway trains, magnetic levitation trains, and industrial frequency converters. - Main device of AC converter power module and processing method thereof. Background technique [0002] At present, the power supply products of converters developed by power electronic technology have been widely used in various fields such as electric power, military industry, industry, commerce, agriculture, etc. With the development of society and the progress of technology, converters are rapidly moving towards small size and large capacity. The direction of development, and the core of the electrical and structural aspects of the converter is the power module. The wiring method of the existing power module is to directly use cables as wires to connect the electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H05K7/02H05K13/00
CPCH01G9/26
Inventor 张可飞蒲延洲董宇飞马惠春付强
Owner CHINA CNR CORPORATION
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