A power unit module of a frequency converter with an open frame structure

A frame structure and power unit technology, applied in the field of frequency converters, can solve the problems of difficulty for assembly workers, long time, and difficult assembly, and achieve the effect of facilitating assembly and maintenance, avoiding damage to power devices, and ensuring uniformity.

Pending Publication Date: 2019-01-15
RONGXIN HUIKO ELECTRIC TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The simple, fast and easy-to-understand assembly and maintenance methods solve the problems of difficult assembly, long time, and difficulty for new assembly workers

Method used

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  • A power unit module of a frequency converter with an open frame structure
  • A power unit module of a frequency converter with an open frame structure
  • A power unit module of a frequency converter with an open frame structure

Examples

Experimental program
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Embodiment Construction

[0032] The specific embodiments provided by the present invention will be described in detail below.

[0033] like figure 1 and Figure 7 As shown, an inverter power unit module with an open frame structure includes a power device crimping module unit 1 and a capacitor unit 4, and the power device crimping module unit 1 is connected to the bus bar 2 of the capacitor unit 4 through a composite bus bar 3 connect.

[0034] like Figure 2-3 As shown, the power device crimping module unit 1 includes a frame composed of an upper top plate 6 , a bottom plate 5 and a support column 7 and a power device crimping module 8 inside the frame. The power device crimping module 8 is two power device crimping modules 8-1 and 8-2 with independent frame structures, and the two power device crimping modules 8-1 and 8-2 are fastened with bolts and installed side by side In the frame, the two end faces of the longest side respectively expose the openings of the top plate 6 and the bottom plate ...

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Abstract

The invention provides a power unit module of a frequency converter with an open frame structure, which is a power unit module of a water-cooled heat dissipation structure, comprising a power device crimping module unit, comprising a frame composed of an upper top plate, a bottom plate and a support column and two power device crimping modules in the frame; The two power device crimping modules are two independent frame structure power device crimping modules, the top plate and the bottom plate openings of the frame are exposed on two end faces respectively, the two power device crimping modules realize the electrical connection of the power devices in the two power device crimping modules through a composite bus bar, Two independent power modules which can be extracted directly from the outside of the frame and a composite bus-bar structure which can be used for parallel connection of two independent power modules simultaneously are adopted to solve the problems of large size and highcost of large-capacity power units, great assembly difficulty, long time and difficulty for new assembling workers to get started.

Description

technical field [0001] The invention relates to the technical field of frequency converters, in particular to a frequency converter power unit module with an open frame structure. Background technique [0002] At present, the power device modules used in large-capacity frequency converters in power systems often use single copper bars to connect with single copper bars. Due to the limited internal space of the power unit and complex layout, the use of single copper bars or cable connections needs to ensure insulation distance. and creepage distance, the size of the power unit increases, and the inductance increases, which affects the reliability and safety of power devices. The intricate copper bar connection or cable connection will cause high assembly difficulty during assembly, and high maintenance will also cause high difficulty. [0003] The inverter power unit module with an open frame structure uses two completely independent press-fitted power device crimping module...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20927
Inventor 顾晓聪王文龙张海涛李定林陈满吴昊彭鹏贺儒飞宇文达余琼张瑜高玉瑞王鑫
Owner RONGXIN HUIKO ELECTRIC TECH CO LTD
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