An anti-corrosion and explosion-proof intelligent ipm frequency conversion module

Abstract

The invention discloses an anti-corrosion, explosion-proof smart IPM frequency conversion module. In the prior art, a frequency conversion module employs such technique featuring that the PCB adopts direct insertion components and cooperates with manual welding. This technique requires more processes, making it a complex one with low production efficiency. The frequency conversion module of the invention comprises a PCB, eight IGBT modules, a front cover plate, IPM plastic frames and a back cover plate. Each of the eight IGBT power modules comprises a heat radiation plate at the bottom, a ceramic copper substrate, a plurality of power chips, an IGBT plastic frame, a plastic sealing cover, and a position limiting post. According to the invention, while the anti-corrosion performance of the module is increased, the maintenance work can be done conveniently after a fault is detected, therefore, reducing the repair cost and increasing the utilization efficiency. For the design of a quartz ceramic explosion-proof device to the module, explosion can be prevented.

Description

Technical field [0001] The invention belongs to the field of electronic component manufacturing, and specifically relates to an anti-corrosion and explosion-proof intelligent IPM frequency conversion module. Background technique [0002] As the core component of the inverter, the IPM module integrates power switching devices and drive circuits, and is equipped with corresponding fault detection circuits. Its performance determines the reliability and maintainability of the inverter to a certain extent. The existing frequency conversion module PCB adopts the production process of in-line components and manual welding, which has many production and installation procedures, complex processes and low production efficiency. Due to the in-line installation method and unreasonable packaging form of the components, the fault finding and maintenance process of this type of frequency conversion module is complicated after a failure, resulting in increased maintenance costs. The existing I...

AI Technical Summary

Problems solved by technology

The existing frequency conversion module PCB adopts the production process of in-line components and manual welding, which has many production and installation processes, complex processes and low production efficiency.

Due to the in-line installation method and unreasonable packaging form of the components, the fault finding and maintenance process of this type of frequency conversion module is complicated after a fault occurs, resulting in an increase in maintenance costs

The existing IPM frequency conversion module is not equipped with over-current hardware protection function. When the fault occurs and the current is too large, the protection is not timely, which often causes the entire high-voltage circuit of the IPM frequency conversion module to fail, reducing the reliability of the product.

In addition, the internal components of the IPM frequency conversion module are relatively loosely arranged, and there is still room for further optimization to further reduce the module volume

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