Mining explosion-proof variable-frequency speed regulation device convenient to maintain

Abstract

The invention discloses a mining explosion-proof variable-frequency speed regulation device convenient to maintain, comprising a shell and a transducer, wherein a guide rail and a supporting rack which is slidably matched with the guide rail are arranged in the shell; the transducer is a voltage type transducer; a filtering capacitor in a flat wave loop of the transducer is fixedly mounted in the shell; and other circuit elements of the transducer are mounted on the supporting frame; the transducer and the circuit part which is fixedly mounted inside the shell are in the circuit connection through a plug connector; a water cooling device is arranged on the supporting frame; a cooling water pipe is arranged in the shell; and the cooling water pipe and a water pipeline in the water cooling device are plugged to form a water cooling loop. With the adoption of the mining explosion-proof variable-frequency speed regulation device convenient to maintain, a modularized movement is formed by the transducer, the supporting frame and the cooling device, and the circuit and the cooling water pipe inside the shell are rapidly connected with each other in a plugging and matching manner, thereby improving the maintenance efficiency.

Description

technical field [0001] The invention relates to a frequency conversion speed regulating device, in particular to a frequency conversion speed regulating device adopting a modular frequency conversion movement. Background technique [0002] The existing frequency conversion speed regulating device generally includes a housing, in which a frequency converter (also called a frequency conversion core) and an auxiliary circuit are provided, and a cooling device is also provided for heat dissipation. [0003] The auxiliary circuit mentioned therein can be set according to the needs, for example, it can be a switching circuit for switching between power frequency and frequency conversion, or an interface circuit, etc., and the frequency converter itself generally includes: [0004] The rectifier is used to transform the power frequency power supply into DC power supply. [0005] The smoothing circuit contains multi-frequency pulsating voltage in the DC voltage rectified by the rec...

AI Technical Summary

Problems solved by technology

[0008] The frequency converter is not only the main part in the whole frequency conversion speed control device, but also a part that is easy to wear and tear, which requires frequent maintenance or replacement parts. However, in the prior art, the frequency converter is fixedly installed in the housing of the frequency conversion speed control device. It is inconvenient to install and the efficiency is very low

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