Frequency converter with intra-cavity environment detection function and working method thereof

Abstract

The invention discloses a frequency converter with an intra-cavity environment detection function and a working method of the frequency converter. The frequency converter comprises a CPU chip, a firsttemperature sensor, a first heat radiator, a first semiconductor patch, an IGBT chip, a second temperature sensor, a second heat radiator, a second semiconductor patch, a rectifier, a third temperature sensor, a third heat radiator, a third semiconductor patch, a filter, a fourth temperature sensor, a fourth heat radiator, a fourth semiconductor patch, an inverter, a fifth temperature sensor, a fifth heat radiator, a fifth semiconductor patch, a harmful gas sensor, a humidity sensor, a smoke sensor, a wireless transmission chip, a capacitor and a heat dissipation shell. The working state of each chip can be found in time through real-time monitoring of the temperature sensor on the chips, the stable working temperature is maintained through the semiconductor patch, and the obtained environmental parameters are uploaded for real-time environmental monitoring.

Description

technical field [0001] The invention relates to the technical field of frequency converters, in particular to a frequency converter with an internal cavity environment detection function and a working method thereof. Background technique [0002] The frequency converter is mainly composed of rectification, filtering, inverter and other electronic devices, relying on the internal IGBT chip to adjust the output. In practical applications, it often encounters harsh environments that exceed the maximum or minimum limit temperature specified by the frequency converter. Therefore, in high temperature When the temperature is low, the inverter will be cooled by means of optimizing the heat dissipation air duct, water cooling and air conditioning heat dissipation. When the temperature is low, the inverter is usually heated by adding an auxiliary heat source such as an electric heater inside the inverter cavity. [0003] However, different structures and circuit schemes are used for h...

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Problems solved by technology

[0003] However, different structures and circuit schemes are used for high temperature / low temperature, which will lead to poor versatility of the equipment, complex structure, and high cost; and the addition of electric heaters to heat the air around the device, for IGBTs that are close to the radiator The heating effect of chips and other devices is not good; at the same time, the installation of electric heating devices will also be limited by the space of the inverter cavity and the equipment structure; in addition, ordinary inverters do not have functions such as leakage detection and environmental monitoring, and the use safety is poor

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