Frequency converter

Abstract

The invention discloses a frequency converter and relates to the field of electronic parts. The frequency converter is characterized by comprising a temperature detection module, a central processingunit, a display module, and a computing detection module. Service times of the frequency converter corresponding to the corresponding temperature in the frequency converter are defined as T(1), T(2),T(3)... T(n); temperature corresponding to the standard service time of the frequency converter is X (standard); current temperature signal in the frequency converter detected by the temperature detection module (1) is M; first judgment function Y=|M-X(standard)|, first comparison parameter A (reference) and interference coefficient alpha of other factors upon the service time of the frequency converter under a current working environment are set in the computing detection module (4); the temperature detection module, the computing detection module and the first judgment function enable a worker to quickly know changes of the inner temperature of the frequency converter and corresponding service times, so that the worker can be reminded for changing the frequency converter.

Description

technical field [0001] The invention relates to the field of electronic parts, in particular to a frequency converter. Background technique [0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronic technology to control the AC motor by changing the frequency of the working power supply of the motor. etc. composition. [0003] Existing frequency converters, such as a Chinese utility model patent with an announcement number of CN202957752U, discloses a frequency converter, which includes a fan, a rectifier module, an inverter module, an electrolytic capacitor and a braking unit module, and the fan is arranged on the uppermost layer; The braking unit module and the electrolytic capacitor are arranged in parallel on the lowermost layer; the rectifying module and the inverter module are arranged in parallel in the middle layer formed between the uppermost layer and the lowermost layer. [0004] During the use of the...

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Problems solved by technology

[0004] During the use of the frequency converter, heat will be generated due to internal loss, which will cause the temperature inside the frequency converter to rise, and the temperature will affect the use time limit of the frequency converter during the process of temperature rise. Once the frequency converter reaches the use time limit, timely Replacement, but during the use of the above-mentioned frequency converter, the staff cannot know the temperature inside the frequency converter and the corresponding service time limit, there is room for improvement

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