A frequency converter with an overheat protection system
A technology of overheating protection and frequency converter, applied in the field of frequency converter, can solve the problems of easy damage of the main circuit of the frequency converter, temperature rise of the frequency converter, etc., and achieve the effect of avoiding different temperature thresholds
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[0069] The following is attached Figure 1-3 The present invention is described in further detail.
[0070] Such as figure 1 As shown, a frequency converter with an overheating protection system disclosed in this embodiment includes a main body of the frequency converter, a circuit integrated board installed inside the main body of the frequency converter and burned with a main circuit; it also includes: a temperature detection unit, a frequency converter quarter Temperature threshold database, quarter switching unit, CPU, comparison unit, execution unit.
[0071] Such as figure 1 As shown, the temperature detection unit is installed inside the main body of the inverter for real-time detection of the temperature at the integrated circuit board, and is recorded as T i . Inverter quarterly temperature threshold database, which is set with temperature reference values in different quarters; it defines that the first quarter Q 1 (March to May) the seasonal temperature thres...
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