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Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit

A technology of temperature and humidity control and frequency converter, which is applied in output power conversion devices, high-efficiency regulation technology, cooling/ventilation/heating renovation, etc. , the effect of reducing relative humidity

Active Publication Date: 2021-12-31
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a temperature and humidity control method and device for a frequency converter, a frequency converter and an air-conditioning unit to solve the problem that the internal temperature and humidity control scheme of the frequency converter in the prior art will lead to a complex internal structure of the frequency converter and high cost question

Method used

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  • Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit
  • Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit
  • Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit

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Embodiment 1

[0050] This embodiment provides a temperature and humidity control method for a frequency converter, figure 1 It is a flowchart of a temperature and humidity control method according to an embodiment of the present invention, such as figure 1 As shown, the method includes:

[0051] S101, after the frequency converter is powered on, acquire the temperature value and the relative humidity value inside the frequency converter housing.

[0052] During specific implementation, the above temperature and relative humidity values ​​can be detected by a temperature sensor and a humidity sensor, which are arranged inside the inverter housing and can be connected to the main control board of the inverter through a wireless connection or a signal transmission line. Connect to transmit the detected temperature value and relative humidity value to the main control board.

[0053] S102, according to the temperature value and the relative humidity value inside the inverter casing, control t...

Embodiment 2

[0057] This embodiment provides another temperature and humidity control method for an inverter. In this embodiment, in order to accurately control the temperature and relative humidity inside the inverter housing, the above step S102 specifically includes: judging that the temperature value is greater than or equal to the first threshold, and whether the relative humidity value is less than or equal to the second threshold; if yes, it indicates that the current temperature and relative humidity inside the inverter casing meet the operating conditions of the inverter. Control the inverter to start running. After the inverter starts running, the charging and discharging resistors are powered on or off according to the inherent control logic inside the inverter.

[0058] After judging whether the temperature value is greater than or equal to the first threshold value and the relative humidity value is less than or equal to the second threshold value, if the judgment result is no...

Embodiment 3

[0076] This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method for controlling the temperature and humidity of the frequency converter in the above-mentioned embodiment is implemented.

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Abstract

The invention discloses a temperature and humidity control method and device of a frequency converter, the frequency converter and an air conditioning unit. The method comprises the following steps: after the frequency converter is powered on, acquiring a temperature value and a relative humidity value in a shell of the frequency converter; and controlling the power-on states of a charging resistor and a discharging resistor in the converter according to the temperature value and the relative humidity value. According to the invention, the temperature and the relative humidity in the frequency converter shell can be controlled on the basis that the hardware structure in the frequency converter is not increased, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of unit technology, in particular to a temperature and humidity control method and device for a frequency converter, a frequency converter and an air conditioning unit. Background technique [0002] Since the electronic components inside the frequency converter have high requirements on temperature and relative humidity during operation, when the ambient temperature is too low or the humidity is too high, the temperature is too low, which will reduce the service life of the components. In addition, when the internal temperature of the inverter is too low, if the humidity is too high, condensation will occur inside the cabinet, reducing the reliability of the inverter operation. [0003] At present, the commonly used dehumidification methods for frequency converters are usually heating with a moisture-proof moisture-absorbing bag or a heating unit such as a heater. The moisture-proof moisture-absorbing bag needs to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H02M1/00
CPCH05K7/20H05K7/20136H05K7/20209H02M1/00Y02B70/10
Inventor 周叶段成杰梅正茂刘玉乾
Owner GREE ELECTRIC APPLIANCES INC