A frequency conversion cabinet and an anti-condensation method for the frequency conversion cabinet
A frequency conversion cabinet and cabinet body technology, applied in the field of frequency conversion cabinets, can solve the problems of condensation, poor sealing, hidden dangers of the reliability of electrical components in the frequency conversion cabinet, etc., and achieve the effect of preventing condensation, ensuring reliability, and maintaining dryness.
Active Publication Date: 2019-04-09
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] However, whether it is a water-cooled radiant panel or a low-temperature refrigerant radiant panel, due to the poor sealing of the cabinet body of the frequency conversion cabinet and the phenomenon of thermal expansion and contraction of the air, during the working process, when the humid air outside the cabinet enters the cabinet, it will be on the surface of the radiant panel or Condensation occurs on the surface in direct contact with the radiant panel, which poses hidden dangers to the reliability of electrical components in the inverter cabinet
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Embodiment 1
[0025] This preferred embodiment provides a frequency conversion cabinet, which is preferably but not limited to a frequency conversion cabinet for a photovoltaic direct-driven centrifugal compressor, or any other frequency conversion cabinet that is prone to condensation.
[0026] see figure 1 , the frequency conversion cabinet of this preferred embodiment includes a cabinet body 1, an air supply device 2 and a heat exchanger 3 are arranged at the air inlet of the cabinet body 1, and the cold fluid in the heat exchanger 3 is sent into the cabinet body by the air supply device 2 1 for gas cooling and dehumidification. The air supply device 2 is preferably but not limited to a low-speed fan, which can supply air to the cabinet body 1 of the frequency conversion cabinet at an appropriate speed.
[0027] In this embodiment, the heat exchanger 3 is used to pre-dehumidify the gas sent into the cabinet body 1 of the frequency conversion cabinet by the air supply device 2. After the...
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The invention discloses a frequency conversion cabinet and a frequency conversion cabinet anti-condensation method, which belong to the technical field of anti-condensation of frequency conversion cabinets, and are designed for solving the problem that condensation is prone to occur in the existing frequency conversion cabinet. The frequency conversion cabinet comprises a cabinet body, wherein an air supply device and a heat exchanger are arranged at an air inlet of the cabinet body, and a cold fluid in the heat exchanger cools and dehumidifies a gas supplied into the cabinet body by the air supply device. The frequency conversion cabinet and the anti-condensation method based on the same can prevent the formation of condensation in the cabinet body, and the reliability of the frequency conversion cabinet is high.
Description
technical field [0001] The present invention relates to the technical field of anti-condensation of frequency conversion cabinets, in particular to a frequency conversion cabinet and a method for preventing condensation of frequency conversion cabinets based on the frequency conversion cabinet. Background technique [0002] Usually, there are heating components in the frequency conversion cabinet that need to be cooled down. For example, the onboard high-power frequency conversion cabinet of a photovoltaic direct-drive centrifugal chiller has a rectification and inverter unit. Cooling and heat dissipation. At present, the cooling and heat dissipation of high-power frequency conversion cabinets include air-cooled direct blowing, water-cooled radiant panels, and low-temperature refrigerant radiant panels. The air-cooled direct blowing effect is poor, and the fan is easily damaged; the water-cooled radiant panel needs an additional water source and a water pump, and the effect...
Claims
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IPC IPC(8): H02M7/00H05K7/20
CPCH02M7/003H05K7/20945
Inventor 张威何林黄童毅肖彪
Owner GREE ELECTRIC APPLIANCES INC