Frequency converter and air conditioner

Abstract

The invention discloses a frequency converter and an air conditioner. The frequency converter (100) comprises a cabinet body, an air cooling device and a plurality of air duct partition plates (16), wherein the plurality of air duct partition plates (16) separate a cabinet cavity into a plurality of module chambers for installing different modules respectively, the air duct partition plates (16) of the module chambers are provided with respective module chamber air inlets and module chamber air outlets, a circulating air flow passage flowing through the module chamber air inlets and the modulechamber air outlets is formed in the cabinet cavity, and the air cooling device is arranged in the circulating air flow passage. The frequency converter disclosed by the invention realizes the circulating heat dissipation in the cabinet cavity by setting the circulating air flow passage in the cabinet cavity through adopting the air passage partition plates, and is conductive to improving the heat dissipation effect of the frequency converter, reducing the working noise thereof and saving the production and installation costs.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a frequency converter and an air conditioner. Background technique [0002] Existing inverters usually use air-cooled or water-cooled structures for heat dissipation, so as to reduce the risk of overheating damage to internal components, thereby improving stability and reliability. [0003] However, due to the large cooling load demand of the inverter, when the air cooling technology is used for heat dissipation, a larger fan is required to provide sufficient air output, resulting in fan noise and the overall volume of the inverter being too large. In addition, when the fan is exhausting air, in order to avoid the ambient temperature of the unit from rising, an additional air conditioning system needs to be installed in the machine room, thus increasing the heat dissipation cost. [0004] On the other hand, when water cooling technology is used for heat dissipat...

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Problems solved by technology

[0003] However, due to the large cooling load demand of the inverter, when the air cooling technology is used for heat dissipation, a larger fan is required to provide sufficient air output, resulting in fan noise and the overall volume of the inverter being too large

In addition, when the fan is exhausting air, in order to avoid the ambient temperature of the unit from rising, it is necessary to install an additional air conditioning system in the machine room, thus increasing the cooling cost

[0004] On the other hand, when water-cooling technology is used for heat dissipation, an external water supply system is usually required. After a certain period of use, scale will form in the water supply pipeline, resulting in poor heat exchange effect

In addition, due to the high conductivity of water, once the water supply pipeline leaks, it will cause the circuit of the inverter to be short-circuited, resulting in damage to internal components and low reliability

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