Variable frequency air conditioner and radiator of outdoor nit thereof

Abstract

The invention provides a radiator of an outdoor unit of a variable frequency air conditioner. The radiator comprises a condenser, an outdoor electronic expansion valve, an outdoor unit liquid-side stop valve, an evaporator set, a gas-liquid separator and an electronic control box used for electronically controlling the outdoor unit; the condenser, the outdoor electronic expansion valve, the outdoor unit liquid-side stop valve, the evaporator set and the gas-liquid separator are connected in order through an air conditioning line. A radiating line connected to the inlet end of the gas-liquid separator is provided on the air conditioning line between the outdoor electronic expansion valve and the outdoor unit liquid-side stop valve. The radiating line is provided with a modular radiating device mounted within the electronic control box. The modular radiating device comprises a radiating structure and a coolant line communicated with the radiating line; the input end of the coolant line; the input end of the coolant line is provided with an electronic expansion valve which controls coolant flow. The electronic expansion valve at the input end of the coolant line controls the flow of the coolant in the coolant line; part of the coolant flows into the coolant line to dissipate the heat of the electronic control box, thus operational stability of a compressor of the variable frequency air conditioner is guaranteed. The invention further provides the variable frequency air conditioner.

Description

technical field [0001] The invention relates to the technical field of air-conditioning equipment, and more specifically, relates to an inverter air conditioner and a cooling device for an outdoor unit of the air conditioner. Background technique [0002] There are a large number of electronic heating elements in the electric control box of the inverter air conditioner outdoor unit, and the inverter compressor drive module is the core and most important element in the electric control box of the inverter outdoor unit, and it is also the largest heating element. The module generates a lot of heat when the compressor is working. If the heat is not dissipated in time and kept within a reasonable range, the variable frequency drive module will usually be burned out. [0003] The electric control box of the traditional inverter air conditioner outdoor unit generally uses the negative pressure generated when the fan running on the outdoor unit rotates to flow the wind from the ins...

AI Technical Summary

Problems solved by technology

The module generates a lot of heat when the compressor is working. If the heat is not dissipated in time and kept within a reasonable range, the variable frequency drive module will usually be burned out.

[0003] The electric control box of the traditional inverter air conditioner outdoor unit generally uses the negative pressure generated when the fan running on the outdoor unit rotates to flow the wind from the inside of the electric control box to take away the heat emitted by various electronic components, but this method is limited by The working environment of the outdoor unit of the inverter air conditioner and the influence of the outdoor ambient temperature, in some harsh environments, this heat dissipation method is not enough to take away the heat so that the most important heating element of the inverter air conditioner - the inverter drive module is maintained at a safe working temperature

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