Air conditioner outdoor unit, control method of air conditioner outdoor unit, and air conditioner

Abstract

The invention discloses an air conditioner outdoor unit, a control method of the air conditioner outdoor unit, and an air conditioner. The air conditioner outdoor unit comprises a shell which is provided with an air inlet and an air outlet; a heat exchanger arranged in the shell; a driving fan arranged in the shell and used for driving air to flow to the air outlet from the air inlet; at least oneair curtain device arranged on the shell; and an air curtain which is formed on the outer side of the shell and can be used for shielding the air inlet or the air outlet. According to the air conditioner outdoor unit disclosed by the embodiment of the invention, when the outdoor temperature is too low, through opening the air curtain device, the air curtain which can be used for shielding the airinlet or the air outlet is formed on the outer side of the shell, so that the supply air rate of the outdoor unit is reduced, and the refrigeration performance is ensured; and when the outdoor temperature rises, the air curtain device is closed, and then the normal air feed of the outdoor unit can be ensured, so that the adverse impact on the refrigeration performance of the air conditioner is avoided.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to an air conditioner outdoor unit, an air conditioner with the air conditioner outdoor unit and a control method for the air conditioner outdoor unit. Background technique [0002] When the outdoor ambient temperature is too low, the condensing pressure of the air conditioner will decrease, resulting in poor cooling performance of the air conditioner. Performance will be worse. [0003] In order to improve the cooling performance of the air conditioner, in related technologies, a windproof panel is generally installed outside the outdoor unit to prevent the outdoor cold wind from directly blowing the heat exchanger and reduce the air intake of the outdoor unit. The cooling performance of the air conditioner, but because this kind of windproof panel is fixed on the outside of the outdoor unit, when the air conditioner is running in heating mode, or when the outdoor ambient te...

AI Technical Summary

Problems solved by technology

[0002] When the outdoor ambient temperature is too low, the condensing pressure of the air conditioner will decrease, resulting in poor cooling performance of the air conditioner. performance will be worse

[0003] In order to improve the cooling performance of the air conditioner, in related technologies, a windproof panel is generally installed outside the outdoor unit to prevent the outdoor cold wind from directly blowing the heat exchanger and reduce the air intake of the outdoor unit. The cooling performance of the air conditioner, but because this kind of windproof panel is fixed on the outside of the outdoor unit, when the air conditioner is running in heating mode, or when the outdoor ambient temperature rises, the windproof panel will hinder the communication between the outdoor air and the heat exchanger. Heat exchange, which affects the performance of the air conditioner

[0004] In addition, the outdoor fan of the multi-connected air conditioner in the related art is often designed with a large air volume, which cannot run stably at a low speed. For example, the outdoor fan can be adjusted in stages within the range of 150rpm-1100rpm, but it cannot be adjusted at 0-150rpm In this range, the air volume of the external fan is either 0, or the air volume is the minimum air volume (at least 20m 3 / min)

When the outdoor ambient temperature is low, even if the external fan works at the minimum air volume, it is impossible to ensure that the heat exchanger is stable at a suitable refrigeration high pressure

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