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

Abstract

The invention discloses an outdoor unit of an air conditioner, the air conditioner, and a control method of the outdoor unit of the air conditioner. The outdoor unit of the air conditioner comprises ashell, a heat exchanger, a drive fan, an outer cover, and a circulation drive device. The shell is provided with air inlets and air outlets; the heat exchanger is arranged in the shell; the drive fanis arranged in the shell so as to drive air to flow to the air outlets from the air inlets; the outer cover is arranged on the shell; a circulating air chamber with an opened bottom part is defined between the outer cover and an outer wall of the shell; the air inlets and the air outlets communicate with the circulating air chamber; and the circulation drive device is arranged in the circulatingair chamber, and is constructed to be capable of driving partial air at the air outlets to flow into the circulating air chamber and flow into the shell through the air inlets. According to the outdoor unit of the air conditioner provided by the invention, the circulating drive device is arranged, so that the condensing temperature of the heat exchanger can be improved, stable high pressure is established, and a refrigeration performance is ensured.

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

Images