Air conditioner operation method, heat exchanger, unit heat dissipation structure of heat exchanger and air conditioning unit

Abstract

The invention discloses an air conditioner operation method, a heat exchanger, a unit heat dissipation structure of the heat exchanger, and an air conditioning unit. Acccording to the unit heat dissipation structure of the heat exchanger, the unit comprises draught fans, and the heat dissipation structure comprises ventilation devices which are arranged on the side, opposite to the draught fans, of the heat exchanger and can be switched on and off, a temperature sensing device for detecting the temperature of the draught fans and a controller. Each ventilation device comprises a ventilation opening and a switch valve, when the frosting condition of the heat exchanger reaches a first preset condition, the ventilation devices are started to form convection with the draught fans of the heat exchanger, the temperature of the draught fans is prevented from continuously rising, heating of an air conditioner is guaranteed, and when the frosting condition of the heat exchanger reaches a second preset condition, the ventilation devices are turned off. Compared with the prior art, when a frost layer on the surface of the heat exchanger reaches a certain thickness, a motor can normally dissipate heat, shutdown protection is avoided, and therefore sustainable heat supply of the unit is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner operating method, a heat exchanger and its unit heat dissipation structure, and an air conditioner unit. Background technique [0002] In order to meet the market demand in various environments, the existing modular air-conditioning units need to add winter heating conditions in cold areas to be suitable for cold areas. When heating in winter, the ambient temperature of the air-conditioning units may be low Therefore, frosting is very easy to occur on the surface of the outdoor unit (evaporator) of the unit. Once frosting occurs, the resistance of air flowing through the heat exchanger will increase, the air flow rate will decrease, and the heat transfer effect will be poor. It is very easy to cause the heating performance of the unit to attenuate; even when the frost is serious, the air outlet of the unit is blocked, resulting in the internal static p...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an air conditioner operation method, a heat exchanger and its unit heat dissipation structure, and an air conditioner unit, which solves the problem that the air conditioner unit in the prior art is under low-temperature heating conditions, and the outdoor heat exchanger is severely frosted and cannot continue to operate. Hot Technical Questions

Images