Unloading valve component for air conditioner and air conditioner

Abstract

The invention discloses an unloading valve component for an air conditioner and the air conditioner, relates to the technical field of air conditionings and is invented aiming at solving the problem that the traditional unloading valve cannot carry out pressure protection on a refrigerating system when the pressure value exceeds the maximum bearing value of the refrigerating system. The unloading valve component for the air conditioner is used for carrying out pressure protection on a refrigerant circulating system of the air conditioner and comprises an unloading valve and an overpressure protection component; the unloading valve is connected in the refrigerant circulating system, and pressure release is carried out on a refrigerant in the refrigerant circulating system by the unloading valve when the pressure of the refrigerant in the refrigerant circulating system is larger than a first preset pressure; the overpressure protection component is composed of a pressure control switch and a pressure sensor; and the pressure sensor can detect the pressure of the refrigerant at the outlet of the unloading valve and transfers a detected refrigerant pressure value to the pressure control switch, and the pressure control switch controls the refrigerant circulating system to stop working when the pressure of the refrigerant at the outlet of the unloading valve is larger than a second preset value. The unloading valve component can be used for the air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an unloading valve assembly for an air conditioner and an air conditioner. Background technique [0002] At present, most air-conditioning systems use R410A refrigerant, and R410A refrigerant is a new type of environmentally friendly refrigerant that does not destroy the ozone layer and has higher cooling (warm) efficiency, but its working pressure is ordinary R22 (a low-temperature refrigerant that can reach -80°C The refrigeration temperature) is about 1.6 times that of the air conditioner, especially when it is operated in an ultra-high temperature environment (the ambient temperature exceeds 50°C), the pressure will exceed the maximum bearing value of the system. In order to protect the normal operation of the system, and the high temperature system has higher reliability, the system needs to be protected by pressure. [0003] An existing unloading valve for an air ...

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Problems solved by technology

[0004] The inventor found that the existing unloading valve for air conditioners has at least the following problems: when the valve port of the unloading valve is opened, if the pressure of the refrigeration system is still rising, the valve port of the unloading valve will always be in an open state. When the pressure of the refrigeration system exceeds its maximum tolerance value, the unloading valve can no longer continue to protect the system

The unloading valve can no longer protect the refrigeration system in ultra-high temperature areas, and can only protect it in general high temperature (ambient temperature does not exceed 50°C) environment

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