Oil and coolant control device and method for air conditioner, air conditioning system and air conditioner

Abstract

The invention relates to an oil and coolant control device and an oil and coolant control method for an air conditioner, an air conditioning system and the air conditioner. The oil and coolant control device comprises a controller, a gas and liquid separator, a liquid separator and an oil discharge control assembly, and the oil and coolant control device is provided with at least a set of connecting mouths used for connecting an outdoor machine and at least a set of connecting mouths used for connecting an indoor machine, wherein the outdoor machine and the indoor machine are connected through the connecting mouths and pipelines to form a coolant circulating system. The coolant circulating system can achieve cooling or heating functions, simultaneously obtains capabilities needed by the indoor machine through the controller, and can control and allocate flow of oil and coolants in the indoor machine and the outdoor machine of the air conditioner. The oil and coolant control device and the oil and coolant control method for the air conditioner, the air conditioning system and the air conditioner have the advantages of freely performing combination control on the indoor machine and the outdoor machine of the air conditioner, thereby saving resources and improving use efficiency, and furthermore applying to various air conditioners.

Description

technical field [0001] The invention relates to air-conditioning control technology, in particular to an oil and refrigerant control device and method for a household air-conditioner, an air-conditioning system and an air-conditioner. Background technique [0002] Multi-connected air-conditioning system (abbreviation: multi-connected) is a kind of direct expansion central air-conditioning system with complex structure, internal parameter coupling and various boundary conditions. It has outstanding advantages such as good scalability, beautiful appearance, small installation space, no special machine room, and installment investment. Therefore, since its birth in 1982, its technology has developed rapidly, and it has been widely used in commercial buildings. However, with the improvement of people's living standards, ordinary consumers have begun to use household central air conditioners. According to statistics, by the end of 2012, the share of multi-connected units had rea...

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention is to propose an oil and refrigerant control device and method for air conditioning, an air conditioning system and an air conditioning system for the current problems.

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