Multi-split air conditioner and control method thereof

Abstract

The invention provides a multi-split air conditioner and a control method thereof. The multi-split air conditioner comprises a compressor, an outdoor heat exchanger, a first air side pipe, a second air side pipe and a liquid side pipe, and further comprises at least one indoor air-conditioning unit and at least one heat storage module, wherein the first air side pipe, the second air side pipe andthe liquid side pipe all communicate between the indoor side and the outdoor side; and the first air side pipe communicates with the exhaust end of the compressor; the indoor air-conditioning unit isconnected between the second air side pipe and the liquid side pipe, and comprises a first indoor heat exchanger and a first pipeline; the first indoor heat exchanger is arranged on the first pipeline; one end of the first pipeline communicates with the second air side pipe; the other end of the first pipeline communicates with the liquid side pipe; a first throttling device is arranged on the first pipeline; and the heat storage module is connected between the second air side pipe and the liquid side pipe. According to the multi-split air conditioner and the control method, the situation thatthe indoor air-conditioning unit is utilized for defrosting the outdoor heat exchanger, so that heat is taken from the indoor space, the indoor temperature fluctuation is easily caused, and the humanbody feels uncomfortable can be effectively avoided.

Description

technical field [0001] The present disclosure relates to the field of multi-connection technology, in particular to a multi-connection air conditioner and a control method thereof. Background technique [0002] With the formulation of the national environmental protection policy and the enhancement of national environmental protection awareness, air conditioning heating has been more and more recognized by the public. However, the problem that air-conditioning heating and defrosting affects indoor comfort has not been resolved. [0003] At present, when the existing air conditioning system is in heating operation, due to the low surface temperature of the outdoor heat exchanger, a frost layer will be generated, which will affect the heat exchange capacity of the heat exchanger. In order to improve the heat exchange effect of the heat exchanger, the current air-conditioning system is basically equipped with a four-way valve to periodically change the defrosting control. How...

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Problems solved by technology

[0005] Therefore, the technical problem to be solved in this disclosure is to overcome the disadvantages in the prior art that the modularized full-function multi-connected air conditioner takes heat from the room when the air conditioner defrosts, which easily causes fluctuations in the indoor temperature and causes discomfort to the human body, thereby providing a multi-connected air conditioner and its control method

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