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发明授权
CN107044692B 多联机系统及其除霜控制方法和装置 有权

多联机系统及其除霜控制方法和装置
摘要：
本发明公开了一种多联机系统及其除霜控制方法和装置，其中，所述多联机系统的室外机包括第一室外换热器和第二室外换热器，所述方法包括以下步骤：获取第一室外换热器的中部温度和第二室外换热器的中部温度；当多联机系统以制热模式运行时，根据第一室外换热器的中部温度和第二室外换热器的中部温度判断是否满足除霜开始的条件；如果满足除霜开始的条件，则控制多联机系统切换至除霜模式运行以进行除霜；当多联机系统以除霜模式运行时，根据第一室外换热器的中部温度和第二室外换热器的中部温度判断是否满足除霜结束的条件；如果满足除霜结束的条件，则控制多联机系统切换至制热模式运行。根据本发明的方法，能够提高多联机系统的除霜效果。
摘要（英）：

The invention discloses a multi-split system as well as a defrosting control method and device for the multi-split system. An outdoor unit of the multi-split system comprises a first outdoor heat exchanger and a second outdoor heat exchanger. The method comprises the steps as follows: the middle temperature of the first outdoor heat exchanger and the middle temperature of the second outdoor heat exchanger are acquired; when the multi-split system runs in a heating mode, whether the defrosting starting conditions are met is judged according to the middle temperature of the first outdoor heat exchanger and the middle temperature of the second outdoor heat exchanger; if the defrosting starting conditions are met, the multi-split system is controlled to be switched to run in a defrosting mode for defrosting; when the multi-split system runs in the defrosting mode, whether the defrosting ending conditions are met is judged according to the middle temperature of the first outdoor heat exchanger and the middle temperature of the second outdoor heat exchanger; and if the defrosting ending conditions are met, the multi-split system is controlled to be switched to run in the heating mode. According to the method, the defrosting effect of the multi-split system can be improved.

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