Air conditioner control device, air conditioner and air conditioner control method

Abstract

The invention provides an air conditioner control device, an air conditioner and an air conditioner control method. The air conditioner control device comprises a heat exchanger, an energy storage device, a controller and a drive pump, wherein the heat exchanger is used for exchanging heat with a coolant from a compressor of the air conditioner; the energy storage device is used for exchanging heat with the coolant again when the coolant obtained through heat exchange treatment through the heat exchanger flows through the energy storage device so as to store cold or heat; the controller is used for judging whether the cold or the heat in the energy storage device reaches a preset threshold value or not and sending a control command to the drive pump of the air conditioner according to a judgment result; and the drive pump is used for receiving the control command from the controller and changing the work state of the energy storage device according to the control command. By the adoption of the technical scheme, energy consumption is saved, the problem that the power of the air conditioner is surplus in the small-load work state is solved, the liquid hammer phenomenon generated due to long-time work of the compressor is effectively avoided, and the safety of the air conditioner is improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner control device, an air conditioner and an air conditioner control method. Background technique [0002] At present, in the air conditioner multi-split system, it has become the future development trend in the multi-split field to use a high-power variable frequency compressor instead of multiple full variable frequency compressors or multiple fixed variable frequency compressors. [0003] However, high-power inverter compressors often have the difficulty of controlling small-load refrigeration. These difficulties are generally caused by the limited minimum frequency and power of the compressor, because the size of the condenser is certain, which leads to the minimum capacity output of the system in the case of some small load cooling or heating is higher than the user's demand Much bigger. In view of this situation, it is often necessary to u...

AI Technical Summary

Problems solved by technology

This method is at the cost of reducing energy efficiency, and the energy output of the system is still greater than the energy demand, which cannot fundamentally solve the problem of excess energy when the air conditioner is running under a small load.

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