Control method and device for compressor

A control method and control device technology, applied in heating and ventilation control systems, control inputs related to air characteristics, space heating and ventilation control inputs, etc., can solve problems such as frequent compressor startup
CN107084473AActive Publication Date: 2017-08-22GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Publication Date
2017-08-22

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Abstract

The invention discloses a control method for a compressor. The control method comprises the steps that after the compressor achieves shutdown protection, the shutdown protection time of the compressor in the running process of an air conditioner is updated; when the shutdown protection time of the compressor is larger than a first preset time, the starting frequency of the compressor is decreased, so that the compressor is started to run according to the decreased starting frequency when the compressor is restarted. The invention further discloses a control device for the compressor. According to the control method and device for the compressor, by decreasing the starting frequency of the compressor, the compressor slowly reaches high and low temperature protection values, and then the compressor restarting time is decreased.
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Description

technical field

[0001] The invention relates to the technical field of air conditioners, in particular to a compressor control method and device. Background technique

[0002] When the air conditioner operates in the heating mode at a higher outdoor temperature and in the cooling mode at a lower outdoor temperature, the temperature of the indoor heat exchanger (that is, the indoor unit) is often too high in the heating mode and the indoor heat exchange in the cooling mode is too high. If the temperature of the air conditioner (that is, the indoor unit) is too low, in order to avoid this situation, the compressor is often shut down for protection.

[0003] When the compressor is started, it needs to run at a preset start-up frequency such as 60 or 90Hz for more than 1 minute. Low temperature protection value, the system protects once every 5 to 7 minutes, causing the compressor to start frequently. Contents of the invention

[0004] The present invention provides a compre...

Claims

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