CPC F24F 11/32 (2018.01) [F24F 11/86 (2018.01); F24F 11/88 (2018.01); H02P 27/06 (2013.01); F24F 2140/12 (2018.01)] | 10 Claims |
1. A compressor driving device, used for driving a compressor of a refrigerating system, comprising:
a three-phase alternating current power supply input end;
a relay module;
a rectifier circuit; and
a driving control circuit which are sequentially connected, wherein:
the rectifier circuit is configured to convert a connected alternating current into a direct current and then output the direct current to a direct current bus;
the driving control circuit is configured to convert the direct current outputted by the direct current bus into compressor driving power to drive the compressor;
the compressor driving device further comprises a pressure switch,
the pressure switch is connected in series to a power supply circuit of the relay module, and configured to measure a pressure value in the refrigerating system and disconnect the power supply circuit of the relay module when the measured pressure value is greater than a preset pressure threshold; and
the driving control circuit is further configured to detect an on-off state of the pressure switch and control the compressor to stop working when the pressure switch is switched off.
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