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US 2020/0224948 A1Published application
Compressor fault diagnostic apparatus and system
AssigneeLG Electronics Inc.
InventorsSehoon KIM, Jangsik Kim
Life of this patent
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Abstract
A compressor fault diagnostic apparatus including a current sensing unit to sense a current flowing through a motor of the compressor, a fault diagnostic unit to determine whether or not the motor performs a reverse rotation based on the current flowing through the motor, and a cut-off unit to remove power based on a determination of the fault diagnostic unit.
Claims22
A compressor fault diagnostic apparatus, comprising:
- a current sensing unit to sense a current flowing through a motor within the compressor;
- a fault diagnostic unit to determine whether or not the motor performs a reverse rotation based on the current flowing through the motor;
- and
- a cut-off unit to remove power from the motor based on a determination of the fault diagnostic unit.
1 more element
A system for determining compressor fault status, comprising:
- an outdoor unit including:
- a controller to control the operation of the outdoor unit,
- a compressor to compress refrigerant;
- and
- a condenser to remove excess heat from the refrigerant,
- an indoor unit including:
- a controller, in communication with the outdoor unit, to monitor temperature and control the operation of the outdoor unit;
- and
- an evaporator to cool environmental air passing there across, the refrigerant having been lowered in pressure prior to the evaporator;
- and
- power, control, and refrigerant connections between the indoor and outdoor units,
- wherein the compressor includes a compressor fault diagnostic unit, comprising:
- a current sensing unit to sense a current flowing through a motor within the compressor;
- a fault diagnostic unit to determine whether or not the motor performs a reverse rotation based on the current flowing through the motor;
- and
- a cut-off unit to remove power from the motor based on a determination of the fault diagnostic unit.
13 more elements
Dependencies are inferred from the claim text.