COOLING METHOD OF MOTORS OF AIR CONDITIONER WITH FREON AIR CONDENSER Russian patent published in 2015 - IPC F24F13/00 

FIELD: ventilation.

SUBSTANCE: cooling method of motors of an air conditioner consists in cooling of an electric motor of an axial fan with air of a unit part, and cooling of a motor of a centrifugal fan with air of an air cooling part. A heat-insulated compartment is created in the unit part, a motor and a compressor is placed into the heat-insulated compartment, an air cooling part is heat insulated, an air cooler outlet is connected to an inlet of the centrifugal fan by means of an air pipeline; two auxiliary flows are branched off a recirculating air flow; the first auxiliary air flow is branched off the recirculating flow before cooling in the air cooler and supplied in series to the heat-insulated compartment and to the recirculating flow for cooling in the air cooler, the second auxiliary air flow is branched off after the centrifugal fan and supplied in series to the air cooling part in the location zone of the centrifugal fan and to the recirculating flow before the centrifugal fan. Auxiliary air flows are supplied to the heat-insulated compartment and the air cooling part with a possibility of flow control.

EFFECT: possible operation of an air conditioner at the ambient air temperature of up to 100 degrees with use of motors of general-purpose industrial production.

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