JP2008309397A5 - - Google Patents

Claims (3)

A refrigeration cycle having a compressor and a water heat exchanger for exchanging heat between the refrigerant and water;
A hot water storage tank for storing hot water generated by the water heat exchanger;
An electrical component that controls at least the refrigeration cycle;
In a heat pump type hot water supply device comprising:
An electrical component insulation water circulation path disposed at a position where heat can be transferred to the electrical component;
An outside air temperature detecting means for detecting the ambient temperature of the electrical component or the outside air temperature,
When the temperature detected by the outside air temperature detecting means is equal to or lower than a predetermined temperature, hot water is circulated through the electrical component heat retaining water circulation path.   The heat pump type hot water supply apparatus according to claim 1, wherein the electrical equipment heat retaining water circulation path is connected to an outflow water circulation path for circulating the hot water between the hot water storage tank and the water heat exchanger. A tank unit comprising an inner tank having a water supply unit and a tapping unit, and an outer tank provided on the outer side in contact with the inner tank and circulating the heated water to a connected heating device;
A heat pump unit for heating the water discharged from the outer tank, and circulating the water heated by the water heat exchanger to the outer tank;
In a heat pump type hot water supply apparatus provided in the heat pump unit and comprising an electrical box for storing electrical components for controlling equipment in the heat pump unit,
An electrical box heat insulation water circulation path connected to the circulating water effluent circulation path from the outer tank to the water heat exchanger in the heat pump unit via a switching valve and disposed at a position where heat can be transferred to the electrical box; ,
An outside temperature detecting means for detecting the temperature inside or outside the heat pump unit;
When the outside air temperature detecting means detects a predetermined low outside air temperature, the switching valve is controlled to circulate a part or all of the water flowing through the outflow circulation path to the electrical box insulated water circulation path, A heat pump type hot water supply apparatus comprising switching valve control means for keeping the electrical box warm.