Bathroom heating and drying device with heat pump for supply of hot water

Abstract

The invention relates to a heat pump hot-water supply bathroom heating/drying device. Although a direct hot-water supply type is being considered in order to reduce size and weight in a heat pump hot-water supply bathroom heating/drying device having bathroom heating and drying functions at the same time, the difference between necessary heating capability in a hot-water supply operation and that in a bathroom heating/drying operation is large, it can not be handled by conventional control of the number of revolutions of a compressor, and, in particular, separation, loss of synchronism, noise and the like of a compression mechanism part are generated in a low-speed operation in the bathroom heating/drying operation. The invention provides a heat pump hot-water supply bathroom heating/drying device which is solved the conventional problem by executing a heat pump operation in using hot water, by adding a bathroom heating/drying function to a direct hot-water supply type heat pump water heater for directly supplying heating water to a used terminal, and by skillfully using control of the number of revolutions and capacity control as a control method of a compressor in response to a situation.

Description

technical field [0001] The present invention relates to a heat pump supplying hot water heating and drying device for a bathroom, and in particular provides a variable amplitude expansion compressor, which can efficiently and well cope with the operation from a large-capacity supply of hot water to a bathroom that can be completed with a small capacity. The heat pump in heating and drying operation supplies hot water to the heating and drying device in the bathroom. Background technique [0002] In recent years, with the popularization of heat pump water heaters, a device with a geothermal heating function has been proposed. As such a heat pump supplying water heater, for example, the device disclosed in Patent Document 1: Japanese Unexamined Patent Publication No. 2003-247753. [0003] It operates the heat pump in advance at night when the electricity bill is relatively cheap, boils the hot water and stores it in the hot water storage tank in advance, and uses the hot wate...

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Problems solved by technology

[0011] On the other hand, from the point of view of saving energy, when the water supply temperature is constant during heat pump operation, the higher the heating temperature, the lower the operating efficiency. The amount of temperature,

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