Drying machine and laundry dryer

Abstract

The invention provides a drying machine and a laundry dryer, which can prevent non-uniform drying of clothes, inhibit air with moisture from being discharged out of the machine to the largest extent based on different drying methods, and reduce the power consumption. The drying machine or the laundry dryer comprises a rotating drum for accommodating the clothes, a motor for driving the rotating drum, an outer tank for accommodating the rotating drum, a box body for supporting the outer tank and a drying device for blowing hot air into the rotating drum. The drying device is characterized by comprising a first drying path for sucking air in the rotating drum, blowing the hot air from the front side of the rotating drum and making the hot air circulate, a second drying path for sucking external air, blowing the hot air into the rotating drum and discharging the air in the rotating drum out of the box body, and a switching mechanism for switching the first drying path and the second drying path.

Description

technical field [0001] The present invention relates to a dryer and a washing-drying machine provided with a device for drying clothes. Background technique [0002] Clothes are dried by blowing high-temperature and low-humidity air (warm air) into the drum using a blower fan and a heat source to increase the temperature of the clothes to evaporate moisture from the clothes and discharge the evaporated moisture to the outside of the machine. As a method of removing evaporated moisture, there are exhaust methods that discharge the washer-dryer as they are (new air is always supplied) and dehumidification methods that cool evaporated moisture to condense and remove moisture (make the original some air circulation). In general, although the exhaust method can reduce power consumption, there is a problem that the humid air is exhausted outside the machine and the humidity of the room is increased. [0003] In addition, in order to shorten drying time and reduce power consumpti...

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Problems solved by technology

[0005] Although the above-mentioned prior art is provided with a plurality of warm air blowing ports to achieve drying with less uneven drying, it does not consider the drying method (exhaust method, dehumidification method)

[0006] In the above-mentioned drying methods, although there are exhaust methods that discharge the humid air in the rotary drum to the outside of the machine as they are (new air is always supplied) and methods that cool the evaporated moisture to condense and remove the moisture. Dehumidification method (circulating the original air), but the above-mentioned prior art does not consider the reduction of different power consumption in consideration of these methods

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