HEAT PUMP-TYPE COOL/HOT-AIR DRYER AND DRYING METHOD

WIPO Patent Application WO/2021/221261

A1

The purpose of the present invention, which relates to a heat pump-type cool/hot-air dryer and a drying method, is to supply an inexpensive and good heat pump cool/hot-air dryer product desired by a consumer in response to development and popularization of various heat pump dryers. According to the gist of the present invention, the heat pump-type cool/hot-air dryer comprises: a drying/evaporating device (103) for heat-exchanging and cooling first return air (201) introduced from a drying chamber; an evaporator fan (301) for suctioning and discharging the first return air having passed through the drying/evaporating device (103); a drying/condensing device (102) for heat-exchanging the first return air introduced from the evaporator fan (301) to heat same to a predetermined temperature; and an air-supplying fan (302) for introducing air having passed through the drying/condensing device (102) into the drying chamber, and further comprises a bypass air damper (204) for introducing or blocking second return air, introduced from the drying chamber, by selectively opening or blocking a flow channel between the evaporator fan (301) and the drying/condensing device (102).

PARK SEUNG TAE (KR)
HONG KYOUNG SU (KR)
CHO SUNG KU (KR)
KIM SEOUNG YOUNG (KR)
HWANG BO KYUNG (KR)

PCT/KR2020/017513

November 04, 2021

December 03, 2020

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AIR TECH ENG CO LTD (KR)

F26B3/04; F25B29/00; F26B21/00; F26B23/00; F26B25/00

KR20110029578A	2011-03-23
KR20200009768A	2020-01-30
KR101409854B1	2014-06-19
KR20120138977A	2012-12-27
KR101756090B1	2017-07-19

SMART PATENT LAW FIRM (KR)

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