US 12,220,034 B2
High-efficiency cordless hair dryer
Young Jin Jeong, Seoul (KR); and Hyeon Jun Song, Seoul (KR)
Assigned to Foundation of Soongsil University-Industry Cooperation, Seoul (KR)
Appl. No. 15/734,675
Filed by FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION, Seoul (KR)
PCT Filed Feb. 5, 2020, PCT No. PCT/KR2020/001660
§ 371(c)(1), (2) Date Dec. 3, 2020,
PCT Pub. No. WO2021/112330, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10-2019-0161954 (KR), filed on Dec. 6, 2019.
Prior Publication US 2021/0169195 A1, Jun. 10, 2021
Int. Cl. A45D 20/12 (2006.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/623 (2014.01); H01M 10/653 (2014.01); H01M 10/6551 (2014.01); H01M 50/213 (2021.01); H01M 50/247 (2021.01); H01M 50/264 (2021.01)
CPC A45D 20/12 (2013.01) [H01M 10/482 (2013.01); H01M 10/613 (2015.04); H01M 10/623 (2015.04); H01M 10/653 (2015.04); H01M 10/6551 (2015.04); H01M 50/213 (2021.01); H01M 50/247 (2021.01); H01M 50/264 (2021.01); H01M 2220/30 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A high-efficiency cordless hair dryer comprising:
a main body housing having, at a rear side thereof, an air inlet port through which air is introduced, having, at a front side thereof, a discharge port through which the air is discharged, and having an internal space in which a heating element is mounted; and
a power supply module, including a plurality of batteries, configured to supply power and detachably coupled to the rear side of the main body housing at which the air inlet port is formed,
wherein the power supply module is detachably coupled to the main body housing so as to be coincident with a direction of a flow of air in the main body housing, and
wherein the plurality of batteries is located between air filters disposed inside of the main body housing,
wherein the power supply module comprises:
a battery mounting body comprising a plurality of battery mounting members disposed in a circumferential direction in a movement passage for air and configured such that the plurality of batteries is detachably coupled to the plurality of battery mounting members, respectively; and
a module plate coupled to a rear side of the battery mounting body and mounted with a switch member for turning on/off the plurality of batteries or a remaining power level display member for indicating a remaining power level, and
wherein the power supply module further comprises a first filter of the air filters, disposed in front of the battery mounting body and a second filter, of the air filters, disposed behind the battery mounting body.