US 9,810,440 B2
Ventilation system for bathroom
Woo Deuk Kwon, Daegu (KR)
Appl. No. 14/397,205
Filed by Woo Deuk Kwon, Daegu (KR)
PCT Filed Mar. 14, 2014, PCT No. PCT/KR2014/002181
§ 371(c)(1), (2) Date Oct. 27, 2014,
PCT Pub. No. WO2015/008919, PCT Pub. Date Jan. 22, 2015.
Claims priority of application No. 10-2013-0083329 (KR), filed on Jul. 6, 2013.
Prior Publication US 2016/0146484 A1, May 26, 2016
Int. Cl. F24F 7/06 (2006.01); F24F 11/00 (2006.01); F24F 7/08 (2006.01); E03D 9/05 (2006.01); F24F 7/10 (2006.01); F24F 13/10 (2006.01)
CPC F24F 7/08 (2013.01) [E03D 9/05 (2013.01); F24F 7/10 (2013.01); F24F 13/10 (2013.01); F24F 2221/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A ventilation system for a bathroom, comprising:
an external air traveling tube provided at an upper side of a ceiling panel of the bathroom and having an external air intake fan that takes air in from an outside and moves the taken-in air to an inside of the bathroom;
an internal air traveling tube provided at the upper side of the ceiling panel of the bathroom and having an internal air exhausting fan that draws air from the inside of the bathroom to the outside,
a bi-directional ventilation tube provided at a ceiling of the bathroom, the bi-directional ventilation tube including an external air exhausting part having a side connected with the external air traveling tube and another side connected with the inside of the bathroom and an internal air intake part formed to pass through an inside of the external air exhausting part and having a side connected with the internal air traveling tube and another side connected with the inside of the bathroom, wherein the air flows from an outside of the bathroom to the inside of the bathroom through the external air exhausting part, and the air flows from the inside of the bathroom to the outside of the bathroom through the internal air intake part, and
an internal air intake adjusting member provided at the other side of the external air exhausting part, which faces the bathroom, to be movable in a longitudinal direction of the external air exhausting part to adjust an internal air intake,
wherein the internal air traveling tube includes: a first exhaust pathway provided at the upper side of the ceiling panel of the bathroom and having a side connected with the bi-directional ventilation tube, wherein air in the bathroom is sucked through the first exhaust pathway; a second exhaust pathway extended along the upper side of the ceiling panel of the bathroom to a side wall of the bathroom and having a side connected with a toilet disposed in the bathroom, wherein air around the toilet is sucked and flows through the second exhaust pathway; and a third exhaust pathway provided at the upper side of the ceiling panel of the bathroom and connected with the first exhaust pathway and the second exhaust pathway, wherein the third exhaust pathway is connected with the internal air exhausting fan to exhaust the air inside the bathroom and the air around the toilet to the outside, and
wherein the third exhaust pathway includes: a joining section connected with the first exhaust pathway and the second exhaust pathway, wherein an internal cross-sectional area of the joining section is larger than a sum of an internal cross-sectional area of the first exhaust pathway and an internal cross-sectional area of the second exhaust pathway; an internal exhausting section having a side connected with the joining section and another side connected with the internal air exhausting fan, wherein an internal cross-sectional area of the internal exhausting section is larger than a sum of the internal cross-sectional area of the first exhaust pathway and the internal cross-sectional area of the second exhaust pathway and is smaller than the internal cross-sectional area of the joining section; and an adjusting plate provided in the joining section to, depending on a difference in amount between the air sucked through the first exhaust pathway and the air sucked through the second exhaust pathway, shift in a direction towards one, through which a smaller amount of air is sucked, of the first exhaust pathway and the second exhaust pathway.