Indoor unit of air conditioner

Patent metadata

Field	Value
Publication number	US-9752795-B2
Application number	US-201414454267-A
Country	US
Kind code	B2
Filing date	Aug 7, 2014
Priority date	Aug 9, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

An indoor unit including a heat exchanger that cools indoor air sucked through a suction port, a cross flow fan that enables the indoor air to be sucked through the suction port, and enables cold air cooled by the heat exchanger to be discharged into a room through a discharging port, a drainage tray unit that is disposed below the heat exchanger to collect condensate water generated in the heat exchanger, and a blade that is rotatably coupled to the drainage tray unit to open the discharging port, and whose rotary shaft is formed in an upper portion of the discharging port. The drainage tray unit includes a guide unit that prevents the cold air from being discharged to an upper side of the blade so that the cold air is discharged to a lower side of the blade when the blade is opened.

First claim

What is claimed is:

1. An indoor unit of an air conditioner comprising: a main body that includes a suction port and a discharging port; a heat exchanger that cools indoor air sucked through the suction port; a cross flow fan that enables the indoor air to be sucked through the suction port, and enables cold air cooled by the heat exchanger to be discharged into a room through the discharging port; a wind direction adjustment unit that adjusts wind directions of the air to be discharged through the discharging port; a drainage tray unit including a collection portion that is disposed below the heat exchanger to collect condensate water generated by the heat exchanger; and a blade that is rotatably coupled to the drainage tray unit to open the discharging port, the blade including a rotary shaft formed in an upper portion of the discharging port, wherein the drainage tray unit further includes: a stabilizer unit that guides the cold air heat-exchanged by the heat exchanger towards the discharging port without backflow having a portion with a surface facing the collection portion and an opposing surface facing the wind direction adjustment unit, a guide unit that protrudes towards the blade from the stabilizer unit to prevent the cold air from being discharged through a gap between the blade and the stabilizer unit in a state in which the blade is at least partially opened, a receiving space that receives a part of the blade when the blade is at least partially opened by a rotation of the rotary shaft, and a wall to separate the receiving space of the drainage tray unit from the collection portion of the drainage tray unit, wherein the stabilizer unit includes: a first portion formed roundly to be spaced apart from the cross flow fan by a predetermined interval; a second portion formed roundly towards the discharging port from the first portion; and a third portion formed flat towards the discharging port from the second portion and including the portion with the surface facing the collection portion and the opposing surface facing the wind direction adjustment unit, and the wall roundly extending from a surface of the third portion, and the guide unit extends flat to have the same inclination as the third portion.

2. The indoor unit according to claim 1 , wherein the guide unit is integrally formed with the drainage tray unit.

3. The indoor unit according to claim 1 , wherein the guide unit restricts a rotation range of the blade by interfering with the blade when the blade is opened.

4. The indoor unit according to claim 1 , wherein the blade and the guide unit are disposed in parallel with each other while the blade is completely opened.

5. The indoor unit according to claim 1 , wherein the blade makes a surface contact with the guide unit to prevent the cold air from leaking through a gap between the blade and the guide unit in a state in which the blade is completely opened.

6. The indoor unit according to claim 1 , wherein a support shaft coupling unit that rotatably supports the blade is provided in the guide unit.

7. The indoor unit according to claim 6 , wherein the blade includes a support shaft that is rotatably supported by the support shaft coupling unit.

8. The indoor unit according to claim 1 , wherein the blade includes an insulating material that is provided between an inner surface of the blade and an outer surface of the blade to prevent a conductive heat transfer between cold air of the inner surface of the blade and the outer surface of the blade.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Kwang Deuk
• Lee Kyeong Ae

Classifications

• F24F1/0057

  mounted in or on a wall · CPC title

• F24F13/08

  Air-flow control members, e.g. louvres, grilles, flaps or guide plates (F24F7/013, F24F13/06 take precedence) · CPC title

• F24F13/222 Primary

  for evacuating condensate · CPC title

• F24F1/0007

  Indoor units, e.g. fan coil units (self-contained units F24F1/02) · CPC title

• F24F2001/0048

  Mechanical Engineering · mapped topic