Ceiling-embedded air conditioner

Patent metadata

Field	Value
Publication number	US-10030876-B2
Application number	US-201615077291-A
Country	US
Kind code	B2
Filing date	Mar 22, 2016
Priority date	Mar 24, 2015
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A ceiling-embedded air conditioner includes: a ceiling-embedded casing main body that includes inside thereof a turbo fan and a heat exchanger disposed to surround the outer periphery of the turbo fan; a decorative panel that is mounted on a bottom surface of the casing main body and has an air blowoff opening; a drain pan that is provided on the bottom surface of the casing main body; an air blowoff path that is a through hole with rectangular cross section, the air blowoff path being provided in the drain pan and guiding conditioned air heat-exchanged by the heat exchanger to the air blowoff opening; and a reinforcement support column that is provided between long sides of the air blowoff path and includes a portion protruding more upward than an opening surface of the air blowoff path on an inflow side.

First claim

What is claimed is:

1. A ceiling-embedded air conditioner comprising:
a ceiling-embedded casing main body that includes inside thereof a turbo fan and a heat exchanger disposed to surround the outer periphery of the turbo fan;
a decorative panel that is mounted on a bottom surface of the casing main body and has an air blowoff opening;
a drain pan that is provided on the bottom surface of the casing main body;
an air blowoff path that is a through hole with rectangular cross section, the air blowoff path being provided in the drain pan and guiding conditioned air heat exchanged by the heat exchanger to the air blowoff opening; and
a reinforcement support column that is provided between center portions of long sides of the drain pan forming the air blowoff path and is located above the air blowoff path to reinforce the drain pan forming the are blowoff path, and includes a portion extending from the long sides as base end portions to a center of the air blowoff path in an obliquely upward direction and a peak portion connecting ends of the inclined portions to be formed in an arch shape, the peak portion being positioned higher than an opening surface of the air blowoff path on an inflow side,
wherein both of the inclined portions are provided between the center portions of the long sides of the drain pan.

2. The ceiling-embedded air conditioner according to claim 1 , wherein the drain pan includes a foamed resin drain pan main body and a resin drain sheet formed integrally with the drain pan main body on the heat exchanger side, and
the support column is formed as part of the drain sheet.

3. The ceiling-embedded air conditioner according to claim 1 , wherein the drain pan includes a pair of long side walls formed at the long sides and pair of short side walls connecting the pair of long side walls to form the air blowoff path thereinside, and
the pair of long side walls includes a first long side wall arranged at an outer side, and a second long side wall arranged at an inner side to face the first long side wall and having a height shorter than that of the first long side wall to efficiently take the conditioned air in the air blowoff path.

4. The ceiling-embedded air conditioner according to claim 3 , wherein the inclined portions include a first inclined portion extending from the first long side wall, and a second inclined portion extending from the second long side wall and having a length a middle portion between the pair of long side walls above the air blowoff path.

5. The ceiling-embedded air conditioner according to claim 1 , wherein the casing main body further includes a top plate, four side plates extending downwardly from the top plate, and a heat insulator extending along inner surfaces of the top plate and each of the four side plates, and
the drain pan is separately formed from the heat insulator along the four side plates under the heat insulator, and the inclined portions extend from upper end portions of the long sides of the drain pan.

Assignees

• Fujitsu General Ltd

Inventors

• Ogura Taku

Classifications

• F24F13/222

  for evacuating condensate · CPC title

• F24F13/32

  Supports for air-conditioning, air-humidification or ventilation units · CPC title

• F24F1/0022

  Centrifugal or radial fans · CPC title

• F24F13/20

  Casings or covers · CPC title

• F24F13/22

  Means for preventing condensation or evacuating condensate · CPC title