Ceiling-embedded air conditioner

Patent metadata

Field	Value
Publication number	US-11255570-B2
Application number	US-201816157607-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Sep 30, 2014
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A ceiling-embedded air conditioner includes: a box-shaped housing that is embedded in a ceiling of an air-conditioned room; a square decorative panel that is attached to a lower surface of the housing and covers the ceiling; main body outlets that are provided along respective four sides of a bottom surface of the housing and blow heat-exchanged air; outlets that are provided in the decorative panel in correspondence with the main body outlets; corner blowoff units that are provided in the decorative panel in correspondence with coupling portions for coupling the outlets; a blowoff path that is circumferentially provided in the decorative panel in correspondence with the outlets and the corner blowoff units; and wind direction plates that are rotatably provided along the respective sides of the decorative panel so as to cover or open the blowoff path and are longer than a long side of the outlets.

First claim

What is claimed is:

1. A ceiling-embedded air conditioner comprising:
a box-shaped housing that is embedded in a ceiling of an air-conditioned room; and
a square decorative panel that is attached to a lower surface of the housing and covers the ceiling, wherein
the housing comprises:
a blowing fan at a center of inside of the housing;
a heat exchanger surrounding the blowing fan; and
a drain pan at a lower part of the housing, the drain pan having a suction opening for taking air in the blowing fan and main body outlets that are provided along respective four sides of the box-shaped housing, the main body outlets blowing heat-exchanged air,

the decorative panel comprises:
a suction grill corresponding to the suction opening;
outlets corresponding to the main body outlets;
a blowoff path having a concave shape around each of the outlets; and
wind direction plates along the respective four sides of the decorative panel, each of the wind direction plates being longer than a long side of each of the outlets and covering the blowoff path,

each corner of the blowoff path comprises a motor for rotating each of the wind direction plates and a motor cover including a motor storage portion for storing the motor, the motor and the motor cover being integrally fixed to the blowoff path,
when the each of the wind direction plates is rotated by the motor, each of the outlets is divided into a main blowoff portion and an auxiliary blowoff portion by the each of the wind direction plates, and a corner blowoff unit that guides air in the auxiliary blowoff portion is formed,
the corner blowoff unit comprises:
two of the wind direction plates adjacent to each other;
a space which is formed between the two of the wind direction plates adjacent to each other when the each of the wind direction plates is rotated by the motor; and
the motor cover,
part of the air blown from the auxiliary blowoff portion is guided to corners of the blowoff path along a space between each of the wind direction plates and the blowoff path, and the air guided from one of the wind direction plates joins together with the air guided from another one of the wind direction plates adjacent to the one of the wind direction plates and is blown out,
the motor storage portion of the motor cover comprises a wall surface in the main blowoff portion,
the ceiling-embedded air conditioner further comprises a panel heat insulating member around the suction grill,
the main blowoff portion is surrounded by a back face of each of the wind direction plates, the wall surface of the motor storage portion and an outer frame portion of the decorative panel,
the auxiliary blowoff portion is surrounded by a front face of the each of the wind direction plates and the panel heat insulating member,
the motor storage portion further comprises an inclined surface on a side opposite to the outer frame portion of the decorative panel, and
when the wind direction plates are rotated by the motor, a space between the back face of each of the wind direction plates and the inclined surface becomes narrower than the space between the back face of each of the wind direction plates and the inclined surface before the wind direction plates are rotated by the motor such that the air passing through the space is minimized.

2. The ceiling-embedded air conditioner according to claim 1 , wherein the motor cover comprises a bottom path at a bottom surface of the motor cover.

3. The ceiling-embedded air conditioner according to claim 2 , wherein the corner blowoff unit comprises:
the two of the wind direction plates adjacent to each other;
the space which is formed between the two of the wind direction plates adjacent to each other when the each of the wind direction plates is rotated by the motor; and
the bottom path of the motor cover.

Assignees

• Fujitsu General Ltd

Inventors

• Fujita Naoto
• Nakamura Yuta

Classifications

• F24F13/14 Primary

  built up of tilting members, e.g. louvre · CPC title

• F24F1/0047

  mounted in the ceiling or at the ceiling · CPC title

• F24F2013/0616

  Outlets that have intake openings · CPC title

• F24F1/0014

  having two or more outlet openings · CPC title

• F24F13/06

  Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser · CPC title