# US 11,898,762 B2 · Ceiling-embedded air conditioner

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- Number: US 11,898,762 B2
- Document ID: US11898762B2
- Status: Granted
- Kind: B2
- Application number: 17/040,178
- Filed: 2019-01-22
- Published: 2021-01-14
- Granted: 2024-02-13
- Earliest claimed: 2018-03-30
- Assignees: Fujitsu General Limited
- Applicants: Fujitsu General Limited
- Inventors: Hiroaki Noguchi
- Web page: https://patentgrep.com/patent/US11898762B2

## CPC

- F24F 1/0014: having two or more outlet openings
- F24F 1/0047: mounted in the ceiling or at the ceiling
- F24F 1/0022: Centrifugal or radial fans
- F24F 13/20: Casings or covers
- F24F 13/222: {for evacuating condensate}
- F24F 2013/205: {Mounting a ventilator fan therein}
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

A ceiling-embedded air conditioner includes a main unit, and a decorative panel that has an intake port and an outlet guide tube, wherein the main unit includes a box-shaped housing, a heat exchanger that is disposed inside the housing, a fan unit that is disposed inside the housing and collects air from the intake port and discharge the air from an outlet tube, and a drain pan that has an outlet port opening through which the air discharged from the outlet tube passes toward the outlet guide tube, the outlet guide tube has a top opening communicating with the outlet tube, a bottom opening facing a direction below a front plate of the housing, and a curved outlet ventilation path connecting the top opening to the bottom opening, and a bottom end of the bottom opening protrudes more downwards than the decorative panel does.

## Claims

### Claim 1

A ceiling-embedded air conditioner comprising:
a main body; and
a decorative panel that includes an intake port and an outlet guide tube and is mounted on a bottom surface of the main body, wherein
the main body includes:
a box-shaped housing that has a top plate, a front plate, a rear plate, a left plate, and a right plate;
a heat exchanger that is disposed inside the housing;
a fan that is disposed inside the housing and includes a sirocco fan configured to collect air from the intake port and discharge the air from an outlet tube; and
a drain pan that is configured to collects dew drops formed on the heat exchanger and includes an outlet port opening through which the air discharged from the outlet tube of the sirocco fan passes toward the outlet guide tube of the decorative panel,
the outlet guide tube of the decorative panel includes:
a top opening that communicates with the outlet tube of the sirocco fan through the outlet port opening of the drain pan;
a bottom opening that faces a direction below the front plate of the main body; and
an outlet ventilation path that connects the top opening to the bottom opening and is curved, and
a bottom end of the bottom opening protrudes more downwards than a front part of the bottom surface of the decorative panel.

### Claim 2 (depends on 1)

The ceiling-embedded air conditioner according to claim 1, wherein in the decorative panel,
the intake port is covered by a grill, and
a portion of the decorative panel between the grill and the bottom end of the bottom opening of the outlet guide tube protrudes downwards.

### Claim 3 (depends on 1)

The ceiling-embedded air conditioner according to claim 1, wherein an opening plane of the bottom opening of the outlet guide tube faces diagonally downwards toward a front.