Outdoor unit of air conditioner

Patent metadata

Field	Value
Publication number	US-10126003-B2
Application number	US-201715423091-A
Country	US
Kind code	B2
Filing date	Feb 2, 2017
Priority date	Feb 29, 2016
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

Provided is an outdoor unit of an air conditioner capable of obtaining stable air blowing performance without enlarging a blower fan and decreasing the amount of air per unit area (wind velocity distribution) passing through the heat exchanger even if the capacity of the heat exchanger is enlarged by optimizing a relative arrangement and a configuration of a heat exchanger and a blower and effectively utilizing the wind of the blower which is conventionally wasted. The rotation shaft of the first blower is disposed closer to the center line in the lateral direction of the housing than the center line in a lateral direction of the left blower chamber, and the rotation shaft of the second blower is disposed closer to the center line in the lateral direction of the housing than the center line in a lateral direction of the right blower chamber.

First claim

What is claimed is:

1. An outdoor unit of an air conditioner comprising:
a housing including a base panel, an interior of the housing being partitioned into a machine chamber and a blower chamber disposed on an upper portion of the machine chamber, the blower chamber having a left blower chamber at a left half of the blower chamber and a right blower chamber at a right half of the blower chamber with respect to a center line of the housing in a lateral direction of the housing interposed therebetween, the machine chamber having a left machine chamber disposed under the left blower chamber and a right machine chamber disposed under the right blower chamber;
a first blower disposed in the left blower chamber and having a first fan, and a second blower disposed in the right blower chamber and having a second fan;
a first air blowing port disposed above the first fan of the first blower, and a second air blowing port disposed above the second fan of the second blower, the first air blowing port and the second air blowing port being symmetrically disposed on a top surface of the housing with respect to the center line of the housing; and
a first heat exchanger disposed in the left machine chamber, and a second heat exchanger disposed in the right machine chamber, to face each other at end portions of the first heat exchanger and the second heat exchanger, each of the first heat exchanger and the second heat exchanger having a front portion disposed along a front surface of the base panel, a rear portion disposed along a rear surface of the base panel, and a side portion disposed along each of side surfaces of the base panel between the front portion and the rear portion to form a U-shape, the front portion of each of the first heat exchanger and the second heat exchanger having a length in the lateral direction of the housing shorter than that of the rear portion thereof,
wherein a rotation shaft of the first fan of the first blower is disposed closer to the center line of the housing in the lateral direction of the housing than a center line of the left blower chamber in a lateral direction of the left blower chamber, and
a rotation shaft of the second fan in the second blower is disposed closer to the center line of the housing in the lateral direction of the housing than a center line of the right blower chamber in a lateral direction of the right blower chamber; and
when the center line of the housing in the lateral direction of the housing is defined as L, a distance between the center line L and an outer circumference of each of the first and second air blowing ports is defined as G 1 , and a distance between each of the side surfaces of the housing and the outer circumference of each of the first and second air blowing ports is defined as G 2 , each of the first and second air blowing ports being disposed at positions that satisfy G 1 <G 2 .

2. The outdoor unit of an air conditioner according to claim 1 , wherein cylindrical bell mouths are disposed on outer circumferences of each of the first blower and the second blower, and
when an inner diameter of each of the bell mouths is defined as ϕ 1 and an outer diameter of each of the bell mouths is defined as ϕ 2 , the distance G 1 satisfies G 1 ≥(ϕ 2 −ϕ 1 )/2.

3. The outdoor unit of an air conditioner according to claim 1 , wherein the side surfaces include a left side surface forming the left blower chamber and the left machine chamber, and a right side surface forming the right blower chamber and the right machine chamber; and
a distance between the left side surface and the rotational shaft of the first fan of the first blower is longer than a distance between the rotational shaft of the first fan of the first blower and the center line of the housing, and a distance between the right side surface and the rotational shaft of the second fan of the second blower is longer than a distance between the rotational shaft of the second fan of the second blower and the center line.

4. The outdoor unit of an air conditioner according to claim 3 , further comprising a first cylindrical bell mouth separately formed from the first fan of the first blower and disposed around the first fan thereof, and a second cylindrical bell mouth separately formed from the second fan of the second blower and disposed around the second fan thereof,
wherein the first cylindrical bell mouth extends inwardly in a direction toward the first air blowing port to narrow an inner diameter of the first cylindrical bell mouth, and the second cylindrical bell mouth extends inwardly in a direction toward the second air blowing port to narrow an inner diameter of the second cylindrical bell mouth.

Assignees

• Fujitsu General Ltd

Inventors

• Nezu Kenta
• Kasugai Satoshi

Classifications

• F24F1/46

  Component arrangements in separate outdoor units · CPC title

• F24F1/38 Primary

  Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings · CPC title

• F24F1/50 Primary

  with outlet air in upward direction · CPC title