Outdoor unit for air conditioner

Patent metadata

Field	Value
Publication number	US-9416982-B2
Application number	US-201013147158-A
Country	US
Kind code	B2
Filing date	Mar 12, 2010
Priority date	Mar 12, 2009
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

An outdoor unit for an air conditioner is disclosed, the outdoor unit characterized by: a case ( 100 ) formed with an air suction port ( 110 ) sucking air from outside and an air discharge port ( 120 ) discharging the sucked air; a first blowing fan ( 200 ) formed inside the case ( 100 ) for dis charging the air sucked from the air suction port ( 110 ) to the air discharge port ( 120 ); and a second blowing fan ( 300 ) formed inside the case ( 100 ) and positioned on the same axis of the first blowing fan ( 200 ) for rotating in an opposite direction of the first blowing fan ( 200 ), such that generation of cavitation of a blowing fan is limited to greatly reduce noise and vibration.

First claim

The invention claimed is:

1. An outdoor unit for an air conditioner, comprising:
a case formed with an air suction port sucking air from outside and an air discharge port discharging the sucked air;
a first blowing fan disposed within the case for discharging the air sucked from the air suction port to the air discharge port;
a second blowing fan disposed within the case and positioned on the same axis of the first blowing fan for rotating in an opposite direction of the first blowing fan;
a driving motor driving the first blowing fan and the second blowing fan; and
a power transfer unit for transmitting a driving power of the driving motor to the first and second blowing fans, wherein the power transfer unit is disposed between the first and second blowing fans,
wherein the power transfer unit includes a driving bevel gear fixed at a rotation shaft of the driving motor, a first driven bevel gear coupled to the first blowing fan for being meshed with the driving bevel gear, and a second driven bevel gear coupled to the second blowing fan and disposed in opposition to the first driven bevel gear for being meshed with the driving bevel gear,
wherein the rotation shaft is disposed perpendicularly to an axis of the first blowing fan and an axis of the second blowing fan,
wherein the air suction port is formed on a sidewall of the case, and the air discharge port is formed on a top surface of the case, and
wherein the first blowing fan is disposed perpendicularly to the air suction port, and the second blowing fan is facing the air discharge port.

2. The outdoor unit of claim 1 , wherein the case is disposed therein with a machine room and a heat exchange room partitioned by a barrier,
wherein a compressor is disposed within the machine room, and a heat exchanger is disposed within the heat exchange room, and
wherein the compressor is disposed at a location that is separated from a moving route of the air passing the case.

Assignees

• Kim Jung Hoon
• Park Jeong Taek
• Yoon Yong Sang
• Chung Choon Myun
• Lg Electronics Inc

Inventors

• Kim Jung Hoon
• Park Jeong Taek
• Yoon Yong Sang
• Chung Choon Myun

Classifications

• F24F1/40

  Vibration or noise prevention at outdoor units (for outdoor units compressors F24F1/12) · CPC title

• F24F13/24

  Means for preventing or suppressing noise · CPC title

• F24F13/20

  Casings or covers · CPC title

• F24F1/50

  with outlet air in upward direction · CPC title

• F24F1/38 Primary

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