Air conditioning device

Patent metadata

Field	Value
Publication number	US-2016288609-A1
Application number	US-201415037056-A
Country	US
Kind code	A1
Filing date	Nov 13, 2014
Priority date	Nov 20, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

An air conditioning device includes a casing that provides multiple air passages, a blower fan that suctions an air from the multiple air passages and blows out the air in the casing, a suction side partitioning member that is disposed on a suction side of the blower fan in the casing and separates air flows from the multiple air passages from each other, and a blowing side partitioning member that is disposed on a blowing side of the blower fan in the casing and separates the air flows from the multiple air passages from each other. The suction side partitioning member and the blowing side partitioning member are disposed so that a relative position of the blowing side partitioning member to the suction side partitioning member is deviated in a rotation direction of the blower fan.

First claim

What is claimed is:

1 . An air conditioning device, comprising:
a casing including a plurality of air passages; a rotary blower fan that is disposed in the casing, suctions air from the plurality of air passages, and blows out the air; a blowing side partitioning member that is disposed on a suction side of the rotary blower fan in the casing, and separates air flows from the plurality of air passages from each other; and a blowing side partitioning member that is disposed on a blowing side of the rotary blower fan in the casing, and separates the air flows from the plurality of air passages from each other, wherein a position of the blowing side partitioning member is deviated from a position of the suction side partitioning member in a rotation direction of the rotary blower fan.

2 . The air conditioning device according to claim 1 , further comprising an actuating device that moves at least one of the suction side partitioning member and the blowing side partitioning member to change a deviation between the position of the suction side partitioning member and the position of the blowing side partitioning member in a rotation direction of the rotary blower fan.

3 . The air conditioning device according to claim 2 , further comprising
a blowing duct that is connected to the casing and includes a blowing air passage which sends the air flows from the plurality of air passages to a space to be air-conditioned, separately, wherein the actuating device increases the deviation between the position of the suction side partitioning member and the position of the blowing side partitioning member in the rotation direction of the rotary blower fan with increase in pressure loss of the air flows in the casing and the blowing duct.

4 . The air conditioning device according to claim 1 , wherein
the rotary blower fan is a centrifugal fan that includes a rotation shaft and a plurality of blades disposed around the rotation shaft, suctions the air from a radially inner side, and blows out the air toward a radially outer side, the rotary blower fan is disposed on a lateral side of the plurality of air passages, and an angle from a portion of the suction side partitioning member located on an upstream side in the plurality of air passages to the blowing side partitioning member in the rotation direction is larger than an angle from a portion of the suction side partitioning member located on the downstream side in the plurality of air passages to the blowing side partitioning member in the rotation direction.

5 . The air conditioning device according to claim 1 , further comprising a blowing duct that is connected to the casing, and defines a blowing air passage for blowing out the air flows from the plurality of air passages into the space to be air-conditioned, separately from each other, wherein
the rotary blower fan includes a first blower fan and a second blower fan which are rotationally driven in synchronization with each other, the casing and the blowing duct include a first air passage in which the first blower fan suctions and blows out the air, and a second air passage in which the second blower fan suctions and blows out the air, a pressure loss in the first air passage and a pressure loss in the second air passage are different from each other, the suction side partitioning member includes a first suction side partitioning member disposed on a suction side of the first blower fan, and a second suction side partitioning member disposed on a suction side of the second blower fan, the blowing side partitioning member includes a first blowing side partitioning member disposed on a blowing side of the first blower fan and a second blowing side partitioning member disposed on a blowing side of the second blower fan, and a relative angle between the first suction side partitioning member and the first blowing side partitioning member is different from a relative angle between the second suction side partitioning member and the second blowing side partitioning member.

6 . The air conditioning device according to claim 1 , wherein
the plurality of air passages includes a driver's seat side outside air passage in which an outside air to be blown out toward a driver's seat side flows, a passenger's seat side outside air passage in which the outside air to be blown out toward a passenger's seat side flows, a driver's seat side inside air passage in which an inside air to be blown out toward the driver's seat side flows, and a passenger's seat side inside air passage in which the inside air to be blown out toward the passenger's seat side flows, and the rotary blower fan includes a first blower fan that suctions the air from the driver's seat side outside air passage and the passenger's seat side outside air passage and blows out the air, and a second blower fan that suctions the air from the driver's seat side inside air passage and the passenger's seat side inside air passage and blows out the air.

7 . The air conditioning device according to claim 6 , wherein
the first blower fan is a centrifugal fan that includes a rotation shaft and a plurality of blades disposed around the rotation shaft, suctions the air from a radially inner side, and blows out the air toward a radially outer side, the second blower fan is a centrifugal fan that includes a rotation shaft and a plurality of blades disposed around the rotation shaft, suctions the air from a radially inner side, and blows out the air toward a radially outer side, the first blower fan is disposed on lateral sides of the driver's seat side outside air passage and the passenger's seat side outside air passage, and the second blower fan is disposed on lateral sides of the driver's seat side inside air passage and the passenger's seat side inside air passage.

8 . The air conditioning device according to claim 6 , wherein
the first blower fan is a centrifugal fan that includes a rotation shaft and a plurality of blades disposed around the rotation shaft, suctions the air from a radially inner side, and blows out the air toward a radially outer side, the second blower fan is a centrifugal fan that includes a rotation shaft and a plurality of blades disposed around the rotation shaft, suctions the air from a radially inner side, and blows out the air toward a radially outer side, the first blower fan is disposed on end face sides of the driver's seat side outside air passage and the passenger's seat side outside air passage, and the second blower fan is disposed on end face sides of the driver's seat side inside air passage and the passenger's seat side inside air passage.

9 . The air conditioning device according to claim 1 , wherein
the plurality of air passages includes an outside air passage in which an outside air flows, and an inside air passage in which an inside air flows, the suction side partitioning member and the blowing side partitioning member are fixed to the casing, the suction side partitioning member includes a first portion that separates the outside air flow and the inside air flow from each other such that the rotation direction is directed from the outside air flow toward the inside air flow, and a second portion that separates the outside air flow and the inside air flow from each other such that the rotation direction is directed from the inside air flow toward the outside air flow, the blowing side partitioning member includes a first portion that separates the outside air flow and the inside air flow from each other such that the rotation direction is directed from the outside air flow toward the inside air flow, and a second portion that separates the outside air flow and the inside air flow from each other such that the rotation

Assignees

• Denso Corp

Inventors

• Yamaoka Jun
• Kato Shinya
• Sekito Yasuhiro
• Maeda Kenichiro
• Ishiguro Syunsuke

Classifications

• B60H2001/00135

  Deviding walls for separate air flows · CPC title

• B60H1/00564

  of air ducts · CPC title

• B60H1/00471

  The ventilator being of the radial type, i.e. with radial expulsion of the air · CPC title

• B60H1/00064 Primary

  for sending air streams of different temperatures into the passenger compartment · CPC title

• B60H2001/00192

  to left and right part of passenger compartment · CPC title