Air conditioning apparatus

Patent metadata

Field	Value
Publication number	US-9618216-B2
Application number	US-201514687202-A
Country	US
Kind code	B2
Filing date	Apr 15, 2015
Priority date	Apr 18, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The blow-out port is at least partially disposed adjacent to a blow-out port nearby lateral part of the casing along an opening direction of a fan entrance and the blow-out port. A fan downwind space is located on a downwind side of a bladed wheel within a fan compartment, and has a blow-out port opposed space and a blow-out port non-opposed space. A first guide member directs air existing in the blow-out port non-opposed space toward the blow-out port opposed space, and is mounted in a boundary region located astride of regions located on forward and rearward sides in a rotary direction within the blow-out port non-opposed and blow-out port opposed spaces, respectively.

First claim

The invention claimed is:

1. An air conditioning apparatus, comprising:
a casing having an intake port and a blow-out port;
a partition member dividing an interior of the casing into a heat exchanger compartment located on an intake port side and a fan compartment located on a blow-out port side, the partition member having a fan entrance, the fan entrance being bored in opposition to the blow-out port and making the heat exchanger compartment and the fan compartment communicate with each other;
a heat exchanger mounted in the heat exchanger compartment;
a centrifugal fan including a bladed wheel having a plurality of rearward blades and being configured to suck air existing in the heat exchanger compartment into the fan compartment through the fan entrance, with the bladed wheel being mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along a first axial direction direction perpendicular to a second lateral direction along which the partition member extends; and
a first guide member,
the blow-out port being at least partially disposed in a position adjacent to a blow-out port nearby lateral part, the blow-out port nearby lateral part being one of multiple lateral parts of the casing that are disposed along the first axial direction,
the fan compartment including a fan downwind space, the fan downwind space being a space located on a downwind side of the bladed wheel within the fan compartment and having a blow-out port opposed space and a blow-out port non-opposed space, the blow-out port opposed space being a region upstream of and aligned with the blow-out port within the fan downwind space, the blow-out port non-opposed space being a region laterally offset from the blow-out port opposed space and axially on a fan side of a blow-out port non-opposed surface part within the fan downwind space, the blow-out port non-opposed surface part being opposed to the fan entrance in a position located on the downwind side of the bladed wheel and being laterally offset from the blow-out port opposed space and extending partially across the fan downwind space, and
the first guide member being arranged and configured to direct air existing in the blow-out port non-opposed space toward the blow-out port opposed space, the first guide member extending from within the blow-out port non-opposed space to a region within the blow-out port opposed space.

2. The air conditioning apparatus according to claim 1 , wherein
the first guide member has a first guide body, and
the first guide body is formed along a shape of the blow-out port non-opposed surface part and is disposed away from the blow-out port non-opposed surface part at an interval.

3. The air conditioning apparatus according to claim 2 , wherein
the first guide body gradually curves toward the blow-out port as the first guide body extends from the blow-out port non-opposed space to the blow-out port opposed space as viewed orthogonally relative to the first axial direction.

4. The air conditioning apparatus according to claim 1 , wherein
the first guide member is disposed so as to overlap with the bladed wheel as viewed along the first axial direction.

5. The air conditioning apparatus according to claim 1 , further comprising:
a second guide member mounted in the blow-out port opposed space in order to direct air toward the blow-out port after the air is directed to the blow-out port opposed space.

6. The air conditioning apparatus according to claim 5 , wherein
the second guide member has a second guide body, and
the second guide body extends toward the blow-out port so as to continue from a blow-out port side end of the first guide member.

7. The air conditioning apparatus according to claim 2 , wherein
the first guide member is disposed so as to overlap with the bladed wheel as viewed along the first axial direction.

8. The air conditioning apparatus according to claim 2 , further comprising:
a second guide member mounted in the blow-out port opposed space in order to direct air toward the blow-out port after the air is directed to the blow-out port opposed space.

9. The air conditioning apparatus according to claim 3 , wherein
the first guide member is disposed so as to overlap with the bladed wheel as viewed along the first axial direction.

10. The air conditioning apparatus according to claim 3 , further comprising:
a second guide member mounted in the blow-out port opposed space in order to direct air toward the blow-out port after the air is directed to the blow-out port opposed space.

11. The air conditioning apparatus according to claim 4 , further comprising:
a second guide member mounted in the blow-out port opposed space in order to direct air toward the blow-out port after the air is directed to the blow-out port opposed space.

Assignees

• Daikin Ind Ltd

Inventors

• Kashihara Takashi
• Sanagi Tsunehisa
• Yamasaki Takahiro
• Yokoyama Naofumi
• Yokomizo Tsuyoshi

Classifications

• F24F1/0022 Primary

  Centrifugal or radial fans · CPC title

• F24F1/0018

  characterised by fans (with secondary air induced by injector action of the primary air F24F1/01) · CPC title