Air conditioning apparatus

Patent metadata

Field	Value
Publication number	US-9696062-B2
Application number	US-201514687185-A
Country	US
Kind code	B2
Filing date	Apr 15, 2015
Priority date	Apr 18, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 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, a centrifugal fan, and a heater. The centrifugal fan includes a bladed wheel having a plurality of rearward blades and sucks air existing in the heat exchanger compartment into the fan compartment through the fan entrance. The bladed wheel is mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port. The heater is mounted in a blow-out port opposed space. The blow-out port opposed space is a region opposed to the blow-out port within a fan downwind space. The fan downwind space is a space located on a downwind side of the bladed wheel within the fan compartment.

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 perpendicular to a second lateral direction along which the partition member extends;
a heater mounted in a blow-out port opposed space, the blow-out port opposed space being a region opposed to the blow-out port within a fan downwind space, the fan downwind space being a space located on a downwind side of the bladed wheel within the fan compartment;
an inclined blow-out port non-opposed surface part mounted in a position on the downwind side of the bladed wheel and extending from a first lateral part of the casing; and
a blow-out port circumferential surface part extending from a blow-out port side end of the blow-out port non-opposed surface part toward the blow-out port along the first axial direction, with the blow-out port circumferential surface part being spaced from a second lateral part of the casing such that the blow-out port opposed space is disposed on a second lateral part side of the blow-out port circumferential surface part,
the heater being disposed in a region adjacent to a circumferential part of the casing within the blow-out port opposed space when seen from a direction along the rotary shaft, the region being closer to the circumferential part of the casing than to a center of the blow-out port opposed space as measured perpendicularly relative to the circumferential part of the casing.

2. 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 perpendicular to a second lateral direction along which the partition member extends;
a heater mounted in a blow-out port opposed space, the blow-out port opposed space being a region opposed to the blow-out port within a fan downwind space, the fan downwind space being a space located on a downwind side of the bladed wheel within the fan compartment;
an inclined blow-out port non-opposed surface part mounted in a position on the downwind side of the bladed wheel and extending from a first lateral part of the casing; and
a blow-out port circumferential surface part extending from a blow-out port side end of the blow-out port non-opposed surface part toward the blow-out port along the first axial direction, with the blow-out port circumferential surface part being spaced from a second lateral part of the casing such that the blow-out port opposed space is disposed on a second lateral part side of the blow-out port circumferential surface part,
the heater being disposed in a region adjacent to a circumferential part of the casing within the blow-out port opposed space when seen from a direction along the rotary shaft,
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 heater including a first heater disposed in a first position adjacent to the bladed wheel in a region located on a rearward side in a rotary direction of the bladed wheel within the blow-out port opposed space, the first position being closer to the blow-out port nearby lateral part than to a third lateral part, and
the heater including a second heater disposed in a second position adjacent to the blow-out port in a region located on a forward side in the rotary direction of the bladed wheel within the blow-out port opposed space, the second position being closer to the third lateral part than to the blow-out port nearby lateral part.

3. The air conditioning apparatus according to claim 2 , wherein
the second heater has a heating capacity larger than a heating capacity of the first heater.

4. 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 perpendicular to a second lateral direction along which the partition member extends;
a heater mounted in a blow-out port opposed space, the blow-out port opposed space being a region opposed to the blow-out port within a fan downwind space, the fan downwind space being a space located on a downwind side of the bladed wheel within the fan compartment;
an inclined blow-out port non-opposed surface part mounted in a position on the downwind side of the bladed wheel and extending from a first lateral part of the casing; and
a blow-out port circumferential surface part extending from a blow-out port side end of the blow-out port non-opposed surface part toward the blow-out port along the first axial direction, with the blow-out port circumferential surface part being spaced from a second lateral part of the casing such that the blow-out port opposed space is disposed on a second lateral part side of the blow-out port circumferential surface part,
the heater including a first heater disposed in a first position adjacent to the bladed wheel within the blow-out port opposed space, the first position being closer to the bladed wheel than to the blow-out port,
the heater including a second heater disposed in a second position adjacent to the blow-out port within the blow-out port opposed space, the second position being closer to the blow-out port than to the bladed wheel, and
the second heater having a heating capacity larger than a heating capacity of the first heater.

Assignees

• Daikin Ind Ltd

Inventors

• Yamasaki Takahiro
• Sanagi Tsunehisa
• Yokoyama Naofumi
• Kashihara Takashi
• Mori Akihiko

Classifications

• F24H3/0411

  for domestic or space-heating systems · CPC title

• F24H9/0073 Primary

  Arrangement or mounting of means for forcing the circulation of air · CPC title

• F24F2221/34

  Heater, e.g. gas burner, electric air heater · CPC title

• F24F1/0059

  characterised by heat exchangers · CPC title

• F24F1/0067

  by the shape of the heat exchangers or of parts thereof, e.g. of their fins · CPC title