Heat exchange unit and air-conditioning apparatus

Patent metadata

Field	Value
Publication number	US-10126013-B2
Application number	US-201415500583-A
Country	US
Kind code	B2
Filing date	Nov 27, 2014
Priority date	Nov 27, 2014
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A heat exchange unit includes a heat exchanger, a first drain pan, and a second drain pan. The heat exchanger is configured to cause heat to be exchanged between air and refrigerant. The first drain pan is provided so as to face the heat exchanger and has an opening through which the air flows. The second drain pan is provided so as to face the heat exchanger and is attached to the first drain pan so as to form an L shape in side view together with the first drain pan. The heat exchange unit is installed in an installation state in which the first drain pan is located below the heat exchanger or in an installation state in which the second drain pan is located below the heat exchanger. The second drain pan includes a rib on a facing surface facing the heat exchanger.

First claim

The invention claimed is:

1. A heat exchange unit comprising:
a heat exchanger configured to allow heat exchange between air and refrigerant;
a first drain pan provided facing the heat exchanger, the first drain pan having an opening through which the air flows; and
a second drain pan provided facing the heat exchanger, wherein
the second drain pan is attached to the first drain pan to form an L shape in a side view together with the first drain pan,
the heat exchange unit is installed in an installation state in which the first drain pan is located below the heat exchanger or in an installation state in which the second drain pan is located below the heat exchanger,
the second drain pan includes
a rib on a facing surface of the second drain pan, and wherein the facing surface faces the heat exchanger, and
a rear rib disposed on an opposite surface of the second drain pan, where the opposite surface is opposite to the facing surface, and

the rear rib is located at a position that is different from a position of the rib when viewed through the second drain pan from a heat exchanger side of the second drain pan.

2. The heat exchange unit of claim 1 , wherein, when viewed through the facing surface from the facing surface side, the rear rib of the second drain pan intersects the rib.

3. The heat exchange unit of claim 1 ,
wherein, the facing surface of the second drain pan is inclined, and
wherein, in the installation state in which the second drain pan is located below the heat exchanger, the facing surface gradually descends from the rib.

4. The heat exchange unit of claim 3 ,
wherein, in the installation state in which the second drain pan is located below the heat exchanger, the rib of the second drain pan extends toward one direction and is inclined so as to gradually descend, and
wherein the second drain pan has a second water outlet provided on a side of the one direction side, the second water outlet allowing a water droplet on the second drain pan to be drained therethrough in the installation state in which the second drain pan is located below the heat exchanger.

5. The heat exchange unit of claim 1 ,
wherein the first drain pan has a rectangular shape and the second drain pan has a rectangular shape,
wherein a one side-portion side and an other side-portion side are symmetric with each other in the first drain pan, and a one side-portion side and an other side-portion side are symmetric with each other in the second drain pan, such that one side portion of the second drain pan is detachably attached to one side portion of the first drain pan, and an other side portion of the second drain pan is detachably attached to an other side portion of the first drain pan facing the one side portion of the first drain pan.

6. An air-conditioning apparatus comprising:
a housing;
the heat exchange unit of claim 1 , the heat exchange unit being provided in the housing; and
an air-sending unit provided in the housing, the air-sending unit sending the air,
the housing being configured for installation in the installation state in which the first drain pan is located below the heat exchanger or in the installation state in which the second drain pan is located below the heat exchanger.

7. The air-conditioning apparatus of claim 6 ,
wherein the housing includes
a chamber configured to removably house the heat exchange unit and the air-sending unit, and
an openable door configured to close the chamber.

8. A heat exchange unit comprising:
a heat exchanger configured to allow heat exchange between air and refrigerant;
a first drain pan provided facing the heat exchanger, the first drain pan having an opening through which the air flows; and
a second drain pan provided facing the heat exchanger, wherein
the second drain pan is attached to the first drain pan to form an L shape in a side view together with the first drain pan,
the heat exchange unit is installed in an installation state in which the first drain pan is located below the heat exchanger or in an installation state in which the second drain pan is located below the heat exchanger,
the second drain pan includes:
a rib on a facing surface facing the heat exchanger, and
an auxiliary rib intersecting the rib on the facing surface.

9. A heat exchange unit comprising:
a heat exchanger configured to allow heat exchange between air and refrigerant;
a first drain pan provided facing the heat exchanger, the first drain pan having an opening through which the air flows; and
a second drain pan provided facing the heat exchanger, wherein
the second drain pan is attached to the first drain pan to form an L shape in a side view together with the first drain pan,
the heat exchange unit is installed in an installation state in which the first drain pan is located below the heat exchanger or in an installation state in which the second drain pan is located below the heat exchanger,
the second drain pan includes:
a rib on a facing surface facing the heat exchanger, and
a temporal securing rib on the facing surface, and

the temporal securing rib temporarily secures the first drain pan when the second drain pan is attached to the first drain pan.

Assignees

• Mitsubishi Electric Corp

Inventors

• Yamamoto Keiichi

Classifications

• F24F1/0063

  by the mounting or arrangement of the heat exchangers · CPC title

• F24F13/222 Primary

  for evacuating condensate · CPC title

• F24F1/0022

  Centrifugal or radial fans · CPC title

• F24F1/0067

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

• F24F1/005

  mounted on the floor; standing on the floor · CPC title