Floor-standing air-conditioning apparatus

Patent metadata

Field	Value
Publication number	US-9581379-B2
Application number	US-201214387282-A
Country	US
Kind code	B2
Filing date	Apr 6, 2012
Priority date	Apr 6, 2012
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A floor-standing air-conditioning apparatus includes a lower air inlet, an air outlet having an air outlet opening, a heat exchanger that is provided in the body, a crossflow fan that is provided in the body and produces a flow of air in which the air that has flowed into the body passes through the heat exchanger and is guided to the air outlet, a drain pan that is provided below the heat exchanger in the height direction of the body. The heat exchanger includes a front heat exchanger and a rear heat exchanger, a pair of which form a V shape with their lower ends being in contact with, or in proximity to, each other, and are arranged so that the crossflow fan is positioned between the front heat exchanger and the rear heat exchanger.

First claim

The invention claimed is:

1. A floor-standing air-conditioning apparatus comprising:
a lower air inlet having an air inlet opening configured to allow air to flow into a body from a lower portion of the body on a side of a front face of the body;
an air outlet having an air outlet opening configured to allow air in the body to flow out of the body and rise upwardly;
a heat exchanger that is provided in the body and configured to condition air;
a crossflow fan that is provided in the body and configured to produce a flow of air in which the air that has flowed into the body passes through the heat exchanger and is guided to the air outlet; and
a drain pan that is provided below the heat exchanger in a height direction of the body and configured to receive water generated by dew condensation, wherein:
the crossflow fan is provided at a position below the air outlet in the height direction of the body and on a side of rear face with respect to a center of the body in a depth direction,
the heat exchanger includes a front heat exchanger provided on the side of the front face and a rear heat exchanger provided on the side of rear face, a pair of which form a V shape with their lower ends being in contact with or in proximity to each other, and are arranged so that the crossflow fan is positioned between the front heat exchanger and the rear heat exchanger,
the body includes an arrangement that splits the air, having flown therein from the lower air inlet, into a front air passage provided on a front side with respect to a drain-pan front side wall of the drain pan and forming a passage of air flowing into the front heat exchanger, and a rear air passage provided on a rear side with respect to a drain-pan rear side wall of the drain pan and forming a passage of air flowing into the rear heat exchanger, and
a shortest distance between the drain-pan front side wall and a front air passage wall surface of the body is larger than a shortest distance between the drain-pan rear side wall and a rear air passage wall surface of the body.

2. The floor-standing air-conditioning apparatus of claim 1 , further comprising:
a front air inlet provided in a front panel configured to cover the front face of the body and between the lower air inlet and the air outlet, the front air inlet including an opening configured to allow air to flow into the body, wherein
a distance in the height direction of the body between a center of a rotational axis of the crossflow fan and the lower end of the heat exchanger is not more than a product of an outside diameter of the crossflow fan multiplied by four.

3. The floor-standing air-conditioning apparatus of claim 2 , wherein
the opening of the front air inlet is positioned in the height direction of the body to fall within a range between an upper end and a lower end of a circle defining a perimeter of the crossflow fan.

4. The floor-standing air-conditioning apparatus of claim 2 , wherein
the front air inlet further includes an air-guiding wall that extends from a lower portion of the opening substantially horizontally into the body, then curves upward, and further extends upward while facing a wall surface of the front panel.

5. The floor-standing air-conditioning apparatus of claim 2 , wherein
the front panel comprises a flat panel.

6. The floor-standing air-conditioning apparatus of claim 1 , wherein
an area of the front heat exchanger through which the air passes is larger than an area of the rear heat exchanger through which the air passes.

7. The floor-standing air-conditioning apparatus of claim 1 , wherein
an upper end position of the lower air inlet is lower in level in the height direction of the body than a lower end of the drain pan.

8. The floor-standing air-conditioning apparatus of claim 1 , further comprising
a rear panel provided on a rear side wall of the body that is on an upstream side of the crossflow fan, the rear panel having a detachable filter and an air inlet opening.

9. The floor-standing air-conditioning apparatus of claim 1 , wherein
the opening of the lower air inlet opens to a lower face of the body, and
the floor-standing air-conditioning apparatus further comprises frames individually provided in lower portions of right and left side faces of the body so as to form an arch shape and to support the body.

10. The floor-standing air-conditioning apparatus of claim 1 further comprising:
a lower diffuser having a recess at an end on a downstream side in a direction in which the air flows.

11. The floor-standing air-conditioning apparatus of claim 1 , further comprising:
a front filter that collect dust in air flowing from the lower air inlet into the front heat exchanger; and
a rear filter that is finer and is higher in collection efficiency than the front filter, the rear filter collecting dust in air flowing from the lower air inlet into the rear heat exchanger.

12. The floor-standing air-conditioning apparatus of claim 1 , wherein
the heat exchanger, the crossflow fan, and the drain pan are arranged such that a center of gravity of the floor-standing air-conditioning apparatus is positioned at a substantial center in a depth direction.

Assignees

• Ikeda Takashi
• Yamaguchi Koji
• Yamashita Tetsuo
• Tazawa Tetsuya
• Nakagawa Yoshiyuki
• Mitsubishi Electric Corp

Inventors

• Ikeda Takashi
• Yamaguchi Koji
• Yamashita Tetsuo
• Tazawa Tetsuya
• Nakagawa Yoshiyuki

Classifications

• F24F8/10

  by separation, e.g. by filtering · CPC title

• F25D23/00 Primary

  General constructional features (F25D21/00 takes precedence) · CPC title

• F24F13/22

  Means for preventing condensation or evacuating condensate · CPC title

• F24F1/0025

  Cross-flow or tangential fans · CPC title

• F24F2003/1682

  Mechanical Engineering · mapped topic