IP Library Granted Patent US 10,274,209
Granted Patent B2
US 10,274,209 · App. 15/220,593 · Granted Apr 30, 2019

Air conditioner and indoor unit of the same

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Quick Facts
Patent No.
US 10,274,209
App. No.
15/220,593
Granted
Apr 30, 2019
Kind
B2
Abstract

The present disclosure provides an indoor unit of an air conditioner includes a housing, a centrifugal fan arranged inside the housing, and a heat exchanger arranged so as to surround the centrifugal fan, in which the heat exchanger includes an area cut in a direction of rotation of the centrifugal fan. A current plate provided at a final portion of the heat exchanger in the direction of the rotation of the centrifugal fan includes a first face which is extended in a height direction of the heat exchanger and blocks an air flow produced between the centrifugal fan and the heat exchanger and a second face protruded from the first face in a direction opposite the air flow. The indoor unit has an advantageous effect to suppress an inflow of air to a space where the heat exchanger is cut in the indoor unit to reduce the power consumption.

Claims (18)

1. An indoor unit of an air conditioner comprising:

a housing;

a centrifugal fan arranged inside the housing; and

a heat exchanger arranged so as to surround the centrifugal fan,

wherein the heat exchanger includes an area cut in a direction of rotation of the centrifugal fan,

wherein a current plate is provided at a final portion of the heat exchanger in the direction of the rotation of the centrifugal fan, and

wherein the current plate includes a first face that extends away from the heat exchanger and toward the centrifugal fan and that blocks an air flow produced between the centrifugal fan and the heat exchanger and a second face that protrudes from only a portion of an end of the first face to extend in a height direction of the heat exchanger and in a direction opposite the air flow.

2. The indoor unit of the air conditioner according to claim 1 ,

wherein the second face faces an inner surface of the heat exchanger that faces the centrifugal fan and is parallel to the inner surface of the heat exchanger.

3. The indoor unit of the air conditioner according to claim 2 ,

wherein a height of the second face is equal to or higher than at least half a height of a discharge opening of the centrifugal fan, and

wherein an attaching position of the second face or at least a part of the second face is in the same position of the discharge opening of the centrifugal fan.

4. The indoor unit of the air conditioner according to claim 2 ,

wherein an angle formed by the first face and the second face is matched with an angle of air blow out from the centrifugal fan.

5. An air conditioner comprising:

the indoor unit of the air conditioner according to claim 1 ;

an outdoor unit including a compressor; and

a refrigerant pipe connecting between the indoor unit and the outdoor unit.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2018
From: JOHNSON CONTROLS-HITACHI AIR CONDITIONING TECHNOLOGY (HONG KONG) LIMITED
To: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Reel/Frame 045299/0676 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2016
From: SATO, DAIWA; TSUCHIHASHI, KAZUHIRO
To: JOHNSON CONTROLS-HITACHI AIR CONDITIONING TECHNOLOGY (HONG KONG) LIMITED
Reel/Frame 039268/0142 →