Outdoor unit for air-conditioning apparatus

Abstract

An outdoor unit for an air-conditioning apparatus includes a heat exchanger including a plurality of heat exchanger units. The plurality of heat exchanger units are vertically stacked and each include a long side portion, a short side portion, and a corner portion bent and connecting the long side portion and the short side portion to each other. In the heat exchanger, deviation in an air flow direction that lies between ones of the plurality of heat exchanger units that are vertically adjacent to each other is larger at the short side portions than at the long side portions.

1 . An outdoor unit for an air-conditioning apparatus, comprising:
 a heat exchanger including a plurality of heat exchanger units, the plurality of heat exchanger units being vertically stacked and each including a long side portion, a short side portion, and a corner portion bent in an R-curve shape and connecting the long side portion and the short side portion to each other; and   a first regulating part regulating relative positions of ones of the plurality of heat exchanger units that are vertically adjacent to each other,   the first regulating part regulating the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other by sandwiching inflow-surface portions and outflow-surface portions in an air flow direction of the ones of the plurality of heat exchanger units that are vertically adjacent to each other in a range from a part of a corresponding one of the long side portions to a middle of a corresponding one of the corner portions continuous from the corresponding one of the long side portions,   in the heat exchanger, deviation in the air flow direction that lies between the ones of the plurality of heat exchanger units that are vertically adjacent to each other being larger at the short side portions than at the long side portions through alignment by the first regulating part of the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other in the range from the part of the corresponding one of the long side portions to the middle of the corresponding one of the corner portions continuous from the corresponding one of the long side portions.   
     
     
         2 - 3 . (canceled) 
     
     
         4 . The outdoor unit for an air-conditioning apparatus of  claim 1 , wherein the first regulating part allows the ones of the plurality of heat exchanger units that are vertically adjacent to each other to relatively move in a longitudinal direction of the corresponding ones of the long side portions. 
     
     
         5 . The outdoor unit for an air-conditioning apparatus of  claim 1 , wherein the first regulating part includes a projecting portion inserted between adjacent metal plates of any one of the ones of the plurality of heat exchanger units that are vertically adjacent to each other. 
     
     
         6 . The outdoor unit for an air-conditioning apparatus of  claim 1 , further comprising a second regulating part regulating the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other,
 wherein the second regulating part regulates the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other by sandwiching the inflow-surface portions and the outflow-surface portions in the air flow direction of the ones of the plurality of heat exchanger units that are vertically adjacent to each other at a middle of the long side portions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other.   
     
     
         7 . The outdoor unit for an air-conditioning apparatus of  claim 1 , further comprising a third regulating part regulating the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other,
 wherein the third regulating part regulates, in an up-and-down direction, the relative positions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other at side edge portions of the short side portions of the ones of the plurality of heat exchanger units that are vertically adjacent to each other, and provides play that allows the deviation in the air flow direction.   
     
     
         8 . The outdoor unit for an air-conditioning apparatus of  claim 1 ,
 wherein, in the heat exchanger, the long side portions are exposed as a back surface of the outdoor unit, and   wherein the outdoor unit further comprises a casing covering the short side portions of the heat exchanger and having a plurality of openings that allow passage of air.   
     
     
         9 . The outdoor unit for an air-conditioning apparatus of  claim 8 , further comprising a top plate placed over the casing and fixing the heat exchanger by pressing the heat exchanger downward. 
     
     
         10 . The outdoor unit for an air-conditioning apparatus of  claim 9 ,
 wherein the plurality of heat exchanger units are each formed into such an L-shape that the short side portion is continuous from the long side portion through the corner portion,   wherein the casing includes an outdoor-unit-side-surface portion that covers the short side portions of the heat exchanger, and an outdoor-unit-front-surface portion that is opposite to the long side portions of the heat exchanger exposed as the back surface of the outdoor unit,   wherein the outdoor unit further comprises a pillar portion that forms an outdoor-unit-opposite-side-surface portion at a portion of the outdoor unit opposite to the outdoor-unit-side-surface portion of the casing, side edge portions of the long side portions of the heat exchanger being fixed to the pillar portion, and   wherein the top plate is placed over the casing and the pillar portion, and fixes the heat exchanger by pressing the heat exchanger downward.