Pipe setting structure, and indoor unit of air-conditioning apparatus

Abstract

A pipe setting structure includes a back housing, and a cover attached to the back housing. The back housing has a first recess and a second recess. The first recess is recessed from a surface of the back housing, and includes a first back portion. The second recess is adjacent to the first recess and recessed from the surface of the back housing, and includes a second back portion. The second back portion is located closer to the surface of the back housing than the first back portion. Between the first back portion and the second back portion, a step is provided.

1 . A pipe setting structure comprising:
 a back housing; and   a cover attached to the back housing,   wherein the back housing has a first recess and a second recess, the first recess being recessed from a surface of the back housing and including a first back portion, the second recess being adjacent to the first recess and recessed from the surface of the back housing, and including a second back portion,   wherein the second back portion is located closer to the surface of the back housing than the first back portion,   wherein a step is provided between the first back portion and the second back portion and   wherein the cover includes a rib that projects into the first recess, while covering the first recess and the second recess.   
     
     
         2 . (canceled) 
     
     
         3 . The pipe setting structure of  claim 1 , wherein the rib has a connecting portion that is continuous with a projecting portion projecting into the first recess, and that extends over the second recess. 
     
     
         4 . The pipe setting structure of  claim 1 , wherein the rib has a reinforcing rib that is located at a central portion of a projecting portion of the rib that projects into the first recess. 
     
     
         5 . The pipe setting structure of  claim 1 , wherein a plurality of the ribs are arranged side by side. 
     
     
         6 . The pipe setting structure of  claim 1 ,
 wherein each of the first recess and the second recess is a pipe accommodation space, and   wherein the rib is a plate-like body that linearly extends in a direction crossing a direction in which a pipe accommodated in the pipe accommodation space extends.   
     
     
         7 . The pipe setting structure of  claim 6 , wherein the first back portion and the second back portion each has protrusion ridge portions, the protrusion ridge portions extending in the direction crossing the direction in which the pipe accommodated in the pipe accommodation space extends. 
     
     
         8 . The pipe setting structure of  claim 7 , wherein at at least one of the first back portion and the second back portion, a pipe covered with a heat insulator having elastic resilience is accommodated such that the pipe bites into the protrusion ridge portions. 
     
     
         9 . The pipe setting structure of  claim 1 , wherein in at least one of the first recess and the second recess, a pipe covered with a heat insulator having elastic resilience is accommodated such that the pipe bites into the rib. 
     
     
         10 . The pipe setting structure of  claim 1 , wherein the rib includes a projecting portion that projects into the first recess, and that is chamfered. 
     
     
         11 . The pipe setting structure of  claim 1 , wherein the first recess and the second recess define a rectangular space in which the first back portion, the step, and the second back portion are continuous with each other. 
     
     
         12 . An indoor unit of an air-conditioning apparatus, comprising the pipe setting structure of any one of  claim 1 .