Indoor unit of air conditioner

Abstract

An indoor unit of an air conditioner includes: a bottom shell, at least two air passages (11) are provided abreast in the bottom shell (1); an air passage cover plate (2), provided on the at least two air passages (11) in a covering manner, flow guide openings (21) corresponding to the at least two air passages (11) are provided in the air passage cover plate (2) respectively; at least two centrifugal fans (3), provided in the at least two air passages (11) respectively and provided opposite to the corresponding flow guide openings (21); and an evaporator (4), provided on a side, far away from the bottom shell (1), of the air passage cover plate (2), each of the flow guide openings (21) is provided opposite to the evaporator (4).

What is claimed is: 
     
         1 . An indoor unit of an air conditioner, comprising:
 a bottom shell, at least two air passages are provided abreast in the bottom shell;   an air passage cover plate, provided on the at least two air passages in a covering manner, flow guide openings corresponding to the at least two air passages respectively are formed in the air passage cover plate;   at least two centrifugal fans, provided in the at least two air passages respectively and provided opposite to the corresponding flow guide openings; and   an evaporator, provided on a side, far away from the bottom shell, of the air passage cover plate, each of the flow guide openings is provided opposite to the evaporator;   wherein the indoor unit of an air conditioner further comprising a base for bearing the evaporator, wherein a placement groove adapted to the evaporator is provided in the base; a bearing platform for bearing the evaporator is provided on a sidewall of the placement groove, and a drain trough is provided in the bearing platform; or, a support vertical plate for supporting the evaporator is provided in the placement groove, and the support vertical plate comprises a plurality of support plate segments provided at intervals.   
     
     
         2 . The indoor unit of the air conditioner as claimed in  claim 1 , wherein the base is connected to the air passage cover plate, and is positioned on a side, back on to the bottom shell, of the air passage cover plate. 
     
     
         3 . The indoor unit of the air conditioner as claimed in  claim 1 , wherein the evaporator comprises:
 an evaporator body; and   a bottom frame, provided below the evaporator body, a plurality of drain holes is provided in the bottom frame.   
     
     
         4 . The indoor unit of the air conditioner as claimed in  claim 3 , wherein the drain holes are divided into multiple rows of drain holes, and the drain holes in every two adjacent rows are provided in a staggered manner. 
     
     
         5 . The indoor unit of the air conditioner as claimed in  claim 1 , wherein the at least two air passages comprise a first air passage and a second air passage adjacent to the first air passage, and an electric box mounting part is provided between the first air passage and the second air passage. 
     
     
         6 . The indoor unit of the air conditioner as claimed in  claim 5 , wherein a first upper volute tongue is provided on a side, close to the second air passage, of a first end of the first air duct, a second upper volute tongue is provided on a side, close to the first air passage, of a first end of the second air passage, and the first upper volute tongue and the second upper volute tongue are provided on one side of the electric box mounting part respectively. 
     
     
         7 . The indoor unit of the air conditioner as claimed in  claim 5 , further comprising a first wiring passage extending from the electric box mounting part to two sides of the electric box mounting part. 
     
     
         8 . The indoor unit of the air conditioner as claimed in  claim 7 , wherein the first wiring passage is provided in one side, back on to the bottom shell, of the air passage cover plate. 
     
     
         9 . The indoor unit of the air conditioner as claimed in  claim 5 , further comprising a second wiring passage, wherein the second wiring passage is provided between the first air passage and the second air passage, and extends along the air passages. 
     
     
         10 . The indoor unit of the air conditioner as claimed in  claim 9 , further comprising a third wiring passage and a fourth wiring passage, wherein the third wiring passage extends from the second wiring passage to a corresponding centrifugal fan in the first air passage, and the fourth wiring passage extends from the second wiring passage to a corresponding centrifugal fan in the second air passage. 
     
     
         11 . An indoor unit of an air conditioner, comprising:
 a bottom shell, at least two air passages are provided abreast in the bottom shell;   an air passage cover plate, provided on the at least two air passages in a covering manner, flow guide openings corresponding to the at least two air passages respectively are formed in the air passage cover plate;   at least two centrifugal fans, provided in the at least two air passages respectively and provided opposite to the corresponding flow guide openings; and   an evaporator, provided on a side, far away from the bottom shell, of the air passage cover plate, each of the flow guide openings is provided opposite to the evaporator;   wherein the at least two air passages comprise a first air passage and a second air passage adjacent to the first air passage, and an electric box mounting part is provided between the first air passage and the second air passage.   
     
     
         12 . The indoor unit of the air conditioner as claimed in  claim 11 , wherein a first upper volute tongue is provided on a side, close to the second air passage, of a first end of the first air duct, a second upper volute tongue is provided on a side, close to the first air passage, of a first end of the second air passage, and the first upper volute tongue and the second upper volute tongue are provided on one side of the electric box mounting part respectively. 
     
     
         13 . The indoor unit of the air conditioner as claimed in  claim 11 , further comprising a first wiring passage extending from the electric box mounting part to two sides of the electric box mounting part. 
     
     
         14 . The indoor unit of the air conditioner as claimed in  claim 13 , wherein the first wiring passage is provided in one side, back on to the bottom shell, of the air passage cover plate. 
     
     
         15 . The indoor unit of the air conditioner as claimed in  claim 11 , further comprising a second wiring passage, wherein the second wiring passage is provided between the first air passage and the second air passage, and extends along the air passages. 
     
     
         16 . The indoor unit of the air conditioner as claimed in  claim 15 , further comprising a third wiring passage and a fourth wiring passage, wherein the third wiring passage extends from the second wiring passage to a corresponding centrifugal fan in the first air passage, and the fourth wiring passage extends from the second wiring passage to a corresponding centrifugal fan in the second air passage.