Window air conditioner

Abstract

A window air conditioner includes a casing, an indoor heat exchanger, an indoor fan assembly, an outdoor heat exchanger and an outdoor fan assembly. The casing includes a base, an indoor housing and an outdoor housing; the indoor heat exchange, the indoor fan assembly, the outdoor heat exchanger and the outdoor fan assembly are arranged on the base. A top of the indoor housing is lower than a top of the outdoor housing, and an avoiding groove recessed towards the base is formed between the indoor housing and the outdoor housing.

What is claimed is: 
     
         1 . A window air conditioner comprising:
 a casing;   an indoor heat exchanger disposed in the casing;   an indoor fan assembly disposed in the casing, the indoor fan assembly being configured to deliver indoor air to the indoor heat exchanger for heat exchange and then output the air back indoors;   an outdoor heat exchanger disposed in the casing; and   an outdoor fan assembly disposed in the casing, the outdoor fan assembly being configured to deliver outdoor air to the outdoor heat exchanger for heat exchange and then output the air back outdoors;   wherein the casing comprises:
 a base on which the indoor heat exchanger, the indoor fan assembly, the outdoor heat exchanger, and the outdoor fan assembly are disposed; 
 an indoor housing disposed on the base and covering the indoor heat exchanger and the indoor fan assembly; and 
 an outdoor housing disposed on the base and covering the outdoor heat exchanger and the outdoor fan assembly, the outdoor housing being connected to the indoor housing; 
   wherein a top of the indoor housing is lower than a top of the outdoor housing, and an avoiding groove recessed towards the base is formed between the indoor housing and the outdoor housing.   
     
     
         2 . The window air conditioner according to  claim 1 , wherein a maximum vertical distance from the top of the indoor housing to the base is h1, a maximum vertical distance from the top of the outdoor housing to the base is h2, and h1 and h2 satisfy a relation:
   0.5h2≤h1≤0.75h2.
   
     
     
         3 . The window air conditioner according to  claim 1 , wherein the indoor housing comprises an indoor top plate, the indoor top plate comprising:
 a first top plate portion;   a second top plate portion; and   a third top plate portion, the second top plate portion being connected between the first top plate portion and the third top plate portion, the first top plate portion being higher than the third top plate portion, and the third top plate portion being connected to the outdoor housing;   wherein the second top plate portion, the third top plate portion, and the outdoor housing together form the avoiding groove.   
     
     
         4 . The window air conditioner according to  claim 3 , wherein the second top plate portion extends obliquely downwards in a direction from the first top plate portion towards the third top plate portion. 
     
     
         5 . The window air conditioner according to  claim 3 , wherein the outdoor housing comprises:
 an outdoor top plate;   outdoor side plates connected to two sides of the outdoor top plate and connected to the base respectively; and   an outdoor front plate connected to the outdoor top plate and the outdoor side plates, and a lower end of the outdoor front plate being connected to the third top plate portion; and   wherein the second top plate portion, the third top plate portion, and the outdoor front plate together form the avoiding groove.   
     
     
         6 . The window air conditioner according to  claim 5 , wherein the outdoor housing further comprises:
 a lap plate connected to a lower end of the outdoor front plate and bent relative to the outdoor front plate, the lap plate overlapping the third top plate portion.   
     
     
         7 . The window air conditioner according to  claim 6 , wherein the indoor housing further comprises:
 indoor side plates connected to two sides of the indoor top plate and connected to the base respectively;   an indoor front plate connected to the indoor top plate and the indoor side plates, respectively; and   an indoor rear plate connected to the indoor top plate and the indoor side plates respectively, the indoor rear plate being located below the outdoor front plate.   
     
     
         8 . The window air conditioner according to  claim 7 , wherein the indoor housing comprises:
 an indoor front housing comprising the indoor front plate, a front portion of the first top plate portion, and front portions of the indoor side plates;   an indoor rear housing comprising the indoor rear plate, a rear portion of the first top plate portion, the second top plate portion, the third top plate portion, and rear portions of the indoor side plates;   wherein the front portion of the first top plate portion is connected to the rear portion of the first top plate portion, and the front portions of the indoor side plates are connected to the rear portions of the indoor side plates.   
     
     
         9 . The window air conditioner according to  claim 7 , wherein the outdoor side plates are provided with extension plates extending forward, the extension plates being connected to the lap plate, the extension plates overlapping the indoor side plates and being provided with sealing structure insertion slots. 
     
     
         10 . The window air conditioner according to  claim 1 , wherein the outdoor housing comprises an outdoor front plate facing the indoor housing, wherein the outdoor front plate is provided with an outdoor front air inlet, wherein the outdoor front air inlet is located above the avoiding groove. 
     
     
         11 . The window air conditioner according to  claim 1 ,
 wherein the indoor heat exchanger comprises:
 a first indoor heat exchanger; and 
 a second indoor heat exchanger, the first indoor heat exchanger being connected to the second indoor heat exchanger; 
   wherein the first indoor heat exchanger and the second indoor heat exchanger are obliquely disposed relative to the base, and the first indoor heat exchanger is oblique to the second indoor heat exchanger, and a distance from an upper end to a lower end of the first indoor heat exchanger is greater than a distance from an upper end to a lower end of the second indoor heat exchanger.   
     
     
         12 . The window air conditioner according to  claim 11 , wherein the distance from the upper end to the lower end of the first indoor heat exchanger is h1, and the distance from the upper end to the lower end of the second indoor heat exchanger is h2, and h1 and h2 satisfy a relation: h2≤0.5 h1. 
     
     
         13 . The window air conditioner according to  claim 11 , wherein heat exchange tubes in the first indoor heat exchanger are arranged in columns in a thickness direction of the first indoor heat exchanger, and the heat exchange tubes in the second indoor heat exchanger are arranged in b columns in a thickness direction of the second indoor heat exchanger, and a and b satisfy a relation: a>b. 
     
     
         14 . The window air conditioner according to  claim 11 , wherein the base is formed with a water collection tank below the outdoor fan assembly and the outdoor heat exchanger;
 wherein the window air conditioner further comprises:   a water collection tray disposed on the base and located below a rear end of the first indoor heat exchanger and a front end of the second indoor heat exchanger, the water collection tray having a drainage nozzle extending above the water collection tank.   
     
     
         15 . The window air conditioner according to  claim 14 , wherein the indoor housing is provided with a through hole, and the drainage nozzle passes through the through hole and extends into a space covered by the outdoor housing. 
     
     
         16 . The window air conditioner according to  claim 14 , wherein the water collection tray is provided with a first support base and a second support base, the first support base being located on left and right sides of a front edge of the water collection tray, the first support base being supported on left and right sides of the first indoor heat exchanger, and the second support base being supported on left and right sides of the second indoor heat exchanger. 
     
     
         17 . The window air conditioner according to  claim 15 , wherein the water collection tray is spaced apart from the base along a height direction of the casing, and an air inlet channel is formed between the water collection tray and the base, and an outlet of the air inlet channel being located below the second indoor heat exchanger. 
     
     
         18 . The window air conditioner according to  claim 17 , wherein a first indoor air inlet is formed on a front side of the indoor housing, a second indoor air inlet is formed on a front side of the base, and the first indoor air inlet and the second indoor air inlet are connected to the air inlet channel, respectively. 
     
     
         19 . The window air conditioner according to  claim 17 , wherein a bottom of the water collection tray is provided with a plurality of support ribs, the plurality of support ribs being supported on the base and extending in a length direction of the base. 
     
     
         20 . The window air conditioner according to  claim 17 , wherein the water collection tray comprises:
 a bottom plate;   a front water baffle connected to a front edge of the bottom plate, wherein the front water baffle is disposed relative to the bottom plate; and   a rear water baffle connected to a rear edge of the bottom plate, wherein the rear water baffle is disposed relative to the bottom plate, wherein the front water baffle is oblique to the rear water baffle.