Window air conditioner

Abstract

A window air conditioner includes a housing, an indoor heat exchanger, an indoor fan assembly, an outdoor heat exchanger, an outdoor fan assembly, an indoor air duct casing body, and a sound insulation board. The sound insulation board is provided on on a side of the indoor air duct casing body toward the outdoor fan assembly, separates the outdoor heat exchanger and the outdoor fan assembly from the indoor fan assembly and the indoor heat exchange, and extends from a bottom to a top of the indoor air duct casing body.

What is claimed is: 
     
         1 . A window air conditioner, comprising:
 a housing;   an indoor heat exchanger provided in the housing;   an indoor fan assembly provided in the housing, wherein the indoor fan assembly delivers indoor air to the indoor heat exchanger for heat exchange and then outputs the air indoors;   an outdoor heat exchanger provided in the housing;   an outdoor fan assembly provided in the housing, wherein the outdoor fan assembly delivers outdoor air to the outdoor heat exchanger for heat exchange and then outputs the air outdoors;   an indoor air duct casing body located on a periphery of the indoor heat exchanger and the indoor fan assembly; and   a sound insulation board provided on a side of the indoor air duct casing body toward the outdoor fan assembly, wherein the sound insulation board separates the outdoor heat exchanger and the outdoor fan assembly from the indoor fan assembly and the indoor heat exchanger, wherein the sound insulation board extends from a bottom to a top of the indoor air duct casing body.   
     
     
         2 . The window air conditioner according to  claim 1 , wherein the indoor fan assembly comprises:
 an indoor front air duct provided with an air duct outlet;   an indoor rear air duct located at a side of the indoor front air duct away from the air duct outlet and communicating with the indoor front air duct; and   an indoor fan provided between the indoor front air duct and the indoor rear air duct and delivering indoor air from an air duct inlet to the air duct outlet;   wherein the side of the indoor air duct casing body toward the outdoor fan assembly is a side of the indoor rear air duct toward the outdoor fan assembly.   
     
     
         3 . The window air conditioner according to  claim 2 , wherein:
 the sound insulation board is provided with a first positioning portion and first mounting portions; and   a rear surface of the indoor rear air duct is provided with a second positioning portion and second mounting portions, the first positioning portion being in a positioning fit with the second positioning portion, and the first mounting portions and the second mounting portions being connected through fasteners.   
     
     
         4 . The window air conditioner according to  claim 3 , wherein the first positioning portion is configured as a positioning hole, a reinforcing protrusion protruding forward is provided in the middle of the sound insulation board, and the positioning hole is provided at the reinforcing protrusion; and
 wherein the second positioning portion is configured as a positioning post protruding backward, and the positioning post passes through the positioning hole.   
     
     
         5 . The window air conditioner according to  claim 3 , wherein a plurality of first mounting portions are provided and distributed on left and right sides of the sound insulation board, a plurality of second mounting portions are provided and distributed on left and right sides of the indoor rear air duct, and the plurality of first mounting portions and the plurality of second mounting portions are correspondingly connected through the fasteners. 
     
     
         6 . The window air conditioner according to  claim 3 , wherein the sound insulation board comprises:
 a lower insulation board portion provided with the first positioning portion and the first mounting portions; and   an upper insulation board portion connected to a top of the lower insulation board portion and bent relative to the lower insulation board portion in a direction toward the indoor rear air duct.   
     
     
         7 . The window air conditioner according to  claim 6 , wherein the lower insulation board portion is provided with a reinforcing rib ring on a side toward the outdoor fan assembly. 
     
     
         8 . The window air conditioner according to  claim 6 , wherein the housing is provided with first outdoor air inlets on two opposite sides and air makeup inlets at a top, the outdoor fan assembly delivers outdoor air at the first outdoor air inlets and the air makeup inlets to the outdoor heat exchanger for heat exchange and then outputs the air outdoors, and the air makeup inlets are located directly above the upper insulation board portion. 
     
     
         9 . The window air conditioner according to  claim 2 , wherein an indoor air duct is formed inside the indoor air duct casing body, a portion of the indoor air duct close to an indoor space being the indoor front air duct, a portion of the indoor air duct away from the indoor space being the indoor rear air duct, and a rear surface of the indoor rear air duct being a rear surface of the indoor air duct casing body, wherein the sound insulation board is provided on the rear surface of the indoor rear air duct. 
     
     
         10 . The window air conditioner according to  claim 1 , wherein the indoor air duct casing body has a rear surface, wherein the sound insulation board is provided on the rear surface of the indoor air duct casing body. 
     
     
         11 . The window air conditioner according to  claim 1 , wherein the sound insulation board is arranged in a transverse direction of the window air conditioner and located on a path through which noise propagates toward an indoor space. 
     
     
         12 . The window air conditioner according to  claim 1 , wherein the housing comprises a base and an outer housing, the base comprising an indoor base and an outdoor base adjacent to each other; and wherein the sound insulation board is provided at an intersection boundary between the indoor base and the outdoor base and faces indoors, and the sound insulation board extends from the outdoor base to the top of the indoor air duct casing body. 
     
     
         13 . The window air conditioner according to  claim 12 , wherein the indoor base is connected to the outdoor base, and the indoor base is higher than the outdoor base. 
     
     
         14 . The window air conditioner according to  claim 1 , wherein the sound insulation board is made of a high-density metal sheet. 
     
     
         15 . The window air conditioner according to  claim 2 , wherein the indoor rear air duct is provided with an upper stopper portion and a lower stopper portion, wherein a top of the sound insulation board is in a stop fit with the upper stopper portion in a up-down direction, and wherein a bottom of the sound insulation board is in a stop fit with the lower stopper portion in the up-down direction. 
     
     
         16 . The window air conditioner according to  claim 15 , wherein the upper stopper portion is located in the middle of an upper edge of the indoor rear air duct and configured as a baffle protruding backward, wherein the top of the sound insulation board is provided with a clearance slot, and the baffle extends into the clearance slot and is connected to the clearance slot through fasteners. 
     
     
         17 . The window air conditioner according to  claim 15 , wherein the lower stopper portion is configured as a stopping edge extending in a left-right direction, and the bottom of the sound insulation board is provided above the stopping edge. 
     
     
         18 . The window air conditioner according to  claim 2 , further comprising:
 an electric control box provided between the outdoor fan assembly and the indoor fan assembly and electrically connected to the outdoor fan assembly and the indoor fan assembly, respectively; and   wherein a first wiring channel is provided at a top of the indoor rear air duct, and a second wiring channel is provided at a top of the sound insulation board, wherein the first wiring channel corresponds to the second wiring channel, and a wiring harness connected between the electric control box and the indoor fan assembly passes through the first wiring channel and the second wiring channel.   
     
     
         19 . The window air conditioner according to  claim 2 , further comprising:
 a compressor provided between the outdoor fan assembly and the indoor fan assembly and electrically connected to the indoor heat exchanger and the outdoor heat exchanger, respectively; and   wherein a first pipe notch is provided at a bottom of the indoor rear air duct, and a second pipe notch is provided at a bottom of the sound insulation board, wherein the first pipe notch corresponds to the second pipe notch, and a pipe connected between the compressor and the indoor heat exchanger passes through the first pipe notch and the second pipe notch.   
     
     
         20 . The window air conditioner according to  claim 19 , wherein the sound insulation board separates the outdoor heat exchanger and the outdoor fan assembly into a rear section, and the indoor fan assembly and the indoor heat exchanger into a front section, and the compressor is located in a region where the rear section is located.