Indoor unit of hvac apparatus, and hvac apparatus

Abstract

An indoor unit of an HVAC apparatus includes a shell including a plurality of shell plates that enclose to form an accommodation chamber having an installation area. The plurality of shell plates includes a shell bottom plate and a shell side plate. The indoor unit further includes a heat exchange assembly arranged in the accommodation chamber, and a refrigerant detection device arranged in the installation area and configured to detect refrigerant that leaks from the heat exchange assembly. A first distance between the refrigerant detection device and the shell bottom plate is smaller than or equal to ⅓ of a height of the shell, and a second distance between the refrigerant detection device and a shell side plate is smaller than or equal to ⅓ of a width of the shell.

1 . An indoor unit of an HVAC apparatus comprising:
 a shell including a plurality of shell plates that enclose to form an accommodation chamber having an installation area, the plurality of shell plates including a shell bottom plate and a shell side plate;   a heat exchange assembly, arranged in the accommodation chamber; and   a refrigerant detection device, arranged in the installation area and configured to detect refrigerant that leaks from the heat exchange assembly;   wherein a first distance between the refrigerant detection device and the shell bottom plate is smaller than or equal to ⅓ of a height of the shell, and a second distance between the refrigerant detection device and a shell side plate is smaller than or equal to ⅓ of a width of the shell.   
     
     
         2 . The indoor unit according to  claim 1 , wherein the first distance or the second distance is smaller than or equal to 110 mm. 
     
     
         3 . The indoor unit according to  claim 1 , further comprising:
 a water receiving tray, at least partially arranged at the shell bottom plate or the shell side plate.   
     
     
         4 . The indoor unit according to  claim 1 , wherein the refrigerant detection device includes:
 a body; and   a first installation plate and a second installation plate that protrude out of the body, are connected to each other, and intersect with each other.   
     
     
         5 . The indoor unit according to  claim 4 , wherein:
 the body includes a side plate member and a bottom plate member that are connected to each other and intersect with each other;   the first installation plate protrudes out of the side plate member and is coplanar with the side plate member; and   the second installation plate protrudes out of the bottom plate member and is coplanar with the bottom plate member.   
     
     
         6 . The indoor unit according to  claim 4 , wherein:
 the heat exchange assembly includes a heat exchanger; and   the refrigerant detection device is fixedly connected to the heat exchanger through the first installation plate or the second installation plate.   
     
     
         7 . The indoor unit according to  claim 6 , wherein:
 the heat exchanger includes a first side plate and a second side plate that intersect with each other and are connected to each other; and   the refrigerant detection device is fixedly connected to the first side plate or the second side plate.   
     
     
         8 . The indoor unit according to  claim 6 , further comprising:
 a connection bracket connected to the heat exchanger;   wherein the first installation plate or the second installation plate is fixedly connected to the connection bracket.   
     
     
         9 . The indoor unit according to  claim 8 , wherein:
 the connection bracket includes a first connection plate and a second connection plate that are connected to each other and intersect with each other;   the first connection plate is fixedly connected to the first installation plate or the second installation plate; and   the second connection plate is fixedly connected to the heat exchanger.   
     
     
         10 . The indoor unit according to  claim 9 , wherein:
 a first positioning side plate is provided on a side of the first connection plate that is away from the second connection plate, and the first positioning side plate and the first connection plate are connected to each other and intersect with each other; and/or   a second positioning side plate is provided on a side of the second connection plate that is away from the first connection plate, and the second positioning side plate and the second connection plate are connected to each other and intersect with each other.   
     
     
         11 . An HVAC apparatus comprising:
 an indoor unit including:
 a shell including a plurality of shell plates that enclose to form an accommodation chamber having an installation area, the plurality of shell plates including a shell bottom plate and a shell side plate; 
 a heat exchange assembly, arranged in the accommodation chamber; and 
 a refrigerant detection device, arranged in the installation area and configured to detect refrigerant that leaks from the heat exchange assembly; 
 wherein a first distance between the refrigerant detection device and the shell bottom plate is smaller than or equal to ⅓ of a height of the shell, and a second distance between the refrigerant detection device and a shell side plate is smaller than or equal to ⅓ of a width of the shell. 
   
     
     
         12 . The HVAC according to  claim 11 , wherein the first distance or the second distance is smaller than or equal to 110 mm. 
     
     
         13 . The HVAC according to  claim 11 , wherein the indoor unit further includes:
 a water receiving tray, at least partially arranged at the shell bottom plate or the shell side plate.   
     
     
         14 . The HVAC according to  claim 11 , wherein the refrigerant detection device includes:
 a body; and   a first installation plate and a second installation plate that protrude out of the body, are connected to each other, and intersect with each other.   
     
     
         15 . The HVAC according to  claim 14 , wherein:
 the body includes a side plate member and a bottom plate member that are connected to each other and intersect with each other;   the first installation plate protrudes out of the side plate member and is coplanar with the side plate member; and   the second installation plate protrudes out of the bottom plate member and is coplanar with the bottom plate member.   
     
     
         16 . The HVAC according to  claim 14 , wherein:
 the heat exchange assembly includes a heat exchanger; and   the refrigerant detection device is fixedly connected to the heat exchanger through the first installation plate or the second installation plate.   
     
     
         17 . The HVAC according to  claim 16 , wherein:
 the heat exchanger includes a first side plate and a second side plate that intersect with each other and are connected to each other; and   the refrigerant detection device is fixedly connected to the first side plate or the second side plate.   
     
     
         18 . The HVAC according to  claim 16 , wherein:
 the indoor unit further includes a connection bracket connected to the heat exchanger; and   the first installation plate or the second installation plate is fixedly connected to the connection bracket.   
     
     
         19 . The HVAC according to  claim 18 , wherein:
 the connection bracket includes a first connection plate and a second connection plate that are connected to each other and intersect with each other;   the first connection plate is fixedly connected to the first installation plate or the second installation plate; and   the second connection plate is fixedly connected to the heat exchanger.   
     
     
         20 . The HVAC according to  claim 19 , wherein:
 a first positioning side plate is provided on a side of the first connection plate that is away from the second connection plate, and the first positioning side plate and the first connection plate are connected to each other and intersect with each other; and/or   a second positioning side plate is provided on a side of the second connection plate that is away from the first connection plate, and the second positioning side plate and the second connection plate are connected to each other and intersect with each other.