Air conditioner and component unit

Abstract

A component unit of an air conditioner includes a casing having a metallic top panel, a heat exchanger disposed in the casing and including a heat transfer tube made of a material that has higher ionization tendency than the metallic top panel, a heat insulating member, having an opening, that covers an inner surface of the metallic top panel, a supporter, having a fixing part fixed to the inner surface inside the opening, that supports the heat exchanger, and a preventing member that prevents condensation water from traveling to the supporter from a region of the inner surface between an edge of the opening and the fixing part.

What is claimed is: 
     
         1 . A component unit of an air conditioner, comprising:
 a casing having a metallic top panel;   a heat exchanger disposed in the casing and including a heat transfer tube made of a material having higher ionization tendency than the metallic top panel;   a heat insulating member, having an opening, that covers an inner surface of the metallic top panel;   a supporter, having a fixing part fixed to the inner surface inside the opening, that supports the heat exchanger; and   a preventing member that prevents condensation water from traveling to the supporter from a region of the inner surface between an edge of the opening and the fixing part.   
     
     
         2 . The component unit of  claim 1 , wherein the preventing member prevents the condensation water generated in the region from traveling to the supporter. 
     
     
         3 . The component unit of  claim 2 , wherein the preventing member includes a projection extending in a downward direction of the unit from the region. 
     
     
         4 . The component unit of  claim 3 , wherein the preventing member further includes a base, disposed between the projection and the fixing part, having a shorter length than the projection in the downward direction. 
     
     
         5 . The component unit of  claim 3 , wherein the projection extends to the fixing part. 
     
     
         6 . The component unit of  claim 1 , wherein the preventing member eliminates or reduces generation of the condensation water in the region. 
     
     
         7 . The component unit of  claim 6 , wherein the preventing member includes an auxiliary heat insulating member, separate from the heat insulating member, that covers the region. 
     
     
         8 . The component unit of  claim 1 , wherein the preventing member includes an intermediate portion between the metallic top panel and the fixing part. 
     
     
         9 . The component unit of  claim 8 , further comprising:
 a fastening member that fastens the fixing part to the metallic top panel together with the intermediate portion.   
     
     
         10 . The component unit of  claim 9 , wherein the intermediate portion has higher hardness than the heat insulating member. 
     
     
         11 . The component unit of  claim 9 , wherein
 the fixing part has a fastening hole through which the fastening member passes, and   the component unit further comprises a resin fixing piece that:
 is disposed under the fixing part, 
 is fixed to the fastening member, and 
 closes a clearance between an edge of the fastening hole and the fastening member. 
   
     
     
         12 . The component unit of  claim 8 , wherein
 the intermediate portion has a cutout, and   the fixing part is configured to contact the metallic top panel through the cutout.   
     
     
         13 . The component unit of  claim 1 , wherein the preventing member is made of a resin material. 
     
     
         14 . An air conditioner comprising:
 the component unit according to  claim 1 .