Top Plate Structure for High Location Installation Type Air Conditioner

Abstract

A high location installation type air conditioner includes a body casing ( 3 ) for accommodating a fan ( 5 ), a fan motor ( 9 ), and a heat exchanger ( 4 ), and a top plate ( 32 ) forming a top surface of the body casing ( 3 ) for suspending the fan ( 5 ), the fan motor ( 9 ), and the heat exchanger ( 4 ). The top plate ( 32 ) includes a plurality of radial reinforcing ribs extending from a central portion of the top plate ( 32 ) at which the fan motor ( 9 ) is supported to a peripheral portion of the top plate ( 32 ) at which the heat exchanger ( 4 ) is supported. The plurality of reinforcing ribs include a reinforcing rib ( 32 a ′) protruding from a front surface of the top plate ( 32 ) and a reinforcing rib ( 32 a ) protruding from a rear surface of the top plate ( 32 ) to improve rigidity of the top plate ( 32 ).

1 . A top plate structure for an air conditioner including a body casing ( 3 ) for accommodating a fan ( 5 ), a fan motor ( 9 ), and a heat exchanger ( 4 ), and a top plate ( 32 ) forming a top surface of the body casing for suspending the fan ( 5 ), the fan motor ( 9 ), and the heat exchanger ( 4 ), wherein the top plate ( 32 ) has a plurality of radial reinforcing ribs extending from a central portion of the top plate at which the fan motor ( 9 ) is supported to a peripheral portion of the top plate at which the heat exchanger ( 4 ) is supported, the top plate structure being characterized in that:
 the plurality of reinforcing ribs include a reinforcing rib ( 32   a ′) protruding from a front surface of the top plate ( 32 ) and a reinforcing rib ( 32   a ) protruding from a rear surface of the top plate.   
     
     
         2 . The top plate structure according to  claim 1 , characterized in that the reinforcing rib ( 32   a ′) protruding from the front surface of the top plate ( 32 ) and the reinforcing rib ( 32   a ) protruding from the rear surface are alternately arranged in a circumferential direction of the top plate ( 32 ). 
     
     
         3 . The top plate structure according to  claim 1  or  2 , characterized in that the plurality of reinforcing ribs include a plurality of long main reinforcing ribs ( 32   a ) and a plurality of short sub-reinforcing ribs ( 34 ) arranged between the main reinforcing ribs ( 32   a ), and the main reinforcing ribs protrude from one of a front surface and a rear surface of the top plate ( 32 ) and the sub-reinforcing ribs ( 34 ) protrude from the other one of the front surface and the 
     
     
         4 . The top plate structure according to  claim 1 , characterized in that the reinforcing ribs ( 32   a ′), ( 32   a ), ( 34 ) each have a depth that changes in a longitudinal direction of the reinforcing rib, and the depth at two end portions of each reinforcing rib is less than the depth between the two end portions. 
     
     
         5 . The top plate structure according to  claim 1 , characterized in that the top plate (32) has a plate thickness that is set in a range of 0.6 to 0.7 mm. 
     
     
         6 . The top plate structure according to  claim 1 , characterized in that the reinforcing ribs ( 32   a ′), ( 32   a ), ( 34 ) each have a depth of 8.0 to 10.0 mm.