Indoor Unit of Air Conditioner

Abstract

An indoor unit of air conditioner comprises a panel body ( 2 ) enclosing side portions and a top portion of the air conditioner, a rear shell enclosing a rear portion of the air conditioner, and the front panel ( 1 ) arranged in the front of the air conditioner and closely connected to the panel body ( 2 ). The rear shell, the panel body ( 2 ) and the front panel ( 1 ) form an inner chamber of the air conditioner in which a heat exchanger, a control element and a fan component are provided. Side surfaces of the indoor unit of air conditioner are of a U shape structure, and the front, the rear and the bottom surfaces of the lower portion of the indoor unit of air conditioner are formed by more than one curved surface.

1 . An indoor unit of air conditioner comprising: a panel body ( 2 ) enclosing side portions and a top portion of the air conditioner for installing a front panel ( 1 ), a rear shell enclosing a rear portion of the air conditioner, and the front panel ( 1 ) arranged in the front of the air conditioner and closely connected to the panel body ( 2 ); the rear shell, the panel body ( 2 ) and the front panel ( 1 ) form an inner chamber of the air conditioner in which a heat exchanger, a control element and a fan component are provided, wherein, side surfaces of the indoor unit of air conditioner are of a U shape structure, and the front, the rear and the bottom surfaces of the lower portion of the indoor unit of air conditioner are formed by more than one curved surface. 
     
     
         2 . The indoor unit of air conditioner according to  claim 1 , wherein the front panel ( 1 ) comprises, from top downwards in sequence, a first combining surface ( 11 ), a second combining surface ( 12 ) and a third combining surface ( 13 ); the sectional profile line of the first combining surface ( 11 ) is of a straight line or an arc line with a curvature approaching to zero; the sectional profile line of the second combining surface ( 12 ) is of a curve with a curvature gradually increased from top to bottom, the maximum curvature is less than or equal to 0.025; and the sectional profile line of the third combining surface ( 13 ) is of a curve with a curvature gradually decreased from top to bottom, the minimum curvature is larger than 0.0005. 
     
     
         3 . The indoor unit of air conditioner according to  claim 1 , wherein the rear shell is mounted at a rear portion of the panel body ( 2 ), and a front lower portion of the panel body ( 2 ) is closely spliced to a bottom portion of the front panel ( 1 ); wherein a combination of the panel body ( 2 ) and the rear shell comprises, from front backwards in sequence, a fourth combining surface ( 21 ), a fifth combining surface ( 22 ), a sixth combining surface ( 23 ) and a seventh combining surface ( 24 ). 
     
     
         4 . (canceled) 
     
     
         5 . The indoor unit of air conditioner according to  claim 1 , wherein the rear shell is mounted at a rear portion of the panel body ( 2 ), and a combination of the panel body ( 2 ) and the rear shell comprises, from front backwards in sequence, a fourth combining surface ( 21 ), a fifth combining surface ( 22 ), a sixth combining surface ( 23 ) and a seventh combining surface ( 24 ). 
     
     
         6 . The indoor unit of air conditioner according to  claim 1 , wherein the front panel ( 1 ) covers the front of the panel body ( 2 ), and a width of the front panel ( 1 ) is larger than a width of the front portion of the panel body ( 2 ), a front panel skirt structure ( 10 ) is formed at at least one side of joint of the front panel ( 1 ) and the panel body ( 2 ). 
     
     
         7 . The indoor unit of air conditioner according to  claim 1 , wherein the panel body ( 2 ) comprises a rear frame ( 29 ) at a rear portion of the panel body ( 2 ), a left side plate ( 28 ) and a right side plate ( 28 ), at least one side of the rear frame ( 29 ) protrudes outside the side plate ( 28 ) and forms a panel body skirt structure ( 20 ). 
     
     
         8 . The indoor unit of air conditioner according to  claim 1 , wherein the front panel ( 1 ) covers the front of the panel body ( 2 ), a width of the front panel ( 1 ) is larger than a width of the front portion of the panel body ( 2 ), and thus a front panel skirt structure ( 10 ) is formed at at least one side of joint of the front panel ( 1 ) and the panel body ( 2 ); the panel body ( 2 ) comprises a rear frame ( 29 ) at a rear portion of the panel body ( 2 ), a left side plate ( 28 ) and a right side plate ( 28 ), and at least one side of the rear frame ( 29 ) protrudes outside the side plate ( 28 ) and forms a panel body skirt structure ( 20 ); and the front panel skirt structure ( 10 ) and the panel body skirt structure ( 20 ) are connected to form a U shape decorative edge of the side portion of the indoor unit of air conditioner. 
     
     
         9 . The indoor unit of air conditioner according to  claim 8 , wherein the front panel skirt structure ( 10 ) is formed at each of a left side and a right side of joint of the front panel ( 1 ) and the panel body ( 2 ); the panel body skirt structure ( 20 ) is formed at each of a left side and a right side of the panel body ( 2 ), such that each of a left side and a right side of the indoor unit has the decorative edge. 
     
     
         10 . The indoor unit of air conditioner according to  claim 9 , wherein top portions of the front panel ( 1 ) and the rear frame ( 29 ) are higher than the top surfaces of the rear shell, the left side plate and the right side plate. 
     
     
         11 . The indoor unit of air conditioner according to  claim 6 , wherein the width of the front panel skirt structure ( 10 ) is between 2 and 8 mm, and a thickness of the front panel skirt structure ( 10 ) is between 3 and 10 mm. 
     
     
         12 . The indoor unit of air conditioner according to  claim 7 , wherein the width of the panel body skirt structure ( 20 ) is between 2 and 8 mm, and a thickness of the panel body skirt structure ( 20 ) is between 3 and 10 mm. 
     
     
         13 . The indoor unit of air conditioner according to  claim 8 , wherein the width of the front panel skirt structure ( 10 ) and the width of the panel body skirt structure ( 20 ) are between 2 and 8 mm, and the thickness of the front panel skirt structure ( 10 ) and the thickness of the panel body skirt structure ( 20 ) are between 3 and 10 mm. 
     
     
         14 . The indoor unit of air conditioner according to  claim 1 , wherein a convex surface ( 25 ) is provided at the front lower portion of the panel body  2 , the bottom portion of the front panel ( 1 ) is arranged on the convex surface ( 25 ), and the front panel ( 1 ) is fixedly connected to the panel body ( 2 ) via a fastening mechanism. 
     
     
         15 . The indoor unit of air conditioner according to  claim 14 , wherein the fastening mechanism is a connecting mechanism of bayonet and groove. 
     
     
         16 . The indoor unit of air conditioner according to  claim 14 , wherein a width of the convex surface ( 25 ) is equal to a thickness of the front panel ( 1 ). 
     
     
         17 . The indoor unit of air conditioner according to  claim 1 , wherein an opening ( 291 ) for installing the rear shell is provided at a back portion of the panel body ( 2 ), and a rear boss ( 27 ) is provided at a lower edge of the opening ( 291 ). 
     
     
         18 . The indoor unit of air conditioner according to  claim 17 , wherein the size of the rear boss ( 27 ) in the horizontal direction is less than the size of the rear frame ( 29 ) in the horizontal direction. 
     
     
         19 . The indoor unit of air conditioner according to  claim 17 , wherein the rear boss ( 27 ) is arranged transversely, and has upward bending portions at a left side and a right end thereof. 
     
     
         20 . The indoor unit of air conditioner according to  claim 6 , wherein a notch ( 221 ) is provided at one side of the panel body to form an air supply passage between the notch and the front panel skirt structure ( 10 ). 
     
     
         21 . The indoor unit of air conditioner according to  claim 4 , wherein the sectional profile lines of the fourth combining surface ( 21 ), the fifth combining surface ( 22 ), the sixth combining surface ( 23 ) and the seventh combining surface ( 24 ) have different curvatures, respectively, such that a bottom of the air conditioner has an arc transition structure. 
     
     
         22 . The indoor unit of air conditioner according to  claim 5 , wherein the sectional profile lines of the fourth combining surface ( 21 ), the fifth combining surface ( 22 ), the sixth combining surface ( 23 ) and the seventh combining surface ( 24 ) have different curvatures, respectively, such that a bottom of the air conditioner has an arc transition structure.