Refrigerator with improved evaporator installation structure

Abstract

A refrigerator with a body comprising a storage liner at a bottommost position; a top cover, arranged to divide the storage liner into a storage space at the upper part and a cooling space at the lower part; and an evaporator, arranged in the cooling space and configured to cool airflow entering the cooling space to form cooling airflow; the evaporator is placed on a bottom wall of the storage liner, and the bottom wall is provided with a limit structure at the front part and rear part of the evaporator. The bottommost space of the refrigerator is a cooling space, which increases the height of the storage space above the cooling space and improves user experience; the evaporator is placed on the bottom wall of the storage liner, and the bottom wall is provided with a limit structure at the front part and rear part of the evaporator.

1 . A refrigerator, comprising:
 a refrigerator body, comprising a storage liner at a bottommost position;   a top cover, arranged to divide the storage liner into a storage space at the upper part and a cooling space at the lower part; and   an evaporator, arranged in the cooling space and configured to cool an airflow entering the cooling space to form a cooling airflow; wherein   the top cover does not completely shield an upper surface of the evaporator, a front section of the upper surface of the evaporator is not shielded by the top cover, and a space between the top cover and the upper surface of the evaporator opposite to the top cover is filled with an air shield foam.   
     
     
         2 . The refrigerator according to  claim 1 , wherein the evaporator comprises a main body part and an upper cover plate, the main body part comprises a plurality of fins arranged in parallel and a coil passing through the fins;
 a front part of the upper cover plate is provided with a plurality of vent holes; and   the top cover does not completely shield the upper surface of the evaporator, such that the vent holes are exposed, and an air flow entering the cooling space passes through the vent holes to reach the main body part to be cooled.   
     
     
         3 . The refrigerator according to  claim 2 , wherein the evaporator is placed on a bottom wall of the storage liner, and the bottom wall is provided with a limit structure at the front of and at the rear of the evaporator respectively, to realize front and rear limits of the evaporator;
 wherein the limit structures comprise:   at least one first rib located at the front of the evaporator, and   at least two second ribs in spaced arrangement located at the rear of the evaporator;   wherein the evaporator further comprises a lower cover plate, arranged below the main body part and comprising a cover body, a first extension portion and a second extension portion, wherein the cover body is attached to the main body part, and the first extension portion and the second extension portion are formed at the front and rear sides of the cover body respectively;   wherein the first extension portion and the second extension portion cooperate with the limit structures respectively to realize the front and rear limits.   
     
     
         4 . The refrigerator according to  claim 1 , further comprising:
 at least one return air hood, arranged at a front end of the top cover, and confining the cooling space together with the top cover and a bottom wall of the storage liner;   wherein the return air hood comprises:   a return air frame on the front side, a front wall surface of which is provided with a first opening, and a rear end of which is open.   
     
     
         5 . The refrigerator according to  claim 4 , wherein the first opening is divided into a first front return air inlet at the upper part and a second front return air inlet at the lower part, to facilitate the back flow of return air in the storage space to the cooling space through the first front return air inlet and the second front return air inlet. 
     
     
         6 . The refrigerator according to  claim 5 , wherein the return air hood further comprises:
 a return air rear cover, arranged in the return air frame to divide the first opening into the first front return air inlet and the second front return air inlet.   
     
     
         7 . The refrigerator according to  claim 6 , wherein the return air rear cover comprises a third flow guide inclined section extending forward and downward from back to front, and the third flow guide inclined section is provided with second openings, such that return air entering from the first front return air inlet enters the cooling space via the second openings, and enters the evaporator from an upper section of the evaporator to exchange heat with the evaporator. 
     
     
         8 . The refrigerator according to  claim 7 , wherein
 the return air rear cover further comprises a first shielding portion extending backward and upward from the third flow guide inclined section to the front end of the top cover, the first shielding portion is configured to shield a section of the upper surface of the evaporator that is not shielded by the top cover, and the first shielding portion is spaced from the upper surface of the evaporator to form an air flow bypass communicated with the second openings, so that at least part of the return air entering through the second openings enters the evaporator from the upper section of the evaporator via the air flow bypass.   
     
     
         9 . The refrigerator according to  claim 1 , further comprising:
 an air supply duct, arranged on the inner side of a rear wall of the storage liner, communicated with the cooling space, and configured to deliver at least part of the cooling airflow into the storage space;   wherein the top cover further comprises a supporting portion protruding upward from a rear end of a top cover body of the top cover;   a front wall surface of the air supply duct is provided with a bearing portion protruding forward, and the top cover and the air supply duct are arranged such that the supporting portion supports the bearing portion to prevent the air supply duct from falling; and   the air supply duct comprises a front air duct cover plate and a rear air duct cover plate located on the rear side of the front air duct cover plate, the front air duct cover plate being provided with the bearing portion.   
     
     
         10 . The refrigerator according to  claim 9 , wherein positioning protrusions protruding backward are formed at the rear end of the top cover, positioning grooves corresponding to and adapted to the positioning protrusions in a one-to-one manner are formed on the rear wall of the storage liner, and the positioning protrusions are near two lateral sides of the rear end of the top cover respectively, and are located below the supporting portion.