Refrigerator having evaporator disposed at bottom of refrigerator body
Provided is a refrigerator having an evaporator disposed at the bottom of a refrigerator body. The refrigerator comprises: the refrigerator body having a bottom inner liner, the bottom inner liner defining a cooling compartment and a storage space, and the cooling compartment being disposed below the storage space; and the evaporator generally in the shape of a flat cuboid, arranged in the cooling component, and placed inclinedly along the depth direction of the refrigerator with respect to the horizontal direction, the direction of inclination being upward from front to back. By placing the evaporator inclinedly, the space utilization is improved, and an air path is further improved so that an airflow can flow more uniformly and smoothly throughout an air return process and the air circulation efficiency is improved.
1 . A refrigerator having an evaporator disposed at the bottom of a refrigerator body, comprising:
the refrigerator body, having a bottom inner liner, the bottom inner liner defining a cooling compartment and a storage space, and the cooling compartment being disposed below the storage space; and
the evaporator, arranged in the cooling compartment and placed inclinedly along the depth direction of the refrigerator with respect to the horizontal direction, with the direction of inclination being upward from front to back;
wherein a bottom wall of the bottom inner liner comprises:
a plane-shaped first inclination portion, disposed inclinedly downward from a front end of the bottom wall of the bottom inner liner from front to back;
a recessed portion, disposed at a rear side of the first inclination portion and configured to be inclined upward from a transverse middle to two sides along a transverse direction of the refrigerator to form a drain hole in the transverse middle, both side surfaces of the recessed portion along the transverse direction and both side surfaces of the recessed portion along the depth direction of the refrigerator being inclined-plane-shaped, and the drain hole being configured to drain water from the cooling compartment; and
a plane-shaped second inclination portion, disposed inclinedly upward from a rear end of the recessed portion from front to back and configured to support the evaporator, an inclination angle of the evaporator being consistent with that of the second inclination portion with respect to a horizontal plane, and a front end of the evaporator abutting against the first inclination portion so that water on the evaporator is gathered at the recessed portion, and a position of the drain hole along the front and rear direction of the refrigerator body being at a front portion of the evaporator;
wherein the recessed portion provided with the drain hole is formed in a connecting position of the first inclination portion and the second inclination portion, so that the drain hole is used to drain condensed water of the evaporator;
wherein the bottom wall of the bottom inner liner further comprises:
a plane-shaped third inclination portion, disposed inclinedly upward from a rear end of the second inclination portion from front to back and having an inclination angle greater than that of the second inclination portion;
wherein the refrigerator further comprises a refrigeration fan, disposed on the third inclination portion and configured to promote formation of a refrigeration airflow sent to the storage space via the evaporator;
wherein the refrigeration fan is a centrifugal fan which comprises a volute and an impeller disposed in the volute, the volute is fixed to the third inclination portion with a bottom face of the volute, opposite to a suction inlet of the volute, being parallel to the third inclination portion, and the suction inlet of the volute faces a front upper side to suck air undergone heat exchange through the evaporator by utilizing the impeller.
2 . The refrigerator according to claim 1 , wherein
an inclination angle of the evaporator with respect to the horizontal direction ranges from 7.0° to 8.0°.
3 . The refrigerator according to claim 2 , wherein
the evaporator is generally in the shape of a flat cuboid, and a proportion of a distance between a front side surface and a rear side surface of the evaporator to a distance between a top surface and a bottom surface of the evaporator ranges from 1.9 to 2.1.
4 . The evaporator according to claim 3 , wherein
the distance between the front side surface and the rear side surface of the evaporator ranges from 150 mm to 155 mm; and
the distance between the top surface and the bottom surface of the evaporator ranges from 73 mm to 78 mm.
5 . The refrigerator according to claim 1 , wherein
the refrigerator further comprises:
an air supply duct, disposed at a downstream of an air supply direction of the refrigeration fan and configured to convey the refrigeration airflow to the storage space.
6 . The refrigerator according to claim 5 , wherein
an exhaust outlet of the volute is located at a rear side, and the air supply duct is connected with the exhaust outlet, extends upward and is configured to upward guide the refrigeration airflow to the storage space.
7 . The refrigerator according to claim 6 , wherein the refrigerator body further comprises:
an evaporator upper cover, transversely disposed in the bottom inner liner and used to separate the cooling compartment from the storage space, the evaporator upper cover comprising:
a first upper cover portion, located at the top of the evaporator and basically horizontally disposed; and
a second upper cover portion, extending inclinedly upward from a rear end of the first upper cover portion and disposed in a manner of being parallel to the centrifugal fan and forming a set distance from the centrifugal fan; and
air sucked by the centrifugal fan enters the suction inlet through a gap between the centrifugal fan and the second upper cover portion.
8 . The refrigerator according to claim 7 , wherein
a space between the centrifugal fan and the second upper cover portion is smaller than or equal to 30 mm.
9 . The refrigerator according to claim 5 , wherein
an inclination angle of the third inclination portion with respect to the horizontal direction ranges from 36.0° to 37.0°.
10 . The refrigerator according to claim 5 , wherein
an inclination angle of the refrigeration fan is consistent with that of the third inclination portion with respect to the horizontal plane.
11 . The refrigerator according to claim 6 , wherein
the suction inlet of the refrigeration fan is located at a position higher than a top end of the evaporator.
12 . The refrigerator according to claim 1 , wherein
a height from the position of the evaporator abutted against the first inclination portion to the drain hole is smaller than or equal to 22 mm.