CN-114659331-B - Air guide duct assembly for refrigerator and refrigerator with same

CN114659331BCN 114659331 BCN114659331 BCN 114659331BCN-114659331-B

Abstract

The invention provides an induced air duct assembly for a refrigerator and the refrigerator with the induced air duct assembly, wherein the induced air duct assembly comprises a shell, a first air duct, a second air duct, a third air duct and a fourth air duct, wherein the shell is used for limiting an air inlet and an air outlet, and an air duct is connected between the air inlet and the air outlet; and the air door is obliquely arranged in the air duct and is configured to be controlled to be arranged in an openable and closable manner so as to open and close the air duct. By arranging the inclined air door in the shell of the induced air duct assembly and utilizing the inclined air door to open and close the air duct, the vertical space occupied by the air door can be reduced to a certain extent, and the vertical size of the shell is reduced, so that the volume of the induced air duct assembly is reduced under the condition that the inherent function of the induced air duct assembly is not influenced, and the refrigerator is enabled to maintain higher rated effective volume.

Inventors

FENG LEI
LI BO
ZHOU ZHAOTAO
REN SHUFEI
MAO BAOLONG
YI ZHIHUI

Assignees

青岛海尔电冰箱有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20220331

Claims (8)

1. An induced draft duct assembly for a refrigerator, comprising: A housing defining an air inlet and an air outlet, an air duct connected between the air inlet and the air outlet, and The air door is obliquely arranged in the air duct and is configured to be controlled to be arranged in an openable and closable manner so as to open and close the air duct; a mounting section is formed in the air duct, a positioning piece and an avoidance groove are arranged in the mounting section, and The positioning piece is configured to enable the air door to be obliquely arranged on the positioning piece at a preset angle relative to the cross section of the mounting section, and the avoidance groove is configured to provide a movable space required by the controlled opening process of the air door; The induced air duct assembly further includes: A door frame defining a vent and a frame body enclosing the vent, the door being pivotally mounted to the frame body to open or close the vent to open or close the air duct; the positioning piece comprises a downward protruding part protruding downwards from the top of the shell and a chute part recessed downwards from the bottom of the shell, wherein the downward protruding part is provided with a lower lurch inclined plane for the top of the door frame body to prop against so as to realize inclined arrangement, and the chute part is provided with a recessed inclined groove for at least one part of the bottom of the door frame body to be obliquely inserted into so as to realize inclined arrangement; the air outlet is positioned at the bottom of the shell, is positioned below the door frame body and the air door, and is communicated with the avoidance groove; The mounting section is internally provided with a converging part positioned below the door frame body and the air door, the converging part is communicated with the avoidance groove and is provided with a plurality of converging surfaces which downwards extend towards the avoidance groove, and the converging surfaces are configured to enable condensed water dropped on the converging surfaces to converge towards the avoidance groove so as to be discharged from the air outlet to the shell; the converging surface comprises a first converging surface, a second converging surface, a third converging surface and a fourth converging surface, wherein, The first converging surface is a vertical surface and is formed on the outer side wall of the concave inclined groove; The second converging surface is an inclined surface, the plane of the second converging surface is perpendicular to the plane of the air door in the closed state, and the second converging surface is in contact with the bottom of the door frame body; The third converging surface is an inclined surface and is connected with the tail ends of the first converging surface and the second converging surface, and the third converging surface is used for guiding condensed water led out of the first converging surface and the second converging surface to the bottom wall of the avoidance groove and flowing out of the shell through the air outlet; The top end of the fourth converging surface is connected to the bottom of the door frame body, the bottom end of the fourth converging surface is connected to the bottom wall of the avoidance groove, and the condensate water formed on the door frame body flows along the surface of the condensate water and is discharged to the avoidance groove.
2. The induced draft air duct assembly of claim 1 wherein, The locating piece is configured to enable an included angle of 15-60 degrees to be formed between the air door and the cross section of the installation section, so that the size of the shell is reduced, and the wind resistance of the air door is reduced.
3. The induced draft air duct assembly of claim 1 wherein, The door frame body extends obliquely from bottom to top towards the inner side of the air duct, so that the air door assembled on the door frame body is obliquely arranged in synchronization with the air door.
4. The induced draft air duct assembly of claim 3 wherein, The lower lurch inclined plane and the concave inclined slot have the same inclination degree and jointly define the inclination degree of the door frame body.
5. The induced draft air duct assembly of claim 3 wherein, The door frame body is provided with a shaft hole for inserting the pivot shaft of the air door into so as to realize rotatable matching, and the central axis of the pivot shaft is obliquely arranged at the preset angle and is parallel to the length direction of the door frame body; the damper is plate-shaped, is configured to be disposed at the preset angle with respect to the vertical surface when closing the air vent, and is rotated toward the inside of the air duct about the pivot shaft during opening of the air vent.
6. The induced draft air duct assembly of claim 3 wherein, The air inlet is positioned at the transverse end part of the shell.
7. The induced draft air duct assembly of claim 3 wherein, An electric heating component is arranged on the door frame body and the air door respectively, and the electric heating component is configured to be electrified in a controlled manner to generate heat so as to heat the door frame body and the air door.
8. A refrigerator, comprising: an induced draft duct assembly for a refrigerator according to any one of claims 1-7.

Description

Air guide duct assembly for refrigerator and refrigerator with same Technical Field The invention relates to refrigeration equipment, in particular to an induced air duct assembly for a refrigerator and the refrigerator with the same. Background In the field of refrigeration equipment, an induced draft duct assembly is used for guiding heat exchange airflow flowing through an evaporator to a specific storage compartment so as to adjust the temperature of the storage compartment. The rated effective volume of a refrigerator is one of the key indicators of great concern to consumers in purchasing. The factors influencing the rated effective volume of the refrigerator are numerous, and the volume of the induced air duct assembly is one of the factors. The inventor has appreciated that it is obviously desirable to reduce the volume of other components such as the induced draft duct assembly as much as possible in order to expand the effective volume of the refrigerator as much as possible. Therefore, how to reduce the volume of the induced air duct assembly without affecting the inherent functions of the induced air duct assembly is a technical problem to be solved by those skilled in the art. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention An object of the present invention is to overcome at least one technical defect in the prior art and provide an induced air duct assembly for a refrigerator and a refrigerator having the same. It is a further object of the present invention to reduce the volume of the induced draft duct assembly without affecting its inherent function, thereby maintaining a high rated effective volume of the refrigerator. It is a further object of the present invention to reduce or avoid windage while reducing the volume of the induced draft duct assembly. It is yet a further object of the present invention to reduce or avoid the inability of the damper of the induced draft duct assembly to open and close due to freezing. According to one aspect of the present invention, there is provided an induced air duct assembly for a refrigerator, including a housing defining an air inlet and an air outlet and a duct connected between the air inlet and the air outlet, and a damper, disposed obliquely in the duct and configured to be controllably opened and closed to open and close the duct. Optionally, a mounting section is formed in the air duct, a positioning member and a avoiding groove are arranged in the mounting section, the positioning member is configured to enable the air door to be obliquely arranged on the mounting section at a preset angle relative to the cross section of the mounting section, and the avoiding groove is configured to provide a movable space required by the controlled opening process of the air door. Optionally, the positioning element is configured to form an included angle of 15-60 ° between the damper and the cross section of the mounting section, so as to reduce the size of the housing and reduce the wind resistance of the damper. Optionally, the induced air duct assembly further comprises an air door frame, wherein the air door frame is used for limiting an air vent and a door frame body surrounding the air vent, the air door is pivotally assembled on the door frame body to open or close the air vent so as to open or close the air duct, the installation section is a horizontal air duct section in the air duct, and the door frame body extends obliquely from bottom to top towards the inner side of the air duct so that the air door assembled on the air door frame body and the air door are synchronously inclined. Optionally, the positioning piece comprises a downward protruding part protruding downwards from the top of the shell and a chute part recessed downwards from the bottom of the shell, wherein the downward protruding part is provided with a lower lurch inclined plane for the top of the door frame body to lean against, the chute part is provided with a recessed inclined groove for at least one part of the bottom of the door frame body to incline, and the inclined degrees of the lower lurch inclined plane and the recessed inclined groove are the same and jointly limit the inclined degree of the door frame body. Optionally, the door frame body is provided with a shaft hole for inserting a pivot shaft of the air door therein to realize rotatable fit, a central axis of the pivot shaft is inclined at a preset angle and parallel to the length direction of the door frame body, and the air door is plate-shaped, is configured to be arranged at a preset angle relative to the vertical plane when the air port is closed, and rotates towards the inner side of the air duct around the pivot shaft in the process of opening the air port. Optionally, the air inlet