Air-cooled refrigerator

Patent metadata

Field	Value
Publication number	US-12398949-B2
Application number	US-202118019861-A
Country	US
Kind code	B2
Filing date	Aug 17, 2021
Priority date	Aug 18, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

An air-cooled refrigerator comprises a bottom liner, a fan bottom shell, an air duct cover plate, and fan blades. A cooling chamber and a storage space are defined in the bottom liner. The fan bottom shell is arranged at a rear portion of the cooling chamber. The air duct cover plate comprises a back plate portion and a fan upper cover. The back plate portion is disposed in front of a rear wall of the bottom liner. The fan upper cover obliquely extends downward from a lower end of the back plate portion into the cooling chamber, covers the fan bottom shell and is fastened thereto. The back plate portion and the fan upper cover are integrally formed. The fan blades are arranged in a fan cavity, and enable formation of a refrigeration airflow discharged from the cooling chamber to an air supply duct.

First claim

What is claimed is:

1. An air-cooled refrigerator, comprising:
a bottom liner, defining a cooling chamber and a storage space, the cooling chamber being provided below the storage space;
a fan bottom shell, provided at a rear portion of the cooling chamber; and
an air duct cover plate, comprising:
a back plate portion, provided in front of a rear wall of the bottom liner, and defining an air supply duct together with the rear wall of the bottom liner, at least one air supply outlet being formed in the back plate portion, and the air supply outlet being configured to make the air supply duct communicate with the storage space; and
a fan upper cover, obliquely extending downwards from a lower end of the back plate portion into the cooling chamber, covering the fan bottom shell and being fastened thereto to form, together with the fan bottom shell, a fan cavity for accommodating fan blades, the back plate portion and the fan upper cover being integrally formed;
the air-cooled refrigerator further comprising:
the fan blades, provided inside the fan cavity, and enabling formation of a refrigeration air flow discharged from the cooling chamber to the air supply duct;
a longitudinal partition, vertically provided in a middle of the storage space to separate the storage space into two transversely-arranged storage cavities; and
a back fixing assembly, provided on the rear wall of the bottom liner, and having a supporting block protruding from the rear wall of the bottom liner towards the storage space to support the longitudinal partition by using the supporting block;
wherein the back fixing assembly comprises:
a supporting base, fixed to a rear side of a back portion of the bottom liner; and
a bearing frame, provided on a front side of the back portion of the bottom liner, and connected with the supporting base by means of a fastener, the bearing frame protruding towards the storage space to form the supporting block; and
wherein the back plate portion forms a supporting jacket protruding towards the storage space at a position corresponding to the bearing frame, the supporting block is inserted into the supporting jacket, and the supporting jacket is matched with a fixing structure provided at a rear end of the longitudinal partition, such that the longitudinal partition is supported by matching the supporting jacket with the fixing structure of the longitudinal partition.

2. The air-cooled refrigerator according to claim 1 , wherein
the fan blades are centrifugal blades, and
the fan cavity formed by the fan upper cover and the fan bottom shell has a volute shape, an air inlet being formed in the fan upper cover, and an exhaust outlet being formed at a position where the fan upper cover is connected with the back plate portion.

3. The air-cooled refrigerator according to claim 2 , further comprising:
an evaporator, having an overall flat cuboid shape and being arranged at a front portion of the cooling chamber;
a bottom wall of the bottom liner comprising:
an evaporator supporting part, configured to support the evaporator; and
a fan supporting part, obliquely provided upwards from front to back from a rear end of the evaporator supporting part, the fan bottom shell being fixed to the fan supporting part, such that the fan cavity is overall obliquely provided behind the evaporator.

4. The air-cooled refrigerator according to claim 3 , wherein
a bottom of the fan bottom shell is provided with a plurality of damping adhesive pads, and bonded to the fan supporting part by using the plurality of damping adhesive pads.

5. The air-cooled refrigerator according to claim 1 , wherein
one side of the back plate portion facing the air supply duct forms an air guiding jacket on a periphery of the bearing frame to avoid an air flow from forming a turbulent flow at the bearing frame.

6. The air-cooled refrigerator according to claim 5 , wherein
the air guiding jacket is provided extending along a height direction of the back plate portion, and forms a streamline tip at its bottom end to guide the air flow by using the tip.

7. The air-cooled refrigerator according to claim 1 , wherein
the air duct cover plate is an integrally injection-molded single-layer plate, and an upper portion of the back plate portion is provided with a crease groove to facilitate bending of the back plate portion by using the crease groove when installing the air duct cover plate.

8. The air-cooled refrigerator according to claim 1 , wherein
the back plate portion is also provided with at least one transversely extending water retaining rib below the air supply outlet to block condensate water at the air supply outlet from flowing downwards into the fan cavity.

Assignees

• Qingdao haier refrigerator co ltd
• Haier Smart Home Co Ltd

Inventors

• Ma Jian
• Wang Changzhi
• Fei Bin
• Toshinori Noda
• Dong Lingyun
• Chen Jianquan
• Liu Hui

Classifications

• F25D2317/068

  characterised by the fans · CPC title

• F25D17/062 Primary

  in household refrigerators · CPC title

• F25D2317/067

  characterised by air ducts · CPC title

• F25D2317/0683

  the fans not of the axial type · CPC title

• F25D2317/0665

  from the top · CPC title