WO2020228412A1

WO2020228412A1 - Modular universal air supply device for refrigerator, refrigerator, and method for manufacturing refrigerator

Info

Publication number: WO2020228412A1
Application number: PCT/CN2020/079990
Authority: WO
Inventors: 朱小兵; 费斌; 程学丽; 薛亚欣
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2019-05-10
Filing date: 2020-03-18
Publication date: 2020-11-19
Also published as: JP2022529441A; KR20220011615A; KR102593623B1; EP4047292A4; EP4047292A1; CN110057155B; CN110057155A; EP4047292B1

Abstract

Disclosed are a modular universal air supply device for a refrigerator, the refrigerator, and a method for manufacturing the refrigerator. The modular universal air supply device comprises: an air duct main body (20); two optional widening modules (30) arranged on two lateral sides of the air duct main body (20); and a first optional air duct covering plate (40) and/or a second optional air duct covering plate (50) each comprising a front cover part (41) and two connection parts (42) arranged on two lateral sides of the front cover part (41); the front cover parts (41) are arranged on a front side of the air duct main body (20), and each connection part (42) is configured to be mounted on a refrigerator body; and the second optional air duct covering plate (50) further comprises two widening cover parts (51), and each widening cover part (51) is connected to one lateral side of a front cover part (41) and is arranged on a front side of one optional widening module (30). The universality of the refrigerator body and air duct foam can be improved, the molding cost is reduced, waste in terms of administration caused by too many air ducts and refrigerator bodies is reduced, air ducts with different apparent widths can be installed in the same refrigerator body, and cross-platform air duct module universality and refrigerator body universality are achieved.

Description

Modular universal air blowing device for refrigerator, refrigerator and refrigerator manufacturing method

Technical field

The present invention relates to the technical field of refrigeration equipment, and in particular to a modular universal air blowing device for refrigerators, refrigerators and refrigerator manufacturing methods.

Background technique

With the development of social economy and the improvement of people's living standards, refrigerators have also become indispensable household appliances in people's daily lives. The existing refrigerator refrigerating compartments have diversified appearances and different width requirements for air ducts. Often when developing refrigerators, only the appearance of the air duct and the appearance of the interior need to be modified. However, because the air duct needs to transmit the wind to the air outlet, the air duct is widened, and the foam of the insulation layer inside needs to be widened. If the insulation layer is not widened, the cold air will directly pass through the plastic cover and cause condensation. Therefore, the inner tank that cooperates with it also needs to be widened and modified, which results in a new mold opening for the air duct, and a new mold for the corresponding box inner tank. This results in large investment in mold costs, and management waste caused by too many ducts and boxes, and it is easy to manage confusion.

Summary of the invention

In view of the above problems, the invention is proposed to provide a modular universal air blowing device for refrigerators, refrigerators and refrigerator manufacturing methods that overcome the above problems or at least partially solve the above problems, which can improve the universality of the box and the air duct foam Reduce mold cost investment, reduce management waste caused by too many air ducts and boxes, realize that air ducts with different appearance widths can be installed in the same box, achieving cross-platform air duct module universality and box universality .

To this end, on the one hand, the present invention proposes a modular universal air supply device for refrigerators, including:

The main body of the air duct has a front surface and a rear surface arranged oppositely, and two opposite vertical end surfaces, each of which is provided with at least one air outlet;

Two optional widening modules are arranged on both lateral sides of the air duct main body, each of the optional widening air duct modules has at least one connecting air duct, and each connecting air duct communicates with the corresponding One of said air supply openings on the vertical end face; and

The first optional air duct cover and/or the second optional air duct cover, the first optional air duct cover and the second optional air duct cover both include a front cover and are respectively arranged at Two connecting parts on both lateral sides of the front cover part; the front cover part is arranged on the front side of the air duct main body, and each of the connecting parts is configured to be installed in the cabinet of the refrigerator;

The second optional air duct cover plate further includes two widened cover portions, each of the widened cover portions is connected to a lateral side of the front cover portion, and is arranged on the one of the optional additional portions. The front side of the wide module; and each of the widened cover portions and the front cover portion are integrally formed, or each of the widened cover portions is installed on the front cover portion through a connecting structure.

Optionally, a thermal insulation material layer is provided between the air duct main body and the front cover part;

A thermal insulation material layer is arranged between the optional widening module and the corresponding widening cover part.

Optionally, each of the connecting parts includes a vertical side panel connected to the front cover part, and a plurality of first buckles connected to the rear side edge of the vertical side panel to communicate with the The multiple first slots on the box body are matched; and

At least one first vent hole is provided on each of the vertical side panels, and each of the first vent holes is corresponding to one of the air supply openings.

Optionally, both the first optional air duct cover and the second optional air duct cover further include:

The connecting plate connected to the upper edge of the front cover part, and the plurality of second buckles connected to the rear edge of the connecting plate to interact with the plurality of second grooves on the box body Cooperate.

Optionally, the second optional air duct cover plate further includes:

Two enclosures, each enclosure is provided on the rear surface of one of the widened cover portions, and defines a receiving cavity for accommodating the corresponding optional widening module with the connecting portion or the air duct main body ；

Each of the enclosures is provided with at least one second vent hole, and each of the second vent holes is corresponding to an outlet of one of the connecting air ducts of the corresponding optional widening module.

Optionally, the protrusions of the plurality of first buckles of each connecting portion are located outside the corresponding vertical side plates; each of the connecting portions is also provided with at least one third buckle, The protrusion of the third buckle is located on the inner side of the corresponding vertical side plate;

The protrusion of each second buckle is located on the upper side of the connecting plate, the connecting plate is also provided with at least one fourth buckle, and the protrusion of the fourth buckle is located on the connecting plate. Down side.

Optionally, the box body is an inner bladder; the thermal insulation material layer is PE cotton.

On the other hand, the present invention also provides a refrigerator including an inner liner and a modular universal air supply device; and the modular universal air supply device includes:

The air duct main body is arranged at the rear of the inner liner, and the air duct main body has a front surface and a rear surface arranged oppositely, and two opposite vertical end faces; each of the vertical end faces is arranged Have at least one air outlet; and

The first optional air duct cover, the first optional air duct cover includes a front cover part and two connecting parts respectively arranged on both lateral sides of the front cover part; the front cover part is arranged at the On the front side of the air duct main body, each of the connecting parts is installed on the inner liner.

In another aspect, the present invention also provides another refrigerator, which includes an inner liner and a modular universal air supply device; and the modular universal air supply device includes:

The air duct main body is arranged at the rear of the inner liner, and the air duct main body has a front surface and a rear surface arranged oppositely, and two opposite vertical end faces; each of the vertical end faces is arranged Have at least one air outlet;

A second optional air duct cover, the second optional air duct cover includes a front cover, two connecting parts respectively arranged on both lateral sides of the front cover, and two widened cover parts; The front cover portion is arranged on the front side of the air duct main body, each of the connecting portions is installed on the inner liner; each of the widened cover portions is connected to a lateral side of the front cover portion, and Is arranged on the front side of the one of the optional widening modules; and each of the widened cover portions and the front cover portion are integrally formed, or each of the widened cover portions is installed on the Front cover.

Optionally, the modular universal air supply device is any of the foregoing modular universal air supply devices.

In another aspect, the present invention also proposes a manufacturing method for manufacturing a refrigerator using any of the above-mentioned modular universal air blowing devices,

When manufacturing a refrigerator including an inner liner, an air duct main body and a first optional air duct cover, the manufacturing method includes:

Use the first mold to manufacture the inner container for the refrigerator;

Use the second mold to manufacture the main body of the air duct;

Manufacture the first optional air duct cover including the front cover part and the connecting part;

Assembling the inner tank, the air duct main body and the first optional air duct cover;

When manufacturing a refrigerator including an inner container, an air duct main body, two optional widening modules and a second optional air duct cover, the manufacturing method includes:

Using the first mold to manufacture the inner liner;

Manufacturing the air duct main body by using the second mold;

Use the third mold to manufacture optional widening modules;

Manufacture a first optional air duct cover including a front cover and a connecting part, and manufacture a widened cover, install the widened cover on the first optional air duct cover, and make a second optional air duct cover Select the air duct cover; or, manufacture the second optional air duct cover including the front cover, the connection part and the widened cover;

Assembling the inner tank, the air duct main body, the two optional widening modules, and the second optional air duct cover.

In the modular universal air supply device and refrigerator of the present invention, since it has an air duct main body, an optional widening module, a first optional air duct cover, and a second optional air duct cover, only external parts are added And the general left and right ventilation pipes (that is, widened modules), and the inner box and foam assembly can be used with the existing box, reducing the cost of molds caused by new parts. At the same time, the cabinets of all models can be planned in a unified manner to realize the common parts of cabinets of different platforms. That is, the present invention realizes the modular design and research of the air duct assembly, and reduces the mold cost and management cost.

Further, through the present invention, when the air duct is widened, the air duct foam and the air duct PE cotton are common, and the inner liner is also common. The left and right sides add air ducts to guide the wind to the place where it is needed. The cotton is matched with the ventilation pipe to prevent condensation on the air duct cover. The modules of the refrigerator air duct can be unified and standardized, refrigerators with different air supply widths can be universal, and it can be applied to all refrigerators with surrounding air.

Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will better understand the above and other objectives, advantages and features of the present invention.

Description of the drawings

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a modular universal air blowing device according to an embodiment of the present invention;

Figure 2 is a schematic structural diagram of a modular universal air supply device according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the internal air flow of the refrigerator shown in Fig. 3;

Figure 5 is a schematic cross-sectional view along the A-A plane in Figure 3;

Figure 6 is a schematic cross-sectional view along the B-B plane in Figure 3;

Figure 7 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the internal air flow of the refrigerator shown in Fig. 7;

Figure 9 is a schematic cross-sectional view taken along the C-C plane in Figure 7;

Figure 10 is a schematic cross-sectional view taken along the D-D plane in Figure 7;

FIG. 11 is a schematic enlarged view of a partial section in FIG. 10;

Fig. 12 is a schematic structural view of the inner container of the refrigerator shown in Figs. 3 and 7.

Detailed ways

Fig. 1 is a schematic structure diagram of a modular universal air supply device according to an embodiment of the present invention; Fig. 2 is a schematic structure diagram of a modular universal air supply device according to an embodiment of the present invention. As shown in Figures 1 and 2 and with reference to Figures 3 to 12, an embodiment of the present invention provides a modular universal air supply device for refrigerators. The modular universal air supply device may include an air duct main body 20, two optional widening modules 30, a first optional air channel cover plate 40 and/or a second optional air channel cover plate 50.

The air duct main body 20 may have a front surface and a rear surface opposite to each other, and two opposite vertical end surfaces, and at least one air outlet is provided on each vertical end surface. An air inlet 22 may be provided on the lower end surface of the air duct main body 20, and the air duct may have at least one communication groove 21/communication channel connecting the air inlet 22 and at least one air supply port. In other words, the air duct main body 20 is mainly used to guide the air flow, and is made of heat insulation material/heat preservation material.

Two optional widening modules 30 can be arranged on both lateral sides of the air duct main body 20, each optional widening air duct module has at least one connecting air duct, and each connecting air duct connects to one of the corresponding vertical end faces Outlet. The optional widening module 30 may also be referred to as a ventilation pipe, so as to widen the air duct main body 20 in the width direction of the air duct main body 20 (ie, in the lateral direction) to further transport the airflow. The optional widening module 30 is made of heat insulation material/heat preservation material.

The first optional air duct cover 40 and the second optional air duct cover 50 both include a front cover 41 and two connecting parts 42 respectively disposed on both lateral sides of the front cover 41; the front cover 41 is disposed at On the front side of the air duct main body 20, each connecting portion 42 is configured to be installed in a cabinet of the refrigerator, such as an inner container 90 installed in the cabinet. And the second optional air duct cover 50 also includes two widened cover parts 51, each of the widened cover parts 51 is connected to a lateral side of the front cover part 41, and is arranged in front of an optional widened module 30 Side; and each widened cover portion 51 is integrally formed with the front cover portion 41, or each widened cover portion 51 is installed on the front cover portion 41 or a connecting portion 42 through a connecting structure. When each widened cover 51 is installed on the front cover 41 or a connecting portion 42 through a connecting structure, it can also be understood that each widened cover 51 is installed on the first optional air duct cover 40 through a connecting structure. Corresponding side.

When the modular universal air supply device of the embodiment of the present invention is in use, when manufacturing a refrigerator including the inner container 90, the air duct main body 20 and the first optional air duct cover 40, the inner container 90 and the air duct main body 20 are selected. It is assembled with the first optional air duct cover 40 to form a refrigerator with a narrower air duct. When manufacturing a refrigerator including an inner container 90, an air duct main body 20, two optional widening modules 30 and a second optional air duct cover 50, the inner container 90, the air duct main body 20, and two optional additional The wide module 30 and the second optional air duct cover 50 are assembled to form a refrigerator with a wider air duct cover. When the wide and narrow air ducts of the refrigerator are transformed, the unified inner tank 90 and the air duct main body 20, and even the unified first optional air duct cover 40 can be used, thereby reducing molds, mold costs, and air ducts and boxes. Too much management waste caused by the realization of different widths of air ducts can be installed in the same box, to achieve cross-platform air duct module universal and box universal.

In some embodiments of the present invention, a thermal insulation material layer 60 is provided between the air duct main body 20 and the front cover 41; a thermal insulation material is provided between the optional widening module 30 and the corresponding widened cover 51 Layer 60. The thermal insulation material layer 60 is preferably PE cotton, and the thickness may be 2 mm to 4 mm, preferably 3 mm. The arrangement of the thermal insulation material layer 60 can prevent condensation on the front surface of the air duct cover. The second optional air duct cover 50 also includes two enclosures 52, each enclosure 52 is provided on the rear surface of a widened cover 51, and is defined with the connecting portion 42 or the air duct main body 20 to accommodate the corresponding optional The accommodating cavity of the module 30 is widened. Each enclosure 52 is provided with at least one second vent hole, and each second vent hole is provided corresponding to an outlet of the corresponding optional widening module 30 connected to the air duct.

In some embodiments of the present invention, each connecting portion 42 includes a vertical side plate connected to the front cover portion 41, and a plurality of first buckles 55 connected to the rear edge of the vertical side plate to interact with The multiple first slots 91 on the box are matched. Each vertical side panel is provided with at least one first vent hole, and each first vent hole is arranged corresponding to one air supply opening. Both the first optional air duct cover 40 and the second optional air duct cover 50 further include a connecting plate connected to the upper edge of the front cover 41, and a plurality of connecting plates connected to the rear edge of the connecting plate. The second buckle 56 is used to cooperate with a plurality of second grooves 92 on the box body.

The protrusions of the multiple first buckles 55 of each connecting portion 42 are located on the outer side of the corresponding vertical side plate; each connecting portion 42 is also provided with at least one third buckle 57, the protrusions of the third buckle 57 Located on the inner side of the corresponding vertical side panel. The protrusion of each second buckle 56 is located on the upper side of the connecting plate, at least one fourth buckle 58 is also provided on the connecting plate, and the protrusion of the fourth buckle 58 is located on the lower side of the connecting plate. The third buckle 57 and the fourth buckle 58 are preferably used to fix the air duct main body 20 and can also be used to fix the inner container 90. In some embodiments of the present invention, the buckle may also be called a hook, and the groove is called a hook fixing groove.

Fig. 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. As shown in Fig. 3 and referring to Figs. 4 to 6, the arrows in the figures indicate the flow direction of the airflow. The embodiment of the present invention also provides a refrigerator, including an inner container 90 and a modular universal air supply device; and the modular universal air supply device includes an air duct main body 20 and a first optional air duct cover 40. The air duct main body 20 is arranged at the rear of the inner tank 90, and the air duct main body 20 has a front surface and a rear surface arranged oppositely, and two opposite vertical end surfaces; each vertical end surface is provided with at least one The main function of the tuyere is to guide the wind to the area that needs cooling. The first optional air duct cover 40 includes a front cover 41 and two connecting parts 42 respectively arranged on both lateral sides of the front cover 41; the front cover 41 is arranged on the front side of the air duct main body 20, each connected The part 42 is installed in the inner tank 90. Preferably, the refrigerator adopts some components of the modular universal air blowing device in any of the above embodiments to form a refrigerator with a narrow air duct, and the width of the narrow air duct may be 400 mm. That is to say, the modular universal air supply device in this embodiment includes some or all of the corresponding components of the modular universal air supply device in any of the foregoing embodiments.

In some further embodiments of the present invention, when a refrigerator with a wider air duct is to be manufactured, on the basis of the refrigerator with a narrower air duct in this embodiment, two optional widening air duct modules are added, and Two widened cover parts 51 are sufficient; or, two optional widened air duct modules are added, and the first optional air duct cover 40 is replaced with a second optional air duct cover 50.

Fig. 7 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. As shown in Figure 7 and with reference to Figures 8 to 10, the arrows in the figures indicate the flow direction of the airflow. The embodiment of the present invention also provides a refrigerator, including an inner container 90 and a modular universal air supply device; and the modular universal air supply device includes an air duct main body 20, two optional widening modules 30 and a second optional air supply device.道盖板50。 Road cover 50.

The air duct main body 20 is arranged at the rear of the inner tank 90, and the air duct main body 20 has a front surface and a rear surface arranged oppositely, and two opposite vertical end surfaces; each vertical end surface is provided with at least one tuyere. Two optional widening modules 30 are arranged on both lateral sides of the air duct main body 20, each optional widening air duct module has at least one connecting air duct, and each connecting air duct is connected to a corresponding vertical end surface. The main function of the tuyere is to guide the wind to the area that needs cooling. The second optional air duct cover 50 includes a front cover 41, two connecting parts 42 respectively arranged on both lateral sides of the front cover 41, and two widened cover parts 51; the front cover 41 is arranged on the air duct On the front side of the main body 20, each connecting portion 42 is mounted on the inner tank 90; each widened cover portion 51 is connected to a lateral side of the front cover portion 41 and is arranged on the front side of an optional widening module 30; and Each widened cover portion 51 is integrally formed with the front cover portion 41, or each widened cover portion 51 is installed on the front cover portion 41 or a connecting portion 42 through a connecting structure. Preferably, the refrigerator adopts some parts of the modular universal air blowing device in any of the above embodiments to form a refrigerator with a wider air duct, and the width of the wide air duct may be 500 mm. That is to say, the modular universal air supply device in this embodiment includes some or all of the corresponding components of the modular universal air supply device in any of the foregoing embodiments.

In some further embodiments of the present invention, when a refrigerator with a narrower air duct is to be manufactured, on the basis of the refrigerator with a wider air duct of this embodiment, the two optional widening air duct modules are removed, and the Two widened cover parts 51 are sufficient; or, the two optional widened air duct modules are removed, and the second optional air duct cover 50 is replaced with the first optional air duct cover 40.

The embodiment of the present invention also provides a method for manufacturing a refrigerator. Specifically, when manufacturing the refrigerator including the inner container 90, the air duct main body 20 and the first optional air duct cover 40, the method of manufacturing the refrigerator includes: manufacturing the inner container 90 for the refrigerator using a first mold; The mold manufactures the air duct main body 20; manufactures the first optional air duct cover 40 including the front cover portion 41 and the connecting portion 42; and assembles the inner container 90, the air duct main body 20 and the first optional air duct cover 40.

When manufacturing a refrigerator including an inner container 90, an air duct main body 20, two optional widening modules 30 and a second optional air duct cover 50, the manufacturing method of the refrigerator includes: manufacturing the inner container 90 using a first mold; Use the second mold to manufacture the air duct main body 20; use the third mold to manufacture the optional widening module 30; manufacture the first optional air duct cover 40 including the front cover 41 and the connecting portion 42, and manufacture the widened cover 51 , The widened cover 51 is installed on the first optional air duct cover 40 to make a second optional air duct cover 50 or the second optional air duct cover 51 is manufactured including the front cover 41, the connecting part 42 and the widened cover 51 Two optional air duct cover plates 50; the inner tank 90, the air duct main body 20, two optional widening modules 30 and the second optional air duct cover plate 50 are assembled.

So far, those skilled in the art should realize that although a number of exemplary embodiments of the present invention have been illustrated and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or deduces many other variations or modifications that conform to the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims

A modular universal air supply device for refrigerators, including:

The main body of the air duct has a front surface and a rear surface arranged oppositely, and two opposite vertical end surfaces, each of which is provided with at least one air outlet;

Two optional widening modules are arranged on both lateral sides of the air duct main body, each of the optional widening air duct modules has at least one connecting air duct, and each connecting air duct communicates with the corresponding One of the air supply openings on the vertical end surface;

The first optional air duct cover and/or the second optional air duct cover, the first optional air duct cover and the second optional air duct cover both include a front cover and are respectively arranged at Two connecting parts on both lateral sides of the front cover part; the front cover part is arranged on the front side of the air duct main body, and each of the connecting parts is configured to be installed in the cabinet of the refrigerator;

The second optional air duct cover plate further includes two widened cover portions, each of the widened cover portions is connected to a lateral side of the front cover portion, and is arranged on the one of the optional additional portions. The front side of the wide module; and each of the widened cover portions and the front cover portion are integrally formed, or each of the widened cover portions is installed on the front cover portion or one of the connecting portions through a connecting structure.
The modular universal air blowing device according to claim 1, wherein:

A thermal insulation material layer is provided between the air duct main body and the front cover part;

A thermal insulation material layer is arranged between the optional widening module and the corresponding widening cover part.
The modular universal air blowing device according to claim 1, wherein:

Each of the connecting parts includes a vertical side panel connected to the front cover part, and a plurality of first buckles connected to the rear edge of the vertical side panel to connect with the A plurality of first card slots cooperate; and

At least one first vent hole is provided on each of the vertical side panels, and each of the first vent holes is corresponding to one of the air supply openings.
The modular universal air supply device according to claim 3, wherein the first optional air duct cover and the second optional air duct cover both further comprise:

The connecting plate connected to the upper edge of the front cover part, and the plurality of second buckles connected to the rear edge of the connecting plate to interact with the plurality of second grooves on the box body Cooperate.
The modular universal air supply device according to claim 1, wherein the second optional air duct cover plate further comprises:

Two enclosures, each enclosure is provided on the rear surface of one of the widened cover portions, and defines a receiving cavity for accommodating the corresponding optional widening module with the connecting portion or the air duct main body ；

Each of the enclosures is provided with at least one second vent hole, and each of the second vent holes is corresponding to an outlet of one of the connecting air ducts of the corresponding optional widening module.
The modular universal air blowing device according to claim 2, wherein:

The box body is an inner bladder; the thermal insulation material layer is PE cotton.
A refrigerator, including an inner liner and a modular universal air supply device; and the modular universal air supply device includes:

The air duct main body is arranged at the rear of the inner liner, and the air duct main body has a front surface and a rear surface arranged oppositely, and two opposite vertical end faces; each of the vertical end faces is arranged Have at least one air outlet; and

The first optional air duct cover, the first optional air duct cover includes a front cover part and two connecting parts respectively arranged on both lateral sides of the front cover part; the front cover part is arranged at the On the front side of the air duct main body, each of the connecting parts is installed on the inner liner.
A refrigerator, including an inner liner and a modular universal air supply device; and the modular universal air supply device includes:

The air duct main body is arranged at the rear of the inner liner, and the air duct main body has a front surface and a rear surface arranged oppositely, and two opposite vertical end faces; each of the vertical end faces is arranged Have at least one air outlet;

Two optional widening modules are arranged on both lateral sides of the air duct main body, each of the optional widening air duct modules has at least one connecting air duct, and each connecting air duct communicates with the corresponding One of said air supply openings on the vertical end face; and

A second optional air duct cover, the second optional air duct cover includes a front cover, two connecting parts respectively arranged on both lateral sides of the front cover, and two widened cover parts; The front cover portion is arranged on the front side of the air duct main body, each of the connecting portions is installed on the inner liner; each of the widened cover portions is connected to a lateral side of the front cover portion, and Is arranged on the front side of the one of the optional widening modules; and each of the widened cover portions and the front cover portion are integrally formed, or each of the widened cover portions is installed on the The front cover part or one of the connecting parts.
The refrigerator according to claim 7 or 8, wherein:

The modular universal air supply device is the modular universal air supply device according to any one of claims 1 to 6.
A method for manufacturing a refrigerator, wherein:

When manufacturing a refrigerator including an inner liner, an air duct main body and a first optional air duct cover, the manufacturing method includes:

Use the first mold to manufacture the inner container for the refrigerator;

Use the second mold to manufacture the main body of the air duct;

Manufacturing the first optional air duct cover including the front cover and the connecting part;

Assembling the inner tank, the air duct main body and the first optional air duct cover;

When manufacturing a refrigerator including an inner container, an air duct main body, two optional widening modules and a second optional air duct cover, the manufacturing method includes:

Using the first mold to manufacture the inner liner;

Manufacturing the air duct main body by using the second mold;

Use the third mold to manufacture optional widening modules;

Manufacture the first optional air duct cover including a front cover and a connecting part, and manufacture a widened cover, and install the widened cover on the first optional air duct cover to make a 2. Optional air duct cover; or, manufacture a second optional air duct cover including a front cover, a connecting part and a widened cover;

Assembling the inner liner, the air duct main body, the two optional widening modules and the second optional air duct cover.