CN109696009B - Refrigeration air supply assembly and refrigerator - Google Patents

Abstract

The invention discloses a refrigerating air supply assembly and a refrigerator. The refrigerating air supply assembly further comprises: a refrigerating air supply air door, the refrigerating air supply air door is arranged in a position close to a freezing fan in a freezing chamber of the refrigerator; The two ends of the air duct are respectively connected to the freezer compartment of the refrigerator and the refrigerated compartment of the refrigerator; the air door insulator is covered on the outside of the refrigerated air supply air door, and extends to cover at least part of the refrigerated air supply air duct.

Description

Refrigeration air supply assembly and refrigerator

technical field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator, in particular to a refrigerator with a pre-assembled refrigerating air supply assembly.

Background technique

In the prior art, the air supply air door of the refrigerator compartment of the single-system side-by-side door refrigerator is generally installed inside the refrigerator compartment. The damper controls the air supply volume from the evaporator into the refrigerating room, so as to control the temperature of the refrigerating room.

FIG. 1 is a cross-sectional view of an air duct of a side-by-side refrigerator in the prior art. As shown in the figure, the freezing chamber a and the refrigerating chamber b of this side-by-side refrigerator are arranged side by side, which further includes: a freezing inner tank 1, a fan cover 2, a freezing fan 3, a fan bracket 4, an evaporator 5, a middle beam Foam 6 , refrigerated air door 7 , refrigerated air duct foam 8 , refrigerated air duct cover 9 , foam box 10 . Wherein, the refrigerating damper 7 is arranged in the refrigerating compartment b.

FIG. 2 is a cross-sectional view of the side-by-side refrigerator in the prior art of FIG. 1 . As shown in the figure, during the working process of the refrigerator, the evaporator 5 cools and the refrigerating fan 3 works, and the refrigerating fan 3 sends the refrigerated air through the fan cover 2 and the middle beam foam 6 into the freezer a and the freezer b respectively. A refrigerated air supply air duct is provided at the air supply inlet of the refrigerating chamber b, and the refrigerated air supply air duct is composed of a refrigerating air door 7 , a refrigerating air duct foam 8 , and a refrigerating air duct cover plate 9 . When the refrigerating room needs to be cooled, the refrigerating air door 7 is opened, and the cold air enters the refrigerating room through the refrigerating air duct foam 8 and the refrigerating air duct cover 9 to cool the refrigerating room; Cold air cannot enter the interior of the refrigerator.

In this type of refrigerator air duct in the prior art, since the temperature of the air entering the refrigerating room from the evaporator is relatively low (less than 10 degrees Celsius), in order to avoid condensation in the refrigerating room air duct, the refrigerated air supply air duct will be internally The styrene foam is used for heat insulation, which leads to the relatively large size of the refrigerated air supply air duct, which reduces the effective volume of the refrigerator refrigerating chamber by more than 10L, which cannot meet the user's requirements for the capacity of the refrigerator refrigerating chamber.

FIG. 3 is a schematic diagram of air circulation in the refrigeration process of the prior art of FIG. 1 . As shown in the figure, in the process of refrigeration and refrigeration, the cold air passing through the evaporator passes through the refrigerating fan, part of the air is directly blown into the freezer interior a, and the other part of the air passes through the refrigerating air door, then passes through the middle beam foam, and then is sent through the refrigerating air duct. into the refrigerator compartment b. After the air entering the freezer compartment a and the refrigerator compartment b refrigerates the food, it reaches the bottom of the evaporator through the refrigerating return air and the freezing return air, and circulates in sequence.

In the prior art, when the refrigerating room b does not need to be refrigerated and the refrigerating air door is closed, the cold air will leak into the refrigerating room b through the air duct B once the foam connection of the refrigerating air duct is not good or the gasket is deformed, resulting in The refrigerator room temperature is too low, causing the food in the refrigerator compartment b to freeze.

To sum up, how to maximize the effective capacity of the refrigerating chamber and effectively avoid the leakage of cold air has become an urgent problem to be solved by those skilled in the field of refrigerator structure design.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a refrigerating air supply assembly and a refrigerator, which can expand the effective capacity of the refrigerating chamber and effectively avoid cooling leakage.

In order to achieve the above object, an embodiment of the present invention provides a refrigerated air supply assembly, which is applied to a refrigerator, and the refrigerator includes a freezing chamber, a freezing fan, a fan support, an evaporator, a refrigerating chamber, and a foam box. The assembly further includes: a refrigerating air supply door, which is arranged in the freezing chamber at a position close to the freezing fan; a refrigerating air supply air duct, two ends of which are respectively connected to the freezing chamber and the refrigerating machine A chamber; a damper heat insulating member, covering the outside of the refrigerated air supply air door, and extending to cover at least part of the refrigerated air supply air duct.

As a further improvement of an embodiment of the present invention, the side-by-side refrigerator further includes bracket claws, and the refrigerated air supply air door is fixed on the fan bracket through the air door heat insulating member and the bracket claws.

As a further improvement of an embodiment of the present invention, the fan support, the refrigerating fan, the refrigerated air supply air door, and the air door insulator are pre-assembled into a refrigerated air supply assembly.

As a further improvement of an embodiment of the present invention, a cover plate is added on the refrigerated air supply air door, and a heating wire is installed on the cover plate.

As a further improvement of an embodiment of the present invention, the damper heat insulating member is polystyrene foam.

As a further improvement of an embodiment of the present invention, the thickness of the damper heat insulating member is in the range of 15 mm to 25 mm.

As a further improvement of an embodiment of the present invention, the thickness of the air door heat insulating member is 20 mm.

As a further improvement of an embodiment of the present invention, the damper heat insulating member is made of other types of plastics.

As a further improvement of an embodiment of the present invention, a heating wire or a vacuum insulation panel is provided on the plastic heat insulating member or the novel composite material heat insulating member.

The present invention also provides a refrigerator, which includes a freezing chamber, a freezing fan, a fan support, an evaporator, a refrigerating chamber, a foaming box, and the aforementioned refrigerating air supply assembly.

Compared with the prior art, the present invention can expand the effective capacity of the refrigerating chamber and effectively avoid cooling leakage.

Description of drawings

1 is a cross-sectional view of a refrigerator air duct in the prior art;

FIG. 2 is a cross-sectional view of the refrigerator of the prior art of FIG. 1;

Fig. 3 shows the schematic diagram of air circulation in the refrigeration process of the prior art of Fig. 1;

4 is a cross-sectional view of an air duct of a refrigerator according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the refrigerator of the embodiment of FIG. 4;

FIG. 6 is a schematic diagram showing the air circulation in the refrigeration process of the embodiment of FIG. 4 .

Detailed ways

The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", The orientation or positional relationship indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the user facing the door side of the refrigerator The viewing angles are determined for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed, and operate in a particular orientation. Furthermore, the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In this specification, a side-by-side refrigerator is used as an example, but the present invention is not limited to the refrigerator in this room example, and can also be applied to other types of refrigerators.

Please refer to FIG. 3 , which is a cross-sectional view of an air duct of a side-by-side refrigerator according to an embodiment of the present invention. As shown in the figure, the freezing chamber a' and the refrigerating chamber b' of this side-by-side refrigerator are arranged side by side, which further includes: a freezing inner tank 1', a fan support 2', a freezing fan 3', an evaporator 4', a refrigerating Air supply damper 5', damper insulation 6', refrigerated inner tank 7', middle beam air supply insulation 8', refrigerated air duct 9', foam box 10'.

In order to prevent the refrigerating air duct from occupying the effective volume of the refrigerating room, the present invention cancels the refrigerating air door set in the refrigerating room in the prior art, and instead, a refrigerating air supply air door is arranged in the freezing room, and the refrigerating air supply air door is integrated with the evaporation In this way, the volume ratio of the refrigerated room can be effectively increased. At the same time, in order to facilitate the sealing of the refrigerated air supply air door, the outside of the refrigerated air supply air door is also covered with a damper heat insulation piece, and the refrigerated air supply air door is covered by the air door heat insulation piece and the bracket claw. The damper is fixed on the fan bracket. When assembling the refrigerator, firstly, the fan support 2', the freezing fan 3', the refrigerating air supply air door 5', and the air door heat insulation member 6' are integrated and assembled together in advance to form the refrigeration air supply assembly; then, the refrigeration air supply assembly is directly The air assembly is installed into the freezer compartment.

Further, since the refrigerating blower damper is arranged in the freezing chamber, in order to prevent the refrigerating blower door from freezing, a cover plate is generally added to the refrigerating blower door, and a heating wire is installed on the cover plate.

Further, in order to prevent freezing inside the refrigerated air supply duct in the freezing chamber, the damper heat insulating member needs to extend to cover at least part of the refrigerated air supply duct, and has a certain thermal insulation thickness. In one embodiment, the damper insulation is polystyrene foam and has a thickness in the range of 15mm to 25mm. Optimally, the thickness of the polystyrene foam is around 20mm.

Further, if other materials than polystyrene foam are used, for example, other types of plastics. If other materials are used, the thickness of the insulation will vary accordingly.

Further, in order to prevent the refrigerating damper from freezing, generally, a heating wire or a vacuum insulation board is provided on the plastic heat insulating member.

Further, the refrigerated air duct may only extend to the upper section of the middle beam in the horizontal direction, and be led out to the refrigerating chamber through fewer air outlets. More preferably, the refrigerated air duct includes a first section that extends horizontally to the upper section of the middle beam, and then a second section that extends downward along the middle beam, and is led out to the refrigerating room through more air outlets, thereby improving the performance of the refrigerated air duct. The cooling efficiency of the refrigerator compartment.

6 is a schematic diagram of the air circulation in the refrigeration process according to an embodiment of the present invention. The present invention sets the refrigerated air supply air door inside the freezing chamber a', which can also effectively solve the air leakage problem of the refrigerated air duct existing in the prior art. As shown in the figure, when the refrigerating room b' needs to be cooled, the refrigerating fan works and the refrigerating air door is opened. At this time, the cold air passes through the refrigerating air supply air door 5'→the air door heat insulation piece 6'→the middle beam air duct heat insulation piece 8'→refrigeration The air duct 9' enters the refrigerating chamber; when the refrigerating chamber b' does not need to be cooled, the refrigerating air door is closed, which can completely cut off the freezing chamber a' and the refrigerating air supply air door 5' to avoid air leakage in the refrigerating chamber b'.

Further, as shown in Figure 6, the refrigerated air duct first extends horizontally to the first section of the upper section of the middle beam and covers the air door insulation, and the second section that extends downward along the middle beam covers the middle beam air duct partition. Heat parts, thereby alleviating the condensation phenomenon on the inner wall of the refrigerator compartment close to the freezer compartment.

Compared with the prior art, the side-by-side refrigerator according to an embodiment of the present invention has a larger refrigerating chamber and a smaller capacity, and effectively avoids cold air leakage.

It should be understood that although this specification is described in terms of embodiments, not every embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole, and each The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be Included in the protection scope of the present invention.

Claims (9)

1. A refrigerated air supply assembly, applied to a side-by-side refrigerator, the refrigerator includes a freezing chamber, a freezing fan, a fan support, an evaporator, a refrigerating chamber, and a foaming box, and the freezing chamber and the refrigerating chamber are side by side. The refrigerated air supply assembly includes the refrigerating fan, the fan support, the refrigerated air supply air door, the refrigerated air supply air duct and the air door heat insulation member, and some The refrigerated air supply air duct is located in the freezing chamber, the two ends of the refrigerated air supply air duct are respectively connected to the freezing chamber and the refrigerating chamber, and the refrigerated air supply air duct includes a horizontal direction extending to the upper section of the middle beam. The first section and the second section extending downward along the middle beam; the refrigerated air supply damper is arranged in the freezing chamber near the freezing fan; the damper insulation is covered with the refrigerated The outside of the air supply air door is extended to cover the outside of the first section of the refrigerated air supply air duct; the refrigerated air supply air door is fixed on the fan support through the air door insulator and the bracket claws When the refrigerating fan is working and the refrigerating air supply door is open, cold air enters the refrigerating chamber from the refrigerating air supply air door through the refrigerating air duct through the middle beam. 2 . The refrigerated air supply assembly according to claim 1 , wherein the fan support, the refrigerating fan, the refrigerated air supply air door, and the air door heat insulation member are pre-assembled to form the refrigerated air supply assembly. 3 . 3 . The refrigerated air supply assembly according to claim 1 , wherein a cover plate is added on the refrigerated air supply air door, and a heating wire is installed on the cover plate. 4 . 4 . The refrigerated air supply assembly according to claim 1 , wherein the damper heat insulating member is polystyrene foam. 5 . 5 . The refrigerated air supply assembly according to claim 4 , wherein the thickness of the damper heat insulating member is in the range of 15mm to 25mm. 6 . 6 . The refrigerated air supply assembly according to claim 5 , wherein the thickness of the air door heat insulating member is 20 mm. 7 . 7 . The refrigerated air supply assembly according to claim 1 , wherein the damper heat insulating member is other plastic than polystyrene foam. 8 . 8. The refrigerated air supply assembly according to claim 7, wherein a heating wire or a vacuum insulation panel is arranged on the air door heat insulating member. 9 . A refrigerator, comprising a freezing chamber, a freezing fan, a fan support, an evaporator, a refrigerating chamber, a foaming box, and the refrigerating air supply assembly according to any one of claims 1 to 8 .

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