WO2019153915A1

WO2019153915A1 - Refrigeration air supply assembly

Info

Publication number: WO2019153915A1
Application number: PCT/CN2018/123085
Authority: WO
Inventors: 赵发; 杨发林; 张欢; 毛宝龙
Original assignee: 青岛海尔股份有限公司
Priority date: 2018-02-09
Filing date: 2018-12-24
Publication date: 2019-08-15
Also published as: CN109696001A; EP3751221A1; EP3751221A4

Abstract

A refrigeration air supply assembly, applied to a refrigerator, the refrigerator comprising a freezing chamber (a') and a refrigerating chamber (3'), a freezing fan (3'), a fan support (2'), an evaporator (4'), a freezing air duct, a refrigeration liner (7'), and a foaming box (10'): the freezing air duct is in communication with the freezing chamber (a') and the refrigerating chamber (3'), and a refrigeration air supply ventilation door (5') is installed within the freezing air duct.

Description

Refrigerated air supply assembly

The present application claims priority to the patent application Serial No. 20110113, 474, the entire disclosure of which is incorporated herein by reference.

Technical field

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

Background technique

The prior art single-system open-door refrigerator freezer air supply damper is generally installed in the refrigerating compartment. In order to ensure the damper sealing and the refrigerating compartment air supply effect, a refrigerating air supply duct is arranged in the upper part of the refrigerating compartment, and the air duct is provided with The damper controls the amount of air supplied from the evaporator into the refrigerating compartment, thereby controlling the temperature of the refrigerating compartment.

1 is a cross-sectional view of a prior art open door refrigerator air duct. As shown in the figure, the freezing compartment a and the refrigerating compartment b of the door-opening refrigerator are arranged side by side, which further comprises: a freezing tank 1, a fan cover 2, a freezing fan 3, a fan bracket 4, an evaporator 5, a center beam The foam 6, the refrigerating damper 7, the refrigerating duct foam 8, the refrigerating duct cover 9, and the foaming box 10. The refrigerating damper 7 is disposed in the refrigerating compartment b.

2 is a cross-sectional view of the prior art split door refrigerator of FIG. 1. As shown in the figure, during the operation of the refrigerator, the evaporator 5 is cooled, and the freezing fan 3 is operated. The freezing fan 3 sends the cooled air to the freezing chamber a and the refrigerating chamber b through the fan cover 2 and the center beam foam 6, respectively. A refrigerating air duct is provided at the air inlet of the refrigerating compartment b, and the refrigerating air duct is composed of the refrigerating damper 7, the refrigerating duct foam 8, and the refrigerating duct cover 9. When the refrigerating compartment needs to be cooled, the refrigerating damper 7 is opened, and the cold air enters the refrigerating compartment through the refrigerating duct foam 8 and the refrigerating duct cover 9 to cool the refrigerating compartment; when the refrigerating compartment does not require cooling, the refrigerating damper 7 is closed. Cold air cannot enter the interior of the refrigerated compartment.

In the refrigerator duct of the prior art, since the temperature of the air entering the refrigerating chamber from the evaporator is relatively low (less than 10 degrees Celsius), in order to avoid condensation in the refrigerating compartment duct, the refrigerating air duct will be internally gathered. The styrene foam is insulated, resulting in a relatively large size of the refrigerated air supply duct, which reduces the effective volume of the refrigerator compartment by more than 10L, and cannot meet the user's requirement for the refrigerator compartment capacity.

FIG. 3 is a schematic view showing the air circulation in the prior art refrigeration process of FIG. 1. As shown in the figure, during the refrigeration and refrigeration process, the cold air passing through the evaporator passes through the freezing fan, a part of the wind is directly blown into the freezing chamber a, and another part of the wind passes through the refrigerating damper, then passes through the middle beam foam, and then passes through the refrigerating air duct. Enter the inside of the refrigerator compartment b. The air entering the freezing compartment a and the refrigerating compartment b cools the food, and then reaches the bottom of the evaporator through the refrigerating return air and the freezing return air, and sequentially circulates.

In the prior art, in the case that the refrigerating compartment b does not require refrigeration, and the refrigerating damper is closed, once the refrigerating air duct foam is not properly docked or the gasket is deformed, the cold air may leak into the refrigerating compartment b through the B air duct, resulting in The temperature in the refrigerator compartment is too low, causing the food in the refrigerator compartment b to freeze.

In summary, how to maximize the effective capacity of the refrigerating compartment and effectively avoid the leakage of cold air has become an urgent problem to be solved by the technicians in the field of structural design of the refrigerator.

Summary of the invention

In order to solve the above problems, the present invention provides a refrigerating air supply assembly capable of expanding the effective capacity of the refrigerating chamber and effectively avoiding cooling leakage.

In order to achieve the above object, an embodiment of the present invention provides a refrigerating and air supply assembly, which is applied to a refrigerator, which includes a freezing compartment and a refrigerating compartment, a freezing fan, a fan bracket, an evaporator, a freezing duct, a refrigerating tank, and a hair a bubble box, wherein: the freezing air passage is connected to the freezing chamber and the refrigerating chamber, and the refrigerating air duct is provided with a refrigerating air supply damper.

As a further improvement of an embodiment of the present invention, the refrigerator is an upper and lower door refrigerator or a side door refrigerator.

As a further improvement of an embodiment of the present invention, the fan bracket, the freezing fan, the freezing air duct, and the refrigerating air supply damper are pre-integrated into the refrigerating air supply assembly.

As a further improvement of an embodiment of the present invention, the refrigerating air supply assembly is further covered with a heat insulating member.

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

As a further improvement of an embodiment of the present invention, the heat insulating member has a thickness ranging from 15 mm to 25 mm.

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

As a further improvement of an embodiment of the present invention, the heat insulating member is another type of plastic.

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

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

DRAWINGS

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

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

3 is a schematic view showing the air circulation in the prior art refrigeration process of FIG. 1;

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

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

Figure 6 is a schematic view of air circulation during the refrigeration process of the embodiment of Figure 4.

Detailed ways

The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

It is to be understood that, in the description of the present invention, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", The orientation or positional relationship of "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the side of the door facing the user facing the refrigerator The invention has been described with reference to the preferred embodiments of the invention, and is not intended to be a Moreover, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present specification, the door open refrigerator is an example, but the present invention is not limited to the refrigerator in the room example, and can be applied to other types of refrigerators.

Please refer to FIG. 4, which is a cross-sectional view of the airway of the door refrigerator according to an embodiment of the present invention. As shown in the figure, the freezer compartment a' of the door-opening refrigerator and the refrigerating compartment b' are arranged side by side, which further comprises: a freezing tank 1', a fan bracket 2', a freezing fan 3', an evaporator 4', and a refrigerating The air supply damper 5', the damper heat insulating member 6', the refrigerating inner tank 7', the middle beam air blowing heat insulating member 8', the refrigerating air duct 9', and the foaming box body 10'.

In order to prevent the refrigerating air duct from occupying the effective volume of the refrigerating chamber, the present invention eliminates the refrigerating damper provided in the refrigerating chamber in the prior art, and instead, a refrigerating air supply damper is provided in the freezing chamber, and the refrigerating air supply damper is integrated in the evaporation. The upper part of the device can effectively increase the volume ratio of the refrigerating chamber. At the same time, in order to facilitate the refrigerating air supply damper sealing, a damper heat insulating member is also arranged at the refrigerating air supply damper position, and the chilled air supply is provided through the damper heat insulating member and the bracket claw. The damper is fixed to the fan bracket. When assembling the refrigerator, firstly, the fan bracket 2', the freezing fan 3', the refrigerating air supply damper 5', and the damper heat insulating member 6' are integrated and assembled in advance to form a refrigerating air supply assembly; The wind assembly is installed into the freezer compartment.

Further, since the refrigerating air supply damper is disposed in the freezing chamber, in order to prevent the refrigerating air supply damper from freezing, a cover plate is generally added to the refrigerating air supply damper, and a heating wire is attached to the cover plate.

Further, in order to prevent icing inside the air supply passage in the freezing chamber, the damper heat insulating member needs to have a certain heat insulating thickness. In one embodiment, the damper insulation is polystyrene foam and has a thickness in the range of 15 mm to 25 mm. Most preferably, the polystyrene foam has a thickness of about 20 mm.

Further, if other materials than polystyrene foam are used, for example, other types of plastics. If other materials are used, the thickness of the heat insulating member changes accordingly.

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

Further, the refrigerating air duct may extend only in the horizontal direction to the upper portion of the middle beam and be led out to the refrigerating chamber by fewer air outlets. More preferably, the refrigerating air duct includes a first section extending first in the horizontal direction to the upper section of the middle beam, and then a second section extending downward along the middle beam, and is led out to the refrigerating compartment by more air outlets, thereby improving Refrigeration efficiency of the refrigerator freezer.

Fig. 6 is a schematic view showing the air circulation in the refrigeration process according to an embodiment of the present invention. The present invention provides the refrigerating air supply damper in the interior of the freezing compartment a', and can effectively solve the problem of air leakage in the refrigerating air duct existing in the prior art. As shown in the figure, when the refrigerating compartment b' needs to be cooled, the refrigerating fan works, and the refrigerating damper opens. At this time, the cold air passes through the refrigerating air supply damper 5' → the damper insulation 6' → the middle beam air duct insulation 8' → refrigerated The air duct 9' enters the refrigerating chamber; when the refrigerating chamber b' does not require cooling, the refrigerating damper is closed, and the freezing chamber a' and the refrigerating air supply damper 5' can be completely cut off to prevent the refrigerating chamber b' from leaking air.

Further, as shown in FIG. 6, the refrigerating air duct first extends in a horizontal direction to the first section of the outer cover of the middle beam, and the second section of the outer section of the middle beam extends downwardly along the middle beam. The hot part is used to alleviate the condensation of the inner wall of the refrigerator compartment near the side of the freezer compartment.

Compared with the prior art, an embodiment of the present invention has a larger refrigerating compartment with a smaller capacity for the door opening refrigerator, and effectively avoids cold air leakage.

It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. It is included in the scope of protection of the present invention.

Claims

A refrigerating air supply assembly for use in a refrigerator, comprising: a freezing compartment and a refrigerating compartment, a freezing fan, a fan bracket, an evaporator, a freezing duct, a refrigerating tank, and a foaming box, wherein: the freezing The air duct communicates with the freezing compartment and the refrigerating compartment, and the refrigerating air duct is provided with a refrigerated air supply damper.
The refrigerating air supply assembly according to claim 1, wherein the refrigerator is an upper and lower door opening refrigerator or a side opening refrigerator.
The refrigerating air supply assembly according to claim 1, wherein the fan bracket, the refrigerating fan, the freezing air duct, and the refrigerating air supply damper are pre-integrated into the refrigerating air supply assembly.
The refrigerating air supply assembly according to claim 1, wherein the refrigerating air supply assembly is further covered with a heat insulating member.
The refrigerated air supply assembly according to claim 4, wherein said heat insulating member is a polystyrene foam.
The refrigerating air supply assembly according to claim 5, wherein the heat insulating member has a thickness ranging from 15 mm to 25 mm.
The refrigerating air supply assembly according to claim 6, wherein the heat insulating member has a thickness of 20 mm.
The refrigerated air supply assembly according to claim 1, wherein said heat insulating member is another type of plastic.
The refrigerating air supply assembly according to claim 8, wherein the plastic heat insulating member is provided with a heating wire or a vacuum heat insulating plate.