Air door assembly and refrigerator

Abstract

The application discloses a damper assembly and a refrigerator. The damper assembly comprises a mounting seat having a mounting cavity, an air inlet and an air outlet, wherein the air inlet and the air outlet are communicated with the mounting cavity; and an adjusting core rotatably arranged in the mounting cavity, wherein the adjusting core has a plurality of air passing channels, the air passing channels pass through the adjusting core, the flow area of at least two air passing channels is different, and the adjusting core is rotated to connect the air passing channels with the air inlet and the air outlet to adjust the air volume of the damper assembly. The damper assembly of the application is provided with the adjusting core and at least two air passing channels with different flow areas on the adjusting core, so that the different air passing channels can be connected with the air inlet and the air outlet by rotating the adjusting core. Since the flow areas of the air passing channels are different, the air volume in the different air passing channels is also different, so that the different air volumes can be adjusted according to the different temperatures in the refrigerator, thereby reducing the temperature fluctuation in the refrigerator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a damper assembly and a refrigerator. BACKGROUND

[0002] In recent years, the air-cooled refrigerator has gradually expanded its share in the refrigerator market because it has the advantages of uniform internal temperature field and no frost over the direct-cooled refrigerator. In the refrigeration cycle of the air-cooled refrigerator, air exchanges heat with the evaporator and then enters the refrigerator chamber to lower the temperature. The temperature in the refrigerator chamber is determined by the input cooling capacity, and the opening and closing of the damper in the refrigerator air duct controls the input cooling capacity into the chamber. In the cooling state, the refrigerator damper is opened, and when the temperature in the chamber drops to the required temperature, the damper is closed.

[0003] Although such a damper opening and closing method can control the amount of air entering the refrigerator chamber, since the damper of this type only has two states of opening and closing, the temperature in the refrigerator chamber changes greatly during the time when the damper is closed, which leads to a large temperature fluctuation in the entire operation process of the refrigerator.

[0004] Therefore, how to solve the problem that the damper only has two states of opening and closing, leading to a large temperature fluctuation in the refrigerator chamber is an urgent problem to be solved in the field. SUMMARY

[0005] The present application discloses a damper assembly and a refrigerator, which solves the problem that the existing damper only has two states of opening and closing, leading to a large temperature fluctuation in the entire operation process of the refrigerator.

[0006] According to one aspect of the present application, a damper assembly is disclosed, comprising: a mounting seat having a mounting cavity, an air inlet and an air outlet, the air inlet and the air outlet both communicating with the mounting cavity; an adjusting core rotatably arranged in the mounting cavity, the adjusting core having a plurality of air passing channels, the air passing channels penetrating through the adjusting core, the flow areas of at least two of the air passing channels being different, and the adjusting core adjusting the ventilation volume of the damper assembly by rotating the air passing channels to communicate the air inlet and the air outlet.

[0007] Further, the air passing channels are arranged in the axial direction of the adjusting core.

[0008] Further, the number of the air passing channels is at least one, and the flow areas of each of the air passing channels are all different.

[0009] Further, the adjusting core has a sealing surface, which can completely close the air inlet and / or the air outlet.

[0010] Further, the air door assembly further comprises a driving device arranged in the mounting cavity, and the driving device is in driving connection with the adjusting core.

[0011] Further, the mounting seat is a heat-insulating foam.

[0012] The adjusting core is cylindrical, the shape of the mounting cavity matches the shape of the adjusting core, and the air passing channel extends along the radial direction of the adjusting core.

[0013] Further, the air door assembly further comprises a housing with a containing cavity, and the mounting seat is arranged in the containing cavity.

[0014] Further, the housing comprises an upper housing and a lower housing, the upper housing and the lower housing enclose the containing cavity, and the upper housing and the lower housing are detachably connected.

[0015] According to another aspect of the present application, a refrigerator is disclosed, which comprises the above air door assembly.

[0016] The air door assembly of the present application can control the air passing through different air passing channels by rotating the adjusting core, and the air volume in different air passing channels is different due to the different flow areas of the air passing channels, so that the air volume can be adjusted according to the different temperatures in the refrigerator, thereby reducing the temperature fluctuation in the refrigerator. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the air door assembly of the embodiment of the present application;

[0018] Figure 2 is an assembly view of the mounting seat and the adjusting core of the air door assembly of the embodiment of the present application;

[0019] Figure 3 is a sectional view of the mounting seat of the air door assembly of the embodiment of the present application;

[0020] Figure 4 is a structural schematic view of the adjusting core of the air door assembly of the embodiment of the present application;

[0021] Figure 5 is a structural schematic view of the housing of the air door assembly of the embodiment of the present application;

[0022] Legend: 10, mounting seat; 11, mounting cavity; 12, air inlet; 13, air outlet; 14, mounting port; 20, adjusting core; 21, air passing channel; 22, strip-shaped area; 30, driving device; 40, housing; 41, upper housing; 42, lower housing. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to embodiments, but is not limited to the contents of the specification.

[0024] like Figures 1 to 3 As shown, according to an embodiment of the present invention, a damper assembly is disclosed, including a mounting base 10 and an adjusting core 20, having a mounting cavity 11, an air inlet 12 and an air outlet 13, both of which are connected to the mounting cavity 11; the adjusting core 20 is rotatably disposed in the mounting cavity 11, and the adjusting core 20 has a plurality of air passages 21, which pass through the adjusting core 20, and at least two air passages 21 have different flow areas; the adjusting core 20 rotates to connect the air passages 21 to the air inlet 12 and the air outlet 13, thereby adjusting the ventilation volume of the damper assembly. The damper assembly of the present invention provides an adjusting core 20 and at least two air passages 21 with different flow areas on the adjusting core 20. By rotating the adjusting core 20, the air passages 21 can be connected to the air inlet 12 and the air outlet 13. Since the flow areas of the air passages 21 are different, the air volume in the different air passages 21 is also different. Therefore, the air volume can be adjusted according to the different temperatures inside the refrigerator, thereby reducing temperature fluctuations inside the refrigerator.

[0025] Furthermore, traditional flip-top dampers require a certain amount of space to open and close, while the damper assembly of this invention, by incorporating an adjusting core 20, allows for airflow regulation through rotation, significantly reducing the space occupied by the damper assembly. The damper assembly of this invention integrates different air intake modes onto a single component, achieving variable air intake modes without increasing the space occupied by the damper system.

[0026] like Figure 1 As shown, the damper assembly also includes a drive device 30, which is disposed within the mounting cavity 11 and is driven to the regulating core 20. By providing the drive device 30, the regulating core 20 can be rotated, thereby adjusting the ventilation volume.

[0027] In this embodiment, the mounting cavity 11 is also provided with a mounting port 14 communicating with the mounting cavity 11. The adjusting core 20 can be installed into the mounting cavity 11 through the mounting port 14, which is convenient for installation and maintenance. The driving device 30 can be a motor, which can be set inside the mounting cavity 11, thus saving installation space.

[0028] like Figure 4 As shown, in order to avoid mutual interference between the air passages 21, the air passages 21 are spaced apart along the axial direction of the adjusting core 20.

[0029] The number of the air passing channels 21 is at least three, and the flow area of each air passing channel 21 is different. By setting at least three air passing channels 21, and the flow area of each air passing channel 21 is different, the air door assembly can realize multiple air supply modes, thereby reducing the temperature fluctuation in the refrigerator.

[0030] In the embodiment, the air passing channels 21 are three, which are a first air passing channel, a second air passing channel and a third air passing channel. The flow area of the first air passing channel is the largest, the flow area of the second air passing channel is half of the first air passing channel, and the flow area of the third air passing channel is the smallest. Correspondingly, the air door assembly has three air inlet modes. The first mode is a rapid cooling mode. The adjusting core 20 is rotated to make the air inlet 12 and the air outlet 13 communicate through the first air passing channel. At this time, the largest amount of cold air enters the refrigerator, and rapid cooling can be realized. When the temperature in the refrigerator decreases to 5-8℃ from the set temperature, the adjusting core 20 is rotated, and the air door assembly enters the second air inlet mode, i.e. the slow cooling mode. At this time, the first air passing channel is rotated into the mounting seat 10 to be separated from the air inlet 12 and the air outlet 13, and the second air passing channel communicates the air inlet 12 and the air outlet 13. At this time, the amount of cold air entering the refrigerator also decreases, and the refrigeration compartment enters the slow cooling state. When the temperature in the refrigerator decreases to 1-3℃ from the set temperature, the adjusting core 20 is rotated, and the air door assembly enters the third air inlet mode, i.e. the constant temperature mode. At this time, the first air passing channel and the second air passing channel are both rotated into the mounting seat 10 to be separated from the air duct, and the third air passing channel communicates the air inlet 12 and the air outlet 13. Since the flow area of the third air passing channel is very small, the amount of cold air entering the refrigerator is also very small. However, in this state, the air door is not closed, and a small amount of cold air continuously enters the refrigeration compartment. This part of cold air is used to make the temperature of the refrigeration compartment decrease to the set temperature, and to supplement the lost cold air due to heat leakage. At this time, the state of the refrigeration compartment of the refrigerator corresponds to the state when the air door of the ordinary air-cooled refrigerator is closed. The temperature of the refrigeration compartment of the ordinary air-cooled refrigerator will rise in this period due to heat leakage. However, the temperature fluctuation of the refrigeration compartment in the third air inlet mode is much smaller than that of the ordinary air-cooled refrigerator.

[0031] In order to save energy, the adjusting core 20 has a sealing surface which can completely close the air inlet 12 and / or the air outlet 13, thereby reducing energy consumption.

[0032] The mounting seat 10 is made of thermal insulation foam. The mounting seat 10 can not only cooperate with the adjusting core 20 in structure, but also is light and easy to process. In addition, the mounting seat 10 can also play a role in heat preservation and prevent cold air leakage, which is a typical case of one thing serving multiple purposes.

[0033] Preferably, as Figure 4As shown, the adjusting core 20 is cylindrical, the shape of the mounting cavity 11 matches the shape of the adjusting core 20, and the air passage 21 penetrates the adjusting core 20 along the radial direction of the adjusting core 20.

[0034] In order to avoid the interference between the air passages 21, the adjusting core 20 has a plurality of strip-shaped areas 22, which are distributed along the circumferential direction of the outer wall of the adjusting core 20 and extend along the axial direction of the adjusting core 20, and the air inlets of all the air passages 21 are located in different strip-shaped areas 22. In this way, only one air passage 21 corresponds to the air inlet 12 and the air outlet 13 and communicates with them at a time when the adjusting core 20 is rotated, so that the leakage of cold air can be prevented.

[0035] As shown in the drawings, Figure 5 The damper assembly further includes a housing 40 having a containing cavity, and the mounting seat 10 is located in the containing cavity. The housing 40 includes an upper housing 41 and a lower housing 42, and the upper housing 41 and the lower housing 42 enclose the containing cavity and are detachably connected. The housing 40 can facilitate the assembly of the mounting seat 10 with other components in the refrigerator, and since the upper housing 41 and the lower housing 42 are detachably connected, the mounting and dismounting are more convenient.

[0036] According to another embodiment of the present application, a refrigerator is also disclosed, which includes the above-mentioned damper assembly.

[0037] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above-mentioned description, other different forms of changes or variations can be made by those skilled in the art. It is impossible to enumerate all the embodiments here. Any obvious changes or variations derived from the technical solutions of the present application still fall within the protection scope of the present application.

Claims

1. A damper assembly, characterized in that, include: The mounting base (10) has a mounting cavity (11), an air inlet (12) and an air outlet (13), wherein the air inlet (12) and the air outlet (13) are both connected to the mounting cavity (11); An adjusting core (20) is rotatably disposed in the mounting cavity (11). The adjusting core (20) has multiple air passages (21) that pass through the adjusting core (20). At least two of the air passages (21) have different flow areas. The adjusting core (20) rotates to connect the air passages (21) with the air inlet (12) and the air outlet (13) to adjust the ventilation volume of the damper assembly. The air passage (21) is arranged at intervals along the axial direction of the adjusting core (20); The regulating core (20) has a sealing surface that can completely seal the air inlet (12) and / or the air outlet (13); The adjusting core (20) is cylindrical, the shape of the mounting cavity (11) matches the shape of the adjusting core (20), and the air passage (21) extends radially along the adjusting core (20); The number of air passages (21) is at least 3, and the flow area of ​​each air passage (21) is different.

2. The damper assembly according to claim 1, characterized in that, The damper assembly also includes: A drive device (30) is disposed in the mounting cavity (11), and the drive device (30) is drivenly connected to the adjusting core (20).

3. The damper assembly according to claim 1, characterized in that, The mounting base (10) is made of thermal insulation foam.

4. The damper assembly according to claim 1, characterized in that, The damper assembly also includes: The housing (40) has a receiving cavity, and the mounting base (10) is located in the receiving cavity.

5. The damper assembly according to claim 4, characterized in that, The housing (40) includes an upper housing (41) and a lower housing (42), the upper housing (41) and the lower housing (42) forming the receiving cavity, and the upper housing (41) and the lower housing (42) are detachably connected.

6. A refrigerator, characterized in that, Includes the damper assembly according to any one of claims 1 to 5.

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