Air duct assembly and refrigerator

Abstract

The utility model discloses an air duct assembly and a refrigerator, the air duct assembly comprises an inner container, the inner container is provided with a first surface, a variable temperature chamber air supply channel is formed on the first surface, the variable temperature chamber air supply channel comprises an air inlet section and an air outlet section, and at least one bending section is sequentially connected between the air inlet section and the air outlet section. Namely, the on-way resistance of the airflow from the air inlet section to the air outlet section is increased by arranging the bending section, and then the airflow blocking effect is achieved, so that cold air entering the variable-temperature chamber air supply channel after passing through leakage of the air door is difficult to enter the variable-temperature chamber, and the temperature control error of the variable-temperature chamber caused by untight closing of the variable-temperature chamber air door is eliminated as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to an air duct component and a refrigerator. Background Art

[0002] A refrigerator is a refrigeration device that keeps a constant low temperature. It is mainly used to keep food or other items at a constant low temperature. Conventional refrigerators generally include a refrigerator and a freezer. The room temperature of the refrigerator is generally set at 0℃-4℃, and the room temperature of the freezer is generally set below 0℃. With the development of existing technologies and in order to improve the competitiveness of products, existing refrigerators usually have a variable temperature chamber embedded in the refrigerator. The characteristic of the variable temperature chamber is that the room temperature of the variable temperature chamber can be adjusted to any temperature according to specific storage needs.

[0003] However, since the air inlet of the variable temperature room shares a fan with the air inlets of the refrigerator and freezer, and since the air inlet of the variable temperature room is directly connected to the variable temperature room, air leakage is likely to occur if the damper is not closed tightly, causing cold air entering other air ducts to enter the variable temperature room, resulting in errors in the temperature control of the variable temperature room. Utility Model Content

[0004] The main purpose of the embodiment of the utility model is to provide an air duct assembly, aiming to improve the technical problem in the prior art that the temperature control of the variable temperature chamber is prone to errors due to the loose closure of the variable temperature chamber air door.

[0005] An embodiment of the utility model proposes an air duct assembly, including an inner liner, the inner liner having a first surface, the first surface forming a variable temperature room air supply channel, the variable temperature room air supply channel including an air inlet section and an air outlet section, and at least one bending section is connected in sequence between the air inlet section and the air outlet section.

[0006] In some embodiments of the present invention, the air inlet end of the air inlet section is located at the near-ground end of the inner liner, and the air outlet end of the air inlet section is arranged close to the far-ground end of the inner liner.

[0007] In some embodiments of the present invention, the air inlet end of the air outlet section is arranged close to the distal end of the inner liner, and the air outlet end of the air outlet section is located at the proximal end of the inner liner.

[0008] In some embodiments of the utility model, the inner liner has a second surface opposite to the first surface, and the bottom surface of the air inlet section includes a first bottom surface portion and a second bottom surface portion, and the first bottom surface portion and the second bottom surface portion are connected in sequence along the direction from the air inlet end of the air inlet section toward the air outlet end of the air inlet section, and the distance between the second bottom surface portion and the second surface is greater than the distance between the first bottom surface portion and the second surface.

[0009] In some embodiments of the present invention, an inclined surface portion is provided between the first bottom surface portion and the second bottom surface portion, and the first bottom surface portion, the inclined surface portion and the second bottom surface portion are connected in sequence; or

[0010] A vertical surface portion is provided between the first bottom surface portion and the second bottom surface portion. The vertical surface portions are respectively perpendicular to the first bottom surface portion and the second bottom surface portion. The first bottom surface portion, the vertical surface portion and the second bottom surface portion are connected in sequence.

[0011] In some embodiments of the utility model, at least one of the bending sections of the variable temperature room air supply channel is a first bending section, the bottom surface of the first bending section includes a third bottom surface section and a fourth bottom surface section, and the third bottom surface section and the fourth bottom surface section are connected in sequence along the air inlet end of the first bending section toward the air outlet end of the first bending section, and the distance between the fourth bottom surface section and the second surface is greater than the distance between the third bottom surface section and the second surface.

[0012] In some embodiments of the present invention, at least one of the bending sections is an arc-shaped bending structure; and / or

[0013] At least one of the bending sections is a right-angle bending structure.

[0014] In some embodiments of the utility model, a refrigerated air supply channel is further formed on the first surface, and the refrigerated air supply channel and the temperature-changing room air supply channel are located on the same surface of the inner tank and are isolated from each other, and the air inlet end of the refrigerated air supply channel and the air inlet end of the temperature-changing room air supply channel are located at the same end of the inner tank.

[0015] In some embodiments of the utility model, the air duct assembly also includes an air duct cover plate, which is arranged on a side of the inner liner where the variable temperature air supply channel is provided, and cooperates with the inner liner to make the variable temperature air supply channel a closed cavity.

[0016] The utility model also provides a refrigerator, comprising the above-mentioned air duct assembly.

[0017] The embodiment of the utility model provides an air duct assembly and a refrigerator, the air duct assembly includes an inner liner, a first surface of the inner liner is formed with a variable temperature chamber air supply channel, the variable temperature chamber air supply channel includes an air inlet section and an air outlet section, and at least one bending section is sequentially connected between the air inlet end and the air outlet section. That is, by providing the bending section, the resistance along the air flow from the air inlet section to the air outlet section is increased, thereby playing a role in blocking the air flow, so that the cold air that leaks through the air door into the variable temperature chamber air supply channel is difficult to enter the variable temperature chamber, and the error in the temperature control of the variable temperature chamber caused by the loose closure of the variable temperature chamber air door is eliminated as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of an air duct assembly according to a first embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of an air duct assembly according to a second embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the air duct assembly of the second embodiment of the utility model (from another perspective);

[0022] Figure 4 This is a schematic structural diagram of an air duct assembly according to a third embodiment of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of an air duct assembly according to a fourth embodiment of the present utility model.

[0024] Figure numerals: 10, inner liner; 11, air duct cover; 20, variable temperature chamber air supply channel; 100, air inlet section; 200, bending section; 300, air outlet section; 101, first bottom portion; 102, inclined portion; 103, second bottom portion; 30, refrigerated air supply channel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] like Figure 1-Figure 5 As shown, the utility model provides an air duct assembly, including an inner liner 10, the inner liner 10 has a first surface, and a variable temperature room air supply channel 20 is formed on the first surface. The variable temperature room air supply channel 20 includes an air inlet section 100 and an air outlet section 300, and at least one bending section 200 is sequentially connected between the air inlet section 100 and the air outlet section 300.

[0030] It should be noted that the variable temperature chamber air supply channel 20 is a groove-shaped structure provided on the first surface of the inner liner 10, that is, the air inlet section 100, the air outlet section 300 and the bending section 200 are all corresponding groove-shaped structures for guiding the cold air. That is, the air inlet end of the air inlet section 100 is connected to the fan, and the air outlet end of the air outlet section 300 is connected to the variable temperature chamber of the refrigerator, and the cold air sequentially passes through the air inlet section 100, the bending section 200 sequentially connected between the air inlet section 100 and the air outlet section 300, and the air outlet section 300 into the variable temperature chamber.

[0031] It is understandable that the damper provided at the air inlet end of the air inlet section 100 is used to close the variable temperature room air supply channel 20, but since there is a sealing problem in the damper blocking the variable temperature room air supply channel 20, part of the cold air will leak into the variable temperature room air supply channel 20 when the fan supplies air to other air supply channels. To this end, the variable temperature room air supply channel 20 includes an air inlet section 100 and an air outlet section 300, and at least one bending section 200 is sequentially connected between the air inlet end and the air outlet section 300. That is, by providing the bending section 200, the resistance along the air flow from the air inlet section 100 to the air outlet section 300 is increased, thereby playing a role in blocking the air flow, so that the cold air that leaks into the variable temperature room air supply channel 20 through the damper is difficult to enter the variable temperature room, and the error in the temperature control of the variable temperature room caused by the loose closure of the damper of the variable temperature room is eliminated as much as possible.

[0032] In some embodiments, the variable temperature room air supply channel 20 has a bending section 200, and the air inlet section 100, the bending section 200 and the air outlet section 300 are connected in sequence.

[0033] In some embodiments, the variable temperature room air supply channel 20 has two bending sections 200, including a second bending section 200 and a third bending section 200. In the variable temperature room air supply channel 20, the air inlet section 100, the second bending section 200, the third bending section 200 and the air outlet section 300 are connected in sequence.

[0034] In some embodiments, the air inlet end of the air inlet section 100 is located at the near-ground end of the inner liner 10 , and the air outlet end of the air inlet section 100 is arranged close to the far-ground end of the inner liner 10 .

[0035] It should be noted that the inner container 10 is generally arranged vertically in the refrigerator, that is, the distal end of the inner container 10 is located above the proximal end of the inner container 10, and the outlet end of the air inlet section 100 is located above the air inlet end of the air inlet section 100. Since the air inlet end of the bending section 200 is connected to the outlet end of the air inlet section 100, the cold air that leaks into the variable temperature room air supply channel 20 needs to overcome gravity before reaching the bending section 200.

[0036] It can be understood that by setting the air outlet end of the air inlet section 100 above the air inlet end of the air inlet section 100, the cold air that leaks into the air inlet section 100 needs to overcome gravity to enter the bending section 200. At the same time, the bending section 200 is used to make the cold air that leaks into the variable temperature chamber air supply channel 20 need to overcome gravity and resistance along the way, thereby increasing the difficulty of cold air entering the variable temperature chamber, thereby eliminating as much as possible the error in temperature control of the variable temperature chamber caused by the loose closure of the variable temperature chamber damper.

[0037] In some embodiments, the variable temperature room air supply channel 20 has a bending section 200, that is, the air inlet section 100, the bending section 200 and the air outlet section 300 are connected in sequence. The air inlet end of the air inlet section 100 is located at the near-ground end of the inner liner 10, and the air outlet end of the air inlet section 100 is arranged near the far-ground end of the inner liner 10. The bending section 200 includes a first sub-bending section 200 and a second sub-bending section 200, the air inlet end of the first sub-bending section 200 is connected to the air outlet end of the air inlet section 100, the air outlet end of the first sub-bending section 200 is connected to the air inlet end of the second sub-bending section 200, and the air outlet end of the second sub-bending section 200 is connected to the air inlet end of the air outlet section 300. Among them, the air outlet end of the first sub-bending section 200 is located above the air inlet end of the first sub-bending section 200.

[0038] In some embodiments, the air inlet end of the air inlet section 100 is located at the near-ground end of the inner liner 10, and the air outlet end of the air inlet section 100 is arranged close to the far-ground end of the inner liner 10; the air inlet end of the air outlet section 300 is arranged close to the far-ground end of the inner liner 10, and the air outlet end of the air outlet section 300 is located at the near-ground end of the inner liner 10.

[0039] It can be understood that the air inlet section 100 is used to prevent the cold air that leaks into the variable temperature room air supply channel 20 from entering the variable temperature room, which requires the cold air to overcome gravity. When the damper of the variable temperature room air supply channel 20 is opened, the air outlet section 300 is set to allow the cold air to smoothly enter the variable temperature room by gravity, offsetting the effect of the air inlet section 100 on normal air intake.

[0040] In some embodiments, the inner liner has a second surface opposite to the first surface, and the bottom surface of the air inlet section 100 includes a first bottom surface portion 101 and a second bottom surface portion 103. Along the direction from the air inlet end of the air inlet section 100 toward the air outlet end of the air inlet section 100, the first bottom surface portion 101 and the second bottom surface portion 103 are connected in sequence, and the distance between the second bottom surface portion 103 and the second surface is greater than the distance between the first bottom surface portion 101 and the second surface.

[0041] It should be noted that since the air inlet section 100 is a slot-shaped structure, that is, the bottom surface of the air inlet section 100 is also the bottom surface of the slot-shaped structure. The first bottom surface 101 and the second bottom surface 103 are both planes, and the first bottom surface 101 and the second bottom surface 103 are sequentially connected to form the bottom surface of the slot-shaped structure.

[0042] At the same time, since the variable temperature room air supply channel 20 is formed on the first surface, and the distance between the second bottom portion 103 and the second surface is greater than the distance between the first bottom portion 101 and the second surface, taking the second surface as the reference plane, the second bottom portion 103 should be higher than the first bottom portion 101, so that the cold air that leaks into the air inlet section 100 is difficult to enter the bending section 200.

[0043] In some embodiments, an inclined portion 102 is disposed between the first bottom portion 101 and the second bottom portion 103 , and the first bottom portion 101 , the inclined portion 102 , and the second bottom portion 103 are sequentially connected.

[0044] It is understandable that the inclined surface 102 can guide the cold air from the first bottom surface 101 to the second bottom surface 103, and reduce the deceleration effect caused by the height difference bottom surface when the variable temperature room air supply channel 20 supplies air normally.

[0045] In some embodiments, a vertical surface is disposed between the first bottom surface 101 and the second bottom surface 103 , the vertical surface is perpendicular to the first bottom surface 101 and the second bottom surface 103 respectively, and the first bottom surface 101 , the vertical surface and the second bottom surface 103 are connected in sequence.

[0046] It can be understood that a vertical surface is provided between the first bottom surface portion 101 and the second bottom surface portion 103, and the vertical surface is vertically connected to the first bottom surface portion 101, thereby increasing the difficulty of cold air entering the second bottom surface portion 103, thereby further weakening the impact of cold air leaking into the air inlet section 100 on the variable temperature chamber.

[0047] In some embodiments, at least one bending section 200 of the variable temperature room air supply channel 20 is a first bending section 200, and the bottom surface of the first bending section 200 includes a third bottom surface section and a fourth bottom surface section. Along the air inlet end of the first bending section 200 toward the air outlet end of the first bending section 200, the third bottom surface section and the fourth bottom surface section are connected in sequence, and the distance between the fourth bottom surface section and the second surface is greater than the distance between the third bottom surface section and the second surface.

[0048] Referring to the arrangement of the first bottom surface portion 101 and the second bottom surface portion 103 of the air inlet section 100, it is also used to increase the difficulty of leaking cold air through the bending section 200, making it difficult for the cold air to enter the air outlet section 300, thereby preventing the leaking cold air from affecting the variable temperature room.

[0049] The third bottom surface portion and the fourth bottom surface portion may also be provided with corresponding structures with reference to the inclined surface portion 102 and the vertical surface portion between the first bottom surface portion 101 and the second bottom surface portion 103 in the above example.

[0050] In some embodiments, the air outlet section 300 may also be provided with a corresponding height difference bottom surface structure with reference to the bottom surface of the air inlet section 100 .

[0051] In some embodiments, the variable temperature room air supply channel 20 has a bending section 200, and the bending section 200 is an arc-shaped bending structure.

[0052] In some embodiments, the variable temperature room air supply channel 20 has a bending section 200, and the bending section 200 is a right-angle bending structure.

[0053] In some embodiments, the variable temperature room air supply channel 20 has two bending sections 200 , one bending section 200 is an arc-shaped bending structure, and the other bending section 200 is a right-angle bending section 200 .

[0054] In some embodiments, a refrigerated air supply duct 30 is also formed on the first surface of the inner liner 10. The refrigerated air supply duct 30 and the variable temperature air supply duct 20 are located on the same surface of the inner liner 10 and are isolated from each other. The air inlet end of the refrigerated air supply duct 30 and the air inlet end of the variable temperature air supply duct 20 are located at the same end of the inner liner 10.

[0055] In some embodiments, the air duct assembly further includes an air duct cover 11, which is disposed on one side of the inner liner 10 where the variable temperature air supply channel 20 is disposed, and cooperates with the inner liner 10 to make the variable temperature air supply channel 20 a closed cavity.

[0056] In some embodiments, the air duct cover 11 also covers the refrigerated air supply passage 30 , and cooperates with the inner liner 10 to make the refrigerated air supply passage 30 a closed cavity.

[0057] The utility model also provides a refrigerator, including the air duct assembly in the above-mentioned embodiment. Since the refrigerator includes the air duct assembly of a combination of some or all of the above-mentioned embodiments, it has at least some or all of the beneficial effects of all the above-mentioned embodiments, which will not be described one by one here.

[0058] The utility model also provides a refrigerator, including the air duct assembly in the above-mentioned embodiment. Since the refrigerator includes the air duct assembly of a combination of some or all of the above-mentioned embodiments, it has at least some or all of the beneficial effects of all the above-mentioned embodiments, which will not be described one by one here.

[0059] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the application concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air duct assembly, characterized in that: It includes an inner liner, the inner liner has a first surface, the first surface forms a variable temperature room air supply channel, the variable temperature room air supply channel includes an air inlet section and an air outlet section, and at least one bending section is sequentially connected between the air inlet section and the air outlet section.

2. The air duct assembly according to claim 1, characterized in that: The air inlet end of the air inlet section is located at the end near the ground of the inner liner, and the air outlet end of the air inlet section is arranged close to the end far from the ground of the inner liner.

3. The air duct assembly according to claim 2, characterized in that: The air inlet end of the air outlet section is arranged close to the far-ground end of the inner liner, and the air outlet end of the air outlet section is located at the near-ground end of the inner liner.

4. The air duct assembly according to claim 1, characterized in that: The inner liner has a second surface opposite to the first surface, and the bottom surface of the air inlet section includes a first bottom surface section and a second bottom surface section. The first bottom surface section and the second bottom surface section are connected in sequence along the direction from the air inlet end of the air inlet section toward the air outlet end of the air inlet section, and the distance between the second bottom surface section and the second surface is greater than the distance between the first bottom surface section and the second surface.

5. The air duct assembly according to claim 4, characterized in that: An inclined surface portion is provided between the first bottom surface portion and the second bottom surface portion, and the first bottom surface portion, the inclined surface portion and the second bottom surface portion are connected in sequence; or A vertical surface portion is provided between the first bottom surface portion and the second bottom surface portion. The vertical surface portions are respectively perpendicular to the first bottom surface portion and the second bottom surface portion. The first bottom surface portion, the vertical surface portion and the second bottom surface portion are connected in sequence.

6. The air duct assembly according to claim 4, characterized in that: At least one of the bending sections of the variable temperature room air supply channel is a first bending section, and the bottom surface of the first bending section includes a third bottom surface section and a fourth bottom surface section. Along the air inlet end of the first bending section toward the air outlet end of the first bending section, the third bottom surface section and the fourth bottom surface section are connected in sequence, and the distance between the fourth bottom surface section and the second surface is greater than the distance between the third bottom surface section and the second surface.

7. The air duct assembly according to claim 1, characterized in that: At least one of the bending sections is an arc-shaped bending structure; and / or At least one of the bending sections is a right-angle bending structure.

8. The air duct assembly according to claim 1, characterized in that: A refrigerated air supply channel is formed on the first surface, and an air inlet end of the refrigerated air supply channel and an air inlet end of the variable temperature room air supply channel are located at the same end of the inner container.

9. The air duct assembly according to any one of claims 1 to 8, characterized in that: The air duct assembly also includes an air duct cover plate, which is arranged on a side of the inner liner where the variable temperature room air supply channel is arranged, and cooperates with the inner liner to make the variable temperature room air supply channel a closed cavity.

10. A refrigerator, characterized in that: The invention comprises the air duct assembly as described in any one of claims 1 to 9.

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