Air duct component and refrigerator

Abstract

The air duct component comprises an air supply duct and a first air outlet duct, the first air outlet duct comprises a first air duct section, a second air duct section and a first air outlet, the first air duct section, the second air duct section and the first air outlet are sequentially arranged in the air flowing direction, and the first air duct section is connected with the air supply duct. The cross sectional area of the first air duct section is gradually increased in the gas flowing direction, and the cross sectional area of the second air duct section is gradually reduced in the gas flowing direction. The air duct component has the advantages that the vortex forming probability in the first air outlet duct is low, the air volume loss is small, and the air speed at the first air outlet is high.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, specifically to an air duct component and a refrigerator. Background Technology

[0002] Side-by-side refrigerators typically have an air inlet and multiple air outlets corresponding to each refrigerator compartment. Due to the large number of outlets and the varying airflow requirements of each compartment, the refrigerator airflow system usually includes at least two outlet ducts connected to the main airflow duct, with each outlet having at least one air outlet. However, this design, where each outlet duct handles the airflow from one main airflow duct, can lead to insufficient airflow in some outlet ducts, causing airflow separation and vortex formation, thus affecting the refrigerator's cooling performance. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a duct component that has the advantages of low probability of vortex formation in the first air outlet duct, small air volume loss, and high air velocity at the first air outlet.

[0005] The air duct component of this utility model embodiment includes an air supply duct and a first air outlet duct. The first air outlet duct includes a first duct section, a second duct section and a first air outlet arranged sequentially along the gas flow direction. The first duct section is connected to the air supply duct. The cross-sectional area of ​​the first duct section gradually increases along the gas flow direction, and the cross-sectional area of ​​the second duct section gradually decreases along the gas flow direction.

[0006] According to the air duct component of this embodiment, when the airflow in the supply air duct enters the first outlet air duct, it passes through the first air duct section and the second air duct section in sequence before being discharged from the first outlet. Specifically, by setting the cross-sectional area of ​​the first air duct section to gradually increase along the gas flow direction, the airflow velocity is reduced when passing through the first air duct section due to Bernoulli's principle, causing the airflow to diffuse laterally to the side of the first air duct section, effectively preventing airflow separation and thus effectively reducing the probability of vortex formation and airflow damage. Simultaneously, by setting the cross-sectional area of ​​the second air duct section to gradually decrease along the gas flow direction, the airflow is concentrated and its velocity is increased when passing through the second air duct section, thereby ensuring that the first outlet has a higher outlet velocity to ensure that the airflow effectively reaches a farther area, thus enabling the refrigerator with the air duct component of this embodiment to have a better refrigeration effect.

[0007] In some embodiments, the first air outlet duct further includes a third air duct section, which is located between the first air duct section and the air supply duct, and the cross-sectional area of ​​the third air duct section gradually decreases along the gas flow direction.

[0008] In some embodiments, the width d1 of the first air duct section gradually increases along the gas flow direction, and the width d2 of the second air duct section gradually decreases along the gas flow direction.

[0009] In some embodiments, the first duct segment includes a first wall and a second wall opposite to each other along its width direction, and the second duct segment includes a third wall and a fourth wall opposite to each other along its width direction, with an arc transition between the first wall and the third wall, and an arc transition between the second wall and the fourth wall.

[0010] In some embodiments, the radius of the arc at the junction of the first wall and the third wall is R1, and the radius of the arc at the junction of the second wall and the fourth wall is R2, wherein R1 < R2, 40mm ≤ R1 ≤ 60mm.

[0011] In some embodiments, the air duct component further includes a second air outlet duct, which is connected to the air supply duct. The wall of the second air outlet duct is provided with a second air outlet and a third air outlet, and the third air outlet is located downstream of the second air outlet along the airflow direction.

[0012] In some embodiments, the second air outlet duct has a fifth wall and a sixth wall opposite to each other along its width direction, both of which are curved surfaces.

[0013] In some embodiments, the air duct component includes an air duct plate, the air duct plate is provided with a guide groove, the guide groove defines a first air outlet duct, a second air outlet duct and the air supply duct, and at least a portion of the second air outlet and the third air outlet are provided on the bottom surface of the guide groove.

[0014] In some embodiments, the duct component includes a diversion rib that separates the first duct section and the second outlet duct, wherein the wall surface of the diversion rib located in the first outlet duct and the wall surface located in the second outlet duct have a circular arc transition.

[0015] The refrigerator according to an embodiment of the present invention includes the air duct component as described in any of the above embodiments.

[0016] The technical advantages of the refrigerator according to this utility model embodiment are the same as those of the air duct component in the above embodiment, and will not be repeated here. Attached Figure Description

[0017] Figure 1 This is an isometric view of the air duct component according to an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of a duct component according to an embodiment of the present utility model.

[0019] Figure label:

[0020] 1. Supply air duct; 2. First air outlet duct; 21. First air duct section; 211. First wall surface; 212. Second wall surface; 22. Second air duct section; 221. Third wall surface; 222. Fourth wall surface; 23. Third air duct section; 24. First air outlet; 3. Second air outlet duct; 31. Second air outlet; 32. Third air outlet; 33. Fifth wall surface; 34. Sixth wall surface; 4. Air duct plate; 41. Diverter rib. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following is combined Figure 1 and Figure 2 Describes the air duct component according to an embodiment of the present utility model.

[0023] The air duct component of this utility model embodiment includes an air supply duct 1 and a first air outlet duct 2. The first air outlet duct 2 includes a first air duct section 21, a second air duct section 22 and a first air outlet 24 arranged sequentially along the gas flow direction. The first air duct section 21 is connected to the air supply duct 1. The cross-sectional area of ​​the first air duct section 21 gradually increases along the gas flow direction, and the cross-sectional area of ​​the second air duct section 22 gradually decreases along the gas flow direction.

[0024] According to the air duct component of this embodiment, when the airflow in the supply air duct 1 enters the first outlet air duct 2, it passes through the first air duct section 21 and the second air duct section 22 in sequence before being discharged from the first outlet 24. Specifically, by setting the cross-sectional area of ​​the first air duct section 21 to gradually increase along the gas flow direction, the airflow velocity decreases when passing through the first air duct section 21 due to Bernoulli's principle, causing the airflow to diffuse laterally to the sides of the first air duct section 21, effectively preventing airflow separation and thus effectively reducing the probability of vortex formation and airflow damage. Simultaneously, by setting the cross-sectional area of ​​the second air duct section 22 to gradually decrease along the gas flow direction, the airflow is concentrated and its velocity increases when passing through the second air duct section 22, thereby ensuring that the first outlet 24 has a larger outlet velocity to ensure that the airflow effectively reaches a farther area, thus enabling the refrigerator with the air duct component of this embodiment to have a better refrigeration effect.

[0025] It should be noted that the air supply duct 1 and the first air outlet duct 2 formed by the air duct components are both cold air ducts, used to supply cold air to the refrigerator compartment to ensure the refrigeration effect of the refrigerator compartment.

[0026] In some embodiments, the first air outlet duct 2 further includes a third air duct section 23, which is located between the first air duct section 21 and the air supply duct 1, and the cross-sectional area of ​​the third air duct section 23 gradually decreases along the gas flow direction.

[0027] That is, the width d3 of the third air duct section 23 gradually decreases along the gas flow direction. As a result, when the airflow from the air supply duct 1 passes through the third air duct section 23, it can accelerate the airflow and increase the flow velocity based on the Venturi effect. This effectively avoids the airflow velocity from decreasing too much when it passes through the first air duct section 21, which would cause airflow separation and the formation of vortices. This effectively reduces air volume loss and makes the refrigerator more efficient.

[0028] For example, such as Figure 2 As described above, along the gas flow direction, the third air duct section 23, the first air duct section 21, and the second air duct section 22 are arranged in sequence.

[0029] In some embodiments, the width d1 of the first air duct section 21 gradually increases along the gas flow direction, and the width d2 of the second air duct section 22 gradually decreases along the gas flow direction.

[0030] Therefore, the cross-sectional area of ​​the two sections can be adjusted simply by adjusting the width of the first air duct section 21 and the second air duct section 22. The design of the first air duct section 21 and the second air duct section 22 is simple and the design cost is low.

[0031] For example, such as Figure 1 and Figure 2 As shown, the cross-sectional outer contour of each of the first air duct section 21 and the second air duct section 22 is rectangular. The height of the first air duct section 21 and the height of the second air duct section 22 are the same. The air duct component includes an air duct plate 4. Guide grooves of the same depth are machined on the air duct plate 4 at various positions. The guide grooves form the connected air supply duct 1 and the first air outlet duct 2.

[0032] In some embodiments, the first air duct section 21 includes a first wall surface 211 and a second wall surface 212 that are opposite each other in its width direction, and the second air duct section 22 includes a third wall surface 221 and a fourth wall surface 222 that are opposite each other in its width direction. The first wall surface 211 and the third wall surface 221 are connected by an arc, and the second wall surface 212 and the fourth wall surface 222 are connected by an arc.

[0033] Therefore, when the airflow in the first air duct section 21 enters the second air duct section 22, the arc surfaces at the junction of the first wall surface 211 and the third wall surface 221, and the arc surfaces at the junction of the second wall surface 212 and the fourth wall surface 222 have a good guiding effect on the airflow. The probability of the airflow forming a vortex at this point is low, and the air volume loss is small, which in turn makes the refrigerator's refrigeration effect better.

[0034] For example, such as Figure 1 and Figure 2As shown, the first wall surface 211 to the fourth wall surface 222 are all composed of curved surfaces, or at least one of them is composed of curved surfaces, while the remaining wall surfaces are composed of tangent curved surfaces and planes. In other words, no sharp protrusion appears at any position of any of the first wall surface 211 to the fourth wall surface.

[0035] In some embodiments, the radius of the arc at the junction of the first wall surface 211 and the third wall surface 221 is R1, and the radius of the arc at the junction of the second wall surface 212 and the fourth wall surface 222 is R2, wherein R1 < R2, 40mm ≤ R1 ≤ 60mm.

[0036] This design allows the extension directions of the first air duct section 21 and the second air duct section 22 to have a large angle, thereby integrating the first air outlet duct 2 onto the limited area of ​​the air duct plate 4, effectively reducing the volume and cost of the air duct components. Simultaneously, it ensures that airflow separation does not easily occur when passing through the arc surfaces of the aforementioned two dimensions, further reducing the probability of vortex formation.

[0037] For example, such as Figure 1 and Figure 2 As shown, the arc surfaces at the junction of the first wall surface 211 and the third wall surface 221, as well as the arc surfaces at the junction of the second wall surface 212 and the fourth wall surface 222, are concave in roughly the same direction. By using the different radii of the two arc surfaces, the cross-sectional area of ​​the air duct between them is ensured to gradually increase and then gradually decrease along the gas flow direction.

[0038] In some embodiments, the air duct component further includes a second air outlet duct 3, which is connected to the air supply duct 1. The wall of the second air outlet duct 3 is provided with a second air outlet 31 and a third air outlet 32, and the third air outlet 32 ​​is located downstream of the second air outlet 31 along the airflow direction.

[0039] This ensures that the airflow within the same air supply duct 1 can enter different refrigerator compartments through the first air outlet 24, the second air outlet 31, and the third air outlet 32, respectively, achieving independent cooling operation for each refrigerator compartment. Furthermore, the design of two air outlet ducts further simplifies the structure of the air duct components, making the design of the air duct less difficult and less costly.

[0040] For example, such as Figure 1 and Figure 2 As shown, the orientation of each of the second air outlet 31 and the third air outlet 32 ​​is orthogonal to the orientation of the first air outlet 24. Both the second air outlet 31 and the third air outlet 32 ​​are rectangular holes. The third air outlet 32 ​​is located at the end of the second air outlet duct 3, and the second air outlet 31 is located on the wall of the second air outlet duct 3. By adjusting the width of the third air outlet 32 ​​and the area of ​​the second air outlet 31, the air volume of each refrigerator compartment can be adjusted.

[0041] In some embodiments, the second air outlet duct 3 has a fifth wall surface 33 and a sixth wall surface 34 that are opposite each other along its width direction, and both the fifth wall surface 33 and the sixth wall surface 34 are curved surfaces.

[0042] As a result, the fifth wall surface 33 and the sixth wall surface 34 have a better guiding effect on the airflow entering the second air outlet duct 3, making it less likely for vortices to form in the second air outlet duct 3, and reducing the airflow loss during the change of airflow direction, resulting in higher cold air output efficiency of the duct components.

[0043] For example, the outer contour of the cross-section of the second air outlet duct 3 is rectangular, the height of the second air outlet duct 3 is the same at any position, the fifth wall 33 is composed of multiple sequentially tangent arc surfaces, and the sixth wall 34 is also composed of multiple sequentially tangent arc surfaces. The width between the fifth wall 33 and the sixth wall 34 gradually increases along the gas flow direction to reduce the flow velocity and facilitate the airflow to diffuse to the fifth wall 33 and the sixth wall 34, further reducing the probability of vortex formation in the second air outlet duct 3.

[0044] In some embodiments, the air duct component includes an air duct plate 4, on which a guide groove is provided. The guide groove defines a first air outlet duct 2, a second air outlet duct 3, and a supply air duct 1. At least a portion of the second air outlet 31 and the third air outlet 32 ​​are provided on the bottom surface of the guide groove.

[0045] This makes it easier to form the highly consistent first air outlet duct 2, second air outlet duct 3, and air supply duct 1, and reduces the manufacturing cost of the duct components.

[0046] For example, the duct component also includes a flat plate, which is connected to the duct plate 4 and covers the opening of the guide groove, thereby defining the first air outlet duct 2, the second air outlet duct 3 and the supply air duct 1 between the flat plate and the duct plate 4.

[0047] In some embodiments, the air duct component includes a diversion rib 41 that separates the first air duct section 21 and the second air outlet duct 3, wherein the wall surface of the diversion rib 41 located in the first air outlet duct 2 and the wall surface located in the second air outlet duct 3 are circularly transitioned.

[0048] Therefore, when the airflow from the supply air duct 1 enters the first outlet air duct 2 and the second outlet air duct 3 respectively under the separation of the diverting rib 41, the arc surface of the diverting rib 41 facing the supply air duct 1 has a better guiding effect on the airflow from the supply air duct 1 and less air volume loss.

[0049] For example, such as Figure 1 and Figure 2 As shown, the diversion rib 41 is generally conical, with a rounded end.

[0050] The refrigerator according to an embodiment of the present invention includes an air duct component as described in any of the above embodiments.

[0051] The technical advantages of the refrigerator according to this utility model embodiment are the same as those of the air duct component in the above embodiment, and will not be repeated here.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A duct component, characterized in that, It includes an air supply duct (1) and a first air outlet duct (2). The first air outlet duct (2) includes a first duct section (21), a second duct section (22) and a first air outlet (24) arranged sequentially along the gas flow direction. The first duct section (21) is connected to the air supply duct (1). The cross-sectional area of ​​the first duct section (21) gradually increases along the gas flow direction, and the cross-sectional area of ​​the second duct section (22) gradually decreases along the gas flow direction.

2. The air duct component according to claim 1, characterized in that, The first air outlet duct (2) also includes a third air duct section (23), which is located between the first air duct section (21) and the air supply duct (1). The cross-sectional area of ​​the third air duct section (23) gradually decreases along the gas flow direction.

3. The air duct component according to claim 1, characterized in that, The width d1 of the first air duct section (21) gradually increases along the gas flow direction, and the width d2 of the second air duct section (22) gradually decreases along the gas flow direction.

4. The air duct component according to claim 3, characterized in that, The first air duct section (21) includes a first wall surface (211) and a second wall surface (212) that are opposite each other along its width direction. The second air duct section (22) includes a third wall surface (221) and a fourth wall surface (222) that are opposite each other along its width direction. The first wall surface (211) and the third wall surface (221) are connected by an arc, and the second wall surface (212) and the fourth wall surface (222) are connected by an arc.

5. The air duct component according to claim 4, characterized in that, The radius of the arc at the junction of the first wall surface (211) and the third wall surface (221) is R1, and the radius of the arc at the junction of the second wall surface (212) and the fourth wall surface (222) is R2, wherein R1 < R2, 40mm ≤ R1 ≤ 60mm.

6. The air duct component according to any one of claims 1-5, characterized in that, The air duct component also includes a second air outlet duct (3), which is connected to the air supply duct (1). The wall of the second air outlet duct (3) is provided with a second air outlet (31) and a third air outlet (32), and the third air outlet (32) is located downstream of the second air outlet (31) along the airflow direction.

7. The air duct component according to claim 6, characterized in that, The second air outlet duct (3) has a fifth wall (33) and a sixth wall (34) opposite each other along its width direction, both of which are curved surfaces.

8. The air duct component according to claim 6, characterized in that, The air duct component includes an air duct plate (4), on which a guide groove is provided. The guide groove defines the first air outlet duct (2), the second air outlet duct (3), and the air supply duct (1). At least a portion of the second air outlet (31) and the third air outlet (32) are located on the bottom surface of the guide groove.

9. The air duct component according to claim 6, characterized in that, The air duct component includes a diversion rib (41) that separates the first air duct section (21) and the second air outlet duct (3), and the diversion rib (41) has a circular arc transition between the wall surface located in the first air outlet duct (2) and the wall surface located in the second air outlet duct (3).

10. A refrigerator, characterized in that, Includes the air duct component according to any one of claims 1-9.

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