Refrigerator air duct assembly capable of efficiently guiding flow

Abstract

The utility model discloses a refrigerator air duct assembly capable of efficiently guiding flow, which relates to the technical field of refrigerators and comprises an air duct pipe fitting, an air inlet at the input end of the air duct pipe fitting is fixedly butted with an air inlet pipe through a first detachable mounting mechanism, and an air outlet at the output end of the air duct pipe fitting is fixedly butted with an air outlet pipe through a second detachable mounting mechanism; the air duct pipe fitting and the air inlet pipe are in fixed butt joint through the first detachable mounting mechanism, and the filter ring with the built-in dustproof filter screen is clamped between the air duct pipe fitting and the air inlet pipe, so that the filter ring and the dustproof filter screen on the inner side of the filter ring can be conveniently disassembled and assembled, disassembly and cleaning are convenient, and compared with a traditional fixed connection mode, use is convenient, and use is convenient. The air duct pipe fitting is arranged in the air outlet pipe, the air diffusion ring is clamped between the air duct pipe fitting and the air outlet pipe, the annular air diffusion assembly is hinged to the inner side of the air diffusion ring, and therefore cold air in the air duct pipe fitting can be evenly exhausted from the air outlet pipe, and in addition, the air outlet direction can be changed within a certain range by adjusting the direction of the annular air diffusion assembly.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a high-efficiency airflow guiding refrigerator duct assembly. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a consumer product that keeps food or other items at a constant low temperature. With the development of the national economy and the gradual improvement of people's living standards, the frequency of refrigerator use is also increasing. The refrigerator air duct is a key component in a frost-free refrigerator. It is responsible for guiding the cold air to circulate inside the refrigerator to ensure uniform temperature distribution and efficient cooling.

[0003] The existing utility model patent with application number 202320498586.3 discloses a refrigerator air duct, including an air duct body. The inner wall of the air duct body is provided with a printing layer, and the printing layer is made of metal. In this utility model, the proposed refrigerator air duct adopts a combination of aluminum sheet and injection molding IMD process. When directly injection molding, the surface is covered with aluminum sheet, which is more beautiful, realistic and metallic. The surface printing is easier to detect, and the printing scheme on the aluminum sheet surface is also more extensive.

[0004] Based on existing technology, most refrigerator air duct components have a fixed structure. The filter screen at the refrigerator air duct inlet is generally fixed in the air duct with bolts, which is inconvenient to disassemble and clean, and is not convenient to use. In addition, the air duct outlet structure is simple, making it difficult to adjust the air outlet direction and the airflow distribution is not uniform enough, which can easily affect the refrigerator's cooling effect. Therefore, this utility model proposes a high-efficiency airflow guiding refrigerator air duct component to solve the problems existing in the prior art. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to propose a high-efficiency airflow guiding refrigerator air duct assembly, which solves the problems of existing refrigerator air duct assemblies where the air inlet filter is generally fixed in the air duct with bolts, making disassembly and assembly inconvenient, and the air outlet structure is simple, making it difficult to adjust the air outlet direction and resulting in uneven airflow distribution.

[0006] To achieve the purpose of this utility model, the present utility model is implemented through the following technical solution: a high-efficiency airflow guiding refrigerator air duct assembly, including an air duct fitting, wherein the air inlet at the input end of the air duct fitting is fixedly connected to an air inlet pipe through a first detachable installation mechanism, and the air outlet at the output end of the air duct fitting is fixedly connected to an air outlet pipe through a second detachable installation mechanism. A filter ring is clamped between the inner side of the air duct fitting and the inner side of the air inlet pipe, and a dust filter screen is fixed inside the filter ring. A diffuser ring is clamped between the inner side of the air duct fitting and the inner side of the air outlet pipe, and an annular diffuser assembly is hinged to the inner side of the diffuser ring. The inner walls of the air duct fitting, the air inlet pipe, and the air outlet pipe are all coated with a Teflon coating.

[0007] A further improvement is that the first detachable installation mechanism includes a threaded collar slidably sleeved on the outer wall of the air inlet pipe and an external thread formed on the outer wall of the air inlet at the input end of the air duct fitting. The inner wall of the threaded collar near the air duct fitting has an internal thread adapted to the external thread. The inner wall of the threaded collar away from the air duct fitting has a limiting groove. The outer wall of the air inlet pipe is fixed with a limiting protrusion extending into the limiting groove.

[0008] A further improvement is that a first rubber sealing ring is fixed at one end of the air duct fitting near the air inlet pipe, and a first sealing groove adapted to the first rubber sealing ring is opened on the side of the air inlet pipe near the air duct fitting.

[0009] A further improvement is that: the inner wall of the air duct fitting near the air inlet pipe and the inner wall of the air inlet pipe near the air duct fitting are both fixed with first clamping rings, and the filter ring is clamped between the two sets of first clamping rings.

[0010] A further improvement is that the second detachable installation mechanism includes a first semi-circular threaded column symmetrically fixed to the outer wall of the air duct fitting near the air outlet pipe and a second semi-circular threaded column symmetrically fixed to the outer wall of the air outlet pipe near the air duct fitting, wherein the first semi-circular threaded column and the second semi-circular threaded column are threaded together with a nut cap.

[0011] A further improvement is that: a second sealing groove is provided on the side wall of the air duct fitting and the air outlet pipe on opposite sides, and a second rubber sealing ring is fitted between the two sets of second sealing grooves.

[0012] A further improvement is that: a second clamping ring is fixed on the inner wall of the air duct fitting near the air outlet pipe and the inner wall of the air outlet pipe near the air duct fitting, and the diffuser ring is clamped between the two sets of second clamping rings.

[0013] A further improvement is that the annular diffuser assembly includes a first diffuser hinged to the inner side of the diffuser ring and a second diffuser hinged to the inner side of the first diffuser, a third diffuser hinged to the inner side of the second diffuser, and a fourth diffuser hinged to the inner side of the third diffuser.

[0014] The beneficial effects of this utility model are as follows: This utility model includes a duct pipe fitting. The duct pipe fitting and the air inlet pipe are fixedly connected by a first detachable installation mechanism. A filter ring with a built-in dust filter is clamped between the duct pipe fitting and the air inlet pipe, so that the filter ring and its inner dust filter can be easily installed and removed, which is convenient for disassembly and cleaning. Compared with the traditional fixed connection method, it is more convenient to use. In addition, by clamping a diffuser ring between the duct pipe fitting and the air outlet pipe, and hinged an annular diffuser component inside the diffuser ring, the cold air in the duct pipe fitting can be evenly discharged from the air outlet pipe, which can evenly disperse the airflow to the required area and avoid excessive or insufficient local flow. Furthermore, by adjusting the position of the annular diffuser component, the air outlet direction can be changed within a certain range to meet the requirements of airflow characteristics in different application scenarios, making it highly practical. Attached Figure Description

[0015] Figure 1 This is a front view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the image;

[0018] Figure 4 This is the utility model Figure 2 Enlarged view of point B in the image;

[0019] Figure 5 This is a side view of the diffuser ring and annular diffuser assembly of this utility model.

[0020] The components include: 1. Ductwork fittings; 2. Inlet duct; 3. Outlet duct; 4. Filter ring; 5. Dustproof filter; 6. Diffuser ring; 7. Annular diffuser assembly; 8. Teflon coating; 9. Threaded collar; 10. External thread; 11. Limiting groove; 12. Limiting protrusion; 13. First rubber sealing ring; 14. First sealing groove; 15. First clamping ring; 16. First semi-circular threaded post; 17. Second semi-circular threaded post; 18. Nut cap; 19. Second sealing groove; 20. Second rubber sealing ring; 21. Second clamping ring; 701. First diffuser plate; 702. Second diffuser plate; 703. Third diffuser plate; 704. Fourth diffuser plate. Detailed Implementation

[0021] To deepen the understanding of this utility model, the following detailed description of the utility model will be provided in conjunction with the embodiments. These embodiments are only used to explain the utility model and do not constitute a limitation on the scope of protection of the utility model.

[0022] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment provides a high-efficiency airflow guiding refrigerator air duct assembly, including an air duct 1 for circulating cold air inside the refrigerator and an air inlet pipe 2 and an air outlet pipe 3 respectively installed at the left and right ends of the air duct 1. The air inlet pipe 2 is connected to the fan inside the refrigerator so that cold air inside the refrigerator is injected into the air duct 1 through the air inlet pipe 2. The air duct 1 can be selected as a curved pipe or a straight pipe according to actual usage requirements. The left side of the air duct 1 is the input air inlet, which is connected and fixed to the air inlet pipe 2 through a first detachable mounting mechanism. The right side of the air duct 1 is the output air outlet. The air duct 1 and the air inlet pipe 2 are connected by a second detachable installation mechanism. When the air duct 1 and the air inlet pipe 2 are connected, a filter ring 4 is clamped between them. The outer wall of the filter ring 4 is in contact with the inner wall of the air duct 1 and the inner wall of the air inlet pipe 2. A dust filter 5 for filtering and intercepting impurities in the air is fixed on the inner side of the filter ring 4. The air duct 1 and the air inlet pipe 2 are fixedly connected by the first detachable installation mechanism, and the filter ring 4 with the built-in dust filter 5 is clamped between the air duct 1 and the air inlet pipe 2, so that the filter ring 4 and its inner dust filter 5 can be easily installed and removed.

[0023] When the air duct fitting 1 and the air outlet duct 3 are connected, an annular diffuser ring 6 is clamped between them. The outer wall of the diffuser ring 6 is in contact with the inner wall of the air duct fitting 1 and the inner wall of the air outlet duct 3. An annular diffuser assembly 7 for uniformly dispersing cold air is hinged on the inner side of the diffuser ring 6. The hinged structure design of the annular diffuser assembly 7 allows it to adjust its orientation within a certain range. By clamping the diffuser ring 6 between the air duct fitting 1 and the air outlet duct 3 and hinged the annular diffuser assembly 7 on the inner side of the diffuser ring 6, the cold air in the air duct fitting 1 can be uniformly discharged from the air outlet duct 3. In addition, by adjusting the orientation of the annular diffuser assembly 7, the air outlet direction can be changed within a certain range. The inner walls of the air duct fitting 1, the air inlet duct 2 and the air outlet duct 3 are all coated with a Teflon (PTFE) coating 8. This coating can reduce the surface friction coefficient of the inner wall of the refrigerator air duct assembly, reduce airflow resistance, and achieve efficient cold air guidance.

[0024] The first detachable installation mechanism includes a threaded collar 9 and an external thread 10. The threaded collar 9 is slidably sleeved on the outer wall of the air inlet pipe 2. The external thread 10 is opened on the left outer wall of the air duct fitting 1 and is adapted to the internal thread of the inner wall of the threaded collar 9. A limiting groove 11 is opened on the inner wall of the side of the threaded collar 9 away from the air duct fitting 1. A limiting protrusion 12 is fixed on the outer wall of the air inlet pipe 2, and the limiting protrusion 12 extends into the limiting groove 11 to limit the threaded collar 9. First, the left end of the air duct fitting 1 is connected to the air inlet pipe 2, and then the threaded collar 9 is screwed onto the air duct fitting 1. The screwing is continued until the air inlet pipe 2 and the air duct fitting 1 are tightly connected, thus achieving the connection and fixation of the two.

[0025] The left end of the air duct fitting 1 is fixed with a first rubber sealing ring 13, which has a convex cross-section. The right end of the air inlet pipe 2 is provided with a first sealing groove 14, and the first sealing groove 14 is adapted to the first rubber sealing ring 13. When the air duct fitting 1 and the air inlet pipe 2 are connected, the first rubber sealing ring 13 is embedded in the first sealing groove 14 to achieve sealing when the air duct fitting 1 and the air inlet pipe 2 are connected.

[0026] The inner wall of the left side of the duct fitting 1 and the inner wall of the right side of the air inlet pipe 2 are both fixed with first clamping rings 15. When the duct fitting 1 and the air inlet pipe 2 are connected, the filter ring 4 is clamped between the two sets of first clamping rings 15, thus realizing the clamping of the filter ring 4 between the duct fitting 1 and the air inlet pipe 2.

[0027] The second detachable installation mechanism includes a first semi-circular threaded post 16 and a second semi-circular threaded post 17. The first semi-circular threaded post 16 has four sets and is symmetrically fixed to the outer right side of the air duct fitting 1. The second semi-circular threaded post 17 has four sets and is symmetrically fixed to the outer left side of the air outlet pipe 3. The first semi-circular threaded post 16 and the second semi-circular threaded post 17 are threaded together with a nut cap 18. First, the right end of the air duct fitting 1 is connected to the air outlet pipe 3, so that the first semi-circular threaded post 16 and the second semi-circular threaded post 17 are spliced ​​together into a complete threaded post. Then, the nut cap 18 is screwed onto the first semi-circular threaded post 16 and the second semi-circular threaded post 17, thus realizing the connection and fixation of the air duct fitting 1 and the air outlet pipe 3.

[0028] The right end of the duct fitting 1 and the left end of the air outlet pipe 3 are both provided with a second sealing groove 19. A second rubber sealing ring 20 is fitted between the two sets of second sealing grooves 19. When the duct fitting 1 and the air outlet pipe 3 are connected, the second rubber sealing ring 20 is embedded between the two sets of second sealing grooves 19 to achieve sealing when the duct fitting 1 and the air outlet pipe 3 are connected.

[0029] The inner wall of the right side of the duct fitting 1 and the inner wall of the left side of the air outlet pipe 3 are both fixed with second clamping rings 21. When the duct fitting 1 and the air outlet pipe 3 are connected, the diffuser ring 6 is clamped between the two sets of second clamping rings 21.

[0030] The annular diffuser assembly 7 includes a first diffuser 701, a second diffuser 702, a third diffuser 703, and a fourth diffuser 704. The first diffuser 701 is hinged to the inner side of the diffuser ring 6 and can be rotated and adjusted. The second diffuser 702 is hinged to the inner side of the first diffuser 701 and can be rotated and adjusted. The third diffuser 703 is hinged to the inner side of the second diffuser 702 and can be rotated and adjusted. The fourth diffuser 704 is hinged to the inner side of the third diffuser 703 and can be rotated and adjusted. By sequentially arranging the first diffuser 701, the second diffuser 702, the third diffuser 703, and the fourth diffuser 704, cold air can be evenly distributed.

[0031] In actual use, the high-efficiency airflow guiding refrigerator air duct assembly uses a fan inside the refrigerator to inject cold air into the air duct fitting 1 through the air inlet pipe 2, and then discharges it into the refrigerator through the air outlet pipe 3, realizing the circulation of cold air inside the refrigerator. During the circulation process, after the cold air enters the air inlet pipe 2, it is filtered and purified by the dust filter 5 inside the filter ring 4 before entering the air duct fitting 1. Then it is evenly discharged from the annular diffuser assembly 7 inside the diffuser ring 6. The hinged setting of the annular diffuser assembly 7 allows the discharge direction of the cold air to be changed within a certain range by adjusting the position of the annular diffuser assembly 7.

[0032] When the dust filter 5 needs to be disassembled and cleaned after long-term use, the connection between the air duct fitting 1 and the air inlet pipe 2 is released by the first detachable installation mechanism, and the air inlet pipe 2 and the air duct fitting 1 can be separated. After separation, the clamping of the filter ring 4 is released, and then the filter ring 4 is removed and the dust filter 5 inside is cleaned and maintained. During installation, the filter ring 4 is fitted into the inside of the air duct fitting 1, and then the air inlet pipe 2 is connected to the air duct fitting 1. Then, the first detachable installation mechanism is used to fix the connection between the air duct fitting 1 and the air inlet pipe 2, and the installation is completed. Similarly, the connection between the air duct fitting 1 and the air outlet pipe 3 is released by the second detachable installation mechanism, and the diffuser ring 6 can be easily removed from the air duct fitting 1 and the air outlet pipe 3.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high efficiency air guiding refrigerator duct assembly comprising a duct pipe (1), characterized in that: The air inlet at the input end of the air duct fitting (1) is fixedly connected to the air inlet pipe (2) through the first detachable installation mechanism. The air outlet at the output end of the air duct fitting (1) is fixedly connected to the air outlet pipe (3) through the second detachable installation mechanism. A filter ring (4) is clamped between the inner side of the air duct fitting (1) and the inner side of the air inlet pipe (2). A dust filter screen (5) is fixed inside the filter ring (4). A diffuser ring (6) is clamped between the inner side of the air duct fitting (1) and the inner side of the air outlet pipe (3). An annular diffuser assembly (7) is hinged inside the diffuser ring (6). The inner walls of the air duct fitting (1), the air inlet pipe (2), and the air outlet pipe (3) are all coated with Teflon coating (8).

2. The high efficiency flow-guiding refrigerator air duct assembly according to claim 1, characterized in that: The first detachable installation mechanism includes a threaded collar (9) that is slidably sleeved on the outer wall of the air inlet pipe (2) and an external thread (10) that is opened on the outer wall of the air inlet at the input end of the air duct fitting (1). The inner wall of the threaded collar (9) near the air duct fitting (1) is provided with an internal thread that is adapted to the external thread (10). The inner wall of the threaded collar (9) away from the air duct fitting (1) is provided with a limiting groove (11). The outer wall of the air inlet pipe (2) is fixed with a limiting protrusion (12) that extends into the limiting groove (11).

3. The high efficiency flow-guiding refrigerator air duct assembly according to claim 1, characterized in that: The air duct fitting (1) is fixed with a first rubber sealing ring (13) at one end near the air inlet pipe (2), and a first sealing groove (14) adapted to the first rubber sealing ring (13) is opened on the side of the air inlet pipe (2) near the air duct fitting (1).

4. The high efficiency flow-guiding refrigerator air duct assembly according to claim 1, characterized in that: The inner wall of the air duct fitting (1) near the air inlet pipe (2) and the inner wall of the air inlet pipe (2) near the air duct fitting (1) are both fixed with first clamping rings (15), and the filter ring (4) is clamped between the two sets of first clamping rings (15).

5. The high efficiency flow-guiding refrigerator air duct assembly according to claim 1, characterized in that: The second detachable installation mechanism includes a first semi-circular threaded column (16) symmetrically fixed to the outer wall of the air duct fitting (1) near the air outlet pipe (3) and a second semi-circular threaded column (17) symmetrically fixed to the outer wall of the air outlet pipe (3) near the air duct fitting (1). The first semi-circular threaded column (16) and the second semi-circular threaded column (17) are threaded together with a nut cap (18).

6. The high efficiency air guiding refrigerator duct assembly of claim 1, wherein: The air duct fitting (1) and the air outlet pipe (3) are provided with a second sealing groove (19) on the opposite side wall, and a second rubber sealing ring (20) is fitted between the two sets of second sealing grooves (19).

7. The high efficiency flow-guiding refrigerator duct assembly of claim 1, wherein: The inner wall of the air duct fitting (1) near the air outlet pipe (3) and the inner wall of the air outlet pipe (3) near the air duct fitting (1) are both fixed with a second clamping ring (21), and the diffuser ring (6) is clamped between the two sets of second clamping rings (21).

8. The high efficiency air guiding refrigerator duct assembly of claim 1, wherein: The annular diffuser assembly (7) includes a first diffuser plate (701) hinged to the inside of the diffuser ring (6) and a second diffuser plate (702) hinged to the inside of the first diffuser plate (701). A third diffuser plate (703) is hinged to the inside of the second diffuser plate (702), and a fourth diffuser plate (704) is hinged to the inside of the third diffuser plate (703).

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