An ultra-thin refrigerator refrigeration air duct structure

By designing rotating blades and a toothed drive belt to ensure consistent airflow within the duct, and by setting narrow ducts and baffles on the duct structure plate, the problem of uneven airflow distribution in the refrigeration duct of ultra-thin refrigerators is solved, thereby improving the uniformity of temperature inside the refrigerator compartment and the personalized refrigeration effect.

CN224302433UActive Publication Date: 2026-05-29TIANCHANG NUODA PLASTIC IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANCHANG NUODA PLASTIC IND CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing ultra-thin refrigerator refrigeration duct structure, the air volume distribution between ducts is difficult to balance, resulting in uneven temperature in the refrigerator compartment, which cannot meet the preservation needs of different areas, and lacks personalized refrigeration settings.

Method used

An ultra-thin refrigerator refrigeration air duct structure was designed, which includes a main component, an air duct component, an installation component, and an auxiliary circulation component. The air volume in each main air duct is kept consistent by rotating blades and a transmission toothed belt. Narrow air ducts and baffles are set on the air duct structure plate to stabilize the flow of cold air, thereby achieving balanced air volume and personalized refrigeration effect.

Benefits of technology

It improves the temperature uniformity and preservation effect inside the refrigerator compartment, meets the refrigeration needs of different areas, and improves the refrigerator's energy efficiency ratio and preservation effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224302433U_ABST
    Figure CN224302433U_ABST
Patent Text Reader

Abstract

The utility model relates to cold storage air duct technical field, and disclose a kind of ultra-thin refrigerator cold storage air duct structure, including main component and the air duct component being equipped with on main component, installation component is installed in the both sides of main component, auxiliary flow component is installed on main component, when using the air duct structure, cold air enters first main air duct, second main air duct and third main air duct by air supply port, and flowing cold air drives rotary blade to rotate along its main shaft when passing through rotary blade, and by the rotation gear of lower end and transmission tooth belt, so that the rotation rate of each rotation gear and the rotary blade of fixed sleeve on rotation gear always remains consistent, such design guarantees the air volume transmitted to each main air duct to keep consistent as far as possible, and three narrow air ducts opened in the rear side of air duct structure plate upper end pass through the structure design of its narrow and curved, so that cold air transmitted from each air duct can play better refrigeration effect to upper article in the process of passing through narrow air duct.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration air duct technology, and more specifically to an ultra-thin refrigerator refrigeration air duct structure. Background Technology

[0002] As consumers pursue a high-quality life, their demands for refrigerator functions are also increasing. In particular, the preservation function has become one of the important factors for users when choosing a refrigerator. Slim refrigerators are popular in the market because of their advantages such as saving space and beautiful appearance. However, this also puts higher demands on their internal air duct structure. The cold air duct structure of ultra-thin refrigerators can circulate cold air from the freezer to the refrigerator compartment, maintaining a certain temperature and humidity to ensure the long-term preservation of food. In addition, its reasonable air duct design can reduce energy consumption and improve the refrigerator's energy efficiency ratio, meeting the modern environmental protection and energy-saving needs.

[0003] Most existing ultra-thin refrigerators use a multi-duct design for their cooling ducts. During the transmission of cold air, due to various factors, the airflow distribution between the ducts is often difficult to achieve an ideal balance. This directly leads to temperature differences in different areas of the refrigerator compartment. Some areas may be too hot to meet the food preservation requirements, while others may be too cold, which can easily cause food to freeze.

[0004] Furthermore, the refrigeration structure of existing ultra-thin refrigerators is relatively simple. The entire refrigeration system lacks structural differentiation for different refrigeration effects, which makes it impossible for users to personalize the refrigeration settings according to the characteristics of the food, making it difficult to achieve the best preservation effect.

[0005] Therefore, in order to solve the above problems, this application provides an ultra-thin refrigerator refrigeration air duct structure. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an ultra-thin refrigerator refrigeration air duct structure to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: an ultra-thin refrigerator refrigeration air duct structure, including a main component and an air duct component provided on the main component, mounting components are installed on both sides of the main component, and auxiliary circulation components are installed on the main component;

[0008] Preferably, the main component includes a duct structure plate and thermal insulation foam, wherein the duct structure plate is filled with thermal insulation foam, and the thermal insulation foam filled in the duct structure plate plays an effective role in thermal insulation of the overall structure.

[0009] Preferably, the air duct assembly includes an air outlet, a first main air duct, a second main air duct, a third main air duct, a narrow air duct, and a partition. The air outlet is located on the front side of the upper end of the air duct structure plate. The first main air duct, the second main air duct, and the third main air duct are sequentially formed from left to right at the rear end of the air outlet on the air duct structure plate. Narrow air ducts are formed at the rear ends of the first, second, and third main air ducts on the air duct structure plate and are connected to them. The partitions are located at the corners of the narrow air ducts and are fixedly installed on the air duct structure plate. Partitions are provided at the connections between the first, second, and third main air ducts and their corresponding narrow air ducts. In this configuration, the three narrow air ducts located on the rear side of the upper end of the air duct structure plate, through their narrow and curved structural design, allow the cold air transmitted from each air duct to achieve a better refrigeration effect on the items above during the passage of the cold air. Simultaneously, the partitions installed at the corners of the narrow air ducts and at the connections between the narrow air ducts and their corresponding main air ducts ensure that the cold air maintains a stable and smooth flow during transmission.

[0010] Preferably, the mounting assembly includes a mounting plate and a first fixing screw. The mounting plate is disposed on both sides of the air duct structure plate and fixedly mounted on the side wall of the air duct structure plate. The mounting plate is provided with a first fixing screw at the front and rear oblique angles, and the threaded end of the first fixing screw passes through the mounting plate from below.

[0011] Preferably, the auxiliary flow assembly includes a rotating blade, a sealing rotating shaft, a rotating gear, a transmission toothed belt, a protective cover, a second fixing screw, and a square groove. The air duct structure plate has square grooves on the right side of the first, second, and third main air ducts. The rotating blade is disposed in each corresponding square groove, and its lower end is fixedly sleeved with the sealing rotating shaft and the rotating gear. The sealing rotating shaft is fixedly mounted on the main body assembly. The transmission toothed belt meshes and wraps around the three rotating gears. The protective cover is disposed below the air duct structure plate and covers the rotating gear and the transmission toothed belt. The second fixing screw is disposed on... The protective cover has four corners, and its threaded ends thread through the protective cover and the air duct structure plate from top to bottom. When the flowing cold air passes through the rotating blade, it drives the rotating blade to rotate along its own main axis, and at the same time drives the rotating gear fixedly sleeved at the lower end of the rotating blade. The three rotating gears set below the air duct structure plate keep the rotation speed of each rotating gear and the rotating blade fixedly sleeved on the rotating gear consistent through the transmission tooth belt wrapped around itself, so as to ensure that the air volume transmitted to the first main air duct, the second main air duct and the third main air duct is as consistent as possible. The air duct structure plate is made of aluminum alloy and has a hollow structure inside.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] When using this duct structure, cold air enters the first, second, and third main ducts through the air inlets. As the flowing cold air passes over the rotating blades, it drives the blades to rotate along their own main axis. The rotation speed of each rotating gear and the rotating blades fixedly fitted on the rotating gears is kept consistent through the rotating gears and transmission belt at the lower end. This design ensures that the air volume transmitted to each main duct is as consistent as possible. At the same time, the three narrow ducts opened on the upper rear side of the duct structure plate have a narrow and curved structure design, which allows the cold air transmitted from each duct to have a better refrigeration effect on the items above as it passes through the narrow ducts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model.

[0016] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] The attached figures are labeled as follows: 1. Main component; 101. Air duct structure plate; 102. Thermal insulation foam; 2. Air duct assembly; 201. Air outlet; 202. First main air duct; 203. Second main air duct; 204. Third main air duct; 205. Narrow air duct; 206. Partition; 3. Mounting assembly; 301. Mounting plate; 302. First fixing screw; 4. Auxiliary flow assembly; 401. Rotating blade; 402. Sealing rotating shaft; 403. Rotating gear; 404. Transmission toothed belt; 405. Protective cover; 406. Second fixing screw; 407. Square channel. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The ultra-thin refrigerator refrigeration air duct structure involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Reference Figure 1 and Figure 2 This utility model provides an ultra-thin refrigerator refrigeration air duct structure, including a main component 1 and an air duct component 2 provided on the main component 1, mounting components 3 are installed on both sides of the main component 1, and auxiliary circulation components 4 are installed on the main component 1.

[0020] The main component 1 includes a duct structure plate 101 and thermal insulation foam 102. The duct structure plate 101 is filled with thermal insulation foam 102, and the thermal insulation foam 102 filled in the duct structure plate 101 plays an effective role in thermal insulation of the overall structure.

[0021] Reference Figure 1 The air duct assembly 2 includes an air outlet 201, a first main air duct 202, a second main air duct 203, a third main air duct 204, a narrow air duct 205, and a partition 206. The air outlet 201 is located on the front side of the upper end of the air duct structure plate 101. From left to right, the first main air duct 202, the second main air duct 203, and the third main air duct 204 are sequentially formed on the air duct structure plate 101 at the rear end of the air outlet 201. Narrow air ducts 205 are formed on the air duct structure plate 101 at the rear ends of the first main air duct 202, the second main air duct 203, and the third main air duct 204 and are connected to them. The partition 206 is located at each corner of the narrow air duct 205. It is fixedly installed on the air duct structure plate 101. The first main air duct 202, the second main air duct 203 and the third main air duct 204 are provided with partitions 206 at the connection with the corresponding narrow air ducts 205. At this time, the three narrow air ducts 205 opened on the upper rear side of the air duct structure plate 101 have their own narrow and curved structural design so that the cold air transmitted from each air duct can have a better refrigeration effect on the items above during the process of passing through the narrow air ducts 205. At the same time, the partitions 206 installed at each corner of the narrow air duct 205 and at the connection between the narrow air duct 205 and the corresponding main air duct can ensure that the cold air maintains a stable and smooth flow during the transmission process.

[0022] Reference Figure 2 The mounting component 3 includes a mounting plate 301 and a first fixing screw 302. The mounting plate 301 is disposed on both sides of the air duct structure plate 101 and fixedly installed on the side wall of the air duct structure plate 101. The mounting plate 301 is provided with the first fixing screw 302 at the front and rear angles. The threaded end of the first fixing screw 302 passes through the mounting plate 301 from the bottom.

[0023] Reference Figure 2 and Figure 3The auxiliary flow assembly includes a rotating blade 401, a sealing rotating shaft 402, a rotating gear 403, a transmission toothed belt 404, a protective cover 405, a second fixing screw 406, and a square groove 407. The air duct structure plate 101 has square grooves 407 on the right side of the first main air duct 202, the second main air duct 203, and the third main air duct 204. The rotating blade 401 is disposed within each corresponding square groove 407, and its lower end is fixedly sleeved with the sealing rotating shaft 402 and the rotating gear 403. The sealing rotating shaft 402 is fixedly mounted on the main body assembly 1. The transmission toothed belt 404 is engaged and wound between the three rotating gears 403. The protective cover 405 is disposed below the air duct structure plate 101 and wraps around the rotating gears 403 and the transmission toothed belt. 404. The second fixing screw 406 is set at the four corners of the protective cover 405, and its threaded end passes through the protective cover 405 and the air duct structure plate 101 from top to bottom. At this time, when the flowing cold air passes through the rotating blade 401, it drives the rotating blade 401 to rotate along its own main shaft, and at the same time drives the rotating gear 403 fixedly sleeved on the lower end of the rotating blade 401. The three rotating gears 403 set below the air duct structure plate 101 are connected by the transmission toothed belt 404 wrapped around themselves so that the rotation speed of each rotating gear 403 and the rotating blade 401 fixedly sleeved on the rotating gear 403 is always consistent, so as to ensure that the air volume transmitted to the first main air duct 202, the second main air duct 203 and the third main air duct 204 is as consistent as possible.

[0024] The working principle of this utility model is as follows: When using this air duct, the insulating foam 102 filled in the air duct structure plate 101 effectively insulates the overall structure. Simultaneously, cold air enters the first main air duct 202, the second main air duct 203, and the third main air duct 204 through the air outlet 201. The flowing cold air, upon passing the rotating blade 401, drives the blade 401 to rotate along its own main axis, simultaneously driving the rotating gear 403 fixedly sleeved at the lower end of the blade 401. The three rotating gears 403 located below the air duct structure plate 101, through the transmission belt 404 wound around them, ensure that the rotation speed of each rotating gear 403 and the rotating blade 401 fixedly sleeved on the rotating gear 403 remains consistent, guaranteeing that the air is transmitted to the first main air duct 202, the second main air duct 203, and the third main air duct 204. The airflow in the third main air duct 204 is kept as consistent as possible. During rotation, the sealed rotating shaft 402, which is sleeved on the lower extension shaft of the rotating blade 401, prevents the rotating blade 401 from experiencing significant wear at the connection point with the air duct structure plate 101 and the insulation foam 102, thus avoiding inefficient transmission. Meanwhile, the three narrow air ducts 205 opened on the upper rear side of the air duct structure plate 101, through their narrow and curved structural design, enable the cold air transmitted from each air duct to achieve a better refrigeration effect on the items above as it passes through the narrow air ducts 205. At the same time, the baffles 206 installed at each corner of the narrow air duct 205 and at the connection point between the narrow air duct 205 and the corresponding main air duct ensure that the cold air maintains a stable and smooth flow during transmission, avoiding turbulence that could affect the flow rate.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thin-film refrigerator refrigeration air duct structure, comprising a main body component (1) and an air duct component (2) disposed on the main body component (1), characterized in that: The main body component (1) is equipped with mounting components (3) on both sides, and an auxiliary flow component (4) is mounted on the main body component (1). The main body component (1) includes a duct structure plate (101). The duct component (2) includes a first main duct (202), a second main duct (203), and a third main duct (204). The auxiliary flow component (4) includes a rotating blade (401), a sealing rotating shaft (402), a rotating gear (403), a transmission toothed belt (404), a protective cover (405), a second fixing screw (406), and a square groove (407). The duct structure plate (101) is mounted on the first main duct (202), the second main duct (203), and the third main duct (204). A square groove (407) is provided on the right side of the duct structure plate (101). The rotating blade (401) is set in each corresponding square groove (407), and its lower end is fixedly sleeved with a sealing rotating shaft (402) and a rotating gear (403). The sealing rotating shaft (402) is fixedly installed on the main body component (1). The transmission toothed belt (404) is engaged and wound between the three rotating gears (403). The protective cover (405) is set and fits against the bottom of the air duct structure plate (101) and wraps around the rotating gear (403) and the transmission toothed belt (404). The second fixing screw (406) is set at the four corners of the protective cover (405), and its threaded end passes through the protective cover (405) and the air duct structure plate (101) from top to bottom.

2. The ultra-thin refrigerator refrigeration air duct structure according to claim 1, characterized in that: The main component (1) also includes thermal insulation foam (102), and the air duct structure plate (101) is filled with thermal insulation foam (102).

3. The ultra-thin refrigerator refrigeration air duct structure according to claim 1, characterized in that: The air duct assembly (2) further includes an air outlet (201), a narrow air duct (205), and a partition (206). The air outlet (201) is located on the front side of the upper end of the air duct structure plate (101). A first main air duct (202), a second main air duct (203), and a third main air duct (204) are sequentially formed from left to right at the rear end of the air outlet (201) on the air duct structure plate (101). The first main air duct (202), the second main air duct (203), and the third main air duct (204) are formed on the air duct structure plate (101). 202) Narrow air ducts (205) are provided at the rear ends of the second main air duct (203) and the third main air duct (204) and are connected to them respectively. The partition (206) is set at each corner of the narrow air duct (205) and fixedly installed on the air duct structure plate (101). The first main air duct (202), the second main air duct (203) and the third main air duct (204) are provided with partitions (206) at the connection points with the corresponding narrow air ducts (205).

4. The ultra-thin refrigerator refrigeration air duct structure according to claim 1, characterized in that: The mounting assembly (3) includes a mounting plate (301) and a first fixing screw (302). The mounting plate (301) is disposed on both sides of the air duct structure plate (101) and fixedly installed on the side wall of the air duct structure plate (101). The mounting plate (301) is provided with a first fixing screw (302) at the front and rear angles. The threaded end of the first fixing screw (302) passes through the mounting plate (301) from below.

5. The ultra-thin refrigerator refrigeration air duct structure according to claim 2, characterized in that: The air duct structure plate (101) is made of aluminum alloy and has a hollow structure inside.