Air duct structure and wine cabinet

Abstract

The utility model relates to a kind of air duct structure and wine cabinet, belong to wine cabinet field, air duct structure includes: support plate;Air duct shell, air duct shell is set on support plate, air duct shell and support plate form air gap, air duct shell is equipped with wind passage, the side of air duct shell away from support plate is equipped with the air inlet opening of being communicated with wind passage, the side of air duct shell close to support plate is equipped with the air outlet opening of being communicated with wind passage, air outlet opening and air gap place are opposite;Refrigeration component, refrigeration component is set on air duct shell and is located in wind passage;Fan assembly, fan assembly is set on air duct shell, fan assembly is used to generate negative pressure at air inlet opening and export by air outlet opening.This application discloses air duct structure integrates refrigeration, air guide and air supply function in a continuous, closed flow channel, effectively avoid the unnecessary dissipation caused by free diffusion in the process of delivery, and the reliability of temperature regulation is good.

Description

Technical Field

[0001] This utility model relates to the field of wine cabinets, and in particular to an air duct structure and a wine cabinet. Background Technology

[0002] As a professional storage device, the core function of a wine cabinet is to provide a constant, uniform, and suitable storage environment for temperature-sensitive items such as wine. Temperature is the most critical factor affecting the aging process, flavor preservation, and quality stability of wine. Inappropriate or fluctuating temperatures can accelerate the aging of wine and even cause irreversible damage. However, traditional wine cabinets suffer from poor temperature control reliability, making them unsuitable for use. Utility Model Content

[0003] Therefore, it is necessary to provide an air duct structure and wine cabinet to address the problems of poor temperature regulation reliability and unfavorable use in traditional wine cabinet technologies.

[0004] A duct structure includes: a support plate; a duct housing disposed on the support plate, with a guide gap formed between the duct housing and the support plate, the duct housing having an air passage cavity, an air inlet opening communicating with the air passage cavity on the side of the duct housing away from the support plate, and an air outlet opening communicating with the air passage cavity on the side of the duct housing near the support plate, the air outlet opening being opposite to the guide gap; a cooling component disposed on the duct housing and located within the air passage cavity; and a fan assembly disposed on the duct housing, the fan assembly being used to generate negative pressure at the air inlet opening and output it through the air outlet opening.

[0005] The first aspect of this application discloses an air duct structure in which a cooling component is built into the air passage cavity formed by the air duct shell. This component works in conjunction with the negative pressure generated at the air inlet by the fan assembly to ensure that external air is continuously and controllably drawn into the air passage cavity and undergoes sufficient heat exchange as it flows over the surface of the cooling component, thus ensuring that the air is sufficiently cooled before leaving the air passage cavity. This design allows the air to be cooled during flow, and the cooled air is then blown into the air guide gap from the air outlet, forming a directional cold airflow. Furthermore, integrating cooling, air guiding, and air delivery functions into a continuous, closed flow channel effectively avoids unnecessary dissipation of cold energy due to free diffusion during transport, significantly improving the efficiency of cold energy transport from the cold source to the target area, such as the inside of a wine cabinet. This improves the overall temperature regulation response speed and energy efficiency, thereby enhancing the temperature regulation efficiency and reliability of the wine cabinet. The overall structure of the air duct structure of this application is relatively simple, effectively reducing production costs and improving economic benefits.

[0006] In one embodiment, the duct housing includes a top plate assembly, an air guide plate, an air suction plate, and side plates. The top plate assembly is disposed on the support plate, the air suction plate is disposed on the top plate assembly, and the air guide plate is disposed on the air suction plate. There are two side plates located on both sides of the top plate assembly, the air guide plate, and the air suction plate, and simultaneously connected to these components. The top plate assembly, the air guide plate, the air suction plate, and the side plates enclose and form the air passage cavity. The air guide plate has an air outlet opening, and the air suction plate has an air inlet opening. A guide gap is formed between the air guide plate and the support plate. The air passage cavity, formed by the top plate assembly, the air guide plate, the air suction plate, and the side plates, allows for the installation of refrigeration components, enabling stable cooling and reliable cooling and cooling capacity delivery, thereby achieving reliable temperature regulation. By creating an air guide gap between the air guide plate and the support plate, the cold air output from the air outlet can be delivered to the corresponding internal area of ​​the wine cabinet, improving the preservation effect of the wine.

[0007] In one embodiment, the angle between the air guide plate and the support plate is acute, the angle between the suction plate and the top plate assembly is acute, the angle between the suction plate and the air guide plate is obtuse, and the angle between the air guide plate and the top plate assembly is acute. The acute angle between the air guide plate and the support plate effectively increases the space of the air guide gap, preventing excessive air pressure at the gap from affecting the subsequent air outlet. This is beneficial for air pressure balance, accelerating cooling output, and preventing temperature fluctuations. This design causes the cross-sectional area of ​​the air guide gap to gradually decrease in the downward direction, resulting in a slow reduction in the delivery rate of cold air. The air enters the corresponding wine storage area with a lower, gentler wind speed, ensuring reliable transmission. It also makes the installation of the duct housing stable and reliable. The obtuse angle between the suction plate and the air guide plate, with the fan assembly mounted on the air guide plate, means that the cross-sectional area of ​​the air passage cavity gradually increases in the direction towards the fan assembly. This helps reduce the wind speed, ensuring full contact with the cooling components and achieving a stable and reliable cold air output.

[0008] In one embodiment, at least a portion of the air guide plate, the air suction plate, and the side plate are integrally formed. By integrally forming at least a portion of the air guide plate, the air suction plate, and the side plate, a sealed air passage cavity can be formed, eliminating the need for separate installation of individual components and simplifying product manufacturing.

[0009] In one embodiment, the top plate assembly includes a support plate, a support side plate, and a support panel. The support plate is disposed on the air guide plate, the air suction plate, and the side plate. The support plate has an installation opening. The support side plate is disposed on the support plate and surrounds the installation opening. The support panel is disposed on the support side plate, and the cooling component is disposed on the support panel. By disposing the support side plate on the support plate and surrounding the installation opening, the support panel, after being connected to the support side plate, directly seals the entire installation opening, preventing airflow leakage from the installation opening and achieving reliable airflow delivery and cooling. By disposing the cooling component on the support panel, stable installation of the cooling component is achieved, ensuring stable cooling performance.

[0010] In one embodiment, the air guide plate has a liquid outlet adjacent to the lowest point of the air passage cavity relative to the horizontal plane. It also includes a liquid outlet pipe connected to the sidewall of the liquid outlet, used to drain condensed liquid from the air passage cavity. By providing a liquid outlet on the air guide plate, the problem of collecting and draining condensate generated on the surface of the refrigeration components within the air passage cavity is effectively solved. The liquid outlet is positioned at the lowest point of the air passage cavity relative to the horizontal plane, conforming to the natural convergence of liquids due to gravity, ensuring that the condensed liquid can spontaneously and completely collect and drain from the outlet. The connection between the liquid outlet pipe and the sidewall of the liquid outlet forms a dedicated flow channel separate from the main structure of the air duct, allowing the accumulated liquid to be guided orderly and smoothly to a designated location outside the air duct, preventing it from stagnating at the bottom of the air passage cavity. This design prevents the uncontrolled accumulation of condensate in the duct, avoiding potential adverse effects of liquid on the airflow inside the duct, the normal operation of the refrigeration components, and the structural hygiene environment, thereby ensuring the long-term reliability and stability of the duct system.

[0011] In one embodiment, the suction plate includes a suction plate body and guide plates. The suction plate body is disposed on the top plate assembly, and the guide plate is disposed on the suction plate body. There are multiple air inlets spaced apart on the suction plate body. There are also multiple guide plates disposed on the suction plate body and located at the respective air inlets, within the air passage cavity. The multiple guide plates effectively rectify and guide the incoming air. This design ensures protection for internal functional components such as cooling components while effectively increasing the air intake area.

[0012] In one embodiment, there are multiple air outlets and multiple fan assemblies, each located at one of the multiple air outlets within the air passage cavity. By positioning multiple fan assemblies at multiple air outlets, the cooled air flowing from the air passage cavity can be simultaneously and actively blown out from multiple locations. This design increases the overall output area of ​​the cold airflow, resulting in a more uniform distribution of the airflow along the guide gaps and improved reliability.

[0013] In one embodiment, a heating component is also included, located within the air passage cavity and disposed on the duct housing. By placing the heating component on the duct housing and within the air passage cavity, the temperature regulation functionality and application flexibility of the duct structure are enhanced. When heating is required, the heating component activates, concentrating and heating the air flowing through the air passage cavity. Subsequently, driven by a fan, the air is delivered at high speed and directionally to the target space from the air outlet. This design achieves reliable temperature regulation.

[0014] In one embodiment, one side of the air guide gap is the air outlet surface of the duct housing, and the other side is the support plate. The angle between the air outlet surface and the support plate is an acute angle. Because the angle between the air outlet surface and the support plate is acute, the cross-sectional area of ​​the air guide gap gradually decreases in the airflow direction, thereby gradually slowing down the airflow passing through the air guide gap. This achieves the function of smoothly delivering the air to the target space and improves the reliability of temperature regulation.

[0015] A wine cabinet includes: the aforementioned air duct structure; an outer shell assembly, wherein the air duct structure is disposed on and located within the outer shell assembly, the air duct structure and the outer shell assembly cooperate to form a temperature regulating cavity, and the outer shell assembly has an opening communicating with the temperature regulating cavity; a door assembly, the door assembly being rotatably disposed on the outer shell assembly and located at the opening, the air inlet being located on the side of the temperature regulating cavity, and the air guide gap being located on the side of the temperature regulating cavity away from the opening; and multiple shelves, the multiple shelves being arranged sequentially at intervals along the height direction of the temperature regulating cavity.

[0016] The second aspect of this application discloses a wine cabinet that reliably regulates the temperature of the airflow entering the duct structure by employing the aforementioned air duct structure. The temperature-regulating cavity allows for the introduction of pre-regulated airflow from the air guide gap, thereby achieving temperature regulation within the cavity and ensuring that each type of wine can be stored at the appropriate temperature with high reliability. Multiple shelves are arranged sequentially along the height of the regulating cavity; these shelves can be fully pulled out or pushed in, making it simple and convenient to retrieve and store wine. Attached Figure Description

[0017] Figure 1 This is the first three-dimensional view of the air duct structure;

[0018] Figure 2 This is a second three-dimensional view of the air duct structure;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the air duct structure;

[0021] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0022] Figure 6 This is the first exploded view of the air duct structure;

[0023] Figure 7 This is the second exploded view of the air duct structure;

[0024] Figure 8 This is a three-dimensional view of the air duct casing;

[0025] Figure 9 This is an exploded view of the air duct shell.

[0026] Figure 10 This is a 3D view of the roof panel assembly;

[0027] Figure 11 A 3D view of the air guide plate, air suction plate, and side plate;

[0028] Figure 12 A 3D view of the wine cabinet;

[0029] Figure 13 This is a cross-sectional view of the wine cabinet.

[0030] The correspondence between the reference numerals and the component names is as follows:

[0031] 1. Support plate;

[0032] 2. Duct housing, 21. Top plate assembly, 211. Support plate, 212. Support side plate, 213. Support panel, 21101. Mounting port, 22. Air guide plate, 23. Air suction plate, 231. Air suction plate body, 232. Guide plate, 24. Side plate, 201. Air guide gap, 202. Air passage cavity, 203. Air inlet opening, 204. Air outlet opening, 205. Liquid outlet.

[0033] 3. Refrigeration components;

[0034] 4. Fan components;

[0035] 5. Heating components;

[0036] 6. Discharge tube;

[0037] 100 air duct structure;

[0038] 200 housing components;

[0039] 300 door components;

[0040] 400 storage rack. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0043] Example 1

[0044] like Figure 1-11 As shown, this embodiment discloses an air duct structure, which includes: a support plate 1; an air duct housing 2, which is disposed on the support plate 1, forming an air guide gap 201 between the air duct housing 2 and the support plate 1, the air duct housing 2 having an air passage cavity 202, an air inlet opening 203 communicating with the air passage cavity 202 on the side of the air duct housing 2 away from the support plate 1, and an air outlet opening 204 communicating with the air passage cavity 202 on the side of the air duct housing 2 close to the support plate 1, the air outlet opening 204 being opposite to the air guide gap 201; a cooling component 3, which is disposed on the air duct housing 2 and located within the air passage cavity 202; and a fan assembly 4, which is disposed on the air duct housing 2 and is used to generate negative pressure at the air inlet opening 203 and output it through the air outlet opening 204.

[0045] The first aspect of this application discloses an air duct structure in which a cooling component 3 is built into the air passage cavity 202 formed by the air duct housing 2, and works in conjunction with the negative pressure generated at the air inlet 203 by the fan component 4 to ensure that external air is continuously and controllably drawn into the air passage cavity 202 and completes sufficient heat exchange as it flows through the surface of the cooling component 3, so that the air is fully cooled before leaving the air passage cavity 202. This design allows the air to be cooled during the flow process, and the cooled air is then blown into the air guide gap 201 from the air outlet 204, forming a directional cold airflow. Moreover, by integrating the cooling, air guiding, and air supply functions into a continuous and sealed flow channel, unnecessary dissipation of cold energy caused by free diffusion during the transportation process is effectively avoided, significantly improving the efficiency of cold energy transportation from the cold source to the target area, such as the inside of a wine cabinet, improving the overall temperature regulation response speed and energy efficiency, thereby improving the temperature regulation efficiency of the wine cabinet and ensuring good temperature regulation reliability. The overall structure of the air duct structure of this application is relatively simple, which can effectively reduce production costs and improve economic benefits.

[0046] like Figure 6-9 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the air duct housing 2 includes a top plate assembly 21, an air guide plate 22, an air suction plate 23, and side plates 24. The top plate assembly 21 is disposed on the support plate 1, the air suction plate 23 is disposed on the top plate assembly 21, the air guide plate 22 is disposed on the air suction plate 23, and there are two side plates 24. The two side plates 24 are located on both sides of the top plate assembly 21, the air guide plate 22, and the air suction plate 23 and are simultaneously connected to the top plate assembly 21, the air guide plate 22, and the air suction plate 23. The top plate assembly 21, the air guide plate 22, the air suction plate 23, and the side plates 24 enclose the air passage cavity 202. The air guide plate 22 has an air outlet 204, and the air suction plate 23 has an air inlet 203. The air guide plate 22 and the support plate 1 form the air guide gap 201. The top panel assembly 21, air guide plate 22, air suction plate 23, and side panel 24 enclose an air passage cavity 202. The air passage cavity 202 can accommodate the refrigeration component 3, enabling stable cooling and reliable cooling and heat dissipation, thus ensuring reliable temperature control. An air guide gap 201 is formed between the air guide plate 22 and the support plate 1, allowing the cold air output from the air outlet 204 to be delivered to the corresponding internal area of ​​the wine cabinet, improving the preservation effect on the wine.

[0047] like Figure 4 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the included angle between the air guide plate 22 and the support plate 1 is an acute angle, the included angle between the suction plate 23 and the top plate assembly 21 is an acute angle, the included angle between the suction plate 23 and the air guide plate 22 is an obtuse angle, and the included angle between the air guide plate 22 and the top plate assembly 21 is an acute angle. By making the included angle between the air guide plate 22 and the support plate 1 acute, the space of the air guide gap 201 can be effectively increased, avoiding the phenomenon of excessive air pressure at the air guide gap 201 affecting the subsequent air outlet 204. This has a positive effect on air pressure balance, accelerating the output of cooling capacity, and avoiding temperature fluctuations. This design causes the cross-sectional area of ​​the air guide gap 201 to gradually decrease in the downward direction, resulting in a slow decrease in the delivery rate of cold air. The cold air enters the corresponding wine-containing area from a lower, gentler wind speed, achieving reliable transmission. Furthermore, it ensures the stable and reliable installation of the air duct housing 2. With the angle between the suction plate 23 and the guide plate 22 being an obtuse angle and the fan assembly 4 being set on the guide plate 22, the cross-sectional area of ​​the air passage 202 gradually increases in the direction towards the fan assembly 4, which helps to reduce the wind speed and make it fully contact the cooling component 3, thus achieving a stable and reliable cold air output.

[0048] like Figure 6-9 As shown, in addition to the features of the above embodiments, this embodiment further specifies that at least a portion of the air guide plate 22, the air suction plate 23, and the side plate 24 are integrally formed. By integrally forming at least a portion of the air guide plate 22, the air suction plate 23, and the side plate 24, a sealed air passage cavity 202 can be formed, and the installation of individual components is eliminated, making product manufacturing simpler and more convenient.

[0049] like Figure 9 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further defines the following: the top plate assembly 21 includes a support plate 211, a support side plate 212, and a support panel 213. The support plate 211 is disposed on the air guide plate 22, the air suction plate 23, and the side plate 24. The support plate 211 has an installation opening 21101. The support side plate 212 is disposed on the support plate 211 and surrounds the installation opening 21101. The support panel 213 is disposed on the support side plate 212. The cooling assembly 3 is disposed on the support panel 213. By disposing of the support side plate 212 on the support plate 211 and surrounding the installation opening 21101, the support panel 213, after being connected to the support side plate 212, directly seals the entire installation opening 21101, preventing airflow leakage from the installation opening 21101 and achieving reliable airflow delivery and cooling. By disposing of the cooling assembly 3 on the support panel 213, stable installation of the cooling assembly 3 can be achieved, ensuring that the cooling assembly 3 can stably perform cooling.

[0050] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the air guide plate 22 has a liquid outlet 205, which is adjacent to the lowest point of the air passage cavity 202 relative to the horizontal plane, and also includes a liquid outlet pipe 6, which is connected to the side wall of the liquid outlet 205. The liquid outlet pipe 6 is used to discharge the condensed liquid in the air passage cavity 202. By opening the liquid outlet 205 on the air guide plate 22, the problem of collecting and discharging condensate generated on the surface of the refrigeration component 3 in the air passage cavity 202 is effectively solved. The liquid outlet 205 is set at the lowest point of the air passage cavity 202 relative to the horizontal plane, which conforms to the law of natural convergence of liquid due to gravity, ensuring that the liquid generated by condensation can spontaneously and completely collect and be discharged from the liquid outlet 205. The connection between the liquid outlet pipe 6 and the side wall of the liquid outlet 205 forms a dedicated flow channel separate from the main structure of the duct. This allows accumulated liquid to be guided in an orderly and smooth manner to a designated location outside the duct, preventing it from stagnating at the bottom of the air passage 202. This design prevents uncontrolled accumulation of condensate within the duct, avoiding potential adverse effects on airflow, normal operation of the refrigeration components 3, and the structural hygiene of the duct system. This ensures the long-term reliability and stability of the duct system.

[0051] like Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the suction plate 23 includes a suction plate body 231 and guide plates 232. The suction plate body 231 is disposed on the top plate assembly 21, the air guide plate 22 is disposed on the suction plate body 231, the number of air inlet openings 203 is multiple, and the multiple air inlet openings 203 are spaced apart on the suction plate body 231. The number of guide plates 232 is multiple, and the multiple guide plates 232 are disposed on the suction plate body 231 and respectively located at the multiple air inlet openings 203. The guide plates 232 are located within the air passage cavity 202. The arrangement of multiple guide plates 232 plays a key role in rectifying and guiding the incoming air. This design effectively increases the air intake area while ensuring the protection of internal functional components such as the cooling assembly 3.

[0052] like Figure 3 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of air outlet openings 204 is multiple, the number of fan assemblies 4 is multiple, and the multiple fan assemblies 4 are respectively located at the multiple air outlet openings 204, and the fan assemblies 4 are located within the air passage cavity 202. By having multiple fan assemblies 4 respectively located at multiple air outlet openings 204, the cooled air flowing out of the air passage cavity 202 can be simultaneously and actively blown out from multiple positions. This design increases the overall output area of ​​the cold airflow, making the distribution of the airflow along the air guide gap 201 more uniform and reliable.

[0053] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes a heating component 5, which is located within the air passage cavity 202 and is disposed on the air duct housing 2. By placing the heating component 5 on the air duct housing 2 and within the air passage cavity 202, the temperature regulation functionality and application flexibility of the air duct structure are enhanced. When heating is required, the heating component 5 is activated, and the air flowing through the air passage cavity 202 is concentratedly heated. Subsequently, driven by a fan, it is transported at high speed and directionally to the target space from the air outlet 204. This design achieves reliable temperature regulation.

[0054] like Figure 2-5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one side of the air guide gap 201 is the air outlet surface of the air duct housing 2, and the other side of the air guide gap 201 is the support plate 211, with an acute angle between the air outlet surface and the support plate 211. Because the angle between the air outlet surface and the support plate 211 is acute, the cross-sectional area of ​​the air guide gap 201 gradually decreases in the airflow direction, thereby gradually slowing down the airflow passing through the air guide gap 201, achieving a smooth delivery to the target space, and improving the reliability of temperature regulation.

[0055] Example 2

[0056] like Figure 12-13As shown, this embodiment discloses a wine cabinet, which includes: the aforementioned air duct structure 100; an outer shell assembly 200, wherein the air duct structure 100 is disposed on and located inside the outer shell assembly 200, the air duct structure 100 and the outer shell assembly 200 cooperate to form a temperature regulating cavity, and the outer shell assembly 200 has an opening communicating with the temperature regulating cavity; a door assembly 300, wherein the door assembly 300 is rotatably disposed on the outer shell assembly 200 and located at the opening, the air inlet 203 is located on the side of the temperature regulating cavity, and the air guide gap 201 is located on the side of the temperature regulating cavity away from the opening; and multiple shelves 400, wherein the multiple shelves 400 are arranged sequentially at intervals along the height direction of the temperature regulating cavity.

[0057] The second aspect of this application discloses a wine cabinet. By setting the aforementioned air duct structure 100, the temperature of the airflow entering the air duct structure 100 can be reliably regulated. The temperature-regulating cavity allows for the introduction of pre-regulated airflow from the air guide gap 201, thereby achieving temperature regulation of the airflow within the temperature-regulating cavity. This ensures that each type of wine can be stored at a suitable temperature within the temperature-regulating cavity, resulting in high reliability. Multiple shelves 400 are arranged sequentially along the height direction of the regulating cavity. The shelves 400 can be fully pulled out or pushed in, making it simple and convenient to take out and put away wine.

[0058] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A duct structure, characterized in that, The aforementioned air duct structure includes: Support plate (1); A duct housing (2) is disposed on the support plate (1). A guide gap (201) is formed between the duct housing (2) and the support plate (1). The duct housing (2) is provided with an air passage cavity (202). An air inlet opening (203) communicating with the air passage cavity (202) is opened on the side of the duct housing (2) away from the support plate (1). An air outlet opening (204) communicating with the air passage cavity (202) is opened on the side of the duct housing (2) close to the support plate (1). The air outlet opening (204) is opposite to the guide gap (201). A refrigeration component (3) is disposed on the air duct housing (2) and located inside the air passage cavity (202); A fan assembly (4) is disposed on the air duct housing (2) and is used to generate negative pressure at the air inlet opening (203) and output it through the air outlet opening (204).

2. The air duct structure according to claim 1, characterized in that, The air duct housing (2) includes a top plate assembly (21), an air guide plate (22), an air suction plate (23), and side plates (24). The top plate assembly (21) is mounted on the support plate (1), the air suction plate (23) is mounted on the top plate assembly (21), the air guide plate (22) is mounted on the air suction plate (23), and there are two side plates (24). The two side plates (24) are located on both sides of the top plate assembly (21), the air guide plate (22), and the air suction plate (23) and are on the same side. The top plate assembly (21), the air guide plate (22), and the air suction plate (23) are connected together. The top plate assembly (21), the air guide plate (22), the air suction plate (23), and the side plate (24) enclose the air passage cavity (202). The air guide plate (22) has the air outlet opening (204), and the air suction plate (23) has the air inlet opening (203). The air guide plate (22) and the support plate (1) form the air guide gap (201).

3. The air duct structure according to claim 2, characterized in that, The angle between the air guide plate (22) and the support plate (1) is an acute angle; And / or the angle between the suction plate (23) and the top plate assembly (21) is an acute angle, the angle between the suction plate (23) and the air guide plate (22) is an obtuse angle, and the angle between the air guide plate (22) and the top plate assembly (21) is an acute angle; And / or at least a portion of the air guide plate (22), the air suction plate (23), and the side plate (24) are integrally formed.

4. The air duct structure according to claim 2, characterized in that, The top plate assembly (21) includes a support plate (211), a support side plate (212), and a support panel (213). The support plate (211) is disposed on the air guide plate (22), the air suction plate (23), and the side plate (24). The support plate (211) has an installation opening (21101). The support side plate (212) is disposed on the support plate (211) and surrounds the installation opening (21101). The support panel (213) is disposed on the support side plate (212). The refrigeration component (3) is disposed on the support panel (213).

5. The air duct structure according to claim 2, characterized in that, The air guide plate (22) has a liquid outlet (205) which is adjacent to the lowest point of the air passage cavity (202) on the horizontal plane. It also includes a liquid outlet pipe (6) which is connected to the side wall of the liquid outlet (205). The liquid outlet pipe (6) is used to discharge the condensed liquid in the air passage cavity (202).

6. The air duct structure according to claim 2, characterized in that, The suction plate (23) includes a suction plate body (231) and guide plates (232). The suction plate body (231) is disposed on the top plate assembly (21). The air guide plate (22) is disposed on the suction plate body (231). There are multiple air inlets (203), which are spaced apart on the suction plate body (231). There are multiple guide plates (232), which are disposed on the suction plate body (231) and located at the multiple air inlets (203). The guide plates (232) are located in the air passage cavity (202).

7. The air duct structure according to claim 1, characterized in that, The number of air outlets (204) is multiple, the number of fan assemblies (4) is multiple, the multiple fan assemblies (4) are respectively located at the multiple air outlets (204), and the fan assemblies (4) are located in the air passage cavity (202).

8. The air duct structure according to claim 1, characterized in that, It also includes a heating component (5), which is located inside the air passage cavity (202) and is disposed on the air duct housing (2).

9. The air duct structure according to claim 1, characterized in that, One side of the air guide gap (201) is the air outlet surface of the air duct housing (2), and the other side of the air guide gap (201) is the support plate (1). The included angle between the air outlet surface and the support plate (1) is an acute angle.

10. A wine cabinet, characterized in that, The wine cabinet mentioned includes: The air duct structure (100) according to any one of claims 1 to 9; The outer casing assembly (200) has an air duct structure (100) disposed on the outer casing assembly (200) and located inside the outer casing assembly (200). The air duct structure (100) cooperates with the outer casing assembly (200) to form a temperature regulating cavity. The outer casing assembly (200) has an opening communicating with the temperature regulating cavity. A door assembly (300) is rotatably mounted on the outer shell assembly (200) and located at the opening. The air inlet (203) is located on the side of the temperature regulating cavity, and the air guide gap (201) is located on the side of the temperature regulating cavity away from the opening. The number of shelves (400) is multiple, and the multiple shelves (400) are arranged at intervals along the height direction of the temperature regulating cavity.

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