An ultra-thin air-cooled structure

Abstract

The present application relates to the technical field of display cabinet, specifically to an ultra-thin air cooling structure, comprising an inner container, an evaporator, an ultra-thin centrifugal fan, a volute air duct, a fan cover and a wind baffle; the evaporator is arranged at the rear top of the inner container, the ultra-thin centrifugal fan is arranged at the front top of the inner container, the ultra-thin centrifugal fan is configured with the volute air duct and sends air to the evaporator from below after sucking air, the fan cover is arranged outside the ultra-thin centrifugal fan, and the wind baffle is installed on the upper part of the ultra-thin centrifugal fan to reduce wind loss and force air flow to pass through the inside of the evaporator. In the ultra-thin air cooling structure, the top space occupation is greatly reduced, and the space utilization is improved. By adopting the ultra-thin evaporator and the ultra-thin centrifugal fan, the layout of the components at the top of the inner container is optimized, the irregular triangular structure in the prior art is cancelled, the top air cooling structure is designed to be ultra-thin, and the top occupied space is effectively compressed.

Description

Technical Field

[0001] This invention relates to the field of display cabinet technology, and more specifically, to an ultra-thin air-cooled structure. Background Technology

[0002] Refrigerated display cases are commonly used refrigeration equipment in supermarkets and convenience stores. The space utilization and heat exchange efficiency of their top air-cooled structure directly affect the user experience and manufacturing costs. Existing display cases generally adopt a traditional layout for their air-cooled structures, with the evaporator and fan assembly concentrated at the top of the inner liner. To accommodate the fan control board, this is often designed as an irregular triangular structure, resulting in a large top space occupation, a bulky structure, and limited storage space at the front of the inner liner, making it difficult to neatly place items, thus wasting space. Furthermore, traditional evaporators are mostly of standard thickness with simple air duct designs, lacking optimization for condensate drainage and airflow loss control. This easily leads to technical problems such as condensate freezing and duct blockage, high airflow loss, and low evaporator heat exchange efficiency. Additionally, the complex structural design and high manufacturing costs contribute to these issues.

[0003] In the prior art, patent document CN101347297A discloses a single-chamber dual-mode refrigeration vertical ice cream display case. In the air-cooled structure disclosed in this patent, the evaporator and fan assembly are arranged as a whole on the top of the inner liner. The evaporator and fan are of conventional thickness, which occupies a large amount of top space and cannot achieve an ultra-thin design. Its air duct does not have an anti-icing avoidance space, and condensate is easy to accumulate and freeze in the air duct, causing blockage. The fan air guide structure is simple, without forced air guide and sealing structure, resulting in high air power loss. It cannot meet the multiple requirements of ultra-thin space adaptation, efficient heat exchange and condensate anti-icing, and it is difficult to solve the technical pain points of low space utilization and poor heat exchange efficiency of the existing display case air-cooled structure. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-thin air-cooled structure to solve the problems mentioned in the background art, such as the single air guide structure of the fan, the lack of forced air guide and sealing structure, high air loss, and the inability to meet the multiple requirements of ultra-thin space adaptation, efficient heat exchange and condensate anti-icing.

[0005] To achieve the above objectives, the present invention provides an ultra-thin air-cooled structure, including an inner liner, an evaporator, an ultra-thin centrifugal fan, a volute air duct, a fan cover, and a baffle plate; the evaporator is located at the rear top of the inner liner, the ultra-thin centrifugal fan is located at the front top of the inner liner, the ultra-thin centrifugal fan is configured with a volute air duct and draws air from below before supplying air to the evaporator, the fan cover is installed on the outside of the ultra-thin centrifugal fan, and the baffle plate is installed on the upper part of the ultra-thin centrifugal fan to reduce airflow loss and force airflow through the interior of the evaporator.

[0006] This design achieves ultra-thin top space by rationally arranging the positions of the evaporator and ultra-thin centrifugal fan, using an ultra-thin centrifugal fan and configuring a volute air duct, combined with a baffle plate for forced airflow, thus reducing space occupation, reducing wind power loss, ensuring that airflow effectively passes through the evaporator, and improving heat exchange efficiency.

[0007] Preferably, the evaporator has an ultra-thin structure and adopts a double-layer pipeline structure. A panel is installed on the outside of the evaporator, and an ultra-thin centrifugal fan is installed on the panel. A heat exchange air duct is formed between the double-layer pipeline structure and the panel. Aluminum fin heat sinks are installed on the double-layer pipeline structure to increase the heat exchange area and improve the heat exchange efficiency.

[0008] This setup utilizes an ultra-thin double-layer pipe structure evaporator paired with aluminum fin heat sinks, forming an independent heat exchange air duct with the panel. This effectively increases the heat exchange contact area, enhances heat conduction, and further improves the evaporator's heat exchange efficiency, while also being suitable for installation in ultra-thin spaces.

[0009] As a preferred option, the volute duct is integrated with the ultra-thin centrifugal fan, and the inner wall of the volute duct is provided with a flow guiding structure, which is used to guide the airflow, reduce wind resistance and improve the air volume output capacity.

[0010] This design integrates the volute duct with the fan and adds a flow guide structure, which can regulate the airflow direction, reduce airflow turbulence loss, and lower wind resistance, thereby improving the fan's air volume output capacity and optimizing the duct's air delivery effect.

[0011] Preferably, the bottom of the wind deflector is provided with a drain hole, which is used to quickly drain condensate and prevent condensate from accumulating and freezing in a localized area.

[0012] This feature, by creating a drain hole at the bottom of the baffle plate, allows for the timely removal of condensate produced by the evaporator, preventing condensate from accumulating and freezing, ensuring unobstructed airflow, and reducing equipment malfunctions.

[0013] Preferably, the pipes in the double-layer pipe structure are arranged in parallel, and the aluminum heat sinks are arranged in an array and fixedly connected to the double-layer pipe structure to ensure that the airflow passes through the heat exchange duct evenly.

[0014] This setup, through the parallel arrangement of double-layer pipelines and the array-style arrangement of aluminum fin heat sinks, ensures uniform airflow through the heat exchange duct, guarantees heat exchange uniformity, avoids insufficient local heat exchange, and improves overall heat exchange stability.

[0015] As a preferred option, the ultra-thin centrifugal fan is equipped with a low-speed, high-airflow drive motor, which is integrated with the fan body to meet the installation requirements of ultra-thin overhead spaces.

[0016] This feature, by configuring a low-speed, high-airflow drive motor and integrating it into a single unit, can meet the high airflow output requirements within ultra-thin space constraints, while reducing fan operating noise and improving user comfort.

[0017] Preferably, a flow equalization plate is provided on the side of the panel near the heat exchange air duct outlet, and the flow equalization plate is arranged at equal intervals to form several uniform air outlets.

[0018] This setting distributes the airflow at the outlet of the heat exchange duct evenly through the flow equalization plate, which can make the delivered airflow uniformly distributed, avoid excessive or insufficient local airflow, and optimize the cooling uniformity inside the display case.

[0019] Preferably, a sealing structure is provided on the side of the wind deflector, which fits into the outer wall of the fan cover to block lateral air leakage and improve airflow utilization.

[0020] This feature blocks lateral air leakage through the side sealing structure of the baffle plate, which reduces wind diversion loss, allows more airflow to pass effectively through the evaporator, improves airflow utilization, and further enhances the heat exchange effect.

[0021] Preferably, both ends of the double-layer pipe structure are connected to the refrigeration circuit pipe, and the interlayer space of the double-layer pipe structure is matched with the heat exchange air duct, so that the circulating airflow can fully contact the aluminum heat sink and enhance heat exchange.

[0022] This design, through the interlayer space of the double-layer pipeline and the heat exchange air duct, allows the circulating airflow to fully contact the aluminum fin heat sink, extends the airflow heat exchange path, enhances the heat exchange process, and improves the overall cooling efficiency.

[0023] Preferably, the side of the wind deflector is engaged with the panel via a snap-fit ​​mechanism.

[0024] This feature allows for a detachable connection between the wind deflector and the panel via a snap-fit ​​mechanism, making installation and disassembly convenient. This facilitates subsequent equipment maintenance and parts replacement, reducing maintenance costs.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This ultra-thin air-cooled structure significantly reduces the space occupied at the top, improving space utilization. By adopting an ultra-thin evaporator and an ultra-thin centrifugal fan, the layout of the top components of the inner liner is optimized, and the irregular triangular structure in the existing technology is eliminated, so that the top air-cooling structure can be designed to be ultra-thin. This effectively reduces the space occupied at the top, and items can be placed neatly in the top area of ​​the inner liner, significantly improving the utilization rate of the storage space inside the display cabinet, avoiding space waste, while simplifying the structural design and reducing manufacturing costs.

[0026] 2. This ultra-thin air-cooled structure reduces wind power loss and improves airflow efficiency. By integrating a volute air duct with a flow guiding structure and a baffle plate with a sealing structure, the airflow direction is effectively regulated, lateral air leakage is blocked, airflow turbulence and diversion losses are reduced, the fan's air volume output capacity and airflow utilization rate are improved, and the airflow is ensured to pass stably through the interior of the evaporator, providing a foundation for efficient heat exchange.

[0027] 3. This ultra-thin air-cooled structure prevents condensate from freezing and blocking the air ducts, ensuring stable equipment operation. By opening drainage holes at the bottom of the baffle plate, condensate can be quickly discharged, preventing condensate from accumulating and freezing in the air duct area. This solves the problem of condensate freezing and clogging the air duct in existing technologies, ensuring long-term unobstructed air ducts, reducing equipment failures, and improving operational stability and reliability.

[0028] 4. This ultra-thin air-cooled structure enhances heat exchange efficiency and improves cooling performance. The evaporator adopts a double-layer pipeline structure and is equipped with an array of aluminum fin heat sinks. Combined with an independent heat exchange air duct and flow equalization plate design, it increases the heat exchange contact area, extends the heat exchange path, and ensures uniform airflow, which significantly improves the heat exchange efficiency of the evaporator, accelerates the cooling speed, makes the temperature distribution inside the display cabinet more uniform, and improves the cooling effect.

[0029] 5. This ultra-thin air-cooled structure is compact and easy to assemble, reducing maintenance difficulty. The components are integrated and modularly designed, with the wind deflector and panel connected by snap-fit, making installation and disassembly convenient and facilitating subsequent maintenance and parts replacement. It is suitable for installation in ultra-thin spaces, and the overall structure is simple, effectively reducing production assembly and subsequent maintenance costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is one of the structural schematic diagrams of the present invention; Figure 4 This is a second partial structural schematic diagram of the present invention; The meanings of the labels in the diagram are as follows: 1. Inner liner; 2. Evaporator; 3. Ultra-thin centrifugal fan; 4. Volute air duct; 5. Fan cover; 6. Baffle plate; 21. Double-layer pipeline structure; 22. Panel; 221. Heat exchange air duct; 222. Flow equalization plate; 23. Aluminum fin heat sink; 41. Air guiding structure; 62. Sealing structure. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides an ultra-thin air-cooled structure, such as Figures 1-4 As shown, it includes an inner liner 1, an evaporator 2, an ultra-thin centrifugal fan 3, a volute air duct 4, a fan cover 5, and a baffle plate 6; The inner liner 1 is the shell that supports the internal storage space of the display case. The evaporator 2, ultra-thin centrifugal fan 3, volute air duct 4, fan cover 5, and baffle 6 are all installed in the top area of ​​the inner liner 1. Evaporator 2 is the core component for refrigeration and heat exchange, used to absorb heat to achieve a refrigeration cycle; The ultra-thin centrifugal fan 3 is the power component for airflow transmission. The volute air duct 4 is used to regulate the airflow direction. The fan cover 5 is used to protect the fan and initially guide the airflow. The baffle 6 is used to block the airflow diversion and force the airflow to flow in a specific direction.

[0033] By integrating the ultra-thin air-cooled structure into the top of the inner liner 1, and using ultra-thin components with optimized air duct layout, an ultra-thin design for the top space is achieved, effectively reducing space occupation. The evaporator 2, ultra-thin centrifugal fan 3, volute air duct 4, fan cover 5, and baffle 6 work together to reduce wind power loss, prevent condensate from freezing, enhance heat exchange efficiency, and improve the utilization rate of the display cabinet's internal space and cooling stability.

[0034] In this embodiment, the evaporator 2 is fixedly installed at the rear top of the inner liner 1, the ultra-thin centrifugal fan 3 is fixedly installed at the front top of the inner liner 1, the volute air duct 4 is integrated with the ultra-thin centrifugal fan 3, the fan cover 5 is installed on the outside of the ultra-thin centrifugal fan 3, and the baffle plate 6 is installed on the upper part of the ultra-thin centrifugal fan 3.

[0035] Evaporator 2 is installed at the top rear of inner tank 1, and ultra-thin centrifugal fan 3 is installed at the top front of inner tank 1. The staggered layout can reasonably allocate the top space and adapt to the ultra-thin design requirements. The volute air duct 4 is integrated with the fan, and the fan cover 5 and the baffle 6 are set in layers, which can regulate the airflow in multiple ways, reduce the loss of airflow, and ensure that the airflow is stably delivered to the inside of evaporator 2, providing a foundation for efficient heat exchange.

[0036] Specifically, the evaporator 2 has an ultra-thin structure and adopts a double-layer pipe structure 21. A heat exchange air duct 221 is formed between the double-layer pipe structure 21 to increase the heat exchange area and ensure airflow.

[0037] The evaporator 2 adopts an ultra-thin double-layer pipe structure 21, which can effectively reduce its own thickness and adapt to the installation of ultra-thin space at the top; the double-layer pipe structure 21 forms an independent heat exchange air duct 221, which extends the airflow heat exchange path, increases the heat exchange contact area, enhances the heat conduction efficiency, and improves the cooling and heat exchange effect.

[0038] Furthermore, a panel 22 is installed on the outside of the evaporator 2, and an ultra-thin centrifugal fan 3 is fixedly installed on the panel 22. A flow equalization plate 222 is provided on the side of the panel 22 near the outlet of the heat exchange air duct 221. The flow equalization plate 222 is arranged at equal intervals to form several uniform air outlets.

[0039] The external panel 22 of the evaporator 2 can integrate the fan installation and airflow guidance functions. The ultra-thin centrifugal fan 3 can be stably installed through the panel 22, with a high degree of structural integration. The flow equalization plate 222 evenly distributes the airflow at the outlet of the heat exchange duct 221, which can make the delivered airflow evenly distributed, avoid excessive local airflow differences, and optimize the cooling uniformity inside the display cabinet.

[0040] Furthermore, aluminum fin heat sinks 23 are installed on the double-layer pipe structure 21. The aluminum fin heat sinks 23 are arranged in an array and fixedly connected to the double-layer pipe structure 21 to ensure that the airflow passes through the heat exchange duct 221 evenly.

[0041] The aluminum fin heat sink 23 is fixed in an array to the double-layer pipe structure 21, which can further increase the heat exchange contact area and improve the heat conduction rate. The array arrangement structure can guide the airflow to flow evenly through the heat exchange air duct 221, ensuring sufficient heat exchange, avoiding insufficient local heat exchange, and improving the overall heat exchange stability.

[0042] Furthermore, a flow guiding structure 41 is provided on the inner wall of the volute duct 4. The flow guiding structure 41 extends along the airflow delivery direction to guide the airflow, reduce wind resistance, and improve the air volume output capacity.

[0043] The inner wall of the volute duct 4 is equipped with a flow guiding structure 41, which can regulate the airflow direction, reduce airflow turbulence loss, and reduce wind resistance; optimize the fan's air delivery efficiency, improve air volume output capacity, ensure stable airflow delivery, and adapt to the airflow delivery needs of ultra-thin ducts.

[0044] Furthermore, the wind deflector 6 is a one-piece structure formed by bending, and a sealing structure 62 is provided on the side of the wind deflector 6. The sealing structure 62 fits into the outer wall of the fan cover 5 to block lateral air leakage and improve airflow utilization.

[0045] The baffle plate 6 adopts a bent one-piece structure, which has high structural strength and simple molding process; the side sealing structure 62 fits the outer wall of the fan cover 5, which can block lateral air leakage, reduce wind force diversion loss, and allow more airflow to effectively pass through the interior of the evaporator 2, improve airflow utilization, and enhance heat exchange effect.

[0046] Furthermore, the bottom of the wind deflector 6 is provided with a drain hole, and the inner side of the drain hole is provided with a guide slope to quickly drain the condensate and prevent the condensate from accumulating and freezing in a localized area.

[0047] The bottom of the baffle plate 6 has a drainage hole and a guide slope, which can timely and directionally discharge the condensate produced by the evaporator 2, prevent the condensate from accumulating and freezing in the air duct area, ensure the long-term smooth flow of the air duct, reduce equipment failure, and improve operational stability.

[0048] Furthermore, the side of the wind deflector 6 is engaged with the panel 22 by a buckle. The buckle is an elastic structure and is provided with anti-detachment limiting protrusions. The corresponding position on the side of the panel 22 is provided with an adapter slot for detachable fixed connection.

[0049] The wind deflector 6 is engaged with the panel 22 through a snap-fit ​​mechanism, allowing for quick installation and disassembly without the need for special tools, facilitating subsequent equipment maintenance and parts replacement. The snap-fit ​​anti-dislodgement limit protrusion enhances connection stability, prevents detachment during operation, and ensures structural reliability.

[0050] Furthermore, the ultra-thin centrifugal fan 3 is equipped with a low-speed, high-airflow drive motor. The drive motor is integrated with the fan body, and the motor output shaft is coaxially fixed with the fan impeller to adapt to the installation requirements of ultra-thin top spaces and to stabilize the output airflow.

[0051] The ultra-thin centrifugal fan 3 uses a low-speed, high-airflow drive motor with a compact integrated assembly structure, which is suitable for ultra-thin space constraints at the top. The motor and impeller are fixed coaxially to reduce transmission losses, stabilize the output airflow, reduce operating noise, and improve the comfort of using the equipment.

[0052] Furthermore, the two ends of the double-layer pipe structure 21 are sealed to the refrigeration circuit pipe, and the interlayer space of the double-layer pipe structure 21 is connected to the heat exchange air duct 221, so that the circulating airflow can fully contact the aluminum heat sink 23 and enhance heat exchange.

[0053] The double-layer pipeline structure 21 is sealed at both ends to the refrigeration circuit, which can ensure the sealing of the refrigeration cycle and prevent refrigerant leakage; the interlayer space is connected to the heat exchange air duct 221, so that the circulating airflow can fully contact the aluminum fin heat sink 23, extend the heat exchange path, strengthen the heat exchange process, and improve the overall refrigeration efficiency.

[0054] When using the ultra-thin air-cooled structure of the present invention, the installation and deployment are as follows: the evaporator 2 is fixedly installed at the preset position at the top rear of the inner tank 1 to ensure that the installation is firm and the position is accurate; the ultra-thin centrifugal fan 3, volute air duct 4, and fan cover 5 integrated assembly are installed at the top front of the inner tank 1, and the positioning and fixing are completed by the panel 22 to ensure that the fan faces the air supply direction of the evaporator 2; the baffle plate 6 is snapped into the corresponding position of the panel 22 by the side buckle to ensure that the sealing structure 62 fits the outer wall of the fan cover 5, and the overall installation of the ultra-thin air-cooled structure is completed.

[0055] After the equipment is installed, start the refrigeration system for debugging: turn on the ultra-thin centrifugal fan 3, and use the volute air duct 4 and the flow guiding structure 41 to regulate the airflow direction. The airflow output by the fan is drawn from below and then sent to the evaporator 2. Check the sealing status of the baffle plate 6 and the unobstructedness of the drain hole to confirm that there is no air leakage or blockage. Check the airflow status of the heat exchange air duct 221 of the evaporator 2 to ensure that the airflow passes evenly through the double-layer pipe structure 21 and the aluminum heat sink 23. After debugging, it will enter the normal working state.

[0056] Entering the formal working stage, the refrigeration system starts to operate: the evaporator 2 absorbs heat to achieve refrigeration, the ultra-thin centrifugal fan 3 continuously delivers airflow, and the airflow is guided by the volute air duct 4 and blown directionally towards the evaporator 2; the baffle plate 6 blocks lateral air leakage and forces the airflow through the interior of the evaporator 2, improving the airflow utilization rate; the double-layer pipeline structure 21 works in conjunction with the aluminum fin heat sink 23 to increase the heat exchange area, enhance heat conduction, and complete efficient heat exchange.

[0057] During operation, the condensate produced by the evaporator 2 flows to the baffle plate 6 under the action of gravity and is quickly discharged through the bottom drain hole and the guide slope to avoid the condensate from accumulating and freezing and blocking the air duct; the flow equalization plate 222 evenly distributes the airflow at the outlet of the heat exchange air duct 221, so that the airflow is evenly delivered to the inside of the display cabinet, ensuring uniform temperature distribution inside the cabinet and achieving stable cooling.

[0058] After the equipment has finished running, turn off the power to the refrigeration system and the ultra-thin centrifugal fan 3. After the equipment has completely stopped, if maintenance is required, press the buckle of the baffle plate 6 directly to quickly remove the baffle plate 6 and clean and maintain the fan, evaporator 2 and air duct. After maintenance, simply re-fasten the baffle plate 6. The entire equipment operation process is now complete.

[0059] Finally, it should be noted that the electronic components in the ultra-thin centrifugal fan 3 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin air-cooled structure, characterized in that: The device includes an inner liner (1), an evaporator (2), an ultra-thin centrifugal fan (3), a volute air duct (4), a fan cover (5), and a baffle plate (6). The evaporator (2) is located at the top rear of the inner liner (1), and the ultra-thin centrifugal fan (3) is located at the top front of the inner liner (1). The ultra-thin centrifugal fan (3) is equipped with a volute air duct (4) and draws air from below to deliver air to the evaporator (2). The fan cover (5) is installed on the outside of the ultra-thin centrifugal fan (3), and the baffle plate (6) is installed on the upper part of the ultra-thin centrifugal fan (3) to reduce wind power loss and force airflow through the interior of the evaporator (2).

2. The ultra-thin air-cooled structure according to claim 1, characterized in that: The evaporator (2) has an ultra-thin structure and adopts a double-layer pipe structure (21). A panel (22) is installed on the outside of the evaporator (2). The ultra-thin centrifugal fan (3) is installed on the panel (22). A heat exchange air duct (221) is formed between the double-layer pipe structure (21) and the panel (22). An aluminum fin heat sink (23) is installed on the double-layer pipe structure (21). The aluminum fin heat sink (23) is used to increase the heat exchange area and improve the heat exchange efficiency.

3. The ultra-thin air-cooled structure according to claim 1, characterized in that: The volute air duct (4) is integrated with the ultra-thin centrifugal fan (3). The inner wall of the volute air duct (4) is provided with a flow guiding structure (41). The flow guiding structure (41) is used to guide the airflow, reduce wind resistance and improve the air volume output capacity.

4. The ultra-thin air-cooled structure according to claim 1, characterized in that: The bottom of the wind deflector (6) is provided with a drain hole, which is used to quickly drain condensate and prevent condensate from accumulating and freezing in a localized area.

5. The ultra-thin air-cooled structure according to claim 2, characterized in that: The pipes of the double-layer pipe structure (21) are arranged in parallel, and the aluminum heat sink (23) is arranged in an array and fixedly connected to the double-layer pipe structure (21) to ensure that the airflow passes through the heat exchange duct (221) evenly.

6. The ultra-thin air-cooled structure according to claim 3, characterized in that: The ultra-thin centrifugal fan (3) is equipped with a low-speed, high-volume drive motor. The drive motor is integrated with the fan body and is suitable for installation in the ultra-thin space at the top.

7. The ultra-thin air-cooled structure according to claim 2, characterized in that: A flow equalization plate (222) is provided on the side of the panel (22) near the outlet of the heat exchange air duct (221), and the flow equalization plate (222) is arranged at equal intervals to form a number of uniform air outlets.

8. The ultra-thin air-cooled structure according to claim 1, characterized in that: The wind deflector (6) is provided with a sealing structure (62) on its side. The sealing structure (62) fits the outer wall of the fan cover (5) to block lateral air leakage and improve airflow utilization.

9. The ultra-thin air-cooled structure according to claim 2, characterized in that: The two ends of the double-layer pipeline structure (21) are connected to the refrigeration circuit pipeline. The interlayer space of the double-layer pipeline structure (21) is matched with the heat exchange air duct (221) so that the circulating airflow can fully contact the aluminum heat sink (23) and enhance heat exchange.

10. The ultra-thin air-cooled structure according to claim 2, characterized in that: The side of the wind deflector (6) is engaged with the panel (22) by a snap fastener.

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