Cooling laminar flow mechanism of tunnel drying oven

Abstract

The embodiment of the utility model provides a cooling laminar flow mechanism of a tunnel oven. The cooling laminar flow mechanism comprises an oven body; the air inlet component comprises an impeller assembly and a fan cover device, the air inlet component is arranged in the box body and is close to the top of the box body, and the impeller assembly is arranged in the fan cover device; the high-efficiency filter is arranged on one side, far away from the top of the box body, of the fan cover component; the exhaust device comprises an exhaust fan and an exhaust pipeline, the exhaust device is arranged at the bottom of the box body, an air inlet of the exhaust fan is connected with the cavity in the box body, one end of the exhaust pipeline is connected with an air outlet of the exhaust fan, and the other end of the exhaust pipeline is connected with the atmosphere. According to the embodiment of the invention, the impeller assembly is arranged in the fan cover device, and the fan cover device is favorable for forming uniform and stable laminar flow to replace a volute, so that the structure is more compact, and the height and the size of the box body are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine ovens, in particular to a cooling laminar flow mechanism of a tunnel oven. Background Art

[0002] A tunnel oven is a drying device widely used in industries such as food and medicine, mainly used to remove moisture, harmful microorganisms, bacteria, etc. in the outer packaging (such as glass containers, metal containers, etc.) to ensure its stability during storage and transportation. In a tunnel oven, the cooling laminar flow mechanism is a key component. After the container has been dried and heated, it can quickly and evenly reduce the temperature of the containers in the oven, thereby ensuring that the performance, appearance, and quality of the containers are not affected by overheating. In the vortex shell fan used in the cooling mechanism, due to the differences in the shape and size of the vortex shell, it will directly change the flow path and velocity distribution of the air flow, resulting in uneven air flow distribution and unable to form an ideal cooling air flow, thus leading to poor cooling effect. At the same time, the existing cooling laminar flow mechanism often has the disadvantages of large volume and heavy weight in terms of structural design, increasing the transportation cost and operation difficulty, and seriously restricting the reasonable layout of the site. Summary of the Utility Model

[0003] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, the embodiment of the utility model provides a cooling laminar flow mechanism of a tunnel oven.

[0004] Specifically, on the one hand, the embodiment of the utility model provides a box body; an air inlet component, including an impeller assembly and a wind hood device, the air inlet component is arranged in the box body and close to the top of the box body, and the impeller assembly is arranged in the wind hood device. A high-efficiency filter is arranged on one side of the wind hood component away from the top of the box body. An exhaust device, including an exhaust fan and an exhaust duct, the exhaust device is arranged at the bottom of the box body, the air inlet of the exhaust fan is connected to the inner cavity of the box body, one end of the exhaust duct is connected to the air outlet of the exhaust fan, and the other end is connected to the atmosphere.

[0005] In the embodiment of the present application, the box body includes a first side surface, and the exhaust duct has a leading-out section extending along the first side surface of the box body to the top of the box body.

[0006] In the embodiment of the present application, the cooling laminar flow mechanism further includes an outer shell, which encloses a space with the first side surface of the box body, the exhaust duct is located inside the space, and the space is communicated with the atmosphere.

[0007] In the embodiment of the present application, the box body includes a first side surface, and the cooling laminar flow mechanism further includes a primary filter, and the primary filter is arranged on the first side surface of the box body.

[0008] In an embodiment of the present application, the impeller assembly is disposed on the top of the air hood device.

[0009] In an embodiment of the present application, the impeller assembly includes a wind guide cylinder, a wind guide cylinder mounting plate, and an impeller; the impeller is disposed on a side of the wind guide cylinder away from the wind guide cylinder mounting plate; the wind guide cylinder is fixed to the wind guide cylinder mounting plate, and the wind guide cylinder mounting plate is connected to the top of the air hood device.

[0010] In an embodiment of the present application, the impeller assembly further includes a motor and a motor mounting bracket; the motor is fixed on the motor mounting bracket and is disposed on a side of the impeller away from the top of the box body; an output end of the motor is connected to the impeller.

[0011] In an embodiment of the present application, the air hood device includes an air hood body and an air hood mounting bracket; the air hood body includes a plurality of side walls and further includes an extension plate extending from the bottom of the side walls toward the middle of the box body, and the air hood mounting bracket is fixed to the extension plate of the air hood body.

[0012] In an embodiment of the present application, the cooling laminar flow mechanism further includes a lifting mechanical structure, one end of the lifting mechanical structure is connected to the air hood device, and the other end is connected to the box body; the lifting mechanical structure is used to drive the air hood body to approach or move away from the high-efficiency filter.

[0013] In an embodiment of the present application, one end of the lifting mechanical structure is connected to the air hood device through the air hood mounting bracket.

[0014] As can be seen from the above, the above technical features of the present utility model may have one or more of the following beneficial effects:

[0015] 1. In the box body of the cooling laminar flow mechanism, the impeller assembly is built in the air hood device, and the air hood device is used to replace the function of the volute, so that the structure is more compact than the volute structure and the air flow distribution is optimized, which can effectively reduce the height and size of the box body and save the installation space.

[0016] 2. The air hood device is a through structure at the upper and lower ends and is combined with the wind guide cylinder of the impeller assembly to guide the air flow to flow along a predetermined path and at the same speed, so that the air flow can form a highly uniform and stable laminar flow when passing through the air hood device. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic structural diagram of a cooling laminar flow mechanism provided by an embodiment of the present application for a tunnel oven;

[0019] Figure 2 Top view structural diagram of a tunnel oven provided by an embodiment of the present application;

[0020] Figure 3 Side view of a cooling laminar flow mechanism of a tunnel oven provided by an embodiment of the present application;

[0021] Figure 4 Schematic structural diagram of an air inlet assembly of a cooling laminar flow mechanism of a tunnel oven provided by an embodiment of the present application;

[0022] Figure 5 Schematic structural diagram of an exhaust device of a cooling laminar flow mechanism of a tunnel oven provided by an embodiment of the present application.

[0023]

Description of the reference numerals

[0024] 1: Cooling laminar flow mechanism; 12: Air inlet assembly; 121: Air hood device; 1211: Air hood body; 1212: Air hood mounting frame; 1213: Extension plate; 122: Impeller assembly; 1221: Air guide cylinder; 1222: Impeller; 1223: Air guide cylinder mounting plate; 1224: Motor; 1225: Motor mounting frame; 13: Box body; 14: High-efficiency filter; 15: Exhaust device; 151: Exhaust fan; 152: Exhaust duct; 16: Primary filter; 17: Lifting mechanical structure; 18: Outer shell. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments described in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, top, bottom) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly. In addition, the term "vertical" involved in the embodiments of the invention and the claims refers to an included angle of 90° between two elements or a deviation of -5° to +5°, and the term "parallel" involved refers to an included angle of 0° between two elements or a deviation of -5° to +5°.

[0027] In the embodiments of the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0028] A tunnel oven provided by an embodiment of the present utility model includes a cooling laminar flow mechanism 1, and further includes a preheating laminar flow mechanism, a heating laminar flow mechanism, and a material conveying device that are connected in sequence.

[0029] The working principle of the tunnel oven is to place the object to be dried at the feed inlet of the material conveying device. First, it passes through the preheating laminar flow mechanism to preliminarily heat the container. Secondly, it enters the heating laminar flow mechanism to heat the container to a set high temperature to achieve the effect of drying and sterilization. Finally, it enters the cooling laminar flow mechanism 1 to quickly and evenly reduce the temperature of the container. Finally, the dried container is output from the discharge outlet of the material conveying device.

[0030] Reference Figure 1 As shown, the cooling laminar flow mechanism 1 of a tunnel oven provided by this embodiment includes a box body 13, an air inlet assembly 12, a high-efficiency filter 14, and an exhaust device 15.

[0031] Specifically, the air inlet assembly 12 includes an impeller assembly 122 and a wind hood device 121. The air inlet assembly 12 is arranged inside the box body 13 and close to the top of the box body 13, and the impeller assembly 122 is arranged inside the wind hood device 121. Exemplarily, the impeller assembly 122 can be a non-vortex shell fan, the wind hood device 121 can be a frame structure made of stainless steel with upper and lower through holes, and the box body 13 can be a frame structure made of stainless steel.

[0032] The high-efficiency filter 14 is arranged on one side of the wind hood device 121 far from the top of the box body 13; specifically, it is located below the air inlet assembly 12 and close to the wind hood device 121. Exemplarily, the high-efficiency filter 14 can be made of fiberglass and is surrounded by stainless steel on all sides. It should be noted that the high-efficiency filter 14 is a disposable product, and its service life is one and a half to two years. It needs to be replaced in time after reaching the service life to maximize the effect of the high-efficiency filter 14.

[0033] The exhaust device 15 includes an exhaust fan 151 and an exhaust duct 152. The exhaust device 15 is arranged at the bottom of the box body 13. The air inlet of the exhaust fan 151 is connected to the inner cavity of the box body 13, one end of the exhaust duct 152 is connected to the air outlet of the exhaust fan 151, and the other end is connected to the atmosphere. Specifically, reference Figure 5As shown, the horizontal section of the exhaust duct 152 is connected to the air outlet of the exhaust fan 151 and extends along the direction of the air outlet of the exhaust fan 151 to the side of the box body 13. The vertical section of the exhaust duct 152 extends from the bottom of the box body 13 along the side of the box body 13 towards the air inlet assembly 12, and the air outlet of the exhaust duct 152 is connected to the atmosphere. Exemplarily, the exhaust fan 151 can be a centrifugal exhaust fan; the exhaust duct 152 can be a circular duct, and the circular shape can reduce wind resistance and make the air flow more smoothly. The material can be stainless steel, which has good corrosion resistance and strength.

[0034] In this embodiment, arranging the exhaust device 15 at the bottom of the box body 13 of the cooling laminar flow mechanism 1 helps to quickly discharge heat. A large amount of heat will be generated during the working process, and the exhaust device 15 can quickly extract the hot air in the cooling laminar flow mechanism 1, accelerating the dissipation of heat, thereby improving the cooling efficiency. Secondly, it can optimize the air flow organization. The exhaust device 15 can make the air flow in the cooling laminar flow mechanism 1 more uniform and stable, reducing the disorder and vortex of the air flow, and ensuring the consistency of the cooling effect. In addition, good exhaust can reduce the temperature and humidity inside the cooling laminar flow mechanism 1, reduce the failures and damages caused by high temperature and high humidity of the equipment, and extend the service life of the equipment.

[0035] Refer to Figure 1 As shown, in the embodiment of the present application, the box body 13 includes a first side surface, and the exhaust duct 152 has a lead-out section extending along the first side surface of the box body 13 to the top of the box body 13. Specifically, one end of the lead-out section (vertical section) of the exhaust duct 152 is connected to the elbow at the bottom side of the box body 13, and the other end is connected to the atmosphere; the exhaust duct 152 is adjacent to the first side surface of the box body 13 but maintains a certain distance. Exemplarily, the exhaust duct 152 is made of stainless steel, and there is a heat-insulating material on the outer layer to prevent heat diffusion from heating the indoor air, increasing the load of the air-conditioning system, and at the same time preventing personnel from being scalded.

[0036] In this embodiment, since the exhaust duct 152 extends along the side of the box body 13, it will not occupy too much additional lateral space. Especially in a working environment with limited space, this design can better plan and utilize the site; secondly, the exhaust duct 152 can increase its own stability by relying on the support of the box body 13, reducing the vibration and shaking of the exhaust duct 152 during operation. When the exhaust device 15 operates for a long time, it can reduce the risk of loosening or damage of the connection part due to the shaking of the pipeline.

[0037] In the embodiment of the present application, refer to Figure 1As shown, the box body 13 includes a first side surface, and the cooling laminar flow mechanism 1 further includes a primary filter 16, and the primary filter 16 is arranged on the first side surface of the box body 13. Specifically, the first side surface of the box body 13 includes the air inlet of the box body 13, and the primary filter 16 is arranged at the air inlet of the box body 13 and is adjacent to the vertical exhaust duct 152 of the box body 13. Exemplarily, the primary filter 16 can be made of non-woven fabric.

[0038] In this embodiment, since both the primary filter 16 and the exhaust duct 152 are arranged on the first side surface of the box body 13, the operator can operate more concentratedly during installation, reducing the complexity and time cost of installation. When maintaining and replacing the filter, it is also easier to access the exhaust duct 152 at any time for maintenance and troubleshooting, without having to operate at different positions of the box body 13. Secondly, this layout method can effectively utilize the space on the side surface of the box body 13, without occupying too much other space, making the entire system more compact and reasonable during installation, so that in a equipment room with limited space, the space can be saved to the greatest extent, leaving more space for other equipment or passages.

[0039] In the embodiment of the present application, refer to Figure 2 As shown, the cooling laminar flow mechanism 1 further includes an outer shell 18, which encloses a space with the first side surface of the box body 13. The exhaust duct 152 is located inside the space, and the space is communicated with the atmosphere. Specifically, the exhaust duct 152 is wrapped tightly against the first side surface of the box body 13 by the outer shell 18, and an air outlet of the duct is left at the top of the box body 13 to connect with the atmosphere. The air outlet of the duct is rectangular in shape; and the primary filter 16 is also located in the enclosed space. Exemplarily, the outer shell 18 can be made of stainless steel and adopts a rectangular frame structure to enclose and wrap the exhaust duct 152.

[0040] In this embodiment, the outer shell 18 is used to enclose and wrap both the exhaust duct 152 and the primary filter 16 to form an integral body with the box body 13, making the overall box body 13 look more regular and orderly, and improving the overall image of the equipment. The enclosed outer shell 18 can prevent the operator from accidentally touching the hot exhaust duct 152 or the surface of the box body 13 during the working process, avoiding safety accidents such as scalding. The outer shell 18 can form a heat insulation layer, reducing the heat dissipated from the box body 13 and the exhaust duct 152 to the surrounding environment, improving the energy utilization efficiency and reducing energy consumption. Furthermore, the enclosed structure can block the noise generated during the operation of the exhaust duct 152 to a certain extent, improving the acoustic conditions of the working environment and reducing the impact of noise on the operator. And it can block external factors such as dust and moisture from entering the exhaust duct 152 and the box body 13, reducing the risk of corrosion and damage to the equipment and extending the service life of the equipment.

[0041] In the embodiment of the present application, refer toFigure 3 As shown, the impeller assembly 122 is disposed at the top of the wind hood device 121. Specifically, the wind hood device 121 is built inside the box body 13 and near the top of the box body 13, and the impeller assembly 122 is inside the wind hood device 121 and near the top of the wind hood device 121. Exemplarily, the wind hood device 121 can be made of stainless steel.

[0042] In this embodiment, the design of the wind hood device 121 helps to concentrate the wind force, improve the distribution uniformity of the cooling air flow, and thus improve the air flow efficiency inside the box body 13. The impeller assembly 122 effectively controls and guides the air flow at the top position, making the air flow spread downward more evenly, which is beneficial to form a more stable and uniform laminar flow inside the wind hood device 121 and improve the cooling or ventilation effect. At the same time, being at the top position is more conducive to the operator's daily maintenance, cleaning and troubleshooting work.

[0043] In the embodiment of the present application, refer to Figure 4 As shown, the impeller assembly 122 includes a wind guide cylinder 1221, a wind guide cylinder mounting plate 1223 and an impeller 1222; the impeller 1222 is disposed on the side of the wind guide cylinder 1221 away from the wind guide cylinder mounting plate 1223; the wind guide cylinder 1221 is fixed to the wind guide cylinder mounting plate 1223 and the wind guide cylinder mounting plate 1223 is connected to the top of the wind hood device 121. Specifically, the wind guide cylinder 1221 is fixed to the wind guide cylinder mounting plate 1223 and the whole is disposed at the top of the wind hood device 121, so that the air flow enters the impeller assembly 122 from the wind guide cylinder 1221. Exemplarily, the wind guide cylinder 1221 is a conical shape with a large inlet and a small outlet and can be made of stainless steel.

[0044] In this embodiment, the wind guide cylinder mounting plate 1223 not only provides a stable support for the wind guide cylinder 1221, but also ensures the reliability of the connection between the entire impeller assembly 122 and the top of the wind hood device 121. This stable connection method can withstand the vibration and stress generated by the high-speed rotation of the impeller 1222, effectively extends the service life of the impeller assembly 122, and reduces the risk of failures caused by loosening or unstable connection. Since there is no connection gap between the top of the wind hood device 121 and the wind guide cylinder 1221, the air flow can pass through more smoothly, reducing the energy loss caused by leakage and improving the working efficiency of the impeller assembly 122. The installation position of the impeller 1222 enables the impeller 1222 to make full use of the air guiding effect of the wind guide cylinder 1221 during operation, thereby improving the working efficiency of the impeller 1222; which means that under the same power input, the impeller assembly 122 can generate a stronger and more stable air flow and achieve a better cooling effect.

[0045] In the embodiment of the present application, refer to Figure 4As shown, the impeller assembly 122 further includes a motor 1224 and a motor mounting bracket 1225; the motor 1224 is fixed on the motor mounting bracket 1225 and is disposed on a side of the impeller 1222 away from the top of the box body 13; the output end of the motor 1224 is connected to the impeller 1222. Specifically, the motor 1224 is fixed on the motor mounting bracket 1225 and is electrically connected to the impeller 1222 to form an integral body. Among them, the motor 1224 and the motor mounting bracket 1225 are also built into the air duct body 1211. Exemplarily, the motor mounting bracket 1225 can be made of stainless steel, and the motor 1224 can be an AC asynchronous motor.

[0046] In this embodiment, the impeller assembly 122 includes an air duct 1221, an air duct mounting plate 1223, a motor 1224, a motor mounting bracket 1225, and an impeller 1222. The air duct device 121 is used to replace the volute of a traditional volute fan, and the structure is more compact, having more advantages in space utilization, especially suitable for occasions with limited installation space; inside some narrow equipment, the impeller assembly 122 can be easily installed, while a traditional fan may be difficult to adapt due to its large volume. The impeller assembly 122 is built into the air duct device 121 and has no traditional volute structure, so no eddy current is generated inside the fan, making the air flow more uniform, the air flow more natural and smooth, reducing the air flow disorder and vortex, and improving the efficiency and performance of the fan.

[0047] In the embodiment of the present application, refer to Figure 4 As shown, the air duct device 121 includes an air duct body 1211 and an air duct mounting bracket 1212; the air duct body 1211 includes a plurality of side walls, and further includes an extension plate 1213 extending from the bottom of the side walls towards the middle of the box body 13, and the air duct mounting bracket 1212 is fixed to the extension plate 1213 of the air duct body 1211. Specifically, the side walls on both sides of the air duct body 1211 extend towards the middle of the box body 13 at both the upper and lower ends, forming a cavity structure that penetrates up and down, and the extension plates 1213 are all fixed to the air duct mounting bracket 1212.

[0048] In the embodiment of the present application, the connection between the extension plate 1213 and the air duct mounting bracket 1212 makes the combination between the air duct body 1211 and other components more firm, capable of effectively resisting the vibration and external force generated during the operation of the impeller assembly 122, and reducing the possibility of component loosening or deformation; the cavity structure that penetrates up and down provides a smooth channel for the air flow, reducing the air flow resistance and energy loss, enabling the impeller assembly 122 to transport gas more efficiently.

[0049] Refer to Figure 3As shown, in the embodiment of the present application, the cooling laminar flow mechanism 1 further includes a lifting mechanical structure 17. One end of the lifting mechanical structure 17 is connected to the wind hood device 121, and the other end is connected to the box body 13. The lifting mechanical structure 17 is used to drive the wind hood body 1211 to approach or move away from the high-efficiency filter 14. Specifically, the lifting mechanical structures 17 are respectively arranged on both sides of one end of the wind hood body 1211, and one end is connected to the wind hood mounting frame 1212, and the other end is connected to the box body 13. This lifting mechanical structure 17 can drive the wind hood body 1211 to form a certain lifting height, and the lifting height is 0 mm to 30 mm. The lifting height is greater than 0 mm. When the lifting height is 0 mm, the wind hood body 1211 is pressed against the high-efficiency filter 14, and the high-efficiency filter 14 can be replaced when it is raised to about 10 mm. Exemplarily, the lifting mechanical structure 17 can be manual or electric.

[0050] In the embodiment of the present application, one end of the lifting mechanical structure 17 is connected to the wind hood device 121 through the wind hood mounting frame 1212.

[0051] In this embodiment, the lifting mechanical structure 17 can easily drive the movement of the wind hood body 1211, enabling the operator to approach the high-efficiency filter 14 without having to laboriously disassemble complex structures, greatly simplifying the operation process of replacing the filter, saving time and manpower. Secondly, it avoids the heavy work of manual climbing or using large tools for disassembly and installation, reducing the labor intensity of the operator and the possible safety risks. Moreover, it can timely replace the high-efficiency filter 14 that has reached the service life or is damaged, ensuring that a good air filtration effect is always maintained in the oven and improving product quality. It can also be adjusted according to different specifications of the high-efficiency filter 14, increasing the versatility and compatibility of the equipment.

[0052] In addition, it can be understood that the foregoing various embodiments are only exemplary descriptions of the present invention. On the premise that the technical features do not conflict, the structures are not contradictory, and the invention purpose of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0053] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0054] The unit described as a separation component may or may not be physically separated. The component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling laminar flow mechanism (1) for a tunnel oven, characterized in that: include: Box body (13); An air inlet component (12) comprising an impeller assembly (122) and a wind shield device (121), wherein the air inlet component (12) is arranged in the box body (13) and close to the top of the box body (13), and the impeller assembly (122) is arranged in the wind shield device (121); A high efficiency filter (14) is arranged on a side of the wind shield device (121) away from the top of the box body (13); An exhaust device (15) comprises an exhaust fan (151) and an exhaust duct (152); the exhaust device (15) is arranged at the bottom of the box (13); an air inlet of the exhaust fan (151) is connected to the cavity inside the box (13); one end of the exhaust duct (152) is connected to the air outlet of the exhaust fan (151), and the other end is connected to the atmosphere.

2. The cooling laminar flow mechanism (1) according to claim 1, characterized in that: The box body (13) comprises a first side surface, and the exhaust duct (152) comprises an outlet section extending along the first side surface of the box body (13) to the top of the box body (13).

3. The cooling laminar flow mechanism (1) according to claim 2, characterized in that: The cooling laminar flow mechanism (1) also includes an outer shell (18) which is enclosed with the first side surface of the box body (13) to form a space, the exhaust duct (152) is located inside the space, and the space is connected to the atmosphere.

4. The cooling laminar flow mechanism (1) according to claim 3, characterized in that: The cooling laminar flow mechanism (1) further comprises a primary filter (16), wherein the primary filter (16) is arranged on the first side surface of the box body (13).

5. The cooling laminar flow mechanism (1) according to claim 1, characterized in that: The impeller assembly (122) is arranged on the top of the wind shield device (121).

6. The cooling laminar flow mechanism (1) according to claim 1, characterized in that: The impeller assembly (122) comprises an air guide tube (1221), an air guide tube mounting plate (1223) and an impeller (1222); the impeller (1222) is arranged on a side of the air guide tube (1221) away from the air guide tube mounting plate (1223); the air guide tube (1221) is fixed to the air guide tube mounting plate (1223), and the air guide tube mounting plate (1223) is connected to the top of the wind cover device (121).

7. The cooling laminar flow mechanism (1) according to claim 1, characterized in that: The impeller assembly (122) further comprises a motor (1224) and a motor mounting frame (1225); the motor (1224) is fixed on the motor mounting frame (1225) and is arranged on a side of the impeller (1222) away from the top of the box body (13); and the output end of the motor (1224) is connected to the impeller (1222).

8. The cooling laminar flow mechanism (1) according to claim 1, characterized in that: The wind shield device (121) comprises a wind shield body (1211) and a wind shield mounting frame (1212); the wind shield body (1211) comprises a plurality of side walls, and also comprises an extension plate (1213) extending from the bottom of the side wall toward the middle of the box body (13); the wind shield mounting frame (1212) is fixed to the extension plate (1213) of the wind shield body (1211).

9. The cooling laminar flow mechanism (1) according to claim 8, characterized in that: The cooling laminar flow mechanism (1) further comprises a lifting mechanical structure (17), one end of the lifting mechanical structure (17) being connected to the wind hood device (121), and the other end being connected to the box body (13); the lifting mechanical structure (17) is used to drive the wind hood body (1211) to move closer to or away from the high-efficiency filter (14).

10. The cooling laminar flow mechanism (1) according to claim 9, characterized in that: One end of the lifting mechanical structure (17) is connected to the wind shield device (121) via the wind shield mounting frame (1212).

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