Air uniformizing box and coating drying oven
By designing a uniform bellows in the diaphragm coating machine oven, and using the flow guide components to uniformly guide the inlet air flow, the problem of uneven air outlets of each air duct is solved, and the drying efficiency and product quality are improved.
Patent Information
- Application Number
- CN202323485324.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The air duct design of the existing diaphragm coating machine oven is uneven due to the uneven air outlets of each air duct, which leads to the uneven physical drying process of the diaphragm, which easily leads to surface curling and rupture, which reduces product quality.
A uniform bellows are designed, including an air duct cavity and a flow guide assembly inside the hull, through the first flow guide assembly and the second flow guide assembly, the inlet air flow is uniformly directed to the tail end, and the eddy current and countercurrent are eliminated through the third flow guide assembly The phenomenon ensures the uniformity of air outlets.
The uniformity of air outlets and the consistency of air outlets are improved to ensure the uniformity and quality of the diaphragm surface of the drying product.
Smart Images
Figure CN222174727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of uniform air flow, in particular to a uniform air flow box and a coating oven. Background Art
[0002] Coating is an important process in the production of lithium-ion battery separators. The process is to evenly and continuously or intermittently coat the prepared slurry on the substrate. After the separator is coated, the solvent in the slurry needs to be evaporated by heat drying through a drying tunnel to attach solid particles to the surface of the separator. During the hot drying process, the wind speed and wind direction of the hot drying have an important influence on the drying efficiency and the surface defects of the separator. The more uniform the drying effect, the better the quality of the product produced.
[0003] The current air duct design of the diaphragm coating machine oven makes the physical drying process of the diaphragm uneven due to the uneven air outlets of the air duct, which is prone to surface defects such as curling and cracking, making the coating of the diaphragm uneven after drying, resulting in a decrease in product quality. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a uniform air box and a coating oven, wherein the uniform air box can improve the uniformity of air outlets and solve the problem of uneven air outlets of the air duct.
[0005] In order to solve the above technical problems, the technical solution used in the utility model is:
[0006] The utility model discloses a wind box, comprising a hull, wherein the hull has an air duct cavity extending from the head end to the tail end thereof, wherein the side panels of the hull enclosing the air duct cavity and arranged from the head end to the tail end thereof include adjacent first side panels and second side panels; the first side panel is provided with a plurality of air outlets spaced apart from the head end to the tail end of the hull, the second side panel is provided with an air inlet away from the tail end of the hull, and the section of the air inlet facing the first side panel includes at least one of the air outlets;
[0007] The first guide component and the second guide component are arranged at the air duct cavity of the hull facing the air inlet. The first guide component is used to redirect the airflow entering from the air inlet to flow evenly toward the rear end of the hull, and the second guide component is used to cooperate with the first guide component to increase the amount of air flowing close to the first side panel.
[0008] Preferably, the first guide assembly includes a plurality of first guide plates spaced apart from one end of the air inlet to the other end, the first guide plate including a first straight plate portion and a first arc plate portion, the first straight plate portion being close to the air inlet and facing the air inlet, and the end of the first straight plate portion away from the air inlet being smoothly connected to the first arc plate portion, so that the first arc plate portion bends toward the tail end of the hull.
[0009] Further preferably, the first side plate is provided with a first guide plate at both ends of the air outlet in the section facing the air inlet;
[0010] The second air guide component includes a second straight plate portion and a second arc plate portion, and the second straight plate portion and the second arc plate portion are both located between the first air guide plates at both ends and connected to the first air guide plates at both ends; wherein, the second arc plate portion is arranged closer to the first side plate relative to the second straight plate portion, and the second arc plate portion bends from the air inlet toward the first side plate, and the second straight plate portion is inclined from its end away from the air inlet toward the second arc plate portion, and an air duct is formed by spacing an end of the second straight plate portion close to the air inlet from the second arc plate portion at a preset distance, and the airflow entering from the air inlet is guided to the first side plate through the air duct.
[0011] Preferably, there is at least one air outlet located between the bow end of the hull and the air inlet, and a third guide component is also provided at the air duct cavity of the hull facing the air inlet. The third guide component is located on the side of the first guide component close to the bow end of the hull, and is used to redirect the airflow entering from the air inlet to flow evenly toward the bow end of the hull.
[0012] Further preferably, the third guide assembly includes at least one third guide plate, the third guide plate includes a third straight plate portion and a third curved plate portion, the third straight plate portion is close to the air inlet and directly faces the air inlet, and one end of the third straight plate portion away from the air inlet is smoothly connected to the third curved plate portion so that the third curved plate portion bends toward the head end of the hull.
[0013] Preferably, the hull is in a wedge shape with a high front end and a low rear end, and the height ratio between the front and rear ends of the hull is 5:11.
[0014] Preferably, a connecting piece protruding out of the hull is provided at the air inlet, and the connecting piece is used to connect to an air inlet pipe.
[0015] Preferably, the air outlet cover is provided with a first mesh plate, and the first mesh plate is detachably connected to the first side plate through U-shaped rib plates provided on both sides thereof;
[0016] The U-shaped rib plate includes a bottom plate and an A plate and a B plate respectively connected to two sides of the bottom plate, wherein the bottom plate is in contact with the first side plate.
[0017] Further preferably, the A plate is located on a side away from the air outlet, the B plate is located on a side close to the air outlet, and a height of the A plate is smaller than a height of the B plate.
[0018] Further preferably, a second mesh plate is provided on the U-shaped rib plate corresponding to the air outlet located at the bow end and the tail end of the hull, and the second mesh plate is spaced apart from the first mesh plate by a preset distance.
[0019] Preferably, the hull is provided with an infrared temperature measuring mechanism, and the infrared temperature measuring mechanism is used to monitor the surface temperature of the product.
[0020] Preferably, two temperature sensors are arranged in the air duct cavity of the hull at intervals along the direction from the head end to the tail end thereof, for monitoring the temperature of the wind in the wind uniforming box.
[0021] Another object of the present utility model is to provide a coating oven, comprising a wind nozzle, a blowing device and the aforementioned uniform air box, wherein the air outlet duct of the blowing device is connected to the air inlet of the uniform air box for conveying hot air to the uniform air box; the air outlet of the uniform air box is connected to the wind nozzle.
[0022] Compared with the prior art, the beneficial effects of the wind box described in the utility model are mainly reflected in:
[0023] The utility model provides a uniform wind box with a first guide component and a second guide component at the wind duct cavity facing the air inlet, wherein the first guide component can redirect the airflow entering from the air inlet to flow evenly toward the rear end of the hull, thereby ensuring the uniformity of air outlets from the air inlet to the rear end of the hull, and the second guide component cooperates with the first guide component to increase the amount of air intake flowing close to the first side panel, thereby improving the air outlet speed of the air outlet facing the air inlet, overcoming the defect that the air intake volume close to the first side panel is reduced due to the hole edge of the air inlet being not close to the first side panel, and causing the air outlet speed to be lower than that of other air outlets, thereby improving the consistency of the air outlet speed of each air outlet and the uniformity of the air outlet.
[0024] Compared with the prior art, the coating oven described in the utility model has the beneficial effects of the above-mentioned uniform wind box, and can ensure the uniformity of the wind entering each of the wind nozzles and the consistency of the wind speed, thereby improving the uniformity of the dried product diaphragm and the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.
[0026] Figure 1 A three-dimensional structure of a uniform air box provided in an embodiment of the utility model Figure 1 ;
[0027] Figure 2 A three-dimensional structure of a uniform air box provided in an embodiment of the utility model Figure 2 ;
[0028] Figure 3 Arrangement of the first flow guide component, the second flow guide component and the third flow guide component provided in the embodiment of the utility model Figure 1 ;
[0029] Figure 4 Arrangement of the first flow guide component, the second flow guide component and the third flow guide component provided in the embodiment of the utility model Figure 2 ;
[0030] Figure 5 for Figure 4 AA section view in;
[0031] Figure 6 for Figure 4 BB section view in;
[0032] Figure 7 A three-dimensional structure of a uniform air box provided in an embodiment of the utility model Figure 3 ;
[0033] Figure 8 A partial structural diagram of an air distribution box provided in an embodiment of the utility model;
[0034] Description of the drawings: hull 1, air duct cavity 2, first side panel 3, second side panel 4, first guide assembly 500, first guide plate 501, first straight plate portion 502, first arc plate portion 503, fourth straight plate portion 504, second guide assembly 600, second straight plate portion 601, second arc plate portion 602, fifth straight plate portion 603, third guide assembly 700, third guide plate 701, third straight plate portion 702, third arc plate portion 703, U-shaped rib plate 800, A plate 801, B plate 802, bottom plate 803, air outlet 5, air inlet 6, connecting piece 7, first mesh plate 8, second mesh plate 9, infrared temperature measuring mechanism 10, temperature sensor 11. DETAILED DESCRIPTION
[0035] The technical scheme of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model. In the present embodiments, it should be understood that the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.
[0036] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in this utility model are for illustrative purposes only.
[0037] This embodiment provides a uniform air box, such as Figure 1-8 As shown, it includes a hull 1, and the hull 1 has an air duct cavity 2 extending from its head end to its tail end, wherein the side panels of the hull 1 enclosing the air duct cavity 2 and arranged from its head end to its tail end include adjacent first side panels 3 and second side panels 4; the first side panel 3 is provided with a plurality of air outlets 5 at intervals from the head end to the tail end of the hull 1, and the second side panel 4 is provided with an air inlet 6 away from the tail end of the hull 1, and the air inlet 6 includes at least one air outlet 5 in a section facing the first side panel 3, and both the air outlet 5 and the air inlet 6 are connected to the air duct cavity 2;
[0038] A first guide component 500 and a second guide component 700 are provided at the air duct cavity 2 of the hull 1 facing the air inlet 6. The first guide component 500 is used to redirect the airflow entering from the air inlet 6 to flow evenly toward the rear end of the hull 1, and the second guide component 700 is used to cooperate with the first guide component 500 to increase the amount of air flowing close to the first side panel 3.
[0039] The utility model wind uniformity box is provided with a first flow guide component 500 and a second flow guide component 700 at the air duct cavity 2 facing the air inlet 6, wherein the first flow guide component 500 can redirect the airflow entering from the air inlet 6 to flow evenly backward to the rear end of the hull 1, thereby ensuring the uniformity and consistency of the air outlets 5 between the air inlet 6 and the rear end of the hull 1;
[0040] Usually, in order to reserve an installation position for the wind nozzle installed at each air outlet 5, the clear height of the air inlet 6 on the second side panel 4 is narrowed, resulting in a certain distance between the edge of the air inlet 6 and the first side panel 3. This will block part of the air volume from flowing to the air outlet 5 facing the air inlet 6, thereby affecting the air outlet speed of these air outlets 5. The utility model can increase the amount of air intake flowing close to the first side panel 3 through the cooperation of the second guide component 700 with the first guide component 500, thereby increasing the air outlet speed of the air outlet 5 facing the air inlet 6, overcoming the defect that the air intake volume close to the first side panel 3 is reduced due to the hole edge of the air inlet 6 not being close to the first side panel 3, and causing the air outlet speed to be lower than that of other air outlets 5, thereby improving the consistency of the air outlet speed of the air outlet 5 and the uniformity of the air volume.
[0041] In a specific embodiment, Figure 3 and Figure 4 As shown, the first guide assembly 500 includes a plurality of first guide plates 501 spaced apart from one end of the air inlet 6 to the other end, the first guide plate 501 includes a first straight plate portion 502 and a first curved plate portion 503, the first straight plate portion 502 is close to the air inlet 6 and directly faces the air inlet 6, specifically, in this embodiment, each first straight plate portion 502 is arranged perpendicular to the cross section of the air inlet 6; one end of the first straight plate portion 502 away from the air inlet 6 is smoothly transitionally connected to the first curved plate portion 503, so that the first curved plate portion 503 is bent toward the tail end of the hull 1 , so that an air duct flowing toward the rear end of the hull 1 can be formed between every two adjacent first guide plates 501. Specifically, in the present embodiment, the first straight plate portion 502 is a plane plate, and the first arc plate portion 503 is a circular arc plate, the center of which is located on one side of the rear end of the hull 1. Preferably, the first arc plate portion 503 is connected to a fourth straight plate portion 504 on one side of the rear end of the hull 1, and the fourth straight plate portion 504 on each first arc plate portion 503 is a plane plate, and the lengths may be the same or different, and are specifically set according to the wind volume and flow velocity to achieve the optimal uniform wind effect.
[0042] In a further preferred embodiment, Figures 3 to 6 As shown, a first guide plate 501 is provided at both ends of the air outlet 5 in the section of the first side plate 3 facing the air inlet 6;
[0043] The second air guide assembly 700 includes a second straight plate portion 601 and a second arc plate portion 602, and the second straight plate portion 601 and the second arc plate portion 602 are both located between the first air guide plates 501 at both ends and connected to the first air guide plates 501 at both ends; wherein the second arc plate portion 602 is arranged closer to the first side plate 3 relative to the second straight plate portion 601, and the second arc plate portion 602 is bent from the air inlet 6 to the first side plate 3, and the second straight plate portion 601 is inclined from its end away from the air inlet 6 to the second arc plate portion 602, and the second straight plate portion The end of 601 close to the air inlet 6 is spaced apart from the second arc plate portion 602 by a preset distance to form an air duct, and the airflow entering from the air inlet 6 is guided to the first side plate 3 through the air duct, wherein the second straight plate portion 601 is used to press the air volume into the air duct to ensure the uniformity of the air volume and the consistency of the air outlet speed within the entire length of the air outlet 5. The number and slope of the second straight plate portion 601 and the preset distance between the end close to the air inlet 6 and the second arc plate portion 602 can be set accordingly according to the air volume and flow rate of the specific air inlet 6. It should be noted that, corresponding to the different air inlet angles at the air inlet 6, the straight plate portion and the arc plate portion can also be increased accordingly, so as to achieve the optimal uniform air inlet of the air outlet 5 in the section directly facing the air inlet 6.
[0044] The second arc plate portion 602 of the present embodiment is an arc plate, and its center is on the same side as the first side plate 3. The second straight plate portion 601 is a flat plate. In the present embodiment, there are two air outlets 5 in the section facing the air inlet 6, and a fifth straight plate portion 603 is also provided at the air outlet 5 near the head end of the hull 1. The corresponding wind inlet angle of the present embodiment is preferably 10° to 80°. After simulation comparison, the present embodiment greatly improves the vortex and backflow phenomena at the tail end of the hull 1 by providing the first guide component 500 and the second guide component 700.
[0045] There is at least one air outlet 5 located between the head end of the hull 1 and the air inlet 6. Since eddy currents or even reverse currents are easily generated between the head end of the hull 1 and the air inlet 6, the uniformity of the air flow at the air outlet 5 will be affected. Therefore, in another preferred embodiment, as Figure 3 and Figure 4As shown, a third flow guide component 700 is also provided at the air duct cavity 2 of the hull 1 facing the air inlet 6. The third flow guide component 700 is located on the side of the first flow guide component 500 close to the head end of the hull 1, and is used to redirect the airflow entering from the air inlet 6 to flow evenly toward the head end of the hull 1. In a specific embodiment, the third flow guide component 700 includes at least one third flow guide plate 701, and the third flow guide plate 701 includes a third straight plate portion 702 and a third curved plate portion 703. The third straight plate portion 702 is close to the air inlet 6 and faces the air inlet 6. One end of the third straight plate portion 702 away from the air inlet 6 is smoothly connected to the third curved plate portion 703, so that the third curved plate portion 703 is bent toward the head end of the hull 1. In this embodiment, the vortex and backflow between the head end of the hull 1 and the air inlet 6 can be eliminated by providing the third flow guide component 700, thereby improving the uniformity of the air outlet 5 located there.
[0046] Considering that the appearance of the air balancing box is often not square due to actual space limitations, and when the air volume in the air balancing box is constant, the cross-sectional area is different, and the corresponding wind pressure is also different. If the size difference between the head and tail ends of the air balancing box is too large, the wind speed difference between the air outlets 5 at the two ends will be too large. Therefore, in another preferred embodiment, as Figure 1 and Figure 2 As shown, the hull 1 is in a wedge shape with a high head end and a low tail end, and the height ratio between the head and tail ends of the hull 1 is 5:11, so that the wind speed of each air outlet 5 of the hull 1 can be in an optimally balanced state.
[0047] Theoretically, the larger the cross-sectional area of the air inlet 6 of the air leveling box is, the more uniform the wind entering the air leveling box is. In another preferred embodiment, Figure 7 As shown, a connecting piece 7 protruding outward from the hull 1 is provided at the air inlet 6, and the connecting piece 7 is used to connect the air inlet pipe, so that the air inlet 6 can be extended outward from the hull 1, overcoming the above-mentioned defect of narrowing the net height of the air inlet 6 for installing the air nozzle at each air outlet 5, and expanding the cross-sectional area of the air inlet 6, which is beneficial to improving the uniformity of the air intake in the air uniformizing box.
[0048] In another preferred embodiment, Figure 8 As shown, the air outlet 5 is covered with a first mesh plate 8, and the first mesh plate 8 is detachably connected to the first side plate 3 through U-shaped rib plates 800 arranged on both sides thereof;
[0049] The U-shaped rib plate 800 includes a bottom plate 803 and an A plate 801 and a B plate 802 respectively connected to two sides of the bottom plate 803 , wherein the bottom plate 803 is fitted with the first side plate 3 , which can improve the flatness of the first mesh plate 8 .
[0050] In a further preferred embodiment, plate A 801 is located on the side away from the air outlet 5, plate B 802 is located on the side close to the air outlet 5, and the height of plate A 801 is less than the height of plate B 802. This can avoid the situation where plate A 801 is too high and blocks part of the air from entering the first mesh plate 8, thereby affecting the uniformity of air outlet 5. Preferably, the height of plate A 801 is less than 2 / 3 of the height of plate B 802.
[0051] The different cross-sectional areas at the head and tail ends of the hull 1 will result in different wind pressures at the air outlet 5, and the difference in wind pressure at the head and tail ends of the air outlet 5 is the largest. In another further preferred embodiment, a second mesh plate 9 is provided on the U-shaped rib plate 800 corresponding to the air outlet 5 at the head and tail ends of the hull 1, and the second mesh plate 9 is spaced apart from the first mesh plate 8 by a preset distance. By providing the second mesh plate 9, the wind speed at the air outlet 5 at that location can be reduced, thereby improving the uniformity of the air outlet of each air outlet 5.
[0052] In another preferred embodiment, Figure 1 and Figure 2 As shown, the hull 1 is provided with an infrared temperature measuring mechanism 10, which is used to monitor the surface temperature of the product. Specifically, a high-temperature resistant infrared sensor can be slidably set on the first side plate 3, so that the infrared sensor can perform all-round and accurate monitoring of the surface temperature of the product by sliding back and forth, so as to timely adjust the operating status of the equipment and improve the product drying quality.
[0053] In another preferred embodiment, Figure 2 As shown, two temperature sensors 11 are arranged in the air duct cavity 2 of the hull 1 at intervals along the direction from the head end to the tail end, which are used to monitor the temperature of the wind at different positions in the air duct cavity 2. The temperature sensor 11 is connected to the control unit signal. The temperature data of the two temperature sensors 11 are compared in real time to determine whether the equipment is operating normally. The temperature of the wind in the wind box can also be obtained in real time. Preferably, the two temperature sensors 11 are respectively arranged close to the head end and the tail end of the hull 1 so that the two are as far away from each other as possible.
[0054] In addition, an embodiment of a coating oven is also provided, comprising a nozzle, a blowing device and the aforementioned uniform air box, wherein the air outlet duct of the blowing device is connected to the air inlet 6 of the uniform air box for conveying hot air to the uniform air box; the air outlet 5 of the uniform air box is connected to a nozzle.
[0055] The coating oven provided in the second embodiment has the beneficial effects of the above-mentioned uniform wind box and can ensure the uniformity of the wind entering each wind nozzle and the consistency of the wind speed, thereby improving the uniformity of the dried product membrane and the product quality.
[0056] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0057] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0058] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A wind box, characterized in that: The invention comprises a hull, wherein the hull has an air duct cavity extending from the head end to the tail end thereof, wherein the side panels of the hull enclosing the air duct cavity and arranged from the head end to the tail end thereof include adjacent first side panels and second side panels; the first side panel is provided with a plurality of air outlets spaced apart from the head end to the tail end of the hull, the second side panel is provided with an air inlet away from the tail end of the hull, and the section of the air inlet directly facing the first side panel includes at least one of the air outlets; The first guide component and the second guide component are arranged at the air duct cavity of the hull facing the air inlet. The first guide component is used to redirect the airflow entering from the air inlet to flow evenly toward the rear end of the hull, and the second guide component is used to cooperate with the first guide component to increase the amount of air flowing close to the first side panel.
2. The air distribution box according to claim 1, characterized in that: The first guide assembly includes a plurality of first guide plates spaced apart from one end of the air inlet to the other end, the first guide plate including a first straight plate portion and a first arc plate portion, the first straight plate portion being close to the air inlet and facing the air inlet, and one end of the first straight plate portion away from the air inlet being smoothly connected to the first arc plate portion so that the first arc plate portion bends toward the rear end of the hull.
3. The air distribution box according to claim 2, characterized in that: A first guide plate is provided at both ends of the air outlet in the section of the first side plate facing the air inlet; The second air guide component includes a second straight plate portion and a second arc plate portion, and the second straight plate portion and the second arc plate portion are both located between the first air guide plates at both ends and connected to the first air guide plates at both ends; wherein, the second arc plate portion is arranged closer to the first side plate relative to the second straight plate portion, and the second arc plate portion bends from the air inlet toward the first side plate, and the second straight plate portion is inclined from its end away from the air inlet toward the second arc plate portion, and an air duct is formed by spacing an end of the second straight plate portion close to the air inlet from the second arc plate portion at a preset distance, and the airflow entering from the air inlet is guided to the first side plate through the air duct.
4. The air distribution box according to claim 1, characterized in that: There is at least one air outlet located between the head end of the hull and the air inlet, and a third guide component is also provided at the air duct cavity of the hull facing the air inlet. The third guide component is located on the side of the first guide component close to the head end of the hull, and is used to redirect the airflow entering from the air inlet and flow evenly toward the head end of the hull.
5. The air distribution box according to claim 4, characterized in that: The third guide assembly includes at least one third guide plate, and the third guide plate includes a third straight plate portion and a third curved plate portion. The third straight plate portion is close to the air inlet and faces the air inlet, and one end of the third straight plate portion away from the air inlet is smoothly connected to the third curved plate portion, so that the third curved plate portion is bent toward the head end of the hull.
6. The air distribution box according to claim 1, characterized in that: The hull is in a wedge shape with a high head end and a low tail end, and the height ratio of the head and tail ends of the hull is 5:11; or, a connecting piece protruding out of the hull body is provided at the air inlet, and the connecting piece is used to connect the air inlet pipe.
7. The air distribution box according to claim 1, characterized in that: The air outlet cover is provided with a first mesh plate, and the first mesh plate is detachably connected to the first side plate through U-shaped rib plates arranged on both sides thereof; The U-shaped rib plate includes a bottom plate and an A plate and a B plate respectively connected to two sides of the bottom plate, wherein the bottom plate is in contact with the first side plate.
8. The air distribution box according to claim 7, characterized in that: The A plate is located on the side away from the air outlet, the B plate is located on the side close to the air outlet, and the height of the A plate is smaller than the height of the B plate; or, a second mesh plate is provided on the U-shaped rib plate corresponding to the air outlet located at the bow and stern ends of the hull, and the second mesh plate is spaced apart from the first mesh plate by a preset distance.
9. The air distribution box according to claim 1, characterized in that: The hull is provided with an infrared temperature measuring mechanism, which is used to monitor the surface temperature of the product; or, two temperature sensors are spaced apart in the air duct cavity of the hull along the direction from the head end to the tail end, which are used to monitor the temperature of the wind in the air uniforming box.
10. A coating oven, characterized in that: It comprises an air nozzle, an air blowing device and an air uniforming box as described in any one of claims 1 to 9, wherein the air outlet duct of the air blowing device is connected to the air inlet of the air uniforming box for conveying hot air to the air uniforming box; the air outlet of the air uniforming box is connected to the air nozzle.