Coating oven and battery production line

Abstract

The embodiment of the application provides a coating oven and a battery production line. The coating oven comprises a box body, an upper air chamber, a plurality of upper air nozzles and a first air fan. The upper air chamber is arranged in the box body. The plurality of upper air nozzles are installed in the upper air chamber. The plurality of upper air nozzles are arranged at intervals along a first direction. A first gap is formed between two adjacent upper air nozzles. The upper air nozzles are configured to blow air downward to the pole piece. The first air fan is installed in the upper air chamber. The first air fan is configured to blow air from one side to the other side along a second direction from the first gap. The second direction, the first direction and the direction of gravity are perpendicular to each other. The application can improve the drying effect on the pole piece.

Description

Technical Field

[0001] This application relates to the field of battery drying technology, and more specifically, to a coating supply box and a battery production line. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery devices are a crucial factor in their development.

[0003] During battery production, the battery electrodes need to be dried in a coating oven, but the drying effect is not ideal. Utility Model Content

[0004] This application provides a coating oven and a battery production line, which can improve the drying effect of electrode sheets.

[0005] In a first aspect, embodiments of this application provide a coating oven, including a chamber, an upper air chamber, a plurality of upper air nozzles, and a first fan; the upper air chamber is disposed within the chamber; the plurality of upper air nozzles are installed in the upper air chamber, the plurality of upper air nozzles are spaced apart along a first direction, a first gap is formed between two adjacent upper air nozzles, and the upper air nozzles are configured to blow air toward an electrode sheet below them; the first fan is installed in the upper air chamber, and the first fan is configured to blow air from one side of the first gap along a second direction to the other side, the second direction, the first direction, and the direction of gravity being perpendicular to each other.

[0006] By setting up a first fan, the first fan is configured to blow air from one side to the other along a second direction from the first gap formed between two adjacent upper air nozzles, so as to remove the moisture accumulated in the first gap, reduce moisture accumulation, thereby improving the problem of poor drying consistency of the electrode sheets and improving the drying effect of the electrode sheets; and without affecting the blowing of the upper air nozzles.

[0007] In some embodiments, in two adjacent first gaps, one is provided with a first fan along a first side of the second direction, and the other is provided with a first fan along a second side of the second direction; the first fan provided on the first side is configured to blow air towards the second side, and the first fan provided on the second side is configured to blow air towards the first side.

[0008] Compared to the first fan being distributed on one side of the second direction, this design ensures that the air pressure at both ends of the electrode sheet along the second direction remains consistent, reducing the risk of the electrode sheet shifting within the chamber due to large air pressure differences. Furthermore, the power of the first fan can be appropriately increased to accelerate the airflow speed and distance, reducing humidity accumulation. At the same time, the increased airflow speed above the electrode sheet can further improve the drying rate of the electrode sheet.

[0009] In some embodiments, the first fan includes a housing and a flow guide. The housing includes an air inlet and an air outlet. The flow guide is disposed at the air outlet and is used to adjust the air outlet angle and / or flow rate.

[0010] By adjusting the air outlet angle and / or flow rate through the guide vanes, the optimal air outlet angle and / or flow rate can be achieved to cope with various complex situations and enhance the stability of the internal environment of the coating oven.

[0011] In some embodiments, the flow guide includes an upper flow guide plate, a lower flow guide plate, and an angle adjustment member. The lower flow guide plate and the upper flow guide plate are disposed opposite to each other. The lower flow guide plate is rotatably connected to the housing. The angle adjustment member is connected to the lower flow guide plate and is used to drive the lower flow guide plate to rotate so as to adjust the angle between the lower flow guide plate and the upper flow guide plate.

[0012] The angle adjustment component drives the lower guide plate to rotate, adjusting the angle between the upper and lower guide plates. It can also adjust the size of the air outlet, thereby adjusting the air outlet speed and distance to cope with various complex situations and enhance the stability of the internal environment of the coating oven.

[0013] In some embodiments, the first fan includes a housing and a filter screen, the housing including an air inlet and an air outlet, and the filter screen disposed on the housing and covering the air inlet.

[0014] By installing a filter, the risk of floating carbon powder or broken electrode sheets inside the coating oven being sucked into the casing and damaging the impeller of the first fan can be eliminated, or the electrode sheets being blown off through the air outlet and falling onto the electrode sheet surface, thus damaging the electrode sheet.

[0015] In some embodiments, the top of the housing is provided with an upper exhaust vent.

[0016] The upper air nozzle blows air onto the electrode sheet below, and the airflow flows from both sides in the second direction to the upper exhaust port, thus forming a return airflow and improving drying efficiency. The first fan blows air from one side to the other along the second direction through the first gap, carrying the accumulated moisture to the edge of the electrode sheet and expelling it outside the chamber through the return airflow, reducing moisture accumulation, ensuring uniform drying of the electrode sheet, and further improving drying efficiency.

[0017] In some embodiments, the coating oven further includes a lower air chamber and a plurality of lower air nozzles, the lower air chamber being disposed within the chamber; the plurality of lower air nozzles being installed in the lower air chamber, the plurality of lower air nozzles being spaced apart along the first direction, a second gap being formed between two adjacent lower air nozzles, and the lower air nozzles being configured to blow air onto the electrode sheet above them.

[0018] By blowing air onto the upper surface of the electrode through the upper nozzle and onto the lower surface of the electrode through the lower nozzle, the drying efficiency of the electrode can be improved.

[0019] In some embodiments, the coating oven further includes a second fan installed in the lower air chamber, the second fan being configured to blow air from one side to the other along the second direction from the second gap.

[0020] By setting a second fan, which is configured to blow air from one side to the other along a second direction from the second gap formed between two adjacent lower air nozzles, the moisture accumulated in the second gap is carried away, reducing moisture accumulation and thus improving the problem of poor drying uniformity of the lower surface of the electrode and enhancing the drying effect of the electrode; and without affecting the blowing of the lower air nozzles.

[0021] In some embodiments, in two adjacent second gaps, one is provided with a second fan along a first side of the second direction, and the other is provided with a second fan along a second side of the second direction. The second fan provided on the first side is configured to blow air toward the second side, and the second fan provided on the second side is configured to blow air toward the first side.

[0022] Compared to the second fan being distributed on one side of the second direction, this design ensures that the air pressure at both ends of the electrode sheet along the second direction remains consistent, reducing the risk of the electrode sheet shifting within the chamber due to large air pressure differences. Furthermore, the power of the second fan can be appropriately increased to accelerate the airflow speed and distance, reducing humidity accumulation. At the same time, the increased airflow speed below the electrode sheet can further improve the drying rate of the electrode sheet.

[0023] In some embodiments, a bottom exhaust vent is provided at the bottom of the housing.

[0024] The lower air nozzle blows air onto the electrode sheet above it, and the airflow flows down to the exhaust port from both sides in the second direction, thus forming a return airflow and improving drying efficiency. A second fan blows air from one side of the second gap along the second direction to the other, carrying accumulated moisture to the edge of the electrode sheet and expelling it outside the chamber through the return airflow. This reduces moisture buildup, ensuring consistent drying across the lower surface of the electrode sheet and further improving drying efficiency.

[0025] Secondly, embodiments of this application provide a battery production line, including the coating oven described in any one of the embodiments of the first aspect.

[0026] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 Perspective view of a coating oven provided for some embodiments of this application;

[0029] Figure 2 A front view of a coating oven provided for some embodiments of this application;

[0030] Figure 3 Side view of a coating oven provided for some embodiments of this application;

[0031] Figure 4 Top view of the internal structure of a coating oven provided in some embodiments of this application;

[0032] Figure 5 This is a schematic diagram of the structure of the first fan of the coating oven provided in some embodiments of this application;

[0033] Figure 6 A partial structural cross-sectional view of the first fan of a coating oven provided in some embodiments of this application.

[0034] icon:

[0035] 100-Coating oven; 10-Box body; 11-Upper exhaust vent; 12-Lower exhaust vent; 20-Upper air chamber; 21-Upper hanging structure; 30-Upper nozzle; 30a-First gap; 40-First fan; 41-Outer shell; 411-Air inlet; 412-Air outlet; 42-Guide component; 421-Upper guide plate; 422-Lower guide plate; 423-Angle adjustment component; 43-Filter screen; 44-Fan bracket; 45-Filter screen support frame; 50-Lower air chamber; 51-Lower support structure; 60-Lower nozzle; 60a-Second gap; 200-Electrode sheet. Detailed Implementation

[0036] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the description of this application and the foregoing drawings are intended to cover non-exclusive inclusion.

[0038] The terms "first," "second," etc., used in the specification or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or primary / secondary relationship.

[0039] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0042] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0043] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0044] The terms "first," "second," etc., in the specification and the above-mentioned figures of this application are used to distinguish different objects, rather than to describe a specific order or primary-secondary relationship.

[0045] During the coating oven drying process of electrode sheets, if the evaporated moisture from the electrode sheets cannot be discharged in time, it will accumulate. The accumulated moisture affects the drying efficiency of the electrode sheets and exacerbates the humidity at the corresponding accumulation points, resulting in poor drying uniformity across the electrode sheets. For example, in some cases, moisture loss is faster at both ends of the electrode sheet along its width, while moisture loss is slower in the middle. As moisture continues to accumulate in the middle, the humidity in the middle section will further increase, causing the electrode sheets to easily crack at the ends and stick to the rollers in the middle section.

[0046] To improve the problems of poor drying consistency and low drying efficiency of coating ovens for electrodes, this application provides a coating oven including a chamber, an upper air chamber, multiple upper air nozzles, and a first fan. The upper air chamber is disposed inside the chamber. The multiple upper air nozzles are installed in the upper air chamber and are spaced apart along a first direction, forming a first gap between adjacent upper air nozzles. The upper air nozzles are configured to blow air onto the electrodes below them. The first fan is installed in the upper air chamber and is configured to blow air from one side of the first gap along a second direction to the other side. The second direction, the first direction, and the direction of gravity are perpendicular to each other.

[0047] By setting up a first fan, which is configured to blow air from one side to the other along a second direction from the first gap formed between two adjacent upper air nozzles, the accumulated moisture can be carried away, reducing moisture accumulation and thus improving the problem of poor electrode drying consistency and enhancing the drying effect on the electrode; and it does not affect the blowing of the upper air nozzles.

[0048] Below, refer to Figures 1 to 6 The coating oven of the present application will be described in detail below.

[0049] This application provides a coating oven 100, including a chamber 10, an upper air chamber 20, a plurality of upper air nozzles 30, and a first fan 40. The upper air chamber 20 is disposed inside the chamber 10. The plurality of upper air nozzles 30 are installed in the upper air chamber 20 and are spaced apart along a first direction X. A first gap 30a is formed between two adjacent upper air nozzles 30. The upper air nozzles 30 are configured to blow air onto the electrode 200 below them. The first fan 40 is installed in the upper air chamber 20 and is configured to blow air from one side of the first gap 30a along a second direction Y to the other side. The second direction Y, the first direction X, and the direction of gravity are perpendicular to each other.

[0050] The housing 10 is used to house the upper air chamber 20, multiple upper air nozzles 30, and the first fan 40. The housing 10 may be made of heat-insulating material. The housing 10 may be provided with inlet and outlet for feeding the electrode sheet 200.

[0051] The upper air chamber 20 is used to provide dry airflow to multiple upper air nozzles 30, making the airflow from the multiple upper air nozzles 30 more uniform. The upper air chamber 20 can be shaped like a ship's hull and can be fixed inside the housing 10 by the upper hoisting structure 21.

[0052] The upper air nozzle 30 is connected to the upper air chamber 20 and can be fixed to the bottom of the upper air chamber 20 for blowing air onto the electrode 200 below it. Multiple upper air nozzles 30 are spaced apart along a first direction X, which can be the length direction of the upper air chamber 20 and can be parallel to the belt-carrying direction of the electrode 200. A first gap 30a is formed between two adjacent upper air nozzles 30. Each upper air nozzle 30 can extend into a strip along a second direction Y, so that a first strip-shaped gap 30a extending along the second direction Y is formed between two adjacent upper air nozzles 30, where the second direction Y can be the width direction of the upper air chamber 20.

[0053] The first fan 40 blows air from one side of the first gap 30a along the second direction Y to the other, carrying away the moisture accumulated in the first gap 30a without affecting the airflow from the upper nozzle 30 to the electrode below it. Multiple first fans 40 can be provided, and multiple first fans 40 can blow air from the same side of multiple first gaps 30a along the second direction Y to the other. For example, refer to... Figure 2 Multiple first fans 40 can be installed on the same side of the upper air chamber 20 along the second direction Y via their respective fan brackets 44. For example, refer to... Figure 4 Multiple first fans 40 can also be installed on opposite sides of the upper air chamber 20 along the second direction Y.

[0054] As an example, the first fan 40 can be located on one side of the first gap 30a along the second direction Y, and the air outlet 412 of the first fan 40 can be located in the first gap 30a, and the air outlet direction of the air outlet 412 can be consistent with the second direction Y. The first fan 40 can be a centrifugal fan.

[0055] By setting a first fan 40, the first fan 40 is configured to blow air from one side to the other along the second direction Y from the first gap 30a formed between two adjacent upper air nozzles 30, so as to remove the moisture accumulated in the first gap 30a, reduce moisture accumulation, thereby improving the problem of poor electrode drying consistency and improving the drying effect on the electrode 200; and without affecting the blowing of the upper air nozzles 30.

[0056] In some embodiments, in two adjacent first gaps 30a, one is provided with a first fan 40 along the first side of the second direction Y, and the other is provided with a first fan 40 along the second side of the second direction Y; the first fan 40 provided on the first side is configured to blow air to the second side, and the first fan 40 provided on the second side is configured to blow air to the first side.

[0057] The first gap 30a has two opposite sides along the second direction Y, namely the first side and the second side, for example Figure 4 The left and right sides of the middle.

[0058] In two adjacent first gaps 30a, a first fan 40 is provided on the first side of one first gap 30a and the second side of the other first gap 30a, so that multiple first fans 40 located on the first side and the second side are arranged in an alternating manner.

[0059] In two adjacent first gaps 30a, the first fan 40 located on the first side of one of the first gaps 30a and the first fan 40 located on the second side of the other first gap 30a blow air to opposite sides in the second direction Y.

[0060] Therefore, compared with the first fan 40 being distributed on one side of the second direction Y, this design can keep the air pressure at both ends of the electrode 200 along the second direction Y consistent, and will not cause the electrode 200 to deviate within the housing 10 due to large differences in air pressure. Furthermore, under the premise that the electrode 200 does not deviate, the first fan 40 can appropriately increase its power, accelerate the airflow speed and distance, reduce humidity accumulation, and at the same time, the airflow speed above the electrode 200 is accelerated, which can further improve the drying rate of the electrode 200.

[0061] In some embodiments, the first fan 40 includes a housing 41 and a flow guide 42. The housing 41 includes an air inlet 411 and an air outlet 412. The flow guide 42 is disposed at the air outlet 412 and is used to adjust the air outlet angle and / or flow rate of the air outlet 412.

[0062] The air outlet angle can be adjusted by adjusting the position of the guide 42 at the air outlet 412. The air outlet speed can be adjusted by adjusting the size of the air outlet 412 through the guide 42.

[0063] According to the actual situation inside the coating oven 100, the air outlet angle and / or flow rate of the air outlet 412 can be adjusted by the guiding effect of the guide component 42 and its position at the air outlet 412, so as to achieve the optimal air outlet angle and / or flow rate, in order to cope with various complex situations and enhance the stability of the internal environment of the coating oven 100.

[0064] In some embodiments, the flow guide 42 includes an upper flow guide plate 421, a lower flow guide plate 422, and an angle adjustment member 423. The lower flow guide plate 422 and the upper flow guide plate 421 are disposed opposite to each other. The lower flow guide plate 422 is rotatably connected to the housing 41. The angle adjustment member 423 is connected to the lower flow guide plate 422 and is used to drive the lower flow guide plate 422 to rotate so as to adjust the angle between the lower flow guide plate 422 and the upper flow guide plate 421.

[0065] As an example, the upper deflector 421 can be arranged generally horizontally. The lower deflector 422 can be slightly tilted upwards or arranged horizontally to reduce the impact of the airflow on the electrode 200. The angle adjustment component 423 can be a knob, lever, or other easy-to-operate component.

[0066] According to the actual situation inside the coating oven 100, the angle between the upper and lower guide plates can be adjusted by rotating the lower guide plate 422 through the angle adjustment component 423. At the same time, the size of the air outlet can also be adjusted, thereby adjusting the air outlet speed and distance to cope with various complex situations and enhance the stability of the internal environment of the coating oven 100.

[0067] In some embodiments, the first fan 40 further includes a filter 43 disposed on the housing 41 and covering the air inlet 411.

[0068] The filter 43 can be directly fixed to the edge of the air inlet 411 of the housing 41, or it can be indirectly fixed to the housing 41 and cover the air inlet 411 through the filter support bracket 45. The filter 43 can be made of metal mesh, plastic mesh, etc.

[0069] By installing the filter screen 43, it is possible to prevent debris such as carbon powder or broken electrode sheets floating inside the coating oven 100 from being sucked into the outer casing 41 and damaging the impeller of the first fan, or from being blown out through the air outlet 412 and falling onto the surface of the electrode sheet 200, thus damaging the electrode sheet 200. The filter screen support frame 45 can stabilize the structure of the filter screen 43 and extend the service life of the filter screen 43.

[0070] In some embodiments, the top of the housing 10 is provided with an upper exhaust vent 11.

[0071] Reference Figure 3 The upper exhaust vent 11 and the upper nozzle 30 can be located on the upper and lower sides of the upper air chamber 20, respectively. The upper nozzle 30 blows air onto the electrode 200 below it, and the airflow flows from both sides of the second direction Y and is discharged into the upper exhaust vent 11, thereby forming a return airflow. Figure 3 (As indicated by the middle arrow F1), to improve drying efficiency.

[0072] Air is blown from one side of the first gap 30a to the other side along the second direction Y by the first fan 40. Figure 3 As shown by the middle arrow F2, the accumulated moisture is carried to the edge of the electrode 200 and discharged to the outside of the box 10 through the return airflow, reducing the accumulation of humidity, making the drying effect of the electrode 200 uniform in all positions, and also improving the drying efficiency.

[0073] In some embodiments, the coating oven 100 further includes a lower air chamber 50 and a plurality of lower air nozzles 60. The lower air chamber 50 is disposed inside the housing 10. The plurality of lower air nozzles 60 are installed in the lower air chamber 50 and are spaced apart along a first direction X. A second gap 60a is formed between two adjacent lower air nozzles 60. The lower air nozzles 60 are configured to blow air onto the electrode 200 above them.

[0074] The lower air chamber 50 is used to provide dry airflow to the multiple lower air nozzles 60, making the airflow from the multiple lower air nozzles 60 more uniform. The lower air chamber 50 can be shaped like a ship's hull and can be fixed inside the housing 10 by the lower support structure 51.

[0075] The lower air nozzle 60 is connected to the lower air chamber 50 and can be fixed to the top of the lower air chamber 50 for blowing air onto the electrode 200 above it. Each lower air nozzle 60 can extend into a strip along the second direction Y to form a second gap 60a extending along the second direction Y between two adjacent lower air nozzles 60.

[0076] By blowing air through the upper nozzle 30 onto the upper surface of the electrode 200 and the lower nozzle 60 onto the lower surface of the electrode 200, the drying efficiency of the electrode 200 can be improved.

[0077] In some embodiments, the coating oven 100 further includes a second fan (not shown) mounted in the lower air chamber 50, the second fan being configured to blow air from one side of the second gap 60a along the second direction Y to the other side.

[0078] The second fan blows air from one side of the second gap 60a along the second direction Y to the other, carrying away the moisture accumulated in the second gap 60a without affecting the airflow from the lower nozzle 60 to the electrode 200 above it. Multiple second fans can be provided, and each fan can blow air from the same side of the second gap 60a along the second direction Y to the other. Multiple second fans can be installed on the same side of the lower air chamber 50 along the second direction Y. Alternatively, multiple second fans can be installed on opposite sides of the lower air chamber 50 along the second direction Y.

[0079] As an example, the second fan can be located on one side of the second gap 60a along the second direction Y, and the air outlet of the second fan can be located in the second gap 60a, with the air outlet direction of the second fan being consistent with the second direction Y. The second fan can be a centrifugal fan.

[0080] By setting a second fan, the second fan is configured to blow air from one side to the other along the second direction Y from the second gap 60a formed between two adjacent lower air nozzles 60, so as to remove the moisture accumulated in the second gap 60a, reduce moisture accumulation, thereby improving the problem of poor drying uniformity of the lower surface of the electrode and improving the drying effect of the electrode 200; and without affecting the blowing of the lower air nozzles 60.

[0081] In some embodiments, in two adjacent second gaps 60a, one is provided with a second fan along the first side of the second direction Y, and the other is provided with a second fan along the second side of the second direction Y. The second fan provided on the first side is configured to blow air to the second side, and the second fan provided on the second side is configured to blow air to the first side.

[0082] The second gap 60a has two opposite sides along the second direction Y, namely the first side and the second side.

[0083] In two adjacent second gaps 60a, a second fan is provided on the first side of one second gap 60a and the second side of the other second gap 60a, so that multiple second fans located on the first side and the second side are arranged alternately.

[0084] In two adjacent second gaps 60a, the second fan located on the first side of one second gap 60a and the second fan located on the second side of the other second gap 60a blow air to opposite sides in the second direction Y.

[0085] Therefore, compared with the second fan being distributed on one side of the second direction Y, this design can keep the air pressure at both ends of the electrode 200 along the second direction Y consistent, and will not cause the electrode 200 to deviate within the housing 10 due to large air pressure differences. Furthermore, under the premise that the electrode 200 does not deviate, the power of the second fan can be appropriately increased to accelerate the airflow speed and distance, reduce humidity accumulation, and at the same time, the airflow speed below the electrode 200 is accelerated, which can further improve the drying rate of the electrode 200.

[0086] In some embodiments, a bottom exhaust vent 12 is provided at the bottom of the housing 10.

[0087] Reference Figure 3 The lower exhaust vent 12 and the lower air nozzle 60 can be located on the upper and lower sides of the lower air chamber 50, respectively. The lower air nozzle 60 blows air onto the electrode plate 200 above it, and the airflow flows from both sides of the second direction Y to the lower exhaust vent 12, thereby forming a return airflow. Figure 3 (As shown by the middle arrow F3), to improve drying efficiency.

[0088] By using a second fan to blow air from one side of the second gap 60a along the second direction Y to the other side, the accumulated moisture is carried to the edge of the electrode 200 and discharged to the outside of the housing 10 through the return airflow, reducing the accumulation of moisture and making the drying effect uniform at all positions on the lower surface of the electrode 200, thereby further improving the drying efficiency.

[0089] Secondly, embodiments of this application provide a battery production line, including a coating oven 100 according to any one of the embodiments of the first aspect.

[0090] Below, refer to Figures 1 to 6 A specific example of an embodiment of this application will be described below.

[0091] This application provides a coating oven 100, including a box body 10, an upper air chamber 20, multiple upper air nozzles 30, a first fan 40, a lower air chamber 50, and multiple lower air nozzles 60.

[0092] The housing 10 has a cavity. The top of the housing 10 is provided with an upper exhaust vent 11, and the bottom of the housing 10 is provided with a lower exhaust vent 12. Both the upper exhaust vent 11 and the lower exhaust vent are connected to the cavity.

[0093] The upper air chamber 20 and the lower air chamber 50 are located inside the housing 10. The upper air nozzle 30 and the lower air nozzle 60 are respectively installed in the upper air chamber 20 and the lower air chamber 50, and the space between the upper air nozzle 30 and the lower air nozzle 60 is used to accommodate the electrode 200.

[0094] Multiple upper air nozzles 30 are spaced apart along a first direction X, with a first gap 30a between adjacent upper air nozzles 30. Each upper air nozzle 30 is configured to blow air onto the electrode 200 below it. Multiple lower air nozzles 60 are spaced apart along the first direction X, with a second gap 60a between adjacent lower air nozzles 60. Each lower air nozzle 60 is configured to blow air onto the electrode 200 above it. The upper air nozzles 30 and lower air nozzles 60 blow air onto the upper and lower surfaces of the electrode 200, respectively.

[0095] In two adjacent first gaps 30a, a first fan 40 is provided on the first side along the second direction Y in one gap and a first fan 40 is provided on the second side along the second direction Y in the other gap, such that the multiple first fans 40 located on the first side and the second side are arranged in an alternating manner. The first fan 40 located on the first side is configured to blow air to the second side, and the first fan 40 located on the second side is configured to blow air to the first side.

[0096] Reference Figure 3 The upper air nozzle 30 blows air onto the electrode 200 below it, and the airflow flows from both sides of the second direction Y and is discharged into the upper exhaust port 11, thus forming a return airflow. Figure 3 (As shown by the middle arrow F1), to improve drying efficiency. The lower air nozzle 60 blows air onto the electrode 200 above it, and the airflow flows from both sides of the second direction Y to the lower exhaust port 12, thus forming another return airflow ( Figure 3 (As shown by the middle arrow F3), to improve drying efficiency. Air is blown from one side of the first gap 30a to the other side along the second direction Y by the first fan 40. Figure 3 As shown by the middle arrow F2, the accumulated moisture is carried to the edge of the electrode 200 and discharged to the outside of the box 10 through the return airflow, reducing the accumulation of humidity, making the drying effect of the electrode 200 uniform in all positions, and also improving the drying efficiency.

[0097] The first fan 40 includes a housing 41 and a flow guide 42. The housing 41 includes an air inlet 411 and an air outlet 412. The flow guide 42 is disposed at the air outlet 412 and is used to adjust the air outlet angle and / or flow rate of the air outlet 412. The flow guide 42 includes an upper flow guide plate 421, a lower flow guide plate 422, and an angle adjusting member 423. The lower flow guide plate 422 and the upper flow guide plate 421 are disposed opposite to each other. The lower flow guide plate 422 is rotatably connected to the housing 41. The angle adjusting member 423 is connected to the lower flow guide plate 422 and is used to drive the lower flow guide plate 422 to rotate, thereby adjusting the angle between the lower flow guide plate 422 and the upper flow guide plate 421. The first fan 40 also includes a filter screen 43, which is disposed on the housing 41 and covers the air inlet 411.

[0098] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of this application.

Claims

1. A coating oven, characterized in that, include: Box; An upper air chamber is located inside the enclosure; Multiple upper air nozzles are installed in the upper air chamber. The multiple upper air nozzles are spaced apart along a first direction, and a first gap is formed between two adjacent upper air nozzles. The upper air nozzles are configured to blow air toward the electrode below them. A first fan is installed in the upper air chamber. The first fan is configured to blow air from one side of the first gap along a second direction to the other side. The second direction, the first direction, and the direction of gravity are perpendicular to each other.

2. The coating oven according to claim 1, characterized in that, In two adjacent first gaps, one is provided with the first fan along the first side of the second direction, and the other is provided with the first fan along the second side of the second direction; The first fan located on the first side is configured to blow air towards the second side, and the first fan located on the second side is configured to blow air towards the first side.

3. The coating oven according to claim 1, characterized in that, The first fan includes a housing and a flow guide. The housing includes an air inlet and an air outlet. The flow guide is disposed at the air outlet and is used to adjust the air outlet angle and / or flow rate.

4. The coating oven according to claim 3, characterized in that, The flow guide includes an upper flow guide plate, a lower flow guide plate, and an angle adjustment component. The lower flow guide plate and the upper flow guide plate are disposed opposite to each other. The lower flow guide plate is rotatably connected to the outer casing. The angle adjustment component is connected to the lower flow guide plate and is used to drive the lower flow guide plate to rotate so as to adjust the angle between the lower flow guide plate and the upper flow guide plate.

5. The coating oven according to claim 1, characterized in that, The first fan includes a housing and a filter screen. The housing includes an air inlet and an air outlet, and the filter screen is disposed on the housing and covers the air inlet.

6. The coating oven according to claim 1, characterized in that, The top of the enclosure is equipped with an exhaust vent.

7. The coating oven according to claim 1, characterized in that, The coating oven also includes: A downdraft chamber is located inside the enclosure. Multiple downdraft nozzles are installed in the downdraft chamber, and the multiple downdraft nozzles are spaced apart along the first direction, with a second gap formed between two adjacent downdraft nozzles. The downdraft nozzles are configured to blow air onto the electrode plate above them.

8. The coating oven according to claim 7, characterized in that, The coating oven also includes: A second fan is installed in the lower air chamber and is configured to blow air from one side to the other along the second direction from the second gap.

9. The coating oven according to claim 8, characterized in that, In two adjacent second gaps, one is provided with a second fan along the first side of the second direction, and the other is provided with a second fan along the second side of the second direction. The second fan provided on the first side is configured to blow air towards the second side, and the second fan provided on the second side is configured to blow air towards the first side.

10. The coating oven according to claim 7, characterized in that, The bottom of the enclosure is equipped with a downward air vent.

11. A battery production line, characterized in that, include: The coating oven as described in any one of claims 1-10.

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