Air outlet structure and air duct structure

Abstract

The utility model relates to the field of dust removal air ducts of lithium ion batteries, in particular to an air outlet structure and an air duct structure. The air outlet structure comprises an air outlet plate, a plurality of air outlets are formed in the air outlet plate, and an adjusting mechanism used for adjusting the air volume of the air outlets is arranged between every two adjacent air outlets. The adjusting mechanism comprises an air uniformizing plate used for detecting the air speed difference between the adjacent air outlets and an air volume adjusting piece used for changing the air volume of the corresponding air outlet according to the detection result of the air uniformizing plate. In the dust removal process, through cooperative work of a plurality of adjusting mechanisms, the air volume and the air speed of each air outlet can be kept relatively consistent as far as possible, the overall dust removal effect of the pole piece is better, and the overall stress of the pole piece is also more uniform.

Description

Technical Field

[0001] The utility model relates to the field of dust removal air ducts for lithium ion batteries, in particular to an air outlet structure and an air duct structure. Background Art

[0002] Currently, lithium-ion batteries are used more and more widely. The production and processing technology of lithium-ion batteries is complicated. From the perspective of dust removal, including stirring, rolling, sheeting, winding, welding, packaging and other processes, lithium-ion batteries will generate dust or smoke during these processes. If not handled in time, it will have a great impact on product quality, damage processing equipment, and even threaten the life safety of employees.

[0003] Dust generated on lithium battery pole pieces, in particular, directly impacts various battery cell performance characteristics. Dust removal requires multiple air outlets to individually target different areas of the pole piece. Existing air blowing structures struggle to maintain uniform airflow across the multiple outlets, resulting in poor dust removal in certain areas of the pole piece. Furthermore, uneven force across the pole piece can lead to cracks. Utility Model Content

[0004] The utility model provides an air outlet structure and air duct structure. Each regulating mechanism in the utility model can adjust the air speed of the air outlet with higher wind speed in response to the wind speed difference between adjacent air outlets. Therefore, during the dust removal process, through the coordinated operation of multiple regulating mechanisms, the wind speed and air volume of each air outlet can be kept as relatively consistent as possible, the overall dust removal effect of the electrode piece is improved, and the overall force on the electrode piece is also more uniform.

[0005] In the first aspect, the utility model provides an air outlet structure, which includes an air outlet plate, on which a plurality of air outlets are provided, and an adjustment mechanism for adjusting the air volume of the air outlet is provided between adjacent air outlets, and the adjustment mechanism includes an air uniforming plate for detecting the wind speed difference between adjacent air outlets and an air volume adjustment plate for changing the air volume of the corresponding air outlet according to the detection result of the air uniforming plate.

[0006] In this utility model, the uniform air plate of the regulating mechanism can respond to the wind speed difference between the two air outlets and change the air volume of the corresponding air outlet through the air volume regulating plate, thereby automatically adjusting the air speed of the air outlet. Multiple regulating mechanisms can work together during the dust removal process to keep the wind speed and air volume of each air outlet as close to the normal range as possible, thus improving the overall dust removal effect of the electrode and making the overall force on the electrode more uniform.

[0007] Optionally, the adjustment mechanism further includes a gear set, and mounting holes for mounting the gear set are provided on the air outlet plate between adjacent air outlets, and the air leveling plate located on the air outlet side of the air outlet and the air volume adjustment plate located on the air inlet side of the air outlet are connected by a transmission via the gear set. This utility model can achieve relatively stable linkage of the movement of the air leveling plate and the air volume adjustment plate through the gear set, which has good stability and low cost in actual operation.

[0008] Optionally, the gear set includes a first gear and a second gear meshing with each other, the wind uniforming plate is connected to the shaft of the first gear, the bottom wall of the air volume regulating plate is provided with a rack, and the rack meshes with the second gear.

[0009] In the utility model, the wind uniform plate is installed on the shaft of the first gear. The deflection of the wind uniform plate can directly drive the shaft of the first gear to rotate. The rotation of the first gear drives the meshing second gear to rotate and finally drives the air volume adjustment plate to move. The entire transmission process works stably and has good practicality.

[0010] Optionally, the air uniforming plate is detachably connected to the shaft portion of the first gear.

[0011] In the present invention, the air uniforming plate and the shaft of the first gear can be detachably installed, so that the design of the air uniforming plate can be optimized by improving materials, geometric shapes or surface treatments according to different usage scenarios to obtain an ideal air outlet effect that is more suitable for the usage scenario.

[0012] Optionally, a guide rail is provided on the air outlet plate, and a guide groove for mounting and cooperating with the guide rail is opened on the bottom wall of the air volume adjustment plate.

[0013] In the utility model, the guide rail can ensure that the moving path of the air volume regulating piece remains stable and does not deviate significantly under the influence of wind.

[0014] In a second aspect, the utility model provides an air duct structure, which includes the above-mentioned air outlet structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The adjustment mechanism in this utility model can automatically reduce the wind speed and air volume of the outlet with the higher wind speed based on the wind speed difference between adjacent air outlets. Through this automatic adjustment method, the wind speed and air volume of adjacent air outlets can be maintained at a relatively consistent level during the dust removal process. Therefore, during the dust removal process, through the coordinated operation of multiple adjustment mechanisms, the wind speed and air volume of each air outlet can be kept relatively consistent, thereby achieving an optimal dust removal effect in each dust removal area of ​​the electrode. At the same time, the overall force on the electrode is also relatively uniform, reducing the risk of cracks in the electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of the air duct structure provided in Example 1;

[0018] Figure 2 for Figure 1 Structural diagram from another perspective;

[0019] Figure 3 A partial cross-sectional schematic diagram of the air outlet structure provided in Example 1;

[0020] Figure 4 This is a schematic diagram illustrating the working of the air outlet structure described in Example 1;

[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the stroke volume adjustment piece.

[0022] Numbers in the figure: 1, air outlet plate; 2, air uniforming plate; 3, gear set; 4, air volume adjustment plate; 41, rack; 42, guide groove; 5, guide rail; 6, air duct structure. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. Example 1

[0025] like Figure 1-Figure 2 As shown, this embodiment provides an air duct structure 6, wherein the air duct structure 6 is provided with an air outlet structure. Figure 3 The air outlet structure includes an air outlet plate 1, and a plurality of air outlets are provided on the air outlet plate 1. In this embodiment, the side panels of the air outlet plate 1 on both sides of the air outlet are thickened. The thickened side panels are conducive to keeping the air outlet direction of the air outlet vertically downward and avoiding the deviation of the air flow direction.

[0026] Combine Figure 3 An adjusting mechanism for adjusting the air volume of the air outlet is provided between adjacent air outlets, and the adjusting mechanism includes an air uniforming plate 2 for detecting the wind speed difference between adjacent air outlets and an air volume adjusting piece 4 for changing the air volume of the corresponding air outlet according to the detection result of the air uniforming plate.

[0027] Combine Figure 4 The specific working principle of one of the adjustment mechanisms of the air outlet structure is as follows: when the air outlet is spraying air, if the wind speeds of the two adjacent air outlets are inconsistent, that is, the wind speeds on both sides of the air uniform plate 2 form a wind speed difference, the pressure on the side with a large wind speed is small, and the pressure on the side with a small wind speed is large. The air uniform plate 2 can reduce the air volume of the corresponding air outlet through the air volume adjustment plate, and after the wind speed difference on both sides of the air uniform plate 2 is reduced, the air volume adjustment plate no longer reduces the air volume of the corresponding air outlet, so as to realize automatic adjustment of the air outlet wind speed.

[0028] During actual operation, the dust removal operation of the electrode usually needs to be continued within the preset dust removal time. During the dust removal process, due to the large number of air outlets, it is difficult to maintain good consistency in the wind speed and air volume of each air outlet. Each regulating mechanism in this embodiment can timely adjust the wind speed of the air outlet with larger wind speed and air volume when there is a wind speed difference between adjacent air outlets. During the entire dust removal process, the adjustment work of each regulating mechanism will be repeated many times, so that the air volume and wind speed of each air outlet can be kept as uniform as possible during the dust removal time, so that each area of ​​the electrode can achieve a better dust removal effect synchronously within the preset time. In addition, the overall force on the electrode during the dust removal process is relatively uniform, which can effectively avoid the occurrence of cracks. Example 2

[0029] The present embodiment is the same as the first embodiment, but the difference between the first embodiment and the second embodiment is that the regulating mechanism further includes a gear set 3, and a mounting hole for mounting the gear set 3 is provided on the air outlet plate 1 between the adjacent air outlets, and the air uniforming plate 2 located on the air outlet side of the air outlet and the air volume regulating piece 4 located on the air inlet side of the air outlet are connected by the gear set 3. Figure 3 In this embodiment, the air leveling plate 2 and the air volume regulating plate 4 are connected via a gear set 3. The gear set 3 includes a first gear and a second gear that mesh with each other. Both the first and second gears are mounted within the mounting holes via a gear shaft. Regular inspection of the gear set 3 is required, including checking gear wear, lubrication status, and mounting conditions to ensure long-term stable operation of the system.

[0030] The air leveler plate 2 is connected to the shaft of the first gear, also known as the gear shaft. The deflection of the air leveler plate 2 directly drives the gear shaft of the first gear to rotate. Because the air leveler plate 2 deflects only in response to the deflection force generated by the wind speed difference, the deflection angle is small and does not interfere with the meshing transmission between the first and second gears. A rack 41 is provided on the bottom wall of the air volume adjustment plate 4, which meshes with the second gear.

[0031] The air leveler plate 2 described in this embodiment is capable of deflecting in response to the wind speed difference between adjacent air outlets, thereby rectifying the entire air duct. In actual use, the specific structural material of the air leveler plate 2 can be further optimized based on actual needs. The rectifying effect of the air leveler plate 2 can be simulated through wind tunnel experiments or computational fluid dynamics. Based on the simulation results, the design of the air leveler plate 2 can be optimized by improving the material, geometry, or surface treatment to achieve a more stable and reliable air outlet effect that meets the requirements.

[0032] In conjunction with the gear set 3 in this embodiment, the working process of the adjustment mechanism is specifically described: when the wind speeds on both sides of the wind plate 2 are inconsistent, according to Bernoulli's principle, the pressure on the side with higher speed is lower, that is, there is a pressure difference on both sides of the wind plate 2, and the wind plate 2 is subjected to a deflection force toward the side with higher wind speed. Under the action of the deflection force, the wind plate 2 deflects and drives the first gear connected to it to rotate, and the first gear drives the second gear meshing with it to rotate. The second gear drives the air volume adjustment plate 4 to make a translational movement toward the air outlet on the side with higher wind speed through the rack 41 to reduce the air inlet area of ​​the air outlet with higher wind speed, thereby realizing adaptive adjustment of wind speed. After the wind speed at the air outlet on the side with higher wind speed returns to normal, the wind plate 2 is reset under the action of gravity, and at the same time drives the first gear, the second gear and the air volume adjustment plate 4 to reset, waiting for the next wind speed adjustment.

[0033] The installation position and movement path of the air volume adjustment piece 4 need to be pre-calibrated and tested to meet the actual wind speed adjustment requirements, and only fine-tuning and optimization processing is performed after it is actually put into use.

[0034] In this embodiment, the air leveling plate 2 is detachably mounted on the shaft of the first gear, i.e., the gear shaft. The air leveling plate 2 and the gear shaft can be mounted using fasteners or snap-on connections commonly used in the prior art, or other detachable connection methods that can achieve this function. Therefore, in actual operation, air leveling plates 2 of different structures and materials can be used according to different usage requirements. By selecting air leveling plates 2 of different lengths and widths, the air volume uniformity and air outlet direction consistency between the various air outlets can be adjusted to a certain extent, thereby achieving a better rectification effect.

[0035] In this embodiment, the air outlet plate 1 is provided with a guide rail 5. Figure 5 The air volume regulating piece 4 is provided with a guide slot 42, which is used to mount the air volume regulating piece 4 on the guide rail 5. The guiding cooperation between the guide slot 42 and the guide rail 5 ensures that the translation path of the air volume regulating piece 4 remains stable and does not deviate significantly under the influence of wind. When installing the guide rail 5, it is necessary to ensure that the position and orientation of the guide rail 5 correspond to the required translation path of the air volume regulating piece 4. Adjustment bolts and fixing bolts can also be used to fine-tune the sliding guide rail 5 to ensure smooth movement of the air volume regulating piece 4 and avoid friction and jamming.

[0036] After the entire air duct structure 6 is installed, testing is required to verify that the air uniforming plates 2 and air volume control plates 4 are operating as expected. During daily use of the air duct structure 6, a system operation log should be established to record data and operations during each adjustment, maintenance, and troubleshooting process. This recorded data should be analyzed to assess system operation, promptly identify and resolve potential issues, and ensure safe and stable operation of the entire air duct.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air outlet structure, characterized in that: The invention comprises an air outlet plate (1), wherein the air outlet plate (1) is provided with a plurality of air outlets, and an adjusting mechanism for adjusting the air volume of the air outlets is provided between adjacent air outlets, wherein the adjusting mechanism comprises an air leveling plate (2) for detecting the wind speed difference between adjacent air outlets and an air volume adjusting piece (4) for changing the air volume of the corresponding air outlet according to the detection result of the air leveling plate (2).

2. The air outlet structure according to claim 1, characterized in that: The regulating mechanism further comprises a gear set (3); a mounting hole for mounting the gear set (3) is provided on the air outlet plate (1) between adjacent air outlets; the air uniforming plate (2) located on the air outlet side of the air outlet and the air volume regulating piece (4) located on the air inlet side of the air outlet are connected by transmission via the gear set (3).

3. The air outlet structure according to claim 2, characterized in that: The gear set (3) comprises a first gear and a second gear meshing with each other, the wind uniforming plate (2) is connected to the shaft of the first gear, and the bottom wall of the air volume regulating plate (4) is provided with a rack (41), and the rack (41) meshes with the second gear.

4. The air outlet structure according to claim 3, characterized in that: The wind uniforming plate (2) is detachably connected to the shaft portion of the first gear.

5. The air outlet structure according to claim 1, characterized in that: A guide rail (5) is provided on the air outlet plate (1), and a guide groove (42) is provided on the bottom wall of the air volume regulating plate (4) for mounting and cooperating with the guide rail (5).

6. An air duct structure, characterized in that: It comprises an air outlet structure as described in any one of claims 1-5.

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