Battery cell baking tray structure

Abstract

The utility model relates to the technical field of lithium battery production, and discloses a battery cell baking tray structure which comprises a plurality of tray frame bodies, a plurality of heat conducting plates are arranged in each tray frame body, a cover plate is clamped on the upper surface of the uppermost tray frame body, a group of air holes are formed in the upper surface of each heat conducting plate, and a plurality of air holes are formed in the upper surface of each heat conducting plate. And a plurality of groups of substrates are mounted on the upper surface of each heat conducting plate through bolts. According to the battery cell baking tray structure, through the design that the multiple layers of heat conduction plates are matched with the air holes, it is guaranteed that heat is rapidly and evenly conducted, it is also guaranteed that water vapor is efficiently discharged, uneven heating and unsmooth moisture discharging in the battery cell body baking process are avoided, and through bolt fixing and gap arrangement, accurate positioning and stable bearing of battery cells are achieved; and the flexible production of the battery cells with different sizes can be adapted, and the gap exists between the heat conducting plate and the battery cell body, so that the battery cell body can be uniformly wrapped by heat, and the uniform drying of the battery cell body is realized.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a cell baking tray structure. Background Technology

[0002] Lithium battery production refers to the process of assembling core components such as positive electrode materials, negative electrode materials, electrolytes, and separators into rechargeable lithium-ion batteries through a series of precision processes. This process covers the entire industrial chain from raw material processing to finished battery assembly and is the core manufacturing link of the new energy industry.

[0003] In the lithium battery production process, the cells need to be baked. During the baking process, the cells are usually stored in cell trays and then transferred to an oven for baking and dehydration. However, the cell baking trays currently in use cause the cells to be tightly packed together when placed in the receiving slots, which prevents the cells from being heated evenly during the baking process and ultimately affects the baking effect of the oven. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a battery cell baking tray structure, which has advantages such as uniform baking and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery cell baking tray structure, comprising multiple tray frames, each tray frame having multiple heat-conducting plates inside, a cover plate snapped onto the upper surface of the uppermost tray frame, each heat-conducting plate having a set of vent holes on its upper surface, each heat-conducting plate having multiple sets of base plates mounted on its upper surface by bolts, each set of base plates having a gap between them, each set of base plates having a battery cell body placed on its upper surface, and each battery cell body being located between each set of base plates.

[0006] Furthermore, the upper surface of the cover plate is provided with multiple discharge holes, which are distributed in a matrix.

[0007] The above solution allows for the rapid dissipation of water vapor during the baking process, preventing steam from accumulating inside the tray and improving drying efficiency. At the same time, the matrix distribution ensures uniform airflow and prevents excessive local humidity.

[0008] Furthermore, each of the tray frames has a bracket fixedly connected to its inner wall, and each of the heat-conducting plates is connected to its adjacent bracket by bolts.

[0009] By using the above solution to fix the bracket to the heat-conducting plate, the stability of the heat-conducting plate can be enhanced, preventing high-temperature deformation. At the same time, it is easy to disassemble and maintain, improving the durability and maintainability of the tray structure.

[0010] Furthermore, the multiple pallet frames are stacked and each pallet frame is interlocked with the others.

[0011] The above solution, with its stacked tray frames, improves space utilization and facilitates batch baking operations. At the same time, the snap-fit ​​structure ensures stable stacking and prevents displacement or tipping during baking.

[0012] Furthermore, each of the substrates has a slidably connected limiting block in the groove on its upper surface, each limiting block is fixedly connected to a limiting block adjacent to it by bolts, and each limiting block is in contact with the cell body adjacent to it.

[0013] The above solution allows for flexible adjustment of the limiting block position to accommodate battery cells of different sizes, ensuring that the battery cells remain fixed during the baking process and preventing displacement due to vibration or airflow.

[0014] Furthermore, a set of slides is fixedly connected to the outer surface of each frame, and the bottom slot of each slide is T-shaped.

[0015] The above solution enables the pallet frame to move easily along the external track, improving automation and reducing manual handling. At the same time, the T-slot design ensures smooth sliding and avoids jamming or derailment.

[0016] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0017] This battery cell baking tray structure, through the use of multi-layer heat-conducting plates and a vent design, ensures both rapid and uniform heat conduction and efficient water vapor discharge, avoiding uneven heating and poor dehumidification during battery cell baking. The bolt fixing and gap arrangement achieve precise positioning and stable load-bearing of the battery cells, while also allowing for flexible production of battery cells of different sizes. The gap between the heat-conducting plates and the battery cell body allows heat to evenly coat the battery cell, achieving uniform drying. The snap-fit ​​design of the top cover, combined with the stacking structure, significantly improves batch processing capacity within a limited space, enabling a more uniform heat distribution during the baking process. Attached Figure Description

[0018] Figure 1 This is a sectional view of the overall structure of this application from top view;

[0019] Figure 2 For this application Figure 1 Enlarged schematic diagram of the structure at point A;

[0020] Figure 3 This is a schematic diagram of the heat-conducting plate structure of this application;

[0021] Figure 4This is a schematic diagram of the cover plate structure of this application;

[0022] Figure 5 This is a schematic diagram of the overall structure of this application;

[0023] Figure 6 This is a schematic diagram of the slide structure of this application.

[0024] In the picture:

[0025] 1. Tray frame; 2. Heat-conducting plate; 3. Cover plate; 4. Vent hole; 5. Base plate; 6. Battery cell body; 7. Discharge hole; 8. Bracket; 9. Restriction block; 10. Slide. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figures 1-6 This embodiment of a battery cell baking tray structure includes multiple tray frames 1, each tray frame 1 having multiple heat-conducting plates 2 inside. A cover plate 3 is snapped onto the upper surface of the uppermost tray frame 1. Each heat-conducting plate 2 has a set of ventilation holes 4 on its upper surface. Multiple sets of base plates 5 are bolted to the upper surface of each heat-conducting plate 2, with gaps between each set of base plates 5. A battery cell body 6 is placed on the upper surface of each set of base plates 5, with each battery cell body 6 located between each set of base plates 5. After the battery cell body 6 is installed on the base plate 5, there is a gap between it and the heat-conducting plate 2. This structure utilizes multiple layers of heat-conducting plates 2. The design of the ventilation holes 4 ensures rapid and uniform heat conduction and efficient water vapor discharge, avoiding uneven heating and poor dehumidification during the baking of the battery cell body 6. Through bolt fixing and gap arrangement, the precise positioning and stable bearing of the battery cell are achieved, and it can also be adapted to the flexible production of battery cells of different sizes. Since there is a gap between the heat conduction plate 2 and the battery cell body 6, the heat can be evenly wrapped around the battery cell body 6, achieving uniform drying of the battery cell body 6. The snap-fit ​​design of the top cover plate 3, combined with the stacked structure, greatly improves the batch processing capacity in a limited space, so that the battery cell can obtain a more uniform heat field distribution during the baking process.

[0028] The upper surface of the cover plate 3 has multiple discharge holes 7 arranged in a matrix. The discharge holes 7 facilitate the rapid dissipation of water vapor during the baking process, preventing steam from accumulating inside the tray and improving drying efficiency. At the same time, the matrix arrangement ensures uniform airflow and prevents excessive local humidity. Each tray frame 1 has a bracket 8 fixedly connected to its inner wall. Each heat-conducting plate 2 is bolted to its adjacent bracket 8. Fixing the bracket 8 to the heat-conducting plate 2 enhances the stability of the heat-conducting plate 2, prevents high-temperature deformation, and facilitates disassembly and maintenance, improving the durability and maintainability of the tray structure.

[0029] Multiple tray frames 1 are stacked and interlocked with each other. This stacked arrangement improves space utilization and facilitates batch baking operations. The interlocking structure ensures stable stacking and prevents displacement or tipping during baking. Each substrate 5 has a slidable limiting block 9 in a groove on its upper surface. Each limiting block 9 is fixedly connected to its adjacent limiting block 9 by bolts. Each limiting block 9 contacts its adjacent battery cell body 6. The position of the limiting blocks 9 can be flexibly adjusted to accommodate batteries of different sizes, ensuring that the batteries remain fixed during baking and preventing displacement due to vibration or airflow. Each frame has a set of slide blocks 10 fixedly connected to its outer surface. The bottom slot of each slide block 10 is T-shaped, allowing the tray frame 1 to move easily along the external track, improving automation and reducing manual handling. The T-shaped slot design ensures smooth sliding and prevents jamming or derailment.

[0030] The working principle of the above embodiment is as follows: When fixing the battery cell body 6, the battery cell body 6 is placed on two substrates 5, and the sliding limiting block 9 contacts the battery cell body 6. Then, the limiting block 9 is fixed by bolts, so that the battery cell body 6 can be locked on the two substrates 5. This achieves both precise positioning and stable bearing of the battery cell body 6, and also adapts to the flexible production of battery cell bodies 6 of different sizes. During the baking process, hot air can be distributed between multiple tray frames 1 through the vent holes 4. Since there is a gap between the battery cell body 6 and the heat-conducting plate 2 after installation, the hot air can evenly wrap the battery cell body 6. During the baking process, the snap-fit ​​design of the top cover plate 3, combined with the stacked structure, greatly improves the batch processing capacity in a limited space, so that the battery cell body 6 obtains a more uniform heat field distribution during the baking process. The moisture generated during baking will be discharged to the outside through the exhaust hole 7.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell baking tray structure, comprising multiple tray frames (1), characterized in that: Each of the tray frames (1) is provided with multiple heat-conducting plates (2) inside. A cover plate (3) is snapped onto the upper surface of the uppermost tray frame (1). Each heat-conducting plate (2) has a set of ventilation holes (4) on its upper surface. Each heat-conducting plate (2) has multiple sets of base plates (5) installed on its upper surface by bolts. There is a gap between each set of base plates (5). Each set of base plates (5) has a battery cell body (6) placed on its upper surface. Each battery cell body (6) is located between each set of base plates (5).

2. The battery cell baking tray structure according to claim 1, characterized in that: The upper surface of the cover plate (3) is provided with a plurality of discharge holes (7), which are distributed in a matrix.

3. The battery cell baking tray structure according to claim 1, characterized in that: Each of the tray frames (1) has a bracket (8) fixedly connected to its inner wall, and each of the heat-conducting plates (2) is connected to its adjacent bracket (8) by bolts.

4. The battery cell baking tray structure according to claim 1, characterized in that: Multiple pallet frames (1) are stacked and each pallet frame (1) is interlocked with the others.

5. The battery cell baking tray structure according to claim 1, characterized in that: Each of the substrates (5) has a slidably connected limiting block (9) in the groove on the upper surface of each substrate (5). Each limiting block (9) is fixedly connected to the limiting block (9) adjacent to it by bolts. Each limiting block (9) is in contact with the cell body (6) adjacent to it.

6. The battery cell baking tray structure according to claim 1, characterized in that: Each of the frames has a set of slides (10) fixedly connected to its outer surface, and the bottom slot of each slide (10) is T-shaped.

Images