Square aluminum shell battery package

Abstract

The utility model relates to the technical field of battery cell packaging, and particularly discloses a square aluminum shell battery package, which comprises a bottom support foam board, a plurality of middle-layer foam boards and a top cover foam board, and interval foam boards are arranged at the top of the bottom support foam board, the bottoms and the tops of the plurality of middle-layer foam boards and the bottom of the top cover foam board; and the films are arranged in the middle positions of the middle-layer foam plates and the top cover foam plate. According to the utility model, the pole on the battery cell is propped against the thin film, so that the pole on the battery cell can be effectively prevented from being stained by powder falling balls due to friction between the pole on the battery cell and the foam plate, the problem of frequent abnormal welding during later welding work is avoided, and the battery cell welding efficiency is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell packaging technology, and in particular relates to a square aluminum-cased battery packaging. Background Technology

[0002] Square aluminum-cased energy storage cells need to be neatly placed on foam boards and stacked together during transportation. Current packaging for square aluminum-cased energy storage cells involves placing the cell on one foam board, then another foam board on top, and so on. However, during transportation, due to shaking and other factors, the cell easily rubs against the foam boards, causing powder balls to be rubbed off. These powder balls easily adhere to the cell's terminals, increasing the probability of welding abnormalities caused by foreign objects during the cell assembly welding process, thus reducing the cell welding efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a square aluminum-cased battery packaging to solve the technical problem that the battery cell is prone to friction with the foam board, causing the foam board to be rubbed into powder balls. These powder balls are easily adsorbed on the terminals of the battery cell, which increases the probability of welding abnormalities caused by foreign objects during the battery cell assembly welding process.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A square aluminum-cased battery package, the package comprising:

[0006] The bottom support foam board, several middle layer foam boards and a top cover foam board are provided with spacer foam boards at the top of the bottom support foam board, the bottom and top of the several middle layer foam boards and the bottom of the top cover foam board.

[0007] A film is provided between several of the middle layer foam boards and the top cover foam board.

[0008] As a preferred embodiment of the above technical solution, the middle layer foam board includes a foam frame one and a foam frame two, each of which is provided with a spacer foam board, and a film is provided between the foam frame one and the foam frame two. The top cover foam board includes a foam frame three and a top cover, each of which is provided with a spacer foam board, and a film is provided between the foam frame three and the top cover.

[0009] As a preferred embodiment of the above technical solution, the bottom of the film is provided with several gaskets.

[0010] As a preferred embodiment of the above technical solution, the upward projection of the spacer foam board on the bottom foam board coincides with the spacer foam board on the first foam frame of the bottom middle foam board, the spacer foam board on the first foam frame of the bottom middle foam board is perpendicular to the spacer foam board on the second foam frame of the bottom middle foam board, and so on, the upward projection of the spacer foam board on the second foam frame of the top middle foam board coincides with the spacer foam board on the third foam frame.

[0011] As a preferred embodiment of the above technical solution, the spacer foam board is provided with a number of horizontally and vertically intersecting partitions, which form a number of compartments, in which battery cells are placed, and each partition is provided with a chamfer.

[0012] As a preferred embodiment of the above technical solution, several grooves are provided on the partitions of the spacer foam board inside the base foam board and the partitions of the spacer foam board inside the second foam frame.

[0013] As a preferred embodiment of the above technical solution, a number of gathering straps are connected between the bottom support foam board and the top cover foam board.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, by abutting the electrode post on the battery cell against the thin film, it is possible to effectively prevent the electrode post on the battery cell from rubbing against the foam board, which would cause powder balls to fall off and dirty the electrode post. This avoids the problem of frequent welding abnormalities during the subsequent welding work, thereby improving the welding efficiency of the battery cell.

[0016] 2. In this utility model, by abutting the top of the battery cell against the gasket, with the pole located in the hollowed-out part in the middle of the gasket and the top of the pole against the film, the pole can be sealed inside the film and the gasket, thereby further preventing the pole on the battery cell from rubbing against the foam board, which would cause powder balls to fall and dirty the pole.

[0017] 3. In this utility model, the cells in the same layer are parallel to each other, and the cells in adjacent layers are perpendicular to each other. This vertical placement of the cells in the upper and lower layers is more compatible with the movement trajectory of the robotic arm that automatically picks up cells in the PACK production line, saving the time for the robotic arm to turn around and improving the feeding efficiency. At the same time, the vertical placement of the cells in the upper and lower layers makes each layer of cells more stable after placement, less prone to shaking, and effectively avoids damage to the cells due to violent shaking during the transfer process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the base foam board structure;

[0020] Figure 3This is a schematic diagram of the exploded structure of the top cover foam board;

[0021] Figure 4 This is a schematic diagram of the exploded structure of the middle layer foam board.

[0022] In the picture:

[0023] 1. Base foam board; 2. Middle layer foam board; 21. Foam frame one; 22. Foam frame two; 3. Top cover foam board; 31. Foam frame three; 32. Top cover; 4. Gathering strap; 5. Spacer foam board; 6. Film; 7. Gasket; 8. Chamfer; 9. Groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, a square aluminum-cased battery package includes:

[0026] The bottom support foam board 1, several middle layer foam boards 2 and top cover foam board 3 are provided with spacer foam boards 5 at the top of the bottom support foam board 1, the bottom and top of several middle layer foam boards 2 and the bottom of the top cover foam board 3.

[0027] The film 6 is provided in the middle of several middle layer foam boards 2 and top cover foam board 3.

[0028] Furthermore, the middle layer foam board 2 includes a foam frame 1 21 and a foam frame 22, both of which are provided with spacer foam boards 5, and a film 6 is provided between the foam frame 1 21 and the foam frame 22. The top cover foam board 3 includes a foam frame 31 and a top cover 32, both of which are provided with spacer foam boards 5, and a film 6 is provided between the foam frame 31 and the top cover 32.

[0029] In one embodiment, film 6 is a transparent polymer film with extensibility.

[0030] In practical applications, the electrode posts on the battery cell abut against the thin film 6, which can effectively prevent the electrode posts on the battery cell from rubbing against the foam board, causing powder balls to fall and dirty the electrode posts. This avoids frequent welding abnormalities during subsequent welding work, thereby improving the welding efficiency of the battery cell.

[0031] Furthermore, the bottom of the film 6 is provided with several gaskets 7.

[0032] In one embodiment, the middle part of the gasket 7 is hollowed out, and the gasket 7 is made of sponge material.

[0033] In practical application, the top of the battery cell abuts against the gasket 7, the terminal is located in the hollow part in the middle of the gasket 7, and the top of the terminal abuts against the film 6. This seals the terminal inside the film 6 and the gasket 7, thereby further preventing the terminal on the battery cell from rubbing against the foam board, which would cause powder balls to fall and dirty the terminal. In addition, the gasket 7 can buffer the battery cell, effectively preventing the battery cell from being damaged by violent shaking during transportation.

[0034] like Figures 1-4 As shown, the upward projection of the spacer foam board 5 on the bottom foam board 1 coincides with the spacer foam board 5 on the foam frame 21 of the bottom middle foam board 2. The spacer foam board 5 on the foam frame 21 of the bottom middle foam board 2 is perpendicular to the spacer foam board 5 on the foam frame 22 of the bottom middle foam board 2. Similarly, the upward projection of the spacer foam board 5 on the foam frame 22 of the top middle foam board 2 coincides with the spacer foam board 5 on the foam frame 31.

[0035] In practical applications, the spacing foam boards 5 at different locations are arranged differently, so that the cells in the same layer are parallel to each other and the cells in adjacent layers are perpendicular to each other. This vertical placement of the upper and lower layers of cells is more compatible with the movement trajectory of the automated cell-grabbing robot in the PACK production line, saving the time for the robot to turn around and improving feeding efficiency. At the same time, the vertical placement of the upper and lower layers of cells makes each layer of cells more stable after placement and less prone to shaking, effectively preventing the cells from being damaged by violent shaking during the transfer process.

[0036] like Figure 2 and Figure 4 As shown, the spacer foam board 5 has several horizontal and vertically intersecting partitions, which form several compartments. The battery cells are placed in the compartments, and each partition has a chamfer 8.

[0037] In practical applications, the chamfer 8 in this embodiment facilitates the placement of the battery cell into the compartment of the spacer foam board 5. It also makes it easier for the robotic arm to easily remove the battery cell from the foam board during automated gripping. At the same time, the inner wall below the chamfer 8 is designed to be perpendicular to the bottom surface to prevent the battery cell from tilting during transport.

[0038] Furthermore, several grooves 9 are provided on the partitions of the spacer foam board 5 inside the base foam board 1 and the spacer foam board 5 inside the foam frame 22.

[0039] In practical applications, the groove 9 can contain desiccant, with the amount of desiccant depending on the actual situation. Compared to the scattered placement of desiccant in the prior art, this design avoids the risk of desiccant falling into the compartment of the spacer foam board 5 and affecting the removal of the battery cell. On the other hand, placing the desiccant on the side of the battery cell also avoids interfering with the robot arm's gripping of the large surface of the battery cell. Moreover, the neatly placed desiccant does not need to be manually removed before the entire tray of battery cells is transported to the PACK production line, reducing time and labor costs.

[0040] like Figure 1 As shown, several binding straps 4 connect the bottom foam board 1 and the top foam board 3.

[0041] In practical applications, the several gathering straps 4 can wrap the bottom foam board 1, several middle foam boards 2 and the top foam board 3, effectively preventing the bottom foam board 1, several middle foam boards 2 and the top foam board 3 from shifting, preventing the battery cell from tilting, thereby improving the overall stability of the packaging during transportation and preventing damage to the battery cell.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A square aluminum can battery package characterized by, The package comprises: a bottom support foam plate (1), a plurality of middle layer foam plates (2) and a top cover foam plate (3), the top of the bottom support foam plate (1), the bottom and top of the plurality of middle layer foam plates (2) and the bottom of the top cover foam plate (3) are each provided with a spacing foam plate (5); a film (6), the middle position of each of the plurality of middle layer foam plates (2) and the top cover foam plate (3) is provided with a film (6); the middle layer foam plate (2) comprises a foam frame one (21) and a foam frame two (22), the spacing foam plate (5) is arranged in the foam frame one (21) and the foam frame two (22), the film (6) is arranged between the foam frame one (21) and the foam frame two (22), the top cover foam plate (3) comprises a foam frame three (31) and a top cover (32), the spacing foam plate (5) is arranged in the foam frame three (31), and the film (6) is arranged between the foam frame three (31) and the top cover (32); the bottom of the film (6) is provided with a plurality of gaskets (7).

2. The square aluminum can battery package of claim 1, wherein, The upward projection of the spacing foam plate (5) on the bottom support foam plate (1) coincides with the spacing foam plate (5) on the foam frame one (21) in the lowermost middle layer foam plate (2), the spacing foam plate (5) on the foam frame one (21) in the lowermost middle layer foam plate (2) is perpendicular to the spacing foam plate (5) on the foam frame two (22) in the lowermost middle layer foam plate (2), and so on, the upward projection of the spacing foam plate (5) on the foam frame two (22) in the uppermost middle layer foam plate (2) coincides with the spacing foam plate (5) on the foam frame three (31).

3. The square aluminum can battery package of claim 1, wherein, The spacing foam plate (5) is provided with a plurality of transverse and longitudinal staggered partitions, a plurality of compartments are surrounded by the partitions, the battery cell is placed in each compartment, and a chamfer (8) is arranged on each partition.

4. The square aluminum can battery package of claim 3, wherein, A plurality of grooves (9) are formed in the partitions of the spacing foam plate (5) in the bottom support foam plate (1) and the spacing foam plate (5) in the foam frame two (22).

5. The square aluminum can battery package of claim 1, wherein, A plurality of binding belts (4) are connected between the bottom support foam plate (1) and the top cover foam plate (3).

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