Formation and capacity grading tray for cylindrical battery

Abstract

The utility model provides a formation and capacity grading tray for a cylindrical battery, and belongs to the technical field of battery production. The formation and capacity grading tray for the cylindrical batteries comprises a square base plate and a limiting plate, the base plate comprises a frame and a grid column, the edge of the grid column is fixedly connected with the frame through a connecting plate, the grid column comprises a plurality of square unit grids used for containing the single cylindrical batteries, and the limiting plate is square and fixed to the grid column through bolts. The limiting plate is provided with limiting round holes which are distributed in a matrix mode, and the hole wall of each limiting round hole is provided with a plurality of arc-shaped clamping blocks which are arranged in the circumferential direction; a right-angle heightening fence is further included, the right-angle position of the heightening fence is provided with an inwards-concave groove, the right-angle position of the frame is provided with a protruding protruding block, the protruding block is clamped into the groove, a plurality of connecting holes are formed in the heightening fence, a plurality of first threaded holes are formed in the frame, and the connecting holes are aligned with the first threaded holes in a one-to-one mode. Heightening columns can be additionally arranged according to the heights of the cylindrical batteries so as to adapt to the cylindrical batteries with different heights.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production and relates to a packaging tray for cylindrical batteries. Background Art

[0002] Capacity separation is a crucial step in the lithium battery production process, encompassing two main steps: formation and capacity separation. Formation involves charging with a low current to form a dense and stable SEI layer on the negative electrode surface. Capacity separation involves charging and discharging the batteries according to design specifications to measure their capacity and classify them into groups. These two steps are crucial for ensuring battery consistency, safety, and high quality for a long cycle life. During the capacity separation process, lithium batteries are moved between different equipment and workstations on pallets, then batched and capacity separated. Existing pallets are typically injection-molded plastic. Because pallets are sometimes stacked, they must be taller than the batteries to protect them from crushing during stacking. If the loaded batteries are taller than the pallet, a pallet matching the battery height must be replaced. This requires remanufacturing pallets of a new size, wasting material and increasing production costs. Utility Model Content

[0003] The purpose of the present utility model is to address the above-mentioned problems in the existing technology and to propose a cylindrical battery packing tray. A heightening bar can be installed according to the height of the cylindrical battery so that the overall frame is higher than the height of the cylindrical battery, which can prevent the cylindrical batteries from being squeezed when the trays are stacked.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a cylindrical battery pack tray, comprising a square chassis and a limiting plate, characterized in that the chassis comprises a frame and a grid column, the edge of the grid column is fixedly connected to the frame by a connecting plate, the grid column comprises a plurality of square unit grids for placing a single cylindrical battery, the four side walls of the unit grid are provided with a protruding vertically arranged clamping strip, the bottom of the unit grid is connected to a support ring capable of contacting the bottom of the cylindrical battery through the clamping strip, the limiting plate is square and is fixed to the grid column by bolts, the limiting plate is provided with limiting circular holes distributed in a matrix, the limiting circular holes are aligned one by one with the unit grids, and the hole walls of the limiting circular holes are provided with a plurality of circumferentially arranged arc-shaped clamp blocks;

[0005] It also includes a right-angled height-increasing bar, which has a concave groove at the right angle of the height-increasing bar, and a raised bump at the right angle of the frame, which is snapped into the groove. The height-increasing bar is provided with a plurality of connecting holes, and the frame is provided with a plurality of first threaded holes, and the connecting holes are aligned one by one with the first threaded holes.

[0006] Furthermore, the support ring is elliptical, and reinforcing rods are connected between the support ring and the four corners of the unit grid.

[0007] Furthermore, each limiting circular hole is provided with four arc-shaped clamp blocks which are arranged at equal distances.

[0008] Furthermore, the bottom of the limit plate has a raised positioning sleeve, the grid bar has a positioning groove, the bottom of the positioning groove has a second threaded hole, the positioning sleeve is engaged with the positioning groove, and the bolt is inserted from the positioning sleeve and screwed into the second threaded hole to achieve fixation.

[0009] Furthermore, the bottom of the height-increasing fence is provided with a plurality of positioning posts, and the upper surface of the frame is provided with positioning holes for the positioning posts to be embedded in.

[0010] Furthermore, the height of the grid column is greater than 1 / 2 of the height of the cylindrical battery.

[0011] First, install the limit plate to the grid column with bolts, and install the heightening column to the frame with bolts. The four heightening columns just form a square. Then insert the cylindrical batteries into the unit grid one by one. The connections are firm. The cylindrical batteries are stable and safe when transferring the entire pallet.

[0012] Compared with the existing technology, the cylindrical battery pack has the following advantages:

[0013] 1. According to the height of the cylindrical battery, a heightening bar can be installed so that the frame as a whole is higher than the height of the cylindrical battery. This can prevent the cylindrical battery from being squeezed when the trays are stacked.

[0014] 2. The limit plate is used to clamp the cylindrical battery. Together with the clamping strips in the unit grid, it can firmly lock the cylindrical battery to prevent it from tipping over or escaping from the grid.

[0015] 3. The entire pallet structure is stable and the heightening rails are firmly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the cylindrical battery's component capacity tray.

[0017] Figure 2 This is a partial schematic diagram of the chassis.

[0018] Figure 3 It is a structural diagram of the height increasing bar.

[0019] Figure 4 It is a structural diagram of the limiting plate.

[0020] In the figure, 1. chassis; 11. frame; 12. grid bar; 13. connecting plate; 14. unit grid; 15. clamping strip; 16. support ring; 17. reinforcing rod; 18. protrusion; 19. first threaded hole; 110. positioning groove; 111. second threaded hole; 112. positioning hole; 2. limiting plate; 21. limiting circular hole; 22. arc-shaped clamp block; 23. positioning sleeve; 3. cylindrical battery; 4. heightening bar; 41. groove; 42. connecting hole; 43. positioning column. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1-2 As shown, the cylindrical battery pack tray includes a square chassis 1 and a limiting plate 2. The chassis 1 includes a frame 11 and a grid bar 12. The edge of the grid bar 12 is fixedly connected to the frame 11 by a connecting plate 13. The height of the grid bar 12 is greater than 1 / 2 of the height of the cylindrical battery 3. The grid bar 12 includes a plurality of square unit grids 14 for placing a single cylindrical battery 3. The four side walls of the unit grid 14 are provided with a protruding vertical clamping strip 15. The bottom of the unit grid 14 is connected to a support ring 16 that can contact the bottom of the cylindrical battery 3 through the clamping strip 15. The support ring 16 is elliptical, and a reinforcing rod 17 is connected between the support ring 16 and the four corners of the unit grid 14.

[0023] like Figure 4 As shown, the limiting plate 2 is square and is fixed to the grid bar 12 by bolts. The limiting circular holes 21 distributed in a matrix are opened on the limiting plate 2. The limiting circular holes 21 are aligned one by one with the unit grids 14. The hole walls of the limiting circular holes 21 are provided with a plurality of circumferentially arranged arc-shaped clamp blocks 22, and each limiting circular hole 21 has four equidistantly arranged arc-shaped clamp blocks 22.

[0024] The bottom of the limit plate 2 has a raised positioning sleeve 23, and the grid bar 12 has a positioning groove 110. The bottom of the positioning groove 110 has a second threaded hole 111. The positioning sleeve 23 is engaged with the positioning groove 110. A bolt is inserted into the positioning sleeve 23 and screwed into the second threaded hole 111 to secure it.

[0025] like Figure 3 As shown, the cylindrical battery pack capacity tray also includes a right-angled heightened column 4, which is arranged on the upper end surface of the frame 11. The right angle of the heightened column 4 has a concave groove 41, and the right angle of the frame 11 has a raised bump 18, which is inserted into the groove 41. A plurality of connecting holes 42 are provided on the heightened column 4, and a plurality of first threaded holes 19 are provided on the frame 11. The connecting holes 42 are aligned one by one with the first threaded holes 19.

[0026] The bottom of the height-increasing fence 4 has a plurality of positioning posts 43 , and the upper surface of the frame 11 has positioning holes 112 for the positioning posts 43 to be embedded in. The positioning posts 43 improve the connection stability of the height-increasing fence 4 .

[0027] Installation method: First, install the limit plate 2 on the grid column 12 by bolts, and install the heightening column 4 on the frame 11 by bolts. The four heightening columns 4 just form a square. Then insert the cylindrical batteries 3 one by one into the unit grid 14. The connection is firm. The cylindrical batteries 3 are stable and safe when transferring the entire pallet.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A cylindrical battery pack tray, comprising a square bottom plate (1) and a limiting plate (2), characterized in that: The chassis (1) includes a frame (11) and a grid bar (12), the edge of the grid bar (12) is fixedly connected to the frame (11) via a connecting plate (13), the grid bar (12) includes a plurality of square unit grids (14) for placing a single cylindrical battery (3), the four side walls of the unit grid (14) are provided with protruding vertically arranged clamping strips (15), the bottom of the unit grid (14) is connected to a supporting ring (16) capable of contacting the bottom of the cylindrical battery (3) via the clamping strip (15), the limiting plate (2) is square and is fixed to the grid bar (12) by bolts, the limiting plate (2) is provided with limiting circular holes (21) distributed in a matrix, the limiting circular holes (21) are aligned one by one with the unit grids (14), and the hole wall of the limiting circular hole (21) is provided with a plurality of circumferentially arranged arc-shaped clamp blocks (22); The utility model further comprises a right-angled height-increasing fence (4), wherein the right angle of the height-increasing fence (4) comprises an inwardly concave groove (41), the right angle of the frame (11) comprises a raised bump (18), the bump (18) is snapped into the groove (41), a plurality of connecting holes (42) are formed on the height-increasing fence (4), a plurality of first threaded holes (19) are formed on the frame (11), and the connecting holes (42) are aligned one by one with the first threaded holes (19).

2. The cylindrical battery packing tray according to claim 1, characterized in that: The support ring (16) is elliptical in shape, and reinforcement rods (17) are connected between the support ring (16) and the four corners of the unit grid (14).

3. The cylindrical battery packing tray according to claim 2, characterized in that: Each limiting circular hole (21) is provided with four arc-shaped clamp blocks (22) arranged at equal distances.

4. The cylindrical battery packing tray according to claim 3, characterized in that: The bottom of the limiting plate (2) is provided with a raised positioning sleeve (23), the grid bar (12) is provided with a positioning groove (110), the bottom of the positioning groove (110) is provided with a second threaded hole (111), and the positioning sleeve (23) is engaged with the positioning groove (110).

5. The cylindrical battery packing tray according to claim 1, characterized in that: The bottom of the height-increasing fence (4) is provided with a plurality of positioning posts (43), and the upper surface of the frame (11) is provided with positioning holes (112) for the positioning posts (43) to be embedded.

6. The cylindrical battery packing tray according to claim 5, characterized in that: The height of the grid bar (12) is greater than 1 / 2 of the height of the cylindrical battery (3).

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