Mylar blister tray for power battery pack

By designing the power battery packed Maila blister disk, the problem of inaccurate positioning of the bare battery packed Mylar film in lithium battery manufacturing has been solved, and the precise protection of the battery cell and the low-cost recycling of the pallet is achieved.

CN222762991UActive Publication Date: 2025-04-15宁德聚能动力电源系统技术有限公司
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Patent Information

Application Number
CN202420393131.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-04-15
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

During the lithium battery manufacturing process, the Mylar film covered with bare battery cells requires precise positioning, otherwise it is easy to cause film position deviation and the battery cell is scrapped.

Method used

A power battery packed Maila blister disk is designed, including a blister disk body, limit groove, steps, anti-stasis angle and light-through hole. The strength of the pallet is increased through symmetrical design and step slope design, anti-stasis angle and jaw avoidance groove are set to prevent misoperation, and a foam pad groove is set on the pallet to buffer the friction between the battery cell and the pallet.

Benefits of technology

The precise positioning and protection of the bare cell is achieved, the film position deviation is avoided, and the battery cell scrap rate is reduced. At the same time, the pallet is cheap, recyclable and practical.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mylar blister tray for a power battery pack, and relates to a blister tray. Comprising a plastic uptake disc body, limiting grooves, steps, fool-proof corners and light through holes, the limiting grooves of symmetrical structures are formed in the middle of the plastic uptake disc body, top cover receding positions are formed in the upper portions of the limiting grooves, the steps are arranged on the plastic uptake disc body, the light through holes are formed in the centers of the limiting grooves, and bare cell bodies are placed in the limiting grooves through foam blocks; a plurality of kidney-shaped holes convenient to connect with a bottom support are formed in the periphery of the blister tray body, limiting columns are arranged in the middles of the front side edge and the rear side edge of the blister tray body, clamping jaw receding grooves are formed in the left side and the right side of the middle of each limiting groove, and a fool-proof corner is arranged at one corner of the blister tray body. The battery tray is reasonable in structural design and has a fool-proof function, the tray is provided with the foam pad groove which has a buffering function, poor appearance caused by friction between the ground of a battery cell and the surface of the tray is prevented, and the tray is low in cost, recyclable and high in practicability.
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Description

Technical Field

[0001] The utility model relates to a blister tray, in particular to a Mylar blister tray for a power battery pack. Background Art

[0002] In the manufacturing process of lithium batteries, the hot-melt Mylar film process for bare cells is a very important step in the battery preparation process. It plays a key role in ensuring the quality and safety of the battery. The Mylar film (Mylar film or Mylar film) is applied to the bare cells to protect the bare cells and prevent internal short circuits. The Mylar film die for bare cells needs to be precisely positioned, otherwise it is easy to cause deviation in the film position and lead to the scrapping of the cells. Therefore, a transport pallet for carrying bare cells is designed to achieve the goal of reducing costs and increasing efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a Mylar blister tray for a power battery pack, which has a reasonable structural design and an anti-foolproof function. The tray is provided with a foam pad groove for a buffering effect to prevent the poor appearance caused by the friction between the battery cell floor and the tray surface. The tray has low cost and can be recycled, and is highly practical.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a power battery pack Mylar blister tray, including a blister tray body, a limit groove, a step, an anti-stupid angle and a light-through hole, a limit groove with a symmetrical structure is arranged in the middle of the blister tray body, a top cover avoidance position is arranged on the upper part of the limit groove, a step is arranged on the blister tray body, a light-through hole is arranged in the center of the limit groove, a bare battery cell body is placed in the limit groove through a foam block, a plurality of waist-shaped holes for convenient connection with the bottom support are arranged around the blister tray body, a limit column is arranged in the middle of the front and rear sides of the blister tray body, claw avoidance grooves are arranged on the left and right sides of the middle of the limit groove, and an anti-stupid angle is arranged at one corner of the blister tray body.

[0005] Preferably, the blister tray body is a PET tray.

[0006] Preferably, a QR code label position is also provided on the blister tray body.

[0007] The beneficial effects of the utility model: the utility model has a reasonable structural design and an anti-fool function. The tray is provided with a foam pad groove with a buffering effect to prevent the poor appearance caused by the friction between the battery core ground and the tray surface. The tray is low in cost and can be recycled, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;

[0009] Figure 1 This is a schematic diagram of the structure of the utility model after the battery cell is installed;

[0010] Figure 2 It is a structural schematic diagram of the utility model; DETAILED DESCRIPTION

[0011] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0012] Reference Figure 1-2 The present specific implementation adopts the following technical scheme: a power battery pack Mylar blister tray, comprising a blister tray body 1, a limiting groove 2, a step 3, an anti-stupid corner 4 and a light-through hole 5. A symmetrically structured limiting groove 2 is arranged in the middle of the blister tray body 1, a top cover avoidance position 11 is arranged on the upper part of the limiting groove 2, a step 3 is arranged on the blister tray body 1, a light-through hole 5 is arranged in the center of the limiting groove 2, a bare battery cell body 7 is placed in the limiting groove 2 through a foam block 6, a plurality of waist-shaped holes 8 for convenient connection with the bottom bracket are arranged around the blister tray body 1, a limiting column 9 is arranged in the middle of the front and rear sides of the blister tray body 1, a clamping claw avoidance groove 10 is arranged on the left and right sides of the middle of the limiting groove 2, and an anti-stupid corner 4 is arranged at one corner of the blister tray body 1.

[0013] It is worth noting that the blister tray body 1 is made of a PET tray.

[0014] In addition, a QR code label position 12 is also provided on the blister tray body 1 .

[0015] The blister tray of this specific implementation method is designed with a bare cell limit groove, and the single-side gap between the bare cell limit groove and the bare cell is only 1.5mm, to prevent the error of the packaging Mylar caused by shaking. The entire tray is made of PET material with good flexibility through the blister process. Since the bare cell is relatively high, the tray adopts a step climbing design to increase the strength of the tray; the tray adopts a symmetrical design, that is, the poles of the bare cell can move forward or backward with high flexibility; the top cover of the tray adopts an air avoidance design to prevent scratches with the tray from causing damage to the top cover; the tray is equipped with an anti-stupid angle, and the infrared rays of the machine can detect the tray and stop the corresponding workstation; the tray is equipped with a manipulator gripper groove to facilitate the grabbing of the cell to complete the Mylar film; the tray is equipped with a QR code label, a waist-shaped hole to facilitate fixation with the bottom bracket, a positioning pin for precise positioning, and a light-through hole to facilitate the light curtain to detect whether there are missing cells on the tray.

[0016] In this specific embodiment, the tray is provided with a foam pad groove which has a buffering effect, thereby preventing the friction between the battery core floor and the tray surface from causing a poor appearance. The tray is low in cost, recyclable, and highly practical.

[0017] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A Mylar blister tray for a power battery pack, characterized in that: The invention comprises a blister tray body (1), a limiting groove (2), a step (3), an anti-stupid angle (4) and a light-through hole (5). A limiting groove (2) with a symmetrical structure is arranged in the middle of the blister tray body (1), a top cover avoiding space (11) is arranged on the upper part of the limiting groove (2), a step (3) is arranged on the blister tray body (1), a light-through hole (5) is arranged in the center of the limiting groove (2), a bare battery cell body (7) is placed in the limiting groove (2) through a foam block (6), a plurality of waist-shaped holes (8) for convenient connection with a bottom bracket are arranged around the blister tray body (1), a limiting column (9) is arranged in the middle of the front and rear sides of the blister tray body (1), a clamping claw avoiding groove (10) is arranged on the left and right sides of the middle of the limiting groove (2), and an anti-stupid angle (4) is arranged at one corner of the blister tray body (1).

2. The Mylar blister tray for power battery pack according to claim 1, characterized in that: The blister tray body (1) is a PET tray.

3. The Mylar blister tray for power battery pack according to claim 1, characterized in that: The blister tray body (1) is also provided with a two-dimensional code label position (12).