Battery cell lower plastic dislocation detection tool

By designing a tooling for detecting misalignment of the plastic under the battery cell, and using detection pins to identify the installation status of the top cover and the bottom plastic, the problem of low production yield caused by misalignment of the top cover and the bottom plastic in lithium battery production was solved, achieving efficient identification and preventing missed detection.

CN223564889UActive Publication Date: 2025-11-18XIAOGAN CORNEX NEW ENERGY INNOVATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423141044.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-18
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

In the existing lithium battery production process, misalignment of the top cover and the bottom plastic leads to low production yield, and manual identification is inefficient and prone to missed detection.

Method used

Design a tooling for detecting misalignment of the plastic under the battery cell, including a base plate, a top plate, and detection pins. The detection pins pass through detection holes and align with the holes in the top cover and the plastic under the cell to identify the installation status of the top cover and the plastic under the cell, ensuring that the top cover is placed stably on the top plate.

Benefits of technology

It improves identification efficiency, reduces missed detections, prevents misaligned structures from continuing production, and increases production yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a battery cell lower plastic cement dislocation detection tool, and belongs to the field of new energy batteries. The tool comprises a bottom plate, a top plate and detection nails, the top plate and the bottom plate are arranged in parallel at intervals, the detection nails are vertically arranged on the bottom plate, detection holes matched with the detection nails are formed in the top plate, and the detection nails are arranged in the detection holes in a penetrating mode. By adopting the battery cell lower plastic cement dislocation detection tool provided by the embodiment of the utility model, the problem of low identification efficiency in the prior art can be solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a new energy battery field, especially relates to a cell lower plastic dislocation detection tool. BACKGROUND

[0002] With the wide application of lithium battery, the production yield of lithium battery is more and more strict, and in the process of producing lithium battery, the installation of battery top cover and lower plastic is an important step of assembling lithium battery, and it greatly influences the production yield.

[0003] The liquid injection hole is usually not located at the center of the top cover, and when the top cover and the lower plastic are installed, the liquid injection hole on the top cover and the opening on the lower plastic need to be aligned before installation, but in the actual production process, the top cover and the lower plastic are usually installed reversely, so that the liquid injection hole and the opening on the lower plastic are not aligned, thereby causing the installation dislocation of the lower plastic and affecting the production yield of the lithium battery.

[0004] The detection method in the prior art has low recognition efficiency and is prone to missed detection, thereby resulting in low production yield. CONTENT OF THE UTILITY MODEL

[0005] The utility model embodiment provides a cell lower plastic dislocation detection tool, and can solve the problem of low recognition efficiency in the prior art.

[0006] A cell lower plastic dislocation detection tool, comprising a bottom plate, a top plate and a detection nail,

[0007] The top plate and the bottom plate are arranged in parallel and are spaced apart, the detection nail is vertically arranged on the bottom plate, the top plate is provided with a detection hole matched with the detection nail, and the detection nail is arranged in the detection hole.

[0008] Optionally, the top plate is provided with a top cover mounting groove, and the detection hole is located in the top cover mounting groove.

[0009] Optionally, the bottom plate is a square structure, a plurality of detection nails are arranged, and the plurality of detection nails are uniformly and spacedly arranged along the length direction of the bottom plate.

[0010] Optionally, the detection nail is arranged in two rows, and the two rows of detection nails are spacedly arranged along the width direction of the bottom plate.

[0011] Optionally, the top cover mounting groove is provided with a pole mounting hole, and the pole mounting hole is provided with two, and is arranged on the two sides of the detection hole.

[0012] Optionally, positive and negative marks are arranged on the top plate, and the positive and negative marks are matched with the pole mounting hole.

[0013] Optionally, the top plate is detachably connected with the bottom plate.

[0014] Optionally, the detection nail is detachably connected with the bottom plate.

[0015] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

[0016] The utility model discloses a kind of lower plastic misplacement detection tool of battery cell, detection nail is set out through detection hole, top cover to be detected is placed on top plate, so that the hole on the lower plastic located at the bottom of top cover is aligned with detection nail and presses downward, when top cover and lower plastic are installed normally, detection nail can pass through the hole on lower plastic and the injection hole on top cover, so that top cover can be placed steadily on top plate, when top cover and lower plastic are installed misplacement, detection nail can only pass through the hole on lower plastic, and cannot pass through the injection hole on top cover, so that top cover cannot be placed steadily on top plate, so that misplacement top cover and lower plastic structure can be distinguished by this structure, it is recycled, prevent it continue to carry out subsequent production assembly, affect product yield. Through the structure in the embodiment, the problem of low recognition efficiency in the prior art can be effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Fig. 1 It is the overall structure schematic diagram provided by the embodiment of the utility model;

[0019] Fig. 2 It is the main view schematic diagram of overall structure provided by the embodiment of the utility model;

[0020] Fig. 3 It is the top plate structure schematic diagram provided by the embodiment of the utility model.

[0021] In the figure: 1-bottom plate;2-top plate;21-detection hole;22-top cover mounting groove;23-pole mounting hole;24-positive mark;25-negative mark;3-detection nail;4-limiting support block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model embodiment will be described in further detail below with reference to the drawings.

[0023] Fig. 1 It is the whole structure schematic diagram provided by the utility model embodiment; Fig. 2 It is the whole structure main view schematic diagram provided by the utility model embodiment; Fig. 3 It is the top plate structure schematic diagram provided by the utility model embodiment. Figs. 1 to 3 As shown in a kind of cell lower plastic misplacement detection tool, it include: bottom plate 1, top plate 2 and detection peg 3, top plate 2 and bottom plate 1 are arranged in parallel with interval, detection peg 3 is vertically arranged on bottom plate 1, top plate 2 is provided with detection hole 21 matched with detection peg 3, detection peg 3 is arranged in detection hole 21.

[0024] Exemplarily, in the utility model embodiment, limiting support block 4 is arranged on the four corners of bottom plate 1, limiting slot matched with the four corners of top plate 2 is arranged on limiting support block 4, and top plate 2 is installed by matching with the limiting slot of the four limiting support blocks 4, so that it is arranged in parallel with interval on bottom plate. The tool is used for detecting the top cover and lower plastic whole structure which have been installed, liquid injection hole is arranged on the top cover, and hole matched with the liquid injection hole is arranged on the lower plastic, by placing the top cover and lower plastic whole structure on top plate 2, and aligning detection peg 3 passing through top plate 2 with the hole on the lower plastic, and pressing the top cover and lower plastic whole structure downward, when the top cover and lower plastic are installed normally, detection peg 3 can pass through the hole on the lower plastic and the liquid injection hole on the top cover, so that the top cover can be placed stably on top plate 2, when the top cover and lower plastic are installed misplacement, detection peg 3 can only pass through the hole on the lower plastic, but cannot pass through the liquid injection hole on the top cover, so that the top cover cannot be placed stably on top plate 2, so that the top cover and lower plastic structure installed misplacement can be distinguished by the structure.

[0025] The utility model embodiment provides a kind of cell lower plastic misplacement detection tool, detection peg 3 passes through detection hole 21 and extends out top plate 2 setting, the top cover to be detected is placed on top plate, so that the hole on the lower plastic located at the bottom of top cover is aligned with detection peg 3 and presses downward, when the top cover and lower plastic are installed normally, detection peg 3 can pass through the hole on the lower plastic and the liquid injection hole on the top cover, so that the top cover can be placed stably on top plate 2, when the top cover and lower plastic are installed misplacement, detection peg 3 can only pass through the hole on the lower plastic, but cannot pass through the liquid injection hole on the top cover, so that the top cover cannot be placed stably on top plate 2, so that the top cover and lower plastic structure installed misplacement can be distinguished by the structure, it is recycled and handled, prevent it continue to carry out subsequent production assembly, affect product yield. Through the structure in the embodiment, the problem of low identification efficiency in the prior art can be effectively solved.

[0026] Optionally, the top plate 2 is provided with a top cover mounting groove 22, and the detection hole 21 is located in the top cover mounting groove 22.

[0027] Exemplarily, in the embodiment of the utility model, through set up top cover mounting groove 22, can put top cover and lower plastic whole structure into top cover mounting groove 22 and limit, prevent top cover and lower plastic whole structure from moving in horizontal direction and influence detection result, through set up this structure, improved the stability of this tooling.

[0028] Optionally, the bottom plate 1 is a square structure, and the detection pin 3 is provided with a plurality of detection pins 3, and the plurality of detection pins 3 are uniformly and interval arranged along the length direction of the bottom plate 1.

[0029] Exemplarily, in the embodiment of the utility model, through set up a plurality of detection pins 3, can detect a plurality of top covers and lower plastic whole structures simultaneously, when using mechanical arm to clamp a plurality of top covers and lower plastic whole structures simultaneously and place on this tooling to detect, can multiply the detection efficiency, to further improve the identification efficiency of this tooling.

[0030] Optionally, the detection pin 3 is provided with two rows, and the two rows of detection pins 3 are interval arranged along the width direction of the bottom plate 1.

[0031] Exemplarily, in the embodiment of the utility model, through set up a plurality of detection pins 3, can further expand the number of stations detected simultaneously, to further improve the detection efficiency, thereby further improve the identification efficiency of this tooling.

[0032] Optionally, the top cover mounting groove 22 is provided with a pole mounting hole 23, and the pole mounting hole 23 is provided with two, and is arranged on the two sides of the detection hole 21.

[0033] Exemplarily, in the embodiment of the utility model, through set up pole mounting hole 23, can further prevent the installation and positioning of top cover and lower plastic whole structure in top cover mounting groove 22, so that the measured piece can be placed in the detection station more conveniently, to improve the operation convenience of this tooling.

[0034] Optionally, the top plate 2 is provided with a positive electrode mark 24 and a negative electrode mark 25, and the positive electrode mark 24 and the negative electrode mark 25 are matched with the pole mounting hole 23.

[0035] Exemplarily, in the embodiment of the utility model, through setting positive pole mark 24 and negative pole mark 25 on top plate 2, the operator can conveniently identify the positive and negative positions of the top cover and the lower plastic whole structure installation, can align the positive pole post with the pole post mounting hole 23 beside positive pole mark 24 on the top cover, and install the negative pole post with the pole post mounting hole 23 beside negative pole mark 25, so that the top cover and the lower plastic whole structure can be correctly installed on the tooling, thereby conveniently detecting and identifying the top cover and the lower plastic whole structure, and further improving the operation convenience of the tooling.

[0036] Optionally, the top plate 2 and the bottom plate 1 are detachably connected.

[0037] Exemplarily, in the embodiment of the utility model, a plurality of top plates 2 can be provided, the top cover mounting grooves 22 on each top plate 2 are different in size, and through detachable connection of the top plate 2 and the bottom plate 1, the top plate 2 can be conveniently disassembled and replaced, so that the tooling can detect and identify top covers and lower plastic whole structures of different sizes, thereby improving the versatility of the tooling.

[0038] Optionally, the detection pin 3 and the bottom plate 1 are detachably connected.

[0039] Exemplarily, in the embodiment of the utility model, since the detection pin 3 needs to be frequently installed and disassembled with the top cover and the lower plastic whole structure, it will collide with them multiple times, thereby causing its service life to be short, and through detachable connection of the detection pin 3 and the bottom plate 1, the detection pin 3 can be replaced when it is worn out or damaged, thereby ensuring the structural strength and detection efficiency of the tooling.

[0040] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the common meaning as understood by one of ordinary skill in the art to which the utility model belongs. The terms "first", "second" and similar terms used in the utility model patent application specification and claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar terms do not represent a quantity limit, but represent the existence of at least one. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above merely describes optional embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tooling for detecting plastic misalignment under a battery cell, characterized in that, include: The base plate (1), the top plate (2), and the inspection nails (3) The top plate (2) and the bottom plate (1) are arranged in parallel and spaced apart. The detection nail (3) is vertically set on the bottom plate (1). The top plate (2) has a detection hole (21) that matches the detection nail (3). The detection nail (3) passes through the detection hole (21).

2. The tooling for detecting plastic misalignment under a battery cell according to claim 1, characterized in that, The top plate (2) is provided with a top cover mounting groove (22), and the detection hole (21) is located in the top cover mounting groove (22).

3. The tooling for detecting plastic misalignment under a battery cell according to claim 2, characterized in that, The base plate (1) has a square structure, and multiple detection nails (3) are provided, with the multiple detection nails (3) evenly spaced along the length direction of the base plate (1).

4. The tooling for detecting plastic misalignment under a battery cell according to claim 3, characterized in that, The detection pins (3) are arranged in two rows, and the two rows of detection pins (3) are arranged at intervals along the width direction of the base plate (1).

5. The tooling for detecting plastic misalignment under a battery cell according to claim 2, characterized in that, The top cover mounting groove (22) is provided with pole mounting holes (23), and there are two pole mounting holes (23), which are respectively located on both sides of the detection hole (21).

6. The battery cell under-plastic misalignment detection fixture according to claim 5, characterized in that, The top plate (2) is provided with a positive electrode mark (24) and a negative electrode mark (25), which are matched with the electrode mounting hole (23).

7. The battery cell under-plastic misalignment detection fixture according to claim 1, characterized in that, The top plate (2) and the bottom plate (1) are detachably connected.

8. The tooling for detecting plastic misalignment under a battery cell according to claim 1, characterized in that, The detection nail (3) is detachably connected to the base plate (1).