Cylindrical battery helium detection device and system

Abstract

The utility model discloses a helium detection device and system for a cylindrical battery. The helium detection device comprises a feeding manipulator, a mixed detection bin, a redetection bin, a discharging manipulator and an NG rejection line, the feeding manipulator is used for picking up a plurality of battery cells and transferring the battery cells to the mixed detection bin for helium detection; the discharging manipulator is used for picking up the detected battery cells in the mixed detection bin and transferring the battery cells to the redetection bin or the next working procedure according to the detection result of the battery cells; the reinspection bin is used for screening unqualified battery cells; the discharging mechanical arm is used for picking up the battery cells in the rechecking bin and transferring the unqualified battery cells to the NG removing line. Under the condition of the same configuration, the whole size is small, no space is occupied, equipment cost and efficiency control are met, great advantages are achieved in market competition, the upper half detection cavity and the lower half detection cavity of the equipment are modularly designed, the layout of the detection cavities is reasonably arranged, the use efficiency of the vacuum pump is utilized to the maximum extent, and maximization of the efficiency of the equipment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of battery helium detection technology, and in particular to a cylindrical battery helium detection device and system. Background Technology

[0002] Helium testing is an essential step in the lithium battery production process. By measuring the helium content inside the battery, it is possible to determine whether there is a leak, detect potential battery hazards in a timely manner, and prevent safety accidents such as battery explosions. It can effectively test battery safety.

[0003] However, in the current helium testing process, as the market demands higher overall line efficiency, the overall size is large and occupies space under the same configuration, which does not meet the requirements of equipment cost and efficiency control. In order to maximize equipment efficiency and improve production cycle time, a cylindrical battery helium testing device and system is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a cylindrical battery helium detection device and system that achieves a small overall size, does not occupy space, and improves production cycle time.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a cylindrical battery helium detection device, comprising:

[0006] Loading robot, mixed inspection bin, re-inspection bin, unloading robot and NG rejection line;

[0007] The loading robot is used to pick up several battery cells and transfer them to the mixed inspection chamber for helium testing;

[0008] The unloading robot is used to pick up the battery cells that have been tested in the mixed inspection bin and transfer them to the re-inspection bin or to the next process according to the battery cell test results;

[0009] The re-inspection chamber is used to screen out substandard battery cells;

[0010] The unloading robot is used to pick up the battery cells in the re-inspection bin, transfer the unqualified battery cells to the NG rejection line, and transfer the remaining qualified battery cells to the next process.

[0011] Furthermore, it also includes a loading conveyor line, a unloading conveyor line, and a conveyor rail disposed between the two, wherein the loading robot and the unloading robot are slidably disposed on the conveyor rail;

[0012] The number of mixed inspection bins and re-inspection bins is multiple, and the multiple sets of mixed inspection bins and re-inspection bins are distributed on both sides of the conveyor rail;

[0013] A transfer mechanism is provided below the conveyor rail, which is used to carry the battery cells and transfer them between the conveyor rail, the mixed inspection chamber, or the re-inspection chamber.

[0014] Furthermore, the transfer mechanism includes a lower cavity, on which a plurality of detection chambers for placing battery cells are provided;

[0015] A lifting cylinder is disposed at the bottom of the lower cavity to drive the lower cavity to rise and fall;

[0016] A translation slide is provided at the bottom of the lower cavity to drive the lower cavity and its internal battery cells to move.

[0017] Furthermore, both the mixed testing chamber and the retesting chamber include an upper cavity, which corresponds to the lower cavity and is used to merge with the lower cavity to form a sealed testing chamber;

[0018] The upper cavity is equipped with an evacuation valve, a helium injection cylinder, a vacuum gauge, and a helium detection valve.

[0019] The vacuum valve is used to apply negative pressure to the detection chamber;

[0020] The helium injection cylinder is used to inject helium into the battery cell;

[0021] The vacuum gauge is used to measure the air pressure inside the detection chamber;

[0022] The helium detection valve is used to detect whether there is a helium leak after helium filling is completed.

[0023] Furthermore, the mixed inspection chamber and the re-inspection chamber are also provided with a connecting pipe, which is located above the upper cavity. The upper cavity is used to connect the evacuation valve, the helium injection cylinder, the vacuum gauge, and the helium detection valve.

[0024] Furthermore, the upper cavity of the re-inspection chamber is provided with an independent chamber corresponding to each battery cell. The independent chamber is used to open independently to test each battery cell individually.

[0025] Furthermore, each gripping structure of the unloading robot can operate independently to individually place unqualified battery cells into the NG rejection line.

[0026] Furthermore, a barcode scanning mechanism is provided on the feeding conveyor line to identify and record the codes of each battery cell.

[0027] Furthermore, a positioning mechanism is provided between the feeding conveyor line and the unloading conveyor line;

[0028] The positioning mechanism is used to position the battery cells so that the loading robot and the unloading robot can pick them up and unload them.

[0029] A cylindrical battery helium detection system, comprising a loading and unloading mechanism, a detection mechanism, a re-inspection mechanism, and an NG mechanism connected in series.

[0030] The loading and unloading mechanism is used to continuously pick up battery cell groups and transfer them to the testing mechanism, and transfer qualified battery cells to the next process, while transferring unqualified battery cell groups to the re-inspection mechanism;

[0031] The re-inspection mechanism is used to identify the corresponding unqualified battery cells and transfer the unqualified battery cells to the NG mechanism through the loading and unloading mechanism.

[0032] The beneficial effects of this utility model are reflected in:

[0033] This utility model, under the same configuration, has a small overall size, does not occupy space, meets the requirements of equipment cost and efficiency control, and has a significant advantage in market competition. Moreover, the equipment adopts a modular design with upper and lower half detection chambers, uses self-made module transfer, and changes the battery cell loading and unloading to a gear and rack drive, thereby reducing the size of the equipment and rationally arranging the detection chamber layout. It consists of four sets of mixed detection chambers and two sets of re-detection chambers, maximizing the utilization efficiency of the vacuum pump, thereby maximizing the efficiency of the equipment and improving the cycle time. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the system of this utility model;

[0035] Figure 2 This is a schematic diagram of the mixed inspection chamber and re-inspection chamber of this utility model;

[0036] Figure 3 This is a schematic diagram of the conveyor rail structure of this utility model;

[0037] Figure 4 This is a schematic diagram of the transfer mechanism of this utility model.

[0038] In the picture:

[0039] 1. Feeding conveyor line; 2. Barcode scanning mechanism; 3. Positioning mechanism; 4. Feeding robot; 5. Mixed inspection bin; 6. Re-inspection bin; 7. Unloading robot; 8. NG rejection line; 9. Unloading conveyor line; 10. Transfer mechanism; 101. Lower cavity; 102. Lifting cylinder; 103. Translation slide; 11. Conveyor rail; 12. Upper cavity; 13. Vacuum valve; 14. Helium injection cylinder; 15. Vacuum gauge; 16. Helium detection valve. Detailed Implementation

[0040] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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 scope of protection of the present utility model.

[0041] Please see Figure 1-4 This utility model discloses a cylindrical battery helium detection device, comprising:

[0042] 4. Loading robot; 5. Mixed inspection bin; 6. Re-inspection bin; 7. Unloading robot; and 8. NG rejection line.

[0043] The loading robot 4 is used to pick up several battery cells and transfer them to the mixed inspection chamber 5 for helium testing;

[0044] The unloading robot 7 is used to pick up the battery cells that have been tested in the mixed inspection bin 5 and transfer them to the re-inspection bin 6 or to the next process according to the battery cell test results;

[0045] The re-inspection compartment 6 is used to screen out substandard battery cells;

[0046] The unloading robot 7 is used to pick up the battery cells in the re-inspection bin 6, transfer the unqualified battery cells to the NG rejection line 8, and transfer the remaining qualified battery cells to the next process.

[0047] It should be noted that the system also includes a feeding conveyor line 1, a discharging conveyor line 9, and a conveyor rail 11 set between the two. It should be noted that the feeding conveyor line 1 and the discharging conveyor line 9 are driven by a rack and pinion, and the feeding robot 4 and the discharging robot 7 are slidably set on the conveyor rail 11.

[0048] There are multiple sets of mixed inspection bins 5 and re-inspection bins 6, and these multiple sets of mixed inspection bins 5 and re-inspection bins 6 are distributed on both sides of the conveyor rail 11. In a preferred embodiment, such as... Figure 1 As shown, there are four sets of mixed inspection chambers 5 and two sets of re-inspection chambers 6, both of which are symmetrically distributed on both sides of the conveyor rail 11.

[0049] A transfer mechanism 10 is provided below the conveyor rail 11. The transfer mechanism 10 is used to carry the battery cells and transfer them between the conveyor rail 11, the mixed inspection chamber 5, or the re-inspection chamber 6. In the above embodiment, the transfer mechanism 10 is used to connect the relatively distributed mixed inspection chamber 5 and re-inspection chamber 6, and to transfer the battery cells on the conveyor rail 11 to the corresponding mixed inspection chamber 5 and re-inspection chamber 6.

[0050] In this application, it should be further explained that the transfer mechanism 10 includes a lower cavity 101, and the lower cavity 101 is provided with a plurality of detection chambers for placing the battery cells;

[0051] Lifting cylinder 102 is located at the bottom of the lower cavity 101 and is used to drive the lower cavity 101 to rise and fall.

[0052] Translation slide 103 is located at the bottom of the lower cavity 101 to drive the lower cavity 101 and its internal battery cells to move.

[0053] Preferably, the transfer mechanism 10 is provided with two sets of lower cavities 101. Under the action of the translation slide 103, the two sets of lower cavities 101 alternately connect with the conveyor rail 11 and alternately carry the battery cells to transfer them into the mixed inspection chamber 5 and the re-inspection chamber 6, thereby improving the inspection efficiency.

[0054] It needs to be explained in detail, such as Figure 2 As shown, both the mixed testing chamber 5 and the retesting chamber 6 include an upper cavity 12, which corresponds to the lower cavity 101 and is used to form a sealed testing chamber by closing with the lower cavity 101.

[0055] The upper cavity 12 is equipped with an evacuation valve 13, a helium injection cylinder 14, a vacuum gauge 15, and a helium detection valve 16.

[0056] The vacuum valve 13 is used to apply negative pressure to the detection chamber;

[0057] Helium injection cylinder 14 is used to inject helium into the battery cell;

[0058] Vacuum gauge 15 is used to measure the air pressure inside the detection chamber;

[0059] The helium detection valve 16 is used to detect whether there is a helium leak after helium filling is completed.

[0060] In this application, a connecting pipe 17 is also provided on the mixed inspection chamber 5 and the re-inspection chamber 6. The connecting pipe 17 is located above the upper cavity 12, which is used to connect the evacuation valve 13, the helium injection cylinder 14, the vacuum gauge 15 and the helium detection valve 16.

[0061] In this application, the upper cavity 12 of the re-inspection chamber 6 is provided with an independent chamber corresponding to each battery cell. The independent chamber is used to open independently to test each battery cell separately.

[0062] In this application, each gripping structure of the unloading robot 7 can operate independently to individually place unqualified battery cells into the NG rejection line 8. Specifically, the unloading robot 7 has 16 independently controlled grippers. During unloading, the unqualified battery cells are released at the junction of the NG rejection line 8, and the grippers of the NG rejection line 8 transfer the unqualified battery cells to the NG rejection line 8. The remaining qualified battery cells are transferred by the unloading robot 7 to the unloading conveyor line 9.

[0063] When using this application based on the above structural configuration, the following steps are included:

[0064] S1. The feeding conveyor line 1 conveys the battery cells. The tray carrying the battery cells flows to the feeding gripping position. The feeding robot 4 grips several sets of battery cells, preferably 16 PCS battery cells. Then the feeding robot 4 transports and places them into the lower transfer mechanism 10 for the next process.

[0065] S2. The detection chamber set on the lower cavity 101 of the transfer mechanism 10 is used to carry the battery cell. The lower cavity 101 is transferred to the helium detection chamber position under the drive of the translation slide 103. Then, the lifting cylinder 102 drives the lower cavity 101 to rise and merge with the upper cavity 12, so that the upper cavity 12 and the lower cavity 101 merge into a closed detection chamber. Then, the helium injection cylinder 14 descends to seal the battery cell. The vacuum valve 13 evacuates the inside of the detection chamber and maintains the vacuum environment for 2 seconds. The internal pressure is monitored in real time by the vacuum gauge 15. If there is no change in the pressure, it is judged as qualified; otherwise, it is judged as unqualified. When qualified, the helium injection cylinder 14 injects helium into the battery cell. After the helium injection is completed, the helium detection valve 16 measures whether there is helium leakage in the detection chamber.

[0066] S3. After the test is completed, the upper cavity 12 is separated from the lower cavity 101. The lower cavity 101 is reconnected to the conveyor rail 11 under the drive of the translation slide 103, and the battery cell is picked up by the unloading robot 7 and transferred to the unloading conveyor line 9.

[0067] S4. The unqualified battery cells are picked up by the unloading robot 7 and transferred to the re-inspection chamber 6. The upper cavity 12 of the re-inspection chamber 6 is equipped with an independent chamber corresponding to each battery cell. The independent chamber is used to open independently to test each battery cell separately.

[0068] After the inspection in the S5 and re-inspection bins is completed, the unloading robot 7 picks up 16 PCS of battery cells. The battery cells that fail the air pressure test and have helium leaks in step 2 are sorted and placed into the NG rejection line 8. Then, the qualified battery cells are transferred to the unloading conveyor line 9.

[0069] It should be noted that the re-inspection chamber 6 and the mixed inspection chamber 5 are similar in that they have the same detection logic parameters. The difference is that the selected 16 PCS cells are divided into 2 groups of 8 cells for inspection, then divided into 4 groups of 4 cells for inspection, and then the 4 groups of cells with NG are inspected one by one. This saves inspection time and can distinguish the NG cells individually to achieve the inspection purpose.

[0070] In this application, a barcode scanning mechanism 2 is installed on the feeding conveyor line 1. The barcode scanning mechanism 2 is used to identify and record the codes of each battery cell, so as to facilitate the traceability of products in the same batch and to focus on testing and investigation.

[0071] In this application, a positioning mechanism 3 is provided between the feeding conveyor line 1 and the unloading conveyor line 9;

[0072] The positioning mechanism 3 is used to position the battery cells so that the loading robot 4 and unloading robot 7 can pick them up and unload them. The positioning mechanism 3 is designed to ensure that the equipment can pick up the battery cells accurately and avoid deviations.

[0073] A cylindrical battery helium detection system, comprising a loading and unloading mechanism, a detection mechanism, a re-inspection mechanism, and an NG mechanism connected in series.

[0074] The loading and unloading mechanism is used to continuously pick up battery cell groups and transfer them to the testing mechanism, and transfer qualified battery cells to the next process, while unqualified battery cell groups are transferred to the re-inspection mechanism;

[0075] The re-inspection unit is used to identify the corresponding defective cells and transfer the defective cells to the NG unit through the loading and unloading mechanism.

[0076] With the above system setup, this application has a smaller overall size and does not occupy space under the same configuration, which meets the requirements of equipment cost and efficiency control and has a significant advantage in market competition. Moreover, the equipment adopts a modular design for the upper and lower half of the detection chamber, uses self-made module transfer, and changes the battery cell loading and unloading to a gear and rack drive, thereby reducing the size of the equipment and rationally arranging the detection chamber layout. It consists of four sets of mixed detection chambers and two sets of re-detection chambers, maximizing the utilization efficiency of the vacuum pump, thereby maximizing the efficiency of the equipment and improving the cycle time.

[0077] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0078] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0079] Additionally, "multiple" refers to two or more.

[0080] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylindrical battery helium detection device, characterized in that, include: Loading robot (4), mixed inspection bin (5), re-inspection bin (6), unloading robot (7) and NG rejection line (8); The loading robot (4) is used to pick up several battery cells and transfer them to the mixed inspection chamber (5) for helium testing; The unloading robot (7) is used to pick up the battery cells that have been tested in the mixed inspection bin (5) and transfer them to the re-inspection bin (6) or to the next process according to the battery cell test results; The re-inspection chamber (6) is used to screen out unqualified battery cells; The unloading robot (7) is used to pick up the battery cells in the re-inspection bin (6), transfer the unqualified battery cells to the NG rejection line (8), and transfer the remaining qualified battery cells to the next process; It also includes a loading conveyor line (1), a unloading conveyor line (9) and a conveyor rail (11) disposed between the two, wherein the loading robot (4) and the unloading robot (7) are slidably disposed on the conveyor rail (11); The number of mixed inspection chambers (5) and re-inspection chambers (6) is multiple, and the multiple sets of mixed inspection chambers (5) and re-inspection chambers (6) are distributed on both sides of the conveyor rail (11); A transfer mechanism (10) is provided below the conveying rail (11). The transfer mechanism (10) is used to carry the battery cells and transfer them between the conveying rail (11), the mixed inspection chamber (5), or the re-inspection chamber (6).

2. The cylindrical battery helium detection device according to claim 1, characterized in that: The transfer mechanism (10) includes a lower cavity (101), on which a plurality of detection chambers for placing battery cells are provided; A lifting cylinder (102) is provided at the bottom of the lower cavity (101) to drive the lower cavity (101) to rise and fall; A translation slide (103) is provided at the bottom of the lower cavity (101) to drive the lower cavity (101) and its internal battery cells to move.

3. The cylindrical battery helium detection device according to claim 2, characterized in that: Both the mixed testing chamber (5) and the retesting chamber (6) include an upper cavity (12), which corresponds to the lower cavity (101) and is used to form a sealed testing chamber by closing the cavity with the lower cavity (101); The upper cavity (12) is equipped with an evacuation valve (13), a helium injection cylinder (14), a vacuum gauge (15), and a helium detection valve (16). The vacuum valve (13) is used to apply negative pressure to the detection chamber; The helium injection cylinder (14) is used to inject helium into the battery cell; The vacuum gauge (15) is used to measure the air pressure inside the detection chamber; The helium detection valve (16) is used to detect whether helium is leaking after helium injection is completed.

4. The cylindrical battery helium detection device according to claim 3, characterized in that: The mixed inspection chamber (5) and the re-inspection chamber (6) are also provided with a connecting pipe (17), which is located above the upper cavity (12). The upper cavity (12) is used to connect the vacuum valve (13), the helium injection cylinder (14), the vacuum gauge (15), and the helium detection valve (16).

5. The cylindrical battery helium detection device according to claim 4, characterized in that: The upper cavity (12) of the re-inspection chamber (6) is provided with an independent chamber corresponding to each battery cell. The independent chamber is used to open independently to test each battery cell individually.

6. The cylindrical battery helium detection device according to claim 5, characterized in that: Each gripping structure of the unloading robot (7) can operate independently to individually place unqualified cells into the NG rejection line (8).

7. The cylindrical battery helium detection device according to claim 1, characterized in that: The feeding conveyor line (1) is equipped with a barcode scanning mechanism (2), which is used to identify and record the code of each battery cell.

8. The cylindrical battery helium detection device according to claim 1, characterized in that: A positioning mechanism (3) is provided between the feeding conveyor line (1) and the unloading conveyor line (9). The positioning mechanism (3) is used to position the battery cell so that the loading robot (4) and the unloading robot (7) can pick it up and unload it.

9. A cylindrical battery helium detection system, characterized in that: The system includes a loading and unloading mechanism, a testing mechanism, a re-inspection mechanism, and an NG mechanism connected in series. The loading and unloading mechanism is used to continuously pick up battery cell groups and transfer them to the testing mechanism, and transfer qualified battery cells to the next process, while transferring unqualified battery cell groups to the re-inspection mechanism; The re-inspection mechanism is used to identify the corresponding unqualified battery cells and transfer the unqualified battery cells to the NG mechanism through the loading and unloading mechanism.

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