Lithium battery detection device based on EOL system

Abstract

The utility model discloses a lithium battery detection device based on an EOL system, and relates to the technical field of lithium battery detection equipment, through a detection plate, under the condition that an air cylinder drives a telescopic rod to enable the detection plate to move downwards, a metal probe is in contact with a module to be detected, and two wiring harnesses are respectively connected with a positive electrode and a negative electrode of the lithium battery module to be detected; a safety detector, a temperature inspection instrument, an alternating current internal resistance instrument, a voltage inspection instrument and a universal meter are sequentially installed in the multifunctional control cabinet from top to bottom, and detection of various information of a lithium battery is integrated. The lithium battery detection process is reduced, the process route is simplified, the production efficiency of the lithium battery and the delivery safety are improved, and the accuracy of the measurement precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery detection equipment, in particular to a lithium battery detection device based on an EOL system. Background Technique

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. The safety detection of lithium batteries is the key to ensuring the sustainable development of the new energy vehicle industry and an important means to improve the core competitiveness of the new energy vehicle industry.

[0003] In the existing lithium battery detection device, each module is decentralized, and usually only one parameter can be detected in one process. These detection steps are cumbersome, and the existing lithium battery detection efficiency needs to be improved. Content of the Utility Model

[0004] To solve the technical problems in the background technique, the utility model proposes a lithium battery detection device based on an EOL system.

[0005] The lithium battery detection device based on an EOL system proposed by the utility model includes a lithium battery module to be detected, and also includes a positioning mechanism and a detection mechanism. The positioning mechanism is used to position the lithium battery module to be detected, and the detection mechanism is used to detect the lithium battery module to be detected.

[0006] Preferably, the positioning mechanism includes a base, a tray is arranged on the base, the tray slides on the base, a plurality of fixed corner guards are installed on the tray, a support frame is installed on the base, a cylinder is installed on the support frame, one end of the output shaft of the cylinder penetrates through the support frame, a detection plate is installed at one end of the output shaft of the cylinder, a plurality of metal probes are installed on the detection plate, and two wiring harnesses are connected to the detection plate. The two wiring harnesses are respectively connected to the positive electrode and the negative electrode of the lithium battery module to be detected.

[0007] Preferably, two slide rails are installed on the base, the two slide rails are arranged in parallel, and a slider is slidably connected to the slide rails.

[0008] Preferably, a handle is installed on the tray.

[0009] Preferably, the number of the fixed corner guards is set to four, and the fixed corner guards are used to ensure the consistency of the detection position.

[0010] Preferably, the shape of the support frame is set to U-shaped.

[0011] Preferably, a pneumatic wrench is installed on the support frame, and the pneumatic wrench is used to start the cylinder.

[0012] Preferably, two telescopic rods are installed on the support frame, and one end of each telescopic rod is fixedly connected to the detection plate.

[0013] Preferably, the detection mechanism includes a multi-functional control cabinet, on which a host computer is installed. A barcode scanner is connected to the host computer. A test main controller is installed in the multi-functional control cabinet. An insulation resistance tester, a temperature patrol instrument, an AC internal resistance tester, a voltage patrol instrument and a multimeter are installed in the multi-functional control cabinet from top to bottom in sequence.

[0014] In the present utility model, the proposed lithium battery detection device based on the EOL system has the following beneficial technical effects:

[0015] 1. Through the detection plate, when the cylinder drives the telescopic rod to move the detection plate downward, the metal probe contacts the module to be detected, and the two wiring harnesses are respectively connected to the positive and negative electrodes of the lithium battery module to be detected, so as to detect the lithium battery module to be detected. An insulation resistance tester, a temperature patrol instrument, an AC internal resistance tester, a voltage patrol instrument and a multimeter are installed in the multi-functional control cabinet from top to bottom in sequence, integrating the detection of various information of the lithium battery, reducing the lithium battery detection process, simplifying the process route, improving the production efficiency and factory safety of the lithium battery, and ensuring the accuracy of the measurement accuracy.

[0016] 2. In the positioning mechanism, the slider is slidably connected to the slide rail, which improves the action accuracy. The fixed corner guard is used to ensure the consistency of the detection position. One end of the telescopic rod is fixedly connected to the detection plate, increasing the stability of the movement of the detection plate.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a top view of the structure of the present utility model;

[0019] Figure 2 is a perspective view of the structure of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the detection mechanism of the present utility model;

[0021] Figure 4 is a working flow chart of the present utility model.

[0022] In the figure, 1 is a wiring harness; 2 is a base; 3 is a slide rail; 4 is a tray; 5 is a handle; 6 is a lithium battery module to be detected; 7 is a fixed corner guard; 8 is a slider; 9 is a support frame; 10 is a metal probe; 11 is a pneumatic wrench; 12 is a cylinder; 13 is a detection board; 14 is a telescopic rod; 15 is a multi-functional control cabinet; 16 is a host computer; 17 is a barcode scanner; 18 is a multimeter; 19 is a voltage inspection instrument; 20 is a safety inspection instrument; 21 is a temperature inspection instrument; 22 is a test main controller; 23 is an AC internal resistance meter. Specific implementation manner

[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0024] As Figure 1 - Figure 2 shown, a lithium battery detection device based on an EOL system includes a lithium battery module 6 to be detected, and further includes a positioning mechanism and a detection mechanism. The positioning mechanism is used to position the lithium battery module 6 to be detected, and the detection mechanism is used to detect the lithium battery module 6 to be detected.

[0025] The further improvement of the technical solution lies in that the positioning mechanism includes a base 2. A tray 4 is provided on the base 2. The tray 4 slides on the base 2. A plurality of fixed corner guards 7 are installed on the tray 4. A support frame 9 is installed on the base 2. A cylinder 12 is installed on the support frame 9. One end of the output shaft of the cylinder 12 penetrates through the support frame 9. One end of the output shaft of the cylinder 12 is installed with a detection board 13. A plurality of metal probes 10 are installed on the detection board 13. Two wiring harnesses 1 are connected to the detection board 13, and the two wiring harnesses 1 are respectively connected to the positive and negative electrodes of the lithium battery module 6 to be detected.

[0026] Two slide rails 3 are installed on the base 2. The two slide rails 3 are arranged in parallel. A slider 8 is slidably connected to the slide rails 3. The slider 8 slides on the slide rails 3, and the slider 8 improves the action accuracy.

[0027] A handle 5 is installed on the tray 4. The quality inspection personnel push the lithium battery module 6 placed above the tray 4 to the detection position through the handle 5 at the front end of the tray 4.

[0028] The number of the fixed corner guards 7 is set to four, and the fixed corner guards 7 are used to ensure the consistency of the detection positions.

[0029] The shape of the support frame 9 is set to U-shaped, and the support frame 9 is made of insulating material.

[0030] A pneumatic wrench 11 is installed on the support frame 9, and the pneumatic wrench 11 is used to start the cylinder 12.

[0031] There are two telescopic rods 14 installed on the support frame 9. One end of the telescopic rod 14 is fixedly connected to the detection plate. The telescopic rod 14 is a telescopic member in the prior art, which increases the stability of the movement of the detection plate 13.

[0032] Push the pneumatic wrench 11, and the cylinder 12 drives the telescopic rod 14 and the detection plate 13 to move downward. The telescopic rod 14 increases the stability of the movement of the detection plate.

[0033] The metal probe 10 contacts the module to be detected. Manually insert and connect the battery pack wiring harness. The two wiring harnesses 1 are respectively connected to the positive and negative poles of the lithium battery module 6 to be detected. The barcode scanner 17 scans the barcodes on the whole body of the battery pack, and the system automatically enters the battery pack production parameter file according to the barcode rules.

[0034] Please refer to Figure 3 Furthermore, the improvement of the technical solution lies in that the detection mechanism includes a multi-functional control cabinet 15. An upper computer 16 is installed on the multi-functional control cabinet 15. A barcode scanner 17 is connected to the upper computer 16. A test main controller 22 is installed in the multi-functional control cabinet 15. An insulation resistance tester 20, a temperature inspection instrument 21, an AC internal resistance tester 23, a voltage inspection instrument 19 and a multimeter 18 are installed in the multi-functional control cabinet 15 from top to bottom in sequence.

[0035] The upper computer 16 edits and configures the test process and can save it locally as a file. After connecting to the network, the test data is automatically uploaded to the MES, and the MES can trace the test data;

[0036] The upper computer 16 is connected to the barcode scanner 17 through a USB. The USB is a universal serial bus.

[0037] The barcode scanner 17 scans and binds the lithium battery module to be tested and enters the basic information of the lithium battery module to be tested; the upper computer 16 and the test main controller 22 inside the control cabinet are connected through an Ethernet cable. The main controller issues control commands for charge and discharge parameters such as time, current, voltage, and temperature to the lithium battery module 6 to be detected. The insulation resistance tester 20 is placed sequentially downward in the control cabinet. The insulation resistance tester is used to test the overvoltage tolerance of the lithium battery module to be inspected within a certain time. Below the insulation resistance tester is the temperature inspection instrument 21. The temperature inspection instrument 21 is used to detect the temperature change of the lithium battery module 6 to be detected during the test. Below the temperature inspection instrument 21 are the AC internal resistance tester 23, the voltage inspection instrument 19 and the multimeter 18 respectively, which are used to detect the resistance, voltage and current of the lithium battery module 6 to be detected. The detection instruments are all connected to the main controller through RS. Click the test button, and the system automatically detects. After the test is completed, if the test is passed, the system prompts to disconnect the test line. If it fails, the system alarms.

[0038] Please refer to Figure 4 The implementation steps include:

[0039] Step S1: Open the EOL test software on the desktop, click "New", select the project test file to be opened, and click "Confirm".

[0040] Step S2: The system initializes the hardware self-check and mechanism reset.

[0041] Step S3: The host computer edits and configures the 16 test processes and sets the normal working range of the parameters.

[0042] Step S4: Gently place the module into the test fixture, with the module socket facing the employee side. Distinguish between positive and negative modules and select the corresponding positive and negative test wire harnesses for plugging.

[0043] Step S5: Push the fixture with the module placed to the bottom. When the proximity switch light comes on, push the pneumatic wrench 11, and the cylinder 12 will bring the test probe into contact with the module.

[0044] Step S6: Use the barcode scanner 17 to scan the two-dimensional barcode on the end plate of the lithium battery module 6 to be detected. The device automatically conducts the test. After the test is qualified, "PASS" will be displayed. If there are unqualified items, the device will alarm and display the unqualified items in red.

[0045] Step S7: Generate a report after the test and upload it to the MES system (when the computer is connected to the network, the test information will be automatically uploaded to the MES system), and the MES can trace the test data.

[0046] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0047] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] As mentioned above, the above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A lithium battery detection device based on an EOL system, including a lithium battery module to be detected (6), characterized in that, It also includes a positioning mechanism and a detection mechanism. The positioning mechanism is used to position the lithium battery module (6) to be detected, and the detection mechanism is used to detect the lithium battery module (6) to be detected.

2. The lithium battery detection device based on the EOL system according to claim 1, characterized in that, The positioning mechanism includes a base (2). A tray (4) is provided on the base (2). The tray (4) slides on the base (2). A plurality of fixed corner guards (7) are installed on the tray (4). A support frame (9) is installed on the base (2). A cylinder (12) is installed on the support frame (9). One end of the output shaft of the cylinder (12) penetrates through the support frame (9). A detection plate (13) is installed at one end of the output shaft of the cylinder (12). A plurality of metal probes (10) are installed on the detection plate (13). Two wiring harnesses (1) are connected to the detection plate (13).

3. The lithium battery detection device based on the EOL system according to claim 2, wherein, Two slide rails (3) are installed on the base (2). The two slide rails (3) are arranged in parallel. A slider (8) is connected to the slide rails (3). The slider (8) slides on the slide rails (3). One side of the slider (8) is installed on the tray (4).

4. The lithium battery detection device based on the EOL system according to claim 2, characterized in that, A handle (5) is installed on the tray (4).

5. The lithium battery detection device based on the EOL system according to claim 2, characterized in that, The number of the fixed corner guards (7) is set to four.

6. The lithium battery detection device based on the EOL system according to claim 2, characterized in that, The shape of the support frame (9) is set to U-shaped.

7. The lithium battery detection device based on the EOL system according to claim 2, characterized in that, A pneumatic wrench (11) is installed on the support frame (9). The pneumatic wrench (11) is used to start the cylinder (12).

8. The lithium battery detection device based on the EOL system according to claim 2, characterized in that, Two telescopic rods (14) are installed on the support frame (9). One end of the telescopic rods (14) is connected to the detection plate (13).

9. The lithium battery detection device based on the EOL system according to claim 1, wherein, The detection mechanism includes a multi-functional control cabinet (15). A host computer (16) is installed on the multi-functional control cabinet (15). A barcode scanner (17) is connected to the host computer (16). A test main controller (22) is installed in the multi-functional control cabinet (15). An insulation resistance tester (20), a temperature data logger (21), an AC internal resistance tester (23), a voltage data logger (19) and a multimeter (18) are respectively installed in the multi-functional control cabinet (15).

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