Battery module OCV testing machine

Abstract

The utility model relates to a battery module OCV testing machine which comprises a testing machine table. A test rack; a battery tray on which a battery to be tested is arranged; a tray positioning unit for positioning the battery tray; the probe unit is used for carrying out an OCV test on the to-be-tested battery on the battery tray; the probe unit comprises an upper mounting plate, a Z-axis electric cylinder, a probe mounting plate and a plurality of modular probes, the upper mounting plate is mounted on the top plate of the test rack, the Z-axis electric cylinder is mounted on the upper mounting plate, the output end of the Z-axis electric cylinder is connected with the probe mounting plate, and the plurality of modular probes are mounted on the probe mounting plate. The battery module OCV test machine is applied to a battery module line, the OCV test mechanism uses a test probe assembly modularization design thought, overall rapid replacement can be achieved, rapid replacement of probes can be achieved, the battery module is positioned through the tray positioning unit, and the test process can be more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery technical field especially is a kind of battery module OCV testing machine. BACKGROUND

[0002] New energy vehicle is the direction of future vehicle development, and lithium battery as the power source of new energy vehicle, its quality strict control is the important guarantee that new energy vehicle can gradually replace fuel vehicle.Lithium battery in production process, its each technical index control is realized by various precision detection equipment.OCV testing equipment is one of main detection equipment, to collect and feedback comprehensive data of finished product battery.

[0003] OCV test is a kind of machine vision software tool for checking the printing or marking quality of optical character recognition string and confirming its easy identification.In addition to checking whether the presented string content is correct, the technology can also check the quality, contrast and clarity of the string, and mark or reject samples of poor quality.

[0004] Traditional lithium battery OCV is mostly still in the past artificial testing mode, and this mode is low in efficiency and poor in accuracy, and with the rise of new energy in recent years, the demand for lithium battery gradually increases, and new energy enterprises urgently need a lithium battery OCV testing device with simple structure and high testing accuracy. UTILITY MODEL CONTENT

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the whole quick change cannot be realized by artificial testing one by one in the prior art, and the probe is easy to run out of position in the testing process, causing the testing result to be inaccurate.

[0006] To solve the above technical problems, the utility model provides a battery module OCV testing machine, which comprises a testing machine table, a testing machine frame arranged on the testing machine table, a battery tray provided with a battery to be tested, a tray positioning unit arranged on the testing machine frame and used for positioning the battery tray, a probe unit arranged on the top plate of the testing machine frame and located directly above the tray positioning unit, and the probe unit is used for OCV testing of the battery to be tested on the battery tray.

[0007] In one embodiment of the utility model, the modular probe includes several probe assemblies and a positioning plate, the positioning plate is connected with the probe mounting plate, and the several probe assemblies are arranged in a row on the positioning plate.

[0008] In one embodiment of the utility model, the positioning plate is a rectangular flat plate, and the length direction two ends of the positioning plate are respectively provided with a guide block and a fixed block, the guide block is arranged as a wedge-shaped block, the fixed block is provided with a fastener, the opposite sides of the probe mounting plate and the length direction two ends of the positioning plate are respectively provided with a connecting plate one and a connecting plate two, the connecting plate one is provided with a positioning hole one, the guide block is arranged in the positioning hole one, and the fixed block is fixedly connected with the connecting plate two through the fastener.

[0009] In one embodiment of the utility model, the probe assembly includes a lower end fixed block, an intermediate limiting block and at least one probe, the lower end fixed block is fixedly connected with the positioning plate, the intermediate limiting block is locked on the lower end fixed block through a screw, the probe is arranged on the intermediate limiting block and the lower end fixed block, and the test end of the probe penetrates the lower end of the lower end fixed block.

[0010] In one embodiment of the utility model, the intermediate limiting block is connected with a top limiting block, the top limiting block is provided with a limiting groove, and the upper end of the probe is arranged in the limiting groove.

[0011] In one embodiment of the utility model, the upper mounting plate is provided with several guide sliding sleeves one, the probe mounting plate is connected with several guide columns one, the several guide sliding sleeves one and the several guide columns one are arranged in one-to-one correspondence, the guide column one penetrates the guide sliding sleeve one, and the guide column one can slide in the guide sliding sleeve one.

[0012] In one embodiment of the utility model, the tray positioning unit includes at least one jacking cylinder and a jacking plate, the jacking cylinder is fixedly installed on the test machine table, and the jacking plate is connected with the output end of the jacking cylinder.

[0013] In one embodiment of the utility model, the test machine table is provided with several guide sliding sleeves two, the jacking plate is connected with several guide columns two, the several guide sliding sleeves two and the several guide columns two are arranged in one-to-one correspondence, the guide column two penetrates the guide sliding sleeve two, and the guide column two can slide in the guide sliding sleeve two.

[0014] In one embodiment of the utility model, the jacking plate is provided with several positioning columns, the opposite end faces of the battery tray and the jacking plate are provided with several positioning holes two, the several positioning columns and the several positioning holes two are arranged in one-to-one correspondence, the positioning column is arranged in the positioning hole two to realize the positioning between the battery tray and the jacking plate.

[0015] In an embodiment of the utility model, the upper end face of battery tray is equipped with battery support block and battery positioning block, the battery support block is used for supporting battery, the battery positioning block is used for positioning the corner of battery.

[0016] The above technical scheme of the utility model has the following beneficial effects compared with the prior art:

[0017] The battery module OCV testing machine is applied to a battery module line, the OCV testing machine uses a test probe assembly modular design idea, can realize overall quick change, and the test probe is designed with a limiting groove, so that the test process is more reliable, the previous mechanism cannot realize the requirement of overall quick change, and the probe is prone to position deviation in the test process, resulting in inaccurate test results. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to the specific embodiment of the utility model and in combination with the drawings, wherein

[0019] Figure 1 The structure diagram of the battery module OCV testing machine in the preferred embodiment of the utility model is shown Figure 1 ;

[0020] Figure 2 The structure diagram of the battery module OCV testing machine in the preferred embodiment of the utility model is shown Figure 2 ;

[0021] Figure 3 The structure diagram of the probe unit in the preferred embodiment of the utility model is shown

[0022] Figure 4 The partial structure diagram of the probe unit in the preferred embodiment of the utility model is shown

[0023] Figure 5 The structure diagram of the modular probe in the preferred embodiment of the utility model is shown

[0024] Figure 6 The structure diagram of the probe assembly in the preferred embodiment of the utility model is shown

[0025] Figure 7 The sectional view of the probe assembly in the preferred embodiment of the utility model is shown

[0026] Figure 8 The structure diagram of the battery tray and the tray positioning unit in the preferred embodiment of the utility model is shown Figure 1 ;

[0027] Figure 9The utility model discloses a battery tray and tray positioning unit's structure schematic diagram of preferred embodiment in the utility model discloses a battery tray and tray positioning unit's partial structure schematic diagram. Figure 2 ;

[0028] Figure 10 The utility model discloses a battery tray and tray positioning unit's structure schematic diagram of preferred embodiment in the utility model discloses a battery tray and tray positioning unit's partial structure schematic diagram.

[0029] Description of drawings: test platform 1, guide sliding sleeve two 11, test frame 2, battery tray 3, positioning hole two 31, battery support block 32, battery positioning block 33, tray positioning unit 4, jacking air cylinder 41, jacking plate 42, guide column two 421, positioning column 422, probe unit 5, upper mounting plate 51, guide sliding sleeve one 511, Z axle electric cylinder 52, probe mounting plate 53, connecting plate one 531, connecting plate two 532, positioning hole one 533, guide column one 534, modular probe 54, probe assembly 541, lower end fixed block 5411, intermediate limit block 5412, probe 5413, top limit block 5414, limit recess 5415, positioning plate 542, guide block 543, fixed block 544, fastener 545. DETAILED DESCRIPTION

[0030] The utility model will be further explained below in combination with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0031] Reference Figure 1 、 2 The utility model discloses a battery module OCV testing machine, include: test platform 1, test frame 2, battery tray 3, tray positioning unit 4 and probe unit 5 several main parts, test frame 2, it sets up on test platform 1, battery tray 3, it is equipped with the battery of waiting for testing on it, tray positioning unit 4, it sets up on test frame 2, and tray positioning unit 4 is used for positioning battery tray 3, probe unit 5, it sets up on the top plate of test frame 2, and probe unit 5 is located the right above tray positioning unit 4, the probe unit 5 is used for the OCV test of the battery of waiting for testing on battery tray 3. Through the Z axle electric cylinder lifting movement of probe unit 5, drive probe contact battery module pole on battery tray 3, thereby realizes OCV test, in this process, tray positioning unit 4 carries out the stable positioning of battery tray 3.

[0032] Reference Figure 3 、 4As shown, the probe unit 5 comprises an upper mounting plate 51, a Z-axis electric cylinder 52, a probe mounting plate 53 and a plurality of modular probes 54, the upper mounting plate 51 is mounted on the top plate of the test rack 2, the Z-axis electric cylinder 52 is mounted on the upper mounting plate 51, and the output end of the Z-axis electric cylinder 52 is connected with the probe mounting plate 53, and the probe mounting plate 53 is provided with a plurality of modular probes 54. A plurality of guide sleeves one 511 are arranged on the upper mounting plate 51, a plurality of guide columns one 534 are connected with the probe mounting plate 53, the plurality of guide sleeves one 511 and the plurality of guide columns one 534 are arranged in one-to-one correspondence, the guide column one 534 penetrates the guide sleeve one 511, and the guide column one 534 can slide in the guide sleeve one 511.

[0033] Referring to Figure 5 , 6 As shown, the modular probe 54 comprises a plurality of probe assemblies 541 and a positioning plate 542, the positioning plate 542 is connected with the probe mounting plate 53, and the plurality of probe assemblies 541 are arranged in a row on the positioning plate 542. The positioning plate 542 is a rectangular flat plate, and the length direction two ends of the positioning plate 542 are respectively provided with a guide block 543 and a fixed block 544, the guide block 543 is arranged as a wedge-shaped block, the fixed block 544 is provided with a fastener 545, and the opposite sides of the length direction of the probe mounting plate 53 are respectively provided with a connecting plate one 531 and a connecting plate two 532, the connecting plate one 531 is provided with a positioning hole one 533, the guide block 543 is arranged in the positioning hole one 533, and the fixed block 544 is fixedly connected with the connecting plate two 532 through the fastener 545.

[0034] Referring to Figure 7 As shown, the probe assembly 541 comprises a lower end fixed block 5411, an intermediate limiting block 5412 and at least one probe 5413, the lower end fixed block 5411 is fixedly connected with the positioning plate 542, the intermediate limiting block 5412 is locked on the lower end fixed block 5411 by a screw, and the probe 5413 is arranged on the intermediate limiting block 5412 and the lower end fixed block 5411, and the test end of the probe 5413 penetrates the lower end of the lower end fixed block 5411. The intermediate limiting block 5412 is connected with a top limiting block 5414, the top limiting block 5414 is provided with a limiting groove 5415, and the upper end of the probe 5413 is arranged in the limiting groove 5415.

[0035] Referring to Figure 8 , 9As shown, the tray positioning unit 4 comprises at least one jacking cylinder 41 fixedly installed on the testing machine 1 and a jacking plate 42 connected with the output end of the jacking cylinder 41. The testing machine 1 is provided with a plurality of guide sleeves 11, and the jacking plate 42 is provided with a plurality of guide columns 421, which are arranged in one-to-one correspondence with the guide sleeves 11 and can slide in the guide sleeves 11.

[0036] Referring to Figure 10 As shown, the jacking plate 42 is provided with a plurality of positioning columns 422, and the end surface of the battery tray 3 opposite to the jacking plate 42 is provided with a plurality of positioning holes 31, which are arranged in one-to-one correspondence with the positioning columns 422. The positioning columns 422 are arranged in the positioning holes 31 to position the battery tray 3 and the jacking plate 42. During the extension or retraction of the piston rod of the jacking cylinder 41, the jacking plate 42 is driven to ascend or descend. By inserting the positioning columns 422 into the positioning holes 31, the position of the battery tray 3 is ensured to be accurate, and the position of the battery tray 3 is ensured to be stable during the testing.

[0037] In addition, the upper end surface of the battery tray 3 is provided with a battery supporting block 32 and a battery positioning block 33. The battery supporting block 32 is used for supporting the battery, and the battery positioning block 33 is used for positioning the corner of the battery. The battery positioning block 33 is arranged in four, which are respectively arranged at the four corners of the rectangle. The cuboid battery module is placed on the battery supporting block 32, and the four corners of the battery module are arranged in the battery positioning block 33.

[0038] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A battery module OCV tester, characterized by: Including, Test machine; Test rack, which is provided on the test machine; Battery tray, which is provided on the test machine; Tray positioning unit, which is provided on the test rack, and the tray positioning unit is used to position the battery tray; Probe unit, which is provided on the top plate of the test rack and is located directly above the tray positioning unit, and the probe unit is used to test the battery on the battery tray; The probe unit comprises an upper mounting plate, a Z-axis electric cylinder, a probe mounting plate and a plurality of modular probes, the upper mounting plate is mounted on the top plate of the test rack, the Z-axis electric cylinder is mounted on the upper mounting plate, and the output end of the Z-axis electric cylinder and the probe mounting plate are connected, and a plurality of modular probes are mounted on the probe mounting plate.

2. The battery module OCV tester of claim 1, wherein: The modular probe comprises a plurality of probe assemblies and a positioning plate, the positioning plate is connected with the probe mounting plate, and the plurality of probe assemblies are arranged in a row on the positioning plate.

3. The battery module OCV tester of claim 2, wherein: The positioning plate is a rectangular flat plate, and the length direction of the positioning plate is provided with a guide block and a fixed block at both ends respectively, the guide block is provided as a wedge-shaped block, the fixed block is provided with a fastener, and the opposite sides of the length direction of the probe mounting plate are respectively provided with a connecting plate one and a connecting plate two, the connecting plate one is provided with a positioning hole one, the guide block is arranged in the positioning hole one, and the fixed block is fixedly connected with the connecting plate two through the fastener.

4. The battery module OCV tester of claim 2, wherein: The probe assembly comprises a lower end fixed block, an intermediate limiting block and at least one probe, the lower end fixed block is fixedly connected with the positioning plate, the intermediate limiting block is locked on the lower end fixed block by a screw, the probe is arranged on the intermediate limiting block and the lower end fixed block, and the test end of the probe penetrates the lower end of the lower end fixed block.

5. The battery module OCV tester of claim 4, wherein: The intermediate limiting block is connected with a top limiting block, the top limiting block is provided with a limiting groove, and the upper end of the probe is arranged in the limiting groove.

6. The battery module OCV tester of claim 1, wherein: A plurality of guide sleeves one are arranged on the upper mounting plate, a plurality of guide columns one are connected with the probe mounting plate, the plurality of guide sleeves one and the plurality of guide columns one are arranged one by one, the guide column one penetrates the guide sleeve one, and the guide column one can slide in the guide sleeve one.

7. The battery module OCV tester of claim 1, wherein: The tray positioning unit comprises at least one jacking cylinder and a jacking plate, the jacking cylinder is fixedly mounted on the test machine, and the jacking plate is connected with the output end of the jacking cylinder.

8. The battery module OCV tester of claim 7, wherein: A plurality of guide sleeves two are arranged on the test machine, a plurality of guide columns two are connected with the jacking plate, the plurality of guide sleeves two and the plurality of guide columns two are arranged one by one, the guide column two penetrates the guide sleeve two, and the guide column two can slide in the guide sleeve two.

9. The battery module OCV tester of claim 8, wherein: The jacking plate is provided with a plurality of positioning columns, the battery tray is provided with a plurality of positioning holes two on the end face opposite to the jacking plate, the plurality of positioning columns and the plurality of positioning holes two are arranged one by one, and the positioning column is arranged in the positioning hole two to realize the positioning between the battery tray and the jacking plate.

10. The battery module OCV tester of claim 1, wherein: The upper end face of the battery tray is provided with a battery supporting block and a battery positioning block, the battery supporting block is used to support the battery, and the battery positioning block is used to position the corner of the battery.

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