Battery module OCV test equipment

Abstract

The utility model relates to battery module OCV test equipment, and belongs to the technical field of battery OCV test. Comprising a rack; the clamping assembly, the detecting assembly and the sorting assembly are installed on the machine frame. The clamping assembly is used for fixing a battery; the detection assembly detects whether the battery is qualified or not; the sorting assembly is used for pushing unqualified batteries away from the rack; the sorting assembly comprises a pushing air cylinder, the pushing air cylinder is installed on the rack, and the output end of the pushing air cylinder pushes unqualified batteries away from the rack; unqualified batteries are automatically removed, potential safety hazards existing in the manual taking-out process are avoided, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery OCV testing, and in particular relates to a battery module OCV testing device. Background Art

[0002] Battery OCV testing refers to testing the open circuit voltage of the battery. Specifically, the open circuit voltage of the battery can be measured by connecting the test probe to the positive and negative poles of the battery.

[0003] For example, the patent document with application number CN201911035745.0 discloses an OCV testing device, including: a frame for installing working parts; a motion mechanism unit, arranged in the installation cavity of the frame, including a probe plate assembly and a motion mechanism; a tray conveying unit, used to place the tray and convey the tray to the tray conveying line outside the frame; a battery tray; an OCV testing unit, used to collect the OCV parameters of the soft-pack power lithium-ion battery to be tested; and a controller, arranged in the installation cavity of the frame, the control ends of the motion mechanism unit and the tray conveying unit are electrically connected to the corresponding pins of the controller; the signal output end of the motion mechanism unit is electrically connected to the OCV testing unit, and the signal output end of the controller is connected to the signal input end of the external server, which is compatible with a variety of battery sizes, improves the efficiency of automated production, realizes automatic detection of battery OCV parameters, and is simple to operate.

[0004] For example, the patent document with application number CN202310198076.9 discloses an OCV testing device, including a frame and an operating table arranged on the frame, a turntable for placing lithium batteries is horizontally arranged on the operating table, and a testing assembly is arranged on the inner plate of the frame above the turntable; a material unloading assembly, a material receiving assembly and a defective product conveying assembly are respectively arranged on the other side of the frame; the testing assembly includes a linear test rail fixedly arranged on the frame, a slider sliding in cooperation with the linear test rail, a mounting plate extending to the outside of the linear test rail is arranged on the slider, the mounting plate is used to install the testing equipment, and photoelectric switches are respectively arranged at both ends of the outer side of the linear test rail. The present invention can meet the needs of testing multiple batteries at one time, and can realize continuous testing of batteries, thereby improving the testing efficiency of batteries.

[0005] For example, the patent document with application number CN202310397547.9 discloses an OCV testing device, including a rack assembly, a conveying assembly is arranged in the rack assembly, the conveying assembly is used to convey the battery to be tested, a lifting assembly is arranged at the bottom of the conveying assembly, and test assemblies are arranged on both sides of the conveying assembly. The conveying assembly conveys the battery to be tested to the top of the lifting assembly, and the lifting assembly is used to lift the battery to be tested to the test station of the test assembly. A metal cover assembly is arranged above the lifting assembly, and the metal cover assembly includes a metal cover and a channel switching module. By adding the metal cover, the metal cover covers the battery to be tested during the test, so that the influence of eddy current on the AC internal resistance test can be eliminated during the test, thereby achieving the stability and consistency of the AC internal resistance value even if the test environment is changed.

[0006] For example, the patent document with application number CN201120122868.0 discloses a test device, including a hydraulic cylinder and a bracket with a pressure plate and a base, the piston rod of the hydraulic cylinder is connected to the pressure plate, driving the pressure plate to move up and down along the guide column; the fixture is divided into an upper fixture and a lower fixture, the upper fixture is fixed to the lower surface of the pressure plate with bolts, the lower fixture is installed on the lower plate in the bracket, the workpiece to be tested cooperates with the lower fixture to form a sealed cavity; the lower fixture has an air inlet and an air outlet, both of which are connected to the sealed cavity; one end of the air outlet pipe is connected to the air outlet, and the other end is connected to the exhaust solenoid valve, and a pressure sensor is installed on the air outlet pipe, and is connected to the PLC control circuit in the control box. Its advantages are that the upper and lower molds made of rubber accurately match the product, avoiding the cumbersome process of installing and removing screws, and reducing the mismeasurement rate; multiple groups of products can be tested at the same time, the test parameters of each group of products can be adjusted independently, and the test results are automatically judged and displayed independently, which improves the utilization rate of the equipment.

[0007] However, the current OCV test is performed by workers manually placing the soft-pack battery on the test fixture of the test device, and then relying on the lifting probe in the test device to abut the positive and negative ears of the battery to perform the OCV test on the soft-pack battery. When an unqualified soft-pack battery is detected, it needs to be manually removed. However, in order to ensure work efficiency during the removal process, the test equipment cannot be stopped. In this way, when the unqualified soft-pack battery is manually removed, the test equipment is still in operation, which may easily pose a threat to personal safety. Utility Model Content

[0008] The utility model aims to provide a battery module OCV testing device, which is used to solve the problem in the prior art that after unqualified soft-pack batteries are detected, they need to be manually removed, which may pose a threat to personal safety during the removal process.

[0009] The purpose of the utility model can be achieved through the following technical solutions:

[0010] A battery module OCV test equipment:

[0011] Including rack;

[0012] A clamping assembly, a detection assembly and a sorting assembly installed on the frame;

[0013] The clamping assembly is used to fix the battery;

[0014] The detection component detects whether the battery is qualified;

[0015] The sorting component pushes unqualified batteries away from the rack;

[0016] The sorting assembly comprises a push cylinder which is mounted on the frame, and an output end of the push cylinder pushes unqualified batteries away from the frame.

[0017] As a further solution of the utility model: the sorting assembly also includes a connecting rod and a sleeve, the sleeve is installed on the push cylinder; one end of the connecting rod protrudes from one side of the sleeve; the other end of the connecting rod is slidably arranged on the inner wall of the sleeve and connected to the output end of the push cylinder.

[0018] As a further solution of the utility model: the connecting rod is T-shaped, and the T-shaped head of the connecting rod is used to push the unqualified batteries away from the rack.

[0019] As a further solution of the utility model: the detection component includes a detection cylinder and a detection probe, and the detection probe is installed at the output end of the detection cylinder.

[0020] As a further solution of the utility model: it also includes a mounting frame installed on the frame, and the clamping assembly and the detection assembly are both installed on the mounting frame.

[0021] As a further solution of the utility model: a dump truck is connected to one side of the rack, and the dump truck is used to receive unqualified batteries pushed away from the rack.

[0022] Beneficial effects of the utility model:

[0023] The utility model discloses a battery module OCV testing device which places batteries to be tested on a conveyor roller belt in sequence for conveying. The batteries are conveyed to the bottom of a detection component, a clamping component fixes the batteries and the detection component detects whether the batteries are qualified. If they are unqualified, the clamping component releases the batteries, the piston rod of the push cylinder extends to push the batteries away from the frame, the piston rod of the push cylinder is retracted, and then the next battery is tested. If they are qualified, the clamping component releases the batteries, the qualified batteries continue to be conveyed along the conveyor roller belt, and then the next battery is tested, so that unqualified batteries are automatically removed, thereby avoiding safety hazards in the manual removal process and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 This is a front view of a battery module OCV testing device proposed by the utility model;

[0026] Figure 2 This is a side view of a battery module OCV test device proposed by the utility model;

[0027] Figure 3 It is a schematic diagram of the external structure of a battery module OCV testing device proposed by the utility model.

[0028] In the figure: 1. Reversing truck; 2. Frame; 3. Clamping assembly; 4. Detection assembly; 41. Detection cylinder; 42. Detection probe; 51. Push cylinder; 52. Connecting rod; 53. Sleeve; 6. Driving assembly; 7. Conveyor roller; 8. Casing; 9. Mounting frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-3 As shown, a battery module OCV testing device includes a frame 2, a housing 8 is provided on the outside of the frame 2, and also includes a clamping component 3, a detection component 4 and a sorting component installed on the frame 2; wherein the clamping component 3 is used to fix the battery; the detection component 4 detects whether the battery is qualified; and also includes a sorting component, which pushes unqualified batteries away from the frame 2; the sorting component includes a pushing cylinder 51, which is installed on the frame 2, and the output end of the pushing cylinder 51 faces the battery.

[0031] In one embodiment, the sorting assembly also includes a connecting rod 52 and a sleeve 53, the sleeve 53 is installed on the push cylinder 51; one end of the connecting rod 52 protrudes from one side of the sleeve 53; the other end of the connecting rod 52 is slidably set on the inner wall of the sleeve 53 and connected to the output end of the push cylinder 51.

[0032] In one embodiment, the connecting rod 52 is T-shaped, and the T-shaped head of the connecting rod 52 is used to push the unqualified batteries away from the rack 2 .

[0033] In one embodiment, the detection assembly 4 includes a detection cylinder 41 and a detection probe 42 , and the detection probe 42 is installed at the output end of the detection cylinder 41 .

[0034] In one embodiment, it further includes a mounting frame 9 mounted on the frame 2 , and the clamping assembly 3 and the detection assembly 4 are both mounted on the mounting frame 9 .

[0035] In one embodiment, a dump truck 1 is connected to one side of the rack 2 , and the dump truck 1 is used to receive unqualified batteries pushed away from the rack 2 .

[0036] In one embodiment, a driving assembly 6 is further included, and the driving assembly 6 includes two clamping cylinders. The piston rods of the two clamping cylinders extend to drive the clamping assembly 3 to clamp and fix the battery, and the piston rods of the two clamping cylinders shorten to drive the clamping assembly 3 to release the battery.

[0037] The working principle of a battery module OCV test device involved in the utility model is as follows:

[0038] The batteries to be tested are placed on the conveyor roller belt 7 in turn for conveyance, and the batteries are conveyed to the bottom of the detection component 4. The clamping component 3 fixes the batteries and passes through the detection component 4 to detect whether the batteries are qualified. If they are unqualified, the clamping component 3 releases the batteries, and the piston rod of the push cylinder 51 extends to push the batteries away from the frame 2, and then the piston rod of the push cylinder 51 is retracted, and then the next battery is tested; if they are qualified, the clamping component 3 releases the batteries, and the qualified batteries continue to be conveyed along the conveyor roller belt 7, and then the next battery is tested.

[0039] The above describes some embodiments of the utility model in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A battery module OCV test device, comprising a frame; a clamping assembly, a detection assembly and a sorting assembly mounted on the frame; the clamping assembly is used to fix the battery; the detection assembly detects whether the battery is qualified; characterized in that: The machine also includes a sorting assembly, which pushes unqualified batteries away from the rack; the sorting assembly includes a push cylinder, which is installed on the rack, and the output end of the push cylinder faces the battery; The sorting assembly further comprises a connecting rod and a sleeve, wherein the sleeve is mounted on the push cylinder; one end of the connecting rod protrudes from one side of the sleeve; the other end of the connecting rod is slidably disposed on the inner wall of the sleeve and connected to the output end of the push cylinder; The connecting rod is T-shaped, and the T-shaped head of the connecting rod is used to push the unqualified battery away from the rack; The detection assembly includes a detection cylinder and a detection probe, and the detection probe is installed at the output end of the detection cylinder; It also includes a mounting frame mounted on the frame, and the clamping assembly and the detection assembly are both mounted on the mounting frame; One side of the rack is connected to a dump truck, and the dump truck is used to receive unqualified batteries pushed away from the rack.

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