CN112363067A - Low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism and application - Google Patents
Low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism and application Download PDFInfo
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- CN112363067A CN112363067A CN202010037446.7A CN202010037446A CN112363067A CN 112363067 A CN112363067 A CN 112363067A CN 202010037446 A CN202010037446 A CN 202010037446A CN 112363067 A CN112363067 A CN 112363067A
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- 238000012360 testing method Methods 0.000 title claims abstract description 185
- 238000009413 insulation Methods 0.000 title claims abstract description 42
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 32
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 238000011056 performance test Methods 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000013508 migration Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/3865—Arrangements for measuring battery or accumulator variables related to manufacture, e.g. testing after manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention relates to the field of lithium battery detection, in particular to an insulation and voltage-withstand test mechanism for a low-voltage lithium ion power battery pack, which comprises a rack, wherein a module pressing assembly, a battery performance test assembly and a code scanning gun are arranged on the rack, a plurality of trays are also arranged on the rack, a module jacking assembly is also fixedly arranged below the module pressing assembly on the rack, and the rack is also provided with an insulation tester, a touch screen type industrial personal computer and a distribution box, wherein the insulation tester is connected with the battery performance test assembly through a circuit, the touch screen type industrial personal computer is used for storing data, and the distribution box is used for. The invention overcomes the defects that the insulation and voltage resistance test mechanism of the power battery pack in the prior art can not realize full-automatic test, and simultaneously has poor test stability and repeatability and difficult guarantee of data accuracy, thereby having the advantages of full-automatic test, and greatly improving the test stability, repeatability and efficiency; meanwhile, the test result and the test parameters cannot be changed at will, and the correctness of the test data is ensured.
Description
Technical Field
The invention relates to the field of lithium battery detection, in particular to a low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism and application thereof.
Background
When the lithium ion power battery pack is prepared, an insulation voltage-resistant test needs to be carried out on the lithium ion power battery pack so as to judge whether short circuit exists in the lithium ion power battery pack or not.
The insulation voltage-resistant test generally adopts a safety instrument, during the test, the instrument applies a voltage to the electric core, the voltage lasts for a specified time, then whether the leakage current quantity of the electric core is kept in a specified range is detected, and whether the anode and the cathode of the electric core are short-circuited or not is judged. Therefore, the insulation voltage-resistant test is an important step of product process inspection, unqualified products can be detected, and the safety coefficient of the final battery product is improved.
However, the existing equipment is a simple tester, the positive electrode, the negative electrode and the grounding point of the manual clamping battery form an insulation test loop, so that the problems of test leakage, repeated test, poor contact and the like easily occur, the manual clamping test efficiency is low, the randomness of the clamping position is large, and the precision of a test result is influenced. Meanwhile, the test result can only be qualitative judgment, whether the battery normally circulates or not is determined after the result is manually confirmed, the equipment test is poor, no alarm prompt is provided, and the manual test is easy to mix the poor products into the qualified products. And the test parameters of the existing equipment can be changed at will on the interface, thus influencing the test stability of the product.
For example, a power battery module insulation withstand voltage test tool with application number CN201822021097.0 includes a support plate, a plurality of test probes and copper bars, wherein the plurality of test probes are arranged on the support plate and are arranged in one-to-one correspondence with the cell poles in the power battery module, and the plurality of test probes are connected with each other through the copper bars so as to connect the cells in the corresponding power battery module in series or in parallel; the copper bar part is exposed outside the supporting plate and used for being matched with a test meter to detect the insulation and voltage resistance of the power battery module. The utility model discloses a withstand voltage test frock adopts test probe and copper bar cooperation, makes the electric core in the power battery module establish ties or parallelly connected, and then the accessible test table comes to detect the withstand voltage performance of power battery module, can effectively detect the little short circuit problem that exists in the power battery module, solves the little short circuit problem between the electric core that exists and the electric core after the power battery module assembles. However, the testing tool still has the defects that manual clamping is still needed in the self-testing process, and the purpose of full-automatic testing cannot be achieved.
Disclosure of Invention
The invention provides a low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism which can carry out full-automatic detection on a power battery pack, can avoid damage to a battery pole and a shell during testing, improves the stability and the repeatability of testing, improves the testing efficiency and ensures the correctness of testing data, and aims to overcome the defects that the power battery pack insulation and voltage resistance testing mechanism in the prior art can not realize full-automatic testing, has poor testing stability and repeatability and is difficult to ensure the accuracy of data.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a low pressure lithium ion power battery package insulation withstand voltage accredited testing organization, includes module production water line, production water line includes the frame, is provided with a set of module on it and compresses tightly subassembly, a plurality of battery capability test subassembly and one and sweeps a yard rifle, still be provided with a plurality of trays that can follow frame horizontal migration in the frame, the frame is located the module and compresses tightly the subassembly below and still fixedly is provided with a module jacking subassembly, still be provided with an insulation tester, a touch-screen industrial computer that is used for storage data and a block terminal that provides electric power with battery capability test subassembly line connection in the frame.
The insulation and voltage resistance testing mechanism is a part of a production line of a low-voltage lithium ion power battery module, can automatically flow into the detection process from the previous process, when the battery module moves below the module pressing component along with the tray, the module lifting component below the battery module can lift the tray upwards, so that the battery module is tightly fixed by matching with the module pressing component, the battery performance testing component can conveniently test the battery module, the code scanning gun can scan the code of the battery module in the lifting process of the battery module, and the test data can be recorded into the industrial personal computer in a one-to-one correspondence manner by matching with a touch screen type industrial personal computer arranged in the invention, so that the data can be stored by the industrial personal computer and matched with a module bar code, and the tracking and the copying analysis are convenient. In addition, each test parameter in the industrial personal computer does not need to be manually input, misoperation is reduced, the stability and the repeatability of the test are improved, the test parameters in the industrial personal computer are protected by passwords and cannot be randomly changed, and the correctness of test data is ensured.
Preferably, the frame includes four supporting legs that are used for the support and sets up two assembly line curb plates in the supporting leg upper end, assembly line curb plate up end is provided with the conveyor belt strip, the tray erects on the conveyor belt strip.
The rack comprises supporting legs for supporting and a production line side plate for conveying the tray, the conveying belt strips on the production line side plate can convey the tray to the detection process from the previous process, and the battery module after detection is conveyed to the next process.
Preferably, the module jacking assembly comprises a fixed plate fixedly connected with the lower end face of the assembly line side plate and a module tray connected with the fixed plate in a vertical sliding mode, and a limiting seat is arranged on the fixed plate, a jacking cylinder is arranged in the middle of the fixed plate, and the upper end of a piston rod of the jacking cylinder is fixedly connected with the module tray.
The module jacking assembly is fixed on the lower end face of the side plate of the assembly line, so that the tray cannot be shielded from the module jacking assembly when moving above the module jacking assembly, and the jacking cylinder is arranged to jack the module tray on the limiting seat under the operation of the cylinder, so that the tray is effectively lifted, and the module jacking assembly is matched with the module pressing assembly to fix the battery module.
Preferably, the fixed plate left and right sides is provided with the erection joint board that is used for with assembly line curb plate fixed connection, the equal fixed connection in four angles departments of fixed plate is provided with a cavity sleeve pipe, the module tray is placed four angles departments of terminal surface under the spacing seat and is equallyd divide and do not be provided with one and be used for the cover to establish the slide bar at cavity sheathed tube inside, the module tray is placed spacing seat up end and is provided with 3 stoppers that are the setting of C font range.
Preferably, the middle part of the rack is also fixedly connected with a partition plate, and the insulation tester and the distribution box are arranged on the partition plate.
Preferably, the module pressing assembly comprises a first support fixedly connected with the frame, and a module pressing cylinder is arranged at the upper end of the first support.
Preferably, the battery performance testing assembly includes a module housing connection screw test head assembly and an integral positive and an integral negative terminal test head assembly.
The module shell connecting screw test head assembly can be used for testing whether a loop of battery hardware is connected or not, and the insulation values of the total positive end and the total negative end of the battery can be tested through the total positive end test head assembly and the total negative end test head assembly after the loop is connected.
Preferably, the module shell connecting screw testing head assembly comprises a first support fixedly connected with the rack, a first testing down-pressing cylinder is arranged at the upper end of the first support, and a shell connecting screw testing head is arranged at the lower end of the first testing down-pressing cylinder.
Preferably, the upper ends of the total positive and total negative end test head assemblies are provided with a second test descending cylinder, the lower end parts of the total positive and total negative end test head assemblies are provided with a transverse moving cylinder, and the end parts of the transverse moving cylinder are also provided with an elastic test head.
According to the invention, each testing mechanism achieves a flexible testing effect by combining a plurality of cylinders, and the elastic testing head is informed to avoid damage to the battery pole and the shell during testing.
A method for testing the insulation and voltage resistance of a low-voltage lithium ion power battery pack comprises the following steps:
(S.1) scanning and fixing: starting an insulation and voltage resistance testing mechanism, conveying and transferring the tray and the battery module on the tray to a testing station through a conveying belt strip, enabling a module jacking assembly to work, lifting the tray, and scanning the bar code on the battery module by a code scanning gun;
if the scanning is successful, fixing the battery module by matching with the downward pressing of the module pressing assembly;
if the scanning is unsuccessful, manually inputting the bar code until the module pressing component presses down to fix the battery module;
(S.2) hardware loop test: starting a module shell connecting screw test head assembly to be connected with the battery module and testing whether a hardware loop is connected or not;
if the loop is connected, the next test is carried out;
if the loop is not connected, manually maintaining the hardware loop until the hardware loop is connected to carry out the next test;
(S.3) testing the total positive terminal and the total negative terminal: sequentially testing the electrical loops of the total positive end and the total negative end of the battery module by the battery module through the total positive end testing head assembly and the total negative end testing head assembly;
(S.3) judging the result: the battery module is through always just, the total negative terminal test back, judges the test result to through touch-screen industrial computer record data, with module shell connecting screw test head subassembly, always just, total negative terminal test head subassembly, module compress tightly subassembly and module jacking subassembly respectively return the normal position simultaneously, with qualified battery module circulation to next station of test result, the unqualified battery module of test result then circulates to the discharge port.
Therefore, the invention has the following beneficial effects:
(1) the testing process and the code scanning are fully automatic, damage to the battery pole and the shell during testing is avoided, the stability and the repeatability of testing are improved, and the testing efficiency is improved;
(2) the test result is automatically recorded and bound with the bar code, so that the traceability of the product is ensured;
(3) the code scanning driving is adopted in the testing process, manual button pressing is not needed, and misoperation is reduced;
(4) the test parameter password is protected and cannot be changed at will, so that the correctness of test data is ensured.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
FIG. 2 is a schematic structural diagram of a module jacking assembly according to the present invention.
FIG. 3 is a schematic view of a module pressing assembly according to the present invention.
FIG. 4 is a schematic structural diagram of a module housing connection screw test head assembly according to the present invention.
FIG. 5 is a schematic diagram of the positive and negative end test head assemblies.
Fig. 6 is a flow chart of the device usage.
Wherein: the module production line 1, the frame 2, the module pressing component 3, the battery performance testing component 4, the tray 5, the module jacking component 6, the insulation tester 7, the touch screen type industrial personal computer 8, the distribution box 9, the supporting legs 10, the line side plates 11, the conveying belt strips 12, the module tray placement limiting seat 13, the jacking cylinder 14, the piston rod 15, the mounting connecting plate 16, the hollow sleeve 17, the slide rod 18, the limiting block 19, the separating plate 20, the first support 21, the module pressing cylinder 22, the module shell connecting screw testing head component 23, the total positive and negative end testing head component 24, the second support 25, the first test pressing cylinder 26, the shell connecting screw testing head 27, the third support 28, the second test descending cylinder 29, the transverse moving cylinder 30, the elastic testing head 31, the fixing plate 32, the battery module 33 and the code scanning gun 34.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific embodiments. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
Examples
As shown in figures 1-5, a low pressure lithium ion power battery package insulation withstand voltage accredited testing organization, including module production water line 1, it comprises frame 2 and two assembly line curb plates 11 of setting at frame 2 top at random, frame 2 includes four supporting legs 10 that are used for the support, assembly line curb plate 11 sets up in supporting leg 10 upper end, 11 up end of assembly line curb plate still is provided with the conveyor belt strip 12 that can remove about can, and conveyor belt strip 12 upper end frame is equipped with tray 5 that can follow 2 horizontal migration of frame.
The frame 2 can be divided into two layers from top to bottom, and is separated between the two layers through a division plate 20, and the module pressing assembly 3 is arranged on the upper layer of the frame 2 and fixedly connected with the assembly line side plate 11 and comprises a first support 21 fixedly connected with the frame 2, a module pressing cylinder 22 is arranged at the upper end of the first support, and a code scanning gun 34 is further arranged in the middle of the first support 21.
The frame 2 is located module and compresses tightly subassembly 3 below and still fixedly is provided with a module jacking subassembly 6, and it includes one with assembly line curb plate 11 lower terminal surface fixed connection's fixed plate 32 and one with fixed plate 32 about sliding connection's module tray place spacing seat 13, and fixed plate 32 middle part is provided with a jacking cylinder 14, and spacing seat 13 fixed connection is placed with the module tray to the 15 upper ends of piston rod and the module tray of jacking cylinder 14.
The fixed plate 32 left and right sides is provided with the erection joint board 16 that is used for with assembly line curb plate 11 fixed connection, and the equal fixed connection in four angle departments of fixed plate 32 is provided with a cavity sleeve pipe 17, the module tray is placed four angle departments of terminal surface under spacing seat 13 and is equallyd divide and do not be provided with one and be used for the cover to establish the slide bar 18 inside cavity sleeve pipe 17, and the module tray is placed spacing seat 13 up end and is provided with 3 stopper 19 that are the setting of C font range.
The upper layer of the frame 2 is also provided with a module shell connecting screw test head assembly 23 and a total positive and total negative end test head assembly 24 at the side of the module pressing assembly 3, wherein the module shell connecting screw test head assembly 23 comprises a second support 25 fixedly connected with the frame 2, the upper end of the module shell connecting screw test head assembly is provided with a first test pressing cylinder 26, and the lower end of the first test pressing cylinder 26 is provided with a shell connecting screw test head 27. The total positive and total negative end test head assembly 24 comprises a third support 28 fixedly connected with the frame 2, a second test descending cylinder 29 is arranged at the upper end, a transverse moving cylinder 30 is arranged at the lower end, and an elastic test head 31 is further arranged at the end part of the transverse moving cylinder 30.
The upper layer of the frame 2 is also provided with a touch screen type industrial personal computer 8 for storing data.
The frame 2 is provided with an insulation tester 7 and a distribution box 9 for providing electric power on a partition plate 20, the insulation tester 7 is respectively connected with the module pressing component 3, the module shell connecting screw test head component 23, the general positive and general negative terminal test head component 24 and the touch screen type industrial personal computer 8 through circuits.
As shown in fig. 6, the method of the present invention is as follows:
a method for testing the insulation and voltage resistance of a low-voltage lithium ion power battery pack comprises the following steps:
(S.1) scanning and fixing: starting an insulation and voltage resistance testing mechanism, conveying and transferring the tray 6 and the battery module 33 on the tray 6 to a testing station through the conveying belt strips 12, enabling the module jacking assembly 6 to work, lifting the tray 6, and scanning the bar codes on the battery module 33 by the code scanning gun 34;
if the scanning is successful, the battery module 33 is fixed by matching with the pressing of the module pressing component 3;
if the scanning is unsuccessful, manually inputting the bar code until the module pressing component 3 is pressed down to fix the battery module 33;
(S.2) hardware loop test: the starting module shell connecting screw test head assembly 23 is connected with the battery module 33 to test whether a hardware loop is connected or not;
if the loop is connected, the next test is carried out;
if the loop is not connected, manually maintaining the hardware loop until the hardware loop is connected to carry out the next test;
(S.3) testing the total positive terminal and the total negative terminal: sequentially testing the electrical circuits of the total positive end and the total negative end of the battery module 33 by the battery module 33 through the total positive end testing head assembly 24 and the total negative end testing head assembly 24;
(S.3) judging the result: after the battery module 33 is tested by the total positive terminal and the total negative terminal, the test result is judged, data is recorded by the touch screen type industrial personal computer 8, the module shell connecting screw test head assembly 23, the total positive terminal and the total negative terminal test head assembly 24, the module pressing assembly 3 and the module jacking assembly 6 return to the original positions respectively, the battery module 33 with qualified test result is transferred to the next station, and the battery module 33 with unqualified test result is transferred to the discharge port.
Through actual production tests, the insulation and voltage-withstand test mechanism for the low-voltage lithium ion power battery pack can effectively improve the test efficiency, the capacity is improved to 1000 sets/day from 385 sets/day in the prior art, and meanwhile, test data are stored in an industrial personal computer, so that the test data are convenient to look up and analyze at any time, and the correctness of the test data is not allowed to be modified and guaranteed.
Claims (10)
1. The utility model provides a low pressure lithium ion power battery package insulation withstand voltage test mechanism, a serial communication port, including module production water line (1), production water line (1) is provided with a set of module and compresses tightly subassembly (3), a plurality of battery capability test subassembly (4) and one and sweep yard rifle (34) including frame (2) on it, still be provided with a plurality of trays (5) that can follow frame (2) horizontal migration on frame (2), frame (2) are located module and compress tightly subassembly (3) below and still fixedly be provided with a module jacking subassembly (6), still be provided with an insulation tester (7) with battery capability test subassembly (4) line connection, a touch-screen formula (8) that are used for the storage data and a block terminal (9) that provides electric power computer on frame (2).
2. The low-voltage lithium ion power battery pack insulation withstand voltage testing mechanism is characterized in that the rack (2) comprises four supporting legs (10) for supporting and two assembly line side plates (11) arranged at the upper ends of the supporting legs (10), a conveying belt strip (12) is arranged on the upper end faces of the assembly line side plates (11), and the tray (5) is erected on the conveying belt strip (12).
3. The mechanism for testing the insulation and voltage resistance of the low-voltage lithium ion power battery pack according to claim 2, wherein the module jacking assembly (6) comprises a fixing plate (32) fixedly connected with the lower end face of the assembly line side plate (11) and a module tray placing limiting seat (13) vertically and slidably connected with the fixing plate (32), a jacking cylinder (14) is arranged in the middle of the fixing plate (32), and the upper end of a piston rod (15) of the jacking cylinder (14) is fixedly connected with the module tray placing limiting seat (13).
4. The insulation and voltage resistance testing mechanism for the low-voltage lithium ion power battery pack according to claim 3, wherein the left and right sides of the fixing plate (32) are provided with mounting connection plates (16) for fixedly connecting with the assembly line side plates (11), each of four corners of the fixing plate (32) is fixedly connected with a hollow sleeve (17), each of four corners of the lower end surface of the module tray placing limiting seat (13) is provided with a sliding rod (18) for being sleeved inside the hollow sleeve (17), and the upper end surface of the module tray placing limiting seat (13) is provided with 3 limiting blocks (19) arranged in a C-shaped arrangement.
5. The insulation and voltage withstand test mechanism of the low-voltage lithium ion power battery pack according to claim 1, 2, 3 or 4, characterized in that a partition plate (20) is fixedly connected to the middle of the frame (2), and the insulation tester (7) and the distribution box (9) are arranged on the partition plate (20).
6. The mechanism for testing the insulation and voltage withstand of the low-voltage lithium ion power battery pack as claimed in claim 1, wherein the module pressing assembly (3) comprises a first bracket (21) fixedly connected with the frame (2), and a module pressing cylinder (22) is arranged at the upper end of the first bracket.
7. The insulation and voltage withstand test mechanism of the low-voltage lithium ion power battery pack as claimed in claim 1, wherein the battery performance test assembly (4) comprises a module case connection screw test head assembly (23) and an overall positive and overall negative terminal test head assembly (24).
8. The insulation and voltage withstand test mechanism of the low-voltage lithium ion power battery pack according to claim 7, wherein the module housing connection screw test head assembly (23) comprises a second bracket (25) fixedly connected with the frame (2), a first test down-pressure cylinder (26) is arranged at the upper end of the second bracket, and a housing connection screw test head (27) is arranged at the lower end of the first test down-pressure cylinder (26).
9. The insulation and voltage withstand test mechanism of the low-voltage lithium ion power battery pack as claimed in claim 7, wherein the total positive and negative terminal test head assembly (24) comprises a third bracket (28) fixedly connected with the frame (2), a second test descending cylinder (29) is arranged at the upper end, a transverse moving cylinder (30) is arranged at the lower end, and an elastic test head (31) is arranged at the end of the transverse moving cylinder (30).
10. A method for testing the insulation and pressure resistance of a low-voltage lithium ion power battery pack by using the testing mechanism of claims 1-9 is characterized by comprising the following steps:
(S.1) scanning and fixing: starting an insulation and voltage-withstand test mechanism, transporting and transferring the tray (6) and the battery module (33) on the tray (6) to a test station through the conveying belt strips (12), lifting the tray (6) by the module lifting assembly (6) to work, and scanning the bar codes on the battery module (33) by the code scanning gun (34);
if the scanning is successful, the battery module (33) is fixed by matching with the downward pressing of the module pressing component (3);
if the scanning is unsuccessful, manually inputting the bar code until the module pressing component (3) is pressed down to fix the battery module (33);
(S.2) hardware loop test: a starting module shell connecting screw testing head assembly (23) is connected with the battery module (33) to test whether a hardware loop is connected or not;
if the loop is connected, the next test is carried out;
if the loop is not connected, manually maintaining the hardware loop until the hardware loop is connected to carry out the next test;
(S.3) testing the total positive terminal and the total negative terminal: sequentially testing the electrical loops of the total positive end and the total negative end of the battery module (33) by the battery module (33) through the total positive end testing head assembly (24) and the total negative end testing head assembly (24);
(S.3) judging the result: battery module (33) is through always just, the test of total negative terminal back, judge the test result, and through touch-screen industrial computer (8) record data, with module shell connecting screw test head subassembly (23), always just, total negative terminal test head subassembly (24), module compress tightly subassembly (3) and module jacking subassembly (6) and get back to the normal position respectively, with qualified battery module (33) group circulation of test result to next station, unqualified battery module (33) of test result then circulate to the discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037446.7A CN112363067A (en) | 2020-01-14 | 2020-01-14 | Low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010037446.7A CN112363067A (en) | 2020-01-14 | 2020-01-14 | Low-voltage lithium ion power battery pack insulation and voltage resistance testing mechanism and application |
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| CN112363067A true CN112363067A (en) | 2021-02-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075510A (en) * | 2021-03-30 | 2021-07-06 | 若宇汽车装备工业（昆山）有限公司 | Water-cooling plate voltage-resistant insulation testing device |
| CN115839882A (en) * | 2023-02-21 | 2023-03-24 | 国网辽宁省电力有限公司 | Performance tester for light high-insulation composite material |
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| CN113075510B (en) * | 2021-03-30 | 2023-02-28 | 若宇汽车装备工业（昆山）有限公司 | Water-cooling plate voltage-resistant insulation testing device |
| CN115839882A (en) * | 2023-02-21 | 2023-03-24 | 国网辽宁省电力有限公司 | Performance tester for light high-insulation composite material |
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