Stacked battery pack function test equipment

Abstract

The invention aims to provide the stacked battery pack function test equipment which is compact in structure and capable of realizing batch test and ensuring the test precision at the same time. The device comprises a rack, the rack is provided with a plurality of frame modules, the frame modules are provided with a plurality of layers of carrier plate modules and a plurality of layers of probe modules, the probe modules are arranged on back plates of the frame modules, and each probe module comprises a test probe, an electromagnet and a buffer rebound assembly. The end part of the carrier plate module is provided with a magnetic attraction iron block, when the carrier plate module slides to the front end of the probe module, the electromagnet is in adsorption fit with the magnetic attraction iron block, the test needle is in contact with a to-be-tested product for testing, when the test is finished, the electromagnet is powered off, and the probe module is powered off. And the buffer rebound assembly pushes out the carrier plate module forwards. The invention is applied to the technical field of detection equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection equipment, and particularly relates to a stacked battery pack function test equipment. BACKGROUND

[0002] With the rapid development of electrochemical energy storage systems and electric vehicles, the safety and reliability of lithium ion battery packs as the core energy storage unit have become the focus of the industry. Overcharge protection function detection is a special evaluation of the response capability of the battery management system when the charging voltage exceeds the safety threshold, and is a key technical link to prevent thermal runaway and ensure safe operation of the system. Under the overcharge state, irreversible side reactions occur inside the battery, leading to decomposition of electrolyte, destruction of positive material structure, and accompanied by the generation of a large amount of heat and gas, which may eventually cause combustion or explosion accidents. Therefore, this detection project is not only related to the service life of the battery pack, but also directly affects the safety performance of the whole machine equipment and the personal safety of the user. At present, this detection has been widely applied to the quality management system of new energy vehicles, energy storage power stations, consumer electronic products and other fields, and has become a mandatory test project for battery pack factory inspection and regular maintenance.

[0003] A fuel cell electric control board detection device is disclosed in Chinese Patent No. CN217484378U, in which a power supply module, a clamp and a load are connected in sequence. The clamp includes a bracket, a pressure rod, an upper plate and a lower plate fixed on the bracket, the pressure rod is connected with the upper plate, and a probe is fixed on the inner surface of the upper plate. The probe is connected with a host computer. The fuel cell electric control board is placed on the lower plate, the circuit board to be tested provided with test points is placed in the clamp, the power supply module, the circuit board and the load are connected in sequence, and the probe contacts the test points of the circuit board to be tested. However, the device can only test one electric control board at a time, the test efficiency is low, batch testing cannot be met, and it is difficult to ensure the test precision. When the driving stroke of the pressure rod is too large, the product will be excessively pressed, causing damage to the structure of the product. Therefore, it is necessary to provide a stacked battery pack function test equipment with compact structure, which can realize batch testing and ensure test precision. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a stacked battery pack function test equipment with compact structure, which can realize batch testing and ensure test precision.

[0005] The technical scheme adopted by the present application is: the present application comprises a rack, the rack is provided with a plurality of frame modules, the frame modules are provided with a plurality of layer load plate modules and a plurality of layer probe modules, the probe modules are arranged on the back plate of the frame modules, the probe modules comprise test needles, electromagnets and buffer rebound components, the end of the load plate module is provided with a magnetic iron block, when the load plate module slides to the front end of the probe module, the electromagnet and the magnetic iron block are adsorbed and matched, the test needles are in contact with the products to be tested, when the test is completed, the electromagnet is powered off, and the buffer rebound component pushes the load plate module forward. As can be seen from the above scheme, the product to be tested is placed in the load plate module, the load plate module is manually pushed to slide to the front end of the probe module, the electromagnet is powered on to adsorb the load plate module, at the same time, the test needles are in contact with the product to be tested, the start button is manually triggered to start the test. When the test is completed, the electromagnet is powered off, and the buffer rebound component pushes the load plate module a distance, reminding the operator that the test is completed, pulling out the load plate module, and manually taking away the test product. The load plate module is of a drawer type structure, the overall structure is compact, a plurality of products can be tested at the same time, batch testing can be realized, the load plate module is of a push-pull type structure, facilitating feeding and discharging, when the electromagnet is powered on, the electromagnet adsorbs the load plate module through the magnetic iron block, the test needles are in contact with the product to be tested for testing, so that the test needles and the product to be tested are in continuous contact, thereby ensuring the stability of the test and being beneficial to improving the test precision.

[0006] A preferred scheme is that the probe module further comprises a load plate, a linear guide rail and a slide rail support block are slidably arranged at the bottom of the load plate, a profiling groove matched with the product is formed in the top of the load plate, the magnetic iron block is arranged at the rear end of the load plate, the probe module further comprises a mounting plate, the test needles, the electromagnets and the buffer rebound component are arranged at the front end of the mounting plate.

[0007] A preferred scheme is that the front end of the mounting plate is provided with a needle block and a probe top plate, the needle block is connected with the mounting plate through a first equal-height screw, a first compression spring is sleeved on the first equal-height screw, and a plurality of test needles are inserted into the probe top plate.

[0008] A preferred scheme is that the front end of the mounting plate is provided with a needle mold positioning pin, the rear end of the load plate is provided with a needle mold positioning block, and the needle mold positioning pin is inserted into the needle mold positioning block in a matched mode.

[0009] A preferred scheme is that the buffer rebound component comprises a second equal-height screw, the second equal-height screw is arranged at the front end of the mounting plate, a second compression spring is sleeved on the second equal-height screw, and the second equal-height screw is in top pressure cooperation with the rear end of the load plate.

[0010] One preferred solution is that the front end of the mounting plate is provided with a temperature sensor and a proximity sensor, and the front side of the mounting plate is provided with the code scanning gun, and the muzzle of the code scanning gun is upwardly arranged.

[0011] One preferred solution is that the front end of the carrier plate is provided with a handle, and the front side of the mounting plate is provided with a buckle type limiting damper, which is limitedly matched with the front end of the carrier plate.

[0012] One preferred solution is that the number of the frame modules is two, and the two frame modules are arranged at the top of the rack, and the number of layers of the carrier plate module and the probe module is four, and the frame module is a drawer type structure.

[0013] One preferred solution is that the top of the rack is provided with a double display screen and a keyboard, and the inside of the rack is provided with a test board card and a control module, and the test board card and the control module are in communication connection with the test needle.

[0014] One preferred solution is that the left and right ends of the frame module and the front and rear ends of the rack are provided with cooling fans. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the perspective view of the present application; Figure 2 is the exploded view of the rack; Figure 3 is the perspective view of the frame module; Figure 4 is the perspective view of the probe module; Figure 5 is the perspective view of the carrier plate module. DETAILED DESCRIPTION

[0016] As shown in the drawings, Figures 1 to 5 in the present embodiment, the present application comprises a rack 1, which is provided with a plurality of frame modules 2, the frame modules 2 are provided with a plurality of layers of carrier plate modules 3 and a plurality of layers of probe modules 4, the probe modules 4 are arranged on the back plate of the frame module 2, the probe module 4 comprises test needles 5, electromagnets 6 and buffer rebound assemblies 7, the end of the carrier plate module 3 is provided with a magnetic iron block 8, when the carrier plate module 3 slides to the front end of the probe module 4, the electromagnet 6 is adsorbed and matched with the magnetic iron block 8, the test needle 5 is in contact with the product to be tested, when the test is completed, the electromagnet 6 is powered off, and the buffer rebound assembly 7 pushes the carrier plate module 3 forward.

[0017] The product to be tested is placed in the carrier module 3, the carrier module 3 is manually pushed to the front end of the probe module 4, the electromagnet 6 is powered on to adsorb the carrier module 3, at the same time, the test needle 5 contacts the product to be tested, the start button is manually triggered to start the test. After the test is completed, the electromagnet 6 is powered off, the buffer rebound assembly 7 pushes the carrier module 3 out for a distance, reminding the operator that the test is completed, pulling out the carrier module 3, manually taking away the test product. The carrier module 3 is a drawer type structure, the overall structure is compact, can test multiple products at the same time, can realize batch testing, the carrier module 3 is a push-pull type structure, which is convenient for feeding and discharging, when the electromagnet 6 is powered on, the electromagnet 6 adsorbs the carrier module 3 through the magnetic iron block 8, the test needle 5 contacts the product to be tested for testing, so that the test needle 5 and the product to be tested are in continuous contact, thereby ensuring the stability of the test, which is beneficial to improve the test precision.

[0018] As shown in Figures 1 to 5 the embodiment, the probe module 4 further comprises a carrier 9, the bottom of the carrier 9 is slidably provided with linear guide rails 10 and slide rail supporting blocks 11, the top of the carrier 9 is provided with a profiling groove 12 matched with the product, the magnetic iron block 8 is arranged at the rear end of the carrier 9, the probe module 4 further comprises a mounting plate 13, the test needle 5, the electromagnet 6 and the buffer rebound assembly 7 are arranged at the front end of the mounting plate 13. The profiling groove 12 is provided with positioning blocks at four corners, the positioning blocks are used for positioning the product to be tested, and the magnetic iron block 8 is used for adsorbing the electromagnet 6. Two linear guide rails 10 are installed at the bottom of the carrier 9, and the slide rail supporting blocks 11 are in sliding cooperation with the linear guide rails 10.

[0019] As shown in Figures 1 to 5 the embodiment, the front end of the mounting plate 13 is provided with a needle block 14 and a probe top plate 15, the needle block 14 is connected with the mounting plate 13 through a first equal-height screw 16, the first equal-height screw 16 is sleeved with a first compression spring 17, and a plurality of test needles 5 are inserted into the probe top plate 15. A plurality of test needles 5 are installed in the needle holes of the needle block 14, and the probe top plate 15 fixes the test needles 5 from falling off. The first compression spring 17 and the first equal-height screw 16 form a floating structure, so that the probe module 4 and the carrier module 3 are floatingly positioned, avoiding jamming.

[0020] As shown in Figures 1 to 5 the embodiment, the front end of the mounting plate 13 is provided with a needle mold positioning pin 18, the rear end of the carrier 9 is provided with a needle mold positioning block 19, the needle mold positioning pin 18 is in plug-in cooperation with the needle mold positioning block 19, and the rough positioning of installation is realized.

[0021] As shown in Figures 1 to 5As shown, in this embodiment, the buffer rebound assembly 7 includes a second equalizing screw 20, which is disposed at the facing end of the mounting plate 13. A second compression spring 21 is fitted onto the second equalizing screw 20, and the second equalizing screw 20 engages with the rear end of the carrier plate 9. The second compression spring 21 and the second equalizing screw 20 constitute the buffer rebound assembly 7. After the test, the buffer rebound assembly 7 is used to push the carrier plate module 3 out a short distance, indicating to the operator that the channel has been tested.

[0022] like Figures 1 to 5 As shown, in this embodiment, a temperature sensor 22 and a proximity sensor 23 are provided at the front end of the mounting plate 13, and a barcode scanner 24 is provided on the front side of the mounting plate 13 with the muzzle facing upwards. The carrier plate module 3 is manually pushed to slide to the front end of the probe module 4. When the proximity sensor 23 senses the carrier plate 9, the electromagnet 6 is energized, attracting the carrier plate module 3. The proximity sensor 23 confirms that the carrier plate 9 is in place, activates the barcode scanner 24, reads the product information, and begins testing. The temperature sensor 22 is used to detect the ambient temperature around the product under test.

[0023] like Figures 1 to 5 As shown, in this embodiment, a handle 25 is provided at the front end of the carrier plate 9, and a snap-fit ​​limiting damper 26 is provided on the front side of the mounting plate 13. The snap-fit ​​limiting damper 26 is engaged with the front end of the carrier plate 9 for limiting. The carrier plate 9 is moved in and out by pushing and pulling the handle 25. When the carrier plate module 3 is pulled out, the snap-fit ​​limiting damper 26 is used to limit the carrier plate 9.

[0024] like Figures 1 to 5 As shown, in this embodiment, there are two sets of frame modules 2, which are respectively set on the top of the rack 1. The carrier module 3 and the probe module 4 are both four layers. The frame module 2 has a drawer-type structure, which is compact and can test multiple products at the same time, enabling batch testing.

[0025] like Figures 1 to 5 As shown, in this embodiment, the top of the rack 1 is provided with a dual display screen 27 and a keyboard 28, and the inside of the rack 1 is provided with a test board and a control module. Both the test board and the control module are communicatively connected to the test probe 5.

[0026] like Figures 1 to 5 As shown, in this embodiment, cooling fans 29 are provided at both ends of the frame module 2 and at both ends of the rack 1, with air intake at the front and exhaust at the rear, to reduce the air temperature inside the rack and ensure the testing accuracy of the testing instruments.

[0027] Although the embodiments of the present application are described in the practical schemes, they do not constitute a limitation to the meaning of the present application, and modifications to the embodiments thereof and combinations with other schemes according to the present specification are obvious to those skilled in the art.

Claims

1. A stacked battery pack functional test device comprising a rack (1) provided with several frame modules (2), characterized in that, The frame module (2) is provided with a plurality of layers of carrier plate modules (3) and a plurality of layers of probe modules (4), the probe module (4) is arranged on the back plate of the frame module (2), the probe module (4) comprises test needles (5), electromagnets (6) and buffer rebound components (7), the end of the carrier plate module (3) is provided with a magnetic iron block (8), when the carrier plate module (3) slides to the front end of the probe module (4), the electromagnet (6) is adsorbed and matched with the magnetic iron block (8), the test needle (5) is in contact with the product to be tested, when the test is completed, the electromagnet (6) is powered off, and the buffer rebound component (7) pushes the carrier plate module (3) forward.

2. The stacked battery pack functional test apparatus according to claim 1, characterized by: The probe module (4) further comprises a carrier plate (9), the bottom of the carrier plate (9) is slidably provided with a linear guide rail (10) and a slide rail supporting block (11), the top of the carrier plate (9) is provided with a profiling groove (12) matched with the product, the magnetic iron block (8) is arranged at the rear end of the carrier plate (9), and the probe module (4) further comprises a mounting plate (13), the test needle (5), the electromagnet (6) and the buffer rebound component (7) are arranged on the front end of the mounting plate (13).

3. The stacked battery pack functional test apparatus according to claim 2, characterized by: The front end of the mounting plate (13) is provided with a needle block (14) and a probe top plate (15), the needle block (14) is connected with the mounting plate (13) through a first equal-height screw (16), the first equal-height screw (16) is sleeved with a first compression spring (17), and a plurality of test needles (5) are inserted into the probe top plate (15).

4. The stacked battery pack functional test apparatus according to claim 3, characterized by: The front end of the mounting plate (13) is provided with a needle mold positioning pin (18), the rear end of the carrier plate (9) is provided with a needle mold positioning block (19), and the needle mold positioning pin (18) is inserted into the needle mold positioning block (19) in a matched mode.

5. The stacked battery pack functional test apparatus according to claim 2, characterized by: The buffer rebound component (7) comprises a second equal-height screw (20), the second equal-height screw (20) is arranged at the front end of the mounting plate (13), the second equal-height screw (20) is sleeved with a second compression spring (21), and the second equal-height screw (20) is in top pressure matching with the rear end of the carrier plate (9).

6. The stacked battery pack functional test apparatus according to claim 2, characterized by: The front end of the mounting plate (13) is provided with a temperature sensor (22) and a proximity sensor (23), the front side of the mounting plate (13) is provided with a code scanning gun (24), and the muzzle of the code scanning gun (24) is arranged upwards.

7. The stacked battery pack functional test apparatus according to claim 2, characterized by: The front end of the carrier plate (9) is provided with a handle (25), the front side of the mounting plate (13) is provided with a buckle type limiting damper (26), and the front end of the carrier plate (9) is in limiting matching with the buckle type limiting damper (26).

8. The stacked battery pack functional test apparatus according to claim 1, characterized by: The number of the frame module (2) is two, the two frame modules (2) are arranged on the top of the rack (1) respectively, the number of layers of the carrier plate module (3) and the probe module (4) is four, and the frame module (2) is of a drawer type structure.

9. The stacked battery pack functional test apparatus according to claim 1, characterized by: The top of the frame (1) is provided with double display screens (27) and a keyboard (28), the inside of the frame (1) is provided with a test board and a control module, and the test board and the control module are in communication connection with the test needle (5).

10. The stacked battery pack functional test apparatus according to claim 1, characterized by: The left and right ends of the frame module (2) and the front and back ends of the frame (1) are provided with heat dissipation fans (29).

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