Dynamic testing device for electrical performance of CCS
Through the piston vibrator and spring thimble design of the CCS electrical performance dynamic test device, effective detection of false welding and false welding is achieved, the problem of unrecognizable static testing is solved, and the accuracy and reliability of the detection are improved.
Patent Information
- Application Number
- CN202422263154.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing static test of CCS electrical performance cannot effectively detect the problems of false welding and false welding, resulting in the failure of welding failure to be discovered in time.
The CCS electrical performance dynamic testing device is adopted, and the vibrating carrier plate is driven to vibrate up and down through a piston vibrator, and the spring thrust vibrating up and down, and the amplitude is transmitted to the CCS conductor, so that the conductor is in a floating state up and down, and the resistance fluctuation is used to determine the welding failure.
Effectively detect false welding and false welding, reduce friction loss of wire insulation layer, and improve detection accuracy.
Smart Images
Figure CN223259853U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery performance testing, and in particular to a CCS electrical performance dynamic testing device. Background Art
[0002] In recent years, with the continuous upgrading of the new energy industry, the performance requirements for CCS have become increasingly stringent. Therefore, continuous optimization of CCS performance testing is required to improve the pass rate of CCS products. The current general testing method is to place the CCS on a test bench for electrical performance testing. However, in the CCS production process, each welding process cannot guarantee a 100% welding yield, and problems such as cold and false welds often occur. The electrical performance test of the CCS on a test bench is a static test, which cannot accurately and effectively detect cold and false welds. Therefore, it is necessary to develop a new detection device or method to solve this problem. Summary of the Invention
[0003] In order to effectively detect cold solder joints and false solder joints, the present application provides a CCS electrical performance dynamic testing device.
[0004] In the first aspect, the present application provides a CCS electrical performance dynamic testing device, which adopts the following technical solution:
[0005] A CCS electrical performance dynamic test device includes a test device body, which includes a workbench, a sample placement area is provided on one side of the workbench, a main body carrier is provided above the sample placement area, a piston vibrator is provided on the main body carrier, and a vibration carrier is fixedly installed on one end of the piston vibrator near the workbench, and a plurality of spring ejectors are installed on the vibration carrier; a plurality of first screws are fixed on the main body carrier, the first screws pass through the vibration carrier, and an end block is provided on one end of the first screws passing through the vibration carrier.
[0006] By adopting the above technical solution, when testing CCS samples, the piston vibrator drives the vibrating carrier plate to vibrate up and down, which in turn drives the spring pin to vibrate up and down. The spring pin transmits the amplitude to the CCS wire, causing the wire to float up and down. When a CCS wire weld has a poor weld, such as a cold joint or a false weld, the resistance value of each CCS wire loop will fluctuate significantly, thereby determining poor welding and effectively detecting cold and false welds. The provision of the first screw can limit the vibrating carrier plate, ensuring that the vibrating carrier plate continues to vibrate up and down along the first screw, reducing friction loss in the CCS wire insulation layer caused by lateral movement.
[0007] Preferably, a bearing sleeve is provided on the vibration carrier plate, and the first screw rod passes through the bearing sleeve.
[0008] By adopting the above technical solution, such an arrangement can reduce the wear of the first screw on the vibration carrier plate, thereby preventing the first screw from being laterally offset due to the wear of the vibration carrier plate.
[0009] Preferably, the first screw rod is sleeved with cylindrical springs on both sides of the vibration carrier plate.
[0010] By adopting the above technical solution, when the piston vibrator is not turned on, the cylindrical spring is in its original position. The provision of the cylindrical spring can better limit the vibration carrier plate and cushion the vibration of the vibration carrier plate, reducing the impact force of the vibration carrier plate on the end block.
[0011] Preferably, the first screw rod is provided with washers on both sides of the cylindrical spring.
[0012] By adopting the above technical solution, the gasket can play a buffering and protective role when the spring is compressed, and can reduce the extrusion wear of the cylindrical spring on the end block, the vibration carrier plate and the main body carrier plate when the cylindrical spring is compressed.
[0013] Preferably, the piston vibrator is fixedly connected to a second screw rod at one end close to the vibration carrier plate, and the second screw rod passes through the vibration carrier plate and is threadedly connected to a limit block at one end of the vibration carrier plate.
[0014] By adopting the above technical solution, the vibration carrier plate can be installed on the piston vibrator.
[0015] Preferably, a box is provided on the workbench, and an adjustment component for adjusting the height of the main body carrier is provided in the box.
[0016] By adopting the above technical solution, when the thickness of the sample to be tested is different or the vibrating parts are worn, the height of the vibrating carrier can be adjusted by adjusting the assembly, so as to enable better detection.
[0017] Preferably, the adjustment assembly includes a fixed plate arranged in the box body, a plurality of strip blocks are arranged on the fixed plate, a slider is slidably connected to the strip block, and a movable plate is fixedly connected to the slider; a plurality of strip holes are arranged on the box body, a plurality of mounting blocks extending out of the strip holes are arranged on the movable plate, and the side of the mounting block extending out of the strip holes is fixed to the main body carrier plate; a locking assembly for fixing the slider is provided on the fixed plate and the strip block.
[0018] By adopting the above technical solution, when the height of the main body carrier needs to be adjusted, the box body is opened, the bolts pressed against the slider are unscrewed, and then the mounting block is moved along the strip hole to the required height, and then the slider is fixed with the bolts.
[0019] Preferably, the locking assembly includes a row of threaded holes provided on the fixing plate and the strip-shaped hole, and is fixed by screwing one end of a bolt into the threaded hole and pressing against the slider.
[0020] By adopting the above technical solution, the slider is moved to the desired position, and then the bolts are tightened in the threaded holes at the corresponding positions so that the bolts are pressed against the slider, thereby fixing the slider.
[0021] Preferably, strip grooves are provided on both sides of the strip block, and the sliding block is provided with protrusions plugged into the strip grooves.
[0022] By adopting the above technical solution, when the slider moves up and down along the strip block, the protrusion slides along the strip groove. The arrangement of the protrusion and the strip groove can increase the contact area between the slider and the strip block, making it difficult for the slider to separate from the strip block.
[0023] Preferably, the spring ejector head is made of Teflon.
[0024] By adopting the above technical solution, the spring pin head is made of Teflon material, which has only a very small friction coefficient when in contact with the insulation layer of the wire, and will not cause damage to the insulation layer.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. When testing CCS samples, the piston vibrator drives the vibration carrier to vibrate up and down, and the vibration carrier drives the spring pin to vibrate up and down. The spring pin transmits the amplitude to the CCS wire, causing the wire to float up and down. When there are poor welding conditions such as cold joints and false joints at the welding points of the CCS wire, the resistance value of each CCS wire loop will fluctuate significantly, thereby judging poor welding and effectively detecting cold joints and false joints.
[0027] 2. When the height of the main carrier plate needs to be adjusted, open the box, unscrew the bolts that are pressed against the slider, move the mounting block along the strip hole to the required height, and then fix the slider with the bolts. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of a CCS electrical performance dynamic testing device according to an embodiment.
[0029] Figure 2 It is a structural schematic diagram of a through hole.
[0030] Figure 3 It is a structural diagram showing a vibration carrier plate.
[0031] Figure 4 It is a structural diagram showing the bearing sleeve.
[0032] Figure 5 It is a schematic diagram showing the structure of the second screw.
[0033] Figure 6 It is a structural diagram reflecting the adjustment component.
[0034] Figure 7 It is a structural diagram showing the strip grooves and the protrusions.
[0035] Explanation of the accompanying symbols: 1. Test device body; 11. Workbench; 2. Box; 21. Strip hole; 3. Sample placement area; 4. Main carrier plate; 41. Through hole; 42. Pipe joint; 43. Piston vibrator; 431. Second screw; 432. Limit block; 44. Copper foil strip; 45. First screw; 451. End block; 452. Cylindrical spring; 453. Gasket; 5. Vibration carrier plate; 51. Spring ejector pin; 52. Bearing sleeve; 6. Fixed plate; 61. Strip block; 611. Strip groove; 7. Slider; 71. Bump; 8. Moving plate; 9. Mounting block; 10. Threaded hole. DETAILED DESCRIPTION
[0036] The following is a further detailed description of this application in conjunction with the specific content. Example
[0037] A CCS electrical performance dynamic test device, such as Figure 1 and Figure 2 As shown, the test device comprises a main body 1, which includes a workbench 11. A box 2 is provided on one side of the workbench 11, and a sample placement area 3 is provided on the other side. A main body carrier 4 is mounted on the box 2. The main body carrier 4 has a pair of through-holes 41, each of which contains a pipe joint 42. A piston vibrator 43 is bolted to one side of the pipe joint 42. A vibration carrier 5 is fixedly mounted on the end of the piston vibrator 43 closest to the workbench 11. The vibration carrier 5 is equipped with several spring-loaded ejector pins 51. Copper foil strips 44 are fixed to each side of the main body carrier 4.
[0038] like Figure 2 and Figure 3 As shown, a plurality of first screws 45 are provided on one side of the main body carrier plate 4 close to the vibration carrier plate 5 . The first screws 45 pass through the vibration carrier plate 5 , and one end of the first screws 45 is threadedly connected to an end block 451 .
[0039] When testing a CCS sample, piston vibrator 43 drives the vibrating carrier plate 5 up and down, which in turn drives spring pins 51 up and down. Spring pins 51 transmit the vibration amplitude to the CCS wires, causing them to float up and down. If a CCS wire has a poor weld, such as a cold or false weld, the resistance of each CCS wire loop will fluctuate significantly, indicating a poor weld. The first screw 45 acts as a limiter for the vibrating carrier plate 5, ensuring it maintains its up and down vibration along the first screw 45, reducing frictional loss in the CCS wire insulation caused by lateral movement.
[0040] The head of the spring thimble 51 is made of Teflon. The head of the spring thimble 51 is made of Teflon, which has a very small friction coefficient when in contact with the insulation layer of the wire, and will not cause damage to the insulation layer.
[0041] like Figure 4 As shown, a bearing sleeve 52 is provided at the position where the vibration carrier plate 5 passes through the first screw rod 45, and the first screw rod 45 passes through the bearing sleeve 52. This arrangement can reduce the wear of the first screw rod 45 on the vibration carrier plate 5, thereby preventing the first screw rod 45 from being laterally offset due to the wear of the vibration carrier plate 5.
[0042] like Figure 2 As shown, the first screw 45 is sheathed with cylindrical springs 452 (illustrated in the figure) on either side of the vibration carrier plate 5. When the piston vibrator 43 is not activated, the cylindrical springs 452 are in their original position. The provision of the cylindrical springs 452 effectively limits the vibration carrier plate 5 and cushions the vibration of the vibration carrier plate 5, reducing the impact force exerted by the vibration carrier plate 5 on the end block 451.
[0043] like Figure 3 and Figure 4 As shown, the first screw rod 45 has washers 453 passing through each end of the cylindrical spring 452. The washers 453 can play a buffering and protective role when the spring is compressed, and can reduce the extrusion wear of the cylindrical spring 452 on the end block 451, the vibration carrier plate 5 and the main body carrier plate 4 when it is compressed.
[0044] like Figure 5 As shown, a second screw 431 is fixedly connected to one end of the piston vibrator 43 near the vibration carrier 5. The second screw 431 passes through the vibration carrier 5 and is threadedly connected to a limit block 432 at one end. By tightening the limit block 432, the vibration carrier 5 can be fixed to the piston vibrator 43.
[0045] like Figure 6As shown, the housing 2 is equipped with an adjustment assembly for adjusting the height of the main body carrier plate 4. The adjustment assembly includes a fixed plate 6 disposed within the housing 2. Two vertical strips 61 are fixed to the side of the fixed plate 6 proximal to the main body carrier plate 4. Sliders 7 are slidably connected to the strips 61. The side of the slides 7 facing away from the fixed plate 6 is fixedly connected to a movable plate 8. Several strip holes 21 are provided on the side of the housing 2 proximal to the main body carrier plate 4. Mounting blocks 9 are bolted to the side of the movable plate 8 proximal to the strip holes 21. The mounting blocks 9 extend through the strip holes 21 and are fixedly connected to the main body carrier plate 4 through the portion of the strip holes 21.
[0046] like Figure 7 As shown, the fixing plate 6 and the strip block 61 are provided with a locking assembly that secures the slider 7. The locking assembly includes a row of threaded holes 10 provided on the fixing plate 6 and the strip block 61. The slider 7 is moved to the desired position, and then bolts are tightened in the corresponding threaded holes 10, causing the bolts to abut against the slider 7, thereby securing the slider 7.
[0047] When the height of the main body carrier plate 4 needs to be adjusted, the box body 2 is opened, the bolts pressed against the slider 7 are unscrewed, and then the mounting block 9 is moved along the strip hole 21 to the required height, and then the slider 7 is fixed with the bolts.
[0048] like Figure 7 As shown, strip block 61 is provided with strip grooves 611 on both sides; correspondingly, slider 7 is provided with protrusions 71 that engage with strip grooves 611. As slider 7 moves up and down along strip block 61, protrusions 71 slide along strip grooves 611. The provision of protrusions 71 and strip grooves 611 increases the contact area between slider 7 and strip block 61, making it difficult for slider 7 to separate from strip block 61.
[0049] The working principle of the CCS electrical performance dynamic testing device of this embodiment is as follows: when testing a CCS sample, the piston vibrator 43 drives the vibration carrier 5 to vibrate up and down, and the vibration carrier 5 drives the spring thimble 51 to vibrate up and down. The spring thimble 51 transmits the amplitude to the CCS wire, causing the wire to float up and down. When there are poor welding conditions such as cold joints or false welds at the welding points of the CCS wire, the resistance value of each CCS wire loop will fluctuate significantly, thereby judging the poor welding.
[0050] When the height of the spring ejector pin 51 needs to be adjusted, the box body 2 is opened, the bolts pressed against the slider 7 are unscrewed, and then the mounting block 9 is moved along the strip hole 21 to the required height, and then the slider 7 is fixed with the bolts.
[0051] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A CCS electrical performance dynamic test device, characterized by: The test device comprises a test device body (1), the test device body (1) comprises a workbench (11), a sample placement area (3) is provided on one side of the workbench (11), a main body carrier (4) is provided above the sample placement area (3), a piston vibrator (43) is provided on the main body carrier (4), a vibration carrier (5) is fixedly installed at one end of the piston vibrator (43) close to the workbench (11), and a plurality of spring ejector pins (51) are installed on the vibration carrier (5); a plurality of first screw rods (45) are fixed on the main body carrier (4), the first screw rods (45) pass through the vibration carrier (5), and an end block (451) is provided at one end of the vibration carrier (5).
2. A CCS electrical performance dynamic testing device according to claim 1, characterized in that: A bearing sleeve (52) is provided on the vibration carrier plate (5), and the first screw rod (45) passes through the bearing sleeve (52).
3. A CCS electrical performance dynamic testing device according to claim 2, characterized in that: The first screw rod (45) is sleeved with cylindrical springs (452) on both sides of the vibration carrier plate (5).
4. A CCS electrical performance dynamic testing device according to claim 3, characterized in that: The first screw rod (45) is provided with washers (453) on both sides of the cylindrical spring (452).
5. A CCS electrical performance dynamic testing device according to claim 1, characterized in that: The piston vibrator (43) is fixedly connected to a second screw rod (431) at one end close to the vibration carrier plate (5); the second screw rod (431) passes through the vibration carrier plate (5) and is threadedly connected to a limit block (432) at one end of the vibration carrier plate (5).
6. A CCS electrical performance dynamic testing device according to claim 1, characterized in that: A box body (2) is provided on the workbench (11), and an adjustment component for adjusting the height of the main body carrier plate (4) is provided in the box body (2).
7. A CCS electrical performance dynamic testing device according to claim 6, characterized in that: The adjustment assembly comprises a fixed plate (6) arranged in the box body (2), a plurality of strip blocks (61) are arranged on the fixed plate (6), a slider (7) is slidably connected to the strip block (61), and a movable plate (8) is fixedly connected to the slider (7); a plurality of strip holes (21) are arranged on the box body (2), a plurality of mounting blocks (9) extending out of the strip holes (21) are arranged on the movable plate (8), and a side of the mounting block (9) extending out of the strip hole (21) is fixed to the main body carrier plate (4); and a locking assembly for fixing the slider (7) is provided on the fixed plate (6) and the strip block (61).
8. A CCS electrical performance dynamic testing device according to claim 7, characterized in that: The locking assembly comprises a row of threaded holes (10) arranged on the fixing plate (6) and the strip-shaped hole (21), and is fixed by screwing one end of a bolt into the threaded hole (10) and pressing against the slider (7).
9. A CCS electrical performance dynamic testing device according to claim 7, characterized in that: The strip block (61) is provided with strip grooves (611) on both sides, and the slider (7) is provided with protrusions (71) plugged into the strip grooves.
10. The CCS electrical performance dynamic testing device according to claim 1, characterized in that: The head of the spring ejector pin (51) is made of Teflon material.