A Film Capacitor Core Empowering Device and Process for Electric Vehicles

Abstract

The present invention discloses a film capacitor core energizing device and process for electric vehicles, which relates to the technical field of capacitor energizing devices. A film capacitor core energizing device for electric vehicles includes a bearing plate; when the capacitor is clamped by the first clamping arm and the second clamping arm, the side wall blocks are relied on to assist in clamping both sides of the capacitor, and a lateral impact is realized on the winding film of the capacitor quickly. While effectively increasing the contact area between the capacitor and the electrode plate on the second side wall, the impact resistance performance of the capacitor is detected. At the same time, the bottom of the capacitor can also be supported by the L-shaped plate on the side wall block to prevent the head from collapsing, effectively increasing the contact area between the capacitor and the electrode plate on the second side wall, and ensuring the normal progress of the energizing operation; in addition, when the capacitor is clamped by the mechanical claw assembly, the L-shaped plate can also be driven to reciprocate again to perform an impact resistance test on the side of the capacitor, effectively improving the performance of the capacitor.

Description

Technical Field

[0001] The present invention belongs to the technical field of capacitor energizing devices, and more specifically, relates to a film capacitor core energizing device for electric vehicles. Background Art

[0002] A capacitor is a device that can store electric charge. It is widely used in a large amount in electronic components of electric vehicles and can also be used as a DC-blocking and AC-passing, coupling, bypassing, filtering, tuning circuit, energy conversion, control, etc. in the circuits of other devices;

[0003] A capacitor is formed by winding a capacitor through a winding machine so that there is an isolation film between two capacitors, and then spraying gold on the capacitor. Capacitor energizing is carried out through pre-energizing (Max 250Vac, synchronous scanning gun scanning), impulse current aging (Max 120Hz, Max 2kVdc - 20kA), DC high-voltage energizing (Max 3kVdc - 1A) + self-healing parameter test (n - △u), insulation resistance test (Max 1kVdc - 100GΩ), capacitance loss measurement (TH2830 + test fixture) and other energizing processes; among them, impulse current aging refers to the process of aging and testing electrical equipment or components using a rapidly changing large current (i.e., impulse current). This large current rapidly increases and reaches a peak value in a short time, and then rapidly decreases to zero or close to zero in an extremely short time; therefore, capacitor energizing requires corresponding equipment to complete the operation of multiple energizing processing processes for capacitors;

[0004] The existing equipment continuously clamps capacitors and performs energizing process operations one by one. When the fixture on the existing equipment clamps a capacitor, it usually uses the flexible electrode on the fixture to clamp one end of the capacitor to achieve the on-off between the flexible electrode and the capacitor during energizing. This may cause the capacitor to skew when being clamped by the fixture, resulting in a reduction in the contact area between the flexible electrode and the capacitor or the generation of gaps, leading to errors in the energizing process. In addition, due to the reduction in the clamping area of the capacitor by the fixture, the capacitor may sag under the action of gravity, resulting in the inability of the subsequent manipulator to grasp it, or a collision between the manipulator and the capacitor, triggering a safety accident. For this reason, our company has proposed a film capacitor core energizing device for electric vehicles. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a film capacitor core energizing device for electric vehicles that can overcome or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A film capacitor core energizing device for an electric vehicle, including a carrier plate, further including: a plurality of groups of first clamping arms and second clamping arms that are circumferentially arranged on the carrier plate and move relative to each other, and the first clamping arms and the second clamping arms are used to clamp the capacitor; electrode plates, which are respectively arranged on the first clamping arms and the second clamping arms, and are used to contact the capacitor when the first clamping arms and the second clamping arms clamp the capacitor; side wall blocks, which are respectively arranged on the first clamping arms and the second clamping arms, and the two side wall blocks are in a relative state. When the first clamping arms and the second clamping arms move away from each other, the two side wall blocks move along with the first clamping arms and the second clamping arms. When the first clamping arms and the second clamping arms approach each other, the two side wall blocks do not move along with the first clamping arms and the second clamping arms. When the first clamping arms and the second clamping arms clamp the capacitor, the two side wall blocks quickly approach both sides of the clamped capacitor, and while clamping the capacitor, test the impact resistance of the winding of the capacitor in the horizontal direction.

[0007] Preferably, a plurality of bottom plates are circumferentially installed on the carrier plate, side plates are installed on both sides of each bottom plate, an upper cover plate is installed on the two side plates, a guide rod is installed between the two side plates, the first clamping arms and the second clamping arms are both slidably connected to the guide rod, and the first clamping arms and the second clamping arms are connected to each other by a tension spring.

[0008] Preferably, a first rack and a second rack are respectively fixedly connected to the first clamping arm and the second clamping arm, a connecting shaft is rotatably connected between the bottom plate and the upper cover plate, a gear is fixedly connected to the connecting shaft, the gear is located between the first rack and the second rack, a connecting arm is fixedly connected to the connecting shaft, and a guide wheel is rotatably connected to the end of the connecting arm away from the connecting shaft. When the guide wheel is pushed to rotate the connecting shaft, the gear meshes with the first rack and the second rack respectively to drive the first clamping arm and the second clamping arm to move away from each other.

[0009] Preferably, a first side wall, a second side wall, and a third side wall are respectively arranged on the first clamping arm and the second clamping arm, and the electrode plate is arranged on the second side wall; a first guide rod is symmetrically and slidably connected to the third side wall, one end of the first guide rod is fixedly connected to the side wall block, the side wall block is connected to the third side wall by a first spring, and the other end of the first guide rod is fixedly connected to a round block; connecting plates are installed on both side plates, and elastic clips are symmetrically installed on the connecting plates. When the first clamping arm and the second clamping arm drive the first guide rods to move away from each other respectively, the round blocks on the first guide rods enter the elastic clips, and the elastic clips hold the first guide rods. When the first clamping arm and the second clamping arm approach each other and clamp the capacitor, the first guide rods break free from the elastic clips and quickly clamp the capacitor.

[0010] Preferably, the elastic clip includes a bottom block, an arc-shaped hook, and an open hook. The arc-shaped hook and the open hook are integrally formed and circumferentially installed on the bottom block, and the open hook is in an open shape.

[0011] Furthermore, it further includes a mechanical gripper assembly for gripping and transferring the capacitors on the first clamping arm and the second clamping arm. The mechanical gripper assembly includes an electric slide table. A connecting frame is installed on the slide seat of the electric slide table. A first cylinder is installed on the connecting frame. A clamping space for the capacitors is formed between the first cylinder and the bearing plate on the connecting frame. The mechanical gripper assembly further includes a base plate. A rotating shaft is installed on the base plate. Second cylinders are symmetrically installed on the base plate. A mounting plate is installed on the second cylinders. A double-headed cylinder is installed on the mounting plate. Arm rods are fixedly connected to both telescopic ends on both sides of the double-headed cylinder.

[0012] Furthermore, a plurality of grooves are formed on the opposite surfaces of the two side wall blocks. An L-shaped plate is slidably connected in the grooves. A connecting frame is fixedly connected to the side wall block. A plurality of groups of second guide rods are slidably connected to the connecting frame. One end of the second guide rod penetrates into the groove and is fixedly connected to the L-shaped plate. A fixing block is fixedly connected to the outer periphery of the second guide rod. A second spring is connected between the fixing block and the connecting frame. When the connecting frame approaches the capacitors on the first clamping arm and the second clamping arm, the multiple L-shaped plates on both sides of the capacitor repeatedly impact both sides of the capacitor in small areas for multiple times to test the anti-impact performance of the winding of the capacitor in the horizontal direction.

[0013] Preferably, triangular bumps are respectively arranged on both sides of the bearing plate on the connecting frame, and the triangular bumps correspond to the L-shaped plates.

[0014] Preferably, an installation plate is arranged above the bearing disc. A plurality of second electrodes are arranged on the installation plate. A plurality of first electrodes electrically connected to the electrode sheets are installed on the bearing disc. When the installation plate moves downward, the second electrodes are electrically connected to the first electrodes.

[0015] A process for energizing the core of a film capacitor for an electric vehicle includes the following steps:

[0016] S1. The capacitor is loaded from the loading station and clamped on the bearing disc by the first clamping arm and the second clamping arm;

[0017] S2. Through the intermittent rotation of the bearing disc, AC low-voltage pre-energization, short-circuit discharge, C1-D1 measurement, surge current aging, DC high-voltage energization, current-limiting discharge, insulation resistance pre-charging, insulation resistance testing, current-limiting discharge, short-circuit discharge, defective product rejection, mechanical gripper assembly material taking, and conveyor belt output of materials are carried out.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: When the present invention clamps the capacitor through the first clamping arm and the second clamping arm, it relies on the side wall blocks to assist in clamping both sides of the capacitor, and realizes a rapid lateral relative impact on the winding film of the capacitor. While effectively increasing the contact area between the capacitor and the electrode sheet on the second side wall, the impact resistance performance of the capacitor is detected. At the same time, when the side wall blocks assist in clamping the capacitor, they can also support the bottom of the capacitor through the L-shaped plates on the side wall blocks to prevent the head from collapsing, effectively increasing the contact area between the capacitor and the electrode sheet on the second side wall, and ensuring the normal progress of the energization operation;

[0019] In addition, when clamping the capacitor through the mechanical claw assembly, it can also drive the L-shaped plate to reciprocate again to conduct an impact resistance test on the side of the capacitor, effectively improving the performance of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the drawings:

[0021] Figure 1 is a schematic structural diagram of the bearing cabinet of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0022] Figure 2 is a schematic structural diagram of the bearing plate of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0023] Figure 3 is a film capacitor core energizing device for electric vehicles proposed by the present invention Figure 2 schematic diagram of the structure at A in;

[0024] Figure 4 is a top view of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0025] Figure 5 is a schematic structural diagram of the first electrode and the second electrode of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0026] Figure 6 is a schematic structural diagram of the second cylinder and the arm rod of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0027] Figure 7 is a schematic structural diagram of the bearing plate and the connecting frame of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0028] Figure 8 is a schematic structural diagram of the triangular bump of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0029] Figure 9 Schematic structural diagram of the tension spring of an energizing device for the capacitor core of a thin-film capacitor for electric vehicles proposed by the present invention;

[0030] Figure 10 Schematic structural diagram of the first clamping arm and the second clamping arm of an energizing device for the capacitor core of a thin-film capacitor for electric vehicles proposed by the present invention;

[0031] Figure 11 An energizing device for the capacitor core of a thin-film capacitor for electric vehicles proposed by the present invention Figure 10 Schematic structural diagram of the position B in

[0032] Figure 12 Schematic structural diagram of the elastic clamp and the L-shaped plate of an energizing device for the capacitor core of a thin-film capacitor for electric vehicles proposed by the present invention.

[0033] In the figure: 1, bearing cabinet; 11, mounting panel; 12, pushing cylinder; 2, bearing plate; 20, capacitor; 21, bottom plate; 22, side plate; 23, upper cover plate; 24, guide rod; 25, first clamping arm; 251, first side wall; 252, second side wall; 253, third side wall; 254, electrode plate; 255, tension spring; 256, first rack; 26, second clamping arm; 261, second rack; 27, gear; 271, connecting shaft; 272, connecting arm; 273, guide wheel; 28, side wall block; 281, first guide rod; 282, first spring; 283, connecting plate; 284, elastic clamp; 2840, bottom block; 2841, arc-shaped hook; 2842, open hook; 285, round block; 29, L-shaped plate; 290, fixed block; 291, groove; 292, connecting frame; 293, second guide rod; 294, second spring; 3, electric sliding table; 31, sliding seat; 32, connecting frame; 321, bearing plate; 322, triangular convex block; 33, first cylinder; 4, base plate; 41, second cylinder; 42, mounting plate; 43, double-headed cylinder; 44, arm rod; 45, rotating shaft; 5, mounting disc; 51, first electrode; 52, second electrode; 6, conveyor belt; 7, loading station. Specific embodiments

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0035] Example 1: Refer to Figures 1 - 12, A film capacitor core energizing device for an electric vehicle, including a bearing cabinet 1, the bearing cabinet 1 is used to provide facilities for the installation of the following structures, and also includes a bearing plate 2 installed on the installation panel 11 in the bearing cabinet 1, and further includes: a plurality of groups of relatively moving first clamping arms 25 and second clamping arms 26 arranged circumferentially on the bearing plate 2, the first clamping arms 25 and the second clamping arms 26 are used to clamp the capacitor 20; electrode plates 254 are respectively arranged on the first clamping arms 25 and the second clamping arms 26, and are used to contact the capacitor 20 when the first clamping arms 25 and the second clamping arms 26 clamp the capacitor 20; side wall blocks 28 are respectively arranged on the first clamping arms 25 and the second clamping arms 26, and the two side wall blocks 28 are in a relative state. When the first clamping arms 25 and the second clamping arms 26 move away from each other, the two side wall blocks 28 move with the first clamping arms 25 and the second clamping arms 26. When the first clamping arms 25 and the second clamping arms 26 approach each other, the two side wall blocks 28 do not move with the first clamping arms 25 and the second clamping arms 26. When the first clamping arms 25 and the second clamping arms 26 clamp the capacitor 20, the two side wall blocks 28 quickly approach both sides of the clamped capacitor 20, and while clamping the capacitor 20, test the impact resistance of the winding of the capacitor 20 in the horizontal direction;

[0036] A plurality of bottom plates 21 are circumferentially installed on the bearing plate 2. Side plates 22 are installed on both sides of the bottom plates 21. An upper cover plate 23 is installed on the two side plates 22. A guide rod 24 is installed between the two side plates 22. The first clamping arms 25 and the second clamping arms 26 are both slidably connected to the guide rod 24. The first clamping arms 25 and the second clamping arms 26 are connected to each other by a tension spring 255;

[0037] First racks 256 and second racks 261 are respectively fixedly connected to the first clamping arms 25 and the second clamping arms 26. A connecting shaft 271 is rotatably connected between the bottom plate 21 and the upper cover plate 23. A gear 27 is fixedly connected to the connecting shaft 271. The gear 27 is located between the first rack 256 and the second rack 261. A connecting arm 272 is fixedly connected to the connecting shaft 271. A guide wheel 273 is rotatably connected to the end of the connecting arm 272 far from the connecting shaft 271. When the guide wheel 273 is pushed to rotate the connecting shaft 271, the gear 27 meshes with the first rack 256 and the second rack 261 respectively to drive the first clamping arms 25 and the second clamping arms 26 to move away from each other;

[0038] The first clamping arm 25 and the second clamping arm 26 are respectively provided with a first side wall 251, a second side wall 252, and a third side wall 253. The electrode plate 254 is arranged on the second side wall 252; a first guide rod 281 is symmetrically and slidably connected to the third side wall 253. One end of the first guide rod 281 is fixedly connected to the side wall block 28, and the side wall block 28 is connected to the third side wall 253 through a first spring 282. The other end of the first guide rod 281 is fixedly connected with a round block 285; connecting plates 283 are installed on both side plates 22, and elastic clips 284 are symmetrically installed on the connecting plates 283. When the first clamping arm 25 and the second clamping arm 26 drive the first guide rods 281 to move away from each other respectively, the round block 285 on the first guide rod 281 enters into the elastic clip 284, and the elastic clip 284 pulls the first guide rod 281. When the first clamping arm 25 and the second clamping arm 26 approach each other and clamp the capacitor 20, the first guide rod 281 breaks free from the elastic clip 284 and quickly clamps the capacitor 20;

[0039] The elastic clip 284 includes a bottom block 2840, an arc-shaped hook 2841, and an open hook 2842. The arc-shaped hook 2841 and the open hook 2842 are integrally formed and circumferentially installed on the bottom block 2840, and the open hook 2842 is in an open shape;

[0040] It further includes a mechanical claw assembly for clamping and transferring the capacitor 20 on the first clamping arm 25 and the second clamping arm 26. The mechanical claw assembly includes an electric sliding table 3. A connecting frame 32 is installed on the sliding seat 31 of the electric sliding table 3. A first air cylinder 33 is installed on the connecting frame 32, and a clamping space for the capacitor 20 is formed between the first air cylinder 33 and the bearing plate 321 on the connecting frame 32; the mechanical claw assembly further includes a base plate 4. A rotating shaft 45 is installed on the base plate 4. Second air cylinders 41 are symmetrically installed on the base plate 4. A mounting plate 42 is installed on the second air cylinder 41. A double-headed air cylinder 43 is installed on the mounting plate 42. Arm rods 44 are fixedly connected to the telescopic ends on both sides of the double-headed air cylinder 43;

[0041] A plurality of grooves 291 are formed on the opposite surfaces of the two side wall blocks 28. An L-shaped plate 29 is slidably connected in the grooves 291. A connecting frame 292 is fixedly connected to the side wall block 28. A plurality of groups of second guide rods 293 are slidably connected to the connecting frame 292. One end of the second guide rod 293 penetrates into the groove 291 and is fixedly connected to the L-shaped plate 29. A fixing block 290 is fixedly connected to the outer periphery of the second guide rod 293. The fixing block 290 is connected to the connecting frame 292 through a second spring 294. When the connecting frame 32 approaches the capacitor 20 on the first clamping arm 25 and the second clamping arm 26, the plurality of L-shaped plates 29 located on both sides of the capacitor 20 repeatedly impact both sides of the capacitor 20 in a small area for multiple times to test the anti-impact performance of the winding of the capacitor 20 in the horizontal direction;

[0042] On both sides of the bearing plate 321 on the connecting frame 32, triangular bumps 322 are respectively arranged, and the triangular bumps 322 correspond to the L-shaped plate 29;

[0043] Above the bearing disc 2, an installation disc 5 is provided. On the installation disc 5, a plurality of second electrodes 52 are provided. On the bearing disc 2, a plurality of first electrodes 51 respectively electrically connected to the electrode pieces 254 are installed. When the installation disc 5 moves downward, the second electrodes 52 are electrically connected to the first electrodes 51;

[0044] The number of the first electrodes 51 is the same as the number of multiple groups of first clamping arms 25 and second clamping arms 26. The first electrodes 51 are connected to the electrode pieces 254 on the first clamping arms 25 and second clamping arms 26 through wires. The number of the second electrodes 52 is less than that of the first electrodes 51. The number of the second electrodes 52 can be set according to the actual production situation. The reason why the number of the second electrodes 52 is less than that of the first electrodes 51 is to set a defective product rejection station. Therefore, there is no need to energize the first electrodes 51 and the second electrodes 52 anymore;

[0045] When the device is in use, the bearing disc 2 is driven by a motor to rotate once to a certain angle (this angle is determined by the number of the first clamping arms 25 and second clamping arms 26. For example, if there are 16 groups of first clamping arms 25 and second clamping arms 26, that is, the single rotation angle of the bearing disc 2 is 22.5 degrees). At the feeding station 7, the capacitor 20 is clamped on the first clamping arms 25 and second clamping arms 26 through a feeding device, and the bearing disc 2 drives the capacitor 20 to pass through each test station composed of the second electrodes 52 for the energization process operation. When the bearing disc 2 rotates once, the installation disc 5 will move downward, so that the second electrodes 52 are electrically connected to the first electrodes 51. Through the contact between the electrode pieces 254 and the capacitor 20, the energization process operation is realized.

[0046] When clamping the capacitor 20 at the feeding station 7, one end of the pushing cylinder 12 at the feeding station 7 pushes the guide wheel 273 (it should be understood that the pushing cylinder 12 at the feeding station 7 is installed in the bearing cabinet 1 through a bracket and is not installed on the bearing disc 2. Therefore, all the arranged pushing cylinders 12 will not rotate with the bearing disc 2), so that the connecting shaft 271 drives the gear 27 to rotate. The gear 27 meshes with the first rack 256 and the second rack 261 respectively, so that the first clamping arms 25 and the second clamping arms 26 move away from each other. During the moving-away process, the space between the second side walls 252 increases, and the first guide rod 281 moves together with the first clamping arms 25 and the second clamping arms 26. Subsequently, the guide rod capacitor 20 is located between the second side walls 252. The pushing cylinder 12 at the feeding station 7 retracts, and the first clamping arms 25 and the second clamping arms 26 approach each other under the pulling of the tension spring 255, realizing the clamping of the capacitor 20.

[0047] During the process of the first clamping arm 25 and the second clamping arm 26 moving away from each other, the round block 285 at the end of the first guide rod 281 will enter the arc-shaped hook 2841 from the opening hook 2842 of the elastic clip 284, and the round block 285 will be restricted in the arc-shaped hook 2841 by the narrow part between the arc-shaped hook 2841 and the opening hook 2842. During the process of the first clamping arm 25 and the second clamping arm 26 moving closer to each other, since the first guide rod 281 is clamped by the elastic clip 284 through the round block 285, the side wall block 28 at one end of the first guide rod 281 will not displace. When the first clamping arm 25 and the second clamping arm 26 move closer to each other, the third side wall 253 will exert a squeezing force on the first spring 282 to store energy. When the first clamping arm 25 and the second clamping arm 26 move closer to clamp the capacitor 20, a thrust is generated on the first spring 282, which is greater than the clamping force of the elastic clip 284. Therefore, the round block 285 will escape from the elastic clip 284, and the side wall block 28 will quickly approach both sides of the capacitor 20 away from the second side wall 252 under the thrust force stored in the first spring 282, clamp both sides of the capacitor 20 away from the second side wall 252, and generate an impact on both sides of the capacitor 20. Since the capacitor 20 is a flat cylinder formed by winding and extrusion, and the winding film of the capacitor 20 is horizontal with the first clamping arm 25 and the second clamping arm 26, the side wall block 28 quickly performs a lateral relative impact on the winding film of the capacitor 20 from both sides, which can effectively detect the impact resistance performance of the capacitor 20, and thus effectively improve the working performance and safety of the capacitor 20.

[0048] When the side wall block 28 clamps the capacitor 20, a part of the L-shaped plate 29 will be located at the bottom of the capacitor 20, which can effectively support the bottom of the capacitor 20, prevent the capacitor 20 from collapsing, and effectively increase the contact area between the capacitor 20 and the electrode plate 254 on the second side wall 252.

[0049] When the clamped capacitor 20 is moved to the electric sliding table 3, the sliding seat 31 drives the connecting frame 32 to approach the capacitor 20, so that the bearing plate 321 on the connecting frame 32 is located below the capacitor 20, and the clamping end of the first air cylinder 33 is located above the capacitor 20. Subsequently, the first air cylinder 33 moves downward to clamp the capacitor 20;

[0050] After clamping, the adjacent pushing air cylinder 12 pushes the guide wheel 273 at the position of the capacitor 20 clamped by the first air cylinder 33 and the bearing plate 321, so that the first clamping arm 25 and the second clamping arm 26 move away from each other, loosen the clamping of the capacitor 20, and then the sliding seat 31 returns to remove the capacitor 20 from the first clamping arm 25 and the second clamping arm 26;

[0051] Next, the second cylinder 41 pushes the lever 44 upward to approach both sides of the vertically clamped capacitor 20. The telescopic end of the double-headed cylinder 43 retracts, and the lever 44 clamps both sides of the capacitor 20 again. Subsequently, the first cylinder 33 retracts to release the clamping of the capacitor 20. Then, the slide 31 moves a set stroke towards the second cylinder 41, causing the capacitor 20 clamped by the lever 44 to leave the carrier plate 321. Next, the second cylinder 41 retracts to drive the capacitor 20 downward. Subsequently, the rotating shaft 45 rotates a certain angle, making the lever 44 perpendicular to the conveyor belt 6. The lever 44 releases the capacitor 20, and the capacitor 20 falls onto the conveyor belt 6, completing the energization operation of the capacitor 20.

[0052] It should be understood that the rotating shaft 45 is driven to rotate by a motor, or can also be driven by other mechanisms, devices, structures, and components that can make the rotating shaft 45 rotate forward and backward;

[0053] Furthermore, on the surface of the lever 44 in contact with the capacitor 20, electrode probes are provided. When the lever 44 clamps both sides of the capacitor 20, the electrode probes can be used to perform the energization process operation on the capacitor 20, which can effectively improve the efficiency of the energization process operation of the capacitor 20 by making use of each link;

[0054] When the connecting frame 32 removes the capacitors 20 on the first clamping arm 25 and the second clamping arm 26, when the carrier plate 321 on the connecting frame 32 approaches below the capacitor 20, the triangular bump 322 on the carrier plate 321 will reciprocally push the L-shaped plate 29 to slide in the groove 291. When the triangular bump 322 is not in contact with the L-shaped plate 29, the L-shaped plate 29 will be pushed by the second spring 294 to impact both sides of the capacitor 20 again. Thus, when removing the capacitor 20, the impact resistance test of the capacitor 20 can be carried out again. Moreover, the impact of the L-shaped plate 29 on the side of the capacitor 20, compared with the impact of the side wall block 28 on the side of the capacitor 20, is manifested as small-area and multiple impacts. That is, the contact area between the L-shaped plate 29 and the side of the capacitor 20 is smaller than the contact area between the side wall block 28 and the capacitor 20. After the side wall block 28 impacts the capacitor 20 over a large area, it is then transformed into small-area and multiple impacts by the L-shaped plate 29. This can further improve the test method for the impact resistance test performance of the wound film of the capacitor 20, making the impact resistance test results more accurate.

[0055] The detection of the impact resistance test can be carried out by recording the parameters of the capacitor 20 when the capacitor 20 is located on the carrier plate 2 and the capacitor 20 is energized by the first electrode 51 and the second electrode 52. Then, when the first electrode 51 is in electrical connection with other second electrodes 52, the capacitor 20 is detected, and the change of the parameters is compared. When it is unqualified, before the capacitor 20 reaches the electric sliding table 3 or after passing over the electric sliding table 3, the corresponding pushing cylinder 12 extends, so that the capacitor 20 is separated from the first clamping arm 25 and the second clamping arm 26, and the unqualified capacitor 20 is removed;

[0056] For the qualified capacitor 20, when it is clamped by the first cylinder 33, the impact resistance test can be carried out again, and when it is clamped by the arm rod 44, the detection is carried out again, further improving the performance detection of the capacitor 20.

[0057] Example 2: Refer to Figures 1 - 12 , a process for energizing the core of a film capacitor for an electric vehicle, comprising the following steps:

[0058] S1. The capacitor 20 is loaded from the loading station 7 and clamped on the carrier plate 2 by the first clamping arm 25 and the second clamping arm 26;

[0059] S2. After the intermittent rotation of the carrier plate 2, AC low-voltage pre-energization, short-circuit discharge, C1-D1 measurement, impact current aging, DC high-voltage energization, current-limiting discharge, insulation resistance pre-charging, insulation resistance testing, current-limiting discharge, short-circuit discharge, defective product removal, mechanical gripper assembly material taking, and conveyor belt 6 output material are carried out.

[0060] When the present invention clamps the capacitor 20 by the first clamping arm 25 and the second clamping arm 26, the two sides of the capacitor 20 are assisted to be clamped by the side wall blocks 28, and the winding film of the capacitor 20 is quickly subjected to a lateral relative impact. While effectively increasing the contact area between the capacitor 20 and the electrode plate 254 on the second side wall 252, the impact resistance performance of the capacitor 20 is detected. At the same time, when the side wall blocks 28 assist in clamping the capacitor 20, the bottom of the capacitor 20 can also be supported by the L-shaped plates 29 on the side wall blocks 28 to prevent the head from collapsing, effectively increasing the contact area between the capacitor 20 and the electrode plate 254 on the second side wall 252, and ensuring the normal progress of the energization operation;

[0061] In addition, when the capacitor 20 is clamped by the mechanical gripper assembly, the L-shaped plates 29 can be driven to reciprocate again to perform an impact resistance test on the side of the capacitor 20, effectively improving the performance of the capacitor 20.

[0062] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention can make some changes or modifications to equivalent embodiments with equivalent changes by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A film capacitor core energizing device for an electric vehicle, comprising a carrier plate (2), characterized in that, Further included are: Multiple groups of first clamping arms (25) and second clamping arms (26) that are circumferentially arranged on the carrier plate (2) and perform relative movement, and the first clamping arms (25) and the second clamping arms (26) are used to clamp the capacitor (20); Electrode plates (254) are respectively arranged on the first clamping arms (25) and the second clamping arms (26), and after the first clamping arms (25) and the second clamping arms (26) clamp the capacitor (20), the electrode plates (254) are in contact with the capacitor (20); Side wall blocks (28) are respectively arranged on the first clamping arms (25) and the second clamping arms (26), and the two side wall blocks (28) are in a relative state. When the first clamping arms (25) and the second clamping arms (26) move away from each other, the two side wall blocks (28) move following the first clamping arms (25) and the second clamping arms (26). When the first clamping arms (25) and the second clamping arms (26) approach each other, the two side wall blocks (28) do not move following the first clamping arms (25) and the second clamping arms (26). When the first clamping arms (25) and the second clamping arms (26) clamp the capacitor (20), the two side wall blocks (28) quickly approach both sides of the clamped capacitor (20). While clamping the capacitor (20), the anti-impact performance of the winding of the capacitor (20) in the horizontal direction is tested.

2. The core energizing device for a thin film capacitor used in an electric vehicle according to claim 1, characterized in that, A plurality of bottom plates (21) are circumferentially installed on the carrier plate (2). Side plates (22) are installed on both sides of the bottom plates (21). An upper cover plate (23) is installed on the two side plates (22). A guide rod (24) is installed between the two side plates (22). The first clamping arms (25) and the second clamping arms (26) are both slidably connected to the guide rod (24). The first clamping arms (25) and the second clamping arms (26) are connected to each other by a tension spring (255).

3. The film capacitor core energizing device for an electric vehicle according to claim 2, characterized in that, First racks (256) and second racks (261) are respectively fixedly connected to the first clamping arms (25) and the second clamping arms (26). A connecting shaft (271) is rotatably connected between the bottom plate (21) and the upper cover plate (23). A gear (27) is fixedly connected to the connecting shaft (271). The gear (27) is located between the first rack (256) and the second rack (261). A connecting arm (272) is fixedly connected to the connecting shaft (271). A guide wheel (273) is rotatably connected to one end of the connecting arm (272) away from the connecting shaft (271). When the guide wheel (273) is pushed to rotate the connecting shaft (271), the gear (27) meshes with the first rack (256) and the second rack (261) respectively to drive the first clamping arms (25) and the second clamping arms (26) to move away from each other.

4. The core energizing device for a thin film capacitor used in an electric vehicle according to claim 3, characterized in that, First side walls (251), second side walls (252), and third side walls (253) are respectively arranged on the first clamping arms (25) and the second clamping arms (26), and the electrode plates (254) are arranged on the second side walls (252); A first guide rod (281) is symmetrically and slidably connected to the third side wall (253). One end of the first guide rod (281) is fixedly connected to a side wall block (28). The side wall block (28) is connected to the third side wall (253) by a first spring (282). The other end of the first guide rod (281) is fixedly connected to a round block (285). Connecting plates (283) are installed on both of the two side plates (22). Elastic clips (284) are symmetrically installed on the connecting plates (283). When the first clamping arm (25) and the second clamping arm (26) drive the first guide rods (281) to move away from each other respectively, the round blocks (285) on the first guide rods (281) enter into the elastic clips (284), and the elastic clips (284) hold the first guide rods (281). When the first clamping arm (25) and the second clamping arm (26) approach each other and clamp the capacitor (20), the first guide rods (281) break free from the elastic clips (284) and quickly clamp the capacitor (20).

5. The core energizing device for a thin film capacitor used in an electric vehicle according to claim 4, characterized in that, The elastic clip (284) includes a bottom block (2840), an arc-shaped hook (2841), and an open hook (2842). The arc-shaped hook (2841) and the open hook (2842) are integrally formed and circumferentially installed on the bottom block (2840). The open hook (2842) is in an open shape.

6. The core energizing device for thin film capacitors used in electric vehicles according to claim 4, characterized in that It further includes a mechanical claw assembly for clamping and transferring the capacitor (20) on the first clamping arm (25) and the second clamping arm (26). The mechanical claw assembly includes an electric slide table (3). A connecting frame (32) is installed on the slide seat (31) of the electric slide table (3). A first air cylinder (33) is installed on the connecting frame (32). A clamping space for the capacitor (20) is formed between the first air cylinder (33) and a bearing plate (321) on the connecting frame (32). The mechanical claw assembly further includes a base plate (4). A rotating shaft (45) is installed on the base plate (4). Second air cylinders (41) are symmetrically installed on the base plate (4). A mounting plate (42) is installed on the second air cylinders (41). A double-headed air cylinder (43) is installed on the mounting plate (42). Arm rods (44) are fixedly connected to the telescopic ends on both sides of the double-headed air cylinder (43).

7. The core energizing device for the film capacitor of an electric vehicle according to claim 6, characterized in that, A plurality of grooves (291) are formed on the opposite surfaces of the two side wall blocks (28). An L-shaped plate (29) is slidably connected in the grooves (291). A connecting frame (292) is fixedly connected to the side wall block (28). A plurality of groups of second guide rods (293) are slidably connected to the connecting frame (292). One end of the second guide rod (293) penetrates into the groove (291) and is fixedly connected to the L-shaped plate (29). A fixing block (290) is fixedly connected to the outer periphery of the second guide rod (293). The fixing block (290) is connected to the connecting frame (292) by a second spring (294). When the connecting frame (32) approaches the capacitor (20) on the first clamping arm (25) and the second clamping arm (26), a plurality of L-shaped plates (29) located on both sides of the capacitor (20) repeatedly impact both sides of the capacitor (20) in a small area for multiple times to test the anti-impact performance of the winding of the capacitor (20) in the horizontal direction.

8. The core energizing device for a thin film capacitor used in an electric vehicle according to claim 7, characterized in that, Triangular bumps (322) are respectively arranged on both sides of the bearing plate (321) on the connecting frame (32), and the triangular bumps (322) correspond to the L-shaped plates (29).

9. The core energizing device for a thin film capacitor used in an electric vehicle according to claim 1, characterized in that, An installation disk (5) is arranged above the bearing disk (2). A plurality of second electrodes (52) are arranged on the installation disk (5). A plurality of first electrodes (51) respectively electrically connected to the electrode pieces (254) are installed on the bearing disk (2). When the installation disk (5) moves downward, the second electrodes (52) are electrically connected to the first electrodes (51).

10. A film capacitor core energizing process for an electric vehicle, including a film capacitor core energizing device for an electric vehicle as described in claim 6, characterized in that, It includes the following steps: S1. The capacitor (20) is loaded from the loading station (7) and clamped on the bearing disk (2) by the first clamping arm (25) and the second clamping arm (26). S2. Through the intermittent rotation of the bearing disk (2), AC low-voltage pre-energization, short-circuit discharge, C1-D1 measurement, impulse current aging, DC high-voltage energization, current-limiting discharge, insulation resistance pre-charging, insulation resistance testing, current-limiting discharge, short-circuit discharge, defective product rejection, mechanical gripper assembly material taking, and output of materials by the conveyor belt (6) are carried out.

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