Capacitor core energizing device and technology of thin-film capacitor for electric automobile

Abstract

The invention discloses a thin-film capacitor core energizing device and process for an electric vehicle, and relates to the technical field of capacitor energizing devices. A thin-film capacitor core energizing device for an electric vehicle comprises a bearing disc. When the capacitor is clamped through the first clamping arm and the second clamping arm, auxiliary clamping is carried out on the two sides of the capacitor through the side wall blocks, transverse impact is rapidly carried out on a winding film of the capacitor, the impact resistance of the capacitor is detected while the contact area of the capacitor and an electrode plate on the second side wall is effectively increased, and the detection accuracy is improved. Meanwhile, the bottom of the capacitor can be supported through the L-shaped plates on the side wall blocks to prevent head collapse, so that the contact area between the capacitor and the electrode plates on the second side wall is effectively increased, and normal operation of enabling operation is guaranteed; in addition, when the capacitor is clamped through the mechanical clamping jaw assembly, the L-shaped plate can be driven to carry out impact resistance testing on the side face of the capacitor in a reciprocating mode again, and the performance of the capacitor is effectively improved.

Description

Technical Field

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

[0002] Capacitors are devices that can hold electric charge. They are widely used in electric vehicle electronic components and can also be used in other equipment circuits as direct current isolation, alternating current, coupling, bypass, filtering, tuning circuits, energy conversion, and control.

[0003] The capacitor is wound by a winding machine so that there is an isolation film between the two capacitors, and then gold is sprayed on the capacitor. The capacitor is empowered through pre-energization (Max 250Vac, synchronous barcode scanning gun), impulse current aging (Max120Hz, Max 2kVdc-20kA), DC high voltage empowerment (Max 3kVdc-1A) + self-healing parameter test (n-△u), insulation resistance test (Max 1kVdc-100GΩ), capacitance loss measurement (TH2830+test fixture) and other empowerment processes; Among them, impulse current aging refers to the process of aging and testing electrical equipment or components using rapidly changing large currents (i.e. impulse currents). This large current increases rapidly in a short time and reaches a peak value, and then rapidly decreases to zero or close to zero in a very short time; therefore, the empowerment of capacitors requires corresponding equipment to complete the operation of multiple empowerment processing techniques for capacitors;

[0004] The existing equipment continuously clamps the capacitor and performs the energizing process one by one. When the clamp on the existing equipment clamps the capacitor, it usually uses the flexible electrode on the clamp to clamp one end of the capacitor to achieve the connection and disconnection between the flexible electrode and the capacitor during energization. This may cause the clamp to tilt when clamping the capacitor, which will reduce the contact area between the flexible electrode and the capacitor or create a gap, resulting in errors in the energizing process. As the clamp reduces the clamping area of ​​the capacitor, the capacitor sags under the action of gravity, resulting in the subsequent robot arm being unable to grab it, or the robot arm collides with the capacitor, causing a safety accident. To this end, our company has proposed a thin 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 the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a film capacitor core energizing device for electric vehicles, including a carrying plate, and also including: a plurality of first clamping arms and second clamping arms that are circumferentially arranged on the carrying plate and move relative to each other, the first clamping arms and the second clamping arms are used to clamp the capacitor; electrode sheets are respectively arranged on the first clamping arms and the second clamping arms, so that when the first clamping arms and the second clamping arms clamp the capacitor, the electrode sheets contact the capacitor; side wall blocks are respectively arranged on the first clamping arms and the second clamping arms, and the two side wall blocks are opposite to each other. When the first clamping arms and the second clamping arms move away from each other, the two side wall blocks follow the first clamping arms and the second clamping arms to move. When the first clamping arms and the second clamping arms approach each other, the two side wall blocks do not follow the first clamping arms and the second clamping arms to move. When the first clamping arms and the second clamping arms clamp the capacitor, the two side wall blocks quickly approach the two sides of the clamped capacitor, and while clamping the capacitor, the impact resistance of the winding of the capacitor in the horizontal direction is tested.

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

[0008] Preferably, the first clamp arm and the second clamp arm are respectively fixedly connected with a first rack and a second rack, 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, and when the guide wheel is pushed to rotate the connecting shaft, the gears respectively mesh with the first rack and the second rack to drive the first clamp arm and the second clamp arm away from each other.

[0009] Preferably, the first clamp arm and the second clamp arm are respectively provided with a first side wall, a second side wall and a third side wall, and the electrode sheet is provided 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 and the third side wall are connected 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 clamp arm and the second clamp arm respectively drive the first guide rod away from each other, the round block on the first guide rod enters the elastic clip, and the elastic clip pulls the first guide rod, and when the first clamp arm and the second clamp arm approach each other and clamp the capacitor, the first guide rod breaks free from the elastic clip and quickly clamps the capacitor.

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

[0011] Furthermore, it also includes a mechanical gripper assembly for gripping and transferring the capacitors on the first gripper arm and the second gripper arm, the mechanical gripper assembly includes an electric slide, a connecting frame is installed on the slide seat of the electric slide, a first cylinder is installed on the connecting frame, the first cylinder and the supporting plate on the connecting frame form a clamping space for the capacitor; the mechanical gripper assembly also includes a base plate, a rotating shaft is installed on the base plate, a second cylinder is symmetrically installed on the base plate, a mounting plate is installed on the second cylinder, a double-headed cylinder is installed on the mounting plate, and arm rods are fixedly connected to the telescopic ends on both sides of the double-headed cylinder.

[0012] Furthermore, a plurality of grooves are provided on the opposite surfaces of the two side wall blocks, an L-shaped plate is slidably connected in the groove, 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 passes through the groove and is fixedly connected to the L-shaped plate, a fixed block is fixedly connected to the outer periphery of the second guide rod, the fixed block and the connecting frame are connected by a second spring, and when the connecting frame is close to the capacitors on the first clamp arm and the second clamp arm, the plurality of L-shaped plates located on both sides of the capacitor reciprocately impact small areas on both sides of the capacitor multiple times, so as to test the impact resistance of the winding of the capacitor in the horizontal direction.

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

[0014] Preferably, a mounting plate is provided above the supporting plate, a plurality of second electrodes are provided on the mounting plate, a plurality of first electrodes electrically connected to the electrode sheets are installed on the supporting plate, and when the mounting plate moves downward, the second electrodes are electrically connected to the first electrodes.

[0015] A film capacitor core energy-enabling process for electric vehicles comprises the following steps:

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

[0017] S2. After the carrier plate rotates intermittently, AC low-voltage pre-energization, short-circuit discharge, C1-D1 measurement, impact current aging, DC high-voltage energization, current-limited discharge, insulation resistance pre-charging, insulation resistance test, current-limited discharge, short-circuit discharge, defective product removal, mechanical gripper assembly material removal, and conveyor belt material output are carried out.

[0018] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: when the present invention clamps the capacitor by the first clamping arm and the second clamping arm, the two sides of the capacitor are auxiliary clamped by the side wall block, and the winding film of the capacitor is quickly subjected to a lateral relative impact, while effectively increasing the contact area between the capacitor and the electrode sheet on the second side wall, the capacitor is subjected to an impact resistance test, and at the same time, when the side wall block auxiliary clamps the capacitor, the bottom of the capacitor can be supported by the L-shaped plate on the side wall block to prevent the head from collapsing, thereby effectively increasing the contact area between the capacitor and the electrode sheet on the second side wall, and ensuring the normal operation of the enabling operation;

[0019] In addition, when the capacitor is clamped by the mechanical clamp assembly, the L-shaped plate can be driven to reciprocate again to perform an impact resistance test on the side of the capacitor, thereby effectively improving the performance of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached picture:

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

[0022] Figure 2 A schematic diagram of the structure of a carrier plate of a film capacitor core energy-enabling device for electric vehicles proposed by the present invention;

[0023] Figure 3 A film capacitor core energy-enabling device for electric vehicles proposed by the present invention Figure 2 The structural diagram at A in the middle;

[0024] Figure 4 A top view of a film capacitor core energy-enabling device for electric vehicles proposed by the present invention;

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

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

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

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

[0029] Fig. 9 This is a schematic diagram of the structure of a tension spring of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0030] Fig.10 This is a schematic structural diagram of a first clamping arm and a second clamping arm of a film capacitor core energizing device for electric vehicles proposed by the present invention;

[0031] Fig.11 A film capacitor core energy-enabling device for electric vehicles proposed by the present invention Fig.10 Schematic diagram of the structure at B in the middle;

[0032] Fig.12 This is a schematic structural diagram of an elastic clip and an L-shaped plate of a film capacitor core energizing device 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 sheet; 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 slide; 31, slide seat; 32, connecting frame; 321, bearing plate; 322, triangular protrusion; 33, first cylinder; 4, base plate; 41, second cylinder; 42, mounting plate; 43, double-headed cylinder; 44, arm; 45, rotating shaft; 5, mounting plate; 51, first electrode; 52, second electrode; 6, conveyor belt; 7, loading station. DETAILED DESCRIPTION

[0034] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0035] Example 1: Reference Figure 1-Figure 12A film capacitor core energizing device for electric vehicles includes a bearing cabinet 1, the bearing cabinet 1 is used to provide facilities for the installation of the following structure, and also includes a bearing plate 2 installed on a mounting panel 11 in the bearing cabinet 1, and also includes: a plurality of first clamping arms 25 and second clamping arms 26 arranged circumferentially on the bearing plate 2 and moving relative to each other, the first clamping arms 25 and the second clamping arms 26 are used to clamp the capacitor 20; an electrode sheet 254, which is respectively arranged on the first clamping arm 25 and the second clamping arm 26, so that when the first clamping arm 25 and the second clamping arm 26 clamp the capacitor 20, the electrode sheet 254 contacts the capacitor 20; a side wall block 28 , respectively arranged on the first clamping arm 25 and the second clamping arm 26, the two side wall blocks 28 are opposite to each other, when the first clamping arm 25 and the second clamping arm 26 are away from each other, the two side wall blocks 28 move with the first clamping arm 25 and the second clamping arm 26, when the first clamping arm 25 and the second clamping arm 26 are close to each other, the two side wall blocks 28 do not move with the first clamping arm 25 and the second clamping arm 26, when the first clamping arm 25 and the second clamping arm 26 clamp the capacitor 20, the two side wall blocks 28 quickly approach the two 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 installed on the circumference of the carrier plate 2, side plates 22 are installed on both sides of the bottom plate 21, upper cover plates 23 are installed on the two side plates 22, a guide rod 24 is installed between the two side plates 22, a first clamping arm 25 and a second clamping arm 26 are both slidably connected to the guide rod 24, and the first clamping arm 25 and the second clamping arm 26 are connected by a tension spring 255;

[0037] The first clamping arm 25 and the second clamping arm 26 are respectively fixedly connected with a first rack 256 and a second rack 261. 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 respectively meshes with the first rack 256 and the second rack 261 to drive the first clamping arm 25 and the second clamping arm 26 to move away from each other.

[0038] The first clamp arm 25 and the second clamp arm 26 are respectively provided with a first side wall 251, a second side wall 252, and a third side wall 253, and the electrode sheet 254 is provided on the second side wall 252; the third side wall 253 is symmetrically slidably connected with a first guide rod 281, one end of the first guide rod 281 is fixedly connected to the side wall block 28, and the side wall block 28 and the third side wall 253 are connected through a first spring 282, and the other end of the first guide rod 281 is fixedly connected with a round block 285; the two side plates 22 are both provided with connecting plates 283, and elastic clips 284 are symmetrically provided on the connecting plates 283. When the first clamping arm 25 and the second clamping arm 26 respectively drive the first guide rod 281 to move away from each other, 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 mounted on the bottom block 2840, and the open hook 2842 is open-shaped.

[0040] It also includes a mechanical gripper assembly, which is used to grip and transfer the capacitor 20 on the first gripper arm 25 and the second gripper arm 26. The mechanical gripper assembly includes an electric slide 3, a connecting frame 32 is installed on the slide seat 31 of the electric slide 3, a first cylinder 33 is installed on the connecting frame 32, and the first cylinder 33 and the bearing plate 321 on the connecting frame 32 form a clamping space for the capacitor 20; the mechanical gripper assembly also includes a base plate 4, a rotating shaft 45 is installed on the base plate 4, a second cylinder 41 is symmetrically installed on the base plate 4, a mounting plate 42 is installed on the second cylinder 41, a double-headed cylinder 43 is installed on the mounting plate 42, and arm rods 44 are fixedly connected to the telescopic ends on both sides of the double-headed cylinder 43;

[0041] A plurality of grooves 291 are provided on the opposite surfaces of the two side wall blocks 28, an L-shaped plate 29 is slidably connected in the groove 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 passes through the groove 291 and is fixedly connected to the L-shaped plate 29, a fixed block 290 is fixedly connected to the outer periphery of the second guide rod 293, and the fixed block 290 and the connecting frame 292 are connected by a second spring 294. When the connecting frame 32 is close to 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 reciprocate to perform multiple impacts on the two sides of the capacitor 20 in a small area, so as to test the impact resistance of the winding of the capacitor 20 in the horizontal direction;

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

[0043] A mounting plate 5 is disposed above the carrier plate 2, and a plurality of second electrodes 52 are disposed on the mounting plate 5. A plurality of first electrodes 51 electrically connected to the electrode sheets 254 are mounted on the carrier plate 2. When the mounting plate 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 the multiple groups of first clamping arms 25 and second clamping arms 26. The first electrodes 51 are connected to the electrode sheets 254 on the first clamping arms 25 and second clamping arms 26 through wires. The number of the second electrodes 52 is less than 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 the first electrodes 51 is to set a defective rejection station, so there is no need to energize the first electrodes 51 and the second electrodes 52.

[0045] When the device is in use, the motor drives the carrier plate 2 to perform a single rotation to a certain angle (the angle is determined by the number of the first clamping arm 25 and the second clamping arm 26. For example, if 16 groups of the first clamping arm 25 and the second clamping arm 26 are provided, the single rotation angle of the carrier plate 2 is 22.5 degrees). At the loading station 7, the capacitor 20 is clamped on the first clamping arm 25 and the second clamping arm 26 by the loading equipment, and the capacitor 20 is driven by the carrier plate 2 to pass through each test station composed of the second electrode 52 for the empowerment process operation. When the carrier plate 2 rotates once, the mounting plate 5 will move downward, so that the second electrode 52 is electrically connected to the first electrode 51, and the empowerment process operation is realized through the contact between the electrode sheet 254 and the capacitor 20.

[0046] When the loading station 7 clamps the capacitor 20, the guide wheel 273 is pushed by one end of the pushing cylinder 12 at the loading station 7 (it should be understood that the pushing cylinder 12 at the loading station 7 is installed in the supporting cabinet 1 through a bracket, and is not installed on the supporting plate 2, so all the set pushing cylinders 12 will not rotate with the supporting plate 2), so that the connecting shaft 271 drives the gear 27 to rotate, and the gear 27 respectively engages the first rack 256 and the second rack 261, so that the first clamping arm 25 and the second clamping arm 26 move away from each other. During the process of moving away, the space between the second side walls 252 increases, and the first guide rod 281 moves with the first clamping arm 25 and the second clamping arm 26, and then the guide rod capacitor 20 is located between the second side walls 252, and the pushing cylinder 12 at the loading station 7 retracts, and the first clamping arm 25 and the second clamping arm 26 approach each other under the pull of the tension spring 255, so as to clamp the capacitor 20.

[0047] In the process of the first clamping arm 25 and the second clamping arm 26 moving away from each other, the round block 285 on the end of the first guide rod 281 will enter the arc hook 2841 from the open hook 2842 of the elastic clamp 284, and the round block 285 will be restricted in the arc hook 2841 by the narrow space between the arc hook 2841 and the open hook 2842. In the process of the first clamping arm 25 and the second clamping arm 26 approaching each other, since the first guide rod 281 is clamped by the elastic clamp 284 through the round block 285, the side wall block 28 at one end of the first guide rod 281 will not be displaced, and when the first clamping arm 25 and the second clamping arm 26 approach each other, the third side wall 253 will generate a squeezing force on the first spring 282, and when the first clamping arm 25 and the second clamping arm 26 approach each other, the capacitor 20 is clamped. When the first spring 282 is held, 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 the two sides of the capacitor 20 away from the end of the second side wall 252 under the thrust of the first spring 282, clamp the two sides of the capacitor 20 away from the end of the second side wall 252, and impact the two sides of the capacitor 20. Since the capacitor 20 is a flat cylinder formed by extrusion after winding, and the winding film of the capacitor 20 is horizontal to the first clamp arm 25 and the second clamp 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 of the capacitor 20, thereby effectively improving the working performance and safety of the capacitor 20.

[0048] When the side wall block 28 clamps the capacitor 20, a portion 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 sheet 254 on the second side wall 252.

[0049] When the clamped capacitor 20 moves to the electric slide 3, the slide 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 cylinder 33 is located above the capacitor 20, and then the first cylinder 33 moves downward to clamp the capacitor 20;

[0050] After clamping, the adjacent push cylinder 12 pushes the guide wheel 273 at the capacitor 20 clamped by the first cylinder 33 and the carrier plate 321, so that the first clamp arm 25 and the second clamp arm 26 move away from each other, releasing the clamping of the capacitor 20, and then the slide 31 returns to remove the capacitor 20 from the first clamp arm 25 and the second clamp arm 26;

[0051] Next, the second cylinder 41 pushes the arm 44 up to approach the two sides of the vertically clamped capacitor 20, the telescopic end of the double-headed cylinder 43 retracts, and the two sides of the capacitor 20 are clamped again by the arm 44, then the first cylinder 33 retracts to cancel the clamping of the capacitor 20, and then the slide 31 moves the set stroke to the second cylinder 41, so that the capacitor 20 clamped by the arm 44 leaves the supporting plate 321, and then the second cylinder 41 retracts to drive the capacitor 20 to move downward, and then the rotating shaft 45 rotates a certain angle, so that the arm 44 is perpendicular to the conveyor belt 6, the arm 44 releases the capacitor 20, and the capacitor 20 falls on the conveyor belt 6, completing the energizing operation of the capacitor 20.

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

[0053] Furthermore, an electrode probe is provided on the surface where the arm 44 contacts the capacitor 20, and when the arm 44 clamps the two sides of the capacitor 20, the electrode probe can be used to perform an energizing process operation on the capacitor 20, and each link can be effectively utilized to improve the efficiency of the energizing process operation of the capacitor 20;

[0054] When the connecting frame 32 removes the capacitor 20 on the first clamping arm 25 and the second clamping arm 26, when the supporting plate 321 on the connecting frame 32 is close to the bottom of the capacitor 20, the triangular protrusion 322 on the supporting plate 321 will reciprocate to push the L-shaped plate 29 to slide in the groove 291. When the triangular protrusion 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 the two sides of the capacitor 20 again, so that when the capacitor 20 is removed, the impact resistance test of the capacitor 20 can be performed again, and the L-shaped plate Compared with the impact of the side wall block 28 on the side of the capacitor 20, the impact of the L-shaped plate 29 on the side of the capacitor 20 is reflected in a 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 in a large area, it is converted into a small area and multiple impacts by the L-shaped plate 29. This can further improve the test method of the impact resistance test performance of the winding film of the capacitor 20, making the impact resistance test result more accurate.

[0055] The impact resistance test can be detected by recording the parameters of the capacitor 20 when the capacitor 20 is on the carrier plate 2 by using the first electrode 51 and the second electrode 52 to energize the capacitor 20, and then detecting the capacitor 20 when the first electrode 51 is in electrical contact with other second electrodes 52, and comparing the changes in the parameters. If the capacitor 20 is unqualified, the capacitor 20 is disengaged from the first clamping arm 25 and the second clamping arm 26 by extending the push cylinder 12 at the corresponding position before the capacitor 20 reaches the electric slide 3 or after it passes over the electric slide 3, and the unqualified capacitor 20 is removed;

[0056] The qualified capacitor 20 can be subjected to an impact resistance test again when clamped by the first cylinder 33 , and can be tested again when clamped by the arm 44 , thereby further improving the performance test of the capacitor 20 .

[0057] Example 2: Reference Figure 1-Figure 12 , a film capacitor core energy-enabling process for electric vehicles, 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 carrier plate 2 rotates intermittently, AC low-voltage pre-energization, short-circuit discharge, C1-D1 measurement, impact current aging, DC high-voltage energization, current-limited discharge, insulation resistance pre-charging, insulation resistance test, current-limited discharge, short-circuit discharge, defective product rejection, mechanical gripper assembly material removal, and conveyor belt 6 material output are performed.

[0060] When the present invention clamps the capacitor 20 by the first clamping arm 25 and the second clamping arm 26, the side wall block 28 is used to assist in clamping the two sides of the capacitor 20, 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 sheet 254 on the second side wall 252, and then the capacitor 20 is tested for impact resistance. At the same time, when the side wall block 28 assists in clamping the capacitor 20, the L-shaped plate 29 on the side wall block 28 can be used to support the bottom of the capacitor 20 to prevent the head from collapsing, thereby effectively increasing the contact area between the capacitor 20 and the electrode sheet 254 on the second side wall 252, and ensuring that the enabling operation is carried out normally;

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

[0062] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A film capacitor core energizing device for electric vehicles, comprising a carrier plate (2), characterized in that: Also includes: A plurality of groups of first clamping arms (25) and second clamping arms (26) are circumferentially arranged on the carrier plate (2) and are capable of relative motion, wherein the first clamping arms (25) and the second clamping arms (26) are used to clamp the capacitor (20); An electrode sheet (254) is respectively arranged on the first clamping arm (25) and the second clamping arm (26), so that when the first clamping arm (25) and the second clamping arm (26) clamp the capacitor (20), the electrode sheet (254) is in contact with the capacitor (20); The side wall blocks (28) are respectively arranged on the first clamping arm (25) and the second clamping arm (26), and the two side wall blocks (28) are opposite to each other. When the first clamping arm (25) and the second clamping arm (26) move away from each other, the two side wall blocks (28) move along with the first clamping arm (25) and the second clamping arm (26). When the first clamping arm (25) and the second clamping arm (26) approach each other, the two side wall blocks (28) do not move along with the first clamping arm (25) and the second clamping arm (26). When the first clamping arm (25) and the second clamping arm (26) clamp the capacitor (20), the two side wall blocks (28) quickly approach the two sides of the clamped capacitor (20), and while clamping the capacitor (20), the impact resistance of the winding of the capacitor (20) in the horizontal direction is tested.

2. The film capacitor core energizing device for electric vehicles according to claim 1, characterized in that: A plurality of bottom plates (21) are installed on the circumference of the carrier plate (2), side plates (22) are installed on both sides of the bottom plate (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 arm (25) and the second clamping arm (26) are both slidably connected to the guide rod (24), and the first clamping arm (25) and the second clamping arm (26) are connected via a tension spring (255).

3. The film capacitor core energizing device for electric vehicles according to claim 2, characterized in that: The first clamping arm (25) and the second clamping arm (26) are respectively fixedly connected with a first rack (256) and a second rack (261); 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) respectively meshes with the first rack (256) and the second rack (261) to drive the first clamping arm (256) and the second clamping arm (26) to move away from each other.

4. The film capacitor core energizing device for electric vehicles according to claim 3, characterized in that: 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 sheet (254) is provided on the second side wall (252); A first guide rod (281) is symmetrically 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); the side wall block (28) and the third side wall (253) are connected via a first spring (282); the other end of the first guide rod (281) is fixedly connected to a round block (285); A connecting plate (283) is mounted on each of the two side plates (22), and an elastic clip (284) is symmetrically mounted on the connecting plate (283). When the first clamp arm (25) and the second clamp arm (26) respectively drive the first guide rod (281) to move away from each other, the round block (285) on the first guide rod (281) enters the elastic clip (284), and the elastic clip (284) holds 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 clamp (284) and quickly clamps the capacitor (20).

5. The film capacitor core energizing device for electric vehicles according to claim 4, characterized in that: The elastic clip (284) comprises 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 mounted on the bottom block (2840); and the open hook (2842) is in an open shape.

6. The film capacitor core energizing device for electric vehicles according to claim 4, characterized in that: It also includes a mechanical clamping claw assembly for clamping and transferring the capacitor (20) on the first clamping arm (25) and the second clamping arm (26), the mechanical clamping claw assembly including an electric slide (3), a connecting frame (32) being installed on the slide seat (31) of the electric slide (3), a first cylinder (33) being installed on the connecting frame (32), and the first cylinder (33) and the bearing plate (321) on the connecting frame (32) forming a clamping space for the capacitor (20); The mechanical gripper assembly also includes a base plate (4), a rotating shaft (45) is mounted on the base plate (4), a second cylinder (41) is symmetrically mounted on the base plate (4), a mounting plate (42) is mounted on the second cylinder (41), a double-headed cylinder (43) is mounted on the mounting plate (42), and arm rods (44) are fixedly connected to the telescopic ends on both sides of the double-headed cylinder (43).

7. A film capacitor core energizing device for electric vehicles according to claim 6, characterized in that: A plurality of grooves (291) are provided on opposite surfaces of the two side wall blocks (28), an L-shaped plate (29) is slidably connected in the groove (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) passes through the groove (291) and is fixedly connected to the L-shaped plate (29), a fixed block (290) is fixedly connected to the outer periphery of the second guide rod (293), and the fixed block (290) and the connecting frame (292) are connected via a second spring (294). When the connecting frame (32) is close to 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) reciprocate to perform multiple impacts on small areas on both sides of the capacitor (20), thereby testing the impact resistance of the winding of the capacitor (20) in the horizontal direction.

8. The film capacitor core energizing device for electric vehicles according to claim 7, characterized in that: Triangular protrusions (322) are respectively provided on both sides of the bearing plate (321) on the connecting frame (32), and the triangular protrusions (322) correspond to the L-shaped plate (29).

9. The film capacitor core energizing device for electric vehicles according to claim 1, characterized in that: A mounting plate (5) is arranged above the carrier plate (2), a plurality of second electrodes (52) are arranged on the mounting plate (5), a plurality of first electrodes (51) respectively electrically connected to the electrode sheets (254) are mounted on the carrier plate (2), and when the mounting plate (5) moves downward, the second electrodes (52) are electrically connected to the first electrodes (51).

10. A process for energizing a thin film capacitor for electric vehicles, comprising a device for energizing a thin film capacitor for electric vehicles as claimed in claim 6, characterized in that: The following steps are involved: 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); S2, through the intermittent rotation of the carrier plate (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 test, current limiting discharge, short circuit discharge, defective product removal, mechanical gripper assembly material removal, and conveyor belt (6) material output are performed.

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