Capacitor burn-in fixture

Abstract

The application discloses a capacitor aging clamp, which comprises a plurality of spaced conductive plates, a plurality of pressing plates, a positive electrode connector, a negative electrode connector and a fastening device; wherein the top surface of each conductive plate is provided with a plurality of positioning grooves, and the two lead wires of the capacitor are clamped on the positioning grooves of two adjacent conductive plates; the top surface of each conductive plate is covered with a pressing plate; the positive electrode connector is connected with the conductive plate clamping the positive electrode lead wire of the capacitor through a wire; the negative electrode connector is connected with the conductive plate clamping the negative electrode lead wire of the capacitor through a wire; and the pressing plate of the fastening device is covered on the conductive plate through the fastening device. The application improves the clamping efficiency of the capacitor, simplifies the clamping mode of the capacitor and effectively protects the capacitor.

Description

Technical Field

[0001] This application relates to fixtures, and more specifically, to a capacitor aging fixture. Background Technology

[0002] During the production of axial capacitors, processing operations inevitably cause some damage to the capacitors. Therefore, after assembly, the capacitors usually need to be aged to repair damage caused during production or to discard irreparable products. To improve the aging effect, aging fixtures have been designed. Traditional aging fixtures generally consist of highly conductive product clamps, connecting strips, wires, and a fixing plate. Two rows of product clamps are fixed on the fixing plate. Each row of product clamps is soldered or screwed to the connecting strips and wires. The positive terminal of the capacitor is connected to one product clamp, which is connected to the positive terminal of the power supply via a wire; the negative terminal of the capacitor is connected to the other product clamp, which is connected to the negative terminal of the power supply via a wire. By energizing the power supply, all capacitors on the fixture can be aged. However, in this type of fixture, because the clamps are made of highly conductive metal and operate at high temperatures for extended periods (typically aging temperatures of 80°C and above), the clamps are prone to aging, deformation, and poor contact over time. In such cases, the damaged product clamps must be replaced. However, since the product clips are fixed to the mounting plate, replacement is very inconvenient.

[0003] Therefore, in order to solve the above problems, technologies such as... have been developed. Figure 1 The capacitor aging fixture shown has its product clamp 1 replaced with a different shape, which has the advantage of making product clamp 1 easy to replace. The clamping principle is that the capacitor lead is inserted vertically downward into the gap 10 located in the middle of the product clamp 1, and the lead is clamped by the metal plate 11 located in the gap 10. However, the disadvantages of this fixture are: 1. When the capacitor lead is inserted into the clamp, the friction between the capacitor lead and the clamp will scratch the capacitor lead, especially the plating on the surface of the capacitor lead; 2. Only one lead can be clamped at a time when clamping the capacitor, which is inefficient; 3. The method of clamping the capacitor is complicated. Summary of the Invention

[0004] The purpose of this application is to provide a capacitor aging fixture that improves the clamping efficiency of capacitors, simplifies the clamping method of capacitors, and effectively protects capacitors.

[0005] The embodiments of this application are implemented as follows:

[0006] This application provides a capacitor aging fixture, comprising multiple spaced conductive plates, multiple pressure plates, a positive terminal connector, a negative terminal connector, and a fastening device; wherein, each conductive plate has multiple positioning grooves on its top surface, and the two leads of the capacitor are respectively clamped in the positioning grooves of two adjacent conductive plates; a pressure plate covers the top surface of each conductive plate; the positive terminal connector is connected to the conductive plate clamping the positive terminal lead of the capacitor via a wire; the negative terminal connector is connected to the wire plate clamping the negative terminal lead of the capacitor via a wire; and the pressure plate of the fastening device covers the conductive plate.

[0007] In one embodiment, the fastening device includes a base and a fastening element detachably connected to the base, the fastening element being disposed on a pressure plate.

[0008] In one embodiment, the base has a protrusion; the fastening element includes a fixing part and a buckle connected to the fixing part, the fixing part is fixedly mounted on the pressure plate, and the buckle is detachably connected to the protrusion.

[0009] In one embodiment, the fixing part and the buckle are connected by a pressure adjusting element, which is used to adjust the connection strength between the buckle and the protrusion.

[0010] In one embodiment, each pressure plate is provided with two fastening elements, and the two fastening elements are located in the length extension direction of the pressure plate; each conductive plate is provided with two bases on both sides, and the two bases are located in the length extension direction of the conductive plate.

[0011] In one embodiment, the pressure plate includes a body layer and an insulating layer that adheres to the body layer; when the pressure plate covers the conductive plate, the insulating layer is close to the conductive plate, and the body layer is away from the conductive plate.

[0012] In one embodiment, the conductive plate has a hollow structure.

[0013] In one embodiment, the capacitor aging fixture further includes a base plate, and a conductive plate, a base, a positive terminal connector, and a negative terminal connector are all fixedly mounted on the base plate.

[0014] In one embodiment, a current-limiting resistor is connected to the wire.

[0015] In one embodiment, the fastening device is made of an insulating material.

[0016] The advantages of this application compared with the prior art are as follows: This application provides a capacitor aging fixture, including multiple spaced conductive plates, multiple pressure plates, a positive terminal connector, a negative terminal connector, and a fastening device; wherein, each conductive plate has multiple positioning grooves on its top surface, and the two leads of the capacitor are respectively clamped in the positioning grooves of two adjacent conductive plates; a pressure plate is covered on the top surface of each conductive plate; the positive terminal connector is connected to the conductive plate that clamps the positive terminal lead of the capacitor through a wire; the negative terminal connector is connected to the wire plate that clamps the negative terminal lead of the capacitor through a wire; the pressure plate of the fastening device is covered on the conductive plate by the fastening device.

[0017] As can be seen, the capacitor clamping method in this application is simple and convenient. The leads are placed in the positioning slots on the conductive plate, and the cover plate is closed onto the conductive plate using a fastening device to fix the capacitor leads, thus completing the capacitor clamping process. Furthermore, the clamping method in this application allows for the clamping of multiple capacitor leads at once, improving clamping efficiency. Additionally, because the capacitor leads are placed in the positioning slots, the capacitor clamping fixture in this application will not scratch the capacitor leads, effectively protecting the capacitor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a capacitor aging fixture structure provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the capacitor aging fixture structure provided in the second embodiment of this application;

[0021] Figure 3 This is a partial explosion diagram of a capacitor aging fixture provided in an embodiment of this application;

[0022] Figure 4 Provided for an embodiment of this application Figure 3 A magnified view of a portion of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the capacitor aging fixture structure provided in the third embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the capacitor aging fixture structure provided in the fourth embodiment of this application;

[0025] Figure 7 Provided for an embodiment of this application Figure 6 A magnified view of a portion of point B in the middle;

[0026] Figure 8 Provided for an embodiment of this application Figure 3 A magnified view of a portion of point C in the middle;

[0027] Figure 9 Provided for an embodiment of this application Figure 3 A magnified view of a portion of point D.

[0028] Figure label:

[0029] 1-Product clamp; 2-Capacitor aging clamp; 10-Gap; 11-Metal sheet; 20-Conductive plate; 21-Positioning groove; 30-Pressure plate; 31-Body layer; 32-Insulating layer; 40-Positive terminal connector; 50-Negative terminal connector; 60-Fastening device; 61-Fastening element; 611-Fixing part; 612-Snap ring; 62-Base; 621-Protrusion; 6211-Fixing groove; 63-Pressure regulating element; 70-Base plate; 80-Current limiting resistor; 90-Capacitor; 91-Lead wire. Detailed Implementation

[0030] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0034] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0035] Please refer to Figure 2 This is a schematic diagram of the capacitor aging fixture 2 provided in the second embodiment of this application. Please refer to... Figure 3 This is a partial explosion diagram of the capacitor aging fixture 2 provided in an embodiment of this application. Please refer to... Figure 4 This is provided in one embodiment of the present application. Figure 3 A magnified view of a portion at point A. Please refer to... Figure 5 This is a schematic diagram of the capacitor aging fixture 2 provided in the third embodiment of this application. Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this application provides a capacitor aging fixture 2, including multiple spaced conductive plates 20, multiple pressure plates 30, a positive terminal connector 40, a negative terminal connector 50, and a fastening device 60. Each conductive plate 20 has multiple positioning grooves 21 on its top surface, and the two leads 91 of a capacitor 90 are respectively clamped in the positioning grooves 21 of two adjacent conductive plates 20. A pressure plate 30 covers the top surface of each conductive plate 20. The positive terminal connector 40 is connected to the conductive plate 20 holding the positive lead of the capacitor 90 via a wire. The negative terminal connector 50 is connected to the lead plate holding the negative lead of the capacitor 90 via a wire. The pressure plate 30 is covered on the conductive plate 20 by the fastening device 60. Specifically, the capacitor aging fixture 2 of this application can be used to clamp axial capacitors; the wires can be connected to the conductive plate 20 by welding.

[0036] In one operation, before aging the capacitor 90, the capacitor 90 is first clamped onto the capacitor aging fixture 2. Specifically, the clamping method is as follows: first, the two leads 91 of a set of capacitors 90 are placed on the positioning slots 21 of two adjacent conductive plates 20. During placement, the positive lead of each capacitor 90 is placed in the positioning slot 21 of one of the two adjacent conductive plates 20, and the negative lead of each capacitor 90 is placed in the positioning slot 21 of the other of the two adjacent conductive plates 20. The capacitors 90 are clamped in the above manner. After one set of capacitors 90 is clamped, another set of capacitors 90 is clamped onto the positioning slots 21 of two other adjacent conductive plates 20. Multiple sets of capacitors 90 are placed on the conductive plates 20 in the above manner until all conductive plates 20 have leads 91 placed on them. When two sets of capacitors 90 share the same conductive plate 20, the leads of the same polarity of the two sets of capacitors 90 are placed on the positioning groove 21 of the shared conductive plate 20. After the leads 91 are placed, the clamping plate 30 is closed onto the conductive plate 20 by the fastening device 60 to fix the capacitor leads 91, and at the same time, the capacitor leads 91 are brought into contact with the conductive plate 20. After fixing, the clamping of the capacitors 90 is completed. Then, the conductive plate 20 with the positive leads of the capacitors 90 is connected to the positive terminal 40 by wires, and the conductive plate 20 with the negative leads of the capacitors 90 is connected to the negative terminal 50 by wires. After the connection is completed, the positive terminal 40 is connected to the positive terminal of the power supply, and the negative terminal 50 is connected to the negative terminal of the power supply to age the capacitors 90.

[0037] As can be seen from the above embodiments, the capacitor 90 clamping method in this application is simple and convenient. The lead wire 91 is placed in the positioning groove 21 on the conductive plate 20, and the cover plate is closed onto the conductive plate 20 by the fastening device 60 to fix the capacitor lead wire 91, thus completing the clamping work of the capacitor 90. Furthermore, the clamping method in this application allows for the clamping of multiple capacitor leads 91 at once, improving the clamping efficiency of the capacitor 90. In addition, since the lead wire 91 of the capacitor 90 is placed in the positioning groove 21, the capacitor aging fixture 2 in this application will not scratch the capacitor leads 91 when clamping the capacitor 90, effectively protecting the capacitor 90 and improving the product qualification rate of the capacitor 90. Furthermore, it can be seen that the capacitor aging fixture 2 in this application can clamp multiple capacitors 90, enabling simultaneous aging of multiple capacitors 90, thus improving the aging efficiency of the capacitor 90. In addition, since in this application, when clamping the capacitor 90, it is only necessary to fix the capacitor 90 lead 91 in the positioning groove 21, the capacitor aging fixture 2 in this application can clamp capacitors 90 of various specifications, realize the aging of capacitors 90 of various specifications, and has strong compatibility.

[0038] In one embodiment, an insulating layer 32 is provided on the wire connecting the positive terminal 40 and the conductive plate 20, and an insulating layer 32 is provided on the wire connecting the negative terminal 50 and the conductive plate 20.

[0039] By implementing the above measures, an insulation layer 32 is installed on the conductor to prevent leakage and improve safety during the aging process.

[0040] In one embodiment, a current-limiting resistor 80 is connected to the wire between the positive terminal 40 and the conductive plate 20, and a current-limiting resistor 80 is connected to the wire between the negative terminal 50 and the conductive plate 20.

[0041] By using the above measures, a current-limiting resistor 80 is connected to the wire to adjust the charging and discharging current of capacitor 90 during the aging process, so as to prevent excessive charging and discharging current from causing capacitor 90 to fail and effectively protect capacitor 90.

[0042] In one embodiment, the conductive plate 20 is a hollow cuboid structure, and the width of the rectangle on the top surface of the conductive plate 20 is 8 to 15 mm; preferably, the width of the rectangle on the top surface of the conductive plate 20 can be 10 mm.

[0043] By implementing the above measures, the conductive plate 20 is made into a hollow structure, saving materials and reducing manufacturing costs. At the same time, the conductive plate 20 is made into a cuboid structure, and the width of the rectangle on the top surface of the conductive plate 20 is set, which increases the stability of the capacitor 90 lead 91 on the conductive plate 20.

[0044] Please refer to Figure 6 This is a schematic diagram of the capacitor aging fixture 2 provided in the fourth embodiment of this application. Please refer to... Figure 7 This is provided in one embodiment of the present application. Figure 6 A magnified view of a portion at point B. Please refer to the diagram. Figure 8 This is provided in one embodiment of the present application. Figure 3 A magnified view of a portion at point C. Please refer to... Figure 9 This is provided in one embodiment of the present application. Figure 3 A magnified view of a portion at point D. Figure 6 In order to be in Figure 1 The diagram shows the corresponding position of the capacitor 90-degree clamp when viewed in the direction indicated by the arrow. Figure 7 As shown, the fastening device 60 in this application includes a base 62 and a fastening element 61 detachably connected to the base 62, and the fastening element 61 is disposed on the pressure plate 30. Figure 8 As shown, the fastening element 61 includes a fixing part 611 and a retaining ring 612 connected to the fixing part 611. The fixing part 611 is fixedly mounted on the pressure plate 30. Figure 9As shown, the base 62 has a protrusion 621, and the buckle 612 is detachably connected to the protrusion 621. Figure 7 As shown, the buckle 612 can be connected to the protrusion 621 by buckling. When the buckle 612 is buckled on the protrusion 621, the buckle 612 is engaged in the fixing groove 6211 provided on the protrusion 621.

[0045] like Figure 2 and Figure 3 As shown, in this embodiment, each cover plate needs to be fixed to the conductive plate 20 by two fastening devices 60. Therefore, each pressure plate 30 is provided with two fastening elements 61, which are located along the length extension direction of the pressure plate 30 and at both ends of the pressure plate 30; each conductive plate 20 has two bases 62 on both sides, and the two bases 62 are located along the length extension direction of the conductive plate 20. The fastening elements 61 and bases 62 belonging to the same fastening device 60 are in corresponding positions.

[0046] In one operation, after placing the capacitor 90 lead 91 in the positioning groove 21 on the conductive plate 20, the pressure plate 30 is placed on the conductive plate 20. After successful placement, each retaining ring 612 on the conductive plate 20 is fastened to the protrusion 621 of the base 62 corresponding to the retaining ring 612. Successful fastening fixes the capacitor 90 to the conductive plate 20, and simultaneously brings the capacitor 90 lead 91 into contact with the conductive plate 20. After fixing, the capacitor 90 is clamped. Then, a wiring connection is made. After successful connection, the capacitor 90 can be aged. The wiring connection is described in the above embodiment and will not be repeated here.

[0047] In one embodiment, such as Figure 8 As shown, the fixing part 611 and the buckle 612 are connected by a pressure adjusting element 63, which is used to adjust the connection strength between the buckle 612 and the protrusion 621. For example, as... Figure 8 As shown, the pressure regulating element 63 can be a screw. In this case, the fixing part 611 is connected to the retaining ring 612 by having two mounting holes on the fixing part 611. The two ends of the retaining ring 612 are placed in the corresponding mounting holes. After placement, the screw is screwed into the retaining ring 612. After successful screwing, the fixing part 611 and the retaining ring 612 can be connected.

[0048] In one operation, after the capacitor lead 91 is placed in the positioning groove 21 on the conductive plate 20, the pressure plate 30 is placed on the conductive plate 20. After successful placement, each retaining ring 612 on the conductive plate 20 is fastened to the protrusion 621 of the base 62 corresponding to the retaining ring 612. In this way, the capacitor 90 is fixed to the conductive plate 20. After successful fixing, the connection strength between the retaining ring 612 and the protrusion 621 can be adjusted by rotating the pressure adjustment element 63, thereby adjusting the pressure applied to the conductive plate 20 by the pressure plate 30. After successful adjustment, the clamping of the capacitor 90 is completed. Then, the circuit is connected by wires. After successful connection, the capacitor 90 can be aged. The circuit connection is described in the above embodiment and will not be repeated here.

[0049] like Figure 7 As shown, the pressure plate 30 includes a body layer 31 and an insulating layer 32 that is attached to the body layer 31; wherein, when the pressure plate 30 covers the conductive plate 20, the insulating layer 32 is close to the conductive plate 20, and the body layer 31 is away from the conductive plate 20.

[0050] In one operation, after the capacitor 90 lead 91 is placed in the positioning groove 21 on the conductive plate 20, the pressure plate 30 is placed on the conductive plate 20; during the covering process, the insulating layer 32 adheres to the conductive plate 20; after the covering is completed, the pressure plate 30 is fixed to the conductive plate 20 by the fastening device 60. After successful fixing, the connection strength between the retaining ring 612 and the protrusion 621 can be adjusted by rotating the pressure adjusting element 63, thereby adjusting the pressure applied to the conductive plate 20 by the pressure plate 30. After successful adjustment, the clamping of the capacitor 90 is completed. Then, by connecting the wires, the capacitor 90 can be aged. The wiring connection is described in the above embodiment and will not be repeated here.

[0051] In one embodiment, the insulating layer 32 is made of a heat-resistant, flame-retardant, and elastic rubber material.

[0052] In one embodiment, the body layer 31 is made of a metal or alloy material with a deformation rate of less than 1% at 140°C to 150°C.

[0053] Through the above measures, firstly, since heating is required during the aging process of capacitor 90, providing a heat-resistant and flame-retardant insulating layer 32 on the pressure plate 30 ensures that the insulating layer 32 does not deform under heat during the aging process; simultaneously, by specifying the material of the body layer 31, deformation of the body layer 31 during the heating process of aging is effectively prevented. Therefore, it can be seen that in the above embodiment, by limiting the materials of the insulating layer 32 and the body layer 31, deformation of the pressure plate 30 is effectively prevented, thus avoiding damage to the pressure plate 30 after deformation. Figure 1The product clips in the previous paper are made of metal. They are prone to deformation when heated, and once deformed, they cannot be used and need to be replaced frequently. This application effectively solves the above problems and reduces the number of times the pressure plate 30 needs to be replaced.

[0054] Secondly, by adjusting the pressure applied to the conductive plate 20 by the pressure regulating element 63, and in conjunction with the use of the elastic insulating layer 32, both ensure that when the pressure plate 30 is placed on the conductive plate 20, the lead 91 can make full contact with the conductive plate 20 and be stably fixed to the conductive plate 20; at the same time, it ensures that the capacitor 90 lead 91 is not damaged and is not scratched by the conductive plate 20 or the pressure plate 30. In addition, the pressure plate 30 in this embodiment has a small degree of deformation, which also ensures that the pressure plate 30 can tightly cover the conductive plate 20, thereby allowing the capacitor 90 lead 91 to be stably fixed to the conductive plate 20.

[0055] In one embodiment, the fastening device 60 is made of an insulating material.

[0056] Through the above measures, since the aging current flows from the positive terminal of the power supply through the positive terminal connector 40, the wire, the conductive plate 20 where the positive terminal lead is placed, the positive terminal lead of the capacitor 90, the negative terminal lead of the capacitor 90, the conductive plate 20 where the negative terminal lead is placed, the wire, and the negative terminal connector 50 to the negative terminal of the power supply, the fastening device 60 in this embodiment is made of insulating material so that the fastening device 60, which is unrelated to the high-voltage aging process, is not energized, thereby reducing safety risks.

[0057] In one embodiment, the positioning groove 21 is arc-shaped, and the radius of the arc of the positioning groove 21 is 1.5mm to 2.5mm. Preferably, the radius of the arc of the positioning groove 21 can be 2mm, and the depth of the positioning groove 21 is less than 0.5mm.

[0058] By taking the above measures, the radius of the positioning groove 21 is set so that capacitor leads 91 of different diameters can be placed in the positioning groove 21; at the same time, the depth of the positioning groove 21 is limited to ensure that leads 91 of different specifications can be subjected to the pressure applied by the pressure plate 30, so that leads 91 of different specifications can be well fixed and prevent the leads 91 from moving after being pressed.

[0059] In one embodiment, such as Figure 2 , Figure 3 and Figure 5 As shown, the capacitor aging fixture 2 in this application also includes a base plate 70, and the conductive plate 20, base 62, positive terminal connector 40 and negative terminal connector 50 are all fixedly mounted on the base plate 70.

[0060] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A capacitor aging fixture, characterized in that, include: Multiple conductive plates are spaced apart, and each conductive plate has multiple positioning grooves on its top surface. The two leads of the capacitor are respectively clamped in the positioning grooves of two adjacent conductive plates. Multiple pressure plates, with one pressure plate covering the top surface of each conductive plate; The positive terminal connector is connected to the conductive plate that holds the positive lead of the capacitor via a wire. The negative terminal connector is connected to the conductive plate that holds the negative lead of the capacitor via a wire. A fastening device, wherein the pressure plate is covered on the conductive plate by the fastening device; The fastening device includes a base and a fastening element detachably connected to the base, wherein the fastening element is disposed on the pressure plate; The base is provided with a protrusion; the fastening element includes a fixing part and a buckle connected to the fixing part, the fixing part is fixedly disposed on the pressure plate, and the buckle is detachably connected to the protrusion. The fixing part is connected to the buckle via a pressure adjusting element, which is used to adjust the connection strength between the buckle and the protrusion. Each pressure plate is provided with two fastening elements, and the two fastening elements are located in the length extension direction of the pressure plate; each conductive plate is provided with two bases on both sides, and the two bases are located in the length extension direction of the conductive plate. The pressure plate includes a body layer and an insulating layer that is attached to the body layer; when the pressure plate is placed on the conductive plate, the insulating layer is close to the conductive plate and the body layer is away from the conductive plate.

2. The capacitor aging fixture according to claim 1, characterized in that, The conductive plate has a hollow structure.

3. The capacitor aging fixture according to claim 1, characterized in that, The capacitor aging fixture also includes: The base plate, the conductive plate, the base, the positive terminal connector and the negative terminal connector are all fixedly mounted on the base plate.

4. The capacitor aging fixture according to claim 1, characterized in that, A current-limiting resistor is connected to the wire.

5. The capacitor aging fixture according to claim 1, characterized in that, The fastening device is made of insulating material.

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