An aging fixture and an aging device for a capacitor aging process

Abstract

The utility model discloses an aging fixture and aging equipment for capacitor aging process, aging fixture includes lower support subassembly, and its upper is equipped with a plurality of positioning structure for vertical placement of aging capacitor material strip, and positioning structure can conduct electricity, upper cover subassembly, and its lower end with capacitor product contact surface can conduct electricity, buckling structure is suitable for setting on one of lower support subassembly or upper cover subassembly, and another on lower support subassembly or upper cover subassembly is equipped with buckling portion, and at least buckling structure is insulated, and upper cover subassembly is suitable for through buckling structure and buckling portion cooperation and is pressed together in the upper of lower support subassembly to make power through the lower end surface of upper cover subassembly and positioning structure respectively to the upper end side and lower end side of aging capacitor material strip and adds electricity aging. Simple structure, compact, unit space size places enough capacitor material strip to carry out aging to the greatest extent, greatly reduces operation and maintenance cost, improves production efficiency, guarantees aging effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of capacitor aging equipment, specifically relating to an aging fixture and aging equipment used in capacitor aging processes. Background Technology

[0002] Tantalum chip capacitors, aluminum electrolytic capacitors, and manganese dioxide capacitors are used in a wide range of fields, including communications, computers, digital cameras and other electronic products, automobiles, home and office appliances, instruments, aerospace, and defense. With industry development, higher requirements are being placed on capacitor performance, making leakage current a critical indicator. Capacitor leakage current contributes to excessive leakage current in all preceding processes. Reducing leakage current requires aging by applying DC voltage to the capacitor's positive and negative terminals. Currently used aging fixtures are expensive, prone to contact oxidation leading to poor leakage current repair, and require large footprints for the aging equipment. Therefore, it is necessary to propose a new solution to address this problem. Utility Model Content

[0003] In view of at least one of the above-mentioned technical problems, the purpose of this utility model is to provide an aging fixture and aging equipment for capacitor aging process, which occupies a small area, has low manufacturing cost and low maintenance cost, is stable and reliable in aging, and has a high space utilization rate.

[0004] The technical solution of this utility model is:

[0005] One objective of this utility model is to provide an aging fixture for capacitor aging processes, comprising:

[0006] The lower support assembly is adapted to make contact with one end of the power supply and conduct electricity. It is provided with several positioning structures for vertically placing the capacitor strips to be aged. The positioning structures are conductive.

[0007] The top cover assembly is adapted to make contact with the other end of the power supply and conduct electricity, and one end face of it facing the support assembly is conductive;

[0008] A snap-fit ​​structure is adapted to be disposed on one of the lower support assembly or the upper cover assembly, the other of the lower support assembly or the upper cover assembly having a snap-fit ​​portion that matches the snap-fit ​​structure, at least the snap-fit ​​structure being insulated;

[0009] The upper cover assembly is adapted to be pressed onto the lower support assembly by the fastening structure and the fastening part, so that the power supply applies power to the upper and lower ends of the capacitor strip to be aged through the conductive end face and the conductive positioning structure of the upper cover assembly, respectively.

[0010] Preferably, the positioning structure includes a plurality of downwardly recessed positioning grooves arranged in an array on the upper end surface of the lower support component.

[0011] Preferably, the upper cover assembly includes a U-shaped upper cover body and a conductive structure disposed on the lower end surface of the upper cover body. The conductive structure includes an outer single-sided conductive film and an inner buffer component, wherein the outer surface of the single-sided conductive film is conductive.

[0012] Preferably, the cushioning component comprises high-temperature resistant soft cotton.

[0013] Preferably, the cushioning component further includes a high-temperature resistant wrapping film wrapped around the high-temperature resistant soft cotton.

[0014] Preferably, the lower support assembly includes a lower support plate and a positioning structure disposed on the lower support plate, wherein both sides of the lower support plate extend beyond the positioning structure to form the fastening portion;

[0015] The upper cover body has two sides with downwardly bent portions. The bottom of the inner side of each bent portion is provided with a fastening structure, and the bottom of the fastening structure extends at least partially below the corresponding bent portion. The inner side of each fastening structure has a slot facing inward and can be fastened with the corresponding fastening portion.

[0016] Preferably, the bottom inner side of any of the fastening portions extends obliquely from bottom to top toward the inner side of the corresponding bending portion until it is flush with the bottom end face of the corresponding fastening groove.

[0017] Preferably, the length of the bottom end face of the groove is shorter than the length of the top end face.

[0018] Preferably, any of the aforementioned fastening structures is detachably connected to the corresponding bend via fasteners.

[0019] Another objective of this invention is to provide an aging device, including the aging fixture for capacitor aging process described in any of the above-mentioned claims.

[0020] Compared with the prior art, the advantages of this utility model are:

[0021] This utility model discloses an aging fixture for capacitor aging processes, comprising an upper cover assembly and a lower support assembly. The lower end face of the upper cover assembly is conductive, and the lower support assembly has a positioning structure for the capacitor strips to be aged and is also conductive. A snap-fit ​​structure presses the upper cover assembly onto the lower support assembly, allowing power to be supplied to both the upper and lower ends of the capacitors to be aged for aging. The structure is simple and compact, maximizing the placement of sufficient capacitor strips for aging within a given unit space, significantly reducing operating and maintenance costs and improving production efficiency. During aging, the single-sided conductive film is replaced with a new film each time, avoiding oxidation of old contacts that affects conductivity, thus ensuring the aging effect. This solves the problem of poor repair results due to easy oxidation of contacts in existing aging fixtures. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of the aging fixture for capacitor aging process in Embodiment 1 of this utility model when the upper cover assembly and the lower support assembly are pressed together.

[0024] Figure 2 This is a three-dimensional structural diagram of the upper cover assembly of the aging fixture for capacitor aging process according to Embodiment 1 of this utility model.

[0025] Figure 3 This is a front view structural schematic diagram of the upper cover assembly of the aging fixture for capacitor aging process according to Embodiment 1 of this utility model.

[0026] Figure 4 for Figure 3 A partially enlarged structural diagram of section A in the middle;

[0027] Figure 5 This is a top view of the lower support assembly of the aging fixture for capacitor aging process according to Embodiment 1 of this utility model.

[0028] Figure 6 This is a front view schematic diagram of the lower support assembly of the aging fixture for capacitor aging process according to Embodiment 1 of this utility model.

[0029] Figure 7 for Figure 6 A partially enlarged structural diagram of section B in the middle;

[0030] Figure 8 This is a schematic diagram of the structure of the capacitor strip to be aged;

[0031] Figure 9 This is a schematic diagram of the aging device in Embodiment 2 of this utility model.

[0032] The components are as follows: 100. Aging equipment; 10. Aging fixture; 1. Top cover assembly; 11. Top cover body; 111. Bending part; 112. Protruding strip; 12. Conductive structure; 121. Single-sided conductive film; 122. High-temperature resistant wrapping film; 123. High-temperature resistant soft cotton; 2. Lower support assembly; 21. Lower support plate; 211. Fastening part; 22. Positioning structure; 221. Positioning tooth groove; 3. Fastening structure; 31. Fastening groove; 32. Guide slope; 4. Fastener; 5. Capacitor strip to be aged; 51. Upper side; 52. Lower side; 20. Aging rack. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0034] Example 1

[0035] See Figures 1 to 8 This embodiment describes an aging fixture for capacitor aging processes, applicable to capacitors such as tantalum chip capacitors, aluminum electrolytic capacitors, and manganese dioxide capacitors. It mainly includes a lower support assembly 2, an upper cover assembly 1, and a fastening structure 3. The lower support assembly 2 is adapted to make contact with one end (positive or negative) of a power source, and has several positioning structures 22 for vertically placing the capacitor strips 5 to be aged. These positioning structures 22 are conductive, meaning the lower end 52 of the capacitor strip 5 can be positioned by the conductive positioning structures 22 while simultaneously being electrically connected to the power source, allowing the power source to apply electricity for aging. The upper cover assembly 1 is adapted to make contact with the other end (negative or positive) of the power source. The side of the upper cover assembly 1 facing the positioning structures 22 is conductive, meaning the lower end face of the upper cover assembly 1 is conductive. The conductive end face of the upper cover assembly 1 contacts the upper end 51 of the capacitor strip 5 to be aged, allowing the power source to connect with the upper end 51 of the capacitor strip 5 for electrical aging. The fastening structure 3 is suitable for being disposed on either the lower support assembly 2 or the upper cover assembly 1. The other of the lower support assembly 2 or the upper cover assembly 1 has a fastening portion 211 that matches the fastening structure 3. At least the fastening structure 3 is insulated to prevent direct electrical conduction and short circuit through this connection. The upper cover assembly 1 is suitable for being pressed onto the lower support assembly 2 by the fastening structure 3 and the fastening portion 211, so that power is applied to the upper end 51 and lower end 52 of the capacitor strip to be aged through the conductive end face and the positioning structure 22 of the upper cover assembly 1, respectively, for aging. Figure 8As shown, the capacitor strip 5 to be aged has multiple capacitors. The lower ends of all capacitors are connected together by the strip, but the upper ends are separated. During aging, the strip is placed on the positioning structure 22. The aging fixture of this utility model embodiment consists of an upper cover assembly 1 and a lower support assembly 2. It has a simple structure and a small footprint, reducing the cost of the aging fixture. The lower end face of the upper cover assembly 1 is conductive, and the lower support assembly 2 is provided with a positioning structure 22 for the capacitor strip 5 to be aged, which is also conductive. The upper cover assembly 1 is pressed onto the lower support assembly 2 by the fastening structure 3, so that the power supply can electrically conduct the upper end 51 and lower end 52 of the capacitor to be aged for aging. The structure is simple and compact, and a sufficient number of capacitor strips can be placed in a unit space for aging, greatly reducing operating and maintenance costs and improving production efficiency. During aging, the single-sided conductive film is replaced with a new film each time, avoiding the oxidation of old contacts due to repeated use, which affects conductivity, thereby ensuring the aging effect and solving the problem of poor repair effect caused by easy oxidation of contacts in the aging fixture of the prior art.

[0036] According to some preferred embodiments of the present invention, such as Figures 5 to 7 As shown, the positioning structure 22 includes a plurality of downwardly recessed positioning grooves 221 arranged in an array on the upper end face of the lower support component 2. In this embodiment of the present invention, a plurality of rows of positioning grooves 221 are provided at intervals along the length direction of the lower support component 2, and each positioning groove 221 extends along the width direction of the lower support component 2 and is greater than the length of the capacitor strip 5 to be aged. From a cross-sectional view, each positioning groove 221 is defined by the adjacent walls of two adjacent positioning teeth, resulting in a simple structure and convenient and reliable positioning.

[0037] According to some preferred embodiments of the present invention, such as Figures 2 to 4 As shown, the upper cover assembly 1 includes an inverted U-shaped upper cover body 11 and a conductive structure 12 disposed on the lower end surface of the upper cover body 11. The conductive structure 12 includes an outer single-sided conductive film 121 and an inner buffer component, and the outer surface of the single-sided conductive film 121 is conductive. Preferably, as... Figure 4 As shown, the single-sided conductive film 121 is a hollow conductive film with a waist-shaped cross-section. The buffer component includes a high-temperature resistant soft cotton 123 with a cross-section matching that of the single-sided conductive film 121, i.e., also waist-shaped. The single-sided conductive film 121 is designed with a hollow structure, with a conductive outer surface and filled with high-temperature resistant soft cotton 123 inside. The high-temperature resistant soft cotton 123 acts as a buffer when the upper cover assembly 1 and the lower support assembly 2 are pressed together, preventing the upper end 51 of the capacitor to be aged from being deformed or damaged during pressing. More preferably, as... Figure 4As shown, the buffer component also includes a high-temperature resistant wrapping film 122 wrapped around the high-temperature resistant soft cotton 123. Similarly, the high-temperature resistant wrapping film 122 is also a waist-shaped film. The high-temperature resistant wrapping film 122 makes the contact surface with the capacitor strip smoother, solving the problem of unevenness on the surface of the high-temperature resistant soft cotton 123. The single-sided conductive film 121, the high-temperature resistant wrapping film 122, and the high-temperature resistant soft cotton 123 together constitute the conductive structure 12. The high temperature resistance here should be higher than the temperature under high-temperature aging, but is not specifically limited. Those skilled in the art can select the high-temperature resistance temperature of the high-temperature resistant soft cotton 123 and the high-temperature resistant wrapping film 122 based on the temperature under high-temperature aging. At the same time, the specific materials of the single-sided conductive film 121, the high-temperature resistant soft cotton 123, and the high-temperature resistant wrapping film 122 are not limited; those skilled in the art can select them according to their needs.

[0038] According to some preferred embodiments of the present invention, such as 6 to Figure 7 As shown, the lower support assembly 2 includes a lower support plate 21 at the bottom and a positioning structure 22 disposed above the lower support plate 21, wherein both sides of the lower support plate 21 extend beyond the positioning structure 22 to form fastening portions 211. Figures 2 to 4 As shown, the upper cover body 11 includes a central flat plate and downwardly extending bent portions 111 at both ends of the flat plate. The end of any bent portion 111 furthest from the flat plate is also as shown in the figure. Figure 2 The lower end of the plate has a snap-fit ​​structure 3 on its inner side. Each snap-fit ​​structure 3 has a slot 31 on its inner side that faces inward and engages with the corresponding snap-fit ​​part 211. The bent part 111 and the flat plate can be an integral structure or separate structures connected by welding or other fixing methods such as bolts. The bent part 111 facilitates the installation of the snap-fit ​​structure 3. The snap-fit ​​slot 31 on the snap-fit ​​structure 3 allows it to engage with the snap-fit ​​parts 211 on both sides of the lower support plate 21. It should be noted that at least one of the bent part 111, the snap-fit ​​part 211, or the snap-fit ​​structure 3 is an elastic structure to facilitate easy fastening or disassembly. The bottom of the snap-fit ​​part 211 extends below the corresponding bent part 111 to facilitate the application of force during fastening and disassembly. Preferably, as... Figure 4As shown, the bottom inner side of any fastening part 211 extends obliquely from bottom to top away from the inner side of the corresponding bent part 111 until it is flush with the bottom end face of the corresponding fastening groove 31. That is to say, the bottom inner side of any fastening part 211 is an inclined guide slope 32. The guide slope 32 can play a guiding role during fastening, making it convenient and quick to fasten. More preferably, the length of the bottom end face of the fastening groove 31 is shorter than the length of the top end face. It can be easily disassembled, and only a small force is needed to separate the two, making disassembly more effortless. As an alternative embodiment, the fastening structure 3 can also be set on the lower support assembly 2. For example, the lower support plate 21 of the lower support assembly 2 has bent parts on both sides, the fastening structure 3 is set on the bent parts, and the two sides of the upper cover body 11 extend beyond the two sides of the conductive structure 12 to form fastening parts. The specific details will not be elaborated further.

[0039] According to some preferred embodiments of this utility model, any of the fastening structures 3 is detachably connected to the corresponding bent portion 111 via fasteners 4, such as screws or other connectors well known to those skilled in the art. This facilitates disassembly and replacement in case of damage to the fastening structure 3. Figure 2 As shown, each fastening structure 3 is detachably connected to the corresponding bend 111 via, but not limited to, three fasteners 4.

[0040] According to some preferred embodiments of the present invention, at least one upwardly protruding strip 112 or protrusion is formed on the upper end surface of the upper cover assembly 1. For example... Figure 1 As shown, the upper end face of the cover body 11 is provided with two L-shaped protrusions 112 or angle steels spaced apart from each other. This serves to enhance the structural strength.

[0041] The working principle of the aging fixture in this embodiment of the utility model is as follows: When the upper cover assembly 1 and the lower support assembly 2 containing the capacitor strip to be aged are fastened together, the high-temperature resistant soft cotton 123 plays a buffering role to prevent the capacitor strip from being deformed or damaged due to excessive fastening. The high-temperature resistant wrapping film 122 wraps the high-temperature resistant soft cotton 123, making its contact surface with the capacitor strip smoother and solving the problem of uneven surface of the high-temperature resistant soft cotton 123. One end of the DC power supply contacts the upper cover assembly 1, which in turn leads the DC power to the conductive surface 1210 of the single-sided conductive film 121. The single-sided conductive film 121 makes contact with the upper end 51 of a certain number of capacitor strips to be aged, which are vertically placed on the lower support assembly 2 with positioning grooves 221. (The upper end 51 is the entire product that was connected together in the previous process, cut and separated into individual pieces from the negative or positive side of the capacitor.) The other end of the DC power supply contacts the lower support assembly 2 with positioning grooves 221, and then makes contact with the lower end 52 of the capacitor strips. The positioning structure 22 plays a positioning role to prevent the capacitor strips from shifting left or right. At this time, both the upper and lower sides of each capacitor on the capacitor strip are energized, thus allowing the capacitors to be aged. In this embodiment of the invention, the single-sided conductive film 121 of the aging fixture will burn out during the aging process of short-circuited or high-current products, thus disconnecting the aging circuit and ensuring the aging effect.

[0042] It should be noted that the aging fixture of this utility model can be placed on an existing conventional room-temperature aging rack for room-temperature aging of capacitors, or it can be placed on an existing conventional aging rack in an oven for high-temperature aging of capacitors. Therefore, all components of the aging fixture of this utility model are made of high-temperature resistant materials. The specific materials are not described or limited, but are high-temperature resistant materials well known to those skilled in the art. The specific temperature of the high temperature is not limited. It should be noted that "high temperature" here is not the unclear category described in the Patent Law and the Patent Examination Guidelines, but rather refers to the temperature relative to "room temperature" mentioned above. Moreover, the specific temperature of the high temperature here is the high-temperature aging temperature well known to those skilled in the art, typically in the range of 75~150°C, with the specific temperature set according to the characteristics of the capacitor product.

[0043] Example 2

[0044] This embodiment provides an aging device 100, see [link / reference] Figure 9 This includes the aging fixture 10 for capacitor aging process described in Embodiment 1 above, as well as some conventional structures such as an aging rack 20 for placing the aging fixture 10 and an aging power supply (not shown) for the operation of the aging fixture 10. An exemplary aging rack 20 is a multi-layer structure formed by multiple crossbeams and longitudinal beams (the specific number is not described or limited, and is selected and designed according to actual needs). Figure 9The exemplary embodiment has a frame structure with 6 layers, each layer of which can accommodate two aging fixtures 10. The aging power supply is not specifically described and is a conventional DC programmable power supply; its quantity is configured according to actual conditions, preferably matching the number of aging fixtures 10 that can be placed on the aging rack 10, and is not specifically limited. Other conventional structures, such as the fixing structure for fixing the aging fixtures 10 (not shown), and their specific structural features are not specifically described or limited here, and are not innovations of this utility model. Since it possesses the aging fixtures 10 of Embodiment 1, the aging device 100 of this embodiment at least has the beneficial effects of the aging fixtures 10 of Embodiment 1, and will not be elaborated upon here.

[0045] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An aging fixture for capacitor aging processes, characterized in that, include: The lower support assembly is adapted to make contact with one end of the power supply and conduct electricity. It is provided with several positioning structures for vertically placing the capacitor strips to be aged. The positioning structures are conductive. The top cover assembly is adapted to make contact with the other end of the power supply and conduct electricity, and one end face of it facing the support assembly is conductive; A snap-fit ​​structure is adapted to be disposed on one of the lower support assembly or the upper cover assembly, the other of the lower support assembly or the upper cover assembly having a snap-fit ​​portion that matches the snap-fit ​​structure, at least the snap-fit ​​structure being insulated; The upper cover assembly is adapted to be pressed onto the lower support assembly by the fastening structure and the fastening part, so that the power supply applies power to the upper and lower ends of the capacitor strip to be aged through the conductive end face and the conductive positioning structure of the upper cover assembly, respectively.

2. The aging fixture for capacitor aging process according to claim 1, characterized in that, The positioning structure includes a plurality of downwardly recessed positioning grooves arranged in an array on the upper end surface of the lower support component.

3. The aging fixture for capacitor aging process according to claim 1, characterized in that, The top cover assembly includes a U-shaped top cover body and a conductive structure disposed on the lower end surface of the top cover body. The conductive structure includes an outer single-sided conductive film and an inner buffer component, wherein the outer surface of the single-sided conductive film is conductive.

4. The aging fixture for capacitor aging process according to claim 3, characterized in that, The cushioning component includes high-temperature resistant soft cotton.

5. The aging fixture for capacitor aging process according to claim 4, characterized in that, The cushioning component also includes a high-temperature resistant wrapping film wrapped around the high-temperature resistant soft cotton.

6. The aging fixture for capacitor aging process according to any one of claims 3-5, characterized in that, The lower support assembly includes a lower support plate and a positioning structure disposed on the lower support plate, wherein both sides of the lower support plate extend beyond the positioning structure to form the fastening portion. The upper cover body has two sides with downwardly bent portions. The bottom of the inner side of each bent portion is provided with a fastening structure, and the bottom of the fastening structure extends at least partially below the corresponding bent portion. The inner side of each fastening structure has a slot facing inward and can be fastened with the corresponding fastening portion.

7. The aging fixture for capacitor aging process according to claim 6, characterized in that, The bottom inner side of any of the fastening parts extends obliquely from bottom to top toward the inner side of the corresponding bending part until it is flush with the bottom end face of the corresponding fastening groove.

8. The aging fixture for capacitor aging process according to claim 6, characterized in that, The length of the bottom end face of the groove is shorter than the length of the top end face.

9. The aging fixture for capacitor aging process according to claim 6, characterized in that, Each of the aforementioned fastening structures is detachably connected to the corresponding bend via fasteners.

10. An aging device, characterized in that, Includes the aging fixture for capacitor aging process as described in any one of claims 1-9.

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