Aging framed bent of aluminum electrolytic capacitor

By setting a negative electrode strip in the aging rack of aluminum electrolytic capacitors and using a third sleeper to press the outer shell to contact the negative electrode, the problem of short circuit arcing during the aging process was solved, and the product yield was improved.

CN223513817UActive Publication Date: 2025-11-04YIYANG WANJINGYUAN ELECTRONICS
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Patent Information

Application Number
CN202422616139.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-11-04
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

Existing aluminum electrolytic capacitor aging racks are prone to internal short circuits and arcing during the aging process, leading to a decrease in yield.

Method used

An aging rack for aluminum electrolytic capacitors was designed. By setting negative electrode strips on negative electrode sleepers, and pressing the aluminum electrolytic capacitor shell downwards through a third sleeper during the aging process, the shell comes into contact with the negative electrode strips, forming a negative electrode connection and reducing the internal capacitance density.

Benefits of technology

This reduces short-circuit arcing during the aging process and improves product yield.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223513817U_ABST
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Abstract

The aging framed bent of the aluminum electrolytic capacitor comprises a positive sleeper, a negative sleeper, a third sleeper, isolation wood, a positive electric strip and a negative electric strip, the positive pole sleeper and the negative pole sleeper are oppositely arranged, the isolation wood is arranged between the positive pole sleeper and the negative pole sleeper, the positive pole electric strip is fixedly arranged on the positive pole sleeper, the negative pole electric strip is fixedly arranged on the negative pole sleeper or the third sleeper, and the negative pole electric strip is in contact with a shell of the aluminum electrolytic capacitor for electrification; and the third sleeper is arranged above the isolation wood. According to the aging bent frame of the aluminum electrolytic capacitor, the negative electrode electric strip is contacted with the shell, and the shell serves as a negative electrode during aging, so that the capacity density in the capacitor in the aging process can be reduced, the phenomenon of short circuit sparking in the aging process is reduced, and the yield of products is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of production equipment of aluminum electrolytic capacitor, especially a kind of aging rack of aluminum electrolytic capacitor. BACKGROUND

[0002] In the production process of aluminum electrolytic capacitor, the cutting section of anode foil is without oxide film;At the same time in the production process, the surface of the surface of anode foil can also appear broken state, which needs to be repaired in aging process.In aging process, the voltage of aging is lower than the rated voltage of anode foil, so as to prevent the phenomenon of short circuit.

[0003] The current aging rack of aluminum electrolytic capacitor, as shown in Figure 1 The anode needle is in contact with the anode strip of the rack, and the cathode needle is in contact with the cathode strip.When the aging voltage reaches the preset value, the aluminum electrolytic capacitor is only connected through the cathode needle, so that the capacity density in the capacitor is high during aging, and the phenomenon of internal short circuit of capacitor core package is easy to appear before aging is completed, thereby reducing the yield of aluminum electrolytic capacitor. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide an aging rack of aluminum electrolytic capacitor.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows: 1, an aging rack of aluminum electrolytic capacitor, comprising positive pole sleeper, negative pole sleeper, third sleeper, isolation wood, positive pole strip and negative pole strip;The positive pole sleeper and the negative pole sleeper are oppositely arranged, and the isolation wood is arranged between the positive pole sleeper and the negative pole sleeper;The positive pole strip is fixedly arranged on the positive pole sleeper, and the negative pole strip is fixedly arranged on the negative pole sleeper or the third sleeper;The negative pole strip is in contact with the shell of the aluminum electrolytic capacitor for power supply;The third sleeper is arranged above the isolation wood.

[0006] The above-mentioned aging rack of aluminum electrolytic capacitor is preferably arranged on the side and top of the negative pole sleeper opposite to the positive pole strip;The third sleeper is arranged above the isolation wood, and forms downward extrusion to the shell of the aluminum electrolytic capacitor.

[0007] The above-mentioned aging rack of aluminum electrolytic capacitor is preferably arranged on the side and top of the negative pole sleeper opposite to the positive pole strip;The third sleeper is arranged above the isolation wood, and forms downward extrusion to the shell of the aluminum electrolytic capacitor.

[0008] The above-mentioned aging rack of aluminum electrolytic capacitor is preferably arranged on the side and top of the negative pole sleeper opposite to the positive pole strip;The third sleeper is arranged above the isolation wood, and forms downward extrusion to the shell of the aluminum electrolytic capacitor.

[0009] The aluminum electrolytic capacitor aging rack, preferably, the negative electrode strip is fixedly arranged on the lower part of the third sleeper, and the negative electrode strip is in contact with the shell of the aluminum electrolytic capacitor for conducting electricity.

[0010] The aluminum electrolytic capacitor aging rack, preferably, the negative electrode strip is fixedly arranged on the lower part of the third sleeper, and the negative electrode strip is in contact with the shell of the aluminum electrolytic capacitor for conducting electricity.

[0011] The aluminum electrolytic capacitor aging rack, preferably, the negative electrode strip is fixedly arranged on the lower part of the third sleeper, and the negative electrode strip is in contact with the shell of the aluminum electrolytic capacitor for conducting electricity.

[0012] Compared with the prior art, the aluminum electrolytic capacitor aging rack has the advantages that the negative electrode strip is in contact with the shell, the shell acts as a negative electrode during aging, the capacity density inside the capacitor during the aging process can be reduced, the phenomenon of short-circuit sparking during the aging process is reduced, and the yield of products is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the traditional aging rack in the background art.

[0014] Figure 2 It is a structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 1.

[0015] Figure 3 It is a sectional structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 1.

[0016] Figure 4 It is a structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 2.

[0017] Figure 5 It is a sectional structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 2.

[0018] Figure 6 It is a structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 3.

[0019] Figure 7 It is a sectional structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 3.

[0020] Figure 8 It is a structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 3.

[0021] Figure 9 It is a sectional structural schematic view of the aluminum electrolytic capacitor aging rack in embodiment 3.

[0022] LEGEND

[0023] 1. Positive electrode sleeper; 2. Negative electrode sleeper; 3. Isolating block; 4. Positive electrode strip; 5. Negative electrode strip; 6. Third sleeper; 7. Extrusion block; 8. Screw; 9. First connecting block; 10. Second connecting block; 11. Bolt; 12. Anode guide pin; 13. Cathode guide pin; 14. Outer casing. Detailed Implementation

[0024] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0025] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0026] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention. Example 1

[0027] like Figure 2 The aging rack for the aluminum electrolytic capacitor shown includes a positive electrode sleeper 1, a negative electrode sleeper 2, a third sleeper 6, an isolation block 3, a positive electrode strip 4, and a negative electrode strip 5. The positive electrode sleeper 1 and the negative electrode sleeper 2 are arranged opposite each other, the isolation block 3 is arranged between the positive electrode sleeper 1 and the negative electrode sleeper 2, the positive electrode strip 4 is fixedly arranged on the positive electrode sleeper 1, and the negative electrode strip 5 is fixedly arranged on the negative electrode sleeper 2 and the third sleeper 6. The negative electrode strip 5 is in contact with the outer shell 14 of the aluminum electrolytic capacitor and is energized. The third sleeper 6 is arranged above the isolation block 3.

[0028] In this embodiment, the negative electrode strip 5 is fixedly disposed on the side and top of the negative electrode sleeper 2 relative to the positive electrode strip 4. The negative electrode strip 5 is embedded in the top of the negative electrode sleeper 2, and the top surface of the negative electrode strip 5 is on the same horizontal plane as the top surface of the positive electrode sleeper 1. The third sleeper 6 is disposed above the insulating wood 3, forming a downward compression on the outer shell 14 of the aluminum electrolytic capacitor. The lower part of the third sleeper 6 is provided with a compression block 7, which can be made of soft rubber, foam, etc.

[0029] In this embodiment, the positive electrode sleeper 1, the negative electrode sleeper 2 and the isolation sleeper 3 are connected by the screw rod 8 and the butterfly nut (not shown in the figure). During the aging, the butterfly nut is screwed on the screw rod 8 so that the positive electrode sleeper 1 and the negative electrode sleeper 2 respectively clamp the anode lead pin 12 and the cathode lead pin 13 of the aluminum electrolytic capacitor on the isolation sleeper 3.

[0030] In this embodiment, the aluminum electrolytic capacitor is not sleeved during the aging, and the shell 14 of the aluminum electrolytic capacitor is made of aluminum and is conductive. In this embodiment, the third sleeper 6 presses downward on the aluminum electrolytic capacitor so that the crimped part of the shell 14 of the aluminum electrolytic capacitor is in contact with the negative electrode strip 5 at the top of the negative electrode sleeper 2, thereby being electrically connected.

[0031] In this embodiment, in order to strengthen the contact between the negative electrode strip 5 and the shell 14, the negative electrode strip 5 is arranged on the extrusion block 7. When the third sleeper 6 presses downward on the aluminum electrolytic capacitor, the negative electrode strip 5 on the extrusion block 7 is in contact with the bottom of the shell 14, thereby being electrically connected. Thus, there are two points on the shell 14 that are electrically connected to the negative electrode, thereby ensuring that the shell 14 is connected to the negative electrode during the aging.

[0032] In this embodiment, when the third sleeper 6 presses downward on the bottom of the shell 14 of the aluminum electrolytic capacitor, the extrusion block 7 is made of soft rubber or soft material such as foam, so that excessive force is not applied to the bottom of the shell 14. At the same time, after the aluminum electrolytic capacitor is installed on the shelf, the bottom of the shell 14 of the aluminum electrolytic capacitor cannot be completely on a horizontal plane, and there will always be a small height difference. The soft extrusion block 7 in this embodiment can ensure that the bottom of the shell 14 is in contact with the negative electrode strip 5 on the extrusion block 7.

[0033] In this embodiment, as shown in Figure 3 , the third sleeper 6 presses downward on the aluminum electrolytic capacitor by the first connecting block 9 on the third sleeper 6 and the second connecting block 10 arranged on the positive electrode sleeper 1 and the negative electrode sleeper 2. The first connecting block 9 and the second connecting block 10 are connected by the bolt 11.

[0034] The aging shelf of the aluminum electrolytic capacitor in this embodiment is characterized in that the negative electrode strip 5 is not only electrically connected to the cathode lead pin 13, but also in contact with the shell 14. During the aging, the shell 14 also acts as a negative electrode, which can reduce the capacity density inside the capacitor during the aging process, thereby reducing the phenomenon of short-circuit sparking during the aging process and improving the yield of the product. Embodiment 2

[0035] In this embodiment, as shown in Figure 4 and Figure 5The shown aging rack of aluminum electrolytic capacitor, negative electrode strip 5 is only fixedly arranged on the side of negative electrode sleeper 2 opposite to positive electrode strip 4, and the top of negative electrode sleeper 2 is not provided with negative electrode strip 5; other parts of the embodiment are the same as those of embodiment 1. In the embodiment, the electrical connection point between negative electrode strip 5 and shell 14 is only the electrical connection of negative electrode strip 5 on third sleeper 6 and the bottom of shell 14. Embodiment 3

[0036] In the embodiment, the shown aging rack of aluminum electrolytic capacitor, negative electrode strip 5 is only fixedly arranged on the side of negative electrode sleeper 2 opposite to positive electrode strip 4, and the top of negative electrode sleeper 2 is not provided with negative electrode strip 5; other parts of the embodiment are the same as those of embodiment 1. In the embodiment, the electrical connection point between negative electrode strip 5 and shell 14 is only the electrical connection of negative electrode strip 5 on third sleeper 6 and the bottom of shell 14. Figure 6 and Figure 7 The shown aging rack of aluminum electrolytic capacitor, negative electrode strip 5 is only fixedly arranged on the side of negative electrode sleeper 2 opposite to positive electrode strip 4, and the top of negative electrode sleeper 2 is not provided with negative electrode strip 5; other parts of the embodiment are the same as those of embodiment 1. In the embodiment, the electrical connection point between negative electrode strip 5 and shell 14 is only the electrical connection of negative electrode strip 5 on third sleeper 6 and the bottom of shell 14. Embodiment 4

[0037] In the embodiment, the shown aging rack of aluminum electrolytic capacitor, negative electrode strip 5 is only fixedly arranged on the side of negative electrode sleeper 2 opposite to positive electrode strip 4, and the top of negative electrode sleeper 2 is not provided with negative electrode strip 5; other parts of the embodiment are the same as those of embodiment 1. In the embodiment, the electrical connection point between negative electrode strip 5 and shell 14 is only the electrical connection of negative electrode strip 5 on third sleeper 6 and the bottom of shell 14. Figure 8 and Figure 9 The shown aging rack of aluminum electrolytic capacitor, negative electrode strip 5 is only fixedly arranged on the side of negative electrode sleeper 2 opposite to positive electrode strip 4, and the top of negative electrode sleeper 2 is not provided with negative electrode strip 5; other parts of the embodiment are the same as those of embodiment 1. In the embodiment, the electrical connection point between negative electrode strip 5 and shell 14 is only the electrical connection of negative electrode strip 5 on third sleeper 6 and the bottom of shell 14.

Claims

1. An aging rack for aluminum electrolytic capacitors, characterized by: The application relates to a positive electrode sleeper, a negative electrode sleeper, a third sleeper, a spacer sleeper, a positive electrode strip and a negative electrode strip; the positive electrode sleeper and the negative electrode sleeper are oppositely arranged, the spacer sleeper is arranged between the positive electrode sleeper and the negative electrode sleeper, the positive electrode strip is fixedly arranged on the positive electrode sleeper, the negative electrode strip is fixedly arranged on the negative electrode sleeper or the third sleeper, the negative electrode strip is in contact with the shell of an aluminum electrolytic capacitor and is electrified, and the third sleeper is arranged above the spacer sleeper and forms downward extrusion to the shell of the aluminum electrolytic capacitor.

2. The aging rack for aluminum electrolytic capacitors according to claim 1, characterized in that: The negative electrode strip is fixedly arranged on the side and the top of the negative electrode sleeper opposite to the positive electrode strip; the third sleeper is arranged above the spacer sleeper and forms downward extrusion to the shell of the aluminum electrolytic capacitor.

3. The aging rack for aluminum electrolytic capacitors according to claim 2, characterized in that: The lower part of the third sleeper is provided with an extrusion block.

4. The aging rack for aluminum electrolytic capacitors according to claim 3, characterized in that: The extrusion block is provided with the negative electrode strip.

5. The aging rack for aluminum electrolytic capacitors according to claim 1, characterized in that: The negative electrode strip is fixedly arranged on the lower part of the third sleeper, and the negative electrode strip is in contact with the shell of the aluminum electrolytic capacitor and is electrified.

6. The aging rack for aluminum electrolytic capacitors according to claim 5, characterized in that: An extrusion block is arranged between the negative electrode strip and the third sleeper, and the negative electrode strip is fixedly arranged on the extrusion block.

7. The aging rack for aluminum electrolytic capacitors according to any one of claims 1 to 6, characterized in that: A first connecting block is arranged on the third sleeper, a second connecting block is arranged on the positive electrode sleeper or / and the negative electrode sleeper, and the first connecting block and the second connecting block are connected through bolts.