Aluminum electrolytic capacitor lead terminal

Abstract

The utility model discloses an aluminum electrolytic capacitor lead-out terminal, including aluminum electrolytic capacitor body, connecting cover, pressboard and multiple pins, the one end of aluminum electrolytic capacitor body is convex and thickened and forms the connecting terminal of with the connection of positive pole and negative pole, is equipped with the positioning slot all on wiring terminal, the one end of pin is all convex and forms the compression part, the inner side surface of compression part is all convex and forms the positioning part, and the positioning part all inserts into the positioning slot and sets up, and the outside of aluminum electrolytic capacitor body is equipped with fixed sleeve, and connecting cover sleeve sets up in the one end of aluminum electrolytic capacitor body, and is set up with fixed sleeve screw connection, and one end of connecting sleeve is equipped with mounting hole, and the pressboard is equipped with multiple wiring holes, and the pressboard is set up on pin through wiring hole, and is set up in the movable mounting of mounting hole, and multiple pieces of the heat dissipation fin leaf that will connecting cover position are installed on fixed sleeve, the utility model discloses simple structure has realized the replaceability of pin, the reliability of connection, the convenience of operation and good heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to an aluminum electrolytic capacitor lead terminal. Background Technology

[0002] A capacitor consists of two electrodes and a dielectric material between them. The dielectric material is an electrical dielectric. When placed in an electric field between two parallel plates carrying equal amounts of opposite charges, polarization generates polarization charges on the surface of the dielectric, thereby increasing the charge bound to the plates and maintaining a constant potential difference between the plates.

[0003] However, during use, it is found that the leads of aluminum electrolytic capacitors are integrated with the capacitor body. As a result, if the leads are exposed and damaged, they cannot be replaced. Instead, the entire capacitor must be replaced, which increases costs and affects maintenance. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an aluminum electrolytic capacitor lead terminal with independent pin and connection terminal configuration, which allows for the replacement of exposed pins, while the internal connection terminals are protected by pressure plates and connection covers, thereby solving the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an aluminum electrolytic capacitor lead terminal, including an aluminum electrolytic capacitor body, a connecting cover, a pressure plate, and multiple leads. One end of the aluminum electrolytic capacitor body protrudes and is thickened to form a connecting terminal for connection with the positive and negative terminals. Each terminal is provided with a positioning groove. One end of each lead protrudes to form a pressure receiving part. The inner side of the pressure receiving part protrudes to form a positioning part. The positioning parts are all inserted into the positioning groove. A fixing sleeve is installed on the outside of the aluminum electrolytic capacitor body. The connecting cover is sleeved on one end of the aluminum electrolytic capacitor body and threadedly connected to the fixing sleeve. One end of the connecting sleeve is provided with a mounting hole. The pressure plate is provided with multiple wiring holes. The pressure plate is sleeved on the leads through the wiring holes and is movably installed in the mounting holes. Multiple heat dissipation fins are installed on the fixing sleeve to position the connecting cover.

[0006] As a preferred technical solution, multiple vertical plates arranged in a ring structure are installed at the end of the fixed sleeve away from the connecting cover. One end of each heat dissipation fin is installed on the vertical plate by a torsion spring hinge. One side of each heat dissipation fin is fitted to the outer side of the vertical plate. The other end of the connecting cover is provided with a limiting groove opposite the heat dissipation fin. One end of each heat dissipation fin protrudes to form a limiting part, which is inserted into the limiting groove. The other end of each heat dissipation fin protrudes to form an operating part.

[0007] As a preferred technical solution, the pressure plate is made of insulating plastic material, and an annular groove is provided on the inner ring surface of the mounting hole. A connecting part with an annular structure protrudes from the outer ring surface of the pressure plate, and the connecting part is slidably disposed in the annular groove.

[0008] As a preferred technical solution, the connecting sleeve, fixing sleeve, and vertical plate are all made of metal.

[0009] As a preferred technical solution, the inner side of the pressure plate is arranged to abut against the surface of the pressure-bearing part, and the inner diameter of the wiring hole is set smaller than the diameter of the pressure-bearing part.

[0010] As a preferred technical solution, both the positioning groove and the positioning part have polygonal cross-sections.

[0011] As a preferred technical solution, the outer ring surface of the fixing sleeve is provided with external threads, and the inner ring surface of the connecting cover is provided with internal threads. The connecting cover is engaged with the external threads on the internal thread fixing sleeve.

[0012] The beneficial effects of this utility model are as follows: This utility model has a simple structure, with the pins and connecting terminals set independently. The exposed pins can be replaced by setting them independently, while the internal connecting terminals are protected by the pressure plate and connecting cover, which increases safety. Furthermore, the connecting cover can quickly press and position the inserted pins on the connecting terminals, increasing the convenience of replacement. The heat dissipation fins can increase the heat dissipation effect of the aluminum electrolytic capacitor body, and the heat dissipation fins can also position the connecting cover, preventing the connecting cover from rotating on its own and causing loosening between the pins and connecting terminals, thus increasing practicality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after removing the pressure plate and any pins; Figure 3 This is a schematic diagram of the structure of the pressure plate and pins of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model after removing any heat dissipation fins.

[0015] The components include: 1. Aluminum electrolytic capacitor body; 2. Fixing sleeve; 3. Connecting cover; 4. Pressure plate; 5. Wiring hole; 6. Pin; 7. Vertical plate; 8. Heat dissipation fins; 9. Limiting part; 10. Operating part; 11. Annular groove; 12. Connecting terminal; 13. Positioning groove; 14. Pressure-bearing part; 15. Positioning part; 16. Connecting part; 17. Limiting groove. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0018] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses an aluminum electrolytic capacitor lead terminal, comprising an aluminum electrolytic capacitor body 1, a connecting cover 3, a pressure plate 4, and multiple leads 6. One end of the aluminum electrolytic capacitor body 1 protrudes and is thickened to form a connecting terminal 12 connected to the positive and negative terminals. Each terminal is provided with a positioning groove 13. One end of each lead 6 protrudes to form a pressure receiving part 14. The inner side of each pressure receiving part 14 protrudes to form a positioning part 15. The positioning parts 15 are all inserted into the positioning groove 13. A fixing sleeve 2 is installed on the outside of the aluminum electrolytic capacitor body 1. The connecting cover 3 is sleeved on one end of the aluminum electrolytic capacitor body 1 and threadedly connected to the fixing sleeve 2. One end of the connecting sleeve is provided with a mounting hole. The pressure plate 4 is provided with multiple wiring holes 5. The pressure plate 4 is sleeved on the leads 6 through the wiring holes 5 and is movably installed in the mounting holes. Multiple heat dissipation fins 8 are installed on the fixing sleeve 2 to position the connecting cover 3.

[0020] In this embodiment, a number of vertical plates 7 arranged in a ring structure are installed on the end of the fixed sleeve 2 away from the connecting cover 3. One end of each heat dissipation fin 8 is installed on the vertical plate 7 by a torsion spring hinge. One side of each heat dissipation fin 8 is fitted to the outer side of the vertical plate 7. The other end of the connecting cover 3 is provided with a limiting groove 17 opposite to the heat dissipation fin 8. One end of each heat dissipation fin 8 protrudes to form a limiting part 9. The limiting part 9 is inserted into the limiting groove 17. The other end of each heat dissipation fin 8 protrudes to form an operating part 10. In this process, after the operating part is pressed towards the center of the aluminum electrolytic capacitor body, the heat dissipation fins can rotate around the torsion spring hinge, and the limiting part at the other end can move out of the limiting groove, allowing the connecting cover to rotate freely.

[0021] In this embodiment, the pressure plate 4 is made of insulating plastic material, and an annular groove 11 is provided on the inner ring surface of the mounting hole. A connecting part 16 with an annular structure protrudes from the outer ring surface of the pressure plate 4, and the connecting part 16 is slidably disposed in the annular groove 11.

[0022] In this embodiment, the connecting sleeve, the fixing sleeve 2, and the vertical plate 7 are all made of metal, which increases the sturdiness.

[0023] In this embodiment, the inner side of the pressure plate 4 is arranged to abut against the surface of the pressure-receiving part 14, and the inner diameter of the wiring hole 5 is smaller than the diameter of the pressure-receiving part 14, so that the pressure plate can press the pressure-receiving part. The pin, the pressure-receiving part and the positioning part are integrally injection molded, so that they can be fully electrically connected to the connection terminal.

[0024] In this embodiment, the cross-sections of both the positioning groove 13 and the positioning part 15 are polygonal to prevent the pins from rotating and to ensure positioning quality.

[0025] In this embodiment, the outer ring surface of the fixing sleeve 2 is provided with external threads, and the inner ring surface of the connecting cover 3 is provided with internal threads. The connecting cover 3 is connected by the external threads on the internal thread fixing sleeve 2. The threaded connection facilitates the installation and disassembly of the connecting cover.

[0026] Working principle: When installing or replacing pins, first align the positioning part at one end of the pin with the positioning slot on the connecting terminal and insert it to achieve initial electrical connection and mechanical positioning between the pin and the connecting terminal. Then, place the pressure plate over each pin through its wiring holes.

[0027] Next, the connecting cover is placed on one end of the aluminum electrolytic capacitor body and screwed onto the fixing sleeve. During the tightening of the connecting cover, it pushes the pressure plate towards the aluminum electrolytic capacitor body. The pressure plate transmits force to the pressure-bearing portion of the pin, and the inner side of the pressure plate contacts the pressure-bearing portion on the pin, thus firmly pressing the positioning portion into the positioning groove. This ensures a stable connection between the pin and the connecting terminal. Simultaneously, the connecting portion of the outer ring of the pressure plate slides within the annular groove of the connecting cover, preventing the pin from rotating.

[0028] After the connecting cover is tightened to the predetermined position, the heat dissipation fins are rotated by the torsion spring hinge until the limiting part at the other end of the heat dissipation fins is engaged in the corresponding limiting groove of the connecting cover. This operation locks the position of the connecting cover with the heat dissipation fins to prevent it from loosening on its own due to vibration or other reasons. On the other hand, the heat dissipation fins increase the heat dissipation area, which helps to dissipate the heat generated by the aluminum electrolytic capacitor body during operation.

[0029] When pins need to be replaced, simply press the operating part of the heat sink fins inward to disengage the limiting part from the limiting groove. Then, unscrew the connecting cover in the opposite direction, remove the pressure plate, pull out the damaged pin, replace it with a new pin, and reassemble it following the steps above. Throughout the process, the internal connecting terminals of the aluminum electrolytic capacitor are always protected by the pressure plate and connecting cover, making them less prone to damage. Exposed pins can be replaced independently without scrapping the entire capacitor, reducing maintenance costs.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A lead-out terminal for an aluminum electrolytic capacitor, characterized in that: The device includes an aluminum electrolytic capacitor body (1), a connecting cover (3), a pressure plate (4), and multiple leads (6). One end of the aluminum electrolytic capacitor body (1) protrudes and is thickened to form a connecting terminal (12) for connecting to the positive and negative terminals. Each terminal is provided with a positioning groove (13). One end of each lead (6) protrudes to form a pressure receiving part (14). A positioning part (15) protrudes from the inner side of the pressure receiving part (14). Each positioning part (15) is inserted into the positioning groove (13). A fixing sleeve (2) is installed on the outside of the aluminum electrolytic capacitor body (1). A connecting cover (3) is fitted onto one end of the aluminum electrolytic capacitor body (1) and threadedly connected to the fixing sleeve (2). One end of the connecting sleeve is provided with an installation hole. A pressure plate (4) is provided with multiple wiring holes (5). The pressure plate (4) is fitted onto the pin (6) through the wiring holes (5) and is movably installed in the installation hole. A number of heat dissipation fins (8) are installed on the fixing sleeve (2) to position the connecting cover (3).

2. The aluminum electrolytic capacitor lead-out terminals according to claim 1, characterized in that: The fixed sleeve (2) is equipped with a number of vertical plates (7) arranged in a ring structure at the end away from the connecting cover (3). One end of each heat dissipation fin (8) is installed on the vertical plate (7) by a torsion spring hinge. One side of each heat dissipation fin (8) is fitted to the outer side of the vertical plate (7). The other end of the connecting cover (3) is provided with a limiting groove (17) opposite to the heat dissipation fin (8). One end of each heat dissipation fin (8) protrudes to form a limiting part (9). The limiting part (9) is inserted into the limiting groove (17). The other end of each heat dissipation fin (8) protrudes to form an operating part (10).

3. The lead-out terminals of the aluminum electrolytic capacitor according to claim 1, characterized in that: The pressure plate (4) is made of insulating plastic material. An annular groove (11) is provided on the inner ring surface of the mounting hole. A connecting part (16) with an annular structure protrudes from the outer ring surface of the pressure plate (4). The connecting part (16) is slidably disposed in the annular groove (11).

4. The lead-out terminals of the aluminum electrolytic capacitor according to claim 2, characterized in that: The connecting sleeve, the fixing sleeve (2) and the vertical plate (7) are all made of metal.

5. The lead-out terminals of the aluminum electrolytic capacitor according to claim 1, characterized in that: The inner side of the pressure plate (4) is in contact with the surface of the pressure-receiving part (14), and the inner diameter of the wiring hole (5) is smaller than the diameter of the pressure-receiving part (14).

6. The lead-out terminals of the aluminum electrolytic capacitor according to claim 1, characterized in that: The cross-sections of the positioning groove (13) and the positioning part (15) are both polygonal.

7. The lead-out terminals of the aluminum electrolytic capacitor according to claim 1, characterized in that: The outer ring of the fixing sleeve (2) is provided with external threads, and the inner ring of the connecting cover (3) is provided with internal threads. The connecting cover (3) is engaged with the external threads on the internal thread fixing sleeve (2).

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