Super capacitor with good sealing property

Abstract

The utility model discloses a super capacitor with good sealing property relates to capacitor technical field. Its technical scheme main points are: including aluminium shell and the rubber plug of setting its top, the aluminium shell is recessed to the waist groove along the lateral side of rubber plug and forms, the rubber plug surface is equipped with the first recess, the first recess bottom is equipped with the through -slot of the needle of the through -setting, the first recess is formed with the sealed filling piece through the glue filling. The utility model discloses the purpose is to provide a super capacitor with good sealing property.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and more specifically, to a supercapacitor with good sealing performance. Background Technology

[0002] Capacitors are one of the most widely used electronic components in electronic devices, and are extensively used in circuits for DC blocking and AC passing, coupling, bypassing, filtering, tuning circuits, energy conversion, and control.

[0003] In the production process, existing capacitors are usually sealed with rubber stoppers at their openings. Because existing rubber stoppers require through holes for the guide pins to pass through, electrolyte can seep into the gap between the guide pins and the through holes during use, causing product leakage and reducing its service life.

[0004] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a supercapacitor with good sealing performance.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a supercapacitor with good sealing performance, including an aluminum shell and a rubber plug disposed on its top, wherein the aluminum shell is recessed inward along the periphery of the rubber plug to form a waist groove, the surface of the rubber plug is provided with a first groove, the bottom of the first groove is provided with a through groove for a guide needle to pass through, and a sealing filler is formed in the first groove by potting glue.

[0007] The present invention is further configured such that the height of the first groove is 1mm to 10mm.

[0008] The present invention is further configured such that: a second groove is provided at the center of the bottom of the first groove, and a plurality of limiting grooves are provided on the side wall of the rubber plug located in the second groove; the sealing filler includes a first filling block located in the first groove, a second filling block connected to the bottom of the first filling block and located in the second groove, and a limiting rod connected to the second filling block and located in the limiting groove.

[0009] The present invention is further configured such that: two limiting grooves are provided and placed on both sides of the bottom of the second groove, and they are inclined upwards to the outside, and their top ends are connected to both sides of the bottom of the first groove; the two ends of the limiting rod are respectively connected to the bottom of the second filling block and the bottom of the first filling block.

[0010] The present invention is further configured such that: an annular groove is formed on the inner wall of the periphery of the first groove, and the sealing filler includes a limiting ring disposed on the periphery of the first filling block and located in the annular groove.

[0011] The present invention is further configured such that: an annular groove is formed at the top of the first groove along its periphery, and the sealing filler also includes a sealing edge disposed at the top of the side wall of the first filling block.

[0012] The present invention has the following beneficial effects: the sealing filler formed by injecting glue into the first groove can effectively block the gap between the guide needle and the through groove, fundamentally blocking the electrolyte leakage path, significantly improving the sealing reliability of the capacitor, and thus extending the service life of the capacitor. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0014] Figure 2 This is a schematic cross-sectional view of the rubber stopper in this embodiment;

[0015] Figure 3 This is a three-dimensional structural diagram of the rubber stopper in this embodiment;

[0016] Figure 4 This is a schematic diagram of the sealing filler in this embodiment.

[0017] Figure descriptions: 1. Aluminum shell; 2. Rubber plug; 3. Waist groove; 4. First groove; 5. Through groove; 6. Sealing filler; 7. Second groove; 8. Limiting groove; 9. First filling block; 10. Second filling block; 11. Limiting rod; 12. Annular groove; 13. Limiting ring; 14. Annular groove; 15. Sealing edge. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0020] As shown in the figure, a supercapacitor with good sealing performance includes an aluminum shell 1 and a rubber plug 2 set on its top. The aluminum shell 1 is recessed inward along the periphery of the rubber plug 2 to form a waist groove 3. A first groove 4 is formed on the surface of the rubber plug 2. The height of the first groove 4 is 1-10mm. A through groove 5 is formed at the bottom of the first groove 4 to pass through the top of the rubber plug 2 for the guide needle to pass through. A sealing filler 6 is formed in the first groove 4 by potting glue.

[0021] The sealing filler 6 formed by injecting glue into the first groove 4 can effectively block the gap between the guide needle and the through groove 5, fundamentally blocking the electrolyte leakage path, significantly improving the sealing reliability of the capacitor, thereby extending the service life of the capacitor, and ensuring that the first groove 4 has a certain thickness, which ensures that there is enough space to accommodate the sealing glue to form an effective sealing layer, while avoiding the groove being too deep, affecting the structural strength or increasing the process difficulty, thus balancing the sealing effect and production feasibility.

[0022] A second groove 7 is provided at the center of the bottom of the first groove 4. The rubber plug 2 is provided with several limiting grooves 8 on the side wall of the second groove 7. The sealing filler 6 includes a first filling block 9 located in the first groove 4, a second filling block 10 connected to the bottom of the first filling block 9 and located in the second groove 7, and a limiting rod 11 connected to the second filling block 10 and located in the limiting groove 8.

[0023] By setting the second groove 7 and the limiting groove 8, the sealing filler 6 forms an interlocking structure consisting of the first filling block 9, the second filling block 10 and the limiting rod 11, which greatly improves the bonding force and anti-displacement ability between the sealing colloid and the rubber plug 2, and prevents the seal from failing due to vibration or temperature change.

[0024] Two limiting grooves 8 are provided and placed on both sides of the bottom of the second groove 7, and they are inclined upwards to the outside. Their top ends are connected to both sides of the bottom of the first groove 4. The two ends of the limiting rod 11 are respectively connected to the bottom of both sides of the second filling block 10 and the bottom of both sides of the first filling block 9.

[0025] The limiting groove 8 is tilted upward and connected to both sides of the bottom of the first groove 4, so that the limiting rod 11 forms an oblique tension structure after filling, which further enhances the fixing effect of the seal in the axial and radial directions, prevents the sealing glue from loosening or falling off, and when the glue is poured, the resin can flow downward from the top of the limiting groove 8, so as to smoothly form the limiting rod 11 that is fixedly connected to the first filling block 9 and the second filling block 10.

[0026] The inner wall of the first groove 4 has an annular groove 12, and the sealing filler 6 includes a limiting ring 13 disposed on the periphery of the first filling block 9 and located in the annular groove 12. By providing the annular groove 12 on the inner wall of the first groove 4 and forming the limiting ring 13 on the sealing filler 6, the sealing colloid is mechanically locked in the circumferential direction, effectively preventing circumferential displacement of the colloid and improving the integrity and stability of the sealing structure.

[0027] An annular groove 14 is formed at the top of the first groove 4 along its periphery. The sealing filler 6 also includes a sealing edge 15 disposed at the top of the side wall of the first filler block 9. The sealing edge is placed in the annular groove 14 to further block the path of electrolyte or gas escaping from the top edge and enhance the reliability of the sealing system.

[0028] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A supercapacitor with good sealing performance, characterized in that: It includes an aluminum shell (1) and a rubber plug (2) on its top. The aluminum shell (1) is recessed inward along the periphery of the rubber plug (2) to form a waist groove (3). The surface of the rubber plug (2) is provided with a first groove (4). The bottom of the first groove (4) is provided with a through groove (5) for the guide needle to pass through. A sealing filler (6) is formed in the first groove (4) by potting glue.

2. The supercapacitor with good sealing performance according to claim 1, characterized in that: The height of the first groove (4) is 1-10mm.

3. The supercapacitor with good sealing performance according to claim 1, characterized in that: A second groove (7) is provided at the center of the bottom of the first groove (4). The rubber plug (2) is provided with several limiting grooves (8) on the side wall of the second groove (7). The sealing filler (6) includes a first filling block (9) located in the first groove (4), a second filling block (10) connected to the bottom of the first filling block (9) and located in the second groove (7), and a limiting rod (11) connected to the second filling block (10) and located in the limiting groove (8).

4. A supercapacitor with good sealing performance according to claim 3, characterized in that: The limiting groove (8) has two sides placed on the bottom of the second groove (7) and is inclined upwards to the outside. Its top end is connected to the bottom of the first groove (4). The two ends of the limiting rod (11) are respectively connected to the bottom of the second filling block (10) and the bottom of the first filling block (9).

5. A supercapacitor with good sealing performance according to claim 4, characterized in that: The inner wall of the first groove (4) is provided with an annular groove (12), and the sealing filler (6) includes a limiting ring (13) disposed on the periphery of the first filling block (9) and located in the annular groove (12).

6. A supercapacitor with good sealing performance according to claim 5, characterized in that: The top of the first groove (4) is provided with an annular groove (14) along its periphery, and the sealing filler (6) also includes a sealing edge (15) disposed on the top of the side wall of the first filling block (9).

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