Super capacitor with good sealing performance

Abstract

The utility model discloses a super capacitor with good sealing performance, and relates to the technical field of capacitors. According to the technical scheme, the aluminum shell is characterized by comprising an aluminum shell and a roll core arranged in the aluminum shell, a guide pin is arranged on the roll core, a rubber plug is arranged on the top of the roll core in the aluminum shell, a through hole for the guide pin to penetrate through is formed in the rubber plug, and a glue pouring sealing cover is formed on the surface of the rubber plug in the aluminum shell through glue pouring. The utility model aims to provide the super capacitor with good sealing performance.

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] Supercapacitors are a new type of energy storage device with capacities reaching thousands of farads and extremely high power density, making them suitable for applications requiring instantaneous high-current charging and discharging. Due to their advantages such as rapid charging and discharging capabilities, high specific power, and long cycle life, supercapacitors are currently widely used in automotive, aerospace, military, wind power generation, communications, and solar energy industries.

[0003] Existing supercapacitors typically seal the core inside an aluminum shell with a rubber stopper on top. However, to further prevent leakage, an outer shell is added on the outside of the aluminum shell and sealed with glue on top. But leakage can still occur between the top of the aluminum shell and the rubber stopper, thus affecting its subsequent performance.

[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, comprising an aluminum shell and a core disposed inside the aluminum shell, wherein a guide pin is disposed on the core, a rubber plug is disposed at the top of the core inside the aluminum shell, the rubber plug has a through hole for the guide pin to pass through, and a glue-filled sealing cap is formed on the surface of the rubber plug inside the aluminum shell by glue filling.

[0007] By adopting the above technical solution, during the production process, the rubber stopper is placed on top of the core, allowing the guide pin to pass through the perforation. Then, the core and the rubber stopper are placed inside the aluminum shell. Finally, through the potting process, a potting sealing layer is formed on top of the rubber stopper inside the aluminum shell. This improves both the sealing performance between the circumferential sidewall of the rubber stopper and the aluminum shell, and the sealing performance between the guide pin and the perforation, thereby effectively improving the overall sealing effect of the capacitor and reducing the occurrence of leakage.

[0008] The present invention is further configured such that: the aluminum shell is recessed inward on the periphery of the rubber stopper to form a waist groove, and the inner surface of the waist groove is pressed against the circumferential sidewall of the rubber stopper.

[0009] The top of the aluminum shell is bent inward to form a limiting part.

[0010] The surface of the rubber stopper is provided with a first positioning ring on the outside of the two perforations and a second positioning ring on the middle of the two perforations. The lower surface of the glue-filled sealing cap is formed with a first positioning groove and a second positioning groove corresponding to the first positioning ring and the second positioning ring.

[0011] The top of the first positioning ring and the second positioning ring are provided with horizontally positioned positioning rods.

[0012] This invention has the following advantages: During production, the rubber stopper is placed on top of the core, allowing the guide pin to pass through the perforation. Then, the core and the rubber stopper are placed inside the aluminum shell. Finally, through the glue-filling process, a glue-filling sealing layer is formed on top of the rubber stopper inside the aluminum shell. This improves the sealing performance between the circumferential sidewall of the rubber stopper and the aluminum shell, as well as the sealing performance between the guide pin and the perforation, thereby effectively improving the overall sealing performance of the capacitor and reducing the occurrence of leakage. Attached Figure Description

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

[0014] Figure 2 This is a cross-sectional structural diagram of this embodiment;

[0015] Figure 3 This is a schematic diagram of the rubber stopper in this embodiment.

[0016] Figure descriptions: 1. Aluminum shell; 2. Core; 3. Guide pin; 4. Rubber plug; 5. Perforation; 6. Glue-filled sealing cap; 7. Waist groove; 8. Limiting part; 9. First positioning ring; 10. Second positioning ring; 11. Positioning rod. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] 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.

[0019] As shown in the figure, a supercapacitor with good sealing performance includes an aluminum shell 1 and a core 2 disposed inside the aluminum shell 1. A guide needle 3 is disposed on the core 2. A rubber stopper 4 is disposed at the top of the core 2 inside the aluminum shell 1. The rubber stopper 4 has a through hole 5 for the guide needle 3 to pass through. A glue-filled sealing cap 6 is formed on the surface of the rubber stopper 4 inside the aluminum shell 1 by glue filling.

[0020] During production, the rubber stopper 4 is placed on top of the core 2, allowing the guide pin 3 to pass through the perforation 5. Then, the core 2 and the rubber stopper 4 are placed inside the aluminum shell 1. Finally, through the potting process, a potting sealing layer is formed on top of the rubber stopper 4 inside the aluminum shell 1. This improves the sealing performance between the circumferential sidewall of the rubber stopper 4 and the aluminum shell 1, as well as between the guide pin 3 and the perforation 5, thereby effectively improving the overall sealing effect of the capacitor and reducing the occurrence of leakage.

[0021] The aluminum shell 1 is recessed inward on the periphery of the rubber stopper 4 to form a waist groove 7. The inner surface of the waist groove 7 is pressed against the circumferential side wall of the rubber stopper 4 to ensure the stability of the rubber stopper 4 after installation and prevent it from moving upward during operation, which would affect the stability of the glue sealing layer.

[0022] The top of the aluminum shell 1 is bent inward to form a limiting part 8. After the core 2 and the rubber plug 4 are placed inside the aluminum shell 1, the limiting part 8 is formed by bending the top of the aluminum shell 1 inward. Then, the glue is poured in, so that the periphery of the top surface of the glue sealing layer abuts against the lower surface of the limiting part 8, thereby further improving the sealing performance and stability between the glue sealing cap 6 and the aluminum shell 1.

[0023] A first positioning ring 9 is provided on the outer side of the two perforations 5 on the surface of the rubber stopper 4, and a second positioning ring 10 is provided between the two perforations 5. A first positioning groove and a second positioning groove corresponding to the first positioning ring 9 and the second positioning ring 10 are formed on the lower surface of the glue-filling sealing cap 6. A horizontally positioned positioning rod 11 is provided on the top of the first positioning ring 9 and the second positioning ring 10 to increase the contact area between the rubber stopper 4 and the glue-filling sealing cap 6, and further improve the stability of the connection between the rubber stopper 4 and the glue-filling sealing cap 6.

[0024] 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: Includes an aluminum shell (1) and a core (2) disposed inside the aluminum shell (1). A guide pin (3) is disposed on the core (2). A rubber plug (4) is disposed at the top of the core (2) inside the aluminum shell (1). The rubber plug (4) has a through hole (5) for the guide pin (3) to pass through. A glue-filled sealing cap (6) is formed on the surface of the rubber plug (4) inside the aluminum shell (1) by glue filling. The surface of the rubber stopper (4) is provided with a first positioning ring (9) on the outside of the two perforations (5) and a second positioning ring (10) is provided between the two perforations (5). The lower surface of the glue-filled sealing cap (6) is formed with a first positioning groove and a second positioning groove corresponding to the first positioning ring (9) and the second positioning ring (10). The top of the first positioning ring (9) and the second positioning ring (10) are provided with horizontally positioned positioning rods (11).

2. The supercapacitor with good sealing performance according to claim 1, characterized in that: The aluminum shell (1) is recessed inward on the periphery of the rubber stopper (4) to form a waist groove (7), and the inner surface of the waist groove (7) is pressed against the circumferential sidewall of the rubber stopper (4).

3. A supercapacitor with good sealing performance according to claim 1, characterized in that: The top of the aluminum shell (1) is bent inward to form a limiting part (8).

Images