A high-capacity electrolytic capacitor

Abstract

This utility model relates to the field of electrical component technology, specifically a high-capacity electrolytic capacitor, including a high-capacity capacitor core with a multi-layered protective structure on its surface. This utility model provides the capacitor with high capacity through the high-capacity capacitor core; the explosion-proof shell in the multi-layered protective structure prevents serious damage from explosion when the internal pressure of the capacitor is abnormal; the buffer filler area, located between the explosion-proof shell and the outer wall of the high-capacity capacitor core, buffers external impacts and protects the core; an anti-corrosion coating is applied to the outer wall of the explosion-proof shell to enhance its corrosion resistance; terminals are connected to the positive and negative terminals of the high-capacity capacitor core for easy external circuit connection; threaded mounting holes are used to install the terminals, ensuring a stable connection; positive and negative markings are placed on the edge of the opening of each threaded mounting hole, making it easy for users to distinguish between the positive and negative terminals and thus correctly connect the circuit.

Description

Technical Field

[0001] This utility model relates to the field of electrical component technology, specifically to a high-capacity electrolytic capacitor. Background Technology

[0002] With the rapid development of electronic technology, high-capacity electrolytic capacitors, as indispensable key components in electronic devices, play a crucial role in ensuring stable circuit operation, improving energy efficiency, and extending service life. High-capacity electrolytic capacitors, with their advantages of high energy density, high power density, and long cycle life, are widely used in energy storage systems, power management, electric vehicles, and renewable energy generation. However, traditional high-capacity electrolytic capacitors have limited shell protection, making the internal core susceptible to damage from external impacts, affecting normal operation and lifespan. Furthermore, the lack of effective explosion-proof design means that excessive pressure generated internally due to a fault could lead to an explosion, posing a safety hazard. In addition, the poor corrosion resistance of the shell makes them prone to corrosion in harsh environments, resulting in performance degradation. Utility Model Content

[0003] The purpose of this invention is to provide a high-capacity electrolytic capacitor to solve the problem of insufficient protection performance of existing high-capacity electrolytic capacitors mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-capacity electrolytic capacitor includes a high-capacity capacitor core, the surface of which is provided with a multi-layer protective structure, and the top surface of which is provided with terminals respectively connected to the positive and negative terminals of the high-capacity capacitor core.

[0006] The multi-layer protective structure includes an explosion-proof shell, a buffer filler area is provided between the explosion-proof shell and the outer wall of the high-capacity capacitor core, and an anti-corrosion coating is applied to the outer wall of the explosion-proof shell.

[0007] The top surface of the multi-layer protective structure is provided with threaded mounting holes for installing terminals, and each threaded mounting hole has a positive and negative marking on its opening edge to distinguish between the positive and negative terminals.

[0008] Preferably, the buffer filling area is made of polyacrylamide gel particles or rubber particles, and the width of the buffer filling area is 1-3 mm.

[0009] Preferably, the top outer wall of the multi-layer protective structure is provided with a capacitive display screen for displaying the percentage of remaining capacitance of the high-capacity capacitor core.

[0010] Preferably, the outer wall of the multi-layer protective structure is equipped with a data display label for indicating the maximum capacitance and rated voltage of the high-capacity capacitor core.

[0011] Preferably, the bottom of the terminal block is coaxially mounted with a mounting post that is compatible with the size of the threaded mounting hole and is threadedly connected.

[0012] Preferably, the top of the terminal block is fitted with a connecting ring for connecting external wires.

[0013] Preferably, the outer wall of the terminal block is made of different colors or different sizes to distinguish between the positive and negative terminals.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] This high-capacity electrolytic capacitor features a high-capacity inner core that provides the basic performance of high capacity. The explosion-proof shell in its multi-layered protective structure prevents serious damage from explosions caused by abnormal internal pressure. A buffer filler area located between the explosion-proof shell and the outer wall of the high-capacity inner core buffers external impacts and protects the inner core. An anti-corrosion coating on the outer wall of the explosion-proof shell enhances its corrosion resistance and extends the capacitor's lifespan. Terminals connect to the positive and negative terminals of the high-capacity inner core for easy external circuit connection. Threaded mounting holes ensure a secure connection. Positive and negative markings are located at the edge of each threaded mounting hole opening, allowing users to easily distinguish between the positive and negative terminals and correctly connect the circuit. These features combined result in a high-capacity electrolytic capacitor with excellent performance, reliability, long service life, and ease of use.

[0016] In this high-capacity electrolytic capacitor, a capacitor display screen is installed on the top outer wall of the multi-layer protective structure to display the percentage of the remaining capacitance of the capacitor core. The display screen can show the percentage of the remaining capacitance of the capacitor core in real time, allowing users to intuitively understand the capacitance status of the capacitor and conveniently charge or replace the capacitor when needed, thus improving the convenience and efficiency of use.

[0017] In this high-capacity electrolytic capacitor, the bottom of the terminal block is coaxially mounted with a threaded mounting post that matches the size of the threaded mounting hole. The mounting post, which matches the size of the threaded mounting hole and is threaded, allows the terminal block to be securely installed on the multi-layer protective structure, ensuring the stability of the connection between the terminal block and the capacitor core. This facilitates installation, disassembly, or replacement, and reduces problems such as poor contact caused by loosening. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] 10. High-capacity capacitor core;

[0023] 20. Multi-layer protective structure; 21. Capacitive display screen; 22. Data display label; 23. Threaded mounting holes; 24. Explosion-proof housing; 25. Buffer filling area; 26. Anti-corrosion coating;

[0024] 30. Terminal block; 31. Connecting ring; 32. Mounting post;

[0025] 40. Positive and negative polarity markings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] A high-capacity electrolytic capacitor, such as Figures 1-3As shown, the capacitor includes a high-capacity capacitor core 10, the surface of which is provided with a multi-layer protective structure 20. The top surface of the multi-layer protective structure 20 is equipped with terminals 30 that are respectively connected to the positive and negative terminals of the high-capacity capacitor core 10. The multi-layer protective structure 20 includes an explosion-proof housing 24, a buffer filling area 25 is provided between the explosion-proof housing 24 and the outer wall of the high-capacity capacitor core 10, and the outer wall of the explosion-proof housing 24 is coated with an anti-corrosion coating 26. The top surface of the multi-layer protective structure 20 has threaded mounting holes 23 for mounting the terminals 30, and each threaded mounting hole 23 has a positive and negative terminal marking 40 on its opening edge to distinguish the positive and negative terminals. The high-capacity capacitor core 10 provides the capacitor with the basic performance of high capacity. The explosion-proof housing 24 in the multi-layer protective structure 20... The capacitor features a buffer filler area 25 located between the explosion-proof housing 24 and the outer wall of the high-capacity capacitor core 10, which can buffer external impacts and protect the core 10. An anti-corrosion coating 26 is applied to the outer wall of the explosion-proof housing 24, enhancing its corrosion resistance and extending the capacitor's lifespan. Terminals 30 are connected to the positive and negative terminals of the high-capacity capacitor core 10 for easy external circuit connection. Threaded mounting holes 23 are used to install the terminals 30, ensuring a stable connection. Positive and negative markings 40 are located at the edge of the opening of each threaded mounting hole 23, allowing users to distinguish between the positive and negative terminals and correctly connect the circuit. These structures work together to give the high-capacity electrolytic capacitor excellent performance, reliability, long service life, and ease of use.

[0029] It is worth noting that the buffer filler area 25 is made of polyacrylamide gel particles or rubber particles, and the width of the buffer filler area 25 is 1-3mm. Through the buffer filler area 25, the polyacrylamide gel particles or rubber particles have good buffering performance. The width of 1-3mm can ensure sufficient buffering space without excessively occupying the internal space of the capacitor. This allows the high-capacity capacitor core 10 to be effectively protected when subjected to external impacts, reducing the risk of core damage caused by impacts and improving the reliability of the capacitor.

[0030] Furthermore, a capacitive display screen 21 is provided on the top outer wall of the multi-layer protective structure 20 to display the percentage of the remaining capacity of the high-capacity capacitor core 10. It can display the percentage of the remaining capacity of the high-capacity capacitor core 10 in real time, so that users can intuitively understand the capacitor's charge status and conveniently charge or replace the capacitor when needed, thereby improving the convenience and efficiency of use.

[0031] Specifically, the outer wall of the multi-layer protective structure 20 is equipped with a data display label 22 for marking the maximum capacitance and rated voltage of the high-capacity capacitor core 10. This label clearly marks important data such as the maximum capacitance and rated voltage of the high-capacity capacitor core 10, allowing users to quickly and accurately understand the capacitor's specifications before use, avoiding usage problems caused by parameter mismatch, and ensuring safe use.

[0032] The bottom of the terminal block 30 is coaxially mounted with a mounting post 32 that is compatible with the size of the threaded mounting hole 23 and is threadedly connected. By setting the mounting post 32 and being compatible with the size of the threaded mounting hole 23 and threadedly connected, the terminal block 30 can be stably installed on the multi-layer protective structure 20, ensuring the stability of the connection between the terminal block and the capacitor core, facilitating installation, disassembly or replacement, and reducing problems such as poor contact caused by loosening.

[0033] In addition, a connecting ring 31 for connecting external wires is installed on the top of the terminal 30. The connecting ring 31 facilitates the connection of external wires, making the connection between the wires and the terminal more convenient and secure, which is beneficial to the transmission of current and improves the efficiency and reliability of the circuit connection.

[0034] It is worth noting that the outer wall of the terminal block 30 is distinguished by different colors or different sizes to differentiate the positive and negative terminals. By using different colors or different sizes to distinguish the positive and negative terminals of the terminal block 30, users can more quickly and accurately distinguish the positive and negative terminals when connecting the circuit, avoiding damage to capacitors or other circuit components due to incorrect connection of positive and negative terminals, thus improving the safety and correctness of use.

[0035] The working principle of this high-capacity electrolytic capacitor:

[0036] First, check the data display label 22 on the outer wall of the multi-layer protective structure 20 to understand the key parameters such as the maximum capacitance and rated voltage of the high-capacity capacitor core 10, and ensure that it meets the usage requirements.

[0037] Then, distinguish the positive and negative terminals by observing the different colors or sizes of the outer wall of the terminal 30, or by checking the positive and negative markings 40 on the edge of the opening of the threaded mounting hole 23; connect the external wire to the connecting ring 31 at the top of the terminal 30. Due to the design of the connecting ring 31, the wire connection can be guaranteed to be firm.

[0038] When installing the capacitor, the capacitor is securely installed in the corresponding position by using the mounting post 32, which is coaxially mounted at the bottom of the terminal post 30 and is adapted to the threaded mounting hole 23 and threadedly connected.

[0039] During use, the capacitor display screen 21 on the top outer wall of the multi-layer protective structure 20 can be viewed at any time to understand the remaining capacitance percentage of the high-capacity capacitor core 10, so as to perform charging or replacement operations in a timely manner.

[0040] Throughout the entire process, the multi-layer protective structure 20 plays an important role; the explosion-proof shell 24 can prevent explosions caused by internal abnormalities; the buffer filling area 25 uses polyacrylamide gel particles or rubber particles with a width of 1-3mm, which can buffer external impacts and protect the inner core; the anti-corrosion coating 26 can enhance the corrosion resistance of the shell and extend the service life of the capacitor.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-capacity electrolytic capacitor, comprising a high-capacity capacitor core (10), characterized in that: The surface of the high-capacity capacitor core (10) is provided with a multi-layer protective structure (20), and the top surface of the multi-layer protective structure (20) is provided with terminals (30) that are respectively connected to the positive and negative poles of the high-capacity capacitor core (10). The multi-layer protective structure (20) includes an explosion-proof shell (24), a buffer filling area (25) is provided between the explosion-proof shell (24) and the outer wall of the high-capacity capacitor core (10), and an anti-corrosion coating (26) is applied to the outer wall of the explosion-proof shell (24). The top surface of the multi-layer protective structure (20) is provided with threaded mounting holes (23) for installing terminals (30), and each threaded mounting hole (23) has a positive and negative marking (40) on its opening edge for distinguishing positive and negative terminals.

2. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The buffer filler area (25) is made of polyacrylamide gel particles or rubber particles, and the width of the buffer filler area (25) is 1-3 mm.

3. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The top outer wall of the multi-layer protective structure (20) is provided with a capacitive display screen (21) for displaying the percentage of the remaining capacitance of the core (10) of the high-capacity capacitor.

4. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The outer wall of the multi-layer protective structure (20) is equipped with a data display label (22) for indicating the maximum capacitance and rated voltage data of the high-capacity capacitor core (10).

5. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The bottom of the terminal block (30) is coaxially mounted with a mounting post (32) that is compatible with the size of the threaded mounting hole (23) and is threadedly connected.

6. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The top of the terminal block (30) is fitted with a connecting ring (31) for connecting external wires.

7. The high-capacity electrolytic capacitor according to claim 1, characterized in that: The outer wall of the terminal block (30) is distinguished by different colors or different sizes to differentiate between positive and negative terminals.

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