Nanometer copper electrode enhanced capacitor

By improving the packaging sealing and anti-vibration design of nano-copper electrode enhanced capacitors, the problem of performance degradation of film capacitors in humid environments is solved, and higher capacitor sealing and rapid charge response are achieved.

CN223427361UActive Publication Date: 2025-10-10TIANJIN JUHUA ELECTRONIC CO CO LTD
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Patent Information

Application Number
CN202422857949.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-10
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The dielectric properties of existing film capacitors are affected in humid environments, resulting in a decrease in capacitance, increased leakage, and possible electrode corrosion, affecting the performance and life of the capacitor.

Method used

Nano-copper electrode enhanced capacitors are used to improve the packaging sealing and use sealing components and buffer components, including sealing shells, V-grooves, buffer cotton and reinforcing ribs, to improve the moisture resistance and vibration resistance of the capacitors.

Benefits of technology

It improves the sealing and vibration resistance of the capacitor, prevents the entry of external moisture, extends the service life of the capacitor, and enhances the response speed of charge storage and release.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of capacitors, and discloses a nano-copper electrode enhanced capacitor which comprises a shell, a first lantern ring is arranged on the inner wall of the shell, a second lantern ring is arranged on the outer wall of the first lantern ring, a top cover is slidably connected to the interior of the second lantern ring, an electrode body is arranged in the shell, and the top cover is slidably connected to the interior of the second lantern ring. The upper surface of the electrode body is fixedly connected with a connecting wire, the upper surface of the top cover is fixedly connected with cup-shaped covers which are in bilateral symmetry, the inner wall of one cup-shaped cover is provided with a first leading-out terminal, and the other cup-shaped cover is internally provided with a second leading-out terminal. According to the utility model, the positioning block of the lantern ring I is clamped between the shell and the lantern ring II to realize quick assembly, and sealant is injected into the shell for preliminary sealing; the gasket is placed in the sealing shell, the top cover drives the extension tube to abut against the outer wall of the gasket for further sealing, and the V-shaped block is clamped into the V-shaped groove to reinforce sealing again, so that the practicability of the capacitor is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a nano-copper electrode enhanced capacitor. Background Art

[0002] Capacitors are electronic components that store charge, consisting of two electrodes and a dielectric. They can be used for filtering, coupling, energy storage, and more. Nano-copper electrode-enhanced capacitors have attracted considerable attention for the following reasons: In terms of performance, nano-copper electrodes have a large specific surface area, which can significantly increase capacitance, meeting the demand for high energy storage density in applications such as electric vehicles and renewable energy storage systems. They also have good conductivity and high charge and discharge efficiency, making them suitable for high-frequency circuits and fast-charging and discharging equipment. They can also improve frequency characteristics. In terms of stability and reliability, nano-copper electrodes are tightly bonded to the dielectric and have strong aging resistance, excelling in areas with high reliability requirements, such as aerospace and military communications. They also have excellent temperature stability, enabling them to operate normally in scenarios with large temperature fluctuations, such as industrial control and outdoor electronic equipment.

[0003] Capacitors generally include electrolytic capacitors, tantalum electrolytic capacitors, ceramic capacitors, film capacitors, polyester capacitors, monolithic capacitors, safety capacitors, and variable capacitors. Film capacitors, which use plastic film as a dielectric, offer excellent stability, long life, superior high-frequency characteristics, and a low loss factor. Common film dielectrics include polypropylene, polyester, and polycarbonate. Film capacitors are used in applications such as audio filtering and time delay circuits.

[0004] The plastic film dielectric used in existing film capacitors is hygroscopic. In humid environments, this dielectric property is affected, resulting in a decrease in capacitance and increased leakage. Furthermore, humid environments can cause corrosion of the capacitor electrodes, further reducing performance and lifespan. Therefore, nano-copper electrode-enhanced capacitors have been proposed to address these issues. Utility Model Content

[0005] In order to make up for the above shortcomings, the present invention provides a nano-copper electrode enhanced capacitor, which aims to improve the problem that the sealing of the package used in the prior art may have problems, resulting in the capacitor being affected by the external environment during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nano-copper electrode enhanced capacitor, comprising a shell, wherein a first collar is provided on the inner wall of the shell, a second collar is provided on the outer wall of the first collar, a top cover is slidably connected to the interior of the second collar, an electrode body is provided inside the shell, a connecting wire is fixedly connected to the upper surface of the electrode body, a left-right symmetrical cup-shaped cover is fixedly connected to the upper surface of the top cover, a first terminal is provided on the inner wall of one of the cup-shaped covers, a second terminal is provided inside the other cup-shaped cover, and a sealing component for achieving moisture-proofing is installed on the lower surface of the top cover;

[0007] The sealing assembly includes an extension tube, the upper surface of the extension tube is fixedly connected to the lower surface of the top cover, the inner wall of the second collar is fixedly connected to the sealing shell, the inner wall of the sealing shell is slidably connected to a gasket, the outer wall of the extension tube is slidably connected to the inner wall of the sealing shell, the lower surface of the extension tube abuts against the upper surface of the gasket, and a reinforcement assembly is provided on the side of the top cover away from the extension tube.

[0008] Furthermore, the reinforcement component includes a V-shaped groove, the inner wall of the V-shaped groove is opened inside the second sleeve ring, the lower surface of the top cover is fixedly connected with a V-shaped block, and the outer wall of the V-shaped block is slidably connected to the inner wall of the V-shaped groove.

[0009] Furthermore, the outer wall of the first collar is fixedly connected with positioning blocks symmetrically arranged in the upper and lower parts, and the outer walls of the two positioning blocks are slidably connected to the second collar and the inner wall of the shell.

[0010] Furthermore, a reinforcement layer is provided inside the electrode body, and a thin film electrode core is fixedly connected to the inner wall of the reinforcement layer.

[0011] Furthermore, a buffer assembly for reducing vibration is installed on the inner wall of the shell, a positioning ring is fixedly connected to the bottom of the inner wall of the shell, and reinforcing ribs are fixedly connected to the inside of the shell.

[0012] Furthermore, the buffer component includes buffer cotton 2, the outer wall of the buffer cotton 2 is fixedly connected to the inner wall of the shell, and the inner wall of the shell is fixedly connected to buffer cotton 1.

[0013] Furthermore, an opening is formed inside the top cover, and the connecting wire passes through the inner wall of the opening to be electrically connected to the first and second connection terminals.

[0014] Furthermore, a plurality of abutment blocks arranged in a ring array are fixedly connected to an inner wall of the collar, and the lower surfaces of the plurality of abutment blocks abut against the upper surface of the electrode body.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the positioning block on one side of the first collar is engaged between the housing and the second collar to achieve a quick assembly effect, and the sealant is injected into the interior of the housing to achieve a preliminary seal. At this time, the gasket is placed inside the sealing shell, and the extension tube is driven by the top cover to contact the outer wall of the gasket, thereby achieving a further sealing effect. At this time, the V-shaped block is engaged with the interior of the V-shaped groove, thereby achieving a further sealing effect, thereby improving the practicality of the capacitor.

[0017] 2. In the present invention, when the engagement is completed through the first ring, the resistance block will resist the top of the electrode body, and then the first buffer cotton will resist the bottom of the electrode body, thereby achieving the effect of preliminarily preventing the electrode body from vibrating. At the same time, the cooperation of the second buffer cotton and the reinforcing ribs can further protect the electrode body. At the same time, the reinforcing layer is evenly coated on the outer wall of the thin film electrode core, thereby achieving the effect of faster adsorption and release of charge, thereby improving the response speed of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the nano-copper electrode enhanced capacitor proposed in the present invention;

[0019] Figure 2 This is a schematic diagram of the disassembly of the nano-copper electrode enhanced capacitor proposed in the present invention;

[0020] Figure 3 This is a side cross-sectional schematic diagram of the nano-copper electrode enhanced capacitor proposed in the present invention;

[0021] Figure 4 This is an enlarged view of point A in the figure;

[0022] Figure 5 This is a schematic diagram of the structure of the reinforcing rib portion of the nano-copper electrode enhanced capacitor proposed in the present invention;

[0023] Figure 6 This is a schematic diagram of the two-part structure of the buffer cotton of the nano-copper electrode enhanced capacitor proposed in the utility model.

[0024] Legend:

[0025] 1. Shell; 2. Ring 1; 3. Ring 2; 4. Top cover; 5. Electrode body; 6. Connecting wire; 7. Cup cover; 8. Terminal 1; 9. Terminal 2; 10. Opening; 11. Extension tube; 12. Sealing shell; 13. Gasket; 14. V-groove; 15. V-shaped block; 16. Positioning block; 17. Reinforcement layer; 18. Thin film electrode core; 19. Resistance block; 20. Buffer cotton 1; 21. Buffer cotton 2; 22. Positioning ring; 23. Reinforcement rib. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 - Figure 6 , The utility model provides an embodiment: a nano-copper electrode enhanced capacitor, comprising a shell 1, which is used to accommodate and protect internal components, a sleeve ring 2 is provided on the inner wall of the shell 1, and the sleeve ring 2 plays a positioning and supporting role during the assembly process, a sleeve ring 2 is provided on the outer wall of the sleeve ring 2, and the sleeve ring 2 3 cooperates with the sleeve ring 1 to assist in assembling and fixing related components, a top cover 4 is slidably connected to the inside of the sleeve ring 2 3, and the top cover 4 can realize installation and sealing functions, an electrode body 5 is provided inside the shell 1, and the electrode body 5 is the core component of the capacitor, and is used to store and release charge, a connecting wire 6 is fixedly connected to the upper surface of the electrode body 5, and the connecting wire 6 is used to connect the electrode body with an external circuit, a left-right symmetrical cup-shaped cover 7 is fixedly connected to the upper surface of the top cover 4, and the cup-shaped cover 7 plays a role in protecting and isolating the internal terminals, a terminal 1 8 is provided on the inner wall of one cup-shaped cover 7, and the terminal 1 8 serves as an electrode lead-out end of the capacitor and is connected to the external circuit, and a terminal 2 9 is provided inside the other cup-shaped cover 7, and the terminal 2 9 serves as another electrode lead-out end of the capacitor and is connected to the external circuit, The lower surface of the top cover 4 is equipped with a sealing component for achieving moisture-proofing. The sealing component prevents external moisture from entering and ensures the stable performance of the capacitor. The sealing component includes an extension tube 11. The extension tube 11 cooperates with the gasket during the sealing process to enhance the sealing effect. The upper surface of the extension tube 11 is fixedly connected to the lower surface of the top cover 4. The inner wall of the ring 23 is fixedly connected to the sealing shell 12. The sealing shell 12 provides space and structural support for the sealing operation. The inner wall of the sealing shell 12 is slidably connected to the gasket 13. The gasket 13 cooperates with the extension tube to achieve sealing. The outer wall of the extension tube 11 slides It is dynamically connected to the inner wall of the sealing shell 12, and the lower surface of the extension tube 11 is in contact with the upper surface of the gasket 13. A reinforcing component is provided on the side of the top cover 4 away from the extension tube 11. The reinforcing component further enhances the connection stability between the top cover and the second collar and ensures the sealing effect. The reinforcing component includes a V-shaped groove 14. The V-shaped groove 14 is opened inside the second collar 3. A V-shaped block 15 is fixedly connected to the lower surface of the top cover 4. The V-shaped block 15 cooperates with the V-shaped groove to make the connection between the top cover and the second collar more secure and improve the sealing performance. The outer wall of the V-shaped block 15 is slidably connected to the inner wall of the V-groove 14.

[0028] Reference Figure 1 - Figure 6, the outer wall of the ring 1 2 is fixedly connected with a positioning block 16 which is symmetrically arranged in the upper and lower parts. The positioning block 16 is used to determine the relative position of the ring 1 2, the ring 2 3 and the shell 1 during assembly to ensure the accuracy of installation. The outer walls of the two positioning blocks 16 are slidably connected to the inner wall of the ring 2 3 and the shell 1; a reinforcement layer 17 is provided inside the electrode body 5, and the reinforcement layer 17 can improve the performance of the electrode. The inner wall of the reinforcement layer 17 is fixedly connected with a thin film electrode core 18, and the thin film electrode core 18 is a key part of charge storage and transmission; a buffer component for reducing vibration is installed on the inner wall of the shell 1, and the buffer component can reduce the influence of external vibration on internal electrodes and other components. A positioning ring 22 is fixedly connected to the bottom of the inner wall of the shell 1. The positioning ring 22 is used to assist in positioning and fixing internal components. The shell 1 is fixedly connected with a reinforcement layer 17 inside. The ribs 23 and the reinforcing ribs 23 enhance the structural strength of the shell 1; the buffer assembly includes a buffer cotton 21, which can buffer the impact force from the outside. The outer wall of the buffer cotton 21 is fixedly connected to the inner wall of the shell 1, and the inner wall of the shell 1 is fixedly connected to the buffer cotton 1 20, which also plays the role of buffering vibration; an opening 10 is opened through the inside of the top cover 4, and the opening 10 provides a passage for the connecting wire 6 to pass through. The connecting wire 6 passes through the inner wall of the opening 10 and is electrically connected to the terminal 1 8 and the terminal 2 9, thereby realizing the connection between the electrode body 5 and the external circuit; the inner wall of the ring 2 is fixedly connected to a plurality of contact blocks 19 arranged in a ring array, and the contact blocks 19 are used to limit the displacement of the electrode body 5 in the vertical direction, and the lower surfaces of the plurality of contact blocks 19 contact the upper surface of the electrode body 5.

[0029] Working principle: When the capacitor needs to be used, first, the positioning block 16 of the collar 1 2 is engaged between the housing 1 and the collar 2 3 to achieve quick assembly. This engagement method can quickly determine the relative positions of the components and provide a basis for subsequent sealing operations. Subsequently, sealant is injected into the housing 1 to complete the initial sealing. The sealant fills the gaps inside the housing to prevent the entry of outside air, moisture, etc. Next, the gasket 13 is placed in the sealing shell 12. When the top cover 4 is installed, the extension tube 11 under the top cover 4 contacts the gasket 1. 3 outer wall, to achieve further sealing, the close contact between the extension tube 11 and the gasket 13, which increases the reliability of the seal. At the same time, the V-shaped block 15 of the top cover 4 is engaged with the V-shaped groove 14 of the collar 2, which further strengthens the sealing effect. The cooperation between the V-shaped block 15 and the V-shaped groove 14 can effectively prevent the sealing component from loosening during use, improve the sealing of the capacitor, and thus enhance its practicality. When the collar 2 is engaged, the resistance block 19 on its inner wall is in contact with the top of the electrode body 5, and the buffer cotton 20 on the inner wall of the shell is in contact with the electrode body 5. It touches below the electrode body 5, and the two cooperate to initially prevent the electrode body 5 from vibrating. The resistance block 19 and the buffer cotton 1 20 limit and buffer the electrode body 5 from the upper and lower directions, reducing the impact of external vibration on the electrode. At the same time, the buffer cotton 21 and the reinforcing rib 23 on the inner wall of the shell further protect the electrode body 5. The buffer cotton 21 provides additional buffering, and the reinforcing rib 23 enhances the structural strength of the shell, jointly reducing the interference of external factors on the electrode. In addition, the reinforcement layer 17 is evenly coated on the outer wall of the thin film electrode core 18, which can enable the electrode to adsorb and release charges more quickly and improve the response speed of the capacitor. The special properties of the reinforcement layer 17 optimize the charge transfer capability of the electrode and ensure its good performance at work. The reinforcement layer 17 is made of nano-copper. The connecting wire 6 of the electrode body 5 is electrically connected to the output terminal 1 8 and the output terminal 2 9 through the opening 10 of the top cover 4 to realize interaction with the external circuit. This connection method ensures that the capacitor can charge and discharge normally in the circuit and complete its energy storage and release functions.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nano-copper electrode enhanced capacitor, comprising a housing (1), characterized in that: The inner wall of the shell (1) is provided with a collar 1 (2), the outer wall of the collar 1 (2) is provided with a collar 2 (3), the interior of the collar 2 (3) is slidably connected to a top cover (4), the interior of the shell (1) is provided with an electrode body (5), the upper surface of the electrode body (5) is fixedly connected to a connecting wire (6), the upper surface of the top cover (4) is fixedly connected to a left-right symmetrical cup-shaped cover (7), the inner wall of one of the cup-shaped covers (7) is provided with a first connection terminal (8), and the interior of the other cup-shaped cover (7) is provided with a second connection terminal (9), and the lower surface of the top cover (4) is provided with a sealing component for achieving moisture-proofing; The sealing assembly comprises an extension tube (11), the upper surface of the extension tube (11) is fixedly connected to the lower surface of the top cover (4), the inner wall of the second collar (3) is fixedly connected to a sealing shell (12), the inner wall of the sealing shell (12) is slidably connected to a gasket (13), the outer wall of the extension tube (11) is slidably connected to the inner wall of the sealing shell (12), the lower surface of the extension tube (11) abuts against the upper surface of the gasket (13), and a reinforcement assembly is provided on the side of the top cover (4) away from the extension tube (11).

2. The nano-copper electrode enhanced capacitor according to claim 1, characterized in that: The reinforcing assembly includes a V-shaped groove (14), the inner wall of the V-shaped groove (14) is opened inside the second collar (3), the lower surface of the top cover (4) is fixedly connected with a V-shaped block (15), and the outer wall of the V-shaped block (15) is slidably connected to the inner wall of the V-shaped groove (14).

3. The nano-copper electrode enhanced capacitor according to claim 2, characterized in that: The outer wall of the first sleeve (2) is fixedly connected with positioning blocks (16) symmetrically arranged in an upper and lower direction, and the outer walls of the two positioning blocks (16) are slidably connected to the inner wall of the second sleeve (3) and the shell (1).

4. The nano-copper electrode enhanced capacitor according to claim 3, characterized in that: A reinforcement layer (17) is provided inside the electrode body (5), and a thin film electrode core (18) is fixedly connected to the inner wall of the reinforcement layer (17).

5. The nano-copper electrode enhanced capacitor according to claim 4, characterized in that: A buffer assembly for reducing vibration is installed on the inner wall of the shell (1), a positioning ring (22) is fixedly connected to the bottom of the inner wall of the shell (1), and a reinforcing rib (23) is fixedly connected inside the shell (1).

6. The nano-copper electrode enhanced capacitor according to claim 5, characterized in that: The buffer assembly comprises a second buffer cotton (21), the outer wall of the second buffer cotton (21) is fixedly connected to the inner wall of the shell (1), and the inner wall of the shell (1) is fixedly connected to the first buffer cotton (20).

7. The nano-copper electrode enhanced capacitor according to claim 1, characterized in that: An opening (10) is provided inside the top cover (4), and the connecting wire (6) passes through the inner wall of the opening (10) and is electrically connected to the first connecting terminal (8) and the second connecting terminal (9).

8. The nano-copper electrode enhanced capacitor according to claim 1, characterized in that: The inner wall of the sleeve ring (2) is fixedly connected with a plurality of abutment blocks (19) arranged in a ring array, and the lower surfaces of the plurality of abutment blocks (19) abut against the upper surface of the electrode body (5).