A capacitor structure

By improving the capacitor structure design and using a combination of copper plates, tin-plated braided copper wires, anti-torsion plates, and potting compound, the problem of loose capacitor connections was solved, thereby improving the stability and durability of the capacitors, reducing production costs, and simplifying operation.

CN224304539UActive Publication Date: 2026-05-29TECHCAP CAPACITOR INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TECHCAP CAPACITOR INC
Filing Date
2025-05-12
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

During long-term use, the connection between the capacitor core and the leads may loosen due to vibrations and temperature changes in the external environment, affecting the performance and lifespan of the capacitor.

Method used

It adopts a capacitor structure design, including capacitor core, copper plate, tin-plated braided copper wire, lead terminals, anti-torsion plate, stainless steel shell and insulating plate. Through the combination of welding and potting material, connection stability and displacement prevention are ensured.

Benefits of technology

It improves the stability and durability of capacitors, reduces production costs, simplifies installation and maintenance, and is suitable for various electronic devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of capacitor structure, including capacitor core (1), copper plate (2), tinned braided copper wire (3), lead terminal (4), anti-torsion plate (5), stainless steel shell (6), insulating plate (7) and potting material (8), wherein: two electroplating surfaces of capacitor core (1) are connected with two copper plates (2) respectively, one side copper plate (2) is connected with the bottom of one lead terminal (4) by tinned braided copper wire (3), and the other side copper plate (2) is connected with another lead terminal (4);Anti-torsion plate (5) is installed in the lower part of lead terminal (4), and anti-torsion plate (5) is in the shape of waist circle;The bottom and periphery of capacitor core (1) are isolated from stainless steel shell (6) by insulating plate (7).The capacitor structure of the utility model is simple, and spare and accessory processing is simple, can be used in different combination of standard spare and accessory to process and use.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to a capacitor structure. Background Technology

[0002] A capacitor consists of two closely spaced conductive electrodes separated by a layer of non-conductive insulating dielectric. The following is a detailed description of its structure:

[0003] Electrodes: Typically made of materials with good electrical conductivity, such as metals, they are used to store and release electrical charge. Factors such as the area, shape, and material of the electrodes affect the performance of the capacitor. For example, in a parallel-plate capacitor, the electrodes are generally two parallel metal plates; the larger the area, the larger the capacitance. In some miniaturized capacitors, the electrodes may adopt special shapes such as interdigitated shapes to increase the electrode area within a limited space.

[0004] Insulating medium, also known as dielectric, is an indispensable part of a capacitor. Its function is to separate the two electrodes, preventing direct charge conduction between them, while simultaneously inducing polarization under an electric field, thereby increasing the capacitor's charge storage capacity. Common insulating media include air, mica, ceramics, and plastic films. Different insulating media have different dielectric constants; the higher the dielectric constant, the larger the capacitance for the same electrode structure. For example, ceramics have a relatively high dielectric constant, so ceramic capacitors can typically achieve a large capacitance value in a smaller volume.

[0005] In addition, capacitors used in practical applications may also include some encapsulation materials to protect the internal electrodes and insulating dielectric from the influence of the external environment, ensuring the stable and reliable performance of the capacitor.

[0006] However, with long-term use, existing capacitor structures may experience loosening of the connection between the capacitor core and the leads due to vibrations and temperature changes in the external environment, thus affecting the capacitor's performance and lifespan. To address this issue, this invention proposes an improved capacitor structure designed to enhance the capacitor's stability and durability. Utility Model Content

[0007] In order to solve the problems existing in the prior art, the present invention provides a capacitor structure.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A capacitor structure includes a capacitor core 1, copper plates 2, tin-plated braided copper wires 3, lead terminals 4, anti-torsion plates 5, a stainless steel shell 6, an insulating plate 7, and potting compound 8. The two gold-plated surfaces of the capacitor core 1 are connected to two copper plates 2 respectively. One copper plate 2 is connected to the bottom of one lead terminal 4 via the tin-plated braided copper wires 3, and the other copper plate 2 is connected to another lead terminal 4. An anti-torsion plate 5 is installed at the bottom of the lead terminals 4, and the anti-torsion plate 5 is oval-shaped. The bottom and sides of the capacitor core 1 are isolated from the stainless steel shell 6 by the insulating plate 7.

[0010] This utility model also has the following additional technical features:

[0011] As a further specific optimization of the technical solution of this utility model: the copper plate 2 is provided with welding holes 201 and potting holes 202. The gold-plated surface of the capacitor core 1 is soldered to the position of the welding hole 201, and all gaps are filled with potting material 8 at the position of the potting hole 202.

[0012] As a further specific optimization of the technical solution of this utility model: the anti-torsion plate 5 has an oval hole, and the lower part of the two lead-out terminals 4 are embedded in the oval hole of the anti-torsion plate 5.

[0013] As a further specific optimization of the technical solution of this utility model: the potting compound 8 is epoxy resin.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] The capacitor of this invention has a simple structure and its components are easy to manufacture, allowing for different combinations of standard parts. This not only reduces production costs but also improves production efficiency. Furthermore, the capacitor's structural design makes installation and maintenance more convenient, reducing operational difficulty and time. Simultaneously, its compact structure and small footprint make it suitable for installation in various electronic devices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model.

[0018] Explanation of reference numerals in the attached diagram: 1. Capacitor core; 2. Copper plate; 3. Tin-plated braided copper wire; 4. Lead-out terminal; 5. Anti-torsion plate; 6. Stainless steel casing; 7. Insulating plate; 8. Encapsulating material. Detailed Implementation

[0019] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0020] A capacitor structure includes a capacitor core 1, copper plates 2, tin-plated braided copper wires 3, lead terminals 4, an anti-torsion plate 5, a stainless steel casing 6, an insulating plate 7, and potting compound 8. Specifically, the two gold-plated surfaces of the capacitor core 1 are connected to two copper plates 2 respectively. One copper plate 2 is connected to the bottom of a lead terminal 4 via the tin-plated braided copper wires 3, and the other copper plate 2 is connected to another lead terminal 4. An anti-torsion plate 5 is installed at the bottom of the lead terminals 4, and the anti-torsion plate 5 is oval-shaped. The bottom and sides of the capacitor core 1 are isolated from the stainless steel casing 6 by the insulating plate 7 to ensure the stability and safety of the capacitor core 1 during operation.

[0021] The copper plate 2 is provided with welding holes 201 and potting holes 202. The gold-plated surface of the capacitor core 1 is soldered to the welding hole 201 to ensure a good connection between the capacitor core 1 and the copper plate 2. The potting hole 202 is filled with potting compound 8 to prevent the capacitor core 1 from shifting due to temperature changes during operation, thereby affecting the performance of the capacitor.

[0022] The anti-torsion plate 5 has an oval hole, and the lower part of the two lead terminals 4 are embedded in the oval hole of the anti-torsion plate 5. This can effectively prevent the lead terminals 4 from twisting when subjected to external force, thereby ensuring the stability and reliability of the capacitor.

[0023] Encapsulant 8 is epoxy resin. Epoxy resin has good insulation and adhesion properties, which can effectively fill all the gaps inside the capacitor and prevent the capacitor from shifting due to temperature changes during operation, thereby ensuring the stability and reliability of the capacitor.

[0024] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A capacitor structure, characterized in that: The capacitor core (1) includes a copper plate (2), a tin-plated braided copper wire (3), a lead-out terminal (4), an anti-torsion plate (5), a stainless steel shell (6), an insulating plate (7), and a potting compound (8). The two gold-plated surfaces of the capacitor core (1) are connected to two copper plates (2) respectively. One copper plate (2) is connected to the bottom of a lead-out terminal (4) by a tin-plated braided copper wire (3), and the other copper plate (2) is connected to another lead-out terminal (4). An anti-torsion plate (5) is installed at the bottom of the lead-out terminal (4), and the anti-torsion plate (5) is oval in shape. The bottom and sides of the capacitor core (1) are isolated from the stainless steel shell (6) by an insulating plate (7).

2. The capacitor structure according to claim 1, characterized in that: The copper plate (2) is provided with welding holes (201) and potting holes (202). The capacitor core (1) is soldered with solder to the gold-plated surface at the position of the welding hole (201), and all gaps at the position of the potting hole (202) are filled with potting compound (8).

3. The capacitor structure according to claim 1, characterized in that: The anti-torsion plate (5) has an oval hole, and the lower part of the two lead-out terminals (4) is embedded in the oval hole of the anti-torsion plate (5).

4. The capacitor structure according to claim 1, characterized in that: The potting compound (8) is an epoxy resin.