A high-strength aluminum electrolytic capacitor

By using a silicon nitride ceramic shell and a galvanized iron frame to reinforce the structure of the aluminum electrolytic capacitor, the problem of insufficient shell strength was solved, achieving a high-strength aluminum capacitor design with good heat dissipation, thus improving the durability and stability of the equipment.

CN224288032UActive Publication Date: 2026-05-26JINGZHENG ELECTRONIC TECH (HUBEI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGZHENG ELECTRONIC TECH (HUBEI) CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Aluminum electrolytic capacitors have low casing strength and are easily damaged by impact, affecting normal operation.

Method used

A silicon nitride ceramic shell is used as the reinforcing shell, and a galvanized iron frame is used as the reinforcing frame to enhance the structural stability and physical protection of the aluminum capacitor. Silicon nitride ceramic has high strength, high hardness, high temperature resistance, chemical corrosion resistance and excellent insulation properties, while the galvanized iron frame has high strength and toughness.

Benefits of technology

The practicality of aluminum capacitors has been improved, preventing damage from external impacts and compression, enhancing structural stability, and improving heat dissipation through copper alloy extension strips.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of capacitor technology, specifically a high-strength aluminum electrolytic capacitor, comprising an aluminum capacitor with leads electrically connected to its surface, a reinforcing shell fixedly fitted onto its surface, the reinforcing shell being a silicon nitride ceramic shell, and a reinforcing frame fixedly connected to its surface, the reinforcing frame being a galvanized iron frame, with several locking strips fixedly assembled on the inner wall of the reinforcing shell. This utility model, through the setting of the reinforcing shell and reinforcing frame, utilizes the high strength, high hardness, high thermal conductivity, high temperature resistance, chemical corrosion resistance, and excellent insulation properties of silicon nitride ceramic. Therefore, the silicon nitride ceramic reinforcing shell provides reliable physical protection for the aluminum capacitor, preventing damage from external impacts and compression. The galvanized iron frame, with its high strength and toughness, enhances the structural stability of the entire aluminum capacitor, improving its practicality.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to a high-strength aluminum electrolytic capacitor. Background Technology

[0002] Aluminum electrolytic capacitors are capacitors that use aluminum as the main electrode material and utilize the oxide film formed on the aluminum surface as the dielectric. They have advantages such as large capacitance and low cost, and are widely used in electronic circuits for filtering, coupling, bypassing and other circuit functions.

[0003] The above-mentioned and existing technologies have the following drawbacks: When using aluminum electrolytic capacitors, the low strength of the aluminum electrolytic capacitor shell makes them prone to breakage when subjected to impact, affecting their normal operation and reducing their practicality.

[0004] Therefore, a high-strength aluminum electrolytic capacitor is proposed. Utility Model Content

[0005] The purpose of this invention is to address the drawback of aluminum electrolytic capacitors being easily damaged when subjected to impact due to the low strength of their outer casing, and to propose a high-strength aluminum electrolytic capacitor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength aluminum electrolytic capacitor, comprising an aluminum capacitor, wherein the surface of the aluminum capacitor is electrically connected with leads, and a reinforcing shell is fixedly fitted onto the surface of the aluminum capacitor, wherein the reinforcing shell is a silicon nitride ceramic shell, and a reinforcing frame is fixedly connected to the surface of the reinforcing shell, wherein the reinforcing frame is a galvanized iron frame.

[0007] The effects achieved by the above components are as follows: By setting up a reinforcing shell and a reinforcing frame, silicon nitride ceramic has the characteristics of high strength, high hardness, high thermal conductivity, high temperature resistance, chemical corrosion resistance and excellent insulation performance. Therefore, the reinforcing shell made of silicon nitride ceramic can provide reliable physical protection for aluminum capacitors, preventing them from being damaged by external impact and compression, and can also absorb the heat of aluminum capacitors. The reinforcing frame is made of galvanized iron, which has high strength and toughness, can enhance the structural stability of the entire aluminum capacitor and improve the practicality of the aluminum capacitor.

[0008] Preferably, the inner wall of the reinforcing shell is fixedly fitted with a plurality of retaining strips, which are fixedly connected to the aluminum capacitor.

[0009] The effect achieved by the above components is that the retaining strip makes the connection between the reinforcing shell and the aluminum capacitor tighter and more secure.

[0010] Preferably, the surface of the reinforcing frame is fixedly connected with an extension strip, the extension strip having a spiral structure and being a copper alloy strip.

[0011] The effect achieved by the above components is that the extension strip can quickly conduct the heat generated inside the aluminum capacitor to the outside, thereby improving the heat dissipation effect of the aluminum capacitor.

[0012] Preferably, the surface of the extension strip is covered with a protective sleeve.

[0013] The effect achieved by the above components is that the protective sleeve can protect the extension strip and prevent damage to the extension strip before the aluminum capacitor is installed.

[0014] Preferably, the outer circumferential surface of the protective sleeve is provided with a plurality of anti-slip grooves.

[0015] The effect achieved by the above components is that the anti-slip groove can increase the friction of the outer circumference of the protective cover, thereby facilitating the installation and removal of the protective cover.

[0016] Preferably, a magnetic ring is fixedly fitted to the top of the inner wall of the protective sleeve.

[0017] The effect achieved by the above components is that after the magnetic ring is pressed against the surface of the reinforcing frame, it will be attracted to the surface of the reinforcing frame, thereby preventing the protective cover from falling off.

[0018] Preferably, a positioning block is fixedly mounted on the surface of the reinforcing frame, and the positioning block is slidably connected to the magnetic ring.

[0019] The effect achieved by the above components is that when the magnetic ring is placed on the surface of the positioning block, the positioning block will restrict the position of the magnetic ring.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] In this invention, by setting a reinforcing shell and a reinforcing frame, silicon nitride ceramic has the characteristics of high strength, high hardness, high thermal conductivity, high temperature resistance, chemical corrosion resistance and excellent insulation performance. Therefore, the reinforcing shell made of silicon nitride ceramic can provide reliable physical protection for aluminum capacitors, preventing them from being damaged by external impacts and compression. The reinforcing frame is made of galvanized iron, which has high strength and toughness, and can enhance the structural stability of the entire aluminum capacitor and improve its practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the aluminum capacitor part of this utility model;

[0024] Figure 3 This is a cross-sectional view of the aluminum capacitor of this utility model from another angle.

[0025] Figure 4This is a schematic diagram of the disassembled structure of the aluminum capacitor in this utility model.

[0026] Illustration: 1. Aluminum capacitor; 2. Lead; 3. Reinforcing shell; 4. Reinforcing frame; 5. Locking strip; 6. Extension strip; 7. Protective sleeve; 8. Anti-slip groove; 9. Magnetic ring; 10. Positioning block. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] like Figures 1-4 As shown, this utility model provides a high-strength aluminum electrolytic capacitor, including an aluminum capacitor 1, with leads 2 electrically connected to the surface of the aluminum capacitor 1, and a reinforcing shell 3 fixedly fitted onto the surface of the aluminum capacitor 1. The reinforcing shell 3 is a silicon nitride ceramic shell, and a reinforcing frame 4 is fixedly connected to the surface of the reinforcing shell 3. The reinforcing frame 4 is a galvanized iron frame. By setting the reinforcing shell 3 and the reinforcing frame 4, the silicon nitride ceramic has the characteristics of high strength, high hardness, high thermal conductivity, high temperature resistance, chemical corrosion resistance, and excellent insulation performance. Therefore, the reinforcing shell 3 made of silicon nitride ceramic can provide reliable physical protection for the aluminum capacitor 1, preventing it from being damaged by external impacts and compression. In addition to being able to absorb the heat of aluminum capacitor 1, the reinforcing frame 4 is made of galvanized iron. Galvanized iron has high strength and toughness, which can enhance the structural stability of the entire aluminum capacitor 1 and improve its practicality. Several clips 5 are fixedly installed on the inner wall of the reinforcing shell 3. The clips 5 are fixedly connected to the aluminum capacitor 1. The clips 5 can make the connection between the reinforcing shell 3 and the aluminum capacitor 1 tighter and more stable. An extension strip 6 is fixedly connected to the surface of the reinforcing frame 4. The extension strip 6 has a spiral structure and is made of copper alloy. The extension strip 6 can quickly conduct the heat generated inside the aluminum capacitor 1 to the outside, thereby improving the heat dissipation effect of the aluminum capacitor 1.

[0030] The surface of the extension strip 6 is covered with a protective sleeve 7, which protects the extension strip 6 and prevents damage to the extension strip 6 before the aluminum capacitor 1 is installed. Several anti-slip grooves 8 are provided on the outer circumferential surface of the protective sleeve 7. The anti-slip grooves 8 can increase the friction of the outer circumferential surface of the protective sleeve 7, thereby facilitating the installation and removal of the protective sleeve 7. A magnetic ring 9 is fixedly installed on the top of the inner wall of the protective sleeve 7. After the magnetic ring 9 is pressed against the surface of the reinforcing frame 4, it will be attracted to the surface of the reinforcing frame 4, thereby preventing the protective sleeve 7 from falling off. A positioning block 10 is fixedly installed on the surface of the reinforcing frame 4. The positioning block 10 is slidably connected to the magnetic ring 9. When the magnetic ring 9 is fitted on the surface of the positioning block 10, the positioning block 10 will restrict the position of the magnetic ring 9.

[0031] The overall working principle is as follows: silicon nitride ceramics have the characteristics of high strength, high hardness, high thermal conductivity, high temperature resistance, chemical corrosion resistance, and excellent insulation properties. Therefore, the reinforcing shell 3 made of silicon nitride ceramics can provide reliable physical protection for the aluminum capacitor 1, preventing it from being damaged by external impacts and compression. The reinforcing frame 4 is made of galvanized iron, which has high strength and toughness, and can enhance the structural stability of the entire aluminum capacitor 1. The retaining strip 5 can make the connection between the reinforcing shell 3 and the aluminum capacitor 1 tighter and more stable. The extension strip 6 can quickly transfer the heat generated inside the aluminum capacitor 1. The protective sleeve 7 protects the extension strip 6 before installing the aluminum capacitor 1, preventing damage to the extension strip 6. The anti-slip groove 8 increases the friction of the outer circumference of the protective sleeve 7, making it easier to install and remove the protective sleeve 7. After the magnetic ring 9 is pressed against the surface of the reinforcing frame 4, it will be attracted to the surface of the reinforcing frame 4, thus preventing the protective sleeve 7 from falling off. When the magnetic ring 9 is placed on the surface of the positioning block 10, the positioning block 10 will restrict the position of the magnetic ring 9. When using the aluminum capacitor 1, the aluminum capacitor 1 is installed with the help of the pin 2. After installation, the protective sleeve 7 is removed.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-strength aluminum electrolytic capacitor characterized by: The device includes an aluminum capacitor (1), the surface of which is electrically connected to a lead (2), a reinforcing shell (3) is fixedly fitted on the surface of the aluminum capacitor (1), the reinforcing shell (3) is a silicon nitride ceramic shell, and a reinforcing frame (4) is fixedly connected on the surface of the reinforcing shell (3), the reinforcing frame (4) is a galvanized iron frame.

2. A high-strength aluminum electrolytic capacitor according to claim 1, characterized by: The inner wall of the reinforcing shell (3) is fixedly fitted with several clips (5), which are fixedly connected to the aluminum capacitor (1).

3. A high-strength aluminum electrolytic capacitor according to claim 1, characterized in that: The surface of the reinforcing frame (4) is fixedly connected with an extension strip (6), which has a spiral structure and is made of copper alloy.

4. A high-strength aluminum electrolytic capacitor according to claim 3, characterized in that: The surface of the extension strip (6) is covered with a protective sleeve (7).

5. A high-strength aluminum electrolytic capacitor according to claim 4, characterized in that: The outer circumference of the protective sleeve (7) is provided with several anti-slip grooves (8).

6. A high-strength aluminum electrolytic capacitor according to claim 4, characterized in that: A magnetic ring (9) is fixedly fitted to the top of the inner wall of the protective sleeve (7).

7. A high-strength aluminum electrolytic capacitor according to claim 6, characterized in that: The surface of the reinforcing frame (4) is fixedly fitted with a positioning block (10), and the positioning block (10) is slidably connected to the magnetic ring (9).