High-energy hybrid tantalum capacitor mounting and fixing structure

By combining a flange with countersunk tenon bolts, the sealing and vibration performance issues caused by the installation and fixing of high-energy hybrid tantalum capacitors are solved, achieving space saving and improved fixing effect, and is suitable for the installation of high-energy hybrid tantalum capacitors in the aerospace field.

CN224248472UActive Publication Date: 2026-05-15CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
Filing Date
2025-04-14
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing high-energy hybrid tantalum capacitors are prone to damage to sealing performance and degradation of vibration performance due to their mounting and fixing methods. They also occupy a large space, making it difficult to meet the requirements of lightweight and miniaturization in the aerospace field.

Method used

It adopts a flange structure with a polygonal hole in the center and grooved bolt holes at the edges. It is fixed with countersunk tenon bolts. The bolts fit into the grooves, avoiding direct welding, saving space and improving the fixing effect.

Benefits of technology

It achieves the goal of maintaining capacitor sealing and vibration performance without increasing installation volume, providing better fixing effect and meeting the requirements of miniaturization and lightweight electronic devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-energy mixed tantalum capacitor mounting and fixing structure, which comprises a flange plate, a polygonal digging hole is arranged in the middle of the flange plate, a bolt hole with a groove is arranged on the flange plate close to the edge, and a bolt is matched with the bolt hole. The installation size is not increased, the fixing effect is good, and the sealing performance and vibration performance of the capacitor are not damaged. Compared with an existing flange plate and an existing mounting frame, more space is saved, and meanwhile better mounting and fixing effects are achieved compared with capacitor tantalum cover welding screws.
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Description

Technical Field

[0001] This utility model belongs to the field of capacitor manufacturing and supporting technology, specifically relating to a mounting and fixing structure for a high-energy hybrid tantalum capacitor. Background Technology

[0002] With the rapid development of the aviation and aerospace fields, the demand for large-capacity capacitors is increasing. High-energy hybrid tantalum capacitors are in an advantageous position due to their high reliability, high energy density, and large capacity. Large capacity means relatively large size and weight, placing more stringent requirements on the installation and fixing of high-energy hybrid tantalum capacitors. Currently, the main installation and fixing methods for high-energy hybrid tantalum capacitors include bolt fixing, flange fixing, and mounting bracket fixing. Bolt fixing involves welding bolts to the tantalum insulator cover of the capacitor. The tantalum cover is directly subjected to force, which can easily cause bulging and deformation, leading to damage to the insulator's sealing performance, internal fixing abnormalities, and decreased vibration performance. Furthermore, the bolts are close to the glass insulator, and the heat generated during welding can damage the glass insulator, as illustrated in Chinese utility model patent publication number CN203367020U. Existing flange and mounting bracket fixing methods increase volume and require more space to install the capacitor, which runs counter to the development trend of miniaturization, lightweighting, and high integration of electronic devices. Utility Model Content

[0003] To address the aforementioned problems, this utility model aims to provide a mounting and fixing structure for a high-energy hybrid tantalum capacitor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-energy hybrid tantalum capacitor mounting and fixing structure, including a flange, the flange having a polygonal hole in the middle, and a grooved bolt hole near the edge of the flange, with bolts fitted into the bolt hole.

[0005] Preferably, the flange's external shape is adapted to the shape of the inner end face of the high-energy hybrid tantalum capacitor casing.

[0006] Preferably, the bolt holes in the flange are countersunk holes with four symmetrical grooves inside.

[0007] Preferably, the bolt is a countersunk head bolt with tenons, and the bolt has four tenons.

[0008] Preferably, the tenon on the bolt is adapted to the groove in the bolt hole.

[0009] Compared with existing technologies, this invention has the following advantages: This device does not increase installation volume, provides good fixing effect, and does not damage the capacitor's sealing and vibration resistance. It saves more space than existing flanges and mounting brackets, while offering better installation and fixing effects than welding screws to the capacitor's tantalum cap. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the flange structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the countersunk head bolt with tenon structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the flange and bolt assembly structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the high-energy hybrid tantalum capacitor structure of this utility model;

[0016] Wherein: 1-flange, 11-bolt hole, 12-bolt hole mortise structure; 2-bolt, 21-tenon block; 3-high-energy hybrid tantalum capacitor, 31-groove surface, 32-positive electrode pin, 33-negative electrode pin. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0018] Reference Figures 2-4 A flange for mounting and fixing a high-energy hybrid tantalum capacitor is provided. Its external structure is adapted to the shape of the inner end face of the high-energy hybrid tantalum capacitor 3's casing. It is a square with rounded corners. In the center of the square, there are four rhombuses with flattened corners. The four long sides of the rhombus and the four corners of the square form triangles. Bolt holes 11 are provided on the four triangles. The bolt holes 11 are countersunk holes with four symmetrical grooves inside. Bolts 2 are matched with the bolt holes. The bolts are countersunk head bolts with tenons and mortise joints 12. The bolts 2 have four tenons 21, which fit into the grooves in the bolt holes 11.

[0019] Flange 1 is welded into the groove 31 of the lead end of the high-energy hybrid tantalum capacitor 3. Flange 1 has a polygonal opening in the center to provide space for the positive lead 32, the negative lead 33 and the acid injection hole. Bolt mounting holes are provided at the four corners of flange 1, and countersunk bolts are used to install and fix the capacitor.

[0020] Reference Figure 1 and Figure 5 By welding the edge of flange 1 to the shell of high-energy hybrid tantalum capacitor 3, a polygonal hole is provided in the center of flange 1 to provide space for the positive terminal pin 32, the negative terminal pin 33 and the acid injection hole of the capacitor. Bolt mounting holes 11 are provided at the four corners of flange 1, and countersunk bolts 2 are used to install and fix the capacitor.

[0021] This utility model provides a high-energy hybrid tantalum capacitor mounting and fixing structure that saves more space than existing flanges and mounting brackets, while also providing better mounting and fixing effect than welding screws to the tantalum cap of the capacitor.

[0022] The above provides a detailed description of the mounting and fixing structure for a high-energy hybrid tantalum capacitor provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A mounting and fixing structure for a high-energy hybrid tantalum capacitor, characterized in that: Includes a flange (1), which has a polygonal hole in the middle. Near the edge of the flange (1), there is also a grooved bolt hole (11), which is fitted with a bolt (2).

2. The high-energy hybrid tantalum capacitor mounting and fixing structure according to claim 1, characterized in that: The outer shape of the flange (1) is adapted to the shape of the inner end face of the high-energy hybrid tantalum capacitor (3).

3. The high-energy hybrid tantalum capacitor mounting and fixing structure according to claim 1, characterized in that: The bolt holes (11) on the flange (1) are countersunk holes with four symmetrical grooves inside.

4. The high-energy hybrid tantalum capacitor mounting and fixing structure according to claim 3, characterized in that: The bolt (2) is a countersunk head bolt with tenons, and four tenons are provided on the bolt (2).

5. The high-energy hybrid tantalum capacitor mounting and fixing structure according to claim 3 or 4, characterized in that: The tenon on the bolt (2) is adapted to the groove in the bolt hole (11).