Fireproof capacitor

Abstract

The utility model discloses a kind of fireproof capacitor, including capacitor core package and the shell covered in capacitor core package outside;The inner bottom of the shell is equipped with support block for supporting capacitor core package between the bottom of core package;The central position of the support block has through-hole.The utility model sets support block between the inner bottom of shell and the bottom of capacitor core package, supports capacitor core package by support block, and the central position of support block has through-hole, without again to shell for waist procedure in the case of guaranteeing the explosion-proof performance of capacitor, so as to save production cost.

Description

Technical Field

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

[0002] A capacitor is a passive electronic component that stores electrical energy. Its core principle is to store charge through an electric field. Currently, to improve the explosion-proof performance of existing capacitors, a gasket is usually placed between the bottom of the core and the shell. The method of placement is to first perform a waisting process at the bottom of the shell, and then place the gasket and core on the gasket in sequence. This not only has a high production cost, but the gasket also needs to be placed manually, which cannot be automated.

[0003] Therefore, it is necessary to design a fire-resistant capacitor to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fire-resistant capacitor.

[0005] The technical solution of this utility model is: a fireproof capacitor, including a capacitor core and a shell covering the outside of the capacitor core; a support block for supporting the capacitor core is provided between the inner bottom of the shell and the bottom of the core; and a through hole is provided at the center of the support block.

[0006] The support block is made of aluminum; the support block uses an aluminum sleeve.

[0007] The support block is shaped like a frustum.

[0008] The top of the capacitor core package is provided with a stopper; the opening of the outer shell is provided with an inwardly protruding limiting ring platform along the circumferential direction at the stopper on the top of the capacitor core package.

[0009] The outer casing is made of aluminum.

[0010] An explosion-proof valve is provided at the bottom of the outer casing.

[0011] The support block has guide grooves that are evenly distributed circumferentially on both ends of its surface, communicating with the through hole opening.

[0012] The top and bottom edges of the support block are both rounded.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects: The present invention provides a support block between the inner bottom of the shell and the bottom of the capacitor core package, and the support block provides support for the capacitor core package. The support block has a through hole at the center position. While ensuring the explosion-proof performance of the capacitor, there is no need to perform a waisting process on the shell, thereby saving production costs. Attached Figure Description

[0014] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the explosion-proof valve of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the support block of this utility model.

[0018] The labels in the attached diagram are:

[0019] 1. Outer shell; 2. Capacitor core package; 3. Support block; 4. Plug; 5. Explosion-proof valve. Detailed Implementation

[0020] (Example 1)

[0021] See Figures 1 to 3 A fireproof capacitor according to this embodiment includes a capacitor core 2 and a shell 1 covering the outside of the capacitor core 2; a support block 3 for supporting the capacitor core 2 is provided between the inner bottom of the shell 1 and the bottom of the core 2; the support block 3 has a through hole at its center.

[0022] Furthermore, the support block 3 is made of aluminum. In this embodiment, the support block 3 uses an aluminum sleeve, which is easy to form and process and has a low cost.

[0023] Furthermore, the support block 3 is frustum-shaped, which facilitates the insertion of the support block 3 into the outer shell 1.

[0024] Furthermore, in order to facilitate the fixing of the capacitor core package 2, a stopper 4 is provided on the top of the capacitor core package 2; a limiting ring platform with an inward protrusion is provided circumferentially at the opening of the outer shell 1 corresponding to the stopper 4 on the top of the capacitor core package 2.

[0025] Preferably, the outer casing 1 is made of aluminum.

[0026] Furthermore, an explosion-proof valve 5 is provided at the bottom of the outer casing 1 to further improve the explosion-proof performance of the capacitor.

[0027] Furthermore, the two end faces of the support block 3 are evenly distributed with guide grooves that communicate with the through hole openings along the circumferential direction, thereby avoiding blockage of the through holes and ensuring fireproof and explosion-proof performance.

[0028] Furthermore, the top and bottom edges of the support block 3 are rounded, making it easier to insert the support block into the outer casing 1.

[0029] In this embodiment, the fireproof capacitor has a support block 3 between the inner bottom of the shell and the bottom of the capacitor core 2. The support block 3 supports the capacitor core 2, and the support block 3 has a through hole at the center. While ensuring the explosion-proof performance of the capacitor, there is no need to perform a waisting process on the shell, thereby saving production costs.

[0030] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fire-resistant capacitor, characterized in that: It includes a capacitor core package (2) and an outer shell (1) covering the outside of the capacitor core package (2); a support block (3) for supporting the capacitor core package (2) is provided between the inner bottom of the outer shell (1) and the bottom of the core package; the support block (3) has a through hole at its center. The support block (3) is made of aluminum; the support block (3) is fitted with an aluminum sleeve; The support block (3) is frustum-shaped; The support block (3) has guide grooves that communicate with the through hole openings evenly distributed along the circumferential direction on both ends of its two-end surfaces.

2. The fire-resistant capacitor according to claim 1, characterized in that: The top of the capacitor core package (2) is provided with a stopper (4); the opening of the outer shell (1) is provided with an inwardly protruding limiting ring platform at the stopper (4) at the top of the capacitor core package (2) along the circumference.

3. A fire-resistant capacitor according to claim 1, characterized in that: The outer shell (1) is made of aluminum.

4. A fire-resistant capacitor according to claim 1, characterized in that: An explosion-proof valve (5) is provided at the bottom of the outer casing (1).

5. A fire-resistant capacitor according to claim 1, characterized in that: The top and bottom edges of the support block (3) are both rounded.

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