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Large-current high-breaking fuse

A high breaking and fuse technology, used in circuits, electrical components, emergency protection devices, etc., can solve problems such as easy explosion and fuse structural defects, achieve high thermal conductivity and insulation performance, and facilitate the absorption of arc energy and energy. reduced effect

Pending Publication Date: 2020-12-04
SICHUAN TIANWEI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-current high-breaking fuse to solve the problem that the existing fuse is prone to explosion due to structural defects when it is applied to a high-current environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]A high-current high-breaking fuse, including a fuse body and a ceramic seat, the fuse body includes a fuse part, a left installation part connected to the left side of the fuse part, and a right installation part connected to the right side of the fuse part, the fuse part Arranged in the ceramic seat, the gap between the fuse part and the ceramic seat is filled with an arc extinguishing medium, the fuse part is a peanut-shaped structure, and a number of through holes are opened on the fuse part, and the ceramic seat is located in the through hole A high-voltage arc-extinguishing silicone rubber column is fixed inside, and a ceramic fixed cover is installed on the ceramic seat.

[0033] Through this arrangement, the fusing part has a peanut-shaped structure, and several through holes are opened on the fusing part, thereby forming a porous, multi-breakpoint, peanut-shaped fusing structure. In the case of the same cross-sectional area as that of a single linear fuse, the cr...

Embodiment 2

[0035] On the basis of Example 1, the material of the arc extinguishing medium is quartz sand.

Embodiment 3

[0037] On the basis of Embodiment 1, a number of threaded holes are opened on the ceramic seat, and a number of mounting holes are correspondingly opened on the ceramic fixing cover, and screws matching the threaded holes are installed in the mounting holes, and the ceramic fixing cover The cover is threadedly connected with the ceramic seat by screws.

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Abstract

The invention discloses a high-current high-breaking fuse, belongs to the technical field of fuses, aims to provide a high-current high-breaking fuse, and solves the problem that an existing fuse is easy to explode when applied to a high-current environment due to structural defects. The fuse comprises a fuse body and a ceramic base, the fuse body comprises a fuse part, a left installation part connected to the left side of the fuse part and a right installation part connected to the right side of the fuse part, the fuse part is arranged in the ceramic base, a gap between the fuse part and theceramic base is filled with an arc extinguishing medium, and the fuse part is of a peanut-shaped structure. A plurality of through holes are formed in the fusing part, high-voltage arc extinguishingsilicon rubber columns are fixedly installed in the through holes in the ceramic base, and a ceramic fixing cover is installed on the ceramic base. The high-current high-breaking fuse is suitable forhigh-current high-breaking fuses.

Description

technical field [0001] The invention belongs to the technical field of fuses, and in particular relates to a high-current high-breaking fuse. Background technique [0002] The fuse is the electronic core component of the circuit connected in series in the circuit system; it is a protection device that ensures the safe operation of the circuit under normal conditions and cuts off the circuit under abnormal conditions. Fuses have a wide range of applications and are often used in circuit systems of military systems such as aerospace, radar stations, ground equipment, underwater equipment, ships, information networks, and weaponry. [0003] High current, strong arc extinguishing ability, and small size are one of the development directions of fuses. It is urgent to use them in high-power heavy equipment systems (such as heavy armored vehicles, aircraft, tanks and other high-power weapons and equipment). The fuse body of the existing domestic fuse is a single linear fuse part, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/08H01H85/165H01H85/20H01H85/38
CPCH01H85/165H01H85/08H01H85/2045H01H85/38H01H2085/388
Inventor 张雄罗晓江钟小毛李慧海王春林
Owner SICHUAN TIANWEI ELECTRONICS
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