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Vacuum cartridge fuse and process for manufacturing the same

A technology of fuse tube and manufacturing process, which is applied in the direction of fuse manufacturing, manufacturing tools, emergency protection devices, etc., which can solve the problems of low welding efficiency, time-consuming and power consumption, and inconformity with energy saving, and achieve good consistency of fusing time and improve Anti-knock level, the effect of shortening the generation time

Active Publication Date: 2008-10-08
DONGGUAN BETTER ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fuse welding process mainly has the following deficiencies: 1. The ambient temperature is high during welding, which may easily cause burns to welders; 2. Bad gases such as smoke will be produced during the welding process, polluting the environment; 3. Gases during the welding process Expansion is prone to unqualified phenomena such as tin leakage and crooked caps; 4. It is also easy to produce defective products such as copper cap scratches, false welding, and cap drop; 5. The welding efficiency is not high, time-consuming and power-consuming, etc.
[0004] Chinese patent application No. 02134292.X discloses a fuse tube and its manufacturing method, which mainly realizes the fixed welding of the fuse by melting glass, but its operation process is very complicated, and the temperature requirement of melting glass is high, and a large amount of heat is lost in the It is wasted in the air, does not meet the requirements of energy saving, and can only be used for some special products

Method used

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  • Vacuum cartridge fuse and process for manufacturing the same
  • Vacuum cartridge fuse and process for manufacturing the same
  • Vacuum cartridge fuse and process for manufacturing the same

Examples

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Effect test

Embodiment 1

[0044] Combination hint figure 2, 4. First, carry out step A (not shown in the figure), and fix the pipe body 2 on the positioning fixture 4. In this embodiment, in the step B, first place the fuse 1 obliquely in the pipe body 2, and make the Both ends of the fuse 1 are exposed on the outside of the tube body 2; then the exposed two ends are bent outward along the end surface of the tube body 2, that is, the fuse 1 is bent into a "Z" shape. Then put the tinned copper cap 3 on one end of the pipe body, put the pipe body 3 with the copper cap 3 together with the positioning fixture 4 into the openable airtight welding cavity 5 of the high-frequency welding machine, and open the high-frequency welding machine. Frequency welding machine for 1-5 seconds, weld the copper cap at this end; take out the positioning fixture 4, put the copper cap on the other end of the pipe body 2, put them together into the airtight welding cavity 5, and use the airtight welding cavity 5 to draw The ...

Embodiment 2

[0046] Combination hint image 3 , 4. First, carry out step A (not shown in the figure), and fix the pipe body 2 on the positioning fixture 4. In this embodiment, steps B and C are combined, that is, the fuse 1 is vertically fixed on the copper cap 3 by tin in advance. Then put the copper cap 3 on the tube body 2 while passing the fuse through the tube body 2, and put the tube body 3 with the copper cap 3 together with the positioning fixture 4 into the openable Open the high-frequency welding machine for 1 to 5 seconds, and weld the copper cap at this end; after taking it out, put another copper cap on it, put it into the sealed welding cavity again, and put the closed welding cap into the closed welding cavity. Cavity 5 is evacuated into a vacuum state by means of an air extraction device, and then the high-frequency welding machine is turned on for 1 to 5 seconds to complete the welding of the copper cap at the other end and take it out.

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Abstract

The present invention relates to a cartridge fuse and a manufacturing technique for the cartridge fuse, in particular to a vacuum cartridge fuse and a manufacturing technique for the cartridge fuse. The interior of main body of the cartridge fuse is in vacuum state. The present invention utilizes high frequency welding technique to solder a fuse, a tube, and a tinned copper cap together as follows: high frequency current is provided by a high frequency welding machine, an enclosed soldering cavity that can be opened is arranged, alternating magnetic field is produced by the high frequency current in the enclosed soldering cavity, the frequency and time of the high frequency current is controlled, so that the tin on the tinned cap is melted and therefore the soldering is completed in the enclosed soldering cavity. The copper cap on one end is soldered with high frequency welding technique; before the other end is soldered, the cavity is pumped into vacuum state to attain the purpose of protecting the finished product of cartridge fuse.

Description

Technical field: [0001] The invention relates to the technical field of fuse tube and its manufacture, in particular to a vacuum fuse tube and its manufacturing process. Background technique: [0002] Due to the limitations of the design and the welding process of the existing fuse tube, the inside of the tube is not vacuum after welding, and the inside is usually filled with air. Fuse products are generally used in live circuits. Under long-term energized conditions, they will generate temperature themselves. Under this temperature condition, if the fuse is in an environment with air around it, because the moisture and oxygen in the air will And so on, the fuse will be corroded, which will affect the life of this product. In addition, the fuse tube generates a lot of heat when it is blown, causing the surrounding medium to expand, so it is prone to explosion hazards; moreover, when the product works in the circuit, it will generate heat, and the heat is usually transmitted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/045H01H69/02B23K13/00B23K13/06
Inventor 韩露高连忠
Owner DONGGUAN BETTER ELECTRONICS TECH
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