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Protective element with grid inside insulating tube

A technology of protection element and insulating tube, applied in the field of protection element with fusing function, can solve the problem of difficulty in further improving the breaking capacity of the protection element, and achieve the effect of improving the breaking capacity and improving the arc extinguishing effect.

Pending Publication Date: 2019-08-16
NANJING SART SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 The technical solution of the protection element in the current market is realized by filling the arc extinguishing material for the breaking of the miniature protection elements in the market, and it is difficult to further improve the breaking capacity of the protection element

Method used

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  • Protective element with grid inside insulating tube
  • Protective element with grid inside insulating tube
  • Protective element with grid inside insulating tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 2 and image 3 As shown, the protection element in this embodiment, especially a miniature protection element, includes solder 1, an insulating tube 2, an electrode 3, an arc extinguishing material 4, a double melt 5-1 / 5-2, and a A plate-shaped grid 6 . The grid 6 in the insulating tube can be made of ceramic material or insulating material such as PCB; it can be formed together with the insulating tube 2, or it can be separately formed and placed into the insulating tube. The insulating tube 2 is tubular, with a square or round shape, and a grid 6 and a receiving cavity formed therein; the electrode 3 is a matching conductive metal cap sleeved on it, which is arranged at both ends of the insulating tube 2, and the double melt 5 The two ends of the -1 / 5-2 are fixed in the middle of the two end electrodes 3 by the solder 1 and form an electrical connection with the two end electrodes 3. The double melt 5-1 / 5-2 is arranged in the arc extinguishing material ...

Embodiment 2

[0035] like Figure 4 and Figure 5 As shown, a protection element, especially a miniature protection element, comprises solder 1, insulating tube 2, electrode 3, arc extinguishing material 4, internal melt 5-1 / 5-2 / 5-3 / 5-4, insulation There are two grids 6 inside the tube, and the two grids cross each other, and the cross section is "cross" shape. The insulating tube 2 is tubular, with a square or circular shape, and the internal grid 6 forms four independent accommodating cavities, and each accommodating cavity is provided with a melt. The electrode 3 is a matching conductive metal cap sleeved on it, which is arranged on both ends of the insulating tube 2, and the two ends of the inner melt 5-1 / 5-2 / 5-3 / 5-4 are fixed to the electrodes at both ends by the solder 1 3 in the middle and form an electrical connection with the electrodes 3 at both ends, and the internal melt 5-1 / 5-2 / 5-3 / 5-4 is arranged in the arc extinguishing material 4 .

[0036] further. When the breaking cur...

Embodiment 3

[0038] like Image 6 and Figure 7 As shown, a protective element, especially a miniature protective element, includes solder 1, insulating tube 2, electrode 3, arc extinguishing material 4, internal melt 5-1 / 5-2 / 5-3, and two inner layers of insulating tube Grid 6, the two grids do not intersect each other. The insulating tube 2 is tubular, square or round in shape, and has two plate-shaped grids 6 inside to form three independent storage cavities, and each storage cavity is correspondingly provided with a melt. The electrode 3 is a matching conductive metal cap set on it, which is arranged at both ends of the insulating tube 2, and the two ends of the internal melt 5-1 / 5-2 / 5-3 are fixed in the middle of the electrodes 3 at both ends by solder 1 and connected to the The electrodes 3 at both ends form an electrical connection, and the internal melt 5-1 / 5-2 / 5-3 / is arranged in the arc-extinguishing material 4 .

[0039] When the breaking current arrives, the internal fuses 5-...

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Abstract

The invention discloses a protective element with a grid inside an insulating tube, which comprises an insulating tube and fuse elements located in the insulating tube. A grid is added in the middle of the insulating tube to divide the inside of the insulating tube into several independent accommodating chambers. Each accommodating chamber is internally provided with one fuse element. Shunting iscarried out by the more than two fuse elements in the breaking process, and each fuse element bears part of the breaking current. The breaking capacity is improved by reducing the breaking current. The arc extinguishing material wraps the fuse elements, and thus, the arc extinguishing effect of the arc extinguishing material is maximized.

Description

technical field [0001] The present invention relates to the technical field of circuit protection devices, in particular to a protection element with a fusing function. Background technique [0002] At present, miniature protection components are all insulated tubular structures. With the development of technology and the needs of daily life, miniature protection components not only require miniaturized design, but also require high breaking capacity. [0003] like figure 1 As shown, it is a protection element in the prior art, including an insulating tube 2', end caps 3' at both ends of the insulating tube, and a melt 5' welded with the end caps at both ends by solder 1', wherein the insulating tube is filled with Arc extinguishing material 4' wrapping the melt. like figure 1 In the technical solution of the protection element in the present invention, the breaking of the miniature protection element on the market is realized by filling the arc extinguishing material, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/38H01H85/08H01H85/175
CPCH01H85/08H01H85/175H01H85/38
Inventor 南式荣杨漫雪陈慷
Owner NANJING SART SCI & TECH DEV
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