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Ultrathin high-performance protection element and production method

A protection component, high-performance technology, applied in electrical components, emergency protection devices, circuits, etc., can solve problems such as difficulty in improving breaking capacity, poor fuse consistency, and inability to accurately fuse, saving carrier space, accurate fuse efficiency, The effect of protection from contamination

Active Publication Date: 2018-02-13
NANJING SART SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the melting temperature of the fast melting point alloy, welding temperature, and the speed of melting and eroding the wire at the effect point cannot be effectively controlled within a certain range, and the consistency of the fuse is poor, it is difficult to improve the breaking capacity. The overall power consumption of the protection element becomes larger, and it cannot be accurately fused to protect the downstream circuit. Therefore, the prior art needs to use a combination of the above three methods, such as Chinese patent 201621045082.2. , leading to limitations encountered when the entire protection element needs to be reduced in size

Method used

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  • Ultrathin high-performance protection element and production method
  • Ultrathin high-performance protection element and production method
  • Ultrathin high-performance protection element and production method

Examples

Experimental program
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Embodiment 1

[0031] An ultra-thin anti-lightning protection component, such as figure 1 As shown, it includes a melt 1 and internal electrodes 3 arranged on both sides of the melt 1, a flux 2 wrapping the middle part of the melt 1, a wrapping layer 4 wrapping the outer layer of the flux 2, and two outer sides of the wrapping layer 8. The end is also provided with an external electrode 6, the external electrode 6 extends out of the encapsulation layer, and the melt 1 and the internal electrode 3, and the internal electrode 3 and the external electrode 6 form an electrical connection. An arc extinguishing material 5 may also be arranged inside the encapsulation layer 8 .

[0032] The melt 1 can be a combination or alloy of common metals such as silver, copper, tin, etc. In this embodiment, the melt 1 is a metal fuse, which can be linear, curved or spring-shaped, and the inner electrode is a solder ball. Extremely metal cap; encapsulation layer 8 is generally a ceramic tube, a plastic tube, ...

Embodiment 2

[0043] combine image 3 with Figure 4 , an ultra-thin high-performance protective element, including a melt 1 and internal electrodes 3 arranged on both sides of the melt 1, a flux 2 arranged in the middle part of the melt 1, a wrapping layer 4 wrapping the flux 2, and External electrodes 6 are also provided at both ends of the outer side of the sealing layer 8 , and the outer electrodes 6 protrude out of the sealing layer to form electrical connections between the melt 1 and the inner electrodes 3 , and between the inner electrodes 3 and the outer electrodes 6 .

[0044] In this embodiment, the encapsulation layer 8 is an ultra-thin porcelain tube with a rectangular cross-sectional shape and an elliptical inner cavity. The melt 1 is composed of a metal fuse 1-1 wound on a carrier 1-2. In order to adapt to the encapsulation layer 8 In the ultra-thin space of the inner cavity, the carrier 2 is a flat carrier with a certain width and a certain rigidity, and the flux 2 and the ...

Embodiment 3

[0056] combine Image 6 , an ultra-thin high-performance protective element. The difference from the second embodiment is that the carrier 1-2 is made of materials such as polymers that can be softened by heating. In step S201, the metal fuse 1-1 is wound by a wire winding machine In the carrier 1-2 (the carrier 2 at this time can be in the shape of a cylinder, a square column, etc.), the melt 1 is heated as a whole after this step, wherein the carrier 1-2 is softened, and the whole melt 1 is flattened to the required For example, in this embodiment, the melt 1 can be pressed to the required height, and the metal fuse 1-1 is partially sunk into the carrier 1-2, forming an inset on the carrier 1-2 that fits the shape of the fuse Structure 9, the recessed structure 9 is in the shape of a circular arc groove, the metal fuse 1-1 is wound in the recessed structure 9 of the metal fuse of the carrier 1-2, and the metal fuse 1-1 is between the upper and lower two No contact, no short...

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Abstract

The invention provides an ultrathin high-performance protection element and a production method. The ultrathin high-performance protection element comprises an encapsulated layer, a melt and electrodes, wherein the melt is disposed in the encapsulated layer, the melt comprises a metal fuse wire, two ends of the metal fuse wire are respectively connected with electrodes fixed on two ends of the encapsulated layer, a part of the metal fuse wire wraps a co-melt, the co-melt is coated with an wrapping layer, and the wrapping layer is a macromolecular polymer material. The ultrathin high-performance protection element of the invention is light in weight, thin in thickness, small in size, explosion-proof, excellent in lightning surge resistance and precise in fusion.

Description

technical field [0001] The invention relates to a protection element technology, in particular to an ultra-thin high-performance protection element and a manufacturing method. Background technique [0002] The current protection element uses metal wire as the melt. When an overload or short-circuit current passes through the melt, the melt itself generates heat and fuses, thereby protecting the entire circuit. When the protection element is used in an environment with high performance requirements against lightning surges, such as power systems, electrical equipment, and household appliances, it is necessary to set the fuse to be relatively wide or thick. Set a fast fusing point in the middle part of the body, and the fast fusing point can be formed in the following ways: (1) reducing the cross-sectional area of ​​the fuse by punching holes, cutting, thinning, etc. on the melt; (2) in the melt Set low melting point fluxing materials on the melt, such as tin plating on the m...

Claims

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Application Information

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IPC IPC(8): H01H85/041H01H85/046
CPCH01H85/0411H01H85/046H01H2085/0412
Inventor 不公告发明人
Owner NANJING SART SCI & TECH DEV
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