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Miniature anti-explosion protection element and manufacturing method thereof

A protection component and miniature technology, which is applied in electrical components, fuse manufacturing, emergency protection devices, etc., can solve the problems of low breaking capacity and poor anti-surge capacity, etc., to improve breaking capacity, improve anti-surge capacity, and improve breaking Characteristics and Effects of Surge Resistance

Active Publication Date: 2015-01-28
NANJING SART SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor anti-surge capability and low breaking capability of existing technical products, the present invention provides an explosion-proof miniature surface-mounted miniature protection element

Method used

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  • Miniature anti-explosion protection element and manufacturing method thereof
  • Miniature anti-explosion protection element and manufacturing method thereof
  • Miniature anti-explosion protection element and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Such as figure 1 and figure 2 As shown, an explosion-proof miniature protection element of the present invention includes an insulating shell 1 , a metal melt 2 , an end electrode 3 , solder 4 , a notch 5 , an arc-extinguishing material 6 and a character mark 7 . In this example, the size of the explosion-proof miniature protection element is 6.1mm*2.5mm*2.5mm (length*width*height). Two ends of the insulating case 1 are respectively fixed with an end electrode 3 , and the fixing method is that the end electrode 3 is wrapped on the end of the insulating case 1 . The metal melt 2 is suspended in the interior of the insulating shell 1, preferably at the center of the insulating shell 1, and the two ends of the metal melt 2 are respectively fixed on the end electrodes 3 on both ends of the insulating shell 1 by solder 4 , and form an electrical connection with the terminal electrode 3 . The arc extinguishing material 6 is fully filled between the insulating casing 1 and...

Embodiment 2

[0053] Such as image 3 As shown, the difference between Embodiment 2 and Embodiment 1 of an explosion-proof miniature protection element of the present invention is that the metal melt 2 is a wire material, and the metal melt 2 is first wound on a glass fiber wire 8 to form a winding Wire structure, and then the winding wire is suspended through the interior of the insulating shell 1, and the two ends of the winding wire are respectively fixed on the two end electrodes 3 provided on the insulating shell 1 by solder 4 to form an electrical connection. The metal melt 2 can also be a metal sheet. The parts of embodiment 2 that are the same as those of embodiment 1 will not be described in detail here.

Embodiment 3

[0055] Such as Figure 4 As shown, the difference between Embodiment 3 and Embodiment 1 of an explosion-proof miniature protection element of the present invention is that a notch 5 is respectively provided at the two ends of the same side of the insulating shell 1, and the size of the notch 5 is 1.8 mm*0.3mm (length*width), that is, the length of the notch 5 accounts for 29.5% of the length of the insulating shell 1, the width of the notch 5 accounts for 12% of the width of the side where the notch 5 is located, and the length of the exposed terminal electrode 3 is 0.4mm. That is, it accounts for 6.6% of the length of the insulating case 1 . The parts of embodiment 3 that are the same as those of embodiment 1 will not be described in detail here.

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Abstract

The invention discloses a miniature anti-explosion protection element and a manufacturing method thereof. The element comprises an insulation housing, a metal melt, end electrodes and arc extinction materials, wherein end electrodes wrap two ends of the insulation housing, the metal melt is suspended inside the insulation housing, two ends of the metal melt are respectively and electrically connected with the two end electrodes wrapping the insulation housing, the arc extinction materials are arranged between the insulation housing and the metal melt, at least one of the ends of the insulation housing is communicated with gaps exposed out of the end electrodes, in the internal space and external space of the insulation housing, and the arc extinction materials contain fumed silica and silica gel. The two ends of the element are full of the arc extinction materials, filling time is short, the fumed silica having the powerful adsorption capacity plays a main role on disjunction and arc extinction, the fumed silica is equivalent to air in heat conductivity, larger-wire-diameter meta melts can be adopted under the condition of the same disjunction capacity requirement, and surge resistant capacity of products is improved.

Description

technical field [0001] The invention relates to a miniature protection element, in particular to an overcurrent protection element with high breaking capacity, strong anti-surge capability and small volume, and a manufacturing method of the protection element, belonging to the field of relay protection. Background technique [0002] Under the great pressure of global health, environmental protection and energy crisis, every country is actively promoting and using energy-saving lighting products. LED is a new generation of light source in the future. Because it meets the social development needs of low-carbon, green and environmental protection, It has become the biggest trend in lighting development today. With the expansion of the LED general lighting market and the LED street lamp market, the requirements for high surge carrying capacity and high breaking capacity of protective components used for overcurrent protection are becoming more and more stringent. At present, th...

Claims

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Application Information

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IPC IPC(8): H01H85/38H01H85/175H01H69/02
CPCH01H69/02H01H85/175H01H85/38H01H2085/388H01H85/43H01H85/0082
Inventor 南式荣杨漫雪刘明龙
Owner NANJING SART SCI & TECH DEV
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